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archie/tk4.2/generic/tkWindow.c
Mario Fetka b2af3b41bd Update tcl/tk for tcl-dp
2024-05-27 16:40:40 +02:00

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/*
* tkWindow.c --
*
* This file provides basic window-manipulation procedures,
* which are equivalent to procedures in Xlib (and even
* invoke them) but also maintain the local Tk_Window
* structure.
*
* Copyright (c) 1989-1994 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: @(#) tkWindow.c 1.214 96/10/12 17:14:54
*/
#include "tkPort.h"
#include "tkInt.h"
#include "tkPatch.h"
/*
* Count of number of main windows currently open in this process.
*/
static int numMainWindows;
/*
* First in list of all main windows managed by this process.
*/
TkMainInfo *tkMainWindowList = NULL;
/*
* List of all displays currently in use.
*/
TkDisplay *tkDisplayList = NULL;
/*
* Have statics in this module been initialized?
*/
static int initialized = 0;
/*
* The variables below hold several uid's that are used in many places
* in the toolkit.
*/
Tk_Uid tkDisabledUid = NULL;
Tk_Uid tkActiveUid = NULL;
Tk_Uid tkNormalUid = NULL;
/*
* Default values for "changes" and "atts" fields of TkWindows. Note
* that Tk always requests all events for all windows, except StructureNotify
* events on internal windows: these events are generated internally.
*/
static XWindowChanges defChanges = {
0, 0, 1, 1, 0, 0, Above
};
#define ALL_EVENTS_MASK \
KeyPressMask|KeyReleaseMask|ButtonPressMask|ButtonReleaseMask| \
EnterWindowMask|LeaveWindowMask|PointerMotionMask|ExposureMask| \
VisibilityChangeMask|FocusChangeMask|PropertyChangeMask|ColormapChangeMask
static XSetWindowAttributes defAtts= {
None, /* background_pixmap */
0, /* background_pixel */
CopyFromParent, /* border_pixmap */
0, /* border_pixel */
NorthWestGravity, /* bit_gravity */
NorthWestGravity, /* win_gravity */
NotUseful, /* backing_store */
(unsigned) ~0, /* backing_planes */
0, /* backing_pixel */
False, /* save_under */
ALL_EVENTS_MASK, /* event_mask */
0, /* do_not_propagate_mask */
False, /* override_redirect */
CopyFromParent, /* colormap */
None /* cursor */
};
/*
* The following structure defines all of the commands supported by
* Tk, and the C procedures that execute them.
*/
typedef struct {
char *name; /* Name of command. */
int (*cmdProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp,
int argc, char **argv));
/* Command procedure. */
} TkCmd;
static TkCmd commands[] = {
/*
* Commands that are part of the intrinsics:
*/
{"bell", Tk_BellCmd},
{"bind", Tk_BindCmd},
{"bindtags", Tk_BindtagsCmd},
{"clipboard", Tk_ClipboardCmd},
{"destroy", Tk_DestroyCmd},
{"event", Tk_EventCmd},
{"focus", Tk_FocusCmd},
{"grab", Tk_GrabCmd},
{"grid", Tk_GridCmd},
{"image", Tk_ImageCmd},
{"lower", Tk_LowerCmd},
{"option", Tk_OptionCmd},
{"pack", Tk_PackCmd},
{"place", Tk_PlaceCmd},
{"raise", Tk_RaiseCmd},
{"selection", Tk_SelectionCmd},
{"tk", Tk_TkCmd},
{"tkwait", Tk_TkwaitCmd},
{"tk_chooseColor", Tk_ChooseColorCmd},
{"tk_getOpenFile", Tk_GetOpenFileCmd},
{"tk_getSaveFile", Tk_GetSaveFileCmd},
{"tk_messageBox", Tk_MessageBoxCmd},
{"update", Tk_UpdateCmd},
{"winfo", Tk_WinfoCmd},
{"wm", Tk_WmCmd},
/*
* Widget class commands.
*/
{"button", Tk_ButtonCmd},
{"canvas", Tk_CanvasCmd},
{"checkbutton", Tk_CheckbuttonCmd},
{"entry", Tk_EntryCmd},
{"frame", Tk_FrameCmd},
{"label", Tk_LabelCmd},
{"listbox", Tk_ListboxCmd},
{"menu", Tk_MenuCmd},
{"menubutton", Tk_MenubuttonCmd},
{"message", Tk_MessageCmd},
{"radiobutton", Tk_RadiobuttonCmd},
{"scale", Tk_ScaleCmd},
{"scrollbar", Tk_ScrollbarCmd},
{"text", Tk_TextCmd},
{"toplevel", Tk_ToplevelCmd},
/*
* Native widget class commands.
*/
#ifdef MAC_TCL
{"macscrollbar", Tk_MacScrollbarCmd},
{"unsupported1", TkUnsupported1Cmd},
#endif
{(char *) NULL, (int (*) _ANSI_ARGS_((ClientData, Tcl_Interp *, int, char **))) NULL}
};
/*
* The variables and table below are used to parse arguments from
* the "argv" variable in Tk_Init.
*/
static int synchronize;
static char *name;
static char *display;
static char *geometry;
static char *colormap;
static char *visual;
static int rest = 0;
static Tk_ArgvInfo argTable[] = {
{"-colormap", TK_ARGV_STRING, (char *) NULL, (char *) &colormap,
"Colormap for main window"},
{"-display", TK_ARGV_STRING, (char *) NULL, (char *) &display,
"Display to use"},
{"-geometry", TK_ARGV_STRING, (char *) NULL, (char *) &geometry,
"Initial geometry for window"},
{"-name", TK_ARGV_STRING, (char *) NULL, (char *) &name,
"Name to use for application"},
{"-sync", TK_ARGV_CONSTANT, (char *) 1, (char *) &synchronize,
"Use synchronous mode for display server"},
{"-visual", TK_ARGV_STRING, (char *) NULL, (char *) &visual,
"Visual for main window"},
{"--", TK_ARGV_REST, (char *) 1, (char *) &rest,
"Pass all remaining arguments through to script"},
{(char *) NULL, TK_ARGV_END, (char *) NULL, (char *) NULL,
(char *) NULL}
};
/*
* Forward declarations to procedures defined later in this file:
*/
static TkWindow * AllocWindow _ANSI_ARGS_((TkDisplay *dispPtr,
int screenNum, TkWindow *parentPtr));
static Tk_Window CreateTopLevelWindow _ANSI_ARGS_((Tcl_Interp *interp,
Tk_Window parent, char *name, char *screenName));
static void DeleteWindowsExitProc _ANSI_ARGS_((
ClientData clientData));
static void DoConfigureNotify _ANSI_ARGS_((TkWindow *winPtr));
static TkDisplay * GetScreen _ANSI_ARGS_((Tcl_Interp *interp,
char *screenName, int *screenPtr));
static int NameWindow _ANSI_ARGS_((Tcl_Interp *interp,
TkWindow *winPtr, TkWindow *parentPtr,
char *name));
static void OpenIM _ANSI_ARGS_((TkDisplay *dispPtr));
static void UnlinkWindow _ANSI_ARGS_((TkWindow *winPtr));
/*
*----------------------------------------------------------------------
*
* CreateTopLevelWindow --
*
* Make a new window that will be at top-level (its parent will
* be the root window of a screen).
*
* Results:
* The return value is a token for the new window, or NULL if
* an error prevented the new window from being created. If
* NULL is returned, an error message will be left in
* interp->result.
*
* Side effects:
* A new window structure is allocated locally. An X
* window is NOT initially created, but will be created
* the first time the window is mapped.
*
*----------------------------------------------------------------------
*/
static Tk_Window
CreateTopLevelWindow(interp, parent, name, screenName)
Tcl_Interp *interp; /* Interpreter to use for error reporting. */
Tk_Window parent; /* Token for logical parent of new window
* (used for naming, options, etc.). May
* be NULL. */
char *name; /* Name for new window; if parent is
* non-NULL, must be unique among parent's
* children. */
char *screenName; /* Name of screen on which to create
* window. NULL means use DISPLAY environment
* variable to determine. Empty string means
* use parent's screen, or DISPLAY if no
* parent. */
{
register TkWindow *winPtr;
register TkDisplay *dispPtr;
int screenId;
if (!initialized) {
initialized = 1;
tkActiveUid = Tk_GetUid("active");
tkDisabledUid = Tk_GetUid("disabled");
tkNormalUid = Tk_GetUid("normal");
/*
* Create built-in image types.
*/
Tk_CreateImageType(&tkBitmapImageType);
Tk_CreateImageType(&tkPhotoImageType);
/*
* Create built-in photo image formats.
*/
Tk_CreatePhotoImageFormat(&tkImgFmtGIF);
Tk_CreatePhotoImageFormat(&tkImgFmtPPM);
/*
* Create exit handler to delete all windows when the application
* exits.
