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- /*
- * tkWm.c --
- *
- * This module takes care of the interactions between a Tk-based
- * application and the window manager. Among other things, it
- * implements the "wm" command and passes geometry information
- * to the window manager.
- *
- * Copyright (c) 1991-1993 The Regents of the University of California.
- * All rights reserved.
- *
- * Permission is hereby granted, without written agreement and without
- * license or royalty fees, to use, copy, modify, and distribute this
- * software and its documentation for any purpose, provided that the
- * above copyright notice and the following two paragraphs appear in
- * all copies of this software.
- *
- * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
- * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
- * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
- * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
-
- #ifndef lint
- static char rcsid[] = "$Header: /user6/ouster/wish/RCS/tkWm.c,v 1.68 93/07/08 10:47:11 ouster Exp $ SPRITE (Berkeley)";
- #endif
-
- #include "tkConfig.h"
- #include "tkInt.h"
- #include <errno.h>
-
- /*
- * A data structure of the following type holds information for
- * each window manager protocol (such as WM_DELETE_WINDOW) for
- * which a handler (i.e. a Tcl command) has been defined for a
- * particular top-level window.
- */
-
- typedef struct ProtocolHandler {
- Atom protocol; /* Identifies the protocol. */
- struct ProtocolHandler *nextPtr;
- /* Next in list of protocol handlers for
- * the same top-level window, or NULL for
- * end of list. */
- Tcl_Interp *interp; /* Interpreter in which to invoke command. */
- char command[4]; /* Tcl command to invoke when a client
- * message for this protocol arrives.
- * The actual size of the structure varies
- * to accommodate the needs of the actual
- * command. THIS MUST BE THE LAST FIELD OF
- * THE STRUCTURE. */
- } ProtocolHandler;
-
- #define HANDLER_SIZE(cmdLength) \
- ((unsigned) (sizeof(ProtocolHandler) - 3 + cmdLength))
-
- /*
- * A data structure of the following type holds window-manager-related
- * information for each top-level window in an application.
- */
-
- typedef struct TkWmInfo {
- TkWindow *winPtr; /* Pointer to main Tk information for
- * this window. */
- Window reparent; /* If the window has been reparented, this
- * gives the ID of the ancestor of the window
- * that is a child of the root window (may
- * not be window's immediate parent). If
- * the window isn't reparented, this has the
- * value None. */
- Tk_Uid titleUid; /* Title to display in window caption. If
- * NULL, use name of widget. */
- Tk_Uid iconName; /* Name to display in icon. */
- Window master; /* Master window for TRANSIENT_FOR property,
- * or None. */
- XWMHints hints; /* Various pieces of information for
- * window manager. */
- Tk_Uid leaderName; /* Path name of leader of window group
- * (corresponds to hints.window_group).
- * Note: this field doesn't get updated
- * if leader is destroyed. */
- Tk_Uid iconWindowName; /* Path name of window specified as icon
- * window for this window, or NULL. Note:
- * this field doesn't get updated if
- * iconWindowName is destroyed. */
- Tk_Uid masterWindowName; /* Path name of window specified as master
- * in "wm transient" command, or NULL.
- * Note: this field doesn't get updated if
- * masterWindowName is destroyed. */
- int withdrawn; /* Non-zero means window has been withdrawn. */
-
- /*
- * Information used to construct an XSizeHints structure for
- * the window manager:
- */
-
- int sizeHintsFlags; /* Flags word for XSizeHints structure.
- * If the PBaseSize flag is set then the
- * window is gridded; otherwise it isn't
- * gridded. */
- int minWidth, minHeight; /* Minimum dimensions of window, in
- * grid units, not pixels. */
- int maxWidth, maxHeight; /* Maximum dimensions of window, in
- * grid units, not pixels. */
- int widthInc, heightInc; /* Increments for size changes (# pixels
- * per step). */
- struct {
- int x; /* numerator */
- int y; /* denominator */
- } minAspect, maxAspect; /* Min/max aspect ratios for window. */
- int reqGridWidth, reqGridHeight;
- /* The dimensions of the window (in
- * grid units) requested through
- * the geometry manager. */
- int gravity; /* Desired window gravity. */
-
- /*
- * Information used to manage the size and location of a window.
- */
-
- int width, height; /* Desired dimensions of window, specified
- * in grid units. These values are
- * set by the "wm geometry" command and by
- * ConfigureNotify events (for when wm
- * resizes window). -1 means user hasn't
- * requested dimensions. */
- int x, y; /* Desired X and Y coordinates for window.
- * These values are set by "wm geometry",
- * plus by ConfigureNotify events (when wm
- * moves window). These numbers are
- * different than the numbers stored in
- * winPtr->changes because (a) they could be
- * measured from the right or bottom edge
- * of the screen (see WM_NEGATIVE_X and
- * WM_NEGATIVE_Y flags) and (b) if the window
- * has been reparented then they refer to the
- * parent rather than the window itself. */
- int parentWidth, parentHeight;
- /* Width and height of reparent, in pixels
- * *including border*. If window hasn't been
- * reparented then these will be the outer
- * dimensions of the window, including
- * border. */
- int xInParent, yInParent; /* Offset of window within reparent, measured
- * from upper-left outer corner of parent's
- * border to upper-left outer corner of child's
- * border. If not reparented then these are
- * zero. */
- int configWidth, configHeight;
- /* Dimensions passed to last request that we
- * issued to change geometry of window. Used
- * to eliminate redundant resize operations. */
-
- /*
- * Information about the virtual root window for this top-level,
- * if there is one.
- */
-
- Window vRoot; /* Virtual root window for this top-level,
- * or None if there is no virtual root
- * window (i.e. just use the screen's root). */
- int vRootX, vRootY; /* Position of the virtual root inside the
- * root window. If the WM_VROOT_OFFSET_STALE
- * flag is set then this information may be
- * incorrect and needs to be refreshed from
- * the X server. If vRoot is NULL then these
- * values are both 0. */
- unsigned int vRootWidth, vRootHeight;
- /* Dimensions of the virtual root window.
- * If vRoot is NULL, gives the dimensions
- * of the containing screen. This information
- * is never stale, even though vRootX and
- * vRootY can be. */
-
- /*
- * Miscellaneous information.
- */
-
- ProtocolHandler *protPtr; /* First in list of protocol handlers for
- * this window (NULL means none). */
- int cmdArgc; /* Number of elements in cmdArgv below. */
- char **cmdArgv; /* Array of strings to store in the
- * WM_COMMAND property. NULL means nothing
- * available. */
- char *clientMachine; /* String to store in WM_CLIENT_MACHINE
- * property, or NULL. */
- int flags; /* Miscellaneous flags, defined below. */
- struct TkWmInfo *nextPtr; /* Next in list of all top-level windows. */
- } WmInfo;
-
- /*
- * Flag values for WmInfo structures:
- *
- * WM_NEVER_MAPPED - non-zero means window has never been
- * mapped; need to update all info when
- * window is first mapped.
- * WM_UPDATE_PENDING - non-zero means a call to UpdateGeometryInfo
- * has already been scheduled for this
- * window; no need to schedule another one.
- * WM_NEGATIVE_X - non-zero means x-coordinate is measured in
- * pixels from right edge of screen, rather
- * than from left edge.
- * WM_NEGATIVE_Y - non-zero means y-coordinate is measured in
- * pixels up from bottom of screen, rather than
- * down from top.
- * WM_UPDATE_SIZE_HINTS - non-zero means that new size hints need to be
- * propagated to window manager.
- * WM_SYNC_PENDING - set to non-zero while waiting for the window
- * manager to respond to some state change.
- * WM_VROOT_OFFSET_STALE - non-zero means that (x,y) offset information
- * about the virtual root window is stale and
- * needs to be fetched fresh from the X server.
- * WM_ABOUT_TO_MAP - non-zero means that the window is about to
- * be mapped by TkWmMapWindow. This is used
- * by UpdateGeometryInfo to modify its behavior.
- * WM_MOVE_PENDING - non-zero means the application has requested
- * a new position for the window, but it hasn't
- * been reflected through the window manager
- * yet.
- */
-
- #define WM_NEVER_MAPPED 1
- #define WM_UPDATE_PENDING 2
- #define WM_NEGATIVE_X 4
- #define WM_NEGATIVE_Y 8
- #define WM_UPDATE_SIZE_HINTS 0x10
- #define WM_SYNC_PENDING 0x20
- #define WM_VROOT_OFFSET_STALE 0x40
- #define WM_ABOUT_TO_MAP 0x100
- #define WM_MOVE_PENDING 0x200
-
- /*
- * This module keeps a list of all top-level windows, primarily to
- * simplify the job of Tk_CoordsToWindow.
- */
-
- static WmInfo *firstWmPtr = NULL; /* Points to first top-level window. */
-
- #define IS_GRIDDED(wmPtr) ((wmPtr)->sizeHintsFlags & PBaseSize)
-
- /*
- * The variable below is used to enable or disable tracing in this
- * module. If tracing is enabled, then information is printed on
- * standard output about interesting interactions with the window
- * manager.
- */
-
- static int wmTracing = 0;
-
- /*
- * Forward declarations for procedures defined in this file:
- */
-
- static int ComputeReparentGeometry _ANSI_ARGS_((TkWindow *winPtr));
- static void ConfigureEvent _ANSI_ARGS_((TkWindow *winPtr,
- XConfigureEvent *eventPtr));
- static int ParseGeometry _ANSI_ARGS_((Tcl_Interp *interp,
- char *string, TkWindow *winPtr));
- static void ReparentEvent _ANSI_ARGS_((TkWindow *winPtr,
- XReparentEvent *eventPtr));
- static void TopLevelEventProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
- static void TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
- Tk_Window tkwin));
- static void UpdateGeometryInfo _ANSI_ARGS_((
- ClientData clientData));
- static void UpdateHints _ANSI_ARGS_((TkWindow *winPtr));
- static void UpdateSizeHints _ANSI_ARGS_((TkWindow *winPtr));
- static void UpdateVRootGeometry _ANSI_ARGS_((WmInfo *wmPtr));
- static void UpdateWmProtocols _ANSI_ARGS_((WmInfo *wmPtr));
- static void WaitForConfigureNotify _ANSI_ARGS_((TkWindow *winPtr,
- unsigned long serial));
- static int WaitForEvent _ANSI_ARGS_((Display *display,
- Window window, long mask, XEvent *eventPtr));
- static void WaitForMapNotify _ANSI_ARGS_((TkWindow *winPtr,
- int mapped));
-
- /*
- *--------------------------------------------------------------
- *
- * TkWmNewWindow --
- *
- * This procedure is invoked whenever a new top-level
- * window is created. Its job is to initialize the WmInfo
- * structure for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A WmInfo structure gets allocated and initialized.
