/* * tkMacOSXSubwindows.c -- * * Implements subwindows for the macintosh version of Tk. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * Copyright 2001, Apple Computer, Inc. * Copyright (c) 2006-2007 Daniel A. Steffen * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tkMacOSXSubwindows.c,v 1.2.2.21 2007/11/09 06:26:56 das Exp $ */ #include "tkMacOSXPrivate.h" #include "tkMacOSXDebug.h" #include "tkMacOSXWm.h" /* #ifdef TK_MAC_DEBUG #define TK_MAC_DEBUG_CLIP_REGIONS #endif */ /* * Prototypes for functions used only in this file. */ static void MoveResizeWindow(MacDrawable *macWin); static void GenerateConfigureNotify(TkWindow *winPtr, int includeWin); static void UpdateOffsets(TkWindow *winPtr, int deltaX, int deltaY); /* *---------------------------------------------------------------------- * * XDestroyWindow -- * * Dealocates the given X Window. * * Results: * The window id is returned. * * Side effects: * None. * *---------------------------------------------------------------------- */ void XDestroyWindow( Display* display, /* Display. */ Window window) /* Window. */ { MacDrawable *macWin = (MacDrawable *) window; /* * Remove any dangling pointers that may exist if * the window we are deleting is being tracked by * the grab code. */ TkPointerDeadWindow(macWin->winPtr); macWin->toplevel->referenceCount--; if (Tk_IsTopLevel(macWin->winPtr)) { WindowRef winRef; /* * We are relying on the Activate Mac OS event to pass the * focus away from a window that is getting Destroyed to the * Front non-floating window. BUT we don't get activate events * when a floating window is destroyed - since the front non-floating * window doesn't in fact get activated... So maybe we can check here * and if we are destroying a floating window, we can pass the focus * back to the front non-floating window... */ if (macWin->grafPtr != NULL) { TkWindow *focusPtr = TkGetFocusWin(macWin->winPtr); if (focusPtr == NULL || (focusPtr->mainPtr->winPtr == macWin->winPtr)) { winRef = TkMacOSXDrawableWindow(window); if (TkpIsWindowFloating (winRef)) { Window window; window = TkMacOSXGetXWindow(ActiveNonFloatingWindow()); if (window != None) { TkMacOSXGenerateFocusEvent(window, 1); } } } } if (macWin->visRgn) { CFRelease(macWin->visRgn); } if (macWin->aboveVisRgn) { CFRelease(macWin->aboveVisRgn); } /* * Delete the Mac window and remove it from the windowTable. * The window could be NULL if the window was never mapped. * However, we don't do this for embedded windows, they don't * go in the window list, and they do not own their portPtr's. */ if (!(Tk_IsEmbedded(macWin->winPtr))) { WindowRef winRef = TkMacOSXDrawableWindow(window); if (winRef) { TkMacOSXWindowList *listPtr, *prevPtr; TkMacOSXUnregisterMacWindow(winRef); DisposeWindow(winRef); for (listPtr = tkMacOSXWindowListPtr, prevPtr = NULL; tkMacOSXWindowListPtr != NULL; prevPtr = listPtr, listPtr = listPtr->nextPtr) { if (listPtr->winPtr == macWin->winPtr) { if (prevPtr == NULL) { tkMacOSXWindowListPtr = listPtr->nextPtr; } else { prevPtr->nextPtr = listPtr->nextPtr; } ckfree((char *) listPtr); break; } } } } macWin->grafPtr = NULL; /* * Delay deletion of a toplevel data structure untill all * children have been deleted. */ if (macWin->toplevel->referenceCount == 0) { ckfree((char *) macWin->toplevel); } } else { TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); if (macWin->winPtr->parentPtr != NULL) { TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr->parentPtr); } if (macWin->visRgn) { CFRelease(macWin->visRgn); } if (macWin->aboveVisRgn) { CFRelease(macWin->aboveVisRgn); } if (macWin->toplevel->referenceCount == 0) { ckfree((char *) macWin->toplevel); } ckfree((char *) macWin); } } /* *---------------------------------------------------------------------- * * XMapWindow -- * * Map the given X Window to the screen. See X window documentation * for more details. * * Results: * None. * * Side effects: * The subwindow or toplevel may appear on the screen. * *---------------------------------------------------------------------- */ void XMapWindow( Display* display, /* Display. */ Window window) /* Window. */ { MacDrawable *macWin = (MacDrawable *) window; XEvent event; /* * Under certain situations it's possible for this function to be * called before the toplevel window it's associated with has actually * been mapped. In that case we need to create the real Macintosh * window now as this function as well as other X functions assume that * the portPtr is valid. */ if (!TkMacOSXHostToplevelExists(macWin->toplevel->winPtr)) { TkMacOSXMakeRealWindowExist(macWin->toplevel->winPtr); } display->request++; macWin->winPtr->flags |= TK_MAPPED; if (Tk_IsTopLevel(macWin->winPtr)) { if (!Tk_IsEmbedded(macWin->winPtr)) { /* * XXX This should be ShowSheetWindow for kSheetWindowClass * XXX windows that have a wmPtr->master parent set. */ WindowRef wRef = TkMacOSXDrawableWindow(window); if ((macWin->winPtr->wmInfoPtr->macClass == kSheetWindowClass) && (macWin->winPtr->wmInfoPtr->master != None)) { ShowSheetWindow(wRef, TkMacOSXDrawableWindow( macWin->winPtr->wmInfoPtr->master)); } else { ShowWindow(wRef); } } TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr); /* * We only need to send the MapNotify event * for toplevel windows. */ event.xany.serial = display->request; event.xany.send_event = False; event.xany.display = display; event.xmap.window = window; event.xmap.type = MapNotify; event.xmap.event = window; event.xmap.override_redirect = macWin->winPtr->atts.override_redirect; Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL); } else { /* * Generate damage for that area of the window */ TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr->parentPtr); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); } } /* *---------------------------------------------------------------------- * * XUnmapWindow -- * * Unmap the given X Window to the screen. See X window * documentation for more details. * * Results: * None. * * Side effects: * The subwindow or toplevel may be removed from the screen. * *---------------------------------------------------------------------- */ void XUnmapWindow( Display* display, /* Display. */ Window window) /* Window. */ { MacDrawable *macWin = (MacDrawable *) window; XEvent event; display->request++; macWin->winPtr->flags &= ~TK_MAPPED; if (Tk_IsTopLevel(macWin->winPtr)) { if (!Tk_IsEmbedded(macWin->winPtr) && macWin->winPtr->wmInfoPtr->hints.initial_state != IconicState) { /* * XXX This should be HideSheetWindow for kSheetWindowClass * XXX windows that have a wmPtr->master parent set. */ WindowRef wref = TkMacOSXDrawableWindow(window); if ((macWin->winPtr->wmInfoPtr->macClass == kSheetWindowClass) && (macWin->winPtr->wmInfoPtr->master != None)) { HideSheetWindow(wref); } else { HideWindow(wref); } } TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr); /* * We only need to send the UnmapNotify event * for toplevel windows. */ event.xany.serial = display->request; event.xany.send_event = False; event.xany.display = display; event.xunmap.type = UnmapNotify; event.xunmap.window = window; event.xunmap.event = window; event.xunmap.from_configure = false; Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL); } else { /* * Generate damage for that area of the window. */ TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr->parentPtr); } } /* *---------------------------------------------------------------------- * * XResizeWindow -- * * Resize a given X window. See X windows documentation for * further details. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void XResizeWindow( Display* display, /* Display. */ Window window, /* Window. */ unsigned int width, unsigned int height) { MacDrawable *macWin = (MacDrawable *) window; display->request++; if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { WindowRef w = TkMacOSXDrawableWindow(window); if (w) { Rect bounds; ChkErr(GetWindowBounds, w, kWindowContentRgn, &bounds); bounds.right = bounds.left + width; bounds.bottom = bounds.top + height; ChkErr(SetWindowBounds, w, kWindowContentRgn, &bounds); } } else { MoveResizeWindow(macWin); } } /* *---------------------------------------------------------------------- * * XMoveResizeWindow -- * * Move or resize a given X window. See X windows documentation * for further details. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void XMoveResizeWindow( Display* display, /* Display. */ Window window, /* Window. */ int x, int y, unsigned int width, unsigned int height) { MacDrawable * macWin = (MacDrawable *) window; display->request++; if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { WindowRef w = TkMacOSXDrawableWindow(window); if (w) { Rect bounds; bounds.left = x + macWin->winPtr->wmInfoPtr->xInParent; bounds.right = bounds.left + width; bounds.top = y + macWin->winPtr->wmInfoPtr->yInParent; bounds.bottom = bounds.top + height; ChkErr(SetWindowBounds, w, kWindowContentRgn, &bounds); } } else { MoveResizeWindow(macWin); } } /* *---------------------------------------------------------------------- * * XMoveWindow -- * * Move a given X window. See X windows documentation for further * details. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void XMoveWindow( Display* display, /* Display. */ Window window, /* Window. */ int x, int y) { MacDrawable *macWin = (MacDrawable *) window; display->request++; if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { WindowRef w = TkMacOSXDrawableWindow(window); if (w) { ChkErr(MoveWindowStructure, w, x, y); } } else { MoveResizeWindow(macWin); } } /* *---------------------------------------------------------------------- * * MoveResizeWindow -- * * Helper proc for XResizeWindow, XMoveResizeWindow and XMoveWindow. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ static void MoveResizeWindow( MacDrawable *macWin) { int deltaX = 0, deltaY = 0, parentBorderwidth = 0; MacDrawable *macParent = NULL; CGrafPtr destPort = TkMacOSXGetDrawablePort((Drawable) macWin); /* * Find the Parent window, for an embedded window it will be its container. */ if (Tk_IsEmbedded(macWin->winPtr)) { TkWindow *contWinPtr = TkpGetOtherWindow(macWin->winPtr); if (contWinPtr) { macParent = contWinPtr->privatePtr; } else { /* * Here we should handle out of process embedding. * At this point, we are assuming that the changes.x,y is not * maintained, if you need the info get it from Tk_GetRootCoords, * and that the toplevel sits at 0,0 when it is drawn. */ } } else { /* * TODO: update all xOff & yOffs */ macParent = macWin->winPtr->parentPtr->privatePtr; parentBorderwidth = macWin->winPtr->parentPtr->changes.border_width; } if (macParent) { deltaX = macParent->xOff + parentBorderwidth + macWin->winPtr->changes.x - macWin->xOff; deltaY = macParent->yOff + parentBorderwidth + macWin->winPtr->changes.y - macWin->yOff; } if (destPort) { TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); if (macParent) { TkMacOSXInvalClipRgns((Tk_Window) macParent->winPtr); } } UpdateOffsets(macWin->winPtr, deltaX, deltaY); if (destPort) { TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); } GenerateConfigureNotify(macWin->winPtr, 0); } /* *---------------------------------------------------------------------- * * GenerateConfigureNotify -- * * Generates