Import Tk 8.6.6 (as of svn r86089)
This commit is contained in:
Zachary Ware
784
generic/tkGeometry.c
Normal file
784
generic/tkGeometry.c
Normal file
@@ -0,0 +1,784 @@
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/*
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* tkGeometry.c --
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*
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* This file contains generic Tk code for geometry management (stuff
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* that's used by all geometry managers).
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*
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* Copyright (c) 1990-1994 The Regents of the University of California.
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* Copyright (c) 1994-1995 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 "tkInt.h"
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/*
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* Data structures of the following type are used by Tk_MaintainGeometry. For
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* each slave managed by Tk_MaintainGeometry, there is one of these structures
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* associated with its master.
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*/
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typedef struct MaintainSlave {
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Tk_Window slave; /* The slave window being positioned. */
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Tk_Window master; /* The master that determines slave's
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* position; it must be a descendant of
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* slave's parent. */
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int x, y; /* Desired position of slave relative to
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* master. */
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int width, height; /* Desired dimensions of slave. */
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struct MaintainSlave *nextPtr;
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/* Next in list of Maintains associated with
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* master. */
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} MaintainSlave;
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/*
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* For each window that has been specified as a master to Tk_MaintainGeometry,
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* there is a structure of the following type:
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*/
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typedef struct MaintainMaster {
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Tk_Window ancestor; /* The lowest ancestor of this window for
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* which we have *not* created a
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* StructureNotify handler. May be the same as
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* the window itself. */
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int checkScheduled; /* Non-zero means that there is already a call
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* to MaintainCheckProc scheduled as an idle
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* handler. */
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MaintainSlave *slavePtr; /* First in list of all slaves associated with
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* this master. */
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} MaintainMaster;
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/*
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* Prototypes for static procedures in this file:
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*/
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static void MaintainCheckProc(ClientData clientData);
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static void MaintainMasterProc(ClientData clientData,
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XEvent *eventPtr);
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static void MaintainSlaveProc(ClientData clientData,
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XEvent *eventPtr);
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/*
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*--------------------------------------------------------------
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*
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* Tk_ManageGeometry --
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*
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* Arrange for a particular procedure to manage the geometry of a given
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* slave 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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* Proc becomes the new geometry manager for tkwin, replacing any
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* previous geometry manager. The geometry manager will be notified (by
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* calling procedures in *mgrPtr) when interesting things happen in the
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* future. If there was an existing geometry manager for tkwin different
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* from the new one, it is notified by calling its lostSlaveProc.
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*
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*--------------------------------------------------------------
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*/
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void
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Tk_ManageGeometry(
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Tk_Window tkwin, /* Window whose geometry is to be managed by
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* proc. */
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const Tk_GeomMgr *mgrPtr, /* Static structure describing the geometry
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* manager. This structure must never go
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* away. */
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ClientData clientData) /* Arbitrary one-word argument to pass to
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* geometry manager procedures. */
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{
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register TkWindow *winPtr = (TkWindow *) tkwin;
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if ((winPtr->geomMgrPtr != NULL) && (mgrPtr != NULL)
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&& ((winPtr->geomMgrPtr != mgrPtr)
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|| (winPtr->geomData != clientData))
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&& (winPtr->geomMgrPtr->lostSlaveProc != NULL)) {
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winPtr->geomMgrPtr->lostSlaveProc(winPtr->geomData, tkwin);
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}
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winPtr->geomMgrPtr = mgrPtr;
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winPtr->geomData = clientData;
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}
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/*
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*--------------------------------------------------------------
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*
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* Tk_GeometryRequest --
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*
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* This procedure is invoked by widget code to indicate its preferences
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* about the size of a window it manages. In general, widget code should
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* call this procedure rather than Tk_ResizeWindow.
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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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* The geometry manager for tkwin (if any) is invoked to handle the
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* request. If possible, it will reconfigure tkwin and/or other windows
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* to satisfy the request. The caller gets no indication of success or
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* failure, but it will get X events if the window size was actually
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* changed.
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*
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*--------------------------------------------------------------
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*/
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void
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Tk_GeometryRequest(
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Tk_Window tkwin, /* Window that geometry information pertains
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* to. */
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int reqWidth, int reqHeight)/* Minimum desired dimensions for window, in
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* pixels. */
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{
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register TkWindow *winPtr = (TkWindow *) tkwin;
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/*
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* X gets very upset if a window requests a width or height of zero, so
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* rounds requested sizes up to at least 1.
