archie/tk4.2/win/tkWinWindow.c
2024-05-27 16:40:40 +02:00

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/*
* tkWinWindow.c --
*
* Xlib emulation routines for Windows related to creating,
* displaying and destroying windows.
*
* Copyright (c) 1995 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: @(#) tkWinWindow.c 1.13 96/04/11 17:52:20
*/
#include "tkWinInt.h"
/*
* Forward declarations for procedures defined in this file:
*/
static void NotifyVisibility _ANSI_ARGS_((XEvent *eventPtr,
TkWindow *winPtr));
static void StackWindow _ANSI_ARGS_((Window w, Window sibling,
int stack_mode));
/*
*----------------------------------------------------------------------
*
* TkMakeWindow --
*
* Creates a Windows window object based on the current attributes
* of the specified TkWindow.
*
* Results:
* Returns a pointer to a new TkWinDrawable cast to a Window.
*
* Side effects:
* Creates a new window.
*
*----------------------------------------------------------------------
*/
Window
TkMakeWindow(winPtr, parent)
TkWindow *winPtr;
Window parent;
{
HWND parentWin;
TkWinDrawable *twdPtr;
int style;
twdPtr = (TkWinDrawable*) ckalloc(sizeof(TkWinDrawable));
if (twdPtr == NULL) {
return None;
}
twdPtr->type = TWD_WINDOW;
twdPtr->window.winPtr = winPtr;
if (parent != None) {
parentWin = TkWinGetHWND(parent);
style = WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
} else {
parentWin = NULL;
style = WS_POPUP | WS_CLIPCHILDREN;
}
twdPtr->window.handle = CreateWindow(TK_WIN_CHILD_CLASS_NAME, "", style,
winPtr->changes.x, winPtr->changes.y,
winPtr->changes.width, winPtr->changes.height,
parentWin, NULL, TkWinGetAppInstance(), twdPtr);
if (twdPtr->window.handle == NULL) {
ckfree((char *) twdPtr);
twdPtr = NULL;
}
return (Window)twdPtr;
}
/*
*----------------------------------------------------------------------
*
* XDestroyWindow --
*
* Destroys the given window.
*
* Results:
* None.
*
* Side effects:
* Sends the WM_DESTROY message to the window and then destroys
* it the Win32 resources associated with the window.
*
*----------------------------------------------------------------------
*/
void
XDestroyWindow(display, w)
Display* display;
Window w;
{
TkWinDrawable *twdPtr = (TkWinDrawable *)w;
TkWindow *winPtr = TkWinGetWinPtr(w);
HWND hwnd = TkWinGetHWND(w);
display->request++;
/*
* Remove references to the window in the pointer module, and
* then remove the backpointer from the drawable.
*/
TkWinPointerDeadWindow(winPtr);
twdPtr->window.winPtr = NULL;
/*
* Don't bother destroying the window if we are going to destroy
* the parent later. Also if the window has already been destroyed
* then we need to free the drawable now.
*/
if (!hwnd) {
ckfree((char *)twdPtr);
} else if (!(winPtr->flags & TK_PARENT_DESTROYED)) {
DestroyWindow(hwnd);
}
}
/*
*----------------------------------------------------------------------
*
* XMapWindow --
*
* Cause the given window to become visible.
*
* Results:
* None
*
* Side effects:
* Causes the window state to change, and generates a MapNotify
* event.
*
*----------------------------------------------------------------------
*/
void
XMapWindow(display, w)
Display* display;
Window w;
{
XEvent event;
TkWindow *parentPtr;
TkWindow *winPtr = TkWinGetWinPtr(w);
display->request++;
ShowWindow(TkWinGetHWND(w), SW_SHOWNORMAL);
winPtr->flags |= TK_MAPPED;
event.type = MapNotify;
event.xmap.serial = display->request;
event.xmap.send_event = False;
event.xmap.display = display;
event.xmap.event = winPtr->window;
event.xmap.window = winPtr->window;
event.xmap.override_redirect = winPtr->atts.override_redirect;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
/*
* Check to see if this window is visible now. If all of the parent
* windows up to the first toplevel are mapped, then this window and
* its mapped children have just become visible.
