archie/tk4.2/unix/tkUnixWm.c

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/*
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* tkUnixWm.c --
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*
* This module takes care of the interactions between a Tk-based
* application and the window manager. Among other things, it
* implements the "wm" command and passes geometry information
* to the window manager.
*
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* Copyright (c) 1991-1994 The Regents of the University of California.
* Copyright (c) 1994-1996 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) tkUnixWm.c 1.124 96/03/29 14:05:44
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*/
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#include "tkPort.h"
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#include "tkInt.h"
#include <errno.h>
/*
* A data structure of the following type holds information for
* each window manager protocol (such as WM_DELETE_WINDOW) for
* which a handler (i.e. a Tcl command) has been defined for a
* particular top-level window.
*/
typedef struct ProtocolHandler {
Atom protocol; /* Identifies the protocol. */
struct ProtocolHandler *nextPtr;
/* Next in list of protocol handlers for
* the same top-level window, or NULL for
* end of list. */
Tcl_Interp *interp; /* Interpreter in which to invoke command. */
char command[4]; /* Tcl command to invoke when a client
* message for this protocol arrives.
* The actual size of the structure varies
* to accommodate the needs of the actual
* command. THIS MUST BE THE LAST FIELD OF
* THE STRUCTURE. */
} ProtocolHandler;
#define HANDLER_SIZE(cmdLength) \
((unsigned) (sizeof(ProtocolHandler) - 3 + cmdLength))
/*
* A data structure of the following type holds window-manager-related
* information for each top-level window in an application.
*/
typedef struct TkWmInfo {
TkWindow *winPtr; /* Pointer to main Tk information for
* this window. */
Window reparent; /* If the window has been reparented, this
* gives the ID of the ancestor of the window
* that is a child of the root window (may
* not be window's immediate parent). If
* the window isn't reparented, this has the
* value None. */
Tk_Uid titleUid; /* Title to display in window caption. If
* NULL, use name of widget. */
Tk_Uid iconName; /* Name to display in icon. */
Window master; /* Master window for TRANSIENT_FOR property,
* or None. */
XWMHints hints; /* Various pieces of information for
* window manager. */
Tk_Uid leaderName; /* Path name of leader of window group
* (corresponds to hints.window_group).
* Note: this field doesn't get updated
* if leader is destroyed. */
Tk_Uid masterWindowName; /* Path name of window specified as master
* in "wm transient" command, or NULL.
* Note: this field doesn't get updated if
* masterWindowName is destroyed. */
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Tk_Window icon; /* Window to use as icon for this window,
* or NULL. */
Tk_Window iconFor; /* Window for which this window is icon, or
* NULL if this isn't an icon for anyone. */
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int withdrawn; /* Non-zero means window has been withdrawn. */
/*
* Information used to construct an XSizeHints structure for
* the window manager:
*/
int sizeHintsFlags; /* Flags word for XSizeHints structure.
* If the PBaseSize flag is set then the
* window is gridded; otherwise it isn't
* gridded. */
int minWidth, minHeight; /* Minimum dimensions of window, in
* grid units, not pixels. */
int maxWidth, maxHeight; /* Maximum dimensions of window, in
* grid units, not pixels. */
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Tk_Window gridWin; /* Identifies the window that controls
* gridding for this top-level, or NULL if
* the top-level isn't currently gridded. */
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int widthInc, heightInc; /* Increments for size changes (# pixels
* per step). */
struct {
int x; /* numerator */
int y; /* denominator */
} minAspect, maxAspect; /* Min/max aspect ratios for window. */
int reqGridWidth, reqGridHeight;
/* The dimensions of the window (in
* grid units) requested through
* the geometry manager. */
int gravity; /* Desired window gravity. */
/*
* Information used to manage the size and location of a window.
*/
int width, height; /* Desired dimensions of window, specified
* in grid units. These values are
* set by the "wm geometry" command and by
* ConfigureNotify events (for when wm
* resizes window). -1 means user hasn't
* requested dimensions. */
int x, y; /* Desired X and Y coordinates for window.
* These values are set by "wm geometry",
* plus by ConfigureNotify events (when wm
* moves window). These numbers are
* different than the numbers stored in
* winPtr->changes because (a) they could be
* measured from the right or bottom edge
* of the screen (see WM_NEGATIVE_X and
* WM_NEGATIVE_Y flags) and (b) if the window
* has been reparented then they refer to the
* parent rather than the window itself. */
int parentWidth, parentHeight;
/* Width and height of reparent, in pixels
* *including border*. If window hasn't been
* reparented then these will be the outer
* dimensions of the window, including
* border. */
int xInParent, yInParent; /* Offset of window within reparent, measured
* from upper-left outer corner of parent's
* border to upper-left outer corner of child's
* border. If not reparented then these are
* zero. */
int configWidth, configHeight;
/* Dimensions passed to last request that we
* issued to change geometry of window. Used
* to eliminate redundant resize operations. */
/*
* Information about the virtual root window for this top-level,
* if there is one.
*/
Window vRoot; /* Virtual root window for this top-level,
* or None if there is no virtual root
* window (i.e. just use the screen's root). */
int vRootX, vRootY; /* Position of the virtual root inside the
* root window. If the WM_VROOT_OFFSET_STALE
* flag is set then this information may be
* incorrect and needs to be refreshed from
* the X server. If vRoot is None then these
* values are both 0. */
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int vRootWidth, vRootHeight;/* Dimensions of the virtual root window.
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* If vRoot is None, gives the dimensions
* of the containing screen. This information
* is never stale, even though vRootX and
* vRootY can be. */
/*
* Miscellaneous information.
*/
ProtocolHandler *protPtr; /* First in list of protocol handlers for
* this window (NULL means none). */
int cmdArgc; /* Number of elements in cmdArgv below. */
char **cmdArgv; /* Array of strings to store in the
* WM_COMMAND property. NULL means nothing
* available. */
char *clientMachine; /* String to store in WM_CLIENT_MACHINE
* property, or NULL. */
int flags; /* Miscellaneous flags, defined below. */
struct TkWmInfo *nextPtr; /* Next in list of all top-level windows. */
} WmInfo;
/*
* Flag values for WmInfo structures:
*
* WM_NEVER_MAPPED - non-zero means window has never been
* mapped; need to update all info when
* window is first mapped.
* WM_UPDATE_PENDING - non-zero means a call to UpdateGeometryInfo
* has already been scheduled for this
* window; no need to schedule another one.
* WM_NEGATIVE_X - non-zero means x-coordinate is measured in
* pixels from right edge of screen, rather
* than from left edge.
* WM_NEGATIVE_Y - non-zero means y-coordinate is measured in
* pixels up from bottom of screen, rather than
* down from top.
* WM_UPDATE_SIZE_HINTS - non-zero means that new size hints need to be
* propagated to window manager.
* WM_SYNC_PENDING - set to non-zero while waiting for the window
* manager to respond to some state change.
* WM_VROOT_OFFSET_STALE - non-zero means that (x,y) offset information
* about the virtual root window is stale and
* needs to be fetched fresh from the X server.
* WM_ABOUT_TO_MAP - non-zero means that the window is about to
* be mapped by TkWmMapWindow. This is used
* by UpdateGeometryInfo to modify its behavior.
* WM_MOVE_PENDING - non-zero means the application has requested
* a new position for the window, but it hasn't
* been reflected through the window manager
* yet.
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* WM_COLORMAPS_EXPLICIT - non-zero means the colormap windows were
* set explicitly via "wm colormapwindows".
* WM_ADDED_TOPLEVEL_COLORMAP - non-zero means that when "wm colormapwindows"
* was called the top-level itself wasn't
* specified, so we added it implicitly at
* the end of the list.
* WM_WIDTH_NOT_RESIZABLE - non-zero means that we're not supposed to
* allow the user to change the width of the
* window (controlled by "wm resizable"
* command).
* WM_HEIGHT_NOT_RESIZABLE - non-zero means that we're not supposed to
* allow the user to change the height of the
* window (controlled by "wm resizable"
* command).
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*/
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#define WM_NEVER_MAPPED 1
#define WM_UPDATE_PENDING 2
#define WM_NEGATIVE_X 4
#define WM_NEGATIVE_Y 8
#define WM_UPDATE_SIZE_HINTS 0x10
#define WM_SYNC_PENDING 0x20
#define WM_VROOT_OFFSET_STALE 0x40
#define WM_ABOUT_TO_MAP 0x100
#define WM_MOVE_PENDING 0x200
#define WM_COLORMAPS_EXPLICIT 0x400
#define WM_ADDED_TOPLEVEL_COLORMAP 0x800
#define WM_WIDTH_NOT_RESIZABLE 0x1000
#define WM_HEIGHT_NOT_RESIZABLE 0x2000
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/*
* This module keeps a list of all top-level windows, primarily to
* simplify the job of Tk_CoordsToWindow.
*/
static WmInfo *firstWmPtr = NULL; /* Points to first top-level window. */
/*
* The variable below is used to enable or disable tracing in this
* module. If tracing is enabled, then information is printed on
* standard output about interesting interactions with the window
* manager.
*/
static int wmTracing = 0;
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/*
* The following structure is the official type record for geometry
* management of top-level windows.
*/
static void TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
Tk_Window tkwin));
static Tk_GeomMgr wmMgrType = {
"wm", /* name */
TopLevelReqProc, /* requestProc */
(Tk_GeomLostSlaveProc *) NULL, /* lostSlaveProc */
};
/*
* Structures of the following type are used for communication between
* WaitForEvent, WaitRestrictProc, and WaitTimeoutProc.
*/
typedef struct WaitRestrictInfo {
Display *display; /* Window belongs to this display. */
Window window; /* We're waiting for events on this window. */
int type; /* We only care about this type of event. */
XEvent *eventPtr; /* Where to store the event when it's found. */
int foundEvent; /* Non-zero means that an event of the
* desired type has been found. */
int timeout; /* Non-zero means that too much time elapsed
* while waiting, and we should just give
* up. */
} WaitRestrictInfo;
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/*
* Forward declarations for procedures defined in this file:
*/
static int ComputeReparentGeometry _ANSI_ARGS_((TkWindow *winPtr));
static void ConfigureEvent _ANSI_ARGS_((TkWindow *winPtr,
XConfigureEvent *eventPtr));
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static void GetMaxSize _ANSI_ARGS_((WmInfo *wmPtr,
int *maxWidthPtr, int *maxHeightPtr));
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static int ParseGeometry _ANSI_ARGS_((Tcl_Interp *interp,
char *string, TkWindow *winPtr));
static void ReparentEvent _ANSI_ARGS_((TkWindow *winPtr,
XReparentEvent *eventPtr));
static void TopLevelEventProc _ANSI_ARGS_((ClientData clientData,
XEvent *eventPtr));
static void TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
Tk_Window tkwin));
static void UpdateGeometryInfo _ANSI_ARGS_((
ClientData clientData));
static void UpdateHints _ANSI_ARGS_((TkWindow *winPtr));
static void UpdateSizeHints _ANSI_ARGS_((TkWindow *winPtr));
static void UpdateVRootGeometry _ANSI_ARGS_((WmInfo *wmPtr));
static void UpdateWmProtocols _ANSI_ARGS_((WmInfo *wmPtr));
static void WaitForConfigureNotify _ANSI_ARGS_((TkWindow *winPtr,
unsigned long serial));
static int WaitForEvent _ANSI_ARGS_((Display *display,
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Window window, int type, XEvent *eventPtr));
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static void WaitForMapNotify _ANSI_ARGS_((TkWindow *winPtr,
int mapped));
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static Tk_RestrictAction
WaitRestrictProc _ANSI_ARGS_((ClientData clientData,
XEvent *eventPtr));
static void WaitTimeoutProc _ANSI_ARGS_((ClientData clientData));
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/*
*--------------------------------------------------------------
*
* TkWmNewWindow --
*
* This procedure is invoked whenever a new top-level
* window is created. Its job is to initialize the WmInfo
* structure for the window.
*
* Results:
* None.
*
* Side effects:
* A WmInfo structure gets allocated and initialized.
*
*--------------------------------------------------------------
*/
void
TkWmNewWindow(winPtr)
TkWindow *winPtr; /* Newly-created top-level window. */
{
register WmInfo *wmPtr;
wmPtr = (WmInfo *) ckalloc(sizeof(WmInfo));
wmPtr->winPtr = winPtr;
wmPtr->reparent = None;
wmPtr->titleUid = NULL;
wmPtr->iconName = NULL;
wmPtr->master = None;
wmPtr->hints.flags = InputHint | StateHint;
wmPtr->hints.input = True;
wmPtr->hints.initial_state = NormalState;
wmPtr->hints.icon_pixmap = None;
wmPtr->hints.icon_window = None;
wmPtr->hints.icon_x = wmPtr->hints.icon_y = 0;
wmPtr->hints.icon_mask = None;
wmPtr->hints.window_group = None;
wmPtr->leaderName = NULL;
wmPtr->masterWindowName = NULL;
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wmPtr->icon = NULL;
wmPtr->iconFor = NULL;
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wmPtr->withdrawn = 0;
wmPtr->sizeHintsFlags = 0;
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wmPtr->minWidth = wmPtr->minHeight = 1;
/*
* Default the maximum dimensions to the size of the display, minus
* a guess about how space is needed for window manager decorations.
*/
wmPtr->maxWidth = 0;
wmPtr->maxHeight = 0;
wmPtr->gridWin = NULL;
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wmPtr->widthInc = wmPtr->heightInc = 1;
wmPtr->minAspect.x = wmPtr->minAspect.y = 1;
wmPtr->maxAspect.x = wmPtr->maxAspect.y = 1;
wmPtr->reqGridWidth = wmPtr->reqGridHeight = -1;
wmPtr->gravity = NorthWestGravity;
wmPtr->width = -1;
wmPtr->height = -1;
wmPtr->x = winPtr->changes.x;
wmPtr->y = winPtr->changes.y;
wmPtr->parentWidth = winPtr->changes.width
+ 2*winPtr->changes.border_width;
wmPtr->parentHeight = winPtr->changes.height
+ 2*winPtr->changes.border_width;
wmPtr->xInParent = wmPtr->yInParent = 0;
wmPtr->configWidth = -1;
wmPtr->configHeight = -1;
wmPtr->vRoot = None;
wmPtr->protPtr = NULL;
wmPtr->cmdArgv = NULL;
wmPtr->clientMachine = NULL;
wmPtr->flags = WM_NEVER_MAPPED;
wmPtr->nextPtr = firstWmPtr;
firstWmPtr = wmPtr;
winPtr->wmInfoPtr = wmPtr;
UpdateVRootGeometry(wmPtr);
/*
* Tk must monitor structure events for top-level windows, in order
* to detect size and position changes caused by window managers.
*/
Tk_CreateEventHandler((Tk_Window) winPtr, StructureNotifyMask,
TopLevelEventProc, (ClientData) winPtr);
/*
* Arrange for geometry requests to be reflected from the window
* to the window manager.
*/
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Tk_ManageGeometry((Tk_Window) winPtr, &wmMgrType, (ClientData) 0);
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}
/*
*--------------------------------------------------------------
*
* TkWmMapWindow --
*
* This procedure is invoked to map a top-level window. This
* module gets a chance to update all window-manager-related
* information in properties before the window manager sees
* the map event and checks the properties. It also gets to
* decide whether or not to even map the window after all.