- *
- *--------------------------------------------------------------
- */
-
- void
- TkWmNewWindow(winPtr)
- TkWindow *winPtr; /* Newly-created top-level window. */
- {
- register WmInfo *wmPtr;
-
- wmPtr = (WmInfo *) ckalloc(sizeof(WmInfo));
- wmPtr->winPtr = winPtr;
- wmPtr->reparent = None;
- wmPtr->titleUid = NULL;
- wmPtr->iconName = NULL;
- wmPtr->master = None;
- wmPtr->hints.flags = InputHint | StateHint;
- wmPtr->hints.input = True;
- wmPtr->hints.initial_state = NormalState;
- wmPtr->hints.icon_pixmap = None;
- wmPtr->hints.icon_window = None;
- wmPtr->hints.icon_x = wmPtr->hints.icon_y = 0;
- wmPtr->hints.icon_mask = None;
- wmPtr->hints.window_group = None;
- wmPtr->leaderName = NULL;
- wmPtr->iconWindowName = NULL;
- wmPtr->masterWindowName = NULL;
- wmPtr->withdrawn = 0;
- wmPtr->sizeHintsFlags = 0;
- wmPtr->minWidth = wmPtr->minHeight = 0;
- wmPtr->maxWidth = wmPtr->maxHeight = 10000;
- wmPtr->widthInc = wmPtr->heightInc = 1;
- wmPtr->minAspect.x = wmPtr->minAspect.y = 1;
- wmPtr->maxAspect.x = wmPtr->maxAspect.y = 1;
- wmPtr->reqGridWidth = wmPtr->reqGridHeight = -1;
- wmPtr->gravity = NorthWestGravity;
- wmPtr->width = -1;
- wmPtr->height = -1;
- wmPtr->x = winPtr->changes.x;
- wmPtr->y = winPtr->changes.y;
- wmPtr->parentWidth = winPtr->changes.width
- + 2*winPtr->changes.border_width;
- wmPtr->parentHeight = winPtr->changes.height
- + 2*winPtr->changes.border_width;
- wmPtr->xInParent = wmPtr->yInParent = 0;
- wmPtr->configWidth = -1;
- wmPtr->configHeight = -1;
- wmPtr->vRoot = None;
- wmPtr->protPtr = NULL;
- wmPtr->cmdArgv = NULL;
- wmPtr->clientMachine = NULL;
- wmPtr->flags = WM_NEVER_MAPPED;
- wmPtr->nextPtr = firstWmPtr;
- firstWmPtr = wmPtr;
- winPtr->wmInfoPtr = wmPtr;
-
- UpdateVRootGeometry(wmPtr);
-
- /*
- * Tk must monitor structure events for top-level windows, in order
- * to detect size and position changes caused by window managers.
- */
-
- Tk_CreateEventHandler((Tk_Window) winPtr, StructureNotifyMask,
- TopLevelEventProc, (ClientData) winPtr);
-
- /*
- * Arrange for geometry requests to be reflected from the window
- * to the window manager.
- */
-
- Tk_ManageGeometry((Tk_Window) winPtr, TopLevelReqProc, (ClientData) 0);
- }
-
- /*
- *--------------------------------------------------------------
- *
- * TkWmMapWindow --
- *
- * This procedure is invoked to map a top-level window. This
- * module gets a chance to update all window-manager-related
- * information in properties before the window manager sees
- * the map event and checks the properties. It also gets to
- * decide whether or not to even map the window after all.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Properties of winPtr may get updated to provide up-to-date
- * information to the window manager. The window may also get
- * mapped, but it may not be if this procedure decides that
- * isn't appropriate (e.g. because the window is withdrawn).
- *
- *--------------------------------------------------------------
- */
-
- void
- TkWmMapWindow(winPtr)
- TkWindow *winPtr; /* Top-level window that's about to
- * be mapped. */
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
- XTextProperty textProp;
-
- if (wmPtr->flags & WM_NEVER_MAPPED) {
- wmPtr->flags &= ~WM_NEVER_MAPPED;
-
- /*
- * This is the first time this window has ever been mapped.
- * Store all the window-manager-related information for the
- * window.
- */
-
- if (wmPtr->titleUid == NULL) {
- wmPtr->titleUid = winPtr->nameUid;
- }
- if (XStringListToTextProperty(&wmPtr->titleUid, 1, &textProp) != 0) {
- XSetWMName(winPtr->display, winPtr->window, &textProp);
- XFree((char *) textProp.value);
- }
-
- TkWmSetClass(winPtr);
-
- if (wmPtr->iconName != NULL) {
- XSetIconName(winPtr->display, winPtr->window, wmPtr->iconName);
- }
-
- if (wmPtr->master != None) {
- XSetTransientForHint(winPtr->display, winPtr->window,
- wmPtr->master);
- }
-
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- UpdateHints(winPtr);
- UpdateWmProtocols(wmPtr);
- if (wmPtr->cmdArgv != NULL) {
- XSetCommand(winPtr->display, winPtr->window, wmPtr->cmdArgv,
- wmPtr->cmdArgc);
- }
- if (wmPtr->clientMachine != NULL) {
- if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
- != 0) {
- XSetWMClientMachine(winPtr->display, winPtr->window,
- &textProp);
- XFree((char *) textProp.value);
- }
- }
- }
- if (wmPtr->hints.initial_state == WithdrawnState) {
- return;
- }
- wmPtr->flags |= WM_ABOUT_TO_MAP;
- if (wmPtr->flags & WM_UPDATE_PENDING) {
- Tk_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
- }
- UpdateGeometryInfo((ClientData) winPtr);
- wmPtr->flags &= ~WM_ABOUT_TO_MAP;
-
- /*
- * Map the window, then wait to be sure that the window manager has
- * processed the map operation.
- */
-
- XMapWindow(winPtr->display, winPtr->window);
- if (wmPtr->hints.initial_state == NormalState) {
- WaitForMapNotify(winPtr, 1);
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * TkWmUnmapWindow --
- *
- * This procedure is invoked to unmap a top-level window. The
- * only thing it does special is to wait for the window actually
- * to be unmapped.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Unmaps the window.
- *
- *--------------------------------------------------------------
- */
-
- void
- TkWmUnmapWindow(winPtr)
- TkWindow *winPtr; /* Top-level window that's about to
- * be mapped. */
- {
- /*
- * It seems to be important to wait after unmapping a top-level
- * window until the window really gets unmapped. I don't completely
- * understand all the interactions with the window manager, but if
- * we go on without waiting, and if the window is then mapped again
- * quickly, events seem to get lost so that we think the window isn't
- * mapped when in fact it is mapped. I suspect that this has something
- * to do with the window manager filtering Map events (and possily not
- * filtering Unmap events?).
- */
- XUnmapWindow(winPtr->display, winPtr->window);
- WaitForMapNotify(winPtr, 0);
- }
-
- /*
- *--------------------------------------------------------------
- *
- * TkWmDeadWindow --
- *
- * This procedure is invoked when a top-level window is
- * about to be deleted. It cleans up the wm-related data
- * structures for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The WmInfo structure for winPtr gets freed up.
- *
- *--------------------------------------------------------------
- */
-
- void
- TkWmDeadWindow(winPtr)
- TkWindow *winPtr; /* Top-level window that's being deleted. */
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
-
- if (wmPtr == NULL) {
- return;
- }
- if (firstWmPtr == wmPtr) {
- firstWmPtr = wmPtr->nextPtr;
- } else {
- register WmInfo *prevPtr;
-
- for (prevPtr = firstWmPtr; ; prevPtr = prevPtr->nextPtr) {
- if (prevPtr == NULL) {
- panic("couldn't unlink window in TkWmDeadWindow");
- }
- if (prevPtr->nextPtr == wmPtr) {
- prevPtr->nextPtr = wmPtr->nextPtr;
- break;
- }
- }
- }
- if (wmPtr->hints.flags & IconPixmapHint) {
- Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
- }
- if (wmPtr->hints.flags & IconMaskHint) {
- Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
- }
- while (wmPtr->protPtr != NULL) {
- ProtocolHandler *protPtr;
-
- protPtr = wmPtr->protPtr;
- wmPtr->protPtr = protPtr->nextPtr;
- Tk_EventuallyFree((ClientData) protPtr, (Tk_FreeProc *) free);
- }
- if (wmPtr->cmdArgv != NULL) {
- ckfree((char *) wmPtr->cmdArgv);
- }
- if (wmPtr->clientMachine != NULL) {
- ckfree((char *) wmPtr->clientMachine);
- }
- if (wmPtr->flags & WM_UPDATE_PENDING) {
- Tk_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
- }
- ckfree((char *) wmPtr);
- winPtr->wmInfoPtr = NULL;
- }
-
- /*
- *--------------------------------------------------------------
- *
- * TkWmSetClass --
- *
- * This procedure is invoked whenever a top-level window's
- * class is changed. If the window has been mapped then this
- * procedure updates the window manager property for the
- * class. If the window hasn't been mapped, the update is
- * deferred until just before the first mapping.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A window property may get updated.
- *
- *--------------------------------------------------------------
- */
-
- void
- TkWmSetClass(winPtr)
- TkWindow *winPtr; /* Newly-created top-level window. */
- {
- if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
- return;
- }
-
- if (winPtr->classUid != NULL) {
- XClassHint *classPtr;
-
- classPtr = XAllocClassHint();
- classPtr->res_name = winPtr->nameUid;
- classPtr->res_class = winPtr->classUid;
- XSetClassHint(winPtr->display, winPtr->window, classPtr);
- XFree((char *) classPtr);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_WmCmd --
- *
- * This procedure is invoked to process the "wm" Tcl command.