ConfigureNotify events for all the child widgets * of the widget passed in the winPtr parameter. If includeWin * is true, also generates ConfigureNotify event for the * widget itself. * * Results: * None. * * Side effects: * ConfigureNotify events will be posted. * *---------------------------------------------------------------------- */ static void GenerateConfigureNotify (TkWindow *winPtr, int includeWin) { TkWindow *childPtr; for (childPtr = winPtr->childList; childPtr != NULL; childPtr = childPtr->nextPtr) { if (!Tk_IsMapped(childPtr) || Tk_IsTopLevel(childPtr)) { continue; } GenerateConfigureNotify(childPtr, 1); } if (includeWin) { TkDoConfigureNotify(winPtr); } } /* *---------------------------------------------------------------------- * * XRaiseWindow -- * * Change the stacking order of a window. * * Results: * None. * * Side effects: * Changes the stacking order of the specified window. * *---------------------------------------------------------------------- */ void XRaiseWindow( Display* display, /* Display. */ Window window) /* Window. */ { MacDrawable *macWin = (MacDrawable *) window; display->request++; if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { TkWmRestackToplevel(macWin->winPtr, Above, NULL); } else { /* * TODO: this should generate damage */ } } #if 0 /* *---------------------------------------------------------------------- * * XLowerWindow -- * * Change the stacking order of a window. * * Results: * None. * * Side effects: * Changes the stacking order of the specified window. * *---------------------------------------------------------------------- */ void XLowerWindow( Display* display, /* Display. */ Window window) /* Window. */ { MacDrawable *macWin = (MacDrawable *) window; display->request++; if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { TkWmRestackToplevel(macWin->winPtr, Below, NULL); } else { /* * TODO: this should generate damage */ } } #endif /* *---------------------------------------------------------------------- * * 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* display, /* Display. */ Window w, /* Window. */ unsigned int value_mask, XWindowChanges* values) { MacDrawable *macWin = (MacDrawable *) w; TkWindow *winPtr = macWin->winPtr; display->request++; /* * Change the shape and/or position of the window. */ if (value_mask & (CWX|CWY|CWWidth|CWHeight)) { XMoveResizeWindow(display, w, winPtr->changes.x, winPtr->changes.y, winPtr->changes.width, winPtr->changes.height); } /* * Change the stacking order of the window. Tk actuall keeps all * the information we need for stacking order. All we need to do * is make sure the clipping regions get updated and generate damage * that will ensure things get drawn correctly. */ if (value_mask & CWStackMode) { Rect bounds; WindowRef wRef = TkMacOSXDrawableWindow(w); if (wRef) { TkMacOSXInvalClipRgns((Tk_Window) winPtr->parentPtr); TkMacOSXWinBounds(winPtr, &bounds); InvalWindowRect(wRef, &bounds); } } /* TkGenWMMoveRequestEvent(macWin->winPtr, macWin->winPtr->changes.x, macWin->winPtr->changes.y); */ } /* *---------------------------------------------------------------------- * * TkMacOSXUpdateClipRgn -- * * This function updates the cliping regions for a given window * and all of its children. Once updated the TK_CLIP_INVALID flag * in the subwindow data structure is unset. The TK_CLIP_INVALID * flag should always be unset before any drawing is attempted. * * Results: * None. * * Side effects: * The clip regions for the window and its children are updated. * *---------------------------------------------------------------------- */ void TkMacOSXUpdateClipRgn( TkWindow *winPtr) { MacDrawable *macWin; if (winPtr == NULL) { return; } macWin = winPtr->privatePtr; if (macWin && macWin->flags & TK_CLIP_INVALID) { TkWindow *win2Ptr; if (Tk_IsMapped(winPtr)) { int rgnChanged = 0; CGRect bounds; HIMutableShapeRef rgn; /* * Start with a region defined by the window bounds. */ TkMacOSXWinCGBounds(winPtr, &bounds); rgn = TkMacOSXHIShapeCreateMutableWithRect(&bounds); /* * Clip away the area of any windows that may obscure this * window. * For a non-toplevel window, first, clip to the parents visible * clip region. * Second, clip away any siblings that are higher in the * stacking order. * For an embedded toplevel, just clip to the container's visible * clip region. Remember, we only allow one contained window * in a frame, and don't support any other widgets in the frame * either. This is not currently enforced, however. */ if (!Tk_IsTopLevel(winPtr)) { TkMacOSXUpdateClipRgn(winPtr->parentPtr); if (winPtr->parentPtr) { ChkErr(HIShapeIntersect, winPtr->parentPtr->privatePtr->aboveVisRgn, rgn, rgn); } win2Ptr = winPtr; while ((win2Ptr = win2Ptr->nextPtr)) { if (Tk_IsTopLevel(win2Ptr) || !Tk_IsMapped(win2Ptr)) { continue; } TkMacOSXWinCGBounds(win2Ptr, &bounds); ChkErr(TkMacOSHIShapeDifferenceWithRect, rgn, &bounds); } } else if (Tk_IsEmbedded(winPtr)) { win2Ptr = TkpGetOtherWindow(winPtr); if (win2Ptr) { TkMacOSXUpdateClipRgn(win2Ptr); ChkErr(HIShapeIntersect, win2Ptr->privatePtr->aboveVisRgn, rgn, rgn); } else if (tkMacOSXEmbedHandler != NULL) { HIShapeRef visRgn; TkMacOSXCheckTmpQdRgnEmpty(); tkMacOSXEmbedHandler->getClipProc((Tk_Window) winPtr, tkMacOSXtmpQdRgn); visRgn = HIShapeCreateWithQDRgn(tkMacOSXtmpQdRgn); SetEmptyRgn(tkMacOSXtmpQdRgn); ChkErr(HIShapeIntersect, visRgn, rgn, rgn); } /* * TODO: Here we should handle out of process embedding. */ } else if (winPtr->wmInfoPtr->attributes & kWindowResizableAttribute) { HIViewRef growBoxView; OSErr err = HIViewFindByID(HIViewGetRoot( TkMacOSXDrawableWindow(winPtr->window)), kHIViewWindowGrowBoxID, &growBoxView); if (err == noErr) { ChkErr(HIViewGetFrame, growBoxView, &bounds); bounds = CGRectOffset(bounds, -winPtr->wmInfoPtr->xInParent, -winPtr->wmInfoPtr->yInParent); ChkErr(TkMacOSHIShapeDifferenceWithRect, rgn, &bounds); } } macWin->aboveVisRgn = HIShapeCreateCopy(rgn); /* * The final clip region is the aboveVis region (or visible * region) minus all the children of this window. * If the window is a container, we must also subtract the region * of the embedded window. */ win2Ptr = winPtr->childList; while (win2Ptr) { if (Tk_IsTopLevel(win2Ptr) || !Tk_IsMapped(win2Ptr)) { win2Ptr = win2Ptr->nextPtr; continue; } TkMacOSXWinCGBounds(win2Ptr, &bounds); ChkErr(TkMacOSHIShapeDifferenceWithRect, rgn, &bounds); rgnChanged = 1; win2Ptr = win2Ptr->nextPtr; } if (Tk_IsContainer(winPtr)) { win2Ptr = TkpGetOtherWindow(winPtr); if (win2Ptr) { if (Tk_IsMapped(win2Ptr)) { TkMacOSXWinCGBounds(win2Ptr, &bounds); ChkErr(TkMacOSHIShapeDifferenceWithRect, rgn, &bounds); rgnChanged = 1; } } /* * TODO: Here we should handle out of process embedding. */ } if (rgnChanged) { HIShapeRef diffRgn = HIShapeCreateDifference( macWin->aboveVisRgn, rgn); if (!HIShapeIsEmpty(diffRgn)) { macWin->visRgn = HIShapeCreateCopy(rgn); } CFRelease(diffRgn); } CFRelease(rgn); } else { /* * An unmapped window has empty clip regions to prevent any * (erroneous) drawing into it or its children from becoming * visible. [Bug 940117] */ if (!Tk_IsTopLevel(winPtr)) { TkMacOSXUpdateClipRgn(winPtr->parentPtr); } else if (Tk_IsEmbedded(winPtr)) { win2Ptr = TkpGetOtherWindow(winPtr); if (win2Ptr) { TkMacOSXUpdateClipRgn(win2Ptr); } } macWin->aboveVisRgn = TkMacOSXHIShapeCreateEmpty(); } if (!macWin->visRgn) { macWin->visRgn = HIShapeCreateCopy(macWin->aboveVisRgn); } macWin->flags &= ~TK_CLIP_INVALID; #ifdef TK_MAC_DEBUG_CLIP_REGIONS TkMacOSXDebugFlashRegion((Drawable) macWin, macWin->visRgn); #endif /* TK_MAC_DEBUG_CLIP_REGIONS */ } } /* *---------------------------------------------------------------------- * * TkMacOSXVisableClipRgn -- * * This function returnd the Macintosh cliping region for the * given window. A NULL Rgn means the window is not visible. * * Results: * The region. * * Side effects: * None. * *---------------------------------------------------------------------- */ RgnHandle TkMacOSXVisableClipRgn( TkWindow *winPtr) { static RgnHandle visQdRgn = NULL; if (visQdRgn == NULL) { visQdRgn = NewRgn(); } if (winPtr->privatePtr->flags & TK_CLIP_INVALID) { TkMacOSXUpdateClipRgn(winPtr); } ChkErr(HIShapeGetAsQDRgn, winPtr->privatePtr->visRgn, visQdRgn); return visQdRgn; } /* *---------------------------------------------------------------------- * * TkMacOSXInvalidateWindow -- * * This function makes the window as invalid will generate damage * for the window. * * Results: * None. * * Side effects: * Damage is created. * *---------------------------------------------------------------------- */ void TkMacOSXInvalidateWindow( MacDrawable *macWin, /* Make window that's causing damage. */ int flag) /* Should be TK_WINDOW_ONLY or * TK_PARENT_WINDOW */ { WindowRef windowRef; HIShapeRef rgn; windowRef = TkMacOSXDrawableWindow((Drawable)macWin); if (macWin->flags & TK_CLIP_INVALID) { TkMacOSXUpdateClipRgn(macWin->winPtr); } rgn = (flag == TK_WINDOW_ONLY) ? macWin->visRgn : macWin->aboveVisRgn; if (!HIShapeIsEmpty(rgn)) { TkMacOSXCheckTmpQdRgnEmpty(); ChkErr(HIShapeGetAsQDRgn, rgn, tkMacOSXtmpQdRgn); InvalWindowRgn(windowRef, tkMacOSXtmpQdRgn); SetEmptyRgn(tkMacOSXtmpQdRgn); } #ifdef TK_MAC_DEBUG_CLIP_REGIONS TkMacOSXDebugFlashRegion((Drawable) macWin, rgn); #endif /* TK_MAC_DEBUG_CLIP_REGIONS */ } /* *---------------------------------------------------------------------- * * TkMacOSXGetDrawableWindow -- * * This function returns the WindowRef for a given X drawable. * * Results: * A WindowRef, or NULL for off screen pixmaps. * * Side effects: * None. * *---------------------------------------------------------------------- */ WindowRef TkMacOSXDrawableWindow( Drawable drawable) { MacDrawable *macWin = (MacDrawable *) drawable; WindowRef result = NULL; if (!macWin || macWin->flags & TK_IS_PIXMAP) { result = NULL; } else { result = GetWindowFromPort(TkMacOSXGetDrawablePort(drawable)); } return result; } /* *---------------------------------------------------------------------- * * TkMacOSXGetDrawablePort -- * * This function returns the Graphics Port for a given X drawable. * * Results: * A CGrafPort . Either an off screen pixmap or a Window. * * Side effects: * None. * *---------------------------------------------------------------------- */ CGrafPtr TkMacOSXGetDrawablePort( Drawable drawable) { MacDrawable *macWin = (MacDrawable *) drawable; CGrafPtr resultPort = NULL; if (macWin) { if (macWin->toplevel) { /* * If the Drawable is in an embedded window, use the Port of its * container. * * TRICKY POINT: we can have cases when a toplevel is being * destroyed where the winPtr for the toplevel has been freed, but * the children are not all the way destroyed. The children will * call this function as they are being destroyed, but * Tk_IsEmbedded will return garbage. So we check the copy of the * TK_EMBEDDED flag we put into the toplevel's macWin flags. */ if (macWin->toplevel->flags & TK_EMBEDDED) { TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(macWin->toplevel->winPtr); if (contWinPtr != NULL) { resultPort = TkMacOSXGetDrawablePort( (Drawable) contWinPtr->privatePtr); } else if (tkMacOSXEmbedHandler != NULL) { resultPort = tkMacOSXEmbedHandler->getPortProc( (Tk_Window) macWin->winPtr); } if (!resultPort) { /* * FIXME: So far as I can tell, the only time that this * happens is when we are tearing down an embedded child * interpreter, and most of the time, this is harmless... * However, we really need to find why the embedding loses. */ TkMacOSXDbgMsg("Couldn't find container"); } /* * TODO: Here we should handle out of process embedding. */ } else { resultPort = macWin->toplevel->grafPtr; } } else { if ((macWin->flags & TK_IS_PIXMAP) && !macWin->grafPtr) { Rect bounds = {0, 0, macWin->size.height, macWin->size.width}; ChkErr(NewGWorld, &macWin->grafPtr, (macWin->flags & TK_IS_BW_PIXMAP) ? 