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stk/Tk/win/tkWinWindow.c

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Commit of 3.99.4 version
1999-02-02 06:13:40 -05:00
/*
* 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 1.23 97/07/01 18:14:13
*/
#include "tkWinInt.h"
/*
* The windowTable maps from HWND to Tk_Window handles.
*/
static Tcl_HashTable windowTable;
/*
* Have statics in this module been initialized?
*/
static int initialized = 0;
/*
* 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));
/*
*----------------------------------------------------------------------
*
* Tk_AttachHWND --
*
* This function binds an HWND and a reflection procedure to
* the specified Tk_Window.
*
* Results:
* Returns an X Window that encapsulates the HWND.
*
* Side effects:
* May allocate a new X Window. Also enters the HWND into the
* global window table.
*
*----------------------------------------------------------------------
*/
Window
Tk_AttachHWND(tkwin, hwnd)
Tk_Window tkwin;
HWND hwnd;
{
int new;
Tcl_HashEntry *entryPtr;
TkWinDrawable *twdPtr = (TkWinDrawable *) Tk_WindowId(tkwin);
if (!initialized) {
Tcl_InitHashTable(&windowTable, TCL_ONE_WORD_KEYS);
initialized = 1;
}
/*
* Allocate a new drawable if necessary. Otherwise, remove the
* previous HWND from from the window table.
*/
if (twdPtr == NULL) {
twdPtr = (TkWinDrawable*) ckalloc(sizeof(TkWinDrawable));
twdPtr->type = TWD_WINDOW;
twdPtr->window.winPtr = (TkWindow *) tkwin;
} else if (twdPtr->window.handle != NULL) {
entryPtr = Tcl_FindHashEntry(&windowTable,
(char *)twdPtr->window.handle);
Tcl_DeleteHashEntry(entryPtr);
}
/*
* Insert the new HWND into the window table.
*/
twdPtr->window.handle = hwnd;
entryPtr = Tcl_CreateHashEntry(&windowTable, (char *)hwnd, &new);
Tcl_SetHashValue(entryPtr, (ClientData)tkwin);
return (Window)twdPtr;
}
/*
*----------------------------------------------------------------------
*
* Tk_HWNDToWindow --
*
* This function retrieves a Tk_Window from the window table
* given an HWND.
*
* Results:
* Returns the matching Tk_Window.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Tk_Window
Tk_HWNDToWindow(hwnd)
HWND hwnd;
{
Tcl_HashEntry *entryPtr;
if (!initialized) {
Tcl_InitHashTable(&windowTable, TCL_ONE_WORD_KEYS);
initialized = 1;
}
entryPtr = Tcl_FindHashEntry(&windowTable, (char*)hwnd);
if (entryPtr != NULL) {
return (Tk_Window) Tcl_GetHashValue(entryPtr);
}
return NULL;
}
/*
*----------------------------------------------------------------------
*
* Tk_GetHWND --
*
* This function extracts the HWND from an X Window.
*
* Results:
* Returns the HWND associated with the Window.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
HWND
Tk_GetHWND(window)
Window window;
{
TkWinDrawable *twdPtr = (TkWinDrawable *) window;
return twdPtr->window.handle;
}
/*
*----------------------------------------------------------------------
*
* TkpPrintWindowId --
*
* This routine stores the string representation of the
* platform dependent window handle for an X Window in the
* given buffer.
*
* Results:
* Returns the result in the specified buffer.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkpPrintWindowId(buf, window)
char *buf; /* Pointer to string large enough to hold
* the hex representation of a pointer. */
Window window; /* Window to be printed into buffer. */
{
HWND hwnd = (window) ? Tk_GetHWND(window) : 0;
sprintf(buf, "0x%x", (unsigned int) hwnd);
}
/*
*----------------------------------------------------------------------
*
* TkpScanWindowId --
*
* Given a string which represents the platform dependent window
* handle, produce the X Window id for the window.
*
* Results:
* The return value is normally TCL_OK; in this case *idPtr
* will be set to the X Window id equivalent to string. If
* string is improperly formed then TCL_ERROR is returned and
* an error message will be left in interp->result. If the
* number does not correspond to a Tk Window, then *idPtr will
* be set to None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TkpScanWindowId(interp, string, idPtr)
Tcl_Interp *interp; /* Interpreter to use for error reporting. */
char *string; /* String containing a (possibly signed)
* integer in a form acceptable to strtol. */
int *idPtr; /* Place to store converted result. */
{
int number;
Tk_Window tkwin;
if (Tcl_GetInt(interp, string, &number) != TCL_OK) {
return TCL_ERROR;
}
tkwin = Tk_HWNDToWindow((HWND)number);
if (tkwin) {
*idPtr = Tk_WindowId(tkwin);
} else {
*idPtr = None;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkpMakeWindow --
*
* 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
TkpMakeWindow(winPtr, parent)
TkWindow *winPtr;
Window parent;
{
HWND parentWin;
int style;
HWND hwnd;
if (parent != None) {
parentWin = Tk_GetHWND(parent);
style = WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
} else {
parentWin = NULL;
style = WS_POPUP | WS_CLIPCHILDREN;
}
/*
* Create the window, then ensure that it is at the top of the
* stacking order.