- * See the user documentation for details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
- int
- Tk_WmCmd(clientData, interp, argc, argv)
- ClientData clientData; /* Main window associated with
- * interpreter. */
- Tcl_Interp *interp; /* Current interpreter. */
- int argc; /* Number of arguments. */
- char **argv; /* Argument strings. */
- {
- Tk_Window tkwin = (Tk_Window) clientData;
- TkWindow *winPtr;
- register WmInfo *wmPtr;
- char c;
- int length;
-
- if (argc < 2) {
- wrongNumArgs:
- Tcl_AppendResult(interp, "wrong # args: should be \"",
- argv[0], " option window ?arg ...?\"", (char *) NULL);
- return TCL_ERROR;
- }
- c = argv[1][0];
- length = strlen(argv[1]);
- if ((c == 't') && (strncmp(argv[1], "tracing", length) == 0)
- && (length >= 3)) {
- if ((argc != 2) && (argc != 3)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " tracing ?boolean?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 2) {
- interp->result = (wmTracing) ? "on" : "off";
- return TCL_OK;
- }
- return Tcl_GetBoolean(interp, argv[2], &wmTracing);
- }
-
- if (argc < 3) {
- goto wrongNumArgs;
- }
- winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[2], tkwin);
- if (winPtr == NULL) {
- return TCL_ERROR;
- }
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- Tcl_AppendResult(interp, "window \"", winPtr->pathName,
- "\" isn't a top-level window", (char *) NULL);
- return TCL_ERROR;
- }
- wmPtr = winPtr->wmInfoPtr;
- if ((c == 'a') && (strncmp(argv[1], "aspect", length) == 0)) {
- int numer1, denom1, numer2, denom2;
-
- if ((argc != 3) && (argc != 7)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " aspect window ?minNumer minDenom ",
- "maxNumer maxDenom?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->sizeHintsFlags & PAspect) {
- sprintf(interp->result, "%d %d %d %d", wmPtr->minAspect.x,
- wmPtr->minAspect.y, wmPtr->maxAspect.x,
- wmPtr->maxAspect.y);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->sizeHintsFlags &= ~PAspect;
- } else {
- if ((Tcl_GetInt(interp, argv[3], &numer1) != TCL_OK)
- || (Tcl_GetInt(interp, argv[4], &denom1) != TCL_OK)
- || (Tcl_GetInt(interp, argv[5], &numer2) != TCL_OK)
- || (Tcl_GetInt(interp, argv[6], &denom2) != TCL_OK)) {
- return TCL_ERROR;
- }
- if ((numer1 <= 0) || (denom1 <= 0) || (numer2 <= 0) ||
- (denom2 <= 0)) {
- interp->result = "aspect number can't be <= 0";
- return TCL_ERROR;
- }
- wmPtr->minAspect.x = numer1;
- wmPtr->minAspect.y = denom1;
- wmPtr->maxAspect.x = numer2;
- wmPtr->maxAspect.y = denom2;
- wmPtr->sizeHintsFlags |= PAspect;
- }
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- goto updateGeom;
- } else if ((c == 'c') && (strncmp(argv[1], "client", length) == 0)
- && (length >= 2)) {
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " client window ?name?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->clientMachine != NULL) {
- interp->result = wmPtr->clientMachine;
- }
- return TCL_OK;
- }
- if (argv[3][0] == 0) {
- if (wmPtr->clientMachine != NULL) {
- ckfree((char *) wmPtr->clientMachine);
- wmPtr->clientMachine = NULL;
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XDeleteProperty(winPtr->display, winPtr->window,
- Tk_InternAtom((Tk_Window) winPtr,
- "WM_CLIENT_MACHINE"));
- }
- }
- return TCL_OK;
- }
- if (wmPtr->clientMachine != NULL) {
- ckfree((char *) wmPtr->clientMachine);
- }
- wmPtr->clientMachine = (char *)
- ckalloc((unsigned) (strlen(argv[3]) + 1));
- strcpy(wmPtr->clientMachine, argv[3]);
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XTextProperty textProp;
- if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
- != 0) {
- XSetWMClientMachine(winPtr->display, winPtr->window,
- &textProp);
- XFree((char *) textProp.value);
- }
- }
- } else if ((c == 'c') && (strncmp(argv[1], "command", length) == 0)
- && (length >= 2)) {
- int cmdArgc;
- char **cmdArgv;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " command window ?value?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->cmdArgv != NULL) {
- interp->result = Tcl_Merge(wmPtr->cmdArgc, wmPtr->cmdArgv);
- interp->freeProc = (Tcl_FreeProc *) free;
- }
- return TCL_OK;
- }
- if (argv[3][0] == 0) {
- if (wmPtr->cmdArgv != NULL) {
- ckfree((char *) wmPtr->cmdArgv);
- wmPtr->cmdArgv = NULL;
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XDeleteProperty(winPtr->display, winPtr->window,
- Tk_InternAtom((Tk_Window) winPtr, "WM_COMMAND"));
- }
- }
- return TCL_OK;
- }
- if (Tcl_SplitList(interp, argv[3], &cmdArgc, &cmdArgv) != TCL_OK) {
- return TCL_ERROR;
- }
- if (wmPtr->cmdArgv != NULL) {
- ckfree((char *) wmPtr->cmdArgv);
- }
- wmPtr->cmdArgc = cmdArgc;
- wmPtr->cmdArgv = cmdArgv;
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XSetCommand(winPtr->display, winPtr->window, cmdArgv, cmdArgc);
- }
- } else if ((c == 'd') && (strncmp(argv[1], "deiconify", length) == 0)) {
- if (argc != 3) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " deiconify window\"", (char *) NULL);
- return TCL_ERROR;
- }
- wmPtr->hints.initial_state = NormalState;
- wmPtr->withdrawn = 0;
- if (wmPtr->flags & WM_NEVER_MAPPED) {
- return TCL_OK;
- }
- UpdateHints(winPtr);
- Tk_MapWindow((Tk_Window) winPtr);
- } else if ((c == 'f') && (strncmp(argv[1], "focusmodel", length) == 0)
- && (length >= 2)) {
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " focusmodel window ?active|passive?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- interp->result = wmPtr->hints.input ? "passive" : "active";
- return TCL_OK;
- }
- c = argv[3][0];
- length = strlen(argv[3]);
- if ((c == 'a') && (strncmp(argv[3], "active", length) == 0)) {
- wmPtr->hints.input = False;
- } else if ((c == 'p') && (strncmp(argv[3], "passive", length) == 0)) {
- wmPtr->hints.input = True;
- } else {
- Tcl_AppendResult(interp, "bad argument \"", argv[3],
- "\": must be active or passive", (char *) NULL);
- return TCL_ERROR;
- }
- UpdateHints(winPtr);
- } else if ((c == 'f') && (strncmp(argv[1], "frame", length) == 0)
- && (length >= 2)) {
- Window window;
-
- if (argc != 3) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " frame window\"", (char *) NULL);
- return TCL_ERROR;
- }
- window = wmPtr->reparent;
- if (window == None) {
- window = Tk_WindowId((Tk_Window) winPtr);
- }
- sprintf(interp->result, "0x%x", window);
- } else if ((c == 'g') && (strncmp(argv[1], "geometry", length) == 0)
- && (length >= 2)) {
- char xSign, ySign;
- int width, height;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " geometry window ?newGeometry?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- xSign = (wmPtr->flags & WM_NEGATIVE_X) ? '-' : '+';
- ySign = (wmPtr->flags & WM_NEGATIVE_Y) ? '-' : '+';
- if (IS_GRIDDED(wmPtr)) {
- width = wmPtr->reqGridWidth + (winPtr->changes.width
- - winPtr->reqWidth)/wmPtr->widthInc;
- height = wmPtr->reqGridHeight + (winPtr->changes.height
- - winPtr->reqHeight)/wmPtr->heightInc;
- } else {
- width = winPtr->changes.width;
- height = winPtr->changes.height;
- }
- sprintf(interp->result, "%dx%d%c%d%c%d", width, height,
- xSign, wmPtr->x, ySign, wmPtr->y);
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->width = -1;
- wmPtr->height = -1;
- goto updateGeom;
- }
- return ParseGeometry(interp, argv[3], winPtr);
- } else if ((c == 'g') && (strncmp(argv[1], "grid", length) == 0)
- && (length >= 3)) {
- int reqWidth, reqHeight, widthInc, heightInc;
-
- if ((argc != 3) && (argc != 7)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " grid window ?baseWidth baseHeight ",
- "widthInc heightInc?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->sizeHintsFlags & PBaseSize) {
- sprintf(interp->result, "%d %d %d %d", wmPtr->reqGridWidth,
- wmPtr->reqGridHeight, wmPtr->widthInc,
- wmPtr->heightInc);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- /*
- * Turn off gridding and reset the width and height
- * to make sense as ungridded numbers.
- */
-
- wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
- wmPtr->widthInc = 1;
- wmPtr->heightInc = 1;
- if (wmPtr->width != -1) {
- wmPtr->width = winPtr->reqWidth + (wmPtr->width
- - wmPtr->reqGridWidth)*wmPtr->widthInc;
- wmPtr->height = winPtr->reqHeight + (wmPtr->height
- - wmPtr->reqGridHeight)*wmPtr->heightInc;
- }
- } else {
- if ((Tcl_GetInt(interp, argv[3], &reqWidth) != TCL_OK)
- || (Tcl_GetInt(interp, argv[4], &reqHeight) != TCL_OK)
- || (Tcl_GetInt(interp, argv[5], &widthInc) != TCL_OK)
- || (Tcl_GetInt(interp, argv[6], &heightInc) != TCL_OK)) {
- return TCL_ERROR;
- }
- if (reqWidth < 0) {
- interp->result = "baseWidth can't be < 0";
- return TCL_ERROR;
- }
- if (reqHeight < 0) {
- interp->result = "baseHeight can't be < 0";
- return TCL_ERROR;
- }
- if (widthInc < 0) {
- interp->result = "widthInc can't be < 0";
- return TCL_ERROR;
- }
- if (heightInc < 0) {
- interp->result = "heightInc can't be < 0";
- return TCL_ERROR;
- }
- Tk_SetGrid((Tk_Window) winPtr, reqWidth, reqHeight, widthInc,
- heightInc);
- }
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- goto updateGeom;
- } else if ((c == 'g') && (strncmp(argv[1], "group", length) == 0)
- && (length >= 3)) {
- Tk_Window tkwin2;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " group window ?pathName?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->hints.flags & WindowGroupHint) {
- interp->result = wmPtr->leaderName;
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->hints.flags &= ~WindowGroupHint;
- wmPtr->leaderName = NULL;
- } else {
- tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
- if (tkwin2 == NULL) {
- return TCL_ERROR;
- }
- Tk_MakeWindowExist(tkwin2);
- wmPtr->hints.window_group = Tk_WindowId(tkwin2);
- wmPtr->hints.flags |= WindowGroupHint;
- wmPtr->leaderName = Tk_PathName(tkwin2);
- }
- UpdateHints(winPtr);
- } else if ((c == 'i') && (strncmp(argv[1], "iconbitmap", length) == 0)
- && (length >= 5)) {
- Pixmap pixmap;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " iconbitmap window ?bitmap?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->hints.flags & IconPixmapHint) {
- interp->result = Tk_NameOfBitmap(winPtr->display,
- wmPtr->hints.icon_pixmap);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- if (wmPtr->hints.icon_pixmap != None) {
- Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
- }
- wmPtr->hints.flags &= ~IconPixmapHint;
- } else {
- pixmap = Tk_GetBitmap(interp, tkwin, Tk_GetUid(argv[3]));
- if (pixmap == None) {
- return TCL_ERROR;
- }
- wmPtr->hints.icon_pixmap = pixmap;
- wmPtr->hints.flags |= IconPixmapHint;
- }
- UpdateHints(winPtr);
- } else if ((c == 'i') && (strncmp(argv[1], "iconify", length) == 0)
- && (length >= 5)) {
- if (argc != 3) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " iconify window\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
- Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
- "\": override-redirect flag is set");
- return TCL_ERROR;
- }
- wmPtr->hints.initial_state = IconicState;
- if (wmPtr->flags & WM_NEVER_MAPPED) {
- return TCL_OK;
- }
- if (wmPtr->withdrawn) {
- UpdateHints(winPtr);
- Tk_MapWindow((Tk_Window) winPtr);
- wmPtr->withdrawn = 0;
- } else {
- if (XIconifyWindow(winPtr->display, winPtr->window,
- winPtr->screenNum) == 0) {
- interp->result =
- "couldn't send iconify message to window manager";
- return TCL_ERROR;
- }
- WaitForMapNotify(winPtr, 0);
- }
- } else if ((c == 'i') && (strncmp(argv[1], "iconmask", length) == 0)
- && (length >= 5)) {
- Pixmap pixmap;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " iconmask window ?bitmap?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->hints.flags & IconMaskHint) {
- interp->result = Tk_NameOfBitmap(winPtr->display,
- wmPtr->hints.icon_mask);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- if (wmPtr->hints.icon_mask != None) {
- Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
- }
- wmPtr->hints.flags &= ~IconMaskHint;
- } else {
- pixmap = Tk_GetBitmap(interp, tkwin, Tk_GetUid(argv[3]));
- if (pixmap == None) {
- return TCL_ERROR;
- }
- wmPtr->hints.icon_mask = pixmap;
- wmPtr->hints.flags |= IconMaskHint;
- }
- UpdateHints(winPtr);
- } else if ((c == 'i') && (strncmp(argv[1], "iconname", length) == 0)
- && (length >= 5)) {