1 : 0, &bounds, NULL, NULL, 0 #ifdef __LITTLE_ENDIAN__ | kNativeEndianPixMap #endif ); } resultPort = macWin->grafPtr; } } return resultPort; } /* *---------------------------------------------------------------------- * * TkMacOSXGetRootControl -- * * This function returns the Root Control for a given X drawable. * * Results: * A ControlRef . * * Side effects: * None. * *---------------------------------------------------------------------- */ ControlRef TkMacOSXGetRootControl( Drawable drawable) { /* * will probably need to fix this up for embedding */ MacDrawable *macWin = (MacDrawable *) drawable; ControlRef result = NULL; if (macWin == NULL) { return NULL; } if (!(macWin->toplevel->flags & TK_EMBEDDED)) { return macWin->toplevel->rootControl; } else { TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(macWin->toplevel->winPtr); if (contWinPtr != NULL) { result = TkMacOSXGetRootControl( (Drawable) contWinPtr->privatePtr); } else if (tkMacOSXEmbedHandler != NULL) { result = NULL; } } return result; } /* *---------------------------------------------------------------------- * * TkMacOSXInvalClipRgns -- * * This function invalidates the clipping regions for a given * window and all of its children. This function should be * called whenever changes are made to subwindows that would * affect the size or position of windows. * * Results: * None. * * Side effects: * The cliping regions for the window and its children are * mark invalid. (Make sure they are valid before drawing.) * *---------------------------------------------------------------------- */ void TkMacOSXInvalClipRgns( Tk_Window tkwin) { TkWindow *winPtr = (TkWindow *) tkwin; TkWindow *childPtr; MacDrawable *macWin = winPtr->privatePtr; /* * If already marked we can stop because all * decendants will also already be marked. */ if (!macWin || macWin->flags & TK_CLIP_INVALID) { return; } macWin->flags |= TK_CLIP_INVALID; if (macWin->visRgn) { CFRelease(macWin->visRgn); macWin->visRgn = NULL; } if (macWin->aboveVisRgn) { CFRelease(macWin->aboveVisRgn); macWin->aboveVisRgn = NULL; } /* * Invalidate clip regions for all children & * their decendants - unless the child is a toplevel. */ childPtr = winPtr->childList; while (childPtr) { if (!Tk_IsTopLevel(childPtr)) { TkMacOSXInvalClipRgns((Tk_Window) childPtr); } childPtr = childPtr->nextPtr; } /* * Also, if the window is a container, mark its embedded window */ if (Tk_IsContainer(winPtr)) { childPtr = TkpGetOtherWindow(winPtr); if (childPtr) { TkMacOSXInvalClipRgns((Tk_Window) childPtr); } /* * TODO: Here we should handle out of process embedding. */ } } /* *---------------------------------------------------------------------- * * TkMacOSXWinBounds -- * * Given a Tk window this function determines the windows * bounds in relation to the Macintosh window's coordinate * system. This is also the same coordinate system as the * Tk toplevel window in which this window is contained. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkMacOSXWinBounds( TkWindow *winPtr, Rect *bounds) { bounds->left = winPtr->privatePtr->xOff; bounds->top = winPtr->privatePtr->yOff; bounds->right = bounds->left + winPtr->changes.width; bounds->bottom = bounds->top + winPtr->changes.height; } /* *---------------------------------------------------------------------- * * TkMacOSXWinCGBounds -- * * Given a Tk window this function determines the windows * bounds in relation to the Macintosh window's coordinate * system. This is also the same coordinate system as the * Tk toplevel window in which this window is contained. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkMacOSXWinCGBounds( TkWindow *winPtr, CGRect *bounds) { bounds->origin.x = winPtr->privatePtr->xOff; bounds->origin.y = winPtr->privatePtr->yOff; bounds->size.width = winPtr->changes.width; bounds->size.height = winPtr->changes.height; } /* *---------------------------------------------------------------------- * * UpdateOffsets -- * * Updates the X & Y offsets of the given TkWindow from the * TopLevel it is a decendant of. * * Results: * None. * * Side effects: * The xOff & yOff fields for the Mac window datastructure * is updated to the proper offset. * *---------------------------------------------------------------------- */ static void UpdateOffsets( TkWindow *winPtr, int deltaX, int deltaY) { TkWindow *childPtr; if (winPtr->privatePtr == NULL) { /* * We haven't called Tk_MakeWindowExist for this window yet. The * offset information will be postponed and calulated at that * time. (This will usually only happen when a mapped parent is * being moved but has child windows that have yet to be mapped.) */ return; } winPtr->privatePtr->xOff += deltaX; winPtr->privatePtr->yOff += deltaY; childPtr = winPtr->childList; while (childPtr != NULL) { if (!Tk_IsTopLevel(childPtr)) { UpdateOffsets(childPtr, deltaX, deltaY); } childPtr = childPtr->nextPtr; } if (Tk_IsContainer(winPtr)) { childPtr = TkpGetOtherWindow(winPtr); if (childPtr != NULL) { UpdateOffsets(childPtr,deltaX,deltaY); } /* * TODO: Here we should handle out of process embedding. */ } } /* *---------------------------------------------------------------------- * * Tk_GetPixmap -- * * Creates an in memory drawing surface. * * Results: * Returns a handle to a new pixmap. * * Side effects: * Allocates a new Macintosh GWorld. * *---------------------------------------------------------------------- */ Pixmap Tk_GetPixmap( Display *display, /* Display for new pixmap (can be null). */ Drawable d, /* Drawable where pixmap will be used (ignored). */ int width, /* Dimensions of pixmap. */ int height, int depth) /* Bits per pixel for pixmap. */ { MacDrawable *macPix; if (display != NULL) { display->request++; } macPix = (MacDrawable *) ckalloc(sizeof(MacDrawable)); macPix->winPtr = NULL; macPix->xOff = 0; macPix->yOff = 0; macPix->visRgn = NULL; macPix->aboveVisRgn = NULL; macPix->drawRect = CGRectNull; macPix->referenceCount = 0; macPix->toplevel = NULL; macPix->flags = TK_IS_PIXMAP | (depth == 1 ? TK_IS_BW_PIXMAP : 0); macPix->grafPtr = NULL; macPix->context = NULL; macPix->size = CGSizeMake(width, height); { Rect bounds = {0, 0, height, width}; ChkErr(NewGWorld, &macPix->grafPtr, depth == 1 ? 1 : 0, &bounds, NULL, NULL, 0 #ifdef __LITTLE_ENDIAN__ | kNativeEndianPixMap #endif ); } return (Pixmap) macPix; } /* *---------------------------------------------------------------------- * * Tk_FreePixmap -- * * Release the resources associated with a pixmap. * * Results: * None. * * Side effects: * Deletes the Macintosh GWorld created by Tk_GetPixmap. * *---------------------------------------------------------------------- */ void Tk_FreePixmap( Display *display, /* Display. */ Pixmap pixmap) /* Pixmap to destroy */ { MacDrawable *macPix = (MacDrawable *) pixmap; display->request++; if (macPix->grafPtr) { DisposeGWorld(macPix->grafPtr); } if (macPix->context) { TkMacOSXDbgMsg("Cannot free CG backed Pixmap"); } ckfree((char *) macPix); }