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*/
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if (reqWidth <= 0) {
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reqWidth = 1;
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}
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if (reqHeight <= 0) {
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reqHeight = 1;
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}
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if ((reqWidth == winPtr->reqWidth) && (reqHeight == winPtr->reqHeight)) {
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return;
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}
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winPtr->reqWidth = reqWidth;
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winPtr->reqHeight = reqHeight;
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if ((winPtr->geomMgrPtr != NULL)
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&& (winPtr->geomMgrPtr->requestProc != NULL)) {
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winPtr->geomMgrPtr->requestProc(winPtr->geomData, tkwin);
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_SetInternalBorderEx --
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*
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* Notify relevant geometry managers that a window has an internal border
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* of a given width and that child windows should not be placed on that
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* border.
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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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* The border widths are recorded for the window, and all geometry
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* managers of all children are notified so that can re-layout, if
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* necessary.
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*
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*----------------------------------------------------------------------
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*/
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void
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Tk_SetInternalBorderEx(
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Tk_Window tkwin, /* Window that will have internal border. */
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int left, int right, /* Width of internal border, in pixels. */
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int top, int bottom)
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{
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register TkWindow *winPtr = (TkWindow *) tkwin;
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register int changed = 0;
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if (left < 0) {
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left = 0;
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}
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if (left != winPtr->internalBorderLeft) {
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winPtr->internalBorderLeft = left;
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changed = 1;
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}
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if (right < 0) {
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right = 0;
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}
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if (right != winPtr->internalBorderRight) {
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winPtr->internalBorderRight = right;
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changed = 1;
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}
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if (top < 0) {
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top = 0;
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}
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if (top != winPtr->internalBorderTop) {
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winPtr->internalBorderTop = top;
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changed = 1;
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}
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if (bottom < 0) {
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bottom = 0;
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}
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if (bottom != winPtr->internalBorderBottom) {
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winPtr->internalBorderBottom = bottom;
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changed = 1;
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}
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/*
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* All the slaves for which this is the master window must now be
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* repositioned to take account of the new internal border width. To
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* signal all the geometry managers to do this, just resize the window to
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* its current size. The ConfigureNotify event will cause geometry
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* managers to recompute everything.
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*/
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if (changed) {
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Tk_ResizeWindow(tkwin, Tk_Width(tkwin), Tk_Height(tkwin));
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_SetInternalBorder --
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*
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* Notify relevant geometry managers that a window has an internal border
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* of a given width and that child windows should not be placed on that
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* border.
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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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* The border width is recorded for the window, and all geometry managers
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* of all children are notified so that can re-layout, if necessary.
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*
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*----------------------------------------------------------------------
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*/
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void
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Tk_SetInternalBorder(
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Tk_Window tkwin, /* Window that will have internal border. */
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int width) /* Width of internal border, in pixels. */
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{
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Tk_SetInternalBorderEx(tkwin, width, width, width, width);
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_SetMinimumRequestSize --
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*
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* Notify relevant geometry managers that a window has a minimum request
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* size.
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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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* The minimum request size is recorded for the window, and a new size is
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* requested for the window, if necessary.
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*
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*----------------------------------------------------------------------
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*/
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void
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Tk_SetMinimumRequestSize(
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Tk_Window tkwin, /* Window that will have internal border. */
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int minWidth, int minHeight)/* Minimum requested size, in pixels. */
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{
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register TkWindow *winPtr = (TkWindow *) tkwin;
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if ((winPtr->minReqWidth == minWidth) &&
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(winPtr->minReqHeight == minHeight)) {
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return;
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}
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winPtr->minReqWidth = minWidth;
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winPtr->minReqHeight = minHeight;
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/*
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* The changed min size may cause geometry managers to get a different
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* result, so make them recompute. To signal all the geometry managers to
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* do this, just resize the window to its current size. The
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* ConfigureNotify event will cause geometry managers to recompute
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* everything.
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*/
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Tk_ResizeWindow(tkwin, Tk_Width(tkwin), Tk_Height(tkwin));
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkSetGeometryMaster --
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*
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* Set a geometry master for this window. Only one master may own
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* a window at any time.
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*
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* Results:
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* A standard Tcl result.