- if (argc > 4) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " iconname window ?newName?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- interp->result = (wmPtr->iconName != NULL) ? wmPtr->iconName : "";
- return TCL_OK;
- } else {
- wmPtr->iconName = Tk_GetUid(argv[3]);
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XSetIconName(winPtr->display, winPtr->window, wmPtr->iconName);
- }
- }
- } else if ((c == 'i') && (strncmp(argv[1], "iconposition", length) == 0)
- && (length >= 5)) {
- int x, y;
-
- if ((argc != 3) && (argc != 5)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " iconposition window ?x y?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->hints.flags & IconPositionHint) {
- sprintf(interp->result, "%d %d", wmPtr->hints.icon_x,
- wmPtr->hints.icon_y);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->hints.flags &= ~IconPositionHint;
- } else {
- if ((Tcl_GetInt(interp, argv[3], &x) != TCL_OK)
- || (Tcl_GetInt(interp, argv[4], &y) != TCL_OK)){
- return TCL_ERROR;
- }
- wmPtr->hints.icon_x = x;
- wmPtr->hints.icon_y = y;
- wmPtr->hints.flags |= IconPositionHint;
- }
- UpdateHints(winPtr);
- } else if ((c == 'i') && (strncmp(argv[1], "iconwindow", length) == 0)
- && (length >= 5)) {
- Tk_Window tkwin2;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " iconwindow window ?pathName?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->hints.flags & IconWindowHint) {
- interp->result = wmPtr->iconWindowName;
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->hints.flags &= ~IconWindowHint;
- wmPtr->iconWindowName = NULL;
- } else {
- tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
- if (tkwin2 == NULL) {
- return TCL_ERROR;
- }
- Tk_MakeWindowExist(tkwin2);
- wmPtr->hints.icon_window = Tk_WindowId(tkwin2);
- wmPtr->hints.flags |= IconWindowHint;
- wmPtr->iconWindowName = Tk_PathName(tkwin2);
- }
- UpdateHints(winPtr);
- } else if ((c == 'm') && (strncmp(argv[1], "maxsize", length) == 0)
- && (length >= 2)) {
- int width, height;
- if ((argc != 3) && (argc != 5)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " maxsize window ?width height?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->sizeHintsFlags & PMaxSize) {
- sprintf(interp->result, "%d %d", wmPtr->maxWidth,
- wmPtr->maxHeight);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->sizeHintsFlags &= ~PMaxSize;
- } else {
- if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
- || (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
- return TCL_ERROR;
- }
- wmPtr->maxWidth = width;
- wmPtr->maxHeight = height;
- wmPtr->sizeHintsFlags |= PMaxSize;
- }
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- goto updateGeom;
- } else if ((c == 'm') && (strncmp(argv[1], "minsize", length) == 0)
- && (length >= 2)) {
- int width, height;
- if ((argc != 3) && (argc != 5)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " minsize window ?width height?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->sizeHintsFlags & PMinSize) {
- sprintf(interp->result, "%d %d", wmPtr->minWidth,
- wmPtr->minHeight);
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->sizeHintsFlags &= ~PMinSize;
- } else {
- if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
- || (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
- return TCL_ERROR;
- }
- wmPtr->minWidth = width;
- wmPtr->minHeight = height;
- wmPtr->sizeHintsFlags |= PMinSize;
- }
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- goto updateGeom;
- } else if ((c == 'o')
- && (strncmp(argv[1], "overrideredirect", length) == 0)) {
- int boolean;
- XSetWindowAttributes atts;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " overrideredirect window ?boolean?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
- interp->result = "1";
- } else {
- interp->result = "0";
- }
- return TCL_OK;
- }
- if (Tcl_GetBoolean(interp, argv[3], &boolean) != TCL_OK) {
- return TCL_ERROR;
- }
- atts.override_redirect = (boolean) ? True : False;
- Tk_ChangeWindowAttributes((Tk_Window) winPtr, CWOverrideRedirect,
- &atts);
- } else if ((c == 'p') && (strncmp(argv[1], "positionfrom", length) == 0)
- && (length >= 2)) {
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " positionfrom window ?user/program?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->sizeHintsFlags & USPosition) {
- interp->result = "user";
- } else if (wmPtr->sizeHintsFlags & PPosition) {
- interp->result = "program";
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->sizeHintsFlags &= ~(USPosition|PPosition);
- } else {
- c = argv[3][0];
- length = strlen(argv[3]);
- if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
- wmPtr->sizeHintsFlags &= ~PPosition;
- wmPtr->sizeHintsFlags |= USPosition;
- } else if ((c == 'p') && (strncmp(argv[3], "program", length) == 0)) {
- wmPtr->sizeHintsFlags &= ~USPosition;
- wmPtr->sizeHintsFlags |= PPosition;
- } else {
- Tcl_AppendResult(interp, "bad argument \"", argv[3],
- "\": must be program or user", (char *) NULL);
- return TCL_ERROR;
- }
- }
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- goto updateGeom;
- } else if ((c == 'p') && (strncmp(argv[1], "protocol", length) == 0)
- && (length >= 2)) {
- register ProtocolHandler *protPtr, *prevPtr;
- Atom protocol;
- int cmdLength;
-
- if ((argc < 3) || (argc > 5)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " protocol window ?name? ?command?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- /*
- * Return a list of all defined protocols for the window.
- */
- for (protPtr = wmPtr->protPtr; protPtr != NULL;
- protPtr = protPtr->nextPtr) {
- Tcl_AppendElement(interp,
- Tk_GetAtomName((Tk_Window) winPtr, protPtr->protocol));
- }
- return TCL_OK;
- }
- protocol = Tk_InternAtom((Tk_Window) winPtr, argv[3]);
- if (argc == 4) {
- /*
- * Return the command to handle a given protocol.
- */
- for (protPtr = wmPtr->protPtr; protPtr != NULL;
- protPtr = protPtr->nextPtr) {
- if (protPtr->protocol == protocol) {
- interp->result = protPtr->command;
- return TCL_OK;
- }
- }
- return TCL_OK;
- }
-
- /*
- * Delete any current protocol handler, then create a new
- * one with the specified command, unless the command is
- * empty.
- */
-
- for (protPtr = wmPtr->protPtr, prevPtr = NULL; protPtr != NULL;
- prevPtr = protPtr, protPtr = protPtr->nextPtr) {
- if (protPtr->protocol == protocol) {
- if (prevPtr == NULL) {
- wmPtr->protPtr = protPtr->nextPtr;
- } else {
- prevPtr->nextPtr = protPtr->nextPtr;
- }
- Tk_EventuallyFree((ClientData) protPtr, (Tk_FreeProc *) free);
- break;
- }
- }
- cmdLength = strlen(argv[4]);
- if (cmdLength > 0) {
- protPtr = (ProtocolHandler *) ckalloc(HANDLER_SIZE(cmdLength));
- protPtr->protocol = protocol;
- protPtr->nextPtr = wmPtr->protPtr;
- wmPtr->protPtr = protPtr;
- protPtr->interp = interp;
- strcpy(protPtr->command, argv[4]);
- }
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- UpdateWmProtocols(wmPtr);
- }
- } else if ((c == 's') && (strncmp(argv[1], "sizefrom", length) == 0)
- && (length >= 2)) {
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " sizefrom window ?user|program?\"",
- (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->sizeHintsFlags & USSize) {
- interp->result = "user";
- } else if (wmPtr->sizeHintsFlags & PSize) {
- interp->result = "program";
- }
- return TCL_OK;
- }
- if (*argv[3] == '\0') {
- wmPtr->sizeHintsFlags &= ~(USSize|PSize);
- } else {
- c = argv[3][0];
- length = strlen(argv[3]);
- if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
- wmPtr->sizeHintsFlags &= ~PSize;
- wmPtr->sizeHintsFlags |= USSize;
- } else if ((c == 'p')
- && (strncmp(argv[3], "program", length) == 0)) {
- wmPtr->sizeHintsFlags &= ~USSize;
- wmPtr->sizeHintsFlags |= PSize;
- } else {
- Tcl_AppendResult(interp, "bad argument \"", argv[3],
- "\": must be program or user", (char *) NULL);
- return TCL_ERROR;
- }
- }
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- goto updateGeom;
- } else if ((c == 's') && (strncmp(argv[1], "state", length) == 0)
- && (length >= 2)) {
- if (argc != 3) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " state window\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (wmPtr->withdrawn) {
- interp->result = "withdrawn";
- } else if (Tk_IsMapped((Tk_Window) winPtr)) {
- interp->result = "normal";
- } else {
- interp->result = "iconic";
- }
- } else if ((c == 't') && (strncmp(argv[1], "title", length) == 0)
- && (length >= 2)) {
- if (argc > 4) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " title window ?newTitle?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- interp->result = (wmPtr->titleUid != NULL) ? wmPtr->titleUid
- : winPtr->nameUid;
- return TCL_OK;
- } else {
- wmPtr->titleUid = Tk_GetUid(argv[3]);
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XTextProperty textProp;
-
- if (XStringListToTextProperty(&wmPtr->titleUid, 1,
- &textProp) != 0) {
- XSetWMName(winPtr->display, winPtr->window, &textProp);
- XFree((char *) textProp.value);
- }
- }
- }
- } else if ((c == 't') && (strncmp(argv[1], "transient", length) == 0)
- && (length >= 3)) {
- Tk_Window master;
-
- if ((argc != 3) && (argc != 4)) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " transient window ?master?\"", (char *) NULL);
- return TCL_ERROR;
- }
- if (argc == 3) {
- if (wmPtr->master != None) {
- interp->result = wmPtr->masterWindowName;
- }
- return TCL_OK;
- }
- if (argv[3][0] == '\0') {
- wmPtr->master = None;
- wmPtr->masterWindowName = NULL;
- } else {
- master = Tk_NameToWindow(interp, argv[3], tkwin);
- if (master == NULL) {
- return TCL_ERROR;
- }
- Tk_MakeWindowExist(master);
- wmPtr->master = Tk_WindowId(master);
- wmPtr->masterWindowName = Tk_PathName(master);
- }
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- XSetTransientForHint(winPtr->display, winPtr->window,
- wmPtr->master);
- }
- } else if ((c == 'w') && (strncmp(argv[1], "withdraw", length) == 0)) {
- if (argc != 3) {
- Tcl_AppendResult(interp, "wrong # arguments: must be \"",
- argv[0], " withdraw window\"", (char *) NULL);
- return TCL_ERROR;
- }
- wmPtr->hints.initial_state = WithdrawnState;
- wmPtr->withdrawn = 1;
- if (wmPtr->flags & WM_NEVER_MAPPED) {
- return TCL_OK;
- }
- if (XWithdrawWindow(winPtr->display, winPtr->window,
- winPtr->screenNum) == 0) {
- interp->result =
- "couldn't send withdraw message to window manager";
- return TCL_ERROR;
- }
- WaitForMapNotify(winPtr, 0);
- } else {
- Tcl_AppendResult(interp, "unknown or ambiguous option \"", argv[1],
- "\": must be aspect, client, command, deiconify, ",
- "focusmodel, frame, geometry, grid, group, iconbitmap, ",
- "iconify, iconmask, iconname, iconposition, ",
- "iconwindow, maxsize, minsize, overrideredirect, ",
- "positionfrom, protocol, sizefrom, state, title, ",
- "trace, transient, or withdraw",
- (char *) NULL);
- return TCL_ERROR;
- }
- return TCL_OK;
-
- updateGeom:
- if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
- Tk_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
- wmPtr->flags |= WM_UPDATE_PENDING;
- }
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_SetGrid --
- *
- * This procedure is invoked by a widget when it wishes to set a grid
- * coordinate system that controls the size of a top-level window.
- * It provides a C interface equivalent to the "wm grid" command and
- * is usually asscoiated with the -setgrid option.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Grid-related information will be passed to the window manager, so
- * that the top-level window associated with tkwin will resize on
- * even grid units.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc)
- Tk_Window tkwin; /* Token for window. New window mgr info
- * will be posted for the top-level window
- * associated with this window. */
- int reqWidth; /* Width (in grid units) corresponding to
- * the requested geometry for tkwin. */
- int reqHeight; /* Height (in grid units) corresponding to
- * the requested geometry for tkwin. */
- int widthInc, heightInc; /* Pixel increments corresponding to a
- * change of one grid unit. */
- {
- TkWindow *winPtr = (TkWindow *) tkwin;
- register WmInfo *wmPtr;
-
- /*
- * Find the top-level window for tkwin, plus the window manager
- * information.
