Import Tk 8.6.6 (as of svn r86089)
This commit is contained in:
Zachary Ware
978
win/tkWinWindow.c
Normal file
978
win/tkWinWindow.c
Normal file
@@ -0,0 +1,978 @@
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/*
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* tkWinWindow.c --
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*
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* Xlib emulation routines for Windows related to creating, displaying
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* and destroying windows.
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*
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* Copyright (c) 1995-1997 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution of
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* this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*/
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#include "tkWinInt.h"
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#include "tkBusy.h"
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typedef struct ThreadSpecificData {
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int initialized; /* 0 means table below needs initializing. */
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Tcl_HashTable windowTable; /* The windowTable maps from HWND to Tk_Window
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* handles. */
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} ThreadSpecificData;
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static Tcl_ThreadDataKey dataKey;
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/*
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* Forward declarations for functions defined in this file:
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*/
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static void NotifyVisibility(XEvent *eventPtr, TkWindow *winPtr);
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/*
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*----------------------------------------------------------------------
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*
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* Tk_AttachHWND --
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*
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* This function binds an HWND and a reflection function to the specified
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* Tk_Window.
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*
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* Results:
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* Returns an X Window that encapsulates the HWND.
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*
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* Side effects:
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* May allocate a new X Window. Also enters the HWND into the global
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* window table.
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*
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*----------------------------------------------------------------------
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*/
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Window
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Tk_AttachHWND(
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Tk_Window tkwin,
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HWND hwnd)
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{
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int new;
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Tcl_HashEntry *entryPtr;
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TkWinDrawable *twdPtr = (TkWinDrawable *) Tk_WindowId(tkwin);
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
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if (!tsdPtr->initialized) {
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Tcl_InitHashTable(&tsdPtr->windowTable, TCL_ONE_WORD_KEYS);
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tsdPtr->initialized = 1;
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}
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/*
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* Allocate a new drawable if necessary. Otherwise, remove the previous
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* HWND from from the window table.
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*/
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if (twdPtr == NULL) {
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twdPtr = ckalloc(sizeof(TkWinDrawable));
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twdPtr->type = TWD_WINDOW;
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twdPtr->window.winPtr = (TkWindow *) tkwin;
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} else if (twdPtr->window.handle != NULL) {
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entryPtr = Tcl_FindHashEntry(&tsdPtr->windowTable,
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(char *)twdPtr->window.handle);
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Tcl_DeleteHashEntry(entryPtr);
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}
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/*
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* Insert the new HWND into the window table.
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*/
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twdPtr->window.handle = hwnd;
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entryPtr = Tcl_CreateHashEntry(&tsdPtr->windowTable, (char *)hwnd, &new);
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Tcl_SetHashValue(entryPtr, tkwin);
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return (Window)twdPtr;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_HWNDToWindow --
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*
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* This function retrieves a Tk_Window from the window table given an
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* HWND.
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*
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* Results:
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* Returns the matching Tk_Window.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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Tk_Window
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Tk_HWNDToWindow(
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HWND hwnd)
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{
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Tcl_HashEntry *entryPtr;
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
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if (!tsdPtr->initialized) {
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Tcl_InitHashTable(&tsdPtr->windowTable, TCL_ONE_WORD_KEYS);
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tsdPtr->initialized = 1;
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}
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entryPtr = Tcl_FindHashEntry(&tsdPtr->windowTable, (char *) hwnd);
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if (entryPtr != NULL) {
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return (Tk_Window) Tcl_GetHashValue(entryPtr);
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}
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return NULL;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_GetHWND --
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*
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* This function extracts the HWND from an X Window.
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*
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* Results:
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* Returns the HWND associated with the Window.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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HWND
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Tk_GetHWND(
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Window window)
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{
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return ((TkWinDrawable *) window)->window.handle;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpPrintWindowId --
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*
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* This routine stores the string representation of the platform
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* dependent window handle for an X Window in the given buffer.
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*
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* Results:
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* Returns the result in the specified buffer.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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void
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TkpPrintWindowId(
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char *buf, /* Pointer to string large enough to hold the
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* hex representation of a pointer. */
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Window window) /* Window to be printed into buffer. */
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{
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HWND hwnd = (window) ? Tk_GetHWND(window) : 0;
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/*
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* Use pointer representation, because Win64 is P64 (*not* LP64). Windows
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* doesn't print the 0x for %p, so we do it.