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*
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* Side effects:
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* The geometry master is recorded for the window.
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*
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*----------------------------------------------------------------------
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*/
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int
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TkSetGeometryMaster(
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Tcl_Interp *interp, /* Current interpreter, for error. */
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Tk_Window tkwin, /* Window that will have geometry master
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* set. */
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const char *master) /* The master identity. */
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{
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register TkWindow *winPtr = (TkWindow *) tkwin;
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if (winPtr->geometryMaster != NULL &&
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strcmp(winPtr->geometryMaster, master) == 0) {
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return TCL_OK;
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}
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if (winPtr->geometryMaster != NULL) {
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if (interp != NULL) {
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Tcl_SetObjResult(interp, Tcl_ObjPrintf(
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"cannot use geometry manager %s inside %s which already"
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" has slaves managed by %s",
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master, Tk_PathName(tkwin), winPtr->geometryMaster));
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Tcl_SetErrorCode(interp, "TK", "GEOMETRY", "FIGHT", NULL);
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}
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return TCL_ERROR;
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}
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winPtr->geometryMaster = ckalloc(strlen(master) + 1);
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strcpy(winPtr->geometryMaster, master);
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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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* TkFreeGeometryMaster --
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*
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* Remove a geometry master for this window. Only one master may own
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* a window at any time.
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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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* The geometry master is cleared for the window.
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*
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*----------------------------------------------------------------------
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*/
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void
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TkFreeGeometryMaster(
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Tk_Window tkwin, /* Window that will have geometry master
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* cleared. */
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const char *master) /* The master identity. */
|
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{
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register TkWindow *winPtr = (TkWindow *) tkwin;
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if (winPtr->geometryMaster != NULL &&
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strcmp(winPtr->geometryMaster, master) != 0) {
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Tcl_Panic("Trying to free %s from geometry manager %s",
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winPtr->geometryMaster, master);
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}
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if (winPtr->geometryMaster != NULL) {
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ckfree(winPtr->geometryMaster);
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winPtr->geometryMaster = NULL;
|
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_MaintainGeometry --
|
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*
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* This procedure is invoked by geometry managers to handle slaves whose
|
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* master's are not their parents. It translates the desired geometry for
|
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* the slave into the coordinate system of the parent and respositions
|
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* the slave if it isn't already at the right place. Furthermore, it sets
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* up event handlers so that if the master (or any of its ancestors up to
|
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* the slave's parent) is mapped, unmapped, or moved, then the slave will
|
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* be adjusted to match.
|
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*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Event handlers are created and state is allocated to keep track of
|
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* slave. Note: if slave was already managed for master by
|
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* Tk_MaintainGeometry, then the previous information is replaced with
|
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* the new information. The caller must eventually call
|
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* Tk_UnmaintainGeometry to eliminate the correspondence (or, the state
|
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* is automatically freed when either window is destroyed).
|
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*
|
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*----------------------------------------------------------------------
|
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*/
|
||||
|
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void
|
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Tk_MaintainGeometry(
|
||||
Tk_Window slave, /* Slave for geometry management. */
|
||||
Tk_Window master, /* Master for slave; must be a descendant of
|
||||
* slave's parent. */
|
||||
int x, int y, /* Desired position of slave within master. */
|
||||
int width, int height) /* Desired dimensions for slave. */
|
||||
{
|
||||
Tcl_HashEntry *hPtr;
|
||||
MaintainMaster *masterPtr;
|
||||
register MaintainSlave *slavePtr;
|
||||
int isNew, map;
|
||||
Tk_Window ancestor, parent;
|
||||
TkDisplay *dispPtr = ((TkWindow *) master)->dispPtr;
|
||||
|
||||
if (master == Tk_Parent(slave)) {
|
||||
/*
|
||||
* If the slave is a direct descendant of the master, don't bother
|
||||
* setting up the extra infrastructure for management, just make a
|
||||
* call to Tk_MoveResizeWindow; the parent/child relationship will
|
||||
* take care of the rest.
|
||||
*/
|
||||
|
||||
Tk_MoveResizeWindow(slave, x, y, width, height);
|
||||
|
||||
/*
|
||||
* Map the slave if the master is already mapped; otherwise, wait
|
||||
* until the master is mapped later (in which case mapping the slave
|
||||
* is taken care of elsewhere).