*/
Tcl_CreateExitHandler(DeleteWindowsExitProc, (ClientData) NULL);
}
if ((parent != NULL) && (screenName != NULL) && (screenName[0] == '\0')) {
dispPtr = ((TkWindow *) parent)->dispPtr;
screenId = Tk_ScreenNumber(parent);
} else {
dispPtr = GetScreen(interp, screenName, &screenId);
if (dispPtr == NULL) {
return (Tk_Window) NULL;
}
}
winPtr = AllocWindow(dispPtr, screenId, (TkWindow *) parent);
/*
* Force the window to use a the border pixel instead of border
* pixmap. This is needed for the case where the window doesn't
* use the default visual. In this case, the default border is
* a pixmap inherited from the root window, which won't work because
* it will have the wrong visual.
*/
winPtr->dirtyAtts |= CWBorderPixel;
/*
* Internal windows don't normally ask for StructureNotify events,
* since we can generate them internally. However, for top-level
* windows we need to ask for the events because the window could
* be manipulated externally.
*/
winPtr->atts.event_mask |= StructureNotifyMask;
/*
* (Need to set the TK_TOP_LEVEL flag immediately here; otherwise
* Tk_DestroyWindow will core dump if it is called before the flag
* has been set.)
*/
winPtr->flags |= TK_TOP_LEVEL;
if (parent != NULL) {
if (NameWindow(interp, winPtr, (TkWindow *) parent, name) != TCL_OK) {
Tk_DestroyWindow((Tk_Window) winPtr);
return (Tk_Window) NULL;
}
}
TkWmNewWindow(winPtr);
return (Tk_Window) winPtr;
}
/*
*----------------------------------------------------------------------
*
* GetScreen --
*
* Given a string name for a display-plus-screen, find the
* TkDisplay structure for the display and return the screen
* number too.
*
* Results:
* The return value is a pointer to information about the display,
* or NULL if the display couldn't be opened. In this case, an
* error message is left in interp->result. The location at
* *screenPtr is overwritten with the screen number parsed from
* screenName.
*
* Side effects:
* A new connection is opened to the display if there is no
* connection already. A new TkDisplay data structure is also
* setup, if necessary.
*
*----------------------------------------------------------------------
*/
static TkDisplay *
GetScreen(interp, screenName, screenPtr)
Tcl_Interp *interp; /* Place to leave error message. */
char *screenName; /* Name for screen. NULL or empty means
* use DISPLAY envariable. */
int *screenPtr; /* Where to store screen number. */
{
register TkDisplay *dispPtr;
char *p;
int screenId;
size_t length;
/*
* Separate the screen number from the rest of the display
* name. ScreenName is assumed to have the syntax
* <display>.<screen> with the dot and the screen being
* optional.
*/
screenName = TkGetDefaultScreenName(interp, screenName);
if (screenName == NULL) {
interp->result =
"no display name and no $DISPLAY environment variable";
return (TkDisplay *) NULL;
}
length = strlen(screenName);
screenId = 0;
p = screenName+length-1;
while (isdigit(UCHAR(*p)) && (p != screenName)) {
p--;
}
if ((*p == '.') && (p[1] != '\0')) {
length = p - screenName;
screenId = strtoul(p+1, (char **) NULL, 10);
}
/*
* See if we already have a connection to this display. If not,
* then open a new connection.
*/
for (dispPtr = tkDisplayList; ; dispPtr = dispPtr->nextPtr) {
if (dispPtr == NULL) {
Display *display;
display = XOpenDisplay(screenName);
if (display == NULL) {
Tcl_AppendResult(interp, "couldn't connect to display \"",
screenName, "\"", (char *) NULL);
return (TkDisplay *) NULL;
}
dispPtr = (TkDisplay *) ckalloc(sizeof(TkDisplay));
dispPtr->display = display;
dispPtr->nextPtr = tkDisplayList;
dispPtr->name = (char *) ckalloc((unsigned) (length+1));
dispPtr->lastEventTime = CurrentTime;
strncpy(dispPtr->name, screenName, length);
dispPtr->name[length] = '\0';
dispPtr->bindInfoStale = 1;
dispPtr->numModKeyCodes = 0;
dispPtr->modKeyCodes = NULL;
OpenIM(dispPtr);
dispPtr->errorPtr = NULL;
dispPtr->deleteCount = 0;
dispPtr->commTkwin = NULL;
dispPtr->selectionInfoPtr = NULL;
dispPtr->multipleAtom = None;
dispPtr->clipWindow = NULL;
dispPtr->clipboardActive = 0;
dispPtr->clipboardAppPtr = NULL;
dispPtr->atomInit = 0;
dispPtr->cursorFont = None;
dispPtr->grabWinPtr = NULL;
dispPtr->eventualGrabWinPtr = NULL;
dispPtr->buttonWinPtr = NULL;
dispPtr->serverWinPtr = NULL;
dispPtr->firstGrabEventPtr = NULL;
dispPtr->lastGrabEventPtr = NULL;
dispPtr->grabFlags = 0;
TkInitXId(dispPtr);
dispPtr->destroyCount = 0;
dispPtr->lastDestroyRequest = 0;
dispPtr->cmapPtr = NULL;
dispPtr->focusWinPtr = NULL;
dispPtr->implicitWinPtr = NULL;
dispPtr->focusOnMapPtr = NULL;
dispPtr->forceFocus = 0;
dispPtr->stressPtr = NULL;
dispPtr->delayedMotionPtr = NULL;
Tcl_InitHashTable(&dispPtr->winTable, TCL_ONE_WORD_KEYS);
tkDisplayList = dispPtr;
break;
}
if ((strncmp(dispPtr->name, screenName, length) == 0)
&& (dispPtr->name[length] == '\0')) {
break;
}
}
if (screenId >= ScreenCount(dispPtr->display)) {
sprintf(interp->result, "bad screen number \"%d\"", screenId);
return (TkDisplay *) NULL;
}
*screenPtr = screenId;
return dispPtr;
}
/*
*----------------------------------------------------------------------
*
* TkGetDisplay --
*
* Given an X display, TkGetDisplay returns the TkDisplay
* structure for the display.
*
* Results:
* The return value is a pointer to information about the display,
* or NULL if the display did not have a TkDisplay structure.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
TkDisplay *
TkGetDisplay(display)
Display *display; /* X's display pointer */
{
TkDisplay *dispPtr;
for (dispPtr = tkDisplayList; dispPtr != NULL;
dispPtr = dispPtr->nextPtr) {
if (dispPtr->display == display) {
break;
}
}
return dispPtr;
}
/*
*--------------------------------------------------------------
*
* AllocWindow --
*
* This procedure creates and initializes a TkWindow structure.
*
* Results:
* The return value is a pointer to the new window.
*
* Side effects:
* A new window structure is allocated and all its fields are
* initialized.
*
*--------------------------------------------------------------
*/
static TkWindow *
AllocWindow(dispPtr, screenNum, parentPtr)
TkDisplay *dispPtr; /* Display associated with new window. */
int screenNum; /* Index of screen for new window. */
TkWindow *parentPtr; /* Parent from which this window should
* inherit visual information. NULL means
* use screen defaults instead of
* inheriting. */
{
register TkWindow *winPtr;
winPtr = (TkWindow *) ckalloc(sizeof(TkWindow));
winPtr->display = dispPtr->display;
winPtr->dispPtr = dispPtr;
winPtr->screenNum = screenNum;
if ((parentPtr != NULL) && (parentPtr->display == winPtr->display)
&& (parentPtr->screenNum == winPtr->screenNum)) {
winPtr->visual = parentPtr->visual;
winPtr->depth = parentPtr->depth;
} else {
winPtr->visual = DefaultVisual(dispPtr->display, screenNum);
winPtr->depth = DefaultDepth(dispPtr->display, screenNum);
}
winPtr->window = None;
winPtr->childList = NULL;
winPtr->lastChildPtr = NULL;
winPtr->parentPtr = NULL;
winPtr->nextPtr = NULL;
winPtr->mainPtr = NULL;
winPtr->pathName = NULL;
winPtr->nameUid = NULL;
winPtr->classUid = NULL;
winPtr->changes = defChanges;
winPtr->dirtyChanges = CWX|CWY|CWWidth|CWHeight|CWBorderWidth;
winPtr->atts = defAtts;
if ((parentPtr != NULL) && (parentPtr->display == winPtr->display)
&& (parentPtr->screenNum == winPtr->screenNum)) {
winPtr->atts.colormap = parentPtr->atts.colormap;
} else {
winPtr->atts.colormap = DefaultColormap(dispPtr->display, screenNum);
}
winPtr->dirtyAtts = CWEventMask|CWColormap|CWBitGravity;
winPtr->flags = 0;
winPtr->handlerList = NULL;
#ifdef TK_USE_INPUT_METHODS
winPtr->inputContext = NULL;
#endif /* TK_USE_INPUT_METHODS */
winPtr->tagPtr = NULL;
winPtr->numTags = 0;
winPtr->optionLevel = -1;
winPtr->selHandlerList = NULL;
winPtr->geomMgrPtr = NULL;
winPtr->geomData = NULL;
winPtr->reqWidth = winPtr->reqHeight = 1;
winPtr->internalBorderWidth = 0;
winPtr->wmInfoPtr = NULL;
winPtr->privatePtr = NULL;
return winPtr;
}
/*
*----------------------------------------------------------------------
*
* NameWindow --
*
* This procedure is invoked to give a window a name and insert
* the window into the hierarchy associated with a particular
* application.