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* Bug 2026405: cygwin does output 0x for %p so test and recover.
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*/
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sprintf(buf, "0x%p", hwnd);
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if (buf[2] == '0' && buf[3] == 'x') {
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sprintf(buf, "%p", hwnd);
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpScanWindowId --
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*
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* Given a string which represents the platform dependent window handle,
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* produce the X Window id for the window.
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*
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* Results:
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* The return value is normally TCL_OK; in this case *idPtr will be set
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* to the X Window id equivalent to string. If string is improperly
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* formed then TCL_ERROR is returned and an error message will be left in
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* the interp's result. If the number does not correspond to a Tk Window,
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* then *idPtr will be set to None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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int
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TkpScanWindowId(
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Tcl_Interp *interp, /* Interpreter to use for error reporting. */
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const char *string, /* String containing a (possibly signed)
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* integer in a form acceptable to strtol. */
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Window *idPtr) /* Place to store converted result. */
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{
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Tk_Window tkwin;
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union {
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HWND hwnd;
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int number;
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} win;
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/*
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* We want sscanf for the 64-bit check, but if that doesn't work, then
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* Tcl_GetInt manages the error correctly.
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*/
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if (
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#ifdef _WIN64
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(sscanf(string, "0x%p", &win.hwnd) != 1) &&
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#endif
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Tcl_GetInt(interp, string, &win.number) != TCL_OK) {
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return TCL_ERROR;
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}
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tkwin = Tk_HWNDToWindow(win.hwnd);
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if (tkwin) {
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*idPtr = Tk_WindowId(tkwin);
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} else {
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*idPtr = None;
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}
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return TCL_OK;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpMakeWindow --
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*
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* Creates a Windows window object based on the current attributes of the
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* specified TkWindow.
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*
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* Results:
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* Returns a pointer to a new TkWinDrawable cast to a Window.
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*
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* Side effects:
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* Creates a new window.
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*
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*----------------------------------------------------------------------
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*/
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Window
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TkpMakeWindow(
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TkWindow *winPtr,
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Window parent)
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{
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HWND parentWin;
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int style;
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HWND hwnd;
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if (parent != None) {
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parentWin = Tk_GetHWND(parent);
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style = WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
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} else {
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parentWin = NULL;
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style = WS_POPUP | WS_CLIPCHILDREN;
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}
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/*
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* Create the window, then ensure that it is at the top of the stacking
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* order.
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*/
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hwnd = CreateWindowEx(WS_EX_NOPARENTNOTIFY, TK_WIN_CHILD_CLASS_NAME, NULL,
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(DWORD) style, Tk_X(winPtr), Tk_Y(winPtr), Tk_Width(winPtr),
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Tk_Height(winPtr), parentWin, NULL, Tk_GetHINSTANCE(), NULL);
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SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
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SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
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return Tk_AttachHWND((Tk_Window)winPtr, hwnd);
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}
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/*
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*----------------------------------------------------------------------
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*
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* XDestroyWindow --
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*
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* Destroys the given window.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Sends the WM_DESTROY message to the window and then destroys it the
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* Win32 resources associated with the window.
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*
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*----------------------------------------------------------------------
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*/
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int
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XDestroyWindow(
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Display *display,
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Window w)
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{
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Tcl_HashEntry *entryPtr;
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TkWinDrawable *twdPtr = (TkWinDrawable *)w;
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TkWindow *winPtr = TkWinGetWinPtr(w);
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HWND hwnd = Tk_GetHWND(w);
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ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
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Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
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display->request++;
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/*
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* Remove references to the window in the pointer module then release the
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* drawable.
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*/
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TkPointerDeadWindow(winPtr);
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entryPtr = Tcl_FindHashEntry(&tsdPtr->windowTable, (char*)hwnd);
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if (entryPtr != NULL) {
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Tcl_DeleteHashEntry(entryPtr);
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}
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ckfree(twdPtr);
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/*
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* Don't bother destroying the window if we are going to destroy the
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* parent later.
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*/
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if (hwnd != NULL && !(winPtr->flags & TK_DONT_DESTROY_WINDOW)) {
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DestroyWindow(hwnd);
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}
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return Success;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XMapWindow --
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*
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* Cause the given window to become visible.
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*
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* Results:
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* None
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*
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* Side effects:
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* Causes the window state to change, and generates a MapNotify event.