*/
if (!(winPtr->flags & TK_TOP_LEVEL)) {
for (parentPtr = winPtr->parentPtr; ;
parentPtr = parentPtr->parentPtr) {
if ((parentPtr == NULL) || !(parentPtr->flags & TK_MAPPED)) {
return;
}
if (parentPtr->flags & TK_TOP_LEVEL) {
break;
}
}
}
/*
* Generate VisibilityNotify events for this window and its mapped
* children.
*/
event.type = VisibilityNotify;
event.xvisibility.state = VisibilityUnobscured;
NotifyVisibility(&event, winPtr);
}
/*
*----------------------------------------------------------------------
*
* NotifyVisibility --
*
* This function recursively notifies the mapped children of the
* specified window of a change in visibility. Note that we don't
* properly report the visibility state, since Windows does not
* provide that info. The eventPtr argument must point to an event
* that has been completely initialized except for the window slot.
*
* Results:
* None.
*
* Side effects:
* Generates lots of events.
*
*----------------------------------------------------------------------
*/
static void
NotifyVisibility(eventPtr, winPtr)
XEvent *eventPtr; /* Initialized VisibilityNotify event. */
TkWindow *winPtr; /* Window to notify. */
{
eventPtr->xvisibility.window = winPtr->window;
Tk_QueueWindowEvent(eventPtr, TCL_QUEUE_TAIL);
for (winPtr = winPtr->childList; winPtr != NULL;
winPtr = winPtr->nextPtr) {
if (winPtr->flags & TK_MAPPED) {
NotifyVisibility(eventPtr, winPtr);
}
}
}
/*
*----------------------------------------------------------------------
*
* XUnmapWindow --
*
* Cause the given window to become invisible.
*
* Results:
* None
*
* Side effects:
* Causes the window state to change, and generates an UnmapNotify
* event.
*
*----------------------------------------------------------------------
*/
void
XUnmapWindow(display, w)
Display* display;
Window w;
{
XEvent event;
TkWindow *winPtr = TkWinGetWinPtr(w);
display->request++;
ShowWindow(TkWinGetHWND(w), SW_HIDE);
winPtr->flags &= ~TK_MAPPED;
event.type = UnmapNotify;
event.xunmap.serial = display->request;
event.xunmap.send_event = False;
event.xunmap.display = display;
event.xunmap.event = winPtr->window;
event.xunmap.window = winPtr->window;
event.xunmap.from_configure = False;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
}
/*
*----------------------------------------------------------------------
*
* XMoveResizeWindow --
*
* Move and resize a window relative to its parent.
*
* Results:
* None.
*
* Side effects:
* Repositions and resizes the specified window.
*
*----------------------------------------------------------------------
*/
void
XMoveResizeWindow(display, w, x, y, width, height)
Display* display;
Window w;
int x; /* Position relative to parent. */
int y;
unsigned int width;
unsigned int height;
{
display->request++;
MoveWindow(TkWinGetHWND(w), x, y, width, height, TRUE);
}
/*
*----------------------------------------------------------------------
*
* XMoveWindow --
*
* Move a window relative to its parent.
*
* Results:
* None.
*
* Side effects:
* Repositions the specified window.
*
*----------------------------------------------------------------------
*/
void
XMoveWindow(display, w, x, y)
Display* display;
Window w;
int x;
int y;
{
TkWindow *winPtr = TkWinGetWinPtr(w);
display->request++;
MoveWindow(TkWinGetHWND(w), x, y, winPtr->changes.width,
winPtr->changes.height, TRUE);
}
/*
*----------------------------------------------------------------------
*
* XResizeWindow --
*
* Resize a window.
*
* Results:
* None.
*
* Side effects:
* Resizes the specified window.