|
||||
*/
|
||||
|
||||
if (Tk_IsMapped(master)) {
|
||||
Tk_MapWindow(slave);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
if (!dispPtr->geomInit) {
|
||||
dispPtr->geomInit = 1;
|
||||
Tcl_InitHashTable(&dispPtr->maintainHashTable, TCL_ONE_WORD_KEYS);
|
||||
}
|
||||
|
||||
/*
|
||||
* See if there is already a MaintainMaster structure for the master; if
|
||||
* not, then create one.
|
||||
*/
|
||||
|
||||
parent = Tk_Parent(slave);
|
||||
hPtr = Tcl_CreateHashEntry(&dispPtr->maintainHashTable,
|
||||
(char *) master, &isNew);
|
||||
if (!isNew) {
|
||||
masterPtr = Tcl_GetHashValue(hPtr);
|
||||
} else {
|
||||
masterPtr = ckalloc(sizeof(MaintainMaster));
|
||||
masterPtr->ancestor = master;
|
||||
masterPtr->checkScheduled = 0;
|
||||
masterPtr->slavePtr = NULL;
|
||||
Tcl_SetHashValue(hPtr, masterPtr);
|
||||
}
|
||||
|
||||
/*
|
||||
* Create a MaintainSlave structure for the slave if there isn't already
|
||||
* one.
|
||||
*/
|
||||
|
||||
for (slavePtr = masterPtr->slavePtr; slavePtr != NULL;
|
||||
slavePtr = slavePtr->nextPtr) {
|
||||
if (slavePtr->slave == slave) {
|
||||
goto gotSlave;
|
||||
}
|
||||
}
|
||||
slavePtr = ckalloc(sizeof(MaintainSlave));
|
||||
slavePtr->slave = slave;
|
||||
slavePtr->master = master;
|
||||
slavePtr->nextPtr = masterPtr->slavePtr;
|
||||
masterPtr->slavePtr = slavePtr;
|
||||
Tk_CreateEventHandler(slave, StructureNotifyMask, MaintainSlaveProc,
|
||||
slavePtr);
|
||||
|
||||
/*
|
||||
* Make sure that there are event handlers registered for all the windows
|
||||
* between master and slave's parent (including master but not slave's
|
||||
* parent). There may already be handlers for master and some of its
|
||||
* ancestors (masterPtr->ancestor tells how many).
|
||||
*/
|
||||
|
||||
for (ancestor = master; ancestor != parent;
|
||||
ancestor = Tk_Parent(ancestor)) {
|
||||
if (ancestor == masterPtr->ancestor) {
|
||||
Tk_CreateEventHandler(ancestor, StructureNotifyMask,
|
||||
MaintainMasterProc, masterPtr);
|
||||
masterPtr->ancestor = Tk_Parent(ancestor);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Fill in up-to-date information in the structure, then update the window
|
||||
* if it's not currently in the right place or state.
|
||||
*/
|
||||
|
||||
gotSlave:
|
||||
slavePtr->x = x;
|
||||
slavePtr->y = y;
|
||||
slavePtr->width = width;
|
||||
slavePtr->height = height;
|
||||
map = 1;
|
||||
for (ancestor = slavePtr->master; ; ancestor = Tk_Parent(ancestor)) {
|
||||
if (!Tk_IsMapped(ancestor) && (ancestor != parent)) {
|
||||
map = 0;
|
||||
}
|
||||
if (ancestor == parent) {
|
||||
if ((x != Tk_X(slavePtr->slave))
|
||||
|| (y != Tk_Y(slavePtr->slave))
|
||||
|| (width != Tk_Width(slavePtr->slave))
|
||||
|| (height != Tk_Height(slavePtr->slave))) {
|
||||
Tk_MoveResizeWindow(slavePtr->slave, x, y, width, height);
|
||||
}
|
||||
if (map) {
|
||||
Tk_MapWindow(slavePtr->slave);
|
||||
} else {
|
||||
Tk_UnmapWindow(slavePtr->slave);
|
||||
}
|
||||
break;
|
||||
}
|
||||
x += Tk_X(ancestor) + Tk_Changes(ancestor)->border_width;
|
||||
y += Tk_Y(ancestor) + Tk_Changes(ancestor)->border_width;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* Tk_UnmaintainGeometry --
|
||||
*
|
||||
* This procedure cancels a previous Tk_MaintainGeometry call, so that
|
||||
* the relationship between slave and master is no longer maintained.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* The slave is unmapped and state is released, so that slave won't track
|
||||
* master any more. If we weren't previously managing slave relative to
|
||||
* master, then this procedure has no effect.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
void
|
||||
Tk_UnmaintainGeometry(
|
||||
Tk_Window slave, /* Slave for geometry management. */
|
||||
Tk_Window master) /* Master for slave; must be a descendant of
|
||||
* slave's parent. */
|
||||
{
|
||||
Tcl_HashEntry *hPtr;
|
||||
MaintainMaster *masterPtr;
|
||||
register MaintainSlave *slavePtr, *prevPtr;
|
||||
Tk_Window ancestor;
|
||||
TkDisplay *dispPtr = ((TkWindow *) slave)->dispPtr;
|
||||
|
||||
if (master == Tk_Parent(slave)) {
|
||||
/*
|
||||
* If the slave is a direct descendant of the master,
|
||||
* Tk_MaintainGeometry will not have set up any of the extra
|
||||
* infrastructure. Don't even bother to look for it, just return.