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*
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*----------------------------------------------------------------------
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*/
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int
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XMapWindow(
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Display *display,
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Window w)
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{
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XEvent event;
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TkWindow *parentPtr;
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TkWindow *winPtr = TkWinGetWinPtr(w);
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display->request++;
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ShowWindow(Tk_GetHWND(w), SW_SHOWNORMAL);
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winPtr->flags |= TK_MAPPED;
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/*
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* Check to see if this window is visible now. If all of the parent
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* windows up to the first toplevel are mapped, then this window and its
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* mapped children have just become visible.
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*/
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if (!(winPtr->flags & TK_TOP_HIERARCHY)) {
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for (parentPtr = winPtr->parentPtr; ;
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parentPtr = parentPtr->parentPtr) {
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if ((parentPtr == NULL) || !(parentPtr->flags & TK_MAPPED)) {
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return Success;
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}
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if (parentPtr->flags & TK_TOP_HIERARCHY) {
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break;
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}
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}
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} else {
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event.type = MapNotify;
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event.xmap.serial = display->request;
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event.xmap.send_event = False;
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event.xmap.display = display;
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event.xmap.event = winPtr->window;
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event.xmap.window = winPtr->window;
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event.xmap.override_redirect = winPtr->atts.override_redirect;
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Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
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}
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/*
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* Generate VisibilityNotify events for this window and its mapped
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* children.
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*/
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event.type = VisibilityNotify;
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event.xvisibility.serial = display->request;
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event.xvisibility.send_event = False;
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event.xvisibility.display = display;
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event.xvisibility.window = winPtr->window;
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event.xvisibility.state = VisibilityUnobscured;
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NotifyVisibility(&event, winPtr);
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return Success;
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}
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/*
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*----------------------------------------------------------------------
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*
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* NotifyVisibility --
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*
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* This function recursively notifies the mapped children of the
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* specified window of a change in visibility. Note that we don't
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* properly report the visibility state, since Windows does not provide
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* that info. The eventPtr argument must point to an event that has been
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* completely initialized except for the window slot.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Generates lots of events.
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*
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*----------------------------------------------------------------------
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*/
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static void
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NotifyVisibility(
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XEvent *eventPtr, /* Initialized VisibilityNotify event. */
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TkWindow *winPtr) /* Window to notify. */
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{
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if (winPtr->atts.event_mask & VisibilityChangeMask) {
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eventPtr->xvisibility.window = winPtr->window;
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Tk_QueueWindowEvent(eventPtr, TCL_QUEUE_TAIL);
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}
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for (winPtr = winPtr->childList; winPtr != NULL;
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winPtr = winPtr->nextPtr) {
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if (winPtr->flags & TK_MAPPED) {
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NotifyVisibility(eventPtr, winPtr);
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}
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||||
}
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}
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/*
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||||
*----------------------------------------------------------------------
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||||
*
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* XUnmapWindow --
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*
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* Cause the given window to become invisible.
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||||
*
|
||||
* Results:
|
||||
* None
|
||||
*
|
||||
* Side effects:
|
||||
* Causes the window state to change, and generates an UnmapNotify event.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
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||||
int
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||||
XUnmapWindow(
|
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Display *display,
|
||||
Window w)
|
||||
{
|
||||
XEvent event;
|
||||
TkWindow *winPtr = TkWinGetWinPtr(w);
|
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display->request++;
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||||
/*
|
||||
* Bug fix: Don't short circuit this routine based on TK_MAPPED because it
|
||||
* will be cleared before XUnmapWindow is called.