*
* Results:
* None.
*
* Side effects:
* Properties of winPtr may get updated to provide up-to-date
* information to the window manager. The window may also get
* mapped, but it may not be if this procedure decides that
* isn't appropriate (e.g. because the window is withdrawn).
*
*--------------------------------------------------------------
*/
void
TkWmMapWindow(winPtr)
TkWindow *winPtr; /* Top-level window that's about to
* be mapped. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
XTextProperty textProp;
if (wmPtr->flags & WM_NEVER_MAPPED) {
wmPtr->flags &= ~WM_NEVER_MAPPED;
/*
* This is the first time this window has ever been mapped.
* Store all the window-manager-related information for the
* window.
*/
if (wmPtr->titleUid == NULL) {
wmPtr->titleUid = winPtr->nameUid;
}
if (XStringListToTextProperty(&wmPtr->titleUid, 1, &textProp) != 0) {
XSetWMName(winPtr->display, winPtr->window, &textProp);
XFree((char *) textProp.value);
}
TkWmSetClass(winPtr);
if (wmPtr->iconName != NULL) {
XSetIconName(winPtr->display, winPtr->window, wmPtr->iconName);
}
if (wmPtr->master != None) {
XSetTransientForHint(winPtr->display, winPtr->window,
wmPtr->master);
}
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
UpdateHints(winPtr);
UpdateWmProtocols(wmPtr);
if (wmPtr->cmdArgv != NULL) {
XSetCommand(winPtr->display, winPtr->window, wmPtr->cmdArgv,
wmPtr->cmdArgc);
}
if (wmPtr->clientMachine != NULL) {
if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
!= 0) {
XSetWMClientMachine(winPtr->display, winPtr->window,
&textProp);
XFree((char *) textProp.value);
}
}
}
if (wmPtr->hints.initial_state == WithdrawnState) {
return;
}
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if (wmPtr->iconFor != NULL) {
/*
* This window is an icon for somebody else. Make sure that
* the geometry is up-to-date, then return without mapping
* the window.
*/
if (wmPtr->flags & WM_UPDATE_PENDING) {
Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
}
UpdateGeometryInfo((ClientData) winPtr);
return;
}
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wmPtr->flags |= WM_ABOUT_TO_MAP;
if (wmPtr->flags & WM_UPDATE_PENDING) {
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Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
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}
UpdateGeometryInfo((ClientData) winPtr);
wmPtr->flags &= ~WM_ABOUT_TO_MAP;
/*
* Map the window, then wait to be sure that the window manager has
* processed the map operation.
*/
XMapWindow(winPtr->display, winPtr->window);
if (wmPtr->hints.initial_state == NormalState) {
WaitForMapNotify(winPtr, 1);
}
}
/*
*--------------------------------------------------------------
*
* TkWmUnmapWindow --
*
* This procedure is invoked to unmap a top-level window. The
* only thing it does special is to wait for the window actually
* to be unmapped.
*
* Results:
* None.
*
* Side effects:
* Unmaps the window.
*
*--------------------------------------------------------------
*/
void
TkWmUnmapWindow(winPtr)
TkWindow *winPtr; /* Top-level window that's about to
* be mapped. */
{
/*
* It seems to be important to wait after unmapping a top-level
* window until the window really gets unmapped. I don't completely
* understand all the interactions with the window manager, but if
* we go on without waiting, and if the window is then mapped again
* quickly, events seem to get lost so that we think the window isn't
* mapped when in fact it is mapped. I suspect that this has something
* to do with the window manager filtering Map events (and possily not
* filtering Unmap events?).
*/
XUnmapWindow(winPtr->display, winPtr->window);
WaitForMapNotify(winPtr, 0);
}
/*
*--------------------------------------------------------------
*
* TkWmDeadWindow --
*
* This procedure is invoked when a top-level window is
* about to be deleted. It cleans up the wm-related data
* structures for the window.
*
* Results:
* None.
*
* Side effects:
* The WmInfo structure for winPtr gets freed up.
*
*--------------------------------------------------------------
*/
void
TkWmDeadWindow(winPtr)
TkWindow *winPtr; /* Top-level window that's being deleted. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
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WmInfo *wmPtr2;
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if (wmPtr == NULL) {
return;
}
if (firstWmPtr == wmPtr) {
firstWmPtr = wmPtr->nextPtr;
} else {
register WmInfo *prevPtr;
for (prevPtr = firstWmPtr; ; prevPtr = prevPtr->nextPtr) {
if (prevPtr == NULL) {
panic("couldn't unlink window in TkWmDeadWindow");
}
if (prevPtr->nextPtr == wmPtr) {
prevPtr->nextPtr = wmPtr->nextPtr;
break;
}
}
}
if (wmPtr->hints.flags & IconPixmapHint) {
Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
}
if (wmPtr->hints.flags & IconMaskHint) {
Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
}
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if (wmPtr->icon != NULL) {
wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
wmPtr2->iconFor = NULL;
wmPtr2->withdrawn = 1;
}
if (wmPtr->iconFor != NULL) {
wmPtr2 = ((TkWindow *) wmPtr->iconFor)->wmInfoPtr;
wmPtr2->icon = NULL;
wmPtr2->hints.flags &= ~IconWindowHint;
UpdateHints((TkWindow *) wmPtr->iconFor);
}
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while (wmPtr->protPtr != NULL) {
ProtocolHandler *protPtr;
protPtr = wmPtr->protPtr;
wmPtr->protPtr = protPtr->nextPtr;
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Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
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}
if (wmPtr->cmdArgv != NULL) {
ckfree((char *) wmPtr->cmdArgv);
}
if (wmPtr->clientMachine != NULL) {
ckfree((char *) wmPtr->clientMachine);
}
if (wmPtr->flags & WM_UPDATE_PENDING) {
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Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
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}
ckfree((char *) wmPtr);
winPtr->wmInfoPtr = NULL;
}
/*
*--------------------------------------------------------------
*
* TkWmSetClass --
*
* This procedure is invoked whenever a top-level window's
* class is changed. If the window has been mapped then this
* procedure updates the window manager property for the
* class. If the window hasn't been mapped, the update is
* deferred until just before the first mapping.
*
* Results:
* None.
*
* Side effects:
* A window property may get updated.
*
*--------------------------------------------------------------
*/
void
TkWmSetClass(winPtr)
TkWindow *winPtr; /* Newly-created top-level window. */
{
if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
return;
}
if (winPtr->classUid != NULL) {
XClassHint *classPtr;
classPtr = XAllocClassHint();
classPtr->res_name = winPtr->nameUid;
classPtr->res_class = winPtr->classUid;
XSetClassHint(winPtr->display, winPtr->window, classPtr);
XFree((char *) classPtr);
}
}
/*
*----------------------------------------------------------------------
*
* Tk_WmCmd --
*
* This procedure is invoked to process the "wm" Tcl command.
* See the user documentation for details on what it does.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation.
*
*----------------------------------------------------------------------
*/
/* ARGSUSED */
int
Tk_WmCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
Tk_Window tkwin = (Tk_Window) clientData;
TkWindow *winPtr;
register WmInfo *wmPtr;
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int c;
size_t length;
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if (argc < 2) {
wrongNumArgs:
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " option window ?arg ...?\"", (char *) NULL);
return TCL_ERROR;
}
c = argv[1][0];
length = strlen(argv[1]);
if ((c == 't') && (strncmp(argv[1], "tracing", length) == 0)
&& (length >= 3)) {
if ((argc != 2) && (argc != 3)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " tracing ?boolean?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 2) {
interp->result = (wmTracing) ? "on" : "off";
return TCL_OK;
}
return Tcl_GetBoolean(interp, argv[2], &wmTracing);
}
if (argc < 3) {
goto wrongNumArgs;
}
winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[2], tkwin);
if (winPtr == NULL) {
return TCL_ERROR;
}
if (!(winPtr->flags & TK_TOP_LEVEL)) {
Tcl_AppendResult(interp, "window \"", winPtr->pathName,
"\" isn't a top-level window", (char *) NULL);
return TCL_ERROR;
}
wmPtr = winPtr->wmInfoPtr;
if ((c == 'a') && (strncmp(argv[1], "aspect", length) == 0)) {
int numer1, denom1, numer2, denom2;
if ((argc != 3) && (argc != 7)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " aspect window ?minNumer minDenom ",
"maxNumer maxDenom?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->sizeHintsFlags & PAspect) {
sprintf(interp->result, "%d %d %d %d", wmPtr->minAspect.x,
wmPtr->minAspect.y, wmPtr->maxAspect.x,
wmPtr->maxAspect.y);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->sizeHintsFlags &= ~PAspect;
} else {
if ((Tcl_GetInt(interp, argv[3], &numer1) != TCL_OK)
|| (Tcl_GetInt(interp, argv[4], &denom1) != TCL_OK)
|| (Tcl_GetInt(interp, argv[5], &numer2) != TCL_OK)
|| (Tcl_GetInt(interp, argv[6], &denom2) != TCL_OK)) {
return TCL_ERROR;
}
if ((numer1 <= 0) || (denom1 <= 0) || (numer2 <= 0) ||
(denom2 <= 0)) {
interp->result = "aspect number can't be <= 0";
return TCL_ERROR;
}
wmPtr->minAspect.x = numer1;
wmPtr->minAspect.y = denom1;
wmPtr->maxAspect.x = numer2;
wmPtr->maxAspect.y = denom2;
wmPtr->sizeHintsFlags |= PAspect;
}
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
} else if ((c == 'c') && (strncmp(argv[1], "client", length) == 0)
&& (length >= 2)) {
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " client window ?name?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->clientMachine != NULL) {
interp->result = wmPtr->clientMachine;
}
return TCL_OK;
}
if (argv[3][0] == 0) {
if (wmPtr->clientMachine != NULL) {
ckfree((char *) wmPtr->clientMachine);
wmPtr->clientMachine = NULL;
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XDeleteProperty(winPtr->display, winPtr->window,
Tk_InternAtom((Tk_Window) winPtr,
"WM_CLIENT_MACHINE"));
}
}
return TCL_OK;
}
if (wmPtr->clientMachine != NULL) {
ckfree((char *) wmPtr->clientMachine);
}
wmPtr->clientMachine = (char *)
ckalloc((unsigned) (strlen(argv[3]) + 1));
strcpy(wmPtr->clientMachine, argv[3]);
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XTextProperty textProp;
if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
!= 0) {
XSetWMClientMachine(winPtr->display, winPtr->window,
&textProp);
XFree((char *) textProp.value);
}
}
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} else if ((c == 'c') && (strncmp(argv[1], "colormapwindows", length) == 0)
&& (length >= 3)) {
Window *cmapList;
TkWindow *winPtr2;
int count, i, windowArgc, gotToplevel;
char buffer[20], **windowArgv;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " colormapwindows window ?windowList?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
Tk_MakeWindowExist((Tk_Window) winPtr);
if (XGetWMColormapWindows(winPtr->display, winPtr->window,
&cmapList, &count) == 0) {
return TCL_OK;
}
for (i = 0; i < count; i++) {
if ((i == (count-1))
&& (wmPtr->flags & WM_ADDED_TOPLEVEL_COLORMAP)) {
break;
}
winPtr2 = (TkWindow *) Tk_IdToWindow(winPtr->display,
cmapList[i]);
if (winPtr2 == NULL) {
sprintf(buffer, "0x%lx", cmapList[i]);
Tcl_AppendElement(interp, buffer);
} else {
Tcl_AppendElement(interp, winPtr2->pathName);
}
}
XFree((char *) cmapList);
return TCL_OK;
}
if (Tcl_SplitList(interp, argv[3], &windowArgc, &windowArgv)
!= TCL_OK) {
return TCL_ERROR;
}
cmapList = (Window *) ckalloc((unsigned)
((windowArgc+1)*sizeof(Window)));
gotToplevel = 0;
for (i = 0; i < windowArgc; i++) {
winPtr2 = (TkWindow *) Tk_NameToWindow(interp, windowArgv[i],
tkwin);
if (winPtr2 == NULL) {
ckfree((char *) cmapList);
ckfree((char *) windowArgv);
return TCL_ERROR;
}
if (winPtr2 == winPtr) {
gotToplevel = 1;
}
if (winPtr2->window == None) {
Tk_MakeWindowExist((Tk_Window) winPtr2);
}
cmapList[i] = winPtr2->window;
}
if (!gotToplevel) {
wmPtr->flags |= WM_ADDED_TOPLEVEL_COLORMAP;
cmapList[windowArgc] = winPtr->window;
windowArgc++;
} else {
wmPtr->flags &= ~WM_ADDED_TOPLEVEL_COLORMAP;
}
wmPtr->flags |= WM_COLORMAPS_EXPLICIT;
XSetWMColormapWindows(winPtr->display, winPtr->window, cmapList,
windowArgc);
ckfree((char *) cmapList);
ckfree((char *) windowArgv);
return TCL_OK;
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} else if ((c == 'c') && (strncmp(argv[1], "command", length) == 0)
2024-05-27 16:40:40 +02:00
&& (length >= 3)) {
2024-05-27 16:13:40 +02:00
int cmdArgc;
char **cmdArgv;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " command window ?value?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->cmdArgv != NULL) {
interp->result = Tcl_Merge(wmPtr->cmdArgc, wmPtr->cmdArgv);
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interp->freeProc = TCL_DYNAMIC;
2024-05-27 16:13:40 +02:00
}
return TCL_OK;
}
if (argv[3][0] == 0) {
if (wmPtr->cmdArgv != NULL) {
ckfree((char *) wmPtr->cmdArgv);
wmPtr->cmdArgv = NULL;
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XDeleteProperty(winPtr->display, winPtr->window,
Tk_InternAtom((Tk_Window) winPtr, "WM_COMMAND"));
}
}
return TCL_OK;
}
if (Tcl_SplitList(interp, argv[3], &cmdArgc, &cmdArgv) != TCL_OK) {
return TCL_ERROR;
}
if (wmPtr->cmdArgv != NULL) {
ckfree((char *) wmPtr->cmdArgv);
}
wmPtr->cmdArgc = cmdArgc;
wmPtr->cmdArgv = cmdArgv;
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XSetCommand(winPtr->display, winPtr->window, cmdArgv, cmdArgc);
}
} else if ((c == 'd') && (strncmp(argv[1], "deiconify", length) == 0)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " deiconify window\"", (char *) NULL);
return TCL_ERROR;
}
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if (wmPtr->iconFor != NULL) {
Tcl_AppendResult(interp, "can't deiconify ", argv[2],
": it is an icon for ", winPtr->pathName, (char *) NULL);
return TCL_ERROR;
}
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wmPtr->hints.initial_state = NormalState;
wmPtr->withdrawn = 0;
if (wmPtr->flags & WM_NEVER_MAPPED) {
return TCL_OK;
}
UpdateHints(winPtr);
Tk_MapWindow((Tk_Window) winPtr);
} else if ((c == 'f') && (strncmp(argv[1], "focusmodel", length) == 0)
&& (length >= 2)) {
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " focusmodel window ?active|passive?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
interp->result = wmPtr->hints.input ? "passive" : "active";
return TCL_OK;
}
c = argv[3][0];
length = strlen(argv[3]);
if ((c == 'a') && (strncmp(argv[3], "active", length) == 0)) {
wmPtr->hints.input = False;
} else if ((c == 'p') && (strncmp(argv[3], "passive", length) == 0)) {
wmPtr->hints.input = True;
} else {
Tcl_AppendResult(interp, "bad argument \"", argv[3],
"\": must be active or passive", (char *) NULL);
return TCL_ERROR;
}
UpdateHints(winPtr);
} else if ((c == 'f') && (strncmp(argv[1], "frame", length) == 0)
&& (length >= 2)) {
Window window;
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " frame window\"", (char *) NULL);
return TCL_ERROR;
}
window = wmPtr->reparent;
if (window == None) {
window = Tk_WindowId((Tk_Window) winPtr);
}
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sprintf(interp->result, "0x%x", (unsigned int) window);
2024-05-27 16:13:40 +02:00
} else if ((c == 'g') && (strncmp(argv[1], "geometry", length) == 0)
&& (length >= 2)) {
char xSign, ySign;
int width, height;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " geometry window ?newGeometry?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
xSign = (wmPtr->flags & WM_NEGATIVE_X) ? '-' : '+';
ySign = (wmPtr->flags & WM_NEGATIVE_Y) ? '-' : '+';
2024-05-27 16:40:40 +02:00
if (wmPtr->gridWin != NULL) {
2024-05-27 16:13:40 +02:00
width = wmPtr->reqGridWidth + (winPtr->changes.width
- winPtr->reqWidth)/wmPtr->widthInc;
height = wmPtr->reqGridHeight + (winPtr->changes.height
- winPtr->reqHeight)/wmPtr->heightInc;
} else {
width = winPtr->changes.width;
height = winPtr->changes.height;
}
sprintf(interp->result, "%dx%d%c%d%c%d", width, height,
xSign, wmPtr->x, ySign, wmPtr->y);
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->width = -1;
wmPtr->height = -1;
goto updateGeom;
}
return ParseGeometry(interp, argv[3], winPtr);
} else if ((c == 'g') && (strncmp(argv[1], "grid", length) == 0)
&& (length >= 3)) {
int reqWidth, reqHeight, widthInc, heightInc;
if ((argc != 3) && (argc != 7)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " grid window ?baseWidth baseHeight ",
"widthInc heightInc?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->sizeHintsFlags & PBaseSize) {
sprintf(interp->result, "%d %d %d %d", wmPtr->reqGridWidth,
wmPtr->reqGridHeight, wmPtr->widthInc,
wmPtr->heightInc);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
/*
* Turn off gridding and reset the width and height
* to make sense as ungridded numbers.