- */
-
- while (!(winPtr->flags & TK_TOP_LEVEL)) {
- winPtr = winPtr->parentPtr;
- }
- wmPtr = winPtr->wmInfoPtr;
-
- if ((wmPtr->reqGridWidth == reqWidth)
- && (wmPtr->reqGridHeight == reqHeight)
- && (wmPtr->widthInc == widthInc)
- && (wmPtr->heightInc == heightInc)
- && ((wmPtr->sizeHintsFlags & (PBaseSize|PResizeInc))
- == PBaseSize|PResizeInc)) {
- return;
- }
-
- /*
- * If gridding was previously off, then forget about any window
- * size requests made by the user or via "wm geometry": these are
- * in pixel units and there's no easy way to translate them to
- * grid units since the new requested size of the top-level window in
- * pixels may not yet have been registered yet (it may filter up
- * the hierarchy in DoWhenIdle handlers).
- */
-
- if (!(wmPtr->sizeHintsFlags & PBaseSize)) {
- wmPtr->width = -1;
- wmPtr->height = -1;
- }
-
- /*
- * Set the new gridding information, and start the process of passing
- * all of this information to the window manager.
- */
-
- wmPtr->reqGridWidth = reqWidth;
- wmPtr->reqGridHeight = reqHeight;
- wmPtr->widthInc = widthInc;
- wmPtr->heightInc = heightInc;
- wmPtr->sizeHintsFlags |= PBaseSize|PResizeInc;
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
- Tk_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
- wmPtr->flags |= WM_UPDATE_PENDING;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * ConfigureEvent --
- *
- * This procedure is called to handle ConfigureNotify events on
- * top-level windows.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Information gets updated in the WmInfo structure for the window.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- ConfigureEvent(winPtr, configEventPtr)
- TkWindow *winPtr; /* Top-level window. */
- XConfigureEvent *configEventPtr; /* Event that just occurred for
- * winPtr. */
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
-
- /*
- * Update size information from the event. There are a couple of
- * tricky points here:
- *
- * 1. If the user changed the size externally then set wmPtr->width
- * and wmPtr->height just as if a "wm geometry" command had been
- * invoked with the same information.
- * 2. However, if the size is changing in response to a request
- * coming from us (WM_SYNC_PENDING is set), then don't set wmPtr->width
- * or wmPtr->height if they were previously -1 (otherwise the
- * window will stop tracking geometry manager requests).
- */
-
- if (((winPtr->changes.width != configEventPtr->width)
- || (winPtr->changes.height != configEventPtr->height))
- && !(wmPtr->flags & WM_SYNC_PENDING)){
- if (wmTracing) {
- printf("TopLevelEventProc: user changed %s size to %dx%d\n",
- winPtr->pathName, configEventPtr->width,
- configEventPtr->height);
- }
- if (IS_GRIDDED(wmPtr)) {
- wmPtr->width = wmPtr->reqGridWidth
- + (configEventPtr->width
- - winPtr->reqWidth)/wmPtr->widthInc;
- if (wmPtr->width < 0) {
- wmPtr->width = 0;
- }
- wmPtr->height = wmPtr->reqGridHeight
- + (configEventPtr->height
- - winPtr->reqHeight)/wmPtr->heightInc;
- if (wmPtr->height < 0) {
- wmPtr->height = 0;
- }
- } else {
- wmPtr->width = configEventPtr->width;
- wmPtr->height = configEventPtr->height;
- }
- wmPtr->configWidth = configEventPtr->width;
- wmPtr->configHeight = configEventPtr->height;
- }
-
- if (wmTracing) {
- printf("ConfigureEvent: %s x = %d y = %d, width = %d, height = %d",
- winPtr->pathName, configEventPtr->x, configEventPtr->y,
- configEventPtr->width, configEventPtr->height);
- printf(" send_event = %d, serial = %d\n", configEventPtr->send_event,
- configEventPtr->serial);
- }
- winPtr->changes.width = configEventPtr->width;
- winPtr->changes.height = configEventPtr->height;
- winPtr->changes.border_width = configEventPtr->border_width;
- winPtr->changes.sibling = configEventPtr->above;
- winPtr->changes.stack_mode = Above;
-
- /*
- * Reparenting window managers make life difficult. If the
- * window manager reparents a top-level window then the x and y
- * information that comes in events for the window is wrong:
- * it gives the location of the window inside its decorative
- * parent, rather than the location of the window in root
- * coordinates, which is what we want. Window managers
- * are supposed to send synthetic events with the correct
- * information, but ICCCM doesn't require them to do this
- * under all conditions, and the information provided doesn't
- * include everything we need here. So, the code below
- * maintains a bunch of information about the parent window.
- * If the window hasn't been reparented, we pretend that
- * there is a parent shrink-wrapped around the window.
- */
-
- if ((wmPtr->reparent == None) || !ComputeReparentGeometry(winPtr)) {
- wmPtr->parentWidth = configEventPtr->width
- + 2*configEventPtr->border_width;
- wmPtr->parentHeight = configEventPtr->height
- + 2*configEventPtr->border_width;
- winPtr->changes.x = wmPtr->x = configEventPtr->x;
- winPtr->changes.y = wmPtr->y = configEventPtr->y;
- if (wmPtr->flags & WM_NEGATIVE_X) {
- wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
- }
- if (wmPtr->flags & WM_NEGATIVE_Y) {
- wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
- }
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * ReparentEvent --
- *
- * This procedure is called to handle ReparentNotify events on
- * top-level windows.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Information gets updated in the WmInfo structure for the window.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- ReparentEvent(winPtr, reparentEventPtr)
- TkWindow *winPtr; /* Top-level window. */
- XReparentEvent *reparentEventPtr; /* Event that just occurred for
- * winPtr. */
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
- Window vRoot, ancestor, *children, dummy2, *virtualRootPtr;
- Atom actualType;
- int actualFormat;
- unsigned long numItems, bytesAfter;
- unsigned int dummy;
- Tk_ErrorHandler handler;
-
- /*
- * Identify the root window for winPtr. This is tricky because of
- * virtual root window managers like tvtwm. If the window has a
- * property named __SWM_ROOT or __WM_ROOT then this property gives
- * the id for a virtual root window that should be used instead of
- * the root window of the screen.
- */
-
- vRoot = RootWindow(winPtr->display, winPtr->screenNum);
- wmPtr->vRoot = None;
- if (((XGetWindowProperty(winPtr->display, winPtr->window,
- Tk_InternAtom((Tk_Window) winPtr, "__WM_ROOT"), 0, (long) 1,
- False, XA_WINDOW, &actualType, &actualFormat, &numItems,
- &bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
- && (actualType == XA_WINDOW))
- || ((XGetWindowProperty(winPtr->display, winPtr->window,
- Tk_InternAtom((Tk_Window) winPtr, "__SWM_ROOT"), 0, (long) 1,
- False, XA_WINDOW, &actualType, &actualFormat, &numItems,
- &bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
- && (actualType == XA_WINDOW))) {
- if ((actualFormat == 32) && (numItems == 1)) {
- vRoot = wmPtr->vRoot = *virtualRootPtr;
- } else if (wmTracing) {
- printf("%s format %d numItems %d\n",
- "ReparentEvent got bogus VROOT property:", actualFormat,
- numItems);
- }
- XFree((char *) virtualRootPtr);
- }
-
- if (wmTracing) {
- printf("ReparentEvent: %s reparented to 0x%x, vRoot = 0x%x\n",
- winPtr->pathName, reparentEventPtr->parent, vRoot);
- }
-
- /*
- * Fetch correct geometry information for the new virtual root.
- */
-
- UpdateVRootGeometry(wmPtr);
-
- /*
- * If the window's new parent is the root window, then mark it as
- * no longer reparented.
- */
-
- if (reparentEventPtr->parent == vRoot) {
- noReparent:
- wmPtr->reparent = None;
- wmPtr->parentWidth = winPtr->changes.width
- + 2*winPtr->changes.border_width;
- wmPtr->parentHeight = winPtr->changes.height
- + 2*winPtr->changes.border_width;
- wmPtr->xInParent = wmPtr->yInParent = 0;
- winPtr->changes.x = reparentEventPtr->x;
- winPtr->changes.y = reparentEventPtr->y;
- return;
- }
-
- /*
- * Search up the window hierarchy to find the ancestor of this
- * window that is just below the (virtual) root. This is tricky
- * because it's possible that things have changed since the event
- * was generated so that the ancestry indicated by the event no
- * longer exists. If this happens then an error will occur and
- * we just discard the event (there will be a more up-to-date
- * ReparentNotify event coming later).
- */
-
- handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
- (Tk_ErrorProc *) NULL, (ClientData) NULL);
- wmPtr->reparent = reparentEventPtr->parent;
- while (1) {
- if (XQueryTree(winPtr->display, wmPtr->reparent, &dummy2, &ancestor,
- &children, &dummy) == 0) {
- Tk_DeleteErrorHandler(handler);
- goto noReparent;
- }
- XFree((char *) children);
- if ((ancestor == vRoot) ||
- (ancestor == RootWindow(winPtr->display, winPtr->screenNum))) {
- break;
- }
- wmPtr->reparent = ancestor;
- }
- Tk_DeleteErrorHandler(handler);
-
- if (!ComputeReparentGeometry(winPtr)) {
- goto noReparent;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * ComputeReparentGeometry --
- *
- * This procedure is invoked to recompute geometry information
- * related to a reparented top-level window, such as the position
- * and total size of the parent and the position within it of
- * the top-level window.
- *
- * Results:
- * The return value is 1 if everything completed successfully
- * and 0 if an error occurred while querying information about
- * winPtr's parents. In this case winPtr is marked as no longer
- * being reparented.
- *
- * Side effects:
- * Geometry information in winPtr and winPtr->wmPtr gets updated.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- ComputeReparentGeometry(winPtr)
- TkWindow *winPtr; /* Top-level window whose reparent info
- * is to be recomputed. */
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
- unsigned int width, height, bd, dummy;
- int xOffset, yOffset, x, y;
- Window dummy2;
- Status status;
- Tk_ErrorHandler handler;
-
- handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
- (Tk_ErrorProc *) NULL, (ClientData) NULL);
- (void) XTranslateCoordinates(winPtr->display, winPtr->window,
- wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2);
- status = XGetGeometry(winPtr->display, wmPtr->reparent,
- &dummy2, &x, &y, &width, &height, &bd, &dummy);
- Tk_DeleteErrorHandler(handler);
- if (status == 0) {
- /*
- * It appears that the reparented parent went away and
- * no-one told us. Reset the window to indicate that
- * it's not reparented.
- */
- wmPtr->reparent = None;
- wmPtr->xInParent = wmPtr->yInParent = 0;
- return 0;
- }
- wmPtr->xInParent = xOffset + bd - winPtr->changes.border_width;
- wmPtr->yInParent = yOffset + bd - winPtr->changes.border_width;
- wmPtr->parentWidth = width + 2*bd;
- wmPtr->parentHeight = height + 2*bd;
-
- /*
- * Some tricky issues in updating wmPtr->x and wmPtr->y:
- *
- * 1. Don't update them if the event occurred because of something
- * we did (i.e. WM_SYNC_PENDING and WM_MOVE_PENDING are both set).