*
*----------------------------------------------------------------------
*/
void
XResizeWindow(display, w, width, height)
Display* display;
Window w;
unsigned int width;
unsigned int height;
{
TkWindow *winPtr = TkWinGetWinPtr(w);
display->request++;
MoveWindow(TkWinGetHWND(w), winPtr->changes.x, winPtr->changes.y, width,
height, TRUE);
}
/*
*----------------------------------------------------------------------
*
* XRaiseWindow --
*
* Change the stacking order of a window.
*
* Results:
* None.
*
* Side effects:
* Changes the stacking order of the specified window.
*
*----------------------------------------------------------------------
*/
void
XRaiseWindow(display, w)
Display* display;
Window w;
{
HWND window = TkWinGetHWND(w);
display->request++;
SetWindowPos(window, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE);
}
/*
*----------------------------------------------------------------------
*
* XConfigureWindow --
*
* Change the size, position, stacking, or border of the specified
* window.
*
* Results:
* None.
*
* Side effects:
* Changes the attributes of the specified window. Note that we
* ignore the passed in values and use the values stored in the
* TkWindow data structure.
*
*----------------------------------------------------------------------
*/
void
XConfigureWindow(display, w, value_mask, values)
Display* display;
Window w;
unsigned int value_mask;
XWindowChanges* values;
{
TkWindow *winPtr = TkWinGetWinPtr(w);
HWND window = TkWinGetHWND(w);
HWND insertAfter;
display->request++;
/*
* Change the shape and/or position of the window.
*/
if (value_mask & (CWX|CWY|CWWidth|CWHeight)) {
MoveWindow(window, winPtr->changes.x, winPtr->changes.y,
winPtr->changes.width, winPtr->changes.height, TRUE);
}
/*
* Change the stacking order of the window.
*/
if (value_mask & CWStackMode) {
if ((value_mask & CWSibling) && (values->sibling != None)) {
HWND sibling = TkWinGetHWND(values->sibling);
/*
* Windows doesn't support the Above mode, so we insert the
* window just below the sibling and then swap them.
*/
if (values->stack_mode == Above) {
SetWindowPos(window, sibling, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
insertAfter = window;
window = sibling;
} else {
insertAfter = sibling;
}
} else {
insertAfter = (values->stack_mode == Above) ? HWND_TOP
: HWND_BOTTOM;
}
SetWindowPos(window, insertAfter, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
}
}
/*
*----------------------------------------------------------------------
*
* XClearWindow --
*
* Clears the entire window to the current background color.
*
* Results:
* None.
*
* Side effects:
* Erases the current contents of the window.
*
*----------------------------------------------------------------------
*/
void
XClearWindow(display, w)
Display* display;
Window w;
{
RECT rc;
HBRUSH brush;
HPALETTE oldPalette, palette;
TkWindow *winPtr;
HWND hwnd = TkWinGetHWND(w);
HDC dc = GetDC(hwnd);
palette = TkWinGetPalette(display->screens[0].cmap);
oldPalette = SelectPalette(dc, palette, FALSE);
display->request++;
winPtr = TkWinGetWinPtr(w);
brush = CreateSolidBrush(winPtr->atts.background_pixel);
GetWindowRect(hwnd, &rc);
rc.right = rc.right - rc.left;
rc.bottom = rc.bottom - rc.top;
rc.left = rc.top = 0;
FillRect(dc, &rc, brush);
DeleteObject(brush);
SelectPalette(dc, oldPalette, TRUE);
ReleaseDC(hwnd, dc);
}
/*
*----------------------------------------------------------------------
*
* XChangeWindowAttributes --
*
* This function is called when the attributes on a window are
* updated. Since Tk maintains all of the window state, the only
* relevant value is the cursor.
*
* Results:
* None.
*
* Side effects:
* May cause the mouse position to be updated.
*
*----------------------------------------------------------------------
*/
void
XChangeWindowAttributes(display, w, valueMask, attributes)
Display* display;
Window w;
unsigned long valueMask;
XSetWindowAttributes* attributes;
{
if (valueMask & CWCursor) {
XDefineCursor(display, w, attributes->cursor);
}
}