/* * tkMacOSXSubwindows.c -- * * Implements subwindows for the macintosh version of Tk. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * Copyright 2001, Apple Computer, Inc. * * 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 1.2.2.1 2004/02/16 00:42:34 wolfsuit Exp $ */ #include "tkInt.h" #include "X11/X.h" #include "X11/Xlib.h" #include #include #include "tkMacOSXInt.h" #include "tkMacOSXDebug.h" /* * Temporary region that can be reused. */ static RgnHandle tmpRgn = NULL; static void UpdateOffsets _ANSI_ARGS_((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; CGrafPtr destPort; /* * 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)) { DisposeRgn(macWin->clipRgn); DisposeRgn(macWin->aboveClipRgn); /* * 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))) { destPort = TkMacOSXGetDrawablePort(window); if (destPort != NULL) { TkMacOSXWindowList *listPtr, *prevPtr; WindowRef winRef; winRef = GetWindowFromPort(destPort); 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 { CGrafPtr destPort; destPort = TkMacOSXGetDrawablePort(window); if (destPort != NULL) { SetGWorld(destPort, NULL); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); } if (macWin->winPtr->parentPtr != NULL) { TkMacOSXInvalClipRgns(macWin->winPtr->parentPtr); } DisposeRgn(macWin->clipRgn); DisposeRgn(macWin->aboveClipRgn); 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; CGrafPtr destPort; /* * 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); } destPort = TkMacOSXGetDrawablePort (window); display->request++; macWin->winPtr->flags |= TK_MAPPED; if (Tk_IsTopLevel(macWin->winPtr)) { if (!Tk_IsEmbedded(macWin->winPtr)) { ShowWindow(GetWindowFromPort(destPort)); } /* * 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 { TkMacOSXInvalClipRgns(macWin->winPtr->parentPtr); } /* * Generate damage for that area of the window */ SetGWorld (destPort, NULL); TkMacOSXUpdateClipRgn(macWin->winPtr); 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; CGrafPtr destPort; destPort = TkMacOSXGetDrawablePort(window); display->request++; macWin->winPtr->flags &= ~TK_MAPPED; if (Tk_IsTopLevel(macWin->winPtr)) { if (!Tk_IsEmbedded(macWin->winPtr)) { HideWindow(GetWindowFromPort(destPort)); } /* * 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. */ SetGWorld(destPort, NULL); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); /* TODO: may not be valid */ TkMacOSXInvalClipRgns(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; CGrafPtr destPort; destPort = TkMacOSXGetDrawablePort(window); if (destPort == NULL) { return; } display->request++; SetPort( destPort); if (Tk_IsTopLevel(macWin->winPtr)) { if (!Tk_IsEmbedded(macWin->winPtr)) { /* * NOTE: we are not adding the new space to the update * region. It is currently assumed that Tk will need * to completely redraw anway. */ SizeWindow(GetWindowFromPort(destPort), (short) width, (short) height, false); TkMacOSXInvalidateWindow(macWin, TK_WINDOW_ONLY); TkMacOSXInvalClipRgns(macWin->winPtr); } else { int deltaX, deltaY; /* * Find the Parent window - * For an embedded window this will be its container. */ TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(macWin->winPtr); if (contWinPtr != NULL) { MacDrawable *macParent = contWinPtr->privatePtr; TkMacOSXInvalClipRgns(macParent->winPtr); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); deltaX = macParent->xOff + macWin->winPtr->changes.x - macWin->xOff; deltaY = macParent->yOff + macWin->winPtr->changes.y - macWin->yOff; UpdateOffsets(macWin->winPtr, deltaX, deltaY); } else { /* * This is the case where we are embedded in * another app. 