|
||||
*/
|
||||
return;
|
||||
}
|
||||
|
||||
if (!dispPtr->geomInit) {
|
||||
dispPtr->geomInit = 1;
|
||||
Tcl_InitHashTable(&dispPtr->maintainHashTable, TCL_ONE_WORD_KEYS);
|
||||
}
|
||||
|
||||
if (!(((TkWindow *) slave)->flags & TK_ALREADY_DEAD)) {
|
||||
Tk_UnmapWindow(slave);
|
||||
}
|
||||
hPtr = Tcl_FindHashEntry(&dispPtr->maintainHashTable, (char *) master);
|
||||
if (hPtr == NULL) {
|
||||
return;
|
||||
}
|
||||
masterPtr = Tcl_GetHashValue(hPtr);
|
||||
slavePtr = masterPtr->slavePtr;
|
||||
if (slavePtr->slave == slave) {
|
||||
masterPtr->slavePtr = slavePtr->nextPtr;
|
||||
} else {
|
||||
for (prevPtr = slavePtr, slavePtr = slavePtr->nextPtr; ;
|
||||
prevPtr = slavePtr, slavePtr = slavePtr->nextPtr) {
|
||||
if (slavePtr == NULL) {
|
||||
return;
|
||||
}
|
||||
if (slavePtr->slave == slave) {
|
||||
prevPtr->nextPtr = slavePtr->nextPtr;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
Tk_DeleteEventHandler(slavePtr->slave, StructureNotifyMask,
|
||||
MaintainSlaveProc, slavePtr);
|
||||
ckfree(slavePtr);
|
||||
if (masterPtr->slavePtr == NULL) {
|
||||
if (masterPtr->ancestor != NULL) {
|
||||
for (ancestor = master; ; ancestor = Tk_Parent(ancestor)) {
|
||||
Tk_DeleteEventHandler(ancestor, StructureNotifyMask,
|
||||
MaintainMasterProc, masterPtr);
|
||||
if (ancestor == masterPtr->ancestor) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (masterPtr->checkScheduled) {
|
||||
Tcl_CancelIdleCall(MaintainCheckProc, masterPtr);
|
||||
}
|
||||
Tcl_DeleteHashEntry(hPtr);
|
||||
ckfree(masterPtr);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* MaintainMasterProc --
|
||||
*
|
||||
* This procedure is invoked by the Tk event dispatcher in response to
|
||||
* StructureNotify events on the master or one of its ancestors, on
|
||||
* behalf of Tk_MaintainGeometry.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* It schedules a call to MaintainCheckProc, which will eventually caused
|
||||
* the postions and mapped states to be recalculated for all the
|
||||
* maintained slaves of the master. Or, if the master window is being
|
||||
* deleted then state is cleaned up.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
static void
|
||||
MaintainMasterProc(
|
||||
ClientData clientData, /* Pointer to MaintainMaster structure for the
|
||||
* master window. */
|
||||
XEvent *eventPtr) /* Describes what just happened. */
|
||||
{
|
||||
MaintainMaster *masterPtr = clientData;
|
||||
MaintainSlave *slavePtr;
|
||||
int done;
|
||||
|
||||
if ((eventPtr->type == ConfigureNotify)
|
||||
|| (eventPtr->type == MapNotify)
|
||||
|| (eventPtr->type == UnmapNotify)) {
|
||||
if (!masterPtr->checkScheduled) {
|
||||
masterPtr->checkScheduled = 1;
|
||||
Tcl_DoWhenIdle(MaintainCheckProc, masterPtr);
|
||||
}
|
||||
} else if (eventPtr->type == DestroyNotify) {
|
||||
/*
|
||||
* Delete all of the state associated with this master, but be careful
|
||||
* not to use masterPtr after the last slave is deleted, since its
|
||||
* memory will have been freed.