|
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*/
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||||
ShowWindow(Tk_GetHWND(w), SW_HIDE);
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winPtr->flags &= ~TK_MAPPED;
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||||
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if (winPtr->flags & TK_WIN_MANAGED) {
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event.type = UnmapNotify;
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||||
event.xunmap.serial = display->request;
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event.xunmap.send_event = False;
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event.xunmap.display = display;
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event.xunmap.event = winPtr->window;
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event.xunmap.window = winPtr->window;
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event.xunmap.from_configure = False;
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Tk_HandleEvent(&event);
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}
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return Success;
|
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}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* XMoveResizeWindow --
|
||||
*
|
||||
* Move and resize a window relative to its parent.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Repositions and resizes the specified window.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XMoveResizeWindow(
|
||||
Display *display,
|
||||
Window w,
|
||||
int x, int y, /* Position relative to parent. */
|
||||
unsigned int width, unsigned int height)
|
||||
{
|
||||
display->request++;
|
||||
MoveWindow(Tk_GetHWND(w), x, y, (int) width, (int) height, TRUE);
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* XMoveWindow --
|
||||
*
|
||||
* Move a window relative to its parent.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Repositions the specified window.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XMoveWindow(
|
||||
Display *display,
|
||||
Window w,
|
||||
int x, int y) /* Position relative to parent */
|
||||
{
|
||||
TkWindow *winPtr = TkWinGetWinPtr(w);
|
||||
|
||||
display->request++;
|
||||
|
||||
MoveWindow(Tk_GetHWND(w), x, y, winPtr->changes.width,
|
||||
winPtr->changes.height, TRUE);
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* XResizeWindow --
|
||||
*
|
||||
* Resize a window.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Resizes the specified window.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XResizeWindow(
|
||||
Display *display,
|
||||
Window w,
|
||||
unsigned int width, unsigned int height)
|
||||
{
|
||||
TkWindow *winPtr = TkWinGetWinPtr(w);
|
||||
|
||||
display->request++;
|
||||
|
||||
MoveWindow(Tk_GetHWND(w), winPtr->changes.x, winPtr->changes.y, (int)width,
|
||||
(int)height, TRUE);
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* XRaiseWindow --
|
||||
*
|
||||
* Change the stacking order of a window.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Changes the stacking order of the specified window.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XRaiseWindow(
|
||||
Display *display,
|
||||
Window w)
|
||||
{
|
||||
HWND window = Tk_GetHWND(w);
|
||||
|
||||
display->request++;
|
||||
SetWindowPos(window, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XConfigureWindow(
|
||||
Display *display,
|
||||
Window w,
|
||||
unsigned int valueMask,
|
||||
XWindowChanges *values)
|
||||
{
|
||||
TkWindow *winPtr = TkWinGetWinPtr(w);
|
||||
HWND hwnd = Tk_GetHWND(w);
|
||||
|
||||
display->request++;
|
||||
|
||||
/*
|
||||
* Change the shape and/or position of the window.
|
||||
*/
|
||||
|
||||
if (valueMask & (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 (valueMask & CWStackMode) {
|
||||
HWND sibling;
|
||||
|
||||
if ((valueMask & CWSibling) && (values->sibling != None)) {
|
||||
sibling = Tk_GetHWND(values->sibling);
|
||||
} else {
|
||||
sibling = NULL;
|
||||
}
|
||||
TkWinSetWindowPos(hwnd, sibling, values->stack_mode);
|
||||
}
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* XClearWindow --
|
||||
*
|
||||
* Clears the entire window to the current background color.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Erases the current contents of the window.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XClearWindow(
|
||||
Display *display,
|
||||
Window w)
|
||||
{
|
||||
RECT rc;
|
||||
HBRUSH brush;
|
||||
HPALETTE oldPalette, palette;
|
||||
TkWindow *winPtr;
|
||||
HWND hwnd = Tk_GetHWND(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);
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int
|
||||
XChangeWindowAttributes(
|
||||
Display *display,
|
||||
Window w,
|
||||
unsigned long valueMask,
|
||||
XSetWindowAttributes* attributes)
|
||||
{
|
||||
if (valueMask & CWCursor) {
|
||||
XDefineCursor(display, w, attributes->cursor);
|
||||
}
|
||||
return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* 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 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);
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* TkpShowBusyWindow --
|
||||
*
|
||||
* Makes a busy window "appear".
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Arranges for the busy window to start intercepting events and the
|
||||
* cursor to change to the configured "hey, I'm busy!" setting.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
void
|
||||
TkpShowBusyWindow(
|
||||
TkBusy busy)
|
||||
{
|
||||
Busy *busyPtr = (Busy *) busy;
|
||||
HWND hWnd;
|
||||
POINT point;
|
||||
Display *display;
|
||||
Window window;
|
||||
|
||||
if (busyPtr->tkBusy != NULL) {
|
||||
Tk_MapWindow(busyPtr->tkBusy);
|
||||
window = Tk_WindowId(busyPtr->tkBusy);
|
||||
display = Tk_Display(busyPtr->tkBusy);
|
||||
hWnd = Tk_GetHWND(window);
|
||||
display->request++;
|
||||
SetWindowPos(hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
|
||||
}
|
||||
|
||||
/*
|
||||
* Under Win32, cursors aren't associated with windows. Tk fakes this by
|
||||
* watching Motion events on its windows. So Tk will automatically change
|
||||
* the cursor when the pointer enters the Busy window. But Windows does
|
||||
* not immediately change the cursor; it waits for the cursor position to
|
||||
* change or a system call. We need to change the cursor before the
|
||||
* application starts processing, so set the cursor position redundantly
|
||||
* back to the current position.
|
||||
*/
|
||||
|
||||
GetCursorPos(&point);
|
||||
SetCursorPos(point.x, point.y);
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* TkpHideBusyWindow --
|
||||
*
|
||||
* Makes a busy window "disappear".