*/
wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
if (wmPtr->width != -1) {
wmPtr->width = winPtr->reqWidth + (wmPtr->width
- wmPtr->reqGridWidth)*wmPtr->widthInc;
wmPtr->height = winPtr->reqHeight + (wmPtr->height
- wmPtr->reqGridHeight)*wmPtr->heightInc;
}
2024-05-27 16:40:40 +02:00
wmPtr->widthInc = 1;
wmPtr->heightInc = 1;
2024-05-27 16:13:40 +02:00
} else {
if ((Tcl_GetInt(interp, argv[3], &reqWidth) != TCL_OK)
|| (Tcl_GetInt(interp, argv[4], &reqHeight) != TCL_OK)
|| (Tcl_GetInt(interp, argv[5], &widthInc) != TCL_OK)
|| (Tcl_GetInt(interp, argv[6], &heightInc) != TCL_OK)) {
return TCL_ERROR;
}
if (reqWidth < 0) {
interp->result = "baseWidth can't be < 0";
return TCL_ERROR;
}
if (reqHeight < 0) {
interp->result = "baseHeight can't be < 0";
return TCL_ERROR;
}
if (widthInc < 0) {
interp->result = "widthInc can't be < 0";
return TCL_ERROR;
}
if (heightInc < 0) {
interp->result = "heightInc can't be < 0";
return TCL_ERROR;
}
Tk_SetGrid((Tk_Window) winPtr, reqWidth, reqHeight, widthInc,
heightInc);
}
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
} else if ((c == 'g') && (strncmp(argv[1], "group", length) == 0)
&& (length >= 3)) {
Tk_Window tkwin2;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " group window ?pathName?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->hints.flags & WindowGroupHint) {
interp->result = wmPtr->leaderName;
}
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->hints.flags &= ~WindowGroupHint;
wmPtr->leaderName = NULL;
} else {
tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
if (tkwin2 == NULL) {
return TCL_ERROR;
}
Tk_MakeWindowExist(tkwin2);
wmPtr->hints.window_group = Tk_WindowId(tkwin2);
wmPtr->hints.flags |= WindowGroupHint;
wmPtr->leaderName = Tk_PathName(tkwin2);
}
UpdateHints(winPtr);
} else if ((c == 'i') && (strncmp(argv[1], "iconbitmap", length) == 0)
&& (length >= 5)) {
Pixmap pixmap;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " iconbitmap window ?bitmap?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->hints.flags & IconPixmapHint) {
interp->result = Tk_NameOfBitmap(winPtr->display,
wmPtr->hints.icon_pixmap);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
if (wmPtr->hints.icon_pixmap != None) {
Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
2024-05-27 16:40:40 +02:00
wmPtr->hints.icon_pixmap = None;
2024-05-27 16:13:40 +02:00
}
wmPtr->hints.flags &= ~IconPixmapHint;
} else {
2024-05-27 16:40:40 +02:00
pixmap = Tk_GetBitmap(interp, (Tk_Window) winPtr,
Tk_GetUid(argv[3]));
2024-05-27 16:13:40 +02:00
if (pixmap == None) {
return TCL_ERROR;
}
wmPtr->hints.icon_pixmap = pixmap;
wmPtr->hints.flags |= IconPixmapHint;
}
UpdateHints(winPtr);
} else if ((c == 'i') && (strncmp(argv[1], "iconify", length) == 0)
&& (length >= 5)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " iconify window\"", (char *) NULL);
return TCL_ERROR;
}
if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
"\": override-redirect flag is set", (char *) NULL);
return TCL_ERROR;
}
if (wmPtr->master != None) {
Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
"\": it is a transient", (char *) NULL);
return TCL_ERROR;
}
2024-05-27 16:40:40 +02:00
if (wmPtr->iconFor != NULL) {
Tcl_AppendResult(interp, "can't iconify ", argv[2],
": it is an icon for ", winPtr->pathName, (char *) NULL);
return TCL_ERROR;
}
2024-05-27 16:13:40 +02:00
wmPtr->hints.initial_state = IconicState;
if (wmPtr->flags & WM_NEVER_MAPPED) {
return TCL_OK;
}
if (wmPtr->withdrawn) {
UpdateHints(winPtr);
Tk_MapWindow((Tk_Window) winPtr);
wmPtr->withdrawn = 0;
} else {
if (XIconifyWindow(winPtr->display, winPtr->window,
winPtr->screenNum) == 0) {
interp->result =
"couldn't send iconify message to window manager";
return TCL_ERROR;
}
WaitForMapNotify(winPtr, 0);
}
} else if ((c == 'i') && (strncmp(argv[1], "iconmask", length) == 0)
&& (length >= 5)) {
Pixmap pixmap;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " iconmask window ?bitmap?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->hints.flags & IconMaskHint) {
interp->result = Tk_NameOfBitmap(winPtr->display,
wmPtr->hints.icon_mask);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
if (wmPtr->hints.icon_mask != None) {
Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
}
wmPtr->hints.flags &= ~IconMaskHint;
} else {
pixmap = Tk_GetBitmap(interp, tkwin, Tk_GetUid(argv[3]));
if (pixmap == None) {
return TCL_ERROR;
}
wmPtr->hints.icon_mask = pixmap;
wmPtr->hints.flags |= IconMaskHint;
}
UpdateHints(winPtr);
} else if ((c == 'i') && (strncmp(argv[1], "iconname", length) == 0)
&& (length >= 5)) {
if (argc > 4) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " iconname window ?newName?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
interp->result = (wmPtr->iconName != NULL) ? wmPtr->iconName : "";
return TCL_OK;
} else {
wmPtr->iconName = Tk_GetUid(argv[3]);
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XSetIconName(winPtr->display, winPtr->window, wmPtr->iconName);
}
}
} else if ((c == 'i') && (strncmp(argv[1], "iconposition", length) == 0)
&& (length >= 5)) {
int x, y;
if ((argc != 3) && (argc != 5)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " iconposition window ?x y?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->hints.flags & IconPositionHint) {
sprintf(interp->result, "%d %d", wmPtr->hints.icon_x,
wmPtr->hints.icon_y);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->hints.flags &= ~IconPositionHint;
} else {
if ((Tcl_GetInt(interp, argv[3], &x) != TCL_OK)
|| (Tcl_GetInt(interp, argv[4], &y) != TCL_OK)){
return TCL_ERROR;
}
wmPtr->hints.icon_x = x;
wmPtr->hints.icon_y = y;
wmPtr->hints.flags |= IconPositionHint;
}
UpdateHints(winPtr);
} else if ((c == 'i') && (strncmp(argv[1], "iconwindow", length) == 0)
&& (length >= 5)) {
Tk_Window tkwin2;
2024-05-27 16:40:40 +02:00
WmInfo *wmPtr2;
XSetWindowAttributes atts;
2024-05-27 16:13:40 +02:00
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " iconwindow window ?pathName?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
2024-05-27 16:40:40 +02:00
if (wmPtr->icon != NULL) {
interp->result = Tk_PathName(wmPtr->icon);
2024-05-27 16:13:40 +02:00
}
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->hints.flags &= ~IconWindowHint;
2024-05-27 16:40:40 +02:00
if (wmPtr->icon != NULL) {
/*
* Remove the icon window relationship. In principle we
* should also re-enable button events for the window, but
* this doesn't work in general because the window manager
* is probably selecting on them (we'll get an error if
* we try to re-enable the events). So, just leave the
* icon window event-challenged; the user will have to
* recreate it if they want button events.
*/
wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
wmPtr2->iconFor = NULL;
wmPtr2->withdrawn = 1;
wmPtr2->hints.initial_state = WithdrawnState;
}
wmPtr->icon = NULL;
2024-05-27 16:13:40 +02:00
} else {
tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
if (tkwin2 == NULL) {
return TCL_ERROR;
}
2024-05-27 16:40:40 +02:00
if (!Tk_IsTopLevel(tkwin2)) {
Tcl_AppendResult(interp, "can't use ", argv[3],
" as icon window: not at top level", (char *) NULL);
return TCL_ERROR;
}
wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr;
if (wmPtr2->iconFor != NULL) {
Tcl_AppendResult(interp, argv[3], " is already an icon for ",
Tk_PathName(wmPtr2->iconFor), (char *) NULL);
return TCL_ERROR;
}
if (wmPtr->icon != NULL) {
WmInfo *wmPtr3 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
wmPtr3->iconFor = NULL;
wmPtr3->withdrawn = 1;
/*
* Let the window use button events again.
*/
atts.event_mask = Tk_Attributes(wmPtr->icon)->event_mask
| ButtonPressMask;
Tk_ChangeWindowAttributes(wmPtr->icon, CWEventMask, &atts);
}
/*
* Disable button events in the icon window: some window
* managers (like olvwm) want to get the events themselves,
* but X only allows one application at a time to receive
* button events for a window.
*/
atts.event_mask = Tk_Attributes(tkwin2)->event_mask
& ~ButtonPressMask;
Tk_ChangeWindowAttributes(tkwin2, CWEventMask, &atts);
2024-05-27 16:13:40 +02:00
Tk_MakeWindowExist(tkwin2);
wmPtr->hints.icon_window = Tk_WindowId(tkwin2);
wmPtr->hints.flags |= IconWindowHint;
2024-05-27 16:40:40 +02:00
wmPtr->icon = tkwin2;
wmPtr2->iconFor = (Tk_Window) winPtr;
if (!wmPtr2->withdrawn && !(wmPtr2->flags & WM_NEVER_MAPPED)) {
wmPtr2->withdrawn = 0;
if (XWithdrawWindow(Tk_Display(tkwin2), Tk_WindowId(tkwin2),
Tk_ScreenNumber(tkwin2)) == 0) {
interp->result =
"couldn't send withdraw message to window manager";
return TCL_ERROR;
}
WaitForMapNotify((TkWindow *) tkwin2, 0);
}
2024-05-27 16:13:40 +02:00
}
UpdateHints(winPtr);
} else if ((c == 'm') && (strncmp(argv[1], "maxsize", length) == 0)
&& (length >= 2)) {
int width, height;
if ((argc != 3) && (argc != 5)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " maxsize window ?width height?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
2024-05-27 16:40:40 +02:00
GetMaxSize(wmPtr, &width, &height);
sprintf(interp->result, "%d %d", width, height);
2024-05-27 16:13:40 +02:00
return TCL_OK;
}
2024-05-27 16:40:40 +02:00
if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
|| (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
return TCL_ERROR;
2024-05-27 16:13:40 +02:00
}
2024-05-27 16:40:40 +02:00
wmPtr->maxWidth = width;
wmPtr->maxHeight = height;
2024-05-27 16:13:40 +02:00
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
} else if ((c == 'm') && (strncmp(argv[1], "minsize", length) == 0)
&& (length >= 2)) {
int width, height;
if ((argc != 3) && (argc != 5)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " minsize window ?width height?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
2024-05-27 16:40:40 +02:00
sprintf(interp->result, "%d %d", wmPtr->minWidth,
wmPtr->minHeight);
2024-05-27 16:13:40 +02:00
return TCL_OK;
}
2024-05-27 16:40:40 +02:00
if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
|| (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
return TCL_ERROR;
2024-05-27 16:13:40 +02:00
}
2024-05-27 16:40:40 +02:00
wmPtr->minWidth = width;
wmPtr->minHeight = height;
2024-05-27 16:13:40 +02:00
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
} else if ((c == 'o')
&& (strncmp(argv[1], "overrideredirect", length) == 0)) {
int boolean;
XSetWindowAttributes atts;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " overrideredirect window ?boolean?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
interp->result = "1";
} else {
interp->result = "0";
}
return TCL_OK;
}
if (Tcl_GetBoolean(interp, argv[3], &boolean) != TCL_OK) {
return TCL_ERROR;
}
atts.override_redirect = (boolean) ? True : False;
Tk_ChangeWindowAttributes((Tk_Window) winPtr, CWOverrideRedirect,
&atts);
} else if ((c == 'p') && (strncmp(argv[1], "positionfrom", length) == 0)
&& (length >= 2)) {
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " positionfrom window ?user/program?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->sizeHintsFlags & USPosition) {
interp->result = "user";
} else if (wmPtr->sizeHintsFlags & PPosition) {
interp->result = "program";
}
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->sizeHintsFlags &= ~(USPosition|PPosition);
} else {
c = argv[3][0];
length = strlen(argv[3]);
if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
wmPtr->sizeHintsFlags &= ~PPosition;
wmPtr->sizeHintsFlags |= USPosition;
} else if ((c == 'p') && (strncmp(argv[3], "program", length) == 0)) {
wmPtr->sizeHintsFlags &= ~USPosition;
wmPtr->sizeHintsFlags |= PPosition;
} else {
Tcl_AppendResult(interp, "bad argument \"", argv[3],
"\": must be program or user", (char *) NULL);
return TCL_ERROR;
}
}
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
} else if ((c == 'p') && (strncmp(argv[1], "protocol", length) == 0)
&& (length >= 2)) {
register ProtocolHandler *protPtr, *prevPtr;
Atom protocol;
int cmdLength;
if ((argc < 3) || (argc > 5)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " protocol window ?name? ?command?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
/*
* Return a list of all defined protocols for the window.