*
* Results:
* A standard Tcl return value.
*
* Side effects:
* See above.
*
*----------------------------------------------------------------------
*/
static int
NameWindow(interp, winPtr, parentPtr, name)
Tcl_Interp *interp; /* Interpreter to use for error reporting. */
register TkWindow *winPtr; /* Window that is to be named and inserted. */
TkWindow *parentPtr; /* Pointer to logical parent for winPtr
* (used for naming, options, etc.). */
char *name; /* Name for winPtr; must be unique among
* parentPtr's children. */
{
#define FIXED_SIZE 200
char staticSpace[FIXED_SIZE];
char *pathName;
int new;
Tcl_HashEntry *hPtr;
int length1, length2;
/*
* Setup all the stuff except name right away, then do the name stuff
* last. This is so that if the name stuff fails, everything else
* will be properly initialized (needed to destroy the window cleanly
* after the naming failure).
*/
winPtr->parentPtr = parentPtr;
winPtr->nextPtr = NULL;
if (parentPtr->childList == NULL) {
parentPtr->childList = winPtr;
} else {
parentPtr->lastChildPtr->nextPtr = winPtr;
}
parentPtr->lastChildPtr = winPtr;
winPtr->mainPtr = parentPtr->mainPtr;
winPtr->mainPtr->refCount++;
winPtr->nameUid = Tk_GetUid(name);
/*
* Don't permit names that start with an upper-case letter: this
* will just cause confusion with class names in the option database.
*/
if (isupper(UCHAR(name[0]))) {
Tcl_AppendResult(interp,
"window name starts with an upper-case letter: \"",
name, "\"", (char *) NULL);
return TCL_ERROR;
}
/*
* To permit names of arbitrary length, must be prepared to malloc
* a buffer to hold the new path name. To run fast in the common
* case where names are short, use a fixed-size buffer on the
* stack.
*/
length1 = strlen(parentPtr->pathName);
length2 = strlen(name);
if ((length1+length2+2) <= FIXED_SIZE) {
pathName = staticSpace;
} else {
pathName = (char *) ckalloc((unsigned) (length1+length2+2));
}
if (length1 == 1) {
pathName[0] = '.';
strcpy(pathName+1, name);
} else {
strcpy(pathName, parentPtr->pathName);
pathName[length1] = '.';
strcpy(pathName+length1+1, name);
}
hPtr = Tcl_CreateHashEntry(&parentPtr->mainPtr->nameTable, pathName, &new);
if (pathName != staticSpace) {
ckfree(pathName);
}
if (!new) {
Tcl_AppendResult(interp, "window name \"", name,
"\" already exists in parent", (char *) NULL);
return TCL_ERROR;
}
Tcl_SetHashValue(hPtr, winPtr);
winPtr->pathName = Tcl_GetHashKey(&parentPtr->mainPtr->nameTable, hPtr);
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkCreateMainWindow --
*
* Make a new main window. A main window is a special kind of
* top-level window used as the outermost window in an
* application.
*
* Results:
* The return value is a token for the new window, or NULL if
* an error prevented the new window from being created. If
* NULL is returned, an error message will be left in
* interp->result.
*
* Side effects:
* A new window structure is allocated locally; "interp" is
* associated with the window and registered for "send" commands
* under "baseName". BaseName may be extended with an instance
* number in the form "#2" if necessary to make it globally
* unique. Tk-related commands are bound into interp.
*
*----------------------------------------------------------------------
*/
Tk_Window
TkCreateMainWindow(interp, screenName, baseName)
Tcl_Interp *interp; /* Interpreter to use for error reporting. */
char *screenName; /* Name of screen on which to create
* window. Empty or NULL string means
* use DISPLAY environment variable. */
char *baseName; /* Base name for application; usually of the
* form "prog instance". */
{
Tk_Window tkwin;
int dummy;
Tcl_HashEntry *hPtr;
register TkMainInfo *mainPtr;
register TkWindow *winPtr;
register TkCmd *cmdPtr;
/*
* Panic if someone updated the TkWindow structure without
* also updating the Tk_FakeWin structure (or vice versa).
*/
if (sizeof(TkWindow) != sizeof(Tk_FakeWin)) {
panic("TkWindow and Tk_FakeWin are not the same size");
}
/*
* Create the basic TkWindow structure.
*/
tkwin = CreateTopLevelWindow(interp, (Tk_Window) NULL, baseName,
screenName);
if (tkwin == NULL) {
return NULL;
}
/*
* Create the TkMainInfo structure for this application, and set
* up name-related information for the new window.
*/
winPtr = (TkWindow *) tkwin;
mainPtr = (TkMainInfo *) ckalloc(sizeof(TkMainInfo));
mainPtr->winPtr = winPtr;
mainPtr->refCount = 1;
mainPtr->interp = interp;
Tcl_InitHashTable(&mainPtr->nameTable, TCL_STRING_KEYS);
TkBindInit(mainPtr);
mainPtr->focusPtr = NULL;
mainPtr->focusSerial = 0;
mainPtr->lastFocusPtr = NULL;
mainPtr->optionRootPtr = NULL;
Tcl_InitHashTable(&mainPtr->imageTable, TCL_STRING_KEYS);
mainPtr->strictMotif = 0;
if (Tcl_LinkVar(interp, "tk_strictMotif", (char *) &mainPtr->strictMotif,
TCL_LINK_BOOLEAN) != TCL_OK) {
Tcl_ResetResult(interp);
}
mainPtr->nextPtr = tkMainWindowList;
tkMainWindowList = mainPtr;
winPtr->mainPtr = mainPtr;
hPtr = Tcl_CreateHashEntry(&mainPtr->nameTable, ".", &dummy);
Tcl_SetHashValue(hPtr, winPtr);
winPtr->pathName = Tcl_GetHashKey(&mainPtr->nameTable, hPtr);
/*
* Register the interpreter for "send" purposes.
*/
winPtr->nameUid = Tk_GetUid(Tk_SetAppName(tkwin, baseName));
/*
* Bind in Tk's commands.
*/
for (cmdPtr = commands; cmdPtr->name != NULL; cmdPtr++) {
Tcl_CreateCommand(interp, cmdPtr->name, cmdPtr->cmdProc,
(ClientData) tkwin,
(void (*) _ANSI_ARGS_((ClientData))) NULL);
}
/*
* Set variables for the intepreter.
*/
Tcl_SetVar(interp, "tk_patchLevel", TK_PATCH_LEVEL, TCL_GLOBAL_ONLY);
Tcl_SetVar(interp, "tk_version", TK_VERSION, TCL_GLOBAL_ONLY);
numMainWindows++;
return tkwin;
}
/*
*--------------------------------------------------------------
*
* Tk_CreateWindow --
*
* Create a new internal or top-level window as a child of an
* existing window.
*
* Results:
* The return value is a token for the new window. This
* is not the same as X's token for the window. If an error
* occurred in creating the window (e.g. no such display or
* screen), then an error message is left in interp->result and
* NULL is returned.
*
* Side effects:
* A new window structure is allocated locally. An X
* window is not initially created, but will be created
* the first time the window is mapped.
*
*--------------------------------------------------------------
*/
Tk_Window
Tk_CreateWindow(interp, parent, name, screenName)
Tcl_Interp *interp; /* Interpreter to use for error reporting.