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Arranges for the busy window to stop intercepting events, and the
|
||||
* cursor to change back to its normal setting.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
void
|
||||
TkpHideBusyWindow(
|
||||
TkBusy busy)
|
||||
{
|
||||
Busy *busyPtr = (Busy *) busy;
|
||||
POINT point;
|
||||
|
||||
if (busyPtr->tkBusy != NULL) {
|
||||
Tk_UnmapWindow(busyPtr->tkBusy);
|
||||
}
|
||||
|
||||
/*
|
||||
* Under Win32, cursors aren't associated with windows. Tk fakes this by
|
||||
* watching Motion events on its windows. So Tk will automatically change
|
||||
* the cursor when the pointer enters the Busy window. But Windows does
|
||||
* not immediately change the cursor: it waits for the cursor position to
|
||||
* change or a system call. We need to change the cursor before the
|
||||
* application starts processing, so set the cursor position redundantly
|
||||
* back to the current position.
|
||||
*/
|
||||
|
||||
GetCursorPos(&point);
|
||||
SetCursorPos(point.x, point.y);
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* TkpMakeTransparentWindowExist --
|
||||
*
|
||||
* Construct the platform-specific resources for a transparent window.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Moves the specified window in the stacking order.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
void
|
||||
TkpMakeTransparentWindowExist(
|
||||
Tk_Window tkwin, /* Token for window. */
|
||||
Window parent) /* Parent window. */
|
||||
{
|
||||
TkWindow *winPtr = (TkWindow *) tkwin;
|
||||
HWND hParent = (HWND) parent, hWnd;
|
||||
int style = WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
|
||||
DWORD exStyle = WS_EX_TRANSPARENT | WS_EX_TOPMOST;
|
||||
|
||||
hWnd = CreateWindowEx(exStyle, TK_WIN_CHILD_CLASS_NAME, NULL, style,
|
||||
Tk_X(tkwin), Tk_Y(tkwin), Tk_Width(tkwin), Tk_Height(tkwin),
|
||||
hParent, NULL, Tk_GetHINSTANCE(), NULL);
|
||||
winPtr->window = Tk_AttachHWND(tkwin, hWnd);
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* TkpCreateBusy --
|
||||
*
|
||||
* Construct the platform-specific parts of a busy window. Note that this
|
||||
* postpones the actual creation of the window resource until later.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Sets up part of the busy window structure.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
void
|
||||
TkpCreateBusy(
|
||||
Tk_FakeWin *winPtr,
|
||||
Tk_Window tkRef,
|
||||
Window *parentPtr,
|
||||
Tk_Window tkParent,
|
||||
TkBusy busy)
|
||||
{
|
||||
Busy *busyPtr = (Busy *) busy;
|
||||
|
||||
if (winPtr->flags & TK_REPARENTED) {
|
||||
/*
|
||||
* This works around a bug in the implementation of menubars for
|
||||
* non-Macintosh window systems (Win32 and X11). Tk doesn't reset the
|
||||
* pointers to the parent window when the menu is reparented
|
||||
* (winPtr->parentPtr points to the wrong window). We get around this
|
||||
* by determining the parent via the native API calls.
|
||||
*/
|
||||
|
||||
HWND hWnd = GetParent(Tk_GetHWND(Tk_WindowId(tkRef)));
|
||||
RECT rect;
|
||||
|
||||
if (GetWindowRect(hWnd, &rect)) {
|
||||
busyPtr->width = rect.right - rect.left;
|
||||
busyPtr->height = rect.bottom - rect.top;
|
||||
}
|
||||
} else {
|
||||
*parentPtr = Tk_WindowId(tkParent);
|
||||
*parentPtr = (Window) Tk_GetHWND(*parentPtr);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Local Variables:
|
||||
* mode: c
|
||||
* c-basic-offset: 4
|
||||
* fill-column: 78
|
||||
* End:
|
||||
*/
|
||||
Reference in New Issue
Block a user