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. */ TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); UpdateOffsets(macWin->winPtr, 0, 0); } } } else { /* TODO: update all xOff & yOffs */ int deltaX, deltaY, parentBorderwidth; MacDrawable *macParent = macWin->winPtr->parentPtr->privatePtr; if (macParent == NULL) { return; /* TODO: Probably should be a panic */ } TkMacOSXInvalClipRgns(macParent->winPtr); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); deltaX = - macWin->xOff; deltaY = - macWin->yOff; parentBorderwidth = macWin->winPtr->parentPtr->changes.border_width; deltaX += macParent->xOff + parentBorderwidth + macWin->winPtr->changes.x; deltaY += macParent->yOff + parentBorderwidth + macWin->winPtr->changes.y; UpdateOffsets(macWin->winPtr, deltaX, deltaY); } } /* *---------------------------------------------------------------------- * * 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; CGrafPtr destPort; destPort = TkMacOSXGetDrawablePort(window); if (destPort == NULL) { return; } SetPort( destPort); if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { /* * NOTE: we are not adding the new space to the update * region. It is currently assumed that Tk will need * to completely redraw anway. */ SizeWindow(GetWindowFromPort(destPort), (short) width, (short) height, false); MoveWindowStructure(GetWindowFromPort(destPort), x, y); /* TODO: is the following right? */ TkMacOSXInvalidateWindow(macWin, TK_WINDOW_ONLY); TkMacOSXInvalClipRgns(macWin->winPtr); } else { int deltaX, deltaY, parentBorderwidth; Rect bounds; MacDrawable *macParent; /* * Find the Parent window - * For an embedded window this will be its container. */ if (Tk_IsEmbedded(macWin->winPtr)) { TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(macWin->winPtr); if (contWinPtr == NULL) { panic("XMoveResizeWindow could not find container"); } macParent = contWinPtr->privatePtr; /* * NOTE: Here we should handle out of process embedding. */ } else { macParent = macWin->winPtr->parentPtr->privatePtr; if (macParent == NULL) { return; /* TODO: Probably should be a panic */ } } TkMacOSXInvalClipRgns(macParent->winPtr); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); deltaX = - macWin->xOff; deltaY = - macWin->yOff; /* * If macWin->winPtr is an embedded window, don't offset by its * parent's borderwidth... */ if (!Tk_IsEmbedded(macWin->winPtr)) { parentBorderwidth = macWin->winPtr->parentPtr->changes.border_width; } else { parentBorderwidth = 0; } deltaX += macParent->xOff + parentBorderwidth + macWin->winPtr->changes.x; deltaY += macParent->yOff + parentBorderwidth + macWin->winPtr->changes.y; UpdateOffsets(macWin->winPtr, deltaX, deltaY); TkMacOSXWinBounds(macWin->winPtr, &bounds); InvalWindowRect(GetWindowFromPort(destPort),&bounds); } } /* *---------------------------------------------------------------------- * * 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; CGrafPtr destPort; destPort = TkMacOSXGetDrawablePort(window); if (destPort == NULL) { return; } SetPort( destPort); if (Tk_IsTopLevel(macWin->winPtr) && !Tk_IsEmbedded(macWin->winPtr)) { /* * NOTE: we are not adding the new space to the update * region. It is currently assumed that Tk will need * to completely redraw anway. */ MoveWindowStructure( GetWindowFromPort(destPort), x, y); /* TODO: is the following right? */ TkMacOSXInvalidateWindow(macWin, TK_WINDOW_ONLY); TkMacOSXInvalClipRgns(macWin->winPtr); } else { int deltaX, deltaY, parentBorderwidth; Rect bounds; MacDrawable *macParent; /* * Find the Parent window - * For an embedded window this will be its container. */ if (Tk_IsEmbedded(macWin->winPtr)) { TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(macWin->winPtr); if (contWinPtr == NULL) { panic("XMoveWindow could not find container"); } macParent = contWinPtr->privatePtr; /* * NOTE: Here we should handle out of process embedding. */ } else { macParent = macWin->winPtr->parentPtr->privatePtr; if (macParent == NULL) { return; /* TODO: Probably should be a panic */ } } TkMacOSXInvalClipRgns(macParent->winPtr); TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW); deltaX = - macWin->xOff; deltaY = - macWin->yOff; /* * If macWin->winPtr is an embedded window, don't offset by its * parent's borderwidth... */ if (!Tk_IsEmbedded(macWin->winPtr)) { parentBorderwidth = macWin->winPtr->parentPtr->changes.border_width; } else { parentBorderwidth = 0; } deltaX += macParent->xOff + parentBorderwidth + macWin->winPtr->changes.x; deltaY += macParent->yOff + parentBorderwidth + macWin->winPtr->changes.y; UpdateOffsets(macWin->winPtr, deltaX, deltaY); TkMacOSXWinBounds(macWin->winPtr, &bounds); InvalWindowRect(GetWindowFromPort(destPort),&bounds); } } /* *---------------------------------------------------------------------- * * 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 */ } } /* *---------------------------------------------------------------------- * * 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 */ } } /* *---------------------------------------------------------------------- * * 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; CGrafPtr destPort; destPort = TkMacOSXGetDrawablePort(w); if (destPort != NULL) { SetPort( destPort); TkMacOSXInvalClipRgns(winPtr->parentPtr); TkMacOSXWinBounds(winPtr, &bounds); InvalWindowRect(GetWindowFromPort(destPort),&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) { RgnHandle rgn; int x, y; TkWindow *win2Ptr; if (winPtr == NULL) { return; } if (winPtr->privatePtr->flags & TK_CLIP_INVALID) { rgn = winPtr->privatePtr->aboveClipRgn; if (tmpRgn == NULL) { tmpRgn = NewRgn(); } /* * Start with a region defined by the window bounds. */ x = winPtr->privatePtr->xOff; y = winPtr->privatePtr->yOff; SetRectRgn(rgn, (short) x, (short) y, (short) (winPtr->changes.width + x), (short) (winPtr->changes.height + y)); /* * Clip away the area of any windows that may obscure this * window. * For a non-toplevel window, first, clip to the parents visable * 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); SectRgn(rgn, winPtr->parentPtr->privatePtr->aboveClipRgn, rgn); win2Ptr = winPtr->nextPtr; while (win2Ptr != NULL) { if (Tk_IsTopLevel(win2Ptr) || !Tk_IsMapped(win2Ptr)) { win2Ptr = win2Ptr->nextPtr; continue; } x = win2Ptr->privatePtr->xOff; y = win2Ptr->privatePtr->yOff; SetRectRgn(tmpRgn, (short) x, (short) y, (short) (win2Ptr->changes.width + x), (short) (win2Ptr->changes.height + y)); DiffRgn(rgn, tmpRgn, rgn); win2Ptr = win2Ptr->nextPtr; } } else if (Tk_IsEmbedded(winPtr)) { TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(winPtr); if (contWinPtr != NULL) { TkMacOSXUpdateClipRgn(contWinPtr); SectRgn(rgn, contWinPtr->privatePtr->aboveClipRgn, rgn); } else if (gMacEmbedHandler != NULL) { gMacEmbedHandler->getClipProc((Tk_Window) winPtr, tmpRgn); SectRgn(rgn, tmpRgn, rgn); } /* * NOTE: Here we should handle out of process embedding. */ } /* * The final clip region is the aboveClip region (or visable * region) minus all the children of this window. * Alternatively, if the window is a container, we must also * subtract the region of the embedded window. */ rgn = winPtr->privatePtr->clipRgn; CopyRgn(winPtr->privatePtr->aboveClipRgn, rgn); win2Ptr = winPtr->childList; while (win2Ptr != NULL) { if (Tk_IsTopLevel(win2Ptr) || !Tk_IsMapped(win2Ptr)) { win2Ptr = win2Ptr->nextPtr; continue; } x = win2Ptr->privatePtr->xOff; y = win2Ptr->privatePtr->yOff; SetRectRgn(tmpRgn, (short) x, (short) y, (short) (win2Ptr->changes.width + x), (short) (win2Ptr->changes.height + y)); DiffRgn(rgn, tmpRgn, rgn); win2Ptr = win2Ptr->nextPtr; } if (Tk_IsContainer(winPtr)) { win2Ptr = TkpGetOtherWindow(winPtr); if (win2Ptr != NULL) { if (Tk_IsMapped(win2Ptr)) { x = win2Ptr->privatePtr->xOff; y = win2Ptr->privatePtr->yOff; SetRectRgn(tmpRgn, (short) x, (short) y, (short) (win2Ptr->changes.width + x), (short) (win2Ptr->changes.height + y)); DiffRgn(rgn, tmpRgn, rgn); } } /* * NOTE: Here we should handle out of process embedding. */ } winPtr->privatePtr->flags &= ~TK_CLIP_INVALID; } } /* *---------------------------------------------------------------------- * * TkMacOSXVisableClipRgn -- * * This function returnd the Macintosh cliping region for the * given window. A NULL Rgn means the window is not visable. * * Results: * The region. * * Side effects: * None. * *---------------------------------------------------------------------- */ RgnHandle TkMacOSXVisableClipRgn( TkWindow *winPtr) { if (winPtr->privatePtr->flags & TK_CLIP_INVALID) { TkMacOSXUpdateClipRgn(winPtr); } return