* Interp->result is assumed to be
* initialized by the caller. */
Tk_Window parent; /* Token for parent of new window. */
char *name; /* Name for new window. Must be unique
* among parent's children. */
char *screenName; /* If NULL, new window will be internal on
* same screen as its parent. If non-NULL,
* gives name of screen on which to create
* new window; window will be a top-level
* window. */
{
TkWindow *parentPtr = (TkWindow *) parent;
TkWindow *winPtr;
if ((parentPtr != NULL) && (parentPtr->flags & TK_ALREADY_DEAD)) {
Tcl_AppendResult(interp,
"can't create window: parent has been destroyed",
(char *) NULL);
return NULL;
}
if (screenName == NULL) {
winPtr = AllocWindow(parentPtr->dispPtr, parentPtr->screenNum,
parentPtr);
if (NameWindow(interp, winPtr, parentPtr, name) != TCL_OK) {
Tk_DestroyWindow((Tk_Window) winPtr);
return NULL;
} else {
return (Tk_Window) winPtr;
}
} else {
return CreateTopLevelWindow(interp, parent, name, screenName);
}
}
/*
*----------------------------------------------------------------------
*
* Tk_CreateWindowFromPath --
*
* This procedure is similar to Tk_CreateWindow except that
* it uses a path name to create the window, rather than a
* parent and a child name.
*
* Results:
* The return value is a token for the new window. This
* is not the same as X's token for the window. If an error
* occurred in creating the window (e.g. no such display or
* screen), then an error message is left in interp->result and
* NULL is returned.
*
* Side effects:
* A new window structure is allocated locally. An X
* window is not initially created, but will be created
* the first time the window is mapped.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_CreateWindowFromPath(interp, tkwin, pathName, screenName)
Tcl_Interp *interp; /* Interpreter to use for error reporting.
* Interp->result is assumed to be
* initialized by the caller. */
Tk_Window tkwin; /* Token for any window in application
* that is to contain new window. */
char *pathName; /* Path name for new window within the
* application of tkwin. The parent of
* this window must already exist, but
* the window itself must not exist. */
char *screenName; /* If NULL, new window will be on same
* screen as its parent. If non-NULL,
* gives name of screen on which to create
* new window; window will be a top-level
* window. */
{
#define FIXED_SPACE 5
char fixedSpace[FIXED_SPACE+1];
char *p;
Tk_Window parent;
int numChars;
/*
* Strip the parent's name out of pathName (it's everything up
* to the last dot). There are two tricky parts: (a) must
* copy the parent's name somewhere else to avoid modifying
* the pathName string (for large names, space for the copy
* will have to be malloc'ed); (b) must special-case the
* situation where the parent is ".".
*/
p = strrchr(pathName, '.');
if (p == NULL) {
Tcl_AppendResult(interp, "bad window path name \"", pathName,
"\"", (char *) NULL);
return NULL;
}
numChars = p-pathName;
if (numChars > FIXED_SPACE) {
p = (char *) ckalloc((unsigned) (numChars+1));
} else {
p = fixedSpace;
}
if (numChars == 0) {
*p = '.';
p[1] = '\0';
} else {
strncpy(p, pathName, (size_t) numChars);
p[numChars] = '\0';
}
/*
* Find the parent window.
*/
parent = Tk_NameToWindow(interp, p, tkwin);
if (p != fixedSpace) {
ckfree(p);
}
if (parent == NULL) {
return NULL;
}
if (((TkWindow *) parent)->flags & TK_ALREADY_DEAD) {
Tcl_AppendResult(interp,
"can't create window: parent has been destroyed", (char *) NULL);
return NULL;
}
/*
* Create the window.
*/
if (screenName == NULL) {
TkWindow *parentPtr = (TkWindow *) parent;
TkWindow *winPtr;
winPtr = AllocWindow(parentPtr->dispPtr, parentPtr->screenNum,
parentPtr);
if (NameWindow(interp, winPtr, parentPtr, pathName+numChars+1)
!= TCL_OK) {
Tk_DestroyWindow((Tk_Window) winPtr);
return NULL;
} else {
return (Tk_Window) winPtr;
}
} else {
return CreateTopLevelWindow(interp, parent, pathName+numChars+1,
screenName);
}
}
/*
*--------------------------------------------------------------
*
* Tk_DestroyWindow --
*
* Destroy an existing window. After this call, the caller
* should never again use the token.
*
* Results:
* None.
*
* Side effects:
* The window is deleted, along with all of its children.
* Relevant callback procedures are invoked.
*
*--------------------------------------------------------------
*/
void
Tk_DestroyWindow(tkwin)
Tk_Window tkwin; /* Window to destroy. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
TkDisplay *dispPtr = winPtr->dispPtr;
XEvent event;
if (winPtr->flags & TK_ALREADY_DEAD) {
/*
* A destroy event binding caused the window to be destroyed
* again. Ignore the request.
*/
return;
}
winPtr->flags |= TK_ALREADY_DEAD;
/*
* Some cleanup needs to be done immediately, rather than later,
* because it needs information that will be destoyed before we
* get to the main cleanup point. For example, TkFocusDeadWindow
* needs to access the parentPtr field from a window, but if
* a Destroy event handler deletes the window's parent this
* field will be NULL before the main cleanup point is reached.
*/
TkFocusDeadWindow(winPtr);
/*
* If this is a main window, remove it from the list of main
* windows. This needs to be done now (rather than later with
* all the other main window cleanup) to handle situations where
* a destroy binding for a window calls "exit". In this case
* the child window cleanup isn't complete when exit is called,
* so the reference count of its application doesn't go to zero
* when exit calls Tk_DestroyWindow on ".", so the main window
* doesn't get removed from the list and exit loops infinitely.
* Even worse, if "destroy ." is called by the destroy binding
* before calling "exit", "exit" will attempt to destroy
* mainPtr->winPtr, which no longer exists, and there may be a
* core dump.
*/
if (winPtr->mainPtr->winPtr == winPtr) {
if (tkMainWindowList == winPtr->mainPtr) {
tkMainWindowList = winPtr->mainPtr->nextPtr;
} else {
TkMainInfo *prevPtr;
for (prevPtr = tkMainWindowList;
prevPtr->nextPtr != winPtr->mainPtr;
prevPtr = prevPtr->nextPtr) {
/* Empty loop body. */
}
prevPtr->nextPtr = winPtr->mainPtr->nextPtr;
}
numMainWindows--;
}
/*
* Recursively destroy children.
*/
dispPtr->destroyCount++;
while (winPtr->childList != NULL) {
TkWindow *childPtr;
childPtr = winPtr->childList;
childPtr->flags |= TK_PARENT_DESTROYED;
Tk_DestroyWindow((Tk_Window) childPtr);
if (winPtr->childList == childPtr) {
/*
* The child didn't remove itself from the child list, so
* let's remove it here. This can happen in some strange
* conditions, such as when a Delete event handler for a
* window deletes the window's parent.
*/
winPtr->childList = childPtr->nextPtr;
childPtr->parentPtr = NULL;
}
}
/*
* Generate a DestroyNotify event. In order for the DestroyNotify
* event to be processed correctly, need to make sure the window
* exists. This is a bit of a kludge, and may be unnecessarily
* expensive, but without it no event handlers will get called for
* windows that don't exist yet.
*
* Note: if the window's pathName is NULL it means that the window
* was not successfully initialized in the first place, so we should
* not make the window exist or generate the event.
*/
if (winPtr->pathName != NULL) {
if (winPtr->window == None) {
Tk_MakeWindowExist(tkwin);
}
event.type = DestroyNotify;
event.xdestroywindow.serial =
LastKnownRequestProcessed(winPtr->display);
event.xdestroywindow.send_event = False;
event.xdestroywindow.display = winPtr->display;
event.xdestroywindow.event = winPtr->window;
event.xdestroywindow.window = winPtr->window;
Tk_HandleEvent(&event);
}
/*
* Cleanup the data structures associated with this window.
*/
if (winPtr->flags & TK_TOP_LEVEL) {
TkWmDeadWindow(winPtr);
} else if (winPtr->flags & TK_WM_COLORMAP_WINDOW) {
TkWmRemoveFromColormapWindows(winPtr);
}
if (winPtr->window != None) {
#if defined(MAC_TCL) || defined(__WIN32__)
XDestroyWindow(winPtr->display, winPtr->window);
#else
if ((winPtr->flags & TK_TOP_LEVEL)
|| !(winPtr->flags & TK_PARENT_DESTROYED)) {
/*
* The parent has already been destroyed and this isn't
* a top-level window, so this window will be destroyed
* implicitly when the parent's X window is destroyed;
* it's much faster not to do an explicit destroy of this
* X window.