*/
hwnd = CreateWindowEx(WS_EX_NOPARENTNOTIFY, TK_WIN_CHILD_CLASS_NAME, NULL,
style, Tk_X(winPtr), Tk_Y(winPtr), Tk_Width(winPtr),
Tk_Height(winPtr), parentWin, NULL, Tk_GetHINSTANCE(), NULL);
SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
return Tk_AttachHWND((Tk_Window)winPtr, hwnd);
}
/*
*----------------------------------------------------------------------
*
* 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;
{
Tcl_HashEntry *entryPtr;
TkWinDrawable *twdPtr = (TkWinDrawable *)w;
TkWindow *winPtr = TkWinGetWinPtr(w);
HWND hwnd = Tk_GetHWND(w);
display->request++;
/*
* Remove references to the window in the pointer module then
* release the drawable.
*/
TkPointerDeadWindow(winPtr);
entryPtr = Tcl_FindHashEntry(&windowTable, (char*)hwnd);
if (entryPtr != NULL) {
Tcl_DeleteHashEntry(entryPtr);
}
ckfree((char *)twdPtr);
/*
* Don't bother destroying the window if we are going to destroy
* the parent later.
*/
if (hwnd != NULL && !(winPtr->flags & TK_DONT_DESTROY_WINDOW)) {
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;
/*
* 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;
}
}
} else {
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);
}
/*
* Generate VisibilityNotify events for this window and its mapped
* children.
*/
event.type = VisibilityNotify;
event.xvisibility.serial = display->request;
event.xvisibility.send_event = False;
event.xvisibility.display = display;
event.xvisibility.window = winPtr->window;
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. */
{
if (winPtr->atts.event_mask & VisibilityChangeMask) {
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++;
/*
* Bug fix: Don't short circuit this routine based on TK_MAPPED because
* it will be cleared before XUnmapWindow is called.
*/
ShowWindow(TkWinGetHWND(w), SW_HIDE);
winPtr->flags &= ~TK_MAPPED;
if (winPtr->flags & TK_TOP_LEVEL) {
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_HandleEvent(&event);
}
}
/*
*----------------------------------------------------------------------
*
* 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 hwnd = TkWinGetHWND(w);
display->request++;
/*
* Change the shape and/or position of the window.
*/
if (value_mask & (CWX|CWY|CWWidth|CWHeight)) {
MoveWindow(hwnd, winPtr->changes.x, winPtr->changes.y,
winPtr->changes.width, winPtr->changes.height, TRUE);
}
/*
* Change the stacking order of the window.
*/
if (value_mask & CWStackMode) {
HWND sibling;
if ((value_mask & CWSibling) && (values->sibling != None)) {
sibling = Tk_GetHWND(values->sibling);
} else {
sibling = NULL;
}
TkWinSetWindowPos(hwnd, sibling, values->stack_mode);
}
}
/*
*----------------------------------------------------------------------
*
* 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);
}
}
/*
*----------------------------------------------------------------------
*
* TkWinSetWindowPos --
*
* Adjust the stacking order of a window relative to a second
* window (or NULL).
*
* Results:
* None.
*
* Side effects:
* Moves the specified window in the stacking order.
*
*----------------------------------------------------------------------
*/
void
TkWinSetWindowPos(hwnd, siblingHwnd, pos)
HWND hwnd; /* Window to restack. */
HWND siblingHwnd; /* Sibling window. */
int pos; /* One of Above or Below. */
{
HWND temp;
/*
* Since Windows does not support Above mode, we place the
* specified window below the sibling and then swap them.
*/
if (siblingHwnd) {
if (pos == Above) {
SetWindowPos(hwnd, siblingHwnd, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
temp = hwnd;
hwnd = siblingHwnd;
siblingHwnd = temp;
}
} else {
siblingHwnd = (pos == Above) ? HWND_TOP : HWND_BOTTOM;
}
SetWindowPos(hwnd, siblingHwnd, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
}
/*
*----------------------------------------------------------------------
*
* TkpWindowWasRecentlyDeleted --
*
* Determines whether we know if the window given as argument was
* recently deleted. Called by the generic code error handler to
* handle BadWindow events.
*
* Results:
* Always 0. We do not keep this information on Windows.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TkpWindowWasRecentlyDeleted(win, dispPtr)
Window win;
TkDisplay *dispPtr;
{
return 0;
}