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-rw-r--r--tk8.6/win/tkWinWindow.c1017
1 files changed, 1017 insertions, 0 deletions
diff --git a/tk8.6/win/tkWinWindow.c b/tk8.6/win/tkWinWindow.c
new file mode 100644
index 0000000..385e72b
--- /dev/null
+++ b/tk8.6/win/tkWinWindow.c
@@ -0,0 +1,1017 @@
+/*
+ * tkWinWindow.c --
+ *
+ * Xlib emulation routines for Windows related to creating, displaying
+ * and destroying windows.
+ *
+ * Copyright (c) 1995-1997 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tkWinInt.h"
+#include "tkBusy.h"
+
+typedef struct ThreadSpecificData {
+ int initialized; /* 0 means table below needs initializing. */
+ Tcl_HashTable windowTable; /* The windowTable maps from HWND to Tk_Window
+ * handles. */
+} ThreadSpecificData;
+static Tcl_ThreadDataKey dataKey;
+
+/*
+ * Forward declarations for functions defined in this file:
+ */
+
+static void NotifyVisibility(XEvent *eventPtr, TkWindow *winPtr);
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_AttachHWND --
+ *
+ * This function binds an HWND and a reflection function 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(
+ Tk_Window tkwin,
+ HWND hwnd)
+{
+ int new;
+ Tcl_HashEntry *entryPtr;
+ TkWinDrawable *twdPtr = (TkWinDrawable *) Tk_WindowId(tkwin);
+ ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+ Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
+
+ if (!tsdPtr->initialized) {
+ Tcl_InitHashTable(&tsdPtr->windowTable, TCL_ONE_WORD_KEYS);
+ tsdPtr->initialized = 1;
+ }
+
+ /*
+ * Allocate a new drawable if necessary. Otherwise, remove the previous
+ * HWND from from the window table.
+ */
+
+ if (twdPtr == NULL) {
+ twdPtr = ckalloc(sizeof(TkWinDrawable));
+ twdPtr->type = TWD_WINDOW;
+ twdPtr->window.winPtr = (TkWindow *) tkwin;
+ } else if (twdPtr->window.handle != NULL) {
+ entryPtr = Tcl_FindHashEntry(&tsdPtr->windowTable,
+ (char *)twdPtr->window.handle);
+ Tcl_DeleteHashEntry(entryPtr);
+ }
+
+ /*
+ * Insert the new HWND into the window table.
+ */
+
+ twdPtr->window.handle = hwnd;
+ entryPtr = Tcl_CreateHashEntry(&tsdPtr->windowTable, (char *)hwnd, &new);
+ Tcl_SetHashValue(entryPtr, 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)
+{
+ Tcl_HashEntry *entryPtr;
+ ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+ Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
+
+ if (!tsdPtr->initialized) {
+ Tcl_InitHashTable(&tsdPtr->windowTable, TCL_ONE_WORD_KEYS);
+ tsdPtr->initialized = 1;
+ }
+ entryPtr = Tcl_FindHashEntry(&tsdPtr->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)
+{
+ return ((TkWinDrawable *) window)->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(
+ 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;
+
+ /*
+ * Use pointer representation, because Win64 is P64 (*not* LP64). Windows
+ * doesn't print the 0x for %p, so we do it.
+ * Bug 2026405: cygwin does output 0x for %p so test and recover.
+ */
+
+ sprintf(buf, "0x%p", hwnd);
+ if (buf[2] == '0' && buf[3] == 'x') {
+ sprintf(buf, "%p", 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
+ * the interp's result. If the number does not correspond to a Tk Window,
+ * then *idPtr will be set to None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TkpScanWindowId(
+ Tcl_Interp *interp, /* Interpreter to use for error reporting. */
+ const char *string, /* String containing a (possibly signed)
+ * integer in a form acceptable to strtol. */
+ Window *idPtr) /* Place to store converted result. */
+{
+ Tk_Window tkwin;
+ union {
+ HWND hwnd;
+ int number;
+ } win;
+
+ /*
+ * We want sscanf for the 64-bit check, but if that doesn't work, then
+ * Tcl_GetInt manages the error correctly.
+ */
+
+ if (
+#ifdef _WIN64
+ (sscanf(string, "0x%p", &win.hwnd) != 1) &&
+#endif
+ Tcl_GetInt(interp, string, &win.number) != TCL_OK) {
+ return TCL_ERROR;
+ }
+
+ tkwin = Tk_HWNDToWindow(win.hwnd);
+ 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(
+ 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,
+ (DWORD) 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.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XDestroyWindow(
+ Display *display,
+ Window w)
+{
+ Tcl_HashEntry *entryPtr;
+ TkWinDrawable *twdPtr = (TkWinDrawable *)w;
+ TkWindow *winPtr = TkWinGetWinPtr(w);
+ HWND hwnd = Tk_GetHWND(w);
+ ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+ Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
+
+ display->request++;
+
+ /*
+ * Remove references to the window in the pointer module then release the
+ * drawable.
+ */
+
+ TkPointerDeadWindow(winPtr);
+
+ entryPtr = Tcl_FindHashEntry(&tsdPtr->windowTable, (char*)hwnd);
+ if (entryPtr != NULL) {
+ Tcl_DeleteHashEntry(entryPtr);
+ }
+
+ ckfree(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);
+ }
+ return Success;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XMapWindow --
+ *
+ * Cause the given window to become visible.
+ *
+ * Results:
+ * None
+ *
+ * Side effects:
+ * Causes the window state to change, and generates a MapNotify event.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XMapWindow(
+ Display *display,
+ Window w)
+{
+ XEvent event;
+ TkWindow *parentPtr;
+ TkWindow *winPtr = TkWinGetWinPtr(w);
+
+ display->request++;
+
+ ShowWindow(Tk_GetHWND(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_HIERARCHY)) {
+ for (parentPtr = winPtr->parentPtr; ;
+ parentPtr = parentPtr->parentPtr) {
+ if ((parentPtr == NULL) || !(parentPtr->flags & TK_MAPPED)) {
+ return Success;
+ }
+ if (parentPtr->flags & TK_TOP_HIERARCHY) {
+ 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);
+ return Success;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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(
+ 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.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XUnmapWindow(
+ 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(Tk_GetHWND(w), SW_HIDE);
+ winPtr->flags &= ~TK_MAPPED;
+
+ if (winPtr->flags & TK_WIN_MANAGED) {
+ 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);
+ }
+ return Success;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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, XLowerWindow --
+ *
+ * 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;
+}
+
+int
+XLowerWindow(
+ Display *display,
+ Window w)
+{
+ HWND window = Tk_GetHWND(w);
+
+ display->request++;
+ SetWindowPos(window, HWND_BOTTOM, 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;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XReparentWindow --
+ *
+ * TODO: currently placeholder to satisfy Xlib stubs.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * TODO.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XReparentWindow(
+ Display *display,
+ Window w,
+ Window parent,
+ int x,
+ int y)
+{
+ return BadWindow;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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:
+ */
generated by cgit v0.12 at 2024-09-18 17:28:05 (GMT)