- * This is because window managers treat coords differently than Tk,
- * and no two window managers are alike. If the window manager moved
- * the window because we told it to, remember the coordinates we told
- * it, not the ones it actually moved it to. This allows us to move
- * the window back to the same coordinates later and get the same
- * result. Without this check, windows can "walk" across the screen
- * under some conditions.
- *
- * 2. Don't update wmPtr->x and wmPtr->y unless winPtr->changes.x
- * or winPtr->changes.y has changed (otherwise a size change can
- * spoof us into thinking that the position changed too and defeat
- * the intent of (1) above.
- *
- * 3. Ignore size changes coming from the window system if we're
- * about to change the size ourselves but haven't seen the event for
- * it yet: our size change is supposed to take priority.
- */
-
- if (!(wmPtr->flags & WM_MOVE_PENDING)
- && ((winPtr->changes.x != (x + wmPtr->xInParent))
- || (winPtr->changes.y != (y + wmPtr->yInParent)))) {
- wmPtr->x = x;
- if (wmPtr->flags & WM_NEGATIVE_X) {
- wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
- }
- wmPtr->y = y;
- if (wmPtr->flags & WM_NEGATIVE_Y) {
- wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
- }
- }
-
- winPtr->changes.x = x + wmPtr->xInParent;
- winPtr->changes.y = y + wmPtr->yInParent;
- if (wmTracing) {
- printf("winPtr coords %d,%d, wmPtr coords %d,%d, offsets %d %d\n",
- winPtr->changes.x, winPtr->changes.y, wmPtr->x, wmPtr->y,
- wmPtr->xInParent, wmPtr->yInParent);
- }
- return 1;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TopLevelEventProc --
- *
- * This procedure is invoked when a top-level (or other externally-
- * managed window) is restructured in any way.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Tk's internal data structures for the window get modified to
- * reflect the structural change.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- TopLevelEventProc(clientData, eventPtr)
- ClientData clientData; /* Window for which event occurred. */
- XEvent *eventPtr; /* Event that just happened. */
- {
- register TkWindow *winPtr = (TkWindow *) clientData;
-
- winPtr->wmInfoPtr->flags |= WM_VROOT_OFFSET_STALE;
- if (eventPtr->type == DestroyNotify) {
- if (!(winPtr->flags & TK_ALREADY_DEAD)) {
- Tk_DestroyWindow((Tk_Window) winPtr);
- }
- if (wmTracing) {
- printf("TopLevelEventProc: %s deleted\n", winPtr->pathName);
- }
- } else if (eventPtr->type == ConfigureNotify) {
- ConfigureEvent(winPtr, &eventPtr->xconfigure);
- } else if (eventPtr->type == MapNotify) {
- winPtr->flags |= TK_MAPPED;
- if (wmTracing) {
- printf("TopLevelEventProc: %s mapped\n", winPtr->pathName);
- }
- } else if (eventPtr->type == UnmapNotify) {
- winPtr->flags &= ~TK_MAPPED;
- if (wmTracing) {
- printf("TopLevelEventProc: %s unmapped\n", winPtr->pathName);
- }
- } else if (eventPtr->type == ReparentNotify) {
- ReparentEvent(winPtr, &eventPtr->xreparent);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TopLevelReqProc --
- *
- * This procedure is invoked by the geometry manager whenever
- * the requested size for a top-level window is changed.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Arrange for the window to be resized to satisfy the request
- * (this happens as a when-idle action).
- *
- *----------------------------------------------------------------------
- */
-
- /* ARGSUSED */
- static void
- TopLevelReqProc(dummy, tkwin)
- ClientData dummy; /* Not used. */
- Tk_Window tkwin; /* Information about window. */
- {
- TkWindow *winPtr = (TkWindow *) tkwin;
- WmInfo *wmPtr;
-
- wmPtr = winPtr->wmInfoPtr;
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
- Tk_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
- wmPtr->flags |= WM_UPDATE_PENDING;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * UpdateGeometryInfo --
- *
- * This procedure is invoked when a top-level window is first
- * mapped, and also as a when-idle procedure, to bring the
- * geometry and/or position of a top-level window back into
- * line with what has been requested by the user and/or widgets.
- * This procedure doesn't return until the window manager has
- * responded to the geometry change.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The window's size and location may change, unless the WM prevents
- * that from happening.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- UpdateGeometryInfo(clientData)
- ClientData clientData; /* Pointer to the window's record. */
- {
- register TkWindow *winPtr = (TkWindow *) clientData;
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
- int x, y, width, height;
- unsigned long serial;
-
- wmPtr->flags &= ~WM_UPDATE_PENDING;
-
- /*
- * Compute the new size for the top-level window. See the
- * user documentation for details on this, but the size
- * requested depends on (a) the size requested internally
- * by the window's widgets, (b) the size requested by the
- * user in a "wm geometry" command or via wm-based interactive
- * resizing (if any), and (c) whether or not the window is
- * gridded. Don't permit sizes <= 0 because this upsets
- * the X server.
- */
-
- if (wmPtr->width == -1) {
- width = winPtr->reqWidth;
- height = winPtr->reqHeight;
- } else if (IS_GRIDDED(wmPtr)) {
- width = winPtr->reqWidth
- + (wmPtr->width - wmPtr->reqGridWidth)*wmPtr->widthInc;
- height = winPtr->reqHeight
- + (wmPtr->height - wmPtr->reqGridHeight)*wmPtr->heightInc;
- } else {
- width = wmPtr->width;
- height = wmPtr->height;
- }
- if (width <= 0) {
- width = 1;
- }
- if (height <= 0) {
- height = 1;
- }
-
- /*
- * Compute the new position for the upper-left pixel of the window's
- * decorative frame. This is tricky, because we need to include the
- * border widths supplied by a reparented parent in this calculation,
- * but can't use the parent's current overall size since that may
- * change as a result of this code.
- */
-
- if (wmPtr->flags & WM_NEGATIVE_X) {
- x = wmPtr->vRootWidth - wmPtr->x
- - (width + (wmPtr->parentWidth - winPtr->changes.width));
- } else {
- x = wmPtr->x;
- }
- if (wmPtr->flags & WM_NEGATIVE_Y) {
- y = wmPtr->vRootHeight - wmPtr->y
- - (height + (wmPtr->parentHeight - winPtr->changes.height));
- } else {
- y = wmPtr->y;
- }
-
- /*
- * If the window's size is going to change and the window is
- * supposed to not be resizable by the user, then we have to
- * update the size hints. There may also be a size-hint-update
- * request pending from somewhere else, too.
- */
-
- if (((width != winPtr->changes.width)
- || (height != winPtr->changes.height))
- && !IS_GRIDDED(wmPtr)
- && ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) {
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- }
- if (wmPtr->flags & WM_UPDATE_SIZE_HINTS) {
- UpdateSizeHints(winPtr);
- }
-
- /*
- * Reconfigure the window if it isn't already configured correctly.
- * A few tricky points:
- *
- * 1. Sometimes the window manager will give us a different size
- * than we asked for (e.g. mwm has a minimum size for windows), so
- * base the size check on what we *asked for* last time, not what we
- * got.
- * 2. Can't just reconfigure always, because we may not get a
- * ConfigureNotify event back if nothing changed, so
- * WaitForConfigureNotify will hang a long time.
- * 3. Don't move window unless a new position has been requested for
- * it. This is because of "features" in some window managers (e.g.
- * twm, as of 4/24/91) where they don't interpret coordinates
- * according to ICCCM. Moving a window to its current location may
- * cause it to shift position on the screen.
- */
-
- serial = NextRequest(winPtr->display);
- if (wmPtr->flags & WM_MOVE_PENDING) {
- wmPtr->configWidth = width;
- wmPtr->configHeight = height;
- if (wmTracing) {
- printf("UpdateGeometryInfo moving to %d %d, resizing to %d x %d,\n",
- x, y, width, height);
- }
- Tk_MoveResizeWindow((Tk_Window) winPtr, x, y, (unsigned) width,
- (unsigned) height);
- } else if ((width != wmPtr->configWidth)
- || (height != wmPtr->configHeight)) {
- wmPtr->configWidth = width;
- wmPtr->configHeight = height;
- if (wmTracing) {
- printf("UpdateGeometryInfo resizing to %d x %d\n", width, height);
- }
- Tk_ResizeWindow((Tk_Window) winPtr, (unsigned) width,
- (unsigned) height);
- } else {
- return;
- }
-
- /*
- * Wait for the configure operation to complete. Don't need to do
- * this, however, if the window is about to be mapped: it will be
- * taken care of elsewhere.
- */
-
- if (!(wmPtr->flags & WM_ABOUT_TO_MAP)) {
- WaitForConfigureNotify(winPtr, serial);
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * UpdateSizeHints --
- *
- * This procedure is called to update the window manager's
- * size hints information from the information in a WmInfo
- * structure.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Properties get changed for winPtr.
- *
- *--------------------------------------------------------------
- */
-
- static void
- UpdateSizeHints(winPtr)
- TkWindow *winPtr;
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
- XSizeHints *hintsPtr;
-
- wmPtr->flags &= ~WM_UPDATE_SIZE_HINTS;
-
- hintsPtr = XAllocSizeHints();
- if (hintsPtr == NULL) {
- return;
- }
-
- /*
- * Compute the pixel-based sizes for the various fields in the
- * size hints structure, based on the grid-based sizes in
- * our structure.
- */
-
- if (IS_GRIDDED(wmPtr)) {
- hintsPtr->base_width = winPtr->reqWidth
- - (wmPtr->reqGridWidth * wmPtr->widthInc);
- if (hintsPtr->base_width < 0) {
- hintsPtr->base_width = 0;
- }
- hintsPtr->base_height = winPtr->reqHeight
- - (wmPtr->reqGridHeight * wmPtr->heightInc);
- if (hintsPtr->base_height < 0) {
- hintsPtr->base_height = 0;
- }
- hintsPtr->min_width = hintsPtr->base_width
- + (wmPtr->minWidth * wmPtr->widthInc);
- hintsPtr->min_height = hintsPtr->base_height
- + (wmPtr->minHeight * wmPtr->heightInc);
- hintsPtr->max_width = hintsPtr->base_width
- + (wmPtr->maxWidth * wmPtr->widthInc);
- hintsPtr->max_height = hintsPtr->base_height
- + (wmPtr->maxHeight * wmPtr->heightInc);
- } else {
- hintsPtr->min_width = wmPtr->minWidth;
- hintsPtr->min_height = wmPtr->minHeight;
- hintsPtr->max_width = wmPtr->maxWidth;
- hintsPtr->max_height = wmPtr->maxHeight;
- hintsPtr->base_width = 0;
- hintsPtr->base_height = 0;
- }
- hintsPtr->width_inc = wmPtr->widthInc;
- hintsPtr->height_inc = wmPtr->heightInc;
- hintsPtr->min_aspect.x = wmPtr->minAspect.x;
- hintsPtr->min_aspect.y = wmPtr->minAspect.y;
- hintsPtr->max_aspect.x = wmPtr->maxAspect.x;
- hintsPtr->max_aspect.y = wmPtr->maxAspect.y;
- hintsPtr->win_gravity = wmPtr->gravity;
- hintsPtr->flags = wmPtr->sizeHintsFlags;
-
- /*
- * If a window is non-gridded and no minimum or maximum size has
- * been specified, don't let the window be resized at all.