winPtr->privatePtr->clipRgn; } /* *---------------------------------------------------------------------- * * 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; CGrafPtr grafPtr; grafPtr = TkMacOSXGetDrawablePort((Drawable)macWin); windowRef = GetWindowFromPort(grafPtr); if (flag == TK_WINDOW_ONLY) { InvalWindowRgn(windowRef,macWin->clipRgn); } else { if (!EmptyRgn(macWin->aboveClipRgn)) { InvalWindowRgn(windowRef,macWin->aboveClipRgn); } } } /* *---------------------------------------------------------------------- * * 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; GWorldPtr resultPort = NULL; if (macWin == NULL) { return NULL; } /* * This is NULL for off-screen pixmaps. Then the portPtr * always points to the off-screen port, and we don't * have to worry about containment */ if (macWin->clipRgn == NULL) { return macWin->grafPtr; } /* * 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)) { return macWin->toplevel->grafPtr; } else { TkWindow *contWinPtr; contWinPtr = TkpGetOtherWindow(macWin->toplevel->winPtr); if (contWinPtr != NULL) { resultPort = TkMacOSXGetDrawablePort( (Drawable) contWinPtr->privatePtr); } else if (gMacEmbedHandler != NULL) { resultPort = gMacEmbedHandler->getPortProc( (Tk_Window) macWin->winPtr); } if (resultPort == NULL) { /* * 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. */ DebugStr("\pTkMacOSXGetDrawablePort couldn't find container"); return NULL; } /* * NOTE: Here we should handle out of process embedding. */ } 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 (gMacEmbedHandler != 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 * effect 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( TkWindow *winPtr) { TkWindow *childPtr; /* * If already marked we can stop because all * decendants will also already be marked. */ if (winPtr->privatePtr->flags & TK_CLIP_INVALID) { return; } winPtr->privatePtr->flags |= TK_CLIP_INVALID; /* * Invalidate clip regions for all children & * their decendants - unless the child is a toplevel. */ childPtr = winPtr->childList; while (childPtr != NULL) { if (!Tk_IsTopLevel(childPtr) && Tk_IsMapped(childPtr)) { TkMacOSXInvalClipRgns(childPtr); } childPtr = childPtr->nextPtr; } /* * Also, if the window is a container, mark its embedded window */ if (Tk_IsContainer(winPtr)) { childPtr = TkpGetOtherWindow(winPtr); if (childPtr != NULL && Tk_IsMapped(childPtr)) { TkMacOSXInvalClipRgns(childPtr); } /* * NOTE: 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 = (short) winPtr->privatePtr->xOff; bounds->top = (short) winPtr->privatePtr->yOff; bounds->right = (short) (winPtr->privatePtr->xOff + winPtr->changes.width); bounds->bottom = (short) (winPtr->privatePtr->yOff + 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 havn'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); } /* * NOTE: 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. */ { QDErr err; GWorldPtr gWorld; Rect bounds; MacDrawable *macPix; PixMapHandle pixels; if (display != NULL) { display->request++; } macPix = (MacDrawable *) ckalloc(sizeof(MacDrawable)); macPix->winPtr = NULL; macPix->xOff = 0; macPix->yOff = 0; macPix->clipRgn = NULL; macPix->aboveClipRgn = NULL; macPix->referenceCount = 0; macPix->toplevel = NULL; macPix->flags = 0; bounds.top = bounds.left = 0; bounds.right = (short) width; bounds.bottom = (short) height; if (depth != 1) { depth = 0; } /* * Allocate memory for the off screen pixmap. If we fail * try again from system memory. Eventually, we may have * to panic. */ err = NewGWorld(&gWorld, depth, &bounds, NULL, NULL, 0); if (err != noErr) { err = NewGWorld(&gWorld, depth, &bounds, NULL, NULL, useTempMem); } if (err != noErr) { panic("Out of memory: NewGWorld failed in Tk_GetPixmap"); } /* * Lock down the pixels so they don't move out from under us. */ pixels = GetGWorldPixMap(gWorld); LockPixels(pixels); macPix->grafPtr = gWorld; 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; PixMapHandle pixels; display->request++; pixels = GetGWorldPixMap(macPix->grafPtr); UnlockPixels(pixels); DisposeGWorld(macPix->grafPtr); ckfree((char *) macPix); }