*/
for (protPtr = wmPtr->protPtr; protPtr != NULL;
protPtr = protPtr->nextPtr) {
Tcl_AppendElement(interp,
Tk_GetAtomName((Tk_Window) winPtr, protPtr->protocol));
}
return TCL_OK;
}
protocol = Tk_InternAtom((Tk_Window) winPtr, argv[3]);
if (argc == 4) {
/*
* Return the command to handle a given protocol.
*/
for (protPtr = wmPtr->protPtr; protPtr != NULL;
protPtr = protPtr->nextPtr) {
if (protPtr->protocol == protocol) {
interp->result = protPtr->command;
return TCL_OK;
}
}
return TCL_OK;
}
/*
* Delete any current protocol handler, then create a new
* one with the specified command, unless the command is
* empty.
*/
for (protPtr = wmPtr->protPtr, prevPtr = NULL; protPtr != NULL;
prevPtr = protPtr, protPtr = protPtr->nextPtr) {
if (protPtr->protocol == protocol) {
if (prevPtr == NULL) {
wmPtr->protPtr = protPtr->nextPtr;
} else {
prevPtr->nextPtr = protPtr->nextPtr;
}
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Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
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break;
}
}
cmdLength = strlen(argv[4]);
if (cmdLength > 0) {
protPtr = (ProtocolHandler *) ckalloc(HANDLER_SIZE(cmdLength));
protPtr->protocol = protocol;
protPtr->nextPtr = wmPtr->protPtr;
wmPtr->protPtr = protPtr;
protPtr->interp = interp;
strcpy(protPtr->command, argv[4]);
}
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
UpdateWmProtocols(wmPtr);
}
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} else if ((c == 'r') && (strncmp(argv[1], "resizable", length) == 0)) {
int width, height;
if ((argc != 3) && (argc != 5)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " resizable window ?width height?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
sprintf(interp->result, "%d %d",
(wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) ? 0 : 1,
(wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) ? 0 : 1);
return TCL_OK;
}
if ((Tcl_GetBoolean(interp, argv[3], &width) != TCL_OK)
|| (Tcl_GetBoolean(interp, argv[4], &height) != TCL_OK)) {
return TCL_ERROR;
}
if (width) {
wmPtr->flags &= ~WM_WIDTH_NOT_RESIZABLE;
} else {
wmPtr->flags |= WM_WIDTH_NOT_RESIZABLE;
}
if (height) {
wmPtr->flags &= ~WM_HEIGHT_NOT_RESIZABLE;
} else {
wmPtr->flags |= WM_HEIGHT_NOT_RESIZABLE;
}
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
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} else if ((c == 's') && (strncmp(argv[1], "sizefrom", length) == 0)
&& (length >= 2)) {
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " sizefrom window ?user|program?\"",
(char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->sizeHintsFlags & USSize) {
interp->result = "user";
} else if (wmPtr->sizeHintsFlags & PSize) {
interp->result = "program";
}
return TCL_OK;
}
if (*argv[3] == '\0') {
wmPtr->sizeHintsFlags &= ~(USSize|PSize);
} else {
c = argv[3][0];
length = strlen(argv[3]);
if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
wmPtr->sizeHintsFlags &= ~PSize;
wmPtr->sizeHintsFlags |= USSize;
} else if ((c == 'p')
&& (strncmp(argv[3], "program", length) == 0)) {
wmPtr->sizeHintsFlags &= ~USSize;
wmPtr->sizeHintsFlags |= PSize;
} else {
Tcl_AppendResult(interp, "bad argument \"", argv[3],
"\": must be program or user", (char *) NULL);
return TCL_ERROR;
}
}
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
goto updateGeom;
} else if ((c == 's') && (strncmp(argv[1], "state", length) == 0)
&& (length >= 2)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " state window\"", (char *) NULL);
return TCL_ERROR;
}
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if (wmPtr->iconFor != NULL) {
interp->result = "icon";
} else if (wmPtr->withdrawn) {
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interp->result = "withdrawn";
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} else if (Tk_IsMapped((Tk_Window) winPtr)
|| ((wmPtr->flags & WM_NEVER_MAPPED)
&& (wmPtr->hints.initial_state == NormalState))) {
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interp->result = "normal";
} else {
interp->result = "iconic";
}
} else if ((c == 't') && (strncmp(argv[1], "title", length) == 0)
&& (length >= 2)) {
if (argc > 4) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " title window ?newTitle?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
interp->result = (wmPtr->titleUid != NULL) ? wmPtr->titleUid
: winPtr->nameUid;
return TCL_OK;
} else {
wmPtr->titleUid = Tk_GetUid(argv[3]);
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XTextProperty textProp;
if (XStringListToTextProperty(&wmPtr->titleUid, 1,
&textProp) != 0) {
XSetWMName(winPtr->display, winPtr->window, &textProp);
XFree((char *) textProp.value);
}
}
}
} else if ((c == 't') && (strncmp(argv[1], "transient", length) == 0)
&& (length >= 3)) {
Tk_Window master;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " transient window ?master?\"", (char *) NULL);
return TCL_ERROR;
}
if (argc == 3) {
if (wmPtr->master != None) {
interp->result = wmPtr->masterWindowName;
}
return TCL_OK;
}
if (argv[3][0] == '\0') {
wmPtr->master = None;
wmPtr->masterWindowName = NULL;
} else {
master = Tk_NameToWindow(interp, argv[3], tkwin);
if (master == NULL) {
return TCL_ERROR;
}
Tk_MakeWindowExist(master);
wmPtr->master = Tk_WindowId(master);
wmPtr->masterWindowName = Tk_PathName(master);
}
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
XSetTransientForHint(winPtr->display, winPtr->window,
wmPtr->master);
}
} else if ((c == 'w') && (strncmp(argv[1], "withdraw", length) == 0)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " withdraw window\"", (char *) NULL);
return TCL_ERROR;
}
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if (wmPtr->iconFor != NULL) {
Tcl_AppendResult(interp, "can't withdraw ", argv[2],
": it is an icon for ", Tk_PathName(wmPtr->iconFor),
(char *) NULL);
return TCL_ERROR;
}
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wmPtr->hints.initial_state = WithdrawnState;
wmPtr->withdrawn = 1;
if (wmPtr->flags & WM_NEVER_MAPPED) {
return TCL_OK;
}
if (XWithdrawWindow(winPtr->display, winPtr->window,
winPtr->screenNum) == 0) {
interp->result =
"couldn't send withdraw message to window manager";
return TCL_ERROR;
}
WaitForMapNotify(winPtr, 0);
} else {
Tcl_AppendResult(interp, "unknown or ambiguous option \"", argv[1],
"\": must be aspect, client, command, deiconify, ",
"focusmodel, frame, geometry, grid, group, iconbitmap, ",
"iconify, iconmask, iconname, iconposition, ",
"iconwindow, maxsize, minsize, overrideredirect, ",
2024-05-27 16:40:40 +02:00
"positionfrom, protocol, resizable, sizefrom, state, title, ",
"transient, or withdraw",
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(char *) NULL);
return TCL_ERROR;
}
return TCL_OK;
updateGeom:
if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
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Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
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wmPtr->flags |= WM_UPDATE_PENDING;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* Tk_SetGrid --
*
* This procedure is invoked by a widget when it wishes to set a grid
* coordinate system that controls the size of a top-level window.
* It provides a C interface equivalent to the "wm grid" command and
* is usually asscoiated with the -setgrid option.
*
* Results:
* None.
*
* Side effects:
* Grid-related information will be passed to the window manager, so
* that the top-level window associated with tkwin will resize on
2024-05-27 16:40:40 +02:00
* even grid units. If some other window already controls gridding
* for the top-level window then this procedure call has no effect.
2024-05-27 16:13:40 +02:00
*
*----------------------------------------------------------------------
*/
void
Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc)
Tk_Window tkwin; /* Token for window. New window mgr info
* will be posted for the top-level window
* associated with this window. */
int reqWidth; /* Width (in grid units) corresponding to
* the requested geometry for tkwin. */
int reqHeight; /* Height (in grid units) corresponding to
* the requested geometry for tkwin. */
int widthInc, heightInc; /* Pixel increments corresponding to a
* change of one grid unit. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
register WmInfo *wmPtr;
/*
* Find the top-level window for tkwin, plus the window manager
* information.
*/
while (!(winPtr->flags & TK_TOP_LEVEL)) {
winPtr = winPtr->parentPtr;
2024-05-27 16:40:40 +02:00
if (winPtr == NULL) {
/*
* The window is being deleted... just skip this operation.
*/
return;
}
2024-05-27 16:13:40 +02:00
}
wmPtr = winPtr->wmInfoPtr;
2024-05-27 16:40:40 +02:00
if ((wmPtr->gridWin != NULL) && (wmPtr->gridWin != tkwin)) {
return;
}
2024-05-27 16:13:40 +02:00
if ((wmPtr->reqGridWidth == reqWidth)
&& (wmPtr->reqGridHeight == reqHeight)
&& (wmPtr->widthInc == widthInc)
&& (wmPtr->heightInc == heightInc)
&& ((wmPtr->sizeHintsFlags & (PBaseSize|PResizeInc))
== PBaseSize|PResizeInc)) {
return;
}
/*
* If gridding was previously off, then forget about any window
* size requests made by the user or via "wm geometry": these are
* in pixel units and there's no easy way to translate them to
* grid units since the new requested size of the top-level window in
* pixels may not yet have been registered yet (it may filter up
2024-05-27 16:40:40 +02:00
* the hierarchy in DoWhenIdle handlers). However, if the window
* has never been mapped yet then just leave the window size alone:
* assume that it is intended to be in grid units but just happened
* to have been specified before this procedure was called.
2024-05-27 16:13:40 +02:00
*/
2024-05-27 16:40:40 +02:00
if ((wmPtr->gridWin == NULL) && !(wmPtr->flags & WM_NEVER_MAPPED)) {
2024-05-27 16:13:40 +02:00
wmPtr->width = -1;
wmPtr->height = -1;
}
/*
* Set the new gridding information, and start the process of passing
* all of this information to the window manager.
*/
2024-05-27 16:40:40 +02:00
wmPtr->gridWin = tkwin;
2024-05-27 16:13:40 +02:00
wmPtr->reqGridWidth = reqWidth;
wmPtr->reqGridHeight = reqHeight;
wmPtr->widthInc = widthInc;
wmPtr->heightInc = heightInc;
wmPtr->sizeHintsFlags |= PBaseSize|PResizeInc;
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
2024-05-27 16:40:40 +02:00
Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
wmPtr->flags |= WM_UPDATE_PENDING;
}
}
/*
*----------------------------------------------------------------------
*
* Tk_UnsetGrid --
*
* This procedure cancels the effect of a previous call
* to Tk_SetGrid.
*
* Results:
* None.
*
* Side effects:
* If tkwin currently controls gridding for its top-level window,
* gridding is cancelled for that top-level window; if some other
* window controls gridding then this procedure has no effect.
*
*----------------------------------------------------------------------
*/
void
Tk_UnsetGrid(tkwin)
Tk_Window tkwin; /* Token for window that is currently
* controlling gridding. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
register WmInfo *wmPtr;
/*
* Find the top-level window for tkwin, plus the window manager
* information.
*/
while (!(winPtr->flags & TK_TOP_LEVEL)) {
winPtr = winPtr->parentPtr;
if (winPtr == NULL) {
/*
* The window is being deleted... just skip this operation.
*/
return;
}
}
wmPtr = winPtr->wmInfoPtr;
if (tkwin != wmPtr->gridWin) {
return;
}
wmPtr->gridWin = NULL;
wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
if (wmPtr->width != -1) {
wmPtr->width = winPtr->reqWidth + (wmPtr->width
- wmPtr->reqGridWidth)*wmPtr->widthInc;
wmPtr->height = winPtr->reqHeight + (wmPtr->height
- wmPtr->reqGridHeight)*wmPtr->heightInc;
}
wmPtr->widthInc = 1;
wmPtr->heightInc = 1;
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
2024-05-27 16:13:40 +02:00
wmPtr->flags |= WM_UPDATE_PENDING;
}
}
/*
*----------------------------------------------------------------------
*
* ConfigureEvent --
*
* This procedure is called to handle ConfigureNotify events on
* top-level windows.
*
* Results:
* None.
*
* Side effects:
* Information gets updated in the WmInfo structure for the window.
*
*----------------------------------------------------------------------
*/
static void
ConfigureEvent(winPtr, configEventPtr)
TkWindow *winPtr; /* Top-level window. */
XConfigureEvent *configEventPtr; /* Event that just occurred for
* winPtr. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
/*
* Update size information from the event. There are a couple of
* tricky points here:
*
* 1. If the user changed the size externally then set wmPtr->width
* and wmPtr->height just as if a "wm geometry" command had been
* invoked with the same information.
* 2. However, if the size is changing in response to a request
* coming from us (WM_SYNC_PENDING is set), then don't set wmPtr->width
* or wmPtr->height if they were previously -1 (otherwise the
* window will stop tracking geometry manager requests).
*/
if (((winPtr->changes.width != configEventPtr->width)
|| (winPtr->changes.height != configEventPtr->height))
&& !(wmPtr->flags & WM_SYNC_PENDING)){
if (wmTracing) {
printf("TopLevelEventProc: user changed %s size to %dx%d\n",
winPtr->pathName, configEventPtr->width,
configEventPtr->height);
}
2024-05-27 16:40:40 +02:00
if ((wmPtr->width == -1)
&& (configEventPtr->width == winPtr->reqWidth)) {
/*
* Don't set external width, since the user didn't change it
* from what the widgets asked for.
*/
} else {
if (wmPtr->gridWin != NULL) {
wmPtr->width = wmPtr->reqGridWidth
+ (configEventPtr->width
- winPtr->reqWidth)/wmPtr->widthInc;
if (wmPtr->width < 0) {
wmPtr->width = 0;
}
} else {
wmPtr->width = configEventPtr->width;
2024-05-27 16:13:40 +02:00
}
2024-05-27 16:40:40 +02:00
}
if ((wmPtr->height == -1)
&& (configEventPtr->height == winPtr->reqHeight)) {
/*
* Don't set external height, since the user didn't change it
* from what the widgets asked for.