*/
dispPtr->lastDestroyRequest = NextRequest(winPtr->display);
XDestroyWindow(winPtr->display, winPtr->window);
}
#endif
TkFreeWindowId(dispPtr, winPtr->window);
Tcl_DeleteHashEntry(Tcl_FindHashEntry(&dispPtr->winTable,
(char *) winPtr->window));
winPtr->window = None;
}
dispPtr->destroyCount--;
UnlinkWindow(winPtr);
TkEventDeadWindow(winPtr);
#ifdef TK_USE_INPUT_METHODS
if (winPtr->inputContext != NULL) {
XDestroyIC(winPtr->inputContext);
}
#endif /* TK_USE_INPUT_METHODS */
if (winPtr->tagPtr != NULL) {
TkFreeBindingTags(winPtr);
}
TkOptionDeadWindow(winPtr);
TkSelDeadWindow(winPtr);
TkGrabDeadWindow(winPtr);
if (winPtr->mainPtr != NULL) {
if (winPtr->pathName != NULL) {
Tk_DeleteAllBindings(winPtr->mainPtr->bindingTable,
(ClientData) winPtr->pathName);
Tcl_DeleteHashEntry(Tcl_FindHashEntry(&winPtr->mainPtr->nameTable,
winPtr->pathName));
}
winPtr->mainPtr->refCount--;
if (winPtr->mainPtr->refCount == 0) {
register TkCmd *cmdPtr;
/*
* We just deleted the last window in the application. Delete
* the TkMainInfo structure too and replace all of Tk's commands
* with dummy commands that return errors. Also delete the
* "send" command to unregister the interpreter.
*
* NOTE: Only replace the commands it if the interpreter is
* not being deleted. If it *is*, the interpreter cleanup will
* do all the needed work.
*/
if ((winPtr->mainPtr->interp != NULL) &&
(!Tcl_InterpDeleted(winPtr->mainPtr->interp))) {
for (cmdPtr = commands; cmdPtr->name != NULL; cmdPtr++) {
Tcl_CreateCommand(winPtr->mainPtr->interp, cmdPtr->name,
TkDeadAppCmd, (ClientData) NULL,
(void (*) _ANSI_ARGS_((ClientData))) NULL);
}
Tcl_CreateCommand(winPtr->mainPtr->interp, "send",
TkDeadAppCmd, (ClientData) NULL,
(void (*) _ANSI_ARGS_((ClientData))) NULL);
Tcl_UnlinkVar(winPtr->mainPtr->interp, "tk_strictMotif");
}
Tcl_DeleteHashTable(&winPtr->mainPtr->nameTable);
TkBindFree(winPtr->mainPtr);
TkDeleteAllImages(winPtr->mainPtr);
ckfree((char *) winPtr->mainPtr);
}
}
ckfree((char *) winPtr);
}
/*
*--------------------------------------------------------------
*
* Tk_MapWindow --
*
* Map a window within its parent. This may require the
* window and/or its parents to actually be created.
*
* Results:
* None.
*
* Side effects:
* The given window will be mapped. Windows may also
* be created.
*
*--------------------------------------------------------------
*/
void
Tk_MapWindow(tkwin)
Tk_Window tkwin; /* Token for window to map. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
XEvent event;
if (winPtr->flags & TK_MAPPED) {
return;
}
if (winPtr->window == None) {
Tk_MakeWindowExist(tkwin);
}
if (winPtr->flags & TK_TOP_LEVEL) {
/*
* Lots of special processing has to be done for top-level
* windows. Let tkWm.c handle everything itself.
*/
TkWmMapWindow(winPtr);
return;
}
winPtr->flags |= TK_MAPPED;
XMapWindow(winPtr->display, winPtr->window);
event.type = MapNotify;
event.xmap.serial = LastKnownRequestProcessed(winPtr->display);
event.xmap.send_event = False;
event.xmap.display = winPtr->display;
event.xmap.event = winPtr->window;
event.xmap.window = winPtr->window;
event.xmap.override_redirect = winPtr->atts.override_redirect;
Tk_HandleEvent(&event);
}
/*
*--------------------------------------------------------------
*
* Tk_MakeWindowExist --
*
* Ensure that a particular window actually exists. This
* procedure shouldn't normally need to be invoked from
* outside the Tk package, but may be needed if someone
* wants to manipulate a window before mapping it.
*
* Results:
* None.
*
* Side effects:
* When the procedure returns, the X window associated with
* tkwin is guaranteed to exist. This may require the
* window's ancestors to be created also.
*
*--------------------------------------------------------------
*/
void
Tk_MakeWindowExist(tkwin)
Tk_Window tkwin; /* Token for window. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
TkWindow *winPtr2;
Window parent;
Tcl_HashEntry *hPtr;
int new;
if (winPtr->window != None) {
return;
}
if ((winPtr->parentPtr == NULL) || (winPtr->flags & TK_TOP_LEVEL)) {
parent = XRootWindow(winPtr->display, winPtr->screenNum);
} else {
if (winPtr->parentPtr->window == None) {
Tk_MakeWindowExist((Tk_Window) winPtr->parentPtr);
}
parent = winPtr->parentPtr->window;
}
winPtr->window = TkMakeWindow(winPtr, parent);
hPtr = Tcl_CreateHashEntry(&winPtr->dispPtr->winTable,
(char *) winPtr->window, &new);
Tcl_SetHashValue(hPtr, winPtr);
winPtr->dirtyAtts = 0;
winPtr->dirtyChanges = 0;
#ifdef TK_USE_INPUT_METHODS
winPtr->inputContext = NULL;
#endif /* TK_USE_INPUT_METHODS */
if (!(winPtr->flags & TK_TOP_LEVEL)) {
/*
* If any siblings higher up in the stacking order have already
* been created then move this window to its rightful position
* in the stacking order.
*
* NOTE: this code ignores any changes anyone might have made
* to the sibling and stack_mode field of the window's attributes,
* so it really isn't safe for these to be manipulated except
* by calling Tk_RestackWindow.
*/
for (winPtr2 = winPtr->nextPtr; winPtr2 != NULL;
winPtr2 = winPtr2->nextPtr) {
if ((winPtr2->window != None) && !(winPtr2->flags & TK_TOP_LEVEL)) {
XWindowChanges changes;
changes.sibling = winPtr2->window;
changes.stack_mode = Below;
XConfigureWindow(winPtr->display, winPtr->window,
CWSibling|CWStackMode, &changes);
break;
}
}
/*
* If this window has a different colormap than its parent, add
* the window to the WM_COLORMAP_WINDOWS property for its top-level.
*/
if ((winPtr->parentPtr != NULL) &&
(winPtr->atts.colormap != winPtr->parentPtr->atts.colormap)) {
TkWmAddToColormapWindows(winPtr);
winPtr->flags |= TK_WM_COLORMAP_WINDOW;
}
}
/*
* Issue a ConfigureNotify event if there were deferred configuration
* changes (but skip it if the window is being deleted; the
* ConfigureNotify event could cause problems if we're being called
* from Tk_DestroyWindow under some conditions).
*/
if ((winPtr->flags & TK_NEED_CONFIG_NOTIFY)
&& !(winPtr->flags & TK_ALREADY_DEAD)){
winPtr->flags &= ~TK_NEED_CONFIG_NOTIFY;
DoConfigureNotify(winPtr);
}
}
/*
*--------------------------------------------------------------
*
* Tk_UnmapWindow, etc. --
*
* There are several procedures under here, each of which
* mirrors an existing X procedure. In addition to performing
* the functions of the corresponding procedure, each
* procedure also updates the local window structure and
* synthesizes an X event (if the window's structure is being
* managed internally).
*
* Results:
* See the manual entries.
*
* Side effects:
* See the manual entries.
*
*--------------------------------------------------------------
*/
void
Tk_UnmapWindow(tkwin)
Tk_Window tkwin; /* Token for window to unmap. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
if (!(winPtr->flags & TK_MAPPED) || (winPtr->flags & TK_ALREADY_DEAD)) {
return;
}
if (winPtr->flags & TK_TOP_LEVEL) {
/*
* Special processing has to be done for top-level windows. Let
* tkWm.c handle everything itself.