- */
-
- if (!IS_GRIDDED(wmPtr)
- && ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) {
- int width, height;
-
- width = wmPtr->width;
- height = wmPtr->height;
- if (width < 0) {
- width = winPtr->reqWidth;
- height = winPtr->reqHeight;
- }
- hintsPtr->min_width = hintsPtr->max_width = width;
- hintsPtr->min_height = hintsPtr->max_height = height;
- hintsPtr->flags |= PMinSize|PMaxSize;
- }
-
- /*
- * If min or max size isn't specified, fill in with extreme values
- * rather than leaving unspecified. Otherwise window manager may
- * do someting counter-intuitive like the last value ever specified.
- */
-
- if (!(hintsPtr->flags & PMinSize)) {
- hintsPtr->min_width = hintsPtr->min_height = 0;
- hintsPtr->flags |= PMinSize;
- }
- if (!(hintsPtr->flags & PMaxSize)) {
- /*
- * Set the maximum size to the display dimensions, minus a guess
- * about how much space is needed for window manager decorations.
- */
-
- hintsPtr->max_width =
- DisplayWidth(winPtr->display, winPtr->screenNum) - 15;
- hintsPtr->max_height =
- DisplayHeight(winPtr->display, winPtr->screenNum) - 30;
- hintsPtr->flags |= PMaxSize;
- }
-
- XSetWMNormalHints(winPtr->display, winPtr->window, hintsPtr);
-
- XFree((char *) hintsPtr);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * WaitForConfigureNotify --
- *
- * This procedure is invoked in order to synchronize with the
- * window manager. It waits for a ConfigureNotify event to
- * arrive, signalling that the window manager has seen an attempt
- * on our part to move or resize a top-level window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Delays the execution of the process until a ConfigureNotify event
- * arrives with serial number at least as great as serial. This
- * is useful for two reasons:
- *
- * 1. It's important to distinguish ConfigureNotify events that are
- * coming in response to a request we've made from those generated
- * spontaneously by the user. The reason for this is that if the
- * user resizes the window we take that as an order to ignore
- * geometry requests coming from inside the window hierarchy. If
- * we accidentally interpret a response to our request as a
- * user-initiated action, the window will stop responding to
- * new geometry requests. To make this distinction, (a) this
- * procedure sets a flag for TopLevelEventProc to indicate that
- * we're waiting to sync with the wm, and (b) all changes to
- * the size of a top-level window are followed by calls to this
- * procedure.
- * 2. Races and confusion can come about if there are multiple
- * operations outstanding at a time (e.g. two different resizes
- * of the top-level window: it's hard to tell which of the
- * ConfigureNotify events coming back is for which request).
- * While waiting, all events covered by StructureNotifyMask are
- * processed and all others are deferred.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- WaitForConfigureNotify(winPtr, serial)
- TkWindow *winPtr; /* Top-level window for which we want
- * to see a ConfigureNotify. */
- unsigned long serial; /* Serial number of resize request. Want to
- * be sure wm has seen this. */
- {
- WmInfo *wmPtr = winPtr->wmInfoPtr;
- XEvent event;
- int diff;
- int gotConfig = 0;
-
- /*
- * One more tricky detail about this procedure. In some cases the
- * window manager will decide to ignore a configure request (e.g.
- * because it thinks the window is already in the right place).
- * To avoid hanging in this situation, only wait for a few seconds,
- * then give up.
- */
-
- while (!gotConfig) {
- if (WaitForEvent(winPtr->display, winPtr->window, StructureNotifyMask,
- &event) != TCL_OK) {
- if (wmTracing) {
- printf("WaitForConfigureNotify giving up on %s\n",
- winPtr->pathName);
- }
- break;
- }
- wmPtr->flags |= WM_SYNC_PENDING;
- Tk_HandleEvent(&event);
- wmPtr->flags &= ~WM_SYNC_PENDING;
- if (event.type == ConfigureNotify) {
- diff = event.xconfigure.serial - serial;
- if (diff >= 0) {
- gotConfig = 1;
- }
- }
- }
- wmPtr->flags &= ~WM_MOVE_PENDING;
- if (wmTracing) {
- printf("WaitForConfigureNotify finished with %s, serial %d\n",
- winPtr->pathName, serial);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * WaitForEvent --
- *
- * This procedure is used by WaitForConfigureNotify and
- * WaitForMapNotify to wait for an event of a certain type
- * to arrive.
- *
- * Results:
- * Under normal conditions, TCL_OK is returned and an event for
- * display and window that matches "mask" is stored in *eventPtr.
- * If a long time goes by with no event of the right type arriving,
- * or if an error occurs while waiting for the event to arrive,
- * then TCL_ERROR is returned.
- *
- * Side effects:
- * Events are removed from the display's event queue. Time goes by.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- WaitForEvent(display, window, mask, eventPtr)
- Display *display; /* Display event is coming from. */
- Window window; /* Window for which event is desired. */
- long mask; /* Selects events of interest. */
- XEvent *eventPtr; /* Place to store event. */
- {
- #define TIMEOUT_SECS 5
- fd_mask masks[MASK_SIZE];
- struct timeval timeout, startTime, curTime;
- int i, numFound, fd;
-
- for (i = 0; i < MASK_SIZE; i++) {
- masks[i] = 0;
- }
- fd = ConnectionNumber(display);
- (void) gettimeofday(&startTime, (struct timezone *) NULL);
- while (1) {
- if (XCheckWindowEvent(display, window, mask, eventPtr)) {
- return TCL_OK;
- }
- masks[fd/(NBBY*sizeof(fd_mask))] = 1 << fd%(NBBY*sizeof(fd_mask));
- timeout.tv_sec = 1;
- timeout.tv_usec = 0;
- numFound = select(fd+1, (SELECT_MASK *) masks,
- (SELECT_MASK *) NULL, (SELECT_MASK *) NULL,
- &timeout);
- if ((numFound == -1) && (errno != EINTR)) {
- return TCL_ERROR;
- }
- (void) gettimeofday(&curTime, (struct timezone *) NULL);
- i = curTime.tv_sec - startTime.tv_sec;
- if (i >= 5) {
- return TCL_ERROR;
- }
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * WaitForMapNotify --
- *
- * This procedure is invoked in order to synchronize with the
- * window manager. It waits for the window's mapped state to
- * reach the value given by mapped.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Delays the execution of the process until winPtr becomes mapped
- * or unmapped, depending on the "mapped" argument. This allows us
- * to synchronize with the window manager, and allows us to
- * identify changes in window size that come about when the window
- * manager first starts managing the window (as opposed to those
- * requested interactively by the user later). See the comments
- * for WaitForConfigureNotify and WM_SYNC_PENDING. While waiting,
- * all events covered by StructureNotifyMask are processed and all
- * others are deferred.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- WaitForMapNotify(winPtr, mapped)
- TkWindow *winPtr; /* Top-level window for which we want
- * to see a particular mapping state. */
- int mapped; /* If non-zero, wait for window to become
- * mapped, otherwise wait for it to become
- * unmapped. */
- {
- WmInfo *wmPtr = winPtr->wmInfoPtr;
- XEvent event;
-
- while (1) {
- if (mapped) {
- if (winPtr->flags & TK_MAPPED) {
- break;
- }
- } else if (!(winPtr->flags & TK_MAPPED)) {
- break;
- }
- if (WaitForEvent(winPtr->display, winPtr->window, StructureNotifyMask,
- &event) != TCL_OK) {
- /*
- * There are some bizarre situations in which the window
- * manager can't respond or chooses not to (e.g. if we've
- * got a grab set it can't respond). If this happens then
- * just quit.
- */
-
- if (wmTracing) {
- printf("WaitForMapNotify giving up on %s\n", winPtr->pathName);
- }
- break;
- }
- wmPtr->flags |= WM_SYNC_PENDING;
- Tk_HandleEvent(&event);
- wmPtr->flags &= ~WM_SYNC_PENDING;
- }
- wmPtr->flags &= ~WM_MOVE_PENDING;
- if (wmTracing) {
- printf("WaitForMapNotify finished with %s\n", winPtr->pathName);
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * UpdateHints --
- *
- * This procedure is called to update the window manager's
- * hints information from the information in a WmInfo
- * structure.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Properties get changed for winPtr.
- *
- *--------------------------------------------------------------
- */
-
- static void
- UpdateHints(winPtr)
- TkWindow *winPtr;
- {
- WmInfo *wmPtr = winPtr->wmInfoPtr;
-
- if (wmPtr->flags & WM_NEVER_MAPPED) {
- return;
- }
- XSetWMHints(winPtr->display, winPtr->window, &wmPtr->hints);
- }
-
- /*
- *--------------------------------------------------------------
- *
- * ParseGeometry --
- *
- * This procedure parses a geometry string and updates
- * information used to control the geometry of a top-level
- * window.
- *
- * Results:
- * A standard Tcl return value, plus an error message in
- * interp->result if an error occurs.
- *
- * Side effects:
- * The size and/or location of winPtr may change.
- *
- *--------------------------------------------------------------
- */
-
- static int
- ParseGeometry(interp, string, winPtr)
- Tcl_Interp *interp; /* Used for error reporting. */
- char *string; /* String containing new geometry. Has the
- * standard form "=wxh+x+y". */
- TkWindow *winPtr; /* Pointer to top-level window whose
- * geometry is to be changed. */
- {
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
- int x, y, width, height, flags;
- char *end;
- register char *p = string;
-
- /*
- * The leading "=" is optional.
- */
-
- if (*p == '=') {
- p++;
- }
-
- /*
- * Parse the width and height, if they are present. Don't
- * actually update any of the fields of wmPtr until we've
- * successfully parsed the entire geometry string.
- */
-
- width = wmPtr->width;
- height = wmPtr->height;
- x = wmPtr->x;
- y = wmPtr->y;
- flags = wmPtr->flags;
- if (isdigit(*p)) {
- width = strtoul(p, &end, 10);
- p = end;
- if (*p != 'x') {
- goto error;
- }
- p++;
- if (!isdigit(*p)) {
- goto error;
- }
- height = strtoul(p, &end, 10);
- p = end;
- }
-
- /*
- * Parse the X and Y coordinates, if they are present.
- */
-
- if (*p != '\0') {
- flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
- if (*p == '-') {
- flags |= WM_NEGATIVE_X;
- } else if (*p != '+') {
- goto error;
- }
- x = strtol(p+1, &end, 10);
- p = end;
- if (*p == '-') {
- flags |= WM_NEGATIVE_Y;
- } else if (*p != '+') {
- goto error;
- }
- y = strtol(p+1, &end, 10);
- if (*end != '\0') {
- goto error;
- }
-
- /*
- * Assume that the geometry information came from the user,
- * unless an explicit source has been specified. Otherwise
- * most window managers assume that the size hints were
- * program-specified and they ignore them.
- */
-
- if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
- wmPtr->sizeHintsFlags |= USPosition;
- flags |= WM_UPDATE_SIZE_HINTS;
- }
- }
-
- /*
- * Everything was parsed OK. Update the fields of *wmPtr and
- * arrange for the appropriate information to be percolated out
- * to the window manager at the next idle moment.
- */
-
- wmPtr->width = width;
- wmPtr->height = height;
- if ((x != wmPtr->x) || (y != wmPtr->y)
- || ((flags & (WM_NEGATIVE_X|WM_NEGATIVE_Y))
- != (wmPtr->flags & (WM_NEGATIVE_X|WM_NEGATIVE_Y)))) {
- wmPtr->x = x;
- wmPtr->y = y;
- flags |= WM_MOVE_PENDING;
- }
- wmPtr->flags = flags;
-
- if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
- Tk_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
- wmPtr->flags |= WM_UPDATE_PENDING;
- }
- return TCL_OK;
-
- error:
- Tcl_AppendResult(interp, "bad geometry specifier \"",
- string, "\"", (char *) NULL);
- return TCL_ERROR;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GetRootCoords --
- *
- * Given a token for a window, this procedure traces through the
- * window's lineage to find the (virtual) root-window coordinates
- * corresponding to point (0,0) in the window.