*/
2024-05-27 16:13:40 +02:00
} else {
2024-05-27 16:40:40 +02:00
if (wmPtr->gridWin != NULL) {
wmPtr->height = wmPtr->reqGridHeight
+ (configEventPtr->height
- winPtr->reqHeight)/wmPtr->heightInc;
if (wmPtr->height < 0) {
wmPtr->height = 0;
}
} else {
wmPtr->height = configEventPtr->height;
}
2024-05-27 16:13:40 +02:00
}
wmPtr->configWidth = configEventPtr->width;
wmPtr->configHeight = configEventPtr->height;
}
if (wmTracing) {
printf("ConfigureEvent: %s x = %d y = %d, width = %d, height = %d",
winPtr->pathName, configEventPtr->x, configEventPtr->y,
configEventPtr->width, configEventPtr->height);
2024-05-27 16:40:40 +02:00
printf(" send_event = %d, serial = %ld\n", configEventPtr->send_event,
2024-05-27 16:13:40 +02:00
configEventPtr->serial);
}
winPtr->changes.width = configEventPtr->width;
winPtr->changes.height = configEventPtr->height;
winPtr->changes.border_width = configEventPtr->border_width;
winPtr->changes.sibling = configEventPtr->above;
winPtr->changes.stack_mode = Above;
/*
* Reparenting window managers make life difficult. If the
* window manager reparents a top-level window then the x and y
* information that comes in events for the window is wrong:
* it gives the location of the window inside its decorative
* parent, rather than the location of the window in root
* coordinates, which is what we want. Window managers
* are supposed to send synthetic events with the correct
* information, but ICCCM doesn't require them to do this
* under all conditions, and the information provided doesn't
* include everything we need here. So, the code below
* maintains a bunch of information about the parent window.
* If the window hasn't been reparented, we pretend that
* there is a parent shrink-wrapped around the window.
*/
if ((wmPtr->reparent == None) || !ComputeReparentGeometry(winPtr)) {
wmPtr->parentWidth = configEventPtr->width
+ 2*configEventPtr->border_width;
wmPtr->parentHeight = configEventPtr->height
+ 2*configEventPtr->border_width;
winPtr->changes.x = wmPtr->x = configEventPtr->x;
winPtr->changes.y = wmPtr->y = configEventPtr->y;
if (wmPtr->flags & WM_NEGATIVE_X) {
wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
}
if (wmPtr->flags & WM_NEGATIVE_Y) {
wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
}
}
}
/*
*----------------------------------------------------------------------
*
* ReparentEvent --
*
* This procedure is called to handle ReparentNotify events on
* top-level windows.
*
* Results:
* None.
*
* Side effects:
* Information gets updated in the WmInfo structure for the window.
*
*----------------------------------------------------------------------
*/
static void
ReparentEvent(winPtr, reparentEventPtr)
TkWindow *winPtr; /* Top-level window. */
XReparentEvent *reparentEventPtr; /* Event that just occurred for
* winPtr. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
Window vRoot, ancestor, *children, dummy2, *virtualRootPtr;
Atom actualType;
int actualFormat;
unsigned long numItems, bytesAfter;
unsigned int dummy;
Tk_ErrorHandler handler;
/*
* Identify the root window for winPtr. This is tricky because of
* virtual root window managers like tvtwm. If the window has a
* property named __SWM_ROOT or __WM_ROOT then this property gives
* the id for a virtual root window that should be used instead of
* the root window of the screen.
*/
vRoot = RootWindow(winPtr->display, winPtr->screenNum);
wmPtr->vRoot = None;
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handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
(Tk_ErrorProc *) NULL, (ClientData) NULL);
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if (((XGetWindowProperty(winPtr->display, winPtr->window,
Tk_InternAtom((Tk_Window) winPtr, "__WM_ROOT"), 0, (long) 1,
False, XA_WINDOW, &actualType, &actualFormat, &numItems,
&bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
&& (actualType == XA_WINDOW))
|| ((XGetWindowProperty(winPtr->display, winPtr->window,
Tk_InternAtom((Tk_Window) winPtr, "__SWM_ROOT"), 0, (long) 1,
False, XA_WINDOW, &actualType, &actualFormat, &numItems,
&bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
&& (actualType == XA_WINDOW))) {
if ((actualFormat == 32) && (numItems == 1)) {
vRoot = wmPtr->vRoot = *virtualRootPtr;
} else if (wmTracing) {
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printf("%s format %d numItems %ld\n",
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"ReparentEvent got bogus VROOT property:", actualFormat,
numItems);
}
XFree((char *) virtualRootPtr);
}
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Tk_DeleteErrorHandler(handler);
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if (wmTracing) {
printf("ReparentEvent: %s reparented to 0x%x, vRoot = 0x%x\n",
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winPtr->pathName, (unsigned int) reparentEventPtr->parent,
(unsigned int) vRoot);
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}
/*
* Fetch correct geometry information for the new virtual root.
*/
UpdateVRootGeometry(wmPtr);
/*
* If the window's new parent is the root window, then mark it as
* no longer reparented.
*/
if (reparentEventPtr->parent == vRoot) {
noReparent:
wmPtr->reparent = None;
wmPtr->parentWidth = winPtr->changes.width
+ 2*winPtr->changes.border_width;
wmPtr->parentHeight = winPtr->changes.height
+ 2*winPtr->changes.border_width;
wmPtr->xInParent = wmPtr->yInParent = 0;
winPtr->changes.x = reparentEventPtr->x;
winPtr->changes.y = reparentEventPtr->y;
return;
}
/*
* Search up the window hierarchy to find the ancestor of this
* window that is just below the (virtual) root. This is tricky
* because it's possible that things have changed since the event
* was generated so that the ancestry indicated by the event no
* longer exists. If this happens then an error will occur and
* we just discard the event (there will be a more up-to-date
* ReparentNotify event coming later).
*/
handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
(Tk_ErrorProc *) NULL, (ClientData) NULL);
wmPtr->reparent = reparentEventPtr->parent;
while (1) {
if (XQueryTree(winPtr->display, wmPtr->reparent, &dummy2, &ancestor,
&children, &dummy) == 0) {
Tk_DeleteErrorHandler(handler);
goto noReparent;
}
XFree((char *) children);
if ((ancestor == vRoot) ||
(ancestor == RootWindow(winPtr->display, winPtr->screenNum))) {
break;
}
wmPtr->reparent = ancestor;
}
Tk_DeleteErrorHandler(handler);
if (!ComputeReparentGeometry(winPtr)) {
goto noReparent;
}
}
/*
*----------------------------------------------------------------------
*
* ComputeReparentGeometry --
*
* This procedure is invoked to recompute geometry information
* related to a reparented top-level window, such as the position
* and total size of the parent and the position within it of
* the top-level window.
*
* Results:
* The return value is 1 if everything completed successfully
* and 0 if an error occurred while querying information about
* winPtr's parents. In this case winPtr is marked as no longer
* being reparented.
*
* Side effects:
* Geometry information in winPtr and winPtr->wmPtr gets updated.
*
*----------------------------------------------------------------------
*/
static int
ComputeReparentGeometry(winPtr)
TkWindow *winPtr; /* Top-level window whose reparent info
* is to be recomputed. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
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int width, height, bd;
unsigned int dummy;
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int xOffset, yOffset, x, y;
Window dummy2;
Status status;
Tk_ErrorHandler handler;
handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
(Tk_ErrorProc *) NULL, (ClientData) NULL);
(void) XTranslateCoordinates(winPtr->display, winPtr->window,
wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2);
status = XGetGeometry(winPtr->display, wmPtr->reparent,
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&dummy2, &x, &y, (unsigned int *) &width,
(unsigned int *) &height, (unsigned int *) &bd, &dummy);
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Tk_DeleteErrorHandler(handler);
if (status == 0) {
/*
* It appears that the reparented parent went away and
* no-one told us. Reset the window to indicate that
* it's not reparented.
*/
wmPtr->reparent = None;
wmPtr->xInParent = wmPtr->yInParent = 0;
return 0;
}
wmPtr->xInParent = xOffset + bd - winPtr->changes.border_width;
wmPtr->yInParent = yOffset + bd - winPtr->changes.border_width;
wmPtr->parentWidth = width + 2*bd;
wmPtr->parentHeight = height + 2*bd;
/*
* Some tricky issues in updating wmPtr->x and wmPtr->y:
*
* 1. Don't update them if the event occurred because of something
* we did (i.e. WM_SYNC_PENDING and WM_MOVE_PENDING are both set).
* This is because window managers treat coords differently than Tk,
* and no two window managers are alike. If the window manager moved
* the window because we told it to, remember the coordinates we told
* it, not the ones it actually moved it to. This allows us to move
* the window back to the same coordinates later and get the same
* result. Without this check, windows can "walk" across the screen
* under some conditions.
*
* 2. Don't update wmPtr->x and wmPtr->y unless winPtr->changes.x
* or winPtr->changes.y has changed (otherwise a size change can
* spoof us into thinking that the position changed too and defeat
* the intent of (1) above.
*
* 3. Ignore size changes coming from the window system if we're
* about to change the size ourselves but haven't seen the event for
* it yet: our size change is supposed to take priority.
*/
if (!(wmPtr->flags & WM_MOVE_PENDING)
&& ((winPtr->changes.x != (x + wmPtr->xInParent))
|| (winPtr->changes.y != (y + wmPtr->yInParent)))) {
wmPtr->x = x;
if (wmPtr->flags & WM_NEGATIVE_X) {
wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
}
wmPtr->y = y;
if (wmPtr->flags & WM_NEGATIVE_Y) {
wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
}
}
winPtr->changes.x = x + wmPtr->xInParent;
winPtr->changes.y = y + wmPtr->yInParent;
if (wmTracing) {
printf("winPtr coords %d,%d, wmPtr coords %d,%d, offsets %d %d\n",
winPtr->changes.x, winPtr->changes.y, wmPtr->x, wmPtr->y,
wmPtr->xInParent, wmPtr->yInParent);
}
return 1;
}
/*
*----------------------------------------------------------------------
*
* TopLevelEventProc --
*
* This procedure is invoked when a top-level (or other externally-
* managed window) is restructured in any way.
*
* Results:
* None.
*
* Side effects:
* Tk's internal data structures for the window get modified to
* reflect the structural change.
*
*----------------------------------------------------------------------
*/
static void
TopLevelEventProc(clientData, eventPtr)
ClientData clientData; /* Window for which event occurred. */
XEvent *eventPtr; /* Event that just happened. */
{
register TkWindow *winPtr = (TkWindow *) clientData;
winPtr->wmInfoPtr->flags |= WM_VROOT_OFFSET_STALE;
if (eventPtr->type == DestroyNotify) {
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Tk_ErrorHandler handler;
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if (!(winPtr->flags & TK_ALREADY_DEAD)) {
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/*
* A top-level window was deleted externally (e.g., by the window
* manager). This is probably not a good thing, but cleanup as
* best we can. The error handler is needed because
* Tk_DestroyWindow will try to destroy the window, but of course
* it's already gone.
*/
handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
(Tk_ErrorProc *) NULL, (ClientData) NULL);
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Tk_DestroyWindow((Tk_Window) winPtr);
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Tk_DeleteErrorHandler(handler);
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}
if (wmTracing) {
printf("TopLevelEventProc: %s deleted\n", winPtr->pathName);
}
} else if (eventPtr->type == ConfigureNotify) {
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/*
* Ignore the event if the window has never been mapped yet.
* Such an event occurs only in weird cases like changing the
* internal border width of a top-level window, which results
* in a synthetic Configure event. These events are not relevant
* to us, and if we process them confusion may result (e.g. we
* may conclude erroneously that the user repositioned or resized
* the window).
*/
if (!(winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED)) {
ConfigureEvent(winPtr, &eventPtr->xconfigure);
}
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} else if (eventPtr->type == MapNotify) {
winPtr->flags |= TK_MAPPED;
if (wmTracing) {
printf("TopLevelEventProc: %s mapped\n", winPtr->pathName);
}
} else if (eventPtr->type == UnmapNotify) {
winPtr->flags &= ~TK_MAPPED;
if (wmTracing) {
printf("TopLevelEventProc: %s unmapped\n", winPtr->pathName);
}
} else if (eventPtr->type == ReparentNotify) {
ReparentEvent(winPtr, &eventPtr->xreparent);
}
}
/*
*----------------------------------------------------------------------
*
* TopLevelReqProc --
*
* This procedure is invoked by the geometry manager whenever
* the requested size for a top-level window is changed.
*
* Results:
* None.
*
* Side effects:
* Arrange for the window to be resized to satisfy the request
* (this happens as a when-idle action).
*
*----------------------------------------------------------------------
*/
/* ARGSUSED */
static void
TopLevelReqProc(dummy, tkwin)
ClientData dummy; /* Not used. */
Tk_Window tkwin; /* Information about window. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
WmInfo *wmPtr;
wmPtr = winPtr->wmInfoPtr;
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
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Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
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wmPtr->flags |= WM_UPDATE_PENDING;
}
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/*
* If the window isn't being positioned by its upper left corner
* then we have to move it as well.
*/
if (wmPtr->flags & (WM_NEGATIVE_X | WM_NEGATIVE_Y)) {
wmPtr->flags |= WM_MOVE_PENDING;
}
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}
/*
*----------------------------------------------------------------------
*
* UpdateGeometryInfo --
*
* This procedure is invoked when a top-level window is first
* mapped, and also as a when-idle procedure, to bring the
* geometry and/or position of a top-level window back into
* line with what has been requested by the user and/or widgets.
* This procedure doesn't return until the window manager has
* responded to the geometry change.
*
* Results:
* None.
*
* Side effects:
* The window's size and location may change, unless the WM prevents
* that from happening.
*
*----------------------------------------------------------------------
*/
static void
UpdateGeometryInfo(clientData)
ClientData clientData; /* Pointer to the window's record. */
{
register TkWindow *winPtr = (TkWindow *) clientData;
register WmInfo *wmPtr = winPtr->wmInfoPtr;
int x, y, width, height;
unsigned long serial;
wmPtr->flags &= ~WM_UPDATE_PENDING;
/*
* Compute the new size for the top-level window. See the
* user documentation for details on this, but the size
* requested depends on (a) the size requested internally
* by the window's widgets, (b) the size requested by the
* user in a "wm geometry" command or via wm-based interactive
* resizing (if any), and (c) whether or not the window is
* gridded. Don't permit sizes <= 0 because this upsets
* the X server.
*/
if (wmPtr->width == -1) {
width = winPtr->reqWidth;
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} else if (wmPtr->gridWin != NULL) {
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width = winPtr->reqWidth
+ (wmPtr->width - wmPtr->reqGridWidth)*wmPtr->widthInc;
} else {
width = wmPtr->width;
}
if (width <= 0) {
width = 1;
}
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if (wmPtr->height == -1) {
height = winPtr->reqHeight;
} else if (wmPtr->gridWin != NULL) {
height = winPtr->reqHeight
+ (wmPtr->height - wmPtr->reqGridHeight)*wmPtr->heightInc;
} else {
height = wmPtr->height;
}
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if (height <= 0) {
height = 1;
}
/*
* Compute the new position for the upper-left pixel of the window's
* decorative frame. This is tricky, because we need to include the
* border widths supplied by a reparented parent in this calculation,
* but can't use the parent's current overall size since that may
* change as a result of this code.