*/
TkWmUnmapWindow(winPtr);
return;
}
winPtr->flags &= ~TK_MAPPED;
XUnmapWindow(winPtr->display, winPtr->window);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
XEvent event;
event.type = UnmapNotify;
event.xunmap.serial = LastKnownRequestProcessed(winPtr->display);
event.xunmap.send_event = False;
event.xunmap.display = winPtr->display;
event.xunmap.event = winPtr->window;
event.xunmap.window = winPtr->window;
event.xunmap.from_configure = False;
Tk_HandleEvent(&event);
}
}
void
Tk_ConfigureWindow(tkwin, valueMask, valuePtr)
Tk_Window tkwin; /* Window to re-configure. */
unsigned int valueMask; /* Mask indicating which parts of
* *valuePtr are to be used. */
XWindowChanges *valuePtr; /* New values. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
if (valueMask & CWX) {
winPtr->changes.x = valuePtr->x;
}
if (valueMask & CWY) {
winPtr->changes.y = valuePtr->y;
}
if (valueMask & CWWidth) {
winPtr->changes.width = valuePtr->width;
}
if (valueMask & CWHeight) {
winPtr->changes.height = valuePtr->height;
}
if (valueMask & CWBorderWidth) {
winPtr->changes.border_width = valuePtr->border_width;
}
if (valueMask & (CWSibling|CWStackMode)) {
panic("Can't set sibling or stack mode from Tk_ConfigureWindow.");
}
if (winPtr->window != None) {
XConfigureWindow(winPtr->display, winPtr->window,
valueMask, valuePtr);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
DoConfigureNotify(winPtr);
}
} else {
winPtr->dirtyChanges |= valueMask;
winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
}
}
void
Tk_MoveWindow(tkwin, x, y)
Tk_Window tkwin; /* Window to move. */
int x, y; /* New location for window (within
* parent). */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->changes.x = x;
winPtr->changes.y = y;
if (winPtr->window != None) {
XMoveWindow(winPtr->display, winPtr->window, x, y);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
DoConfigureNotify(winPtr);
}
} else {
winPtr->dirtyChanges |= CWX|CWY;
winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
}
}
void
Tk_ResizeWindow(tkwin, width, height)
Tk_Window tkwin; /* Window to resize. */
int width, height; /* New dimensions for window. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->changes.width = (unsigned) width;
winPtr->changes.height = (unsigned) height;
if (winPtr->window != None) {
XResizeWindow(winPtr->display, winPtr->window, (unsigned) width,
(unsigned) height);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
DoConfigureNotify(winPtr);
}
} else {
winPtr->dirtyChanges |= CWWidth|CWHeight;
winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
}
}
void
Tk_MoveResizeWindow(tkwin, x, y, width, height)
Tk_Window tkwin; /* Window to move and resize. */
int x, y; /* New location for window (within
* parent). */
int width, height; /* New dimensions for window. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->changes.x = x;
winPtr->changes.y = y;
winPtr->changes.width = (unsigned) width;
winPtr->changes.height = (unsigned) height;
if (winPtr->window != None) {
XMoveResizeWindow(winPtr->display, winPtr->window, x, y,
(unsigned) width, (unsigned) height);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
DoConfigureNotify(winPtr);
}
} else {
winPtr->dirtyChanges |= CWX|CWY|CWWidth|CWHeight;
winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
}
}
void
Tk_SetWindowBorderWidth(tkwin, width)
Tk_Window tkwin; /* Window to modify. */
int width; /* New border width for window. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->changes.border_width = width;
if (winPtr->window != None) {
XSetWindowBorderWidth(winPtr->display, winPtr->window,
(unsigned) width);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
DoConfigureNotify(winPtr);
}
} else {
winPtr->dirtyChanges |= CWBorderWidth;
winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
}
}
void
Tk_ChangeWindowAttributes(tkwin, valueMask, attsPtr)
Tk_Window tkwin; /* Window to manipulate. */
unsigned long valueMask; /* OR'ed combination of bits,
* indicating which fields of
* *attsPtr are to be used. */
register XSetWindowAttributes *attsPtr;
/* New values for some attributes. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
if (valueMask & CWBackPixmap) {
winPtr->atts.background_pixmap = attsPtr->background_pixmap;
}
if (valueMask & CWBackPixel) {
winPtr->atts.background_pixel = attsPtr->background_pixel;
}
if (valueMask & CWBorderPixmap) {
winPtr->atts.border_pixmap = attsPtr->border_pixmap;
}
if (valueMask & CWBorderPixel) {
winPtr->atts.border_pixel = attsPtr->border_pixel;
}
if (valueMask & CWBitGravity) {
winPtr->atts.bit_gravity = attsPtr->bit_gravity;
}
if (valueMask & CWWinGravity) {
winPtr->atts.win_gravity = attsPtr->win_gravity;
}
if (valueMask & CWBackingStore) {
winPtr->atts.backing_store = attsPtr->backing_store;
}
if (valueMask & CWBackingPlanes) {
winPtr->atts.backing_planes = attsPtr->backing_planes;
}
if (valueMask & CWBackingPixel) {
winPtr->atts.backing_pixel = attsPtr->backing_pixel;
}
if (valueMask & CWOverrideRedirect) {
winPtr->atts.override_redirect = attsPtr->override_redirect;
}
if (valueMask & CWSaveUnder) {
winPtr->atts.save_under = attsPtr->save_under;
}
if (valueMask & CWEventMask) {
winPtr->atts.event_mask = attsPtr->event_mask;
}
if (valueMask & CWDontPropagate) {
winPtr->atts.do_not_propagate_mask
= attsPtr->do_not_propagate_mask;
}
if (valueMask & CWColormap) {
winPtr->atts.colormap = attsPtr->colormap;
}
if (valueMask & CWCursor) {
winPtr->atts.cursor = attsPtr->cursor;
}
if (winPtr->window != None) {
XChangeWindowAttributes(winPtr->display, winPtr->window,
valueMask, attsPtr);
} else {
winPtr->dirtyAtts |= valueMask;
}
}
void
Tk_SetWindowBackground(tkwin, pixel)
Tk_Window tkwin; /* Window to manipulate. */
unsigned long pixel; /* Pixel value to use for
* window's background. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->atts.background_pixel = pixel;
if (winPtr->window != None) {
XSetWindowBackground(winPtr->display, winPtr->window, pixel);
} else {
winPtr->dirtyAtts = (winPtr->dirtyAtts & (unsigned) ~CWBackPixmap)
| CWBackPixel;
}
}
void
Tk_SetWindowBackgroundPixmap(tkwin, pixmap)
Tk_Window tkwin; /* Window to manipulate. */
Pixmap pixmap; /* Pixmap to use for window's
* background. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->atts.background_pixmap = pixmap;
if (winPtr->window != None) {
XSetWindowBackgroundPixmap(winPtr->display,
winPtr->window, pixmap);
} else {
winPtr->dirtyAtts = (winPtr->dirtyAtts & (unsigned) ~CWBackPixel)
| CWBackPixmap;
}
}
void
Tk_SetWindowBorder(tkwin, pixel)
Tk_Window tkwin; /* Window to manipulate. */
unsigned long pixel; /* Pixel value to use for
* window's border. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->atts.border_pixel = pixel;
if (winPtr->window != None) {
XSetWindowBorder(winPtr->display, winPtr->window, pixel);
} else {
winPtr->dirtyAtts = (winPtr->dirtyAtts & (unsigned) ~CWBorderPixmap)
| CWBorderPixel;
}
}
void
Tk_SetWindowBorderPixmap(tkwin, pixmap)
Tk_Window tkwin; /* Window to manipulate. */
Pixmap pixmap; /* Pixmap to use for window's
* border. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->atts.border_pixmap = pixmap;
if (winPtr->window != None) {
XSetWindowBorderPixmap(winPtr->display,
winPtr->window, pixmap);
} else {
winPtr->dirtyAtts = (winPtr->dirtyAtts & (unsigned) ~CWBorderPixel)
| CWBorderPixmap;
}
}
void
Tk_DefineCursor(tkwin, cursor)
Tk_Window tkwin; /* Window to manipulate. */
Tk_Cursor cursor; /* Cursor to use for window (may be None). */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
#ifdef MAC_TCL
winPtr->atts.cursor = (XCursor) cursor;
#else
winPtr->atts.cursor = (Cursor) cursor;
#endif
if (winPtr->window != None) {
XDefineCursor(winPtr->display, winPtr->window, winPtr->atts.cursor);
} else {
winPtr->dirtyAtts = winPtr->dirtyAtts | CWCursor;
}
}
void
Tk_UndefineCursor(tkwin)
Tk_Window tkwin; /* Window to manipulate. */
{
Tk_DefineCursor(tkwin, None);
}
void
Tk_SetWindowColormap(tkwin, colormap)
Tk_Window tkwin; /* Window to manipulate. */
Colormap colormap; /* Colormap to use for window. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->atts.colormap = colormap;
if (winPtr->window != None) {
XSetWindowColormap(winPtr->display, winPtr->window, colormap);
if (!(winPtr->flags & TK_TOP_LEVEL)) {
TkWmAddToColormapWindows(winPtr);
winPtr->flags |= TK_WM_COLORMAP_WINDOW;
}
} else {
winPtr->dirtyAtts |= CWColormap;
}
}
/*
*----------------------------------------------------------------------
*
* Tk_SetWindowVisual --
*
* This procedure is called to specify a visual to be used
* for a Tk window when it is created. This procedure, if
* called at all, must be called before the X window is created
* (i.e. before Tk_MakeWindowExist is called).
*
* Results:
* The return value is 1 if successful, or 0 if the X window has
* been already created.
*
* Side effects:
* The information given is stored for when the window is created.
*
*----------------------------------------------------------------------
*/
int
Tk_SetWindowVisual(tkwin, visual, depth, colormap)
Tk_Window tkwin; /* Window to manipulate. */
Visual *visual; /* New visual for window. */
int depth; /* New depth for window. */
Colormap colormap; /* An appropriate colormap for the visual. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
if( winPtr->window != None ){
/* Too late! */
return 0;
}
winPtr->visual = visual;
winPtr->depth = depth;
winPtr->atts.colormap = colormap;
/*
* The following code is needed to make sure that the window doesn't
* inherit the parent's border pixmap, which would result in a BadMatch
* error.