|
||||
*/
|
||||
|
||||
done = 0;
|
||||
do {
|
||||
slavePtr = masterPtr->slavePtr;
|
||||
if (slavePtr->nextPtr == NULL) {
|
||||
done = 1;
|
||||
}
|
||||
Tk_UnmaintainGeometry(slavePtr->slave, slavePtr->master);
|
||||
} while (!done);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* MaintainSlaveProc --
|
||||
*
|
||||
* This procedure is invoked by the Tk event dispatcher in response to
|
||||
* StructureNotify events on a slave being managed by
|
||||
* Tk_MaintainGeometry.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* If the event is a DestroyNotify event then the Maintain state and
|
||||
* event handlers for this slave are deleted.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
static void
|
||||
MaintainSlaveProc(
|
||||
ClientData clientData, /* Pointer to MaintainSlave structure for
|
||||
* master-slave pair. */
|
||||
XEvent *eventPtr) /* Describes what just happened. */
|
||||
{
|
||||
MaintainSlave *slavePtr = clientData;
|
||||
|
||||
if (eventPtr->type == DestroyNotify) {
|
||||
Tk_UnmaintainGeometry(slavePtr->slave, slavePtr->master);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* MaintainCheckProc --
|
||||
*
|
||||
* This procedure is invoked by the Tk event dispatcher as an idle
|
||||
* handler, when a master or one of its ancestors has been reconfigured,
|
||||
* mapped, or unmapped. Its job is to scan all of the slaves for the
|
||||
* master and reposition them, map them, or unmap them as needed to
|
||||
* maintain their geometry relative to the master.
|
||||
*
|
||||
* Results:
|
||||
* None.
|
||||
*
|
||||
* Side effects:
|
||||
* Slaves can get repositioned, mapped, or unmapped.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
static void
|
||||
MaintainCheckProc(
|
||||
ClientData clientData) /* Pointer to MaintainMaster structure for the
|
||||
* master window. */
|
||||
{
|
||||
MaintainMaster *masterPtr = clientData;
|
||||
MaintainSlave *slavePtr;
|
||||
Tk_Window ancestor, parent;
|
||||
int x, y, map;
|
||||
|
||||
masterPtr->checkScheduled = 0;
|
||||
for (slavePtr = masterPtr->slavePtr; slavePtr != NULL;
|
||||
slavePtr = slavePtr->nextPtr) {
|
||||
parent = Tk_Parent(slavePtr->slave);
|
||||
x = slavePtr->x;
|
||||
y = slavePtr->y;
|
||||
map = 1;
|
||||
for (ancestor = slavePtr->master; ; ancestor = Tk_Parent(ancestor)) {
|
||||
if (!Tk_IsMapped(ancestor) && (ancestor != parent)) {
|
||||
map = 0;
|
||||
}
|
||||
if (ancestor == parent) {
|
||||
if ((x != Tk_X(slavePtr->slave))
|
||||
|| (y != Tk_Y(slavePtr->slave))) {
|
||||
Tk_MoveWindow(slavePtr->slave, x, y);
|
||||
}
|
||||
if (map) {
|
||||
Tk_MapWindow(slavePtr->slave);
|
||||
} else {
|
||||
Tk_UnmapWindow(slavePtr->slave);
|
||||
}
|
||||
break;
|
||||
}
|
||||
x += Tk_X(ancestor) + Tk_Changes(ancestor)->border_width;
|
||||
y += Tk_Y(ancestor) + Tk_Changes(ancestor)->border_width;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Local Variables:
|
||||
* mode: c
|
||||
* c-basic-offset: 4
|
||||
* fill-column: 78
|
||||
* End:
|
||||
*/
|
||||
Reference in New Issue
Block a user