*/
if (wmPtr->flags & WM_NEGATIVE_X) {
x = wmPtr->vRootWidth - wmPtr->x
- (width + (wmPtr->parentWidth - winPtr->changes.width));
} else {
x = wmPtr->x;
}
if (wmPtr->flags & WM_NEGATIVE_Y) {
y = wmPtr->vRootHeight - wmPtr->y
- (height + (wmPtr->parentHeight - winPtr->changes.height));
} else {
y = wmPtr->y;
}
/*
* If the window's size is going to change and the window is
* supposed to not be resizable by the user, then we have to
* update the size hints. There may also be a size-hint-update
* request pending from somewhere else, too.
*/
if (((width != winPtr->changes.width)
|| (height != winPtr->changes.height))
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&& (wmPtr->gridWin == NULL)
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&& ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) {
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
}
if (wmPtr->flags & WM_UPDATE_SIZE_HINTS) {
UpdateSizeHints(winPtr);
}
/*
* Reconfigure the window if it isn't already configured correctly.
* A few tricky points:
*
* 1. Sometimes the window manager will give us a different size
* than we asked for (e.g. mwm has a minimum size for windows), so
* base the size check on what we *asked for* last time, not what we
* got.
* 2. Can't just reconfigure always, because we may not get a
* ConfigureNotify event back if nothing changed, so
* WaitForConfigureNotify will hang a long time.
* 3. Don't move window unless a new position has been requested for
* it. This is because of "features" in some window managers (e.g.
* twm, as of 4/24/91) where they don't interpret coordinates
* according to ICCCM. Moving a window to its current location may
* cause it to shift position on the screen.
*/
serial = NextRequest(winPtr->display);
if (wmPtr->flags & WM_MOVE_PENDING) {
wmPtr->configWidth = width;
wmPtr->configHeight = height;
if (wmTracing) {
printf("UpdateGeometryInfo moving to %d %d, resizing to %d x %d,\n",
x, y, width, height);
}
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Tk_MoveResizeWindow((Tk_Window) winPtr, x, y, width, height);
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} else if ((width != wmPtr->configWidth)
|| (height != wmPtr->configHeight)) {
wmPtr->configWidth = width;
wmPtr->configHeight = height;
if (wmTracing) {
printf("UpdateGeometryInfo resizing to %d x %d\n", width, height);
}
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Tk_ResizeWindow((Tk_Window) winPtr, width, height);
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} else {
return;
}
/*
* Wait for the configure operation to complete. Don't need to do
* this, however, if the window is about to be mapped: it will be
* taken care of elsewhere.
*/
if (!(wmPtr->flags & WM_ABOUT_TO_MAP)) {
WaitForConfigureNotify(winPtr, serial);
}
}
/*
*--------------------------------------------------------------
*
* UpdateSizeHints --
*
* This procedure is called to update the window manager's
* size hints information from the information in a WmInfo
* structure.
*
* Results:
* None.
*
* Side effects:
* Properties get changed for winPtr.
*
*--------------------------------------------------------------
*/
static void
UpdateSizeHints(winPtr)
TkWindow *winPtr;
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
XSizeHints *hintsPtr;
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int maxWidth, maxHeight;
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wmPtr->flags &= ~WM_UPDATE_SIZE_HINTS;
hintsPtr = XAllocSizeHints();
if (hintsPtr == NULL) {
return;
}
/*
* Compute the pixel-based sizes for the various fields in the
* size hints structure, based on the grid-based sizes in
* our structure.
*/
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GetMaxSize(wmPtr, &maxWidth, &maxHeight);
if (wmPtr->gridWin != NULL) {
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hintsPtr->base_width = winPtr->reqWidth
- (wmPtr->reqGridWidth * wmPtr->widthInc);
if (hintsPtr->base_width < 0) {
hintsPtr->base_width = 0;
}
hintsPtr->base_height = winPtr->reqHeight
- (wmPtr->reqGridHeight * wmPtr->heightInc);
if (hintsPtr->base_height < 0) {
hintsPtr->base_height = 0;
}
hintsPtr->min_width = hintsPtr->base_width
+ (wmPtr->minWidth * wmPtr->widthInc);
hintsPtr->min_height = hintsPtr->base_height
+ (wmPtr->minHeight * wmPtr->heightInc);
hintsPtr->max_width = hintsPtr->base_width
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+ (maxWidth * wmPtr->widthInc);
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hintsPtr->max_height = hintsPtr->base_height
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+ (maxHeight * wmPtr->heightInc);
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} else {
hintsPtr->min_width = wmPtr->minWidth;
hintsPtr->min_height = wmPtr->minHeight;
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hintsPtr->max_width = maxWidth;
hintsPtr->max_height = maxHeight;
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hintsPtr->base_width = 0;
hintsPtr->base_height = 0;
}
hintsPtr->width_inc = wmPtr->widthInc;
hintsPtr->height_inc = wmPtr->heightInc;
hintsPtr->min_aspect.x = wmPtr->minAspect.x;
hintsPtr->min_aspect.y = wmPtr->minAspect.y;
hintsPtr->max_aspect.x = wmPtr->maxAspect.x;
hintsPtr->max_aspect.y = wmPtr->maxAspect.y;
hintsPtr->win_gravity = wmPtr->gravity;
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hintsPtr->flags = wmPtr->sizeHintsFlags | PMinSize | PMaxSize;
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/*
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* If the window isn't supposed to be resizable, then set the
* minimum and maximum dimensions to be the same.
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*/
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if (wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) {
if (wmPtr->width >= 0) {
hintsPtr->min_width = wmPtr->width;
} else {
hintsPtr->min_width = winPtr->reqWidth;
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}
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hintsPtr->max_width = hintsPtr->min_width;
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}
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if (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) {
if (wmPtr->height >= 0) {
hintsPtr->min_height = wmPtr->height;
} else {
hintsPtr->min_height = winPtr->reqHeight;
}
hintsPtr->max_height = hintsPtr->min_height;
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}
XSetWMNormalHints(winPtr->display, winPtr->window, hintsPtr);
XFree((char *) hintsPtr);
}
/*
*----------------------------------------------------------------------
*
* WaitForConfigureNotify --
*
* This procedure is invoked in order to synchronize with the
* window manager. It waits for a ConfigureNotify event to
* arrive, signalling that the window manager has seen an attempt
* on our part to move or resize a top-level window.
*
* Results:
* None.
*
* Side effects:
* Delays the execution of the process until a ConfigureNotify event
* arrives with serial number at least as great as serial. This
* is useful for two reasons:
*
* 1. It's important to distinguish ConfigureNotify events that are
* coming in response to a request we've made from those generated
* spontaneously by the user. The reason for this is that if the
* user resizes the window we take that as an order to ignore
* geometry requests coming from inside the window hierarchy. If
* we accidentally interpret a response to our request as a
* user-initiated action, the window will stop responding to
* new geometry requests. To make this distinction, (a) this
* procedure sets a flag for TopLevelEventProc to indicate that
* we're waiting to sync with the wm, and (b) all changes to
* the size of a top-level window are followed by calls to this
* procedure.
* 2. Races and confusion can come about if there are multiple
* operations outstanding at a time (e.g. two different resizes
* of the top-level window: it's hard to tell which of the
* ConfigureNotify events coming back is for which request).
* While waiting, all events covered by StructureNotifyMask are
* processed and all others are deferred.
*
*----------------------------------------------------------------------
*/
static void
WaitForConfigureNotify(winPtr, serial)
TkWindow *winPtr; /* Top-level window for which we want
* to see a ConfigureNotify. */
unsigned long serial; /* Serial number of resize request. Want to
* be sure wm has seen this. */
{
WmInfo *wmPtr = winPtr->wmInfoPtr;
XEvent event;
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int diff, code;
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int gotConfig = 0;
/*
* One more tricky detail about this procedure. In some cases the
* window manager will decide to ignore a configure request (e.g.
* because it thinks the window is already in the right place).
* To avoid hanging in this situation, only wait for a few seconds,
* then give up.
*/
while (!gotConfig) {
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wmPtr->flags |= WM_SYNC_PENDING;
code = WaitForEvent(winPtr->display, winPtr->window, ConfigureNotify,
&event);
wmPtr->flags &= ~WM_SYNC_PENDING;
if (code != TCL_OK) {
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if (wmTracing) {
printf("WaitForConfigureNotify giving up on %s\n",
winPtr->pathName);
}
break;
}
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diff = event.xconfigure.serial - serial;
if (diff >= 0) {
gotConfig = 1;
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}
}
wmPtr->flags &= ~WM_MOVE_PENDING;
if (wmTracing) {
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printf("WaitForConfigureNotify finished with %s, serial %ld\n",
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winPtr->pathName, serial);
}
}
/*
*----------------------------------------------------------------------
*
* WaitForEvent --
*
* This procedure is used by WaitForConfigureNotify and
* WaitForMapNotify to wait for an event of a certain type
* to arrive.
*
* Results:
* Under normal conditions, TCL_OK is returned and an event for
* display and window that matches "mask" is stored in *eventPtr.
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* This event has already been processed by Tk before this procedure
* returns. If a long time goes by with no event of the right type
* arriving, or if an error occurs while waiting for the event to
* arrive, then TCL_ERROR is returned.
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*
* Side effects:
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* While waiting for the desired event to occur, Configurenotify
* events for window are processed, as are all ReparentNotify events,
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*
*----------------------------------------------------------------------
*/
static int
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WaitForEvent(display, window, type, eventPtr)
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Display *display; /* Display event is coming from. */
Window window; /* Window for which event is desired. */
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int type; /* Type of event that is wanted. */
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XEvent *eventPtr; /* Place to store event. */
{
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#define TIMEOUT_MS 2000
WaitRestrictInfo info;
Tk_RestrictProc *oldRestrictProc;
ClientData oldRestrictData;
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/*
* Set up an event filter to select just the events we want, and
* a timer handler, then wait for events until we get the event
* we want or a timeout happens.
*/
info.display = display;
info.window = window;
info.type = type;
info.eventPtr = eventPtr;
info.foundEvent = 0;
info.timeout = 0;
oldRestrictProc = Tk_RestrictEvents(WaitRestrictProc, (ClientData) &info,
&oldRestrictData);
Tcl_CreateModalTimeout(TIMEOUT_MS, WaitTimeoutProc,
(ClientData) &info);
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while (1) {
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Tcl_DoOneEvent(TCL_WINDOW_EVENTS);
if (info.foundEvent) {
break;
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}
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if (info.timeout) {
break;
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}
}
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Tcl_DeleteModalTimeout(WaitTimeoutProc, (ClientData) &info);
(void) Tk_RestrictEvents(oldRestrictProc, oldRestrictData,
&oldRestrictData);
if (info.foundEvent) {
return TCL_OK;
}
return TCL_ERROR;
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}
/*
*----------------------------------------------------------------------
*
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* WaitRestrictProc --
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*
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* This procedure is a Tk_RestrictProc that is used to filter
* events while WaitForEvent is active.
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*
* Results:
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* Returns TK_PROCESS_EVENT if the right event is found. Also
* returns TK_PROCESS_EVENT if any ReparentNotify event is found
* for window or if the event is a ConfigureNotify for window.
* Otherwise returns TK_DEFER_EVENT.
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*
* Side effects:
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* An event may get stored in the area indicated by the caller
* of WaitForEvent.
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*
*----------------------------------------------------------------------
*/
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static Tk_RestrictAction
WaitRestrictProc(clientData, eventPtr)
ClientData clientData; /* Pointer to WaitRestrictInfo structure. */
XEvent *eventPtr; /* Event that is about to be handled. */
{
WaitRestrictInfo *infoPtr = (WaitRestrictInfo *) clientData;
if (eventPtr->type == ReparentNotify) {
return TK_PROCESS_EVENT;
}
if ((eventPtr->xany.window != infoPtr->window)
|| (eventPtr->xany.display != infoPtr->display)) {
return TK_DEFER_EVENT;
}
if (eventPtr->type == infoPtr->type) {
*infoPtr->eventPtr = *eventPtr;
infoPtr->foundEvent = 1;
return TK_PROCESS_EVENT;
}
if (eventPtr->type == ConfigureNotify) {
return TK_PROCESS_EVENT;
}
return TK_DEFER_EVENT;
}
/*
*----------------------------------------------------------------------
*
* WaitTimeoutProc --
*
* This procedure is invoked as a timer handler when too much
* time elapses during a call to WaitForEvent. It sets a flag
* in a structure shared with WaitForEvent so that WaitForEvent
* knows that it should return.
*
* Results:
* None.
*
* Side effects:
* The timeout field gest set in the WaitRestrictInfo structure.
*
*----------------------------------------------------------------------
*/
static void
WaitTimeoutProc(clientData)
ClientData clientData; /* Pointer to WaitRestrictInfo structure. */
{
WaitRestrictInfo *infoPtr = (WaitRestrictInfo *) clientData;
infoPtr->timeout = 1;
}
/*
*----------------------------------------------------------------------
*
* WaitForMapNotify --
*
* This procedure is invoked in order to synchronize with the
* window manager. It waits for the window's mapped state to
* reach the value given by mapped.
*
* Results:
* None.
*
* Side effects:
* Delays the execution of the process until winPtr becomes mapped
* or unmapped, depending on the "mapped" argument. This allows us
* to synchronize with the window manager, and allows us to
* identify changes in window size that come about when the window
* manager first starts managing the window (as opposed to those
* requested interactively by the user later). See the comments
* for WaitForConfigureNotify and WM_SYNC_PENDING. While waiting,
* all events covered by StructureNotifyMask are processed and all
* others are deferred.
*
*----------------------------------------------------------------------
*/
static void
WaitForMapNotify(winPtr, mapped)
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TkWindow *winPtr; /* Top-level window for which we want
* to see a particular mapping state. */
int mapped; /* If non-zero, wait for window to become
* mapped, otherwise wait for it to become
* unmapped. */
{
WmInfo *wmPtr = winPtr->wmInfoPtr;
XEvent event;
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int code;
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while (1) {
if (mapped) {
if (winPtr->flags & TK_MAPPED) {
break;
}
} else if (!(winPtr->flags & TK_MAPPED)) {
break;
}
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wmPtr->flags |= WM_SYNC_PENDING;
code = WaitForEvent(winPtr->display, winPtr->window,
mapped ? MapNotify : UnmapNotify, &event);
wmPtr->flags &= ~WM_SYNC_PENDING;
if (code != TCL_OK) {
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/*
* There are some bizarre situations in which the window
* manager can't respond or chooses not to (e.g. if we've
* got a grab set it can't respond). If this happens then
* just quit.
*/
if (wmTracing) {
printf("WaitForMapNotify giving up on %s\n", winPtr->pathName);
}
break;
}
}
wmPtr->flags &= ~WM_MOVE_PENDING;
if (wmTracing) {
printf("WaitForMapNotify finished with %s\n", winPtr->pathName);
}
}
/*
*--------------------------------------------------------------
*
* UpdateHints --
*
* This procedure is called to update the window manager's
* hints information from the information in a WmInfo
* structure.
*
* Results:
* None.
*
* Side effects:
* Properties get changed for winPtr.
*
*--------------------------------------------------------------
*/
static void
UpdateHints(winPtr)
TkWindow *winPtr;
{
WmInfo *wmPtr = winPtr->wmInfoPtr;
if (wmPtr->flags & WM_NEVER_MAPPED) {
return;
}
XSetWMHints(winPtr->display, winPtr->window, &wmPtr->hints);
}
/*
*--------------------------------------------------------------
*
* ParseGeometry --
*
* This procedure parses a geometry string and updates
* information used to control the geometry of a top-level
* window.