*/
if (!(winPtr->dirtyAtts & CWBorderPixmap)) {
winPtr->dirtyAtts |= CWBorderPixel;
}
return 1;
}
/*
*----------------------------------------------------------------------
*
* DoConfigureNotify --
*
* Generate a ConfigureNotify event describing the current
* configuration of a window.
*
* Results:
* None.
*
* Side effects:
* An event is generated and processed by Tk_HandleEvent.
*
*----------------------------------------------------------------------
*/
static void
DoConfigureNotify(winPtr)
register TkWindow *winPtr; /* Window whose configuration
* was just changed. */
{
XEvent event;
event.type = ConfigureNotify;
event.xconfigure.serial = LastKnownRequestProcessed(winPtr->display);
event.xconfigure.send_event = False;
event.xconfigure.display = winPtr->display;
event.xconfigure.event = winPtr->window;
event.xconfigure.window = winPtr->window;
event.xconfigure.x = winPtr->changes.x;
event.xconfigure.y = winPtr->changes.y;
event.xconfigure.width = winPtr->changes.width;
event.xconfigure.height = winPtr->changes.height;
event.xconfigure.border_width = winPtr->changes.border_width;
if (winPtr->changes.stack_mode == Above) {
event.xconfigure.above = winPtr->changes.sibling;
} else {
event.xconfigure.above = None;
}
event.xconfigure.override_redirect = winPtr->atts.override_redirect;
Tk_HandleEvent(&event);
}
/*
*----------------------------------------------------------------------
*
* Tk_SetClass --
*
* This procedure is used to give a window a class.
*
* Results:
* None.
*
* Side effects:
* A new class is stored for tkwin, replacing any existing
* class for it.
*
*----------------------------------------------------------------------
*/
void
Tk_SetClass(tkwin, className)
Tk_Window tkwin; /* Token for window to assign class. */
char *className; /* New class for tkwin. */
{
register TkWindow *winPtr = (TkWindow *) tkwin;
winPtr->classUid = Tk_GetUid(className);
if (winPtr->flags & TK_TOP_LEVEL) {
TkWmSetClass(winPtr);
}
TkOptionClassChanged(winPtr);
}
/*
*----------------------------------------------------------------------
*
* Tk_NameToWindow --
*
* Given a string name for a window, this procedure
* returns the token for the window, if there exists a
* window corresponding to the given name.
*
* Results:
* The return result is either a token for the window corresponding
* to "name", or else NULL to indicate that there is no such
* window. In this case, an error message is left in interp->result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_NameToWindow(interp, pathName, tkwin)
Tcl_Interp *interp; /* Where to report errors. */
char *pathName; /* Path name of window. */
Tk_Window tkwin; /* Token for window: name is assumed to
* belong to the same main window as tkwin. */
{
Tcl_HashEntry *hPtr;
hPtr = Tcl_FindHashEntry(&((TkWindow *) tkwin)->mainPtr->nameTable,
pathName);
if (hPtr == NULL) {
Tcl_AppendResult(interp, "bad window path name \"",
pathName, "\"", (char *) NULL);
return NULL;
}
return (Tk_Window) Tcl_GetHashValue(hPtr);
}
/*
*----------------------------------------------------------------------
*
* Tk_IdToWindow --
*
* Given an X display and window ID, this procedure returns the
* Tk token for the window, if there exists a Tk window corresponding
* to the given ID.
*
* Results:
* The return result is either a token for the window corresponding
* to the given X id, or else NULL to indicate that there is no such
* window.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_IdToWindow(display, window)
Display *display; /* X display containing the window. */
Window window; /* X window window id. */
{
TkDisplay *dispPtr;
Tcl_HashEntry *hPtr;
for (dispPtr = tkDisplayList; ; dispPtr = dispPtr->nextPtr) {
if (dispPtr == NULL) {
return NULL;
}
if (dispPtr->display == display) {
break;
}
}
hPtr = Tcl_FindHashEntry(&dispPtr->winTable, (char *) window);
if (hPtr == NULL) {
return NULL;
}
return (Tk_Window) Tcl_GetHashValue(hPtr);
}
/*
*----------------------------------------------------------------------
*
* Tk_DisplayName --
*
* Return the textual name of a window's display.
*
* Results:
* The return value is the string name of the display associated
* with tkwin.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
char *
Tk_DisplayName(tkwin)
Tk_Window tkwin; /* Window whose display name is desired. */
{
return ((TkWindow *) tkwin)->dispPtr->name;
}
/*
*----------------------------------------------------------------------
*
* UnlinkWindow --
*
* This procedure removes a window from the childList of its
* parent.
*
* Results:
* None.
*
* Side effects:
* The window is unlinked from its childList.
*
*----------------------------------------------------------------------
*/
static void
UnlinkWindow(winPtr)
TkWindow *winPtr; /* Child window to be unlinked. */
{
TkWindow *prevPtr;
if (winPtr->parentPtr == NULL) {
return;
}
prevPtr = winPtr->parentPtr->childList;
if (prevPtr == winPtr) {
winPtr->parentPtr->childList = winPtr->nextPtr;
if (winPtr->nextPtr == NULL) {
winPtr->parentPtr->lastChildPtr = NULL;
}
} else {
while (prevPtr->nextPtr != winPtr) {
prevPtr = prevPtr->nextPtr;
if (prevPtr == NULL) {
panic("UnlinkWindow couldn't find child in parent");
}
}
prevPtr->nextPtr = winPtr->nextPtr;
if (winPtr->nextPtr == NULL) {
winPtr->parentPtr->lastChildPtr = prevPtr;
}
}
}
/*
*----------------------------------------------------------------------
*
* Tk_RestackWindow --
*
* Change a window's position in the stacking order.
*
* Results:
* TCL_OK is normally returned. If other is not a descendant
* of tkwin's parent then TCL_ERROR is returned and tkwin is
* not repositioned.
*
* Side effects:
* Tkwin is repositioned in the stacking order.
*
*----------------------------------------------------------------------
*/
int
Tk_RestackWindow(tkwin, aboveBelow, other)
Tk_Window tkwin; /* Token for window whose position in
* the stacking order is to change. */
int aboveBelow; /* Indicates new position of tkwin relative
* to other; must be Above or Below. */
Tk_Window other; /* Tkwin will be moved to a position that
* puts it just above or below this window.
* If NULL then tkwin goes above or below
* all windows in the same parent. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
TkWindow *otherPtr = (TkWindow *) other;
XWindowChanges changes;
unsigned int mask;
/*
* Special case: if winPtr is a top-level window then just find
* the top-level ancestor of otherPtr and restack winPtr above
* otherPtr without changing any of Tk's childLists.
*/
changes.stack_mode = aboveBelow;
mask = CWStackMode;
if (winPtr->flags & TK_TOP_LEVEL) {
while ((otherPtr != NULL) && !(otherPtr->flags & TK_TOP_LEVEL)) {
otherPtr = otherPtr->parentPtr;
}
TkWmRestackToplevel(winPtr, aboveBelow, otherPtr);
return TCL_OK;
}
/*
* Find an ancestor of otherPtr that is a sibling of winPtr.
*/
if (winPtr->parentPtr == NULL) {
/*
* Window is going to be deleted shortly; don't do anything.
*/
return TCL_OK;
}
if (otherPtr == NULL) {
if (aboveBelow == Above) {
otherPtr = winPtr->parentPtr->lastChildPtr;
} else {
otherPtr = winPtr->parentPtr->childList;
}
} else {
while (winPtr->parentPtr != otherPtr->parentPtr) {
if ((otherPtr == NULL) || (otherPtr->flags & TK_TOP_LEVEL)) {
return TCL_ERROR;
}
otherPtr = otherPtr->parentPtr;
}
}
if (otherPtr == winPtr) {
return TCL_OK;
}
/*
* Reposition winPtr in the stacking order.
*/
UnlinkWindow(winPtr);
if (aboveBelow == Above) {
winPtr->nextPtr = otherPtr->nextPtr;
if (winPtr->nextPtr == NULL) {
winPtr->parentPtr->lastChildPtr = winPtr;
}
otherPtr->nextPtr = winPtr;
} else {
TkWindow *prevPtr;
prevPtr = winPtr->parentPtr->childList;
if (prevPtr == otherPtr) {
winPtr->parentPtr->childList = winPtr;
} else {
while (prevPtr->nextPtr != otherPtr) {
prevPtr = prevPtr->nextPtr;
}
prevPtr->nextPtr = winPtr;
}
winPtr->nextPtr = otherPtr;
}
/*
* Notify the X server of the change. If winPtr hasn't yet been
* created then there's no need to tell the X server now, since
* the stacking order will be handled properly when the window
* is finally created.
*/
if (winPtr->window != None) {
changes.stack_mode = Above;
for (otherPtr = winPtr->nextPtr; otherPtr != NULL;
otherPtr = otherPtr->nextPtr) {
if ((otherPtr->window != None)
&& !(otherPtr->flags & TK_TOP_LEVEL)){
changes.sibling = otherPtr->window;
changes.stack_mode = Below;
mask = CWStackMode|CWSibling;
break;
}
}
XConfigureWindow(winPtr->display, winPtr->window, mask, &changes);
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* Tk_MainWindow --
*
* Returns the main window for an application.
*
* Results:
* If interp has a Tk application associated with it, the main
* window for the application is returned. Otherwise NULL is
* returned and an error message is left in interp->result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_MainWindow(interp)
Tcl_Interp *interp; /* Interpreter that embodies the
* application. Used for error
* reporting also. */
{
TkMainInfo *mainPtr;
for (mainPtr = tkMainWindowList; mainPtr != NULL;
mainPtr = mainPtr->nextPtr) {
if (mainPtr->interp == interp) {
return (Tk_Window) mainPtr->winPtr;
}
}
interp->result = "this isn't a Tk application";
return NULL;
}
/*
*----------------------------------------------------------------------
*
* Tk_StrictMotif --
*
* Indicates whether strict Motif compliance has been specified
* for the given window.
*
* Results:
* The return value is 1 if strict Motif compliance has been
* requested for tkwin's application by setting the tk_strictMotif
* variable in its interpreter to a true value. 0 is returned
* if tk_strictMotif has a false value.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
Tk_StrictMotif(tkwin)
Tk_Window tkwin; /* Window whose application is
* to be checked. */
{
return ((TkWindow *) tkwin)->mainPtr->strictMotif;
}
/*
*--------------------------------------------------------------
*
* OpenIM --
*
* Tries to open an X input method, associated with the
* given display. Right now we can only deal with a bare-bones
* input style: no preedit, and no status.
*
* Results:
* Stores the input method in dispPtr->inputMethod; if there isn't
* a suitable input method, then NULL is stored in dispPtr->inputMethod.
*
* Side effects:
* An input method gets opened.
*
*--------------------------------------------------------------
*/
static void
OpenIM(dispPtr)
TkDisplay *dispPtr; /* Tk's structure for the display. */
{
#ifndef TK_USE_INPUT_METHODS
return;
#else
unsigned short i;
XIMStyles *stylePtr;
dispPtr->inputMethod = XOpenIM(dispPtr->display, NULL, NULL, NULL);
if (dispPtr->inputMethod == NULL) {
return;
}
if ((XGetIMValues(dispPtr->inputMethod, XNQueryInputStyle, &stylePtr,
NULL) != NULL) || (stylePtr == NULL)) {
goto error;
}
for (i = 0; i < stylePtr->count_styles; i++) {
if (stylePtr->supported_styles[i]
== (XIMPreeditNothing|XIMStatusNothing)) {
XFree(stylePtr);
return;
}
}
XFree(stylePtr);
error:
/*
* Should close the input method, but this causes core dumps on some
* systems (e.g. Solaris 2.3 as of 1/6/95).
* XCloseIM(dispPtr->inputMethod);
*/
dispPtr->inputMethod = NULL;
return;
#endif /* TK_USE_INPUT_METHODS */
}
/*
*----------------------------------------------------------------------
*
* Tk_GetNumMainWindows --
*
* This procedure returns the number of main windows currently
* open in this process.
*
* Results:
* The number of main windows open in this process.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
Tk_GetNumMainWindows()
{
return numMainWindows;
}
/*
*----------------------------------------------------------------------
*
* DeleteWindowsExitProc --
*
* This procedure is invoked as an exit handler. It deletes all
* of the main windows in the process.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static void
DeleteWindowsExitProc(clientData)
ClientData clientData; /* Not used. */
{
while (tkMainWindowList != NULL) {
Tk_DestroyWindow((Tk_Window) tkMainWindowList->winPtr);
}
}
/*
*----------------------------------------------------------------------
*
* Tk_Init --
*
* This procedure is invoked to add Tk to an interpreter. It
* incorporates all of Tk's commands into the interpreter and
* creates the main window for a new Tk application. If the
* interpreter contains a variable "argv", this procedure
* extracts several arguments from that variable, uses them
* to configure the main window, and modifies argv to exclude
* the arguments (see the "wish" documentation for a list of
* the arguments that are extracted).
*
* Results:
* Returns a standard Tcl completion code and sets interp->result
* if there is an error.
*
* Side effects:
* Depends on various initialization scripts that get invoked.
*
*----------------------------------------------------------------------
*/
int
Tk_Init(interp)
Tcl_Interp *interp; /* Interpreter to initialize. */
{
char *p;
int argc, code;
char **argv, *args[20];
Tcl_DString class;
char buffer[30];
/*
* If there is an "argv" variable, get its value, extract out
* relevant arguments from it, and rewrite the variable without
* the arguments that we used.
*/
synchronize = 0;
name = display = geometry = colormap = visual = NULL;
p = Tcl_GetVar2(interp, "argv", (char *) NULL, TCL_GLOBAL_ONLY);
argv = NULL;
if (p != NULL) {
if (Tcl_SplitList(interp, p, &argc, &argv) != TCL_OK) {
argError:
Tcl_AddErrorInfo(interp,
"\n (processing arguments in argv variable)");
return TCL_ERROR;
}
if (Tk_ParseArgv(interp, (Tk_Window) NULL, &argc, argv,
argTable, TK_ARGV_DONT_SKIP_FIRST_ARG|TK_ARGV_NO_DEFAULTS)
!= TCL_OK) {
ckfree((char *) argv);
goto argError;
}
p = Tcl_Merge(argc, argv);
Tcl_SetVar2(interp, "argv", (char *) NULL, p, TCL_GLOBAL_ONLY);
sprintf(buffer, "%d", argc);
Tcl_SetVar2(interp, "argc", (char *) NULL, buffer, TCL_GLOBAL_ONLY);
ckfree(p);
}
/*
* Figure out the application's name and class.
*/
if (name == NULL) {
name = Tcl_GetVar(interp, "argv0", TCL_GLOBAL_ONLY);
if ((name == NULL) || (*name == 0)) {
name = "tk";
} else {
p = strrchr(name, '/');
if (p != NULL) {
name = p+1;
}
}
}
Tcl_DStringInit(&class);
Tcl_DStringAppend(&class, name, -1);
p = Tcl_DStringValue(&class);
if (islower(UCHAR(*p))) {
*p = toupper(UCHAR(*p));
}
/*
* Create an argument list for creating the top-level window,
* using the information parsed from argv, if any.
*/
args[0] = "toplevel";
args[1] = ".";
args[2] = "-class";
args[3] = Tcl_DStringValue(&class);
argc = 4;
if (display != NULL) {
args[argc] = "-screen";
args[argc+1] = display;
argc += 2;
/*
* If this is the first application for this process, save
* the display name in the DISPLAY environment variable so
* that it will be available to subprocesses created by us.
*/
if (numMainWindows == 0) {
Tcl_SetVar2(interp, "env", "DISPLAY", display, TCL_GLOBAL_ONLY);
}
}
if (colormap != NULL) {
args[argc] = "-colormap";
args[argc+1] = colormap;
argc += 2;
}
if (visual != NULL) {
args[argc] = "-visual";
args[argc+1] = visual;
argc += 2;
}
args[argc] = NULL;
code = TkCreateFrame((ClientData) NULL, interp, argc, args, 1, name);
Tcl_DStringFree(&class);
if (code != TCL_OK) {
goto done;
}
Tcl_ResetResult(interp);
if (synchronize) {
XSynchronize(Tk_Display(Tk_MainWindow(interp)), True);
}
/*
* Set the geometry of the main window, if requested. Put the
* requested geometry into the "geometry" variable.
*/
if (geometry != NULL) {
Tcl_SetVar(interp, "geometry", geometry, TCL_GLOBAL_ONLY);
code = Tcl_VarEval(interp, "wm geometry . ", geometry, (char *) NULL);
if (code != TCL_OK) {
goto done;
}
}
if (Tcl_PkgRequire(interp, "Tcl", TCL_VERSION, 1) == NULL) {
code = TCL_ERROR;
goto done;
}
code = Tcl_PkgProvide(interp, "Tk", TK_VERSION);
if (code != TCL_OK) {
goto done;
}
/*
* Invoke platform-specific initialization.
*/
code = TkPlatformInit(interp);
done:
if (argv != NULL) {
ckfree((char *) argv);
}
return code;
}
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