*
* Results:
* A standard Tcl return value, plus an error message in
* interp->result if an error occurs.
*
* Side effects:
* The size and/or location of winPtr may change.
*
*--------------------------------------------------------------
*/
static int
ParseGeometry(interp, string, winPtr)
Tcl_Interp *interp; /* Used for error reporting. */
char *string; /* String containing new geometry. Has the
* standard form "=wxh+x+y". */
TkWindow *winPtr; /* Pointer to top-level window whose
* geometry is to be changed. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
int x, y, width, height, flags;
char *end;
register char *p = string;
/*
* The leading "=" is optional.
*/
if (*p == '=') {
p++;
}
/*
* Parse the width and height, if they are present. Don't
* actually update any of the fields of wmPtr until we've
* successfully parsed the entire geometry string.
*/
width = wmPtr->width;
height = wmPtr->height;
x = wmPtr->x;
y = wmPtr->y;
flags = wmPtr->flags;
if (isdigit(UCHAR(*p))) {
width = strtoul(p, &end, 10);
p = end;
if (*p != 'x') {
goto error;
}
p++;
if (!isdigit(UCHAR(*p))) {
goto error;
}
height = strtoul(p, &end, 10);
p = end;
}
/*
* Parse the X and Y coordinates, if they are present.
*/
if (*p != '\0') {
flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
if (*p == '-') {
flags |= WM_NEGATIVE_X;
} else if (*p != '+') {
goto error;
}
x = strtol(p+1, &end, 10);
p = end;
if (*p == '-') {
flags |= WM_NEGATIVE_Y;
} else if (*p != '+') {
goto error;
}
y = strtol(p+1, &end, 10);
if (*end != '\0') {
goto error;
}
/*
* Assume that the geometry information came from the user,
* unless an explicit source has been specified. Otherwise
* most window managers assume that the size hints were
* program-specified and they ignore them.
*/
if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
wmPtr->sizeHintsFlags |= USPosition;
flags |= WM_UPDATE_SIZE_HINTS;
}
}
/*
* Everything was parsed OK. Update the fields of *wmPtr and
* arrange for the appropriate information to be percolated out
* to the window manager at the next idle moment.
*/
wmPtr->width = width;
wmPtr->height = height;
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wmPtr->x = x;
wmPtr->y = y;
flags |= WM_MOVE_PENDING;
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wmPtr->flags = flags;
if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
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Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
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wmPtr->flags |= WM_UPDATE_PENDING;
}
return TCL_OK;
error:
Tcl_AppendResult(interp, "bad geometry specifier \"",
string, "\"", (char *) NULL);
return TCL_ERROR;
}
/*
*----------------------------------------------------------------------
*
* Tk_GetRootCoords --
*
* Given a token for a window, this procedure traces through the
* window's lineage to find the (virtual) root-window coordinates
* corresponding to point (0,0) in the window.
*
* Results:
* The locations pointed to by xPtr and yPtr are filled in with
* the root coordinates of the (0,0) point in tkwin. If a virtual
* root window is in effect for the window, then the coordinates
* in the virtual root are returned.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
Tk_GetRootCoords(tkwin, xPtr, yPtr)
Tk_Window tkwin; /* Token for window. */
int *xPtr; /* Where to store x-displacement of (0,0). */
int *yPtr; /* Where to store y-displacement of (0,0). */
{
int x, y;
register TkWindow *winPtr = (TkWindow *) tkwin;
/*
* Search back through this window's parents all the way to a
* top-level window, combining the offsets of each window within
* its parent.
*/
x = y = 0;
while (1) {
x += winPtr->changes.x + winPtr->changes.border_width;
y += winPtr->changes.y + winPtr->changes.border_width;
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if ((winPtr->flags & TK_TOP_LEVEL) || (winPtr->parentPtr == NULL)) {
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break;
}
winPtr = winPtr->parentPtr;
}
*xPtr = x;
*yPtr = y;
}
/*
*----------------------------------------------------------------------
*
* Tk_CoordsToWindow --
*
* Given the (virtual) root coordinates of a point, this procedure
* returns the token for the top-most window covering that point,
* if there exists such a window in this application.
*
* Results:
* The return result is either a token for the window corresponding
* to rootX and rootY, or else NULL to indicate that there is no such
* window.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_CoordsToWindow(rootX, rootY, tkwin)
int rootX, rootY; /* Coordinates of point in root window. If
* a virtual-root window manager is in use,
* these coordinates refer to the virtual
* root, not the real root. */
Tk_Window tkwin; /* Token for any window in application;
* used to identify the display. */
{
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Window rootChild, root, vRoot;
int dummy1, dummy2;
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register WmInfo *wmPtr;
register TkWindow *winPtr, *childPtr;
TkWindow *nextPtr; /* Coordinates of highest child found so
* far that contains point. */
int x, y; /* Coordinates in winPtr. */
int tmpx, tmpy, bd;
/*
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* Step 1: find any top-level window for the right screen.
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*/
while (!Tk_IsTopLevel(tkwin)) {
tkwin = Tk_Parent(tkwin);
}
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wmPtr = ((TkWindow *) tkwin)->wmInfoPtr;
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/*
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* Step 2: find the window in the actual root that contains the
* desired point. Special trick: if a virtual root window manager
* is in use, there may be windows in both the true root (e.g.
* pop-up menus) and in the virtual root; have to look in *both*
* places.
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*/
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UpdateVRootGeometry(wmPtr);
root = RootWindowOfScreen(Tk_Screen(tkwin));
if (XTranslateCoordinates(Tk_Display(tkwin), root, root,
rootX + wmPtr->vRootX, rootY + wmPtr->vRootY,
&dummy1, &dummy2, &rootChild) == False) {
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panic("Tk_CoordsToWindow get False return from XTranslateCoordinates");
}
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/*
* Step 3: if the window we've found so far (a child of the root)
* is the virtual root window, then look again to find the child of
* the virtual root.
*/
vRoot = ((TkWindow *) tkwin)->wmInfoPtr->vRoot;
if ((vRoot != None) && (rootChild == vRoot)) {
if (XTranslateCoordinates(Tk_Display(tkwin), vRoot, vRoot, rootX,
rootY, &dummy1, &dummy2, &rootChild) == False) {
panic("Tk_CoordsToWindow get False return from XTranslateCoordinates");
}
}
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for (wmPtr = firstWmPtr; ; wmPtr = wmPtr->nextPtr) {
if (wmPtr == NULL) {
return NULL;
}
if ((wmPtr->reparent == rootChild) || ((wmPtr->reparent == None)
&& (wmPtr->winPtr->window == rootChild))) {
break;
}
}
winPtr = wmPtr->winPtr;
if (winPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr) {
return NULL;
}
/*
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* Step 4: work down through the hierarchy underneath this window.
* At each level, scan through all the children to find the highest
* one in the stacking order that contains the point. Then repeat
* the whole process on that child.
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*/
x = rootX;
y = rootY;
while (1) {
x -= winPtr->changes.x;
y -= winPtr->changes.y;
nextPtr = NULL;
for (childPtr = winPtr->childList; childPtr != NULL;
childPtr = childPtr->nextPtr) {
if (!Tk_IsMapped(childPtr) || (childPtr->flags & TK_TOP_LEVEL)) {
continue;
}
tmpx = x - childPtr->changes.x;
tmpy = y - childPtr->changes.y;
bd = childPtr->changes.border_width;
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if ((tmpx >= -bd) && (tmpy >= -bd)
&& (tmpx < (childPtr->changes.width + bd))
&& (tmpy < (childPtr->changes.height + bd))) {
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nextPtr = childPtr;
}
}
if (nextPtr == NULL) {
break;
}
winPtr = nextPtr;
}
return (Tk_Window) winPtr;
}
/*
*----------------------------------------------------------------------
*
* UpdateVRootGeometry --
*
* This procedure is called to update all the virtual root
* geometry information in wmPtr.
*
* Results:
* None.
*
* Side effects:
* The vRootX, vRootY, vRootWidth, and vRootHeight fields in
* wmPtr are filled with the most up-to-date information.
*
*----------------------------------------------------------------------
*/
static void
UpdateVRootGeometry(wmPtr)
WmInfo *wmPtr; /* Window manager information to be
* updated. The wmPtr->vRoot field must
* be valid. */
{
TkWindow *winPtr = wmPtr->winPtr;
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int bd;
unsigned int dummy;
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Window dummy2;
Status status;
Tk_ErrorHandler handler;
/*
* If this isn't a virtual-root window manager, just return information
* about the screen.
*/
wmPtr->flags &= ~WM_VROOT_OFFSET_STALE;
if (wmPtr->vRoot == None) {
noVRoot:
wmPtr->vRootX = wmPtr->vRootY = 0;
wmPtr->vRootWidth = DisplayWidth(winPtr->display, winPtr->screenNum);
wmPtr->vRootHeight = DisplayHeight(winPtr->display, winPtr->screenNum);
return;
}
/*
* Refresh the virtual root information if it's out of date.
*/
handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
(Tk_ErrorProc *) NULL, (ClientData) NULL);
status = XGetGeometry(winPtr->display, wmPtr->vRoot,
&dummy2, &wmPtr->vRootX, &wmPtr->vRootY,
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(unsigned int *) &wmPtr->vRootWidth,
(unsigned int *) &wmPtr->vRootHeight, (unsigned int *) &bd,
&dummy);
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if (wmTracing) {
printf("UpdateVRootGeometry: x = %d, y = %d, width = %d, ",
wmPtr->vRootX, wmPtr->vRootY, wmPtr->vRootWidth);
printf("height = %d, status = %d\n", wmPtr->vRootHeight, status);
}
Tk_DeleteErrorHandler(handler);
if (status == 0) {
/*
* The virtual root is gone! Pretend that it never existed.
*/
wmPtr->vRoot = None;
goto noVRoot;
}
}
/*
*----------------------------------------------------------------------
*
* Tk_GetVRootGeometry --
*
* This procedure returns information about the virtual root
* window corresponding to a particular Tk window.
*
* Results:
* The values at xPtr, yPtr, widthPtr, and heightPtr are set
* with the offset and dimensions of the root window corresponding
* to tkwin. If tkwin is being managed by a virtual root window
* manager these values correspond to the virtual root window being
* used for tkwin; otherwise the offsets will be 0 and the
* dimensions will be those of the screen.
*
* Side effects:
* Vroot window information is refreshed if it is out of date.
*
*----------------------------------------------------------------------
*/
void
Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
Tk_Window tkwin; /* Window whose virtual root is to be
* queried. */
int *xPtr, *yPtr; /* Store x and y offsets of virtual root
* here. */
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int *widthPtr, *heightPtr; /* Store dimensions of virtual root here. */
2024-05-27 16:13:40 +02:00
{
WmInfo *wmPtr;
TkWindow *winPtr = (TkWindow *) tkwin;
/*
* Find the top-level window for tkwin, and locate the window manager
* information for that window.
*/
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while (!(winPtr->flags & TK_TOP_LEVEL) && (winPtr->parentPtr != NULL)) {
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winPtr = winPtr->parentPtr;
}
wmPtr = winPtr->wmInfoPtr;
/*
* Make sure that the geometry information is up-to-date, then copy
* it out to the caller.
*/
if (wmPtr->flags & WM_VROOT_OFFSET_STALE) {
UpdateVRootGeometry(wmPtr);
}
*xPtr = wmPtr->vRootX;
*yPtr = wmPtr->vRootY;
*widthPtr = wmPtr->vRootWidth;
*heightPtr = wmPtr->vRootHeight;
}
/*
*----------------------------------------------------------------------
*
* Tk_MoveToplevelWindow --
*
* This procedure is called instead of Tk_MoveWindow to adjust
* the x-y location of a top-level window. It delays the actual
* move to a later time and keeps window-manager information
* up-to-date with the move
*
* Results:
* None.
*
* Side effects:
* The window is eventually moved so that its upper-left corner
* (actually, the upper-left corner of the window's decorative
* frame, if there is one) is at (x,y).
*
*----------------------------------------------------------------------
*/
void
Tk_MoveToplevelWindow(tkwin, x, y)
Tk_Window tkwin; /* Window to move. */
int x, y; /* New location for window (within
* parent). */
{
TkWindow *winPtr = (TkWindow *) tkwin;
register WmInfo *wmPtr = winPtr->wmInfoPtr;
if (!(winPtr->flags & TK_TOP_LEVEL)) {
panic("Tk_MoveToplevelWindow called with non-toplevel window");
}
wmPtr->x = x;
wmPtr->y = y;
wmPtr->flags |= WM_MOVE_PENDING;
wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
wmPtr->sizeHintsFlags |= USPosition;
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
}
/*
* If the window has already been mapped, must bring its geometry
* up-to-date immediately, otherwise an event might arrive from the
* server that would overwrite wmPtr->x and wmPtr->y and lose the
* new position.
*/
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
if (wmPtr->flags & WM_UPDATE_PENDING) {
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Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
2024-05-27 16:13:40 +02:00
}
UpdateGeometryInfo((ClientData) winPtr);
}
}
/*
*----------------------------------------------------------------------
*
* UpdateWmProtocols --
*
* This procedure transfers the most up-to-date information about
* window manager protocols from the WmInfo structure to the actual
* property on the top-level window.
*
* Results:
* None.
*
* Side effects:
* The WM_PROTOCOLS property gets changed for wmPtr's window.
*
*----------------------------------------------------------------------
*/
static void
UpdateWmProtocols(wmPtr)
register WmInfo *wmPtr; /* Information about top-level window. */
{
register ProtocolHandler *protPtr;
Atom deleteWindowAtom;
int count;
Atom *arrayPtr, *atomPtr;
/*
* There are only two tricky parts here. First, there could be any
* number of atoms for the window, so count them and malloc an array
* to hold all of their atoms. Second, we *always* want to respond
* to the WM_DELETE_WINDOW protocol, even if no-one's officially asked.
*/
for (protPtr = wmPtr->protPtr, count = 1; protPtr != NULL;
protPtr = protPtr->nextPtr, count++) {
/* Empty loop body; we're just counting the handlers. */
}
arrayPtr = (Atom *) ckalloc((unsigned) (count * sizeof(Atom)));
deleteWindowAtom = Tk_InternAtom((Tk_Window) wmPtr->winPtr,
"WM_DELETE_WINDOW");
arrayPtr[0] = deleteWindowAtom;
for (protPtr = wmPtr->protPtr, atomPtr = &arrayPtr[1];
protPtr != NULL; protPtr = protPtr->nextPtr) {
if (protPtr->protocol != deleteWindowAtom) {
*atomPtr = protPtr->protocol;
atomPtr++;
}
}
XChangeProperty(wmPtr->winPtr->display, wmPtr->winPtr->window,
Tk_InternAtom((Tk_Window) wmPtr->winPtr, "WM_PROTOCOLS"),
XA_ATOM, 32, PropModeReplace, (unsigned char *) arrayPtr,
atomPtr-arrayPtr);
ckfree((char *) arrayPtr);
}
/*
*----------------------------------------------------------------------
*
* TkWmProtocolEventProc --
*
* This procedure is called by the Tk_HandleEvent whenever a
* ClientMessage event arrives whose type is "WM_PROTOCOLS".
* This procedure handles the message from the window manager
* in an appropriate fashion.
*
* Results:
* None.
*
* Side effects:
* Depends on what sort of handler, if any, was set up for the
* protocol.
*
*----------------------------------------------------------------------
*/
void
TkWmProtocolEventProc(winPtr, eventPtr)
TkWindow *winPtr; /* Window to which the event was sent. */
XEvent *eventPtr; /* X event. */
{
WmInfo *wmPtr;
register ProtocolHandler *protPtr;
Atom protocol;
int result;
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char *protocolName;
Tcl_Interp *interp;
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wmPtr = winPtr->wmInfoPtr;
if (wmPtr == NULL) {
return;
}
protocol = (Atom) eventPtr->xclient.data.l[0];
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/*
* Note: it's very important to retrieve the protocol name now,
* before invoking the command, even though the name won't be used
* until after the command returns. This is because the command
* could delete winPtr, making it impossible for us to use it
* later in the call to Tk_GetAtomName.
*/
protocolName = Tk_GetAtomName((Tk_Window) winPtr, protocol);
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for (protPtr = wmPtr->protPtr; protPtr != NULL;
protPtr = protPtr->nextPtr) {
if (protocol == protPtr->protocol) {
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Tcl_Preserve((ClientData) protPtr);
interp = protPtr->interp;
Tcl_Preserve((ClientData) interp);
result = Tcl_GlobalEval(interp, protPtr->command);
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if (result != TCL_OK) {
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Tcl_AddErrorInfo(interp, "\n (command for \"");
Tcl_AddErrorInfo(interp, protocolName);
Tcl_AddErrorInfo(interp,
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"\" window manager protocol)");
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Tcl_BackgroundError(interp);
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}
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Tcl_Release((ClientData) interp);
Tcl_Release((ClientData) protPtr);
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return;
}
}
/*
* No handler was present for this protocol. If this is a
* WM_DELETE_WINDOW message then just destroy the window.
*/
if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
Tk_DestroyWindow((Tk_Window) winPtr);
}
}
/*
*----------------------------------------------------------------------
*
* TkWmRestackToplevel --
*
* This procedure restacks a top-level window.
*
* Results:
* None.
*
* Side effects:
* WinPtr gets restacked as specified by aboveBelow and otherPtr.
* This procedure doesn't return until the restack has taken
* effect and the ConfigureNotify event for it has been received.
*
*----------------------------------------------------------------------
*/
void
TkWmRestackToplevel(winPtr, aboveBelow, otherPtr)
TkWindow *winPtr; /* Window to restack. */
int aboveBelow; /* Gives relative position for restacking;
* must be Above or Below. */
TkWindow *otherPtr; /* Window relative to which to restack;
* if NULL, then winPtr gets restacked
* above or below *all* siblings. */
{
XWindowChanges changes;
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XWindowAttributes atts;
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unsigned int mask;
Window window, dummy1, dummy2, vRoot;
Window *children;
unsigned int numChildren;
int i;
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int desiredIndex = 0; /* Initialized to stop gcc warnings. */
int ourIndex = 0; /* Initialized to stop gcc warnings. */
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unsigned long serial;
XEvent event;
int diff;
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Tk_ErrorHandler handler;
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changes.stack_mode = aboveBelow;
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changes.sibling = None;
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mask = CWStackMode;
if (winPtr->window == None) {
Tk_MakeWindowExist((Tk_Window) winPtr);
}
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if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
/*
* Can't set stacking order properly until the window is on the
* screen (mapping it may give it a reparent window), so make sure
* it's on the screen.
*/
TkWmMapWindow(winPtr);
}
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window = (winPtr->wmInfoPtr->reparent != None)
? winPtr->wmInfoPtr->reparent : winPtr->window;
if (otherPtr != NULL) {
if (otherPtr->window == None) {
Tk_MakeWindowExist((Tk_Window) otherPtr);
}
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if (otherPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
TkWmMapWindow(otherPtr);
}
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changes.sibling = (otherPtr->wmInfoPtr->reparent != None)
? otherPtr->wmInfoPtr->reparent : otherPtr->window;
mask = CWStackMode|CWSibling;
}
/*
* Before actually reconfiguring the window, see if it's already
* in the right place. If so then don't reconfigure it. The
* reason for this extra work is that some window managers will
* ignore the reconfigure request if the window is already in
* the right place, causing a long delay in WaitForConfigureNotify
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* while it times out. Special note: if the window is almost in
* the right place, and the only windows between it and the right
* place aren't mapped, then we don't reconfigure it either, for
* the same reason.
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*/
vRoot = winPtr->wmInfoPtr->vRoot;
if (vRoot == None) {
vRoot = RootWindowOfScreen(Tk_Screen((Tk_Window) winPtr));
}
if (XQueryTree(winPtr->display, vRoot, &dummy1, &dummy2,
&children, &numChildren) != 0) {
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/*
* Find where our window is in the stacking order, and
* compute the desired location in the stacking order.
*/
for (i = 0; i < numChildren; i++) {
if (children[i] == window) {
ourIndex = i;
}
if (children[i] == changes.sibling) {
desiredIndex = i;
}
}
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if (mask & CWSibling) {
if (aboveBelow == Above) {
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if (desiredIndex < ourIndex) {
desiredIndex += 1;
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}
} else {
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if (desiredIndex > ourIndex) {
desiredIndex -= 1;
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}
}
} else {
if (aboveBelow == Above) {
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desiredIndex = numChildren-1;
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} else {
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desiredIndex = 0;
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}
}
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/*
* See if there are any mapped windows between where we are
* and where we want to be.
*/
handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
(Tk_ErrorProc *) NULL, (ClientData) NULL);
while (desiredIndex != ourIndex) {
if ((XGetWindowAttributes(winPtr->display, children[desiredIndex],
&atts) != 0) && (atts.map_state != IsUnmapped)) {
break;
}
if (desiredIndex < ourIndex) {
desiredIndex++;
} else {
desiredIndex--;
}
}
Tk_DeleteErrorHandler(handler);
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XFree((char *) children);
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if (ourIndex == desiredIndex) {
return;
}
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}
/*
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* Reconfigure the window. This tricky because of two things:
* (a) Some window managers, like olvwm, insist that we raise
* or lower the toplevel window itself, as opposed to its
* decorative frame. Attempts to raise or lower the frame
* are ignored.
* (b) If the raise or lower is relative to a sibling, X will
* generate an error unless we work with the frames (the
* toplevels themselves aren't siblings).
* Fortunately, the procedure XReconfigureWMWindow is supposed
* to handle all of this stuff, so be careful to use it instead
* of XConfigureWindow.
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*/
serial = NextRequest(winPtr->display);
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if (window != winPtr->window) {
XSelectInput(winPtr->display, window, StructureNotifyMask);
}
XReconfigureWMWindow(winPtr->display, winPtr->window,
Tk_ScreenNumber((Tk_Window) winPtr), mask, &changes);
/*
* Wait for the reconfiguration to complete. If we don't wait, then
* the window may not restack for a while and the application might
* observe it before it has restacked. Waiting for the reconfiguration
* is tricky if winPtr has been reparented, since the window getting
* the event isn't one that Tk owns.
*/
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if (window == winPtr->window) {
WaitForConfigureNotify(winPtr, serial);
} else {
while (1) {
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if (WaitForEvent(winPtr->display, window, ConfigureNotify,
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&event) != TCL_OK) {
break;
}
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diff = event.xconfigure.serial - serial;
if (diff >= 0) {
break;
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}
}
XSelectInput(winPtr->display, window, (long) 0);
}
}
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/*
*----------------------------------------------------------------------
*
* TkWmAddToColormapWindows --
*
* This procedure is called to add a given window to the
* WM_COLORMAP_WINDOWS property for its top-level, if it
* isn't already there. It is invoked by the Tk code that
* creates a new colormap, in order to make sure that colormap
* information is propagated to the window manager by default.
*
* Results:
* None.
*
* Side effects:
* WinPtr's window gets added to the WM_COLORMAP_WINDOWS
* property of its nearest top-level ancestor, unless the
* colormaps have been set explicitly with the
* "wm colormapwindows" command.
*
*----------------------------------------------------------------------
*/
void
TkWmAddToColormapWindows(winPtr)
TkWindow *winPtr; /* Window with a non-default colormap.
* Should not be a top-level window. */
{
TkWindow *topPtr;
Window *oldPtr, *newPtr;
int count, i;
if (winPtr->window == None) {
return;
}
for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
if (topPtr == NULL) {
/*
* Window is being deleted. Skip the whole operation.
*/
return;
}
if (topPtr->flags & TK_TOP_LEVEL) {
break;
}
}
if (topPtr->wmInfoPtr->flags & WM_COLORMAPS_EXPLICIT) {
return;
}
/*
* Fetch the old value of the property.
*/
if (XGetWMColormapWindows(topPtr->display, topPtr->window,
&oldPtr, &count) == 0) {
oldPtr = NULL;
count = 0;
}
/*
* Make sure that the window isn't already in the list.
*/
for (i = 0; i < count; i++) {
if (oldPtr[i] == winPtr->window) {
return;
}
}
/*
* Make a new bigger array and use it to reset the property.
* Automatically add the toplevel itself as the last element
* of the list.
*/
newPtr = (Window *) ckalloc((unsigned) ((count+2)*sizeof(Window)));
for (i = 0; i < count; i++) {
newPtr[i] = oldPtr[i];
}
if (count == 0) {
count++;
}
newPtr[count-1] = winPtr->window;
newPtr[count] = topPtr->window;
XSetWMColormapWindows(topPtr->display, topPtr->window, newPtr, count+1);
ckfree((char *) newPtr);
if (oldPtr != NULL) {
XFree((char *) oldPtr);
}
}
/*
*----------------------------------------------------------------------
*
* TkWmRemoveFromColormapWindows --
*
* This procedure is called to remove a given window from the
* WM_COLORMAP_WINDOWS property for its top-level. It is invoked
* when windows are deleted.
*
* Results:
* None.
*
* Side effects:
* WinPtr's window gets removed from the WM_COLORMAP_WINDOWS
* property of its nearest top-level ancestor, unless the
* top-level itself is being deleted too.
*
*----------------------------------------------------------------------
*/
void
TkWmRemoveFromColormapWindows(winPtr)
TkWindow *winPtr; /* Window that may be present in
* WM_COLORMAP_WINDOWS property for its
* top-level. Should not be a top-level
* window. */
{
TkWindow *topPtr;
Window *oldPtr;
int count, i, j;
for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
if (topPtr == NULL) {
/*
* Ancestors have been deleted, so skip the whole operation.
* Seems like this can't ever happen?
*/
return;
}
if (topPtr->flags & TK_TOP_LEVEL) {
break;
}
}
if (topPtr->flags & TK_ALREADY_DEAD) {
/*
* Top-level is being deleted, so there's no need to cleanup
* the WM_COLORMAP_WINDOWS property.
*/
return;
}
/*
* Fetch the old value of the property.
*/
if (XGetWMColormapWindows(topPtr->display, topPtr->window,
&oldPtr, &count) == 0) {
return;
}
/*
* Find the window and slide the following ones down to cover
* it up.
*/
for (i = 0; i < count; i++) {
if (oldPtr[i] == winPtr->window) {
for (j = i ; j < count-1; j++) {
oldPtr[j] = oldPtr[j+1];
}
XSetWMColormapWindows(topPtr->display, topPtr->window,
oldPtr, count-1);
break;
}
}
XFree((char *) oldPtr);
}
/*
*----------------------------------------------------------------------
*
* TkGetPointerCoords --
*
* Fetch the position of the mouse pointer.
*
* Results:
* *xPtr and *yPtr are filled in with the (virtual) root coordinates
* of the mouse pointer for tkwin's display. If the pointer isn't
* on tkwin's screen, then -1 values are returned for both
* coordinates. The argument tkwin must be a toplevel window.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkGetPointerCoords(tkwin, xPtr, yPtr)
Tk_Window tkwin; /* Toplevel window that identifies screen
* on which lookup is to be done. */
int *xPtr, *yPtr; /* Store pointer coordinates here. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
WmInfo *wmPtr;
Window w, root, child;
int rootX, rootY;
unsigned int mask;
wmPtr = winPtr->wmInfoPtr;
w = wmPtr->vRoot;
if (w == None) {
w = RootWindow(winPtr->display, winPtr->screenNum);
}
if (XQueryPointer(winPtr->display, w, &root, &child, &rootX, &rootY,
xPtr, yPtr, &mask) != True) {
*xPtr = -1;
*yPtr = -1;
}
}
/*
*----------------------------------------------------------------------
*
* TkMakeWindow --
*
* Create an actual window system window object based on the
* current attributes of the specified TkWindow.
*
* Results:
* Returns the handle to the new window, or None on failure.
*
* Side effects:
* Creates a new X window.
*
*----------------------------------------------------------------------
*/
Window
TkMakeWindow(winPtr, parent)
TkWindow *winPtr;
Window parent;
{
return XCreateWindow(winPtr->display, parent, winPtr->changes.x,
winPtr->changes.y, (unsigned) winPtr->changes.width,
(unsigned) winPtr->changes.height,
(unsigned) winPtr->changes.border_width, winPtr->depth,
InputOutput, winPtr->visual, winPtr->dirtyAtts,
&winPtr->atts);
}
/*
*----------------------------------------------------------------------
*
* GetMaxSize --
*
* This procedure computes the current maxWidth and maxHeight
* values for a window, taking into account the possibility
* that they may be defaulted.
*
* Results:
* The values at *maxWidthPtr and *maxHeightPtr are filled
* in with the maximum allowable dimensions of wmPtr's window,
* in grid units. If no maximum has been specified for the
* window, then this procedure computes the largest sizes that
* will fit on the screen.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static void
GetMaxSize(wmPtr, maxWidthPtr, maxHeightPtr)
WmInfo *wmPtr; /* Window manager information for the
* window. */
int *maxWidthPtr; /* Where to store the current maximum
* width of the window. */
int *maxHeightPtr; /* Where to store the current maximum
* height of the window. */
{
int tmp;
if (wmPtr->maxWidth > 0) {
*maxWidthPtr = wmPtr->maxWidth;
} else {
/*
* Must compute a default width. Fill up the display, leaving a
* bit of extra space for the window manager's borders.
*/
tmp = DisplayWidth(wmPtr->winPtr->display, wmPtr->winPtr->screenNum)
- 15;
if (wmPtr->gridWin != NULL) {
/*
* Gridding is turned on; convert from pixels to grid units.
*/
tmp = wmPtr->reqGridWidth
+ (tmp - wmPtr->winPtr->reqWidth)/wmPtr->widthInc;
}
*maxWidthPtr = tmp;
}
if (wmPtr->maxHeight > 0) {
*maxHeightPtr = wmPtr->maxHeight;
} else {
tmp = DisplayHeight(wmPtr->winPtr->display, wmPtr->winPtr->screenNum)
- 30;
if (wmPtr->gridWin != NULL) {
tmp = wmPtr->reqGridHeight
+ (tmp - wmPtr->winPtr->reqHeight)/wmPtr->heightInc;
}
*maxHeightPtr = tmp;
}
}