- *
- * Results:
- * The locations pointed to by xPtr and yPtr are filled in with
- * the root coordinates of the (0,0) point in tkwin. If a virtual
- * root window is in effect for the window, then the coordinates
- * in the virtual root are returned.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tk_GetRootCoords(tkwin, xPtr, yPtr)
- Tk_Window tkwin; /* Token for window. */
- int *xPtr; /* Where to store x-displacement of (0,0). */
- int *yPtr; /* Where to store y-displacement of (0,0). */
- {
- int x, y;
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- /*
- * Search back through this window's parents all the way to a
- * top-level window, combining the offsets of each window within
- * its parent.
- */
-
- x = y = 0;
- while (1) {
- x += winPtr->changes.x + winPtr->changes.border_width;
- y += winPtr->changes.y + winPtr->changes.border_width;
- if (winPtr->flags & TK_TOP_LEVEL) {
- break;
- }
- winPtr = winPtr->parentPtr;
- }
- *xPtr = x;
- *yPtr = y;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_CoordsToWindow --
- *
- * Given the (virtual) root coordinates of a point, this procedure
- * returns the token for the top-most window covering that point,
- * if there exists such a window in this application.
- *
- * Results:
- * The return result is either a token for the window corresponding
- * to rootX and rootY, or else NULL to indicate that there is no such
- * window.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- Tk_Window
- Tk_CoordsToWindow(rootX, rootY, tkwin)
- int rootX, rootY; /* Coordinates of point in root window. If
- * a virtual-root window manager is in use,
- * these coordinates refer to the virtual
- * root, not the real root. */
- Tk_Window tkwin; /* Token for any window in application;
- * used to identify the display. */
- {
- Window rootChild, dummy3, dummy4, vRoot;
- int i, dummy1, dummy2;
- register WmInfo *wmPtr;
- register TkWindow *winPtr, *childPtr;
- TkWindow *nextPtr; /* Coordinates of highest child found so
- * far that contains point. */
- int x, y; /* Coordinates in winPtr. */
- int tmpx, tmpy, bd;
- Window *children; /* Children of winPtr, or NULL. */
- unsigned int numChildren; /* Size of children array. */
-
- /*
- * Step 1: find any top-level window for the right screen, then
- * use it to find the virtual root.
- */
-
-
- while (!Tk_IsTopLevel(tkwin)) {
- tkwin = Tk_Parent(tkwin);
- }
- vRoot = ((TkWindow *) tkwin)->wmInfoPtr->vRoot;
- if (vRoot == None) {
- vRoot = RootWindowOfScreen(Tk_Screen(tkwin));
- }
-
- /*
- * Step 2: find the top-level window that contains the desired
- * coordinates.
- */
-
- if (XTranslateCoordinates(Tk_Display(tkwin), vRoot, vRoot, rootX,
- rootY, &dummy1, &dummy2, &rootChild) == False) {
- panic("Tk_CoordsToWindow get False return from XTranslateCoordinates");
- }
- for (wmPtr = firstWmPtr; ; wmPtr = wmPtr->nextPtr) {
- if (wmPtr == NULL) {
- return NULL;
- }
- if ((wmPtr->reparent == rootChild) || ((wmPtr->reparent == None)
- && (wmPtr->winPtr->window == rootChild))) {
- break;
- }
- }
- winPtr = wmPtr->winPtr;
- if (winPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr) {
- return NULL;
- }
-
- /*
- * Step 3: work down through the hierarchy underneath this window.
- * At each level, scan through all the children to see if any contain
- * the point. If none do, then we're done. If one does, then do the
- * same thing on that child. If two or more do, then fetch enough
- * information from the window server to figure out which is on top,
- * and repeat on that child.
- */
-
- x = rootX;
- y = rootY;
- while (1) {
- x -= winPtr->changes.x;
- y -= winPtr->changes.y;
- nextPtr = NULL;
- children = NULL;
- for (childPtr = winPtr->childList; childPtr != NULL;
- childPtr = childPtr->nextPtr) {
- if (!Tk_IsMapped(childPtr) || (childPtr->flags & TK_TOP_LEVEL)) {
- continue;
- }
- tmpx = x - childPtr->changes.x;
- tmpy = y - childPtr->changes.y;
- bd = childPtr->changes.border_width;
- if ((tmpx < -bd) || (tmpy < -bd)
- || (tmpx >= (childPtr->changes.width + bd))
- || (tmpy >= (childPtr->changes.height + bd))) {
- continue;
- }
- if (nextPtr == NULL) {
- nextPtr = childPtr;
- continue;
- }
-
- /*
- * More than one child of same parent overlaps point. Must
- * figure out which is on top. Keep a cache of the stacking
- * order for winPtr to help with this, in case there are >2
- * children overlapping.
- */
-
- if (children == NULL) {
- if (XQueryTree(winPtr->display, winPtr->window, &dummy3,
- &dummy4, &children, &numChildren) == 0) {
- panic("Tk_CoordsToWindow get error return from XQueryTree");
- }
- }
- for (i = 0; i < numChildren; i++) {
- if (children[i] == childPtr->window) {
- break;
- }
- if (children[i] == nextPtr->window) {
- nextPtr = childPtr;
- break;
- }
- }
- }
- if (children != NULL) {
- XFree((char *) children);
- }
- if (nextPtr == NULL) {
- break;
- }
- winPtr = nextPtr;
- }
- return (Tk_Window) winPtr;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * UpdateVRootGeometry --
- *
- * This procedure is called to update all the virtual root
- * geometry information in wmPtr.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The vRootX, vRootY, vRootWidth, and vRootHeight fields in
- * wmPtr are filled with the most up-to-date information.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- UpdateVRootGeometry(wmPtr)
- WmInfo *wmPtr; /* Window manager information to be
- * updated. The wmPtr->vRoot field must
- * be valid. */
- {
- TkWindow *winPtr = wmPtr->winPtr;
- unsigned int bd, dummy;
- Window dummy2;
- Status status;
- Tk_ErrorHandler handler;
-
- /*
- * If this isn't a virtual-root window manager, just return information
- * about the screen.
- */
-
- wmPtr->flags &= ~WM_VROOT_OFFSET_STALE;
- if (wmPtr->vRoot == None) {
- noVRoot:
- wmPtr->vRootX = wmPtr->vRootY = 0;
- wmPtr->vRootWidth = DisplayWidth(winPtr->display, winPtr->screenNum);
- wmPtr->vRootHeight = DisplayHeight(winPtr->display, winPtr->screenNum);
- return;
- }
-
- /*
- * Refresh the virtual root information if it's out of date.
- */
-
- handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
- (Tk_ErrorProc *) NULL, (ClientData) NULL);
- status = XGetGeometry(winPtr->display, wmPtr->vRoot,
- &dummy2, &wmPtr->vRootX, &wmPtr->vRootY,
- &wmPtr->vRootWidth, &wmPtr->vRootHeight, &bd, &dummy);
- if (wmTracing) {
- printf("UpdateVRootGeometry: x = %d, y = %d, width = %d, ",
- wmPtr->vRootX, wmPtr->vRootY, wmPtr->vRootWidth);
- printf("height = %d, status = %d\n", wmPtr->vRootHeight, status);
- }
- Tk_DeleteErrorHandler(handler);
- if (status == 0) {
- /*
- * The virtual root is gone! Pretend that it never existed.
- */
-
- wmPtr->vRoot = None;
- goto noVRoot;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GetVRootGeometry --
- *
- * This procedure returns information about the virtual root
- * window corresponding to a particular Tk window.
- *
- * Results:
- * The values at xPtr, yPtr, widthPtr, and heightPtr are set
- * with the offset and dimensions of the root window corresponding
- * to tkwin. If tkwin is being managed by a virtual root window
- * manager these values correspond to the virtual root window being
- * used for tkwin; otherwise the offsets will be 0 and the
- * dimensions will be those of the screen.
- *
- * Side effects:
- * Vroot window information is refreshed if it is out of date.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
- Tk_Window tkwin; /* Window whose virtual root is to be
- * queried. */
- int *xPtr, *yPtr; /* Store x and y offsets of virtual root
- * here. */
- unsigned int *widthPtr, *heightPtr;
- /* Store dimensions of virtual root here. */
- {
- WmInfo *wmPtr;
- TkWindow *winPtr = (TkWindow *) tkwin;
-
- /*
- * Find the top-level window for tkwin, and locate the window manager
- * information for that window.
- */
-
- while (!(winPtr->flags & TK_TOP_LEVEL)) {
- winPtr = winPtr->parentPtr;
- }
- wmPtr = winPtr->wmInfoPtr;
-
- /*
- * Make sure that the geometry information is up-to-date, then copy
- * it out to the caller.
- */
-
- if (wmPtr->flags & WM_VROOT_OFFSET_STALE) {
- UpdateVRootGeometry(wmPtr);
- }
- *xPtr = wmPtr->vRootX;
- *yPtr = wmPtr->vRootY;
- *widthPtr = wmPtr->vRootWidth;
- *heightPtr = wmPtr->vRootHeight;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_MoveToplevelWindow --
- *
- * This procedure is called instead of Tk_MoveWindow to adjust
- * the x-y location of a top-level window. It delays the actual
- * move to a later time and keeps window-manager information
- * up-to-date with the move
- *
- * Results:
- * None.
- *
- * Side effects:
- * The window is eventually moved so that its upper-left corner
- * (actually, the upper-left corner of the window's decorative
- * frame, if there is one) is at (x,y).
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tk_MoveToplevelWindow(tkwin, x, y)
- Tk_Window tkwin; /* Window to move. */
- int x, y; /* New location for window (within
- * parent). */
- {
- TkWindow *winPtr = (TkWindow *) tkwin;
- register WmInfo *wmPtr = winPtr->wmInfoPtr;
-
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- panic("Tk_MoveToplevelWindow called with non-toplevel window");
- }
- wmPtr->x = x;
- wmPtr->y = y;
- wmPtr->flags |= WM_MOVE_PENDING;
- wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
- if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
- wmPtr->sizeHintsFlags |= USPosition;
- wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
- }
-
- /*
- * If the window has already been mapped, must bring its geometry
- * up-to-date immediately, otherwise an event might arrive from the
- * server that would overwrite wmPtr->x and wmPtr->y and lose the
- * new position.
- */
-
- if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
- if (wmPtr->flags & WM_UPDATE_PENDING) {
- Tk_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
- }
- UpdateGeometryInfo((ClientData) winPtr);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * UpdateWmProtocols --
- *
- * This procedure transfers the most up-to-date information about
- * window manager protocols from the WmInfo structure to the actual
- * property on the top-level window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The WM_PROTOCOLS property gets changed for wmPtr's window.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- UpdateWmProtocols(wmPtr)
- register WmInfo *wmPtr; /* Information about top-level window. */
- {
- register ProtocolHandler *protPtr;
- Atom deleteWindowAtom;
- int count;
- Atom *arrayPtr, *atomPtr;
-
- /*
- * There are only two tricky parts here. First, there could be any
- * number of atoms for the window, so count them and malloc an array
- * to hold all of their atoms. Second, we *always* want to respond
- * to the WM_DELETE_WINDOW protocol, even if no-one's officially asked.
- */
-
- for (protPtr = wmPtr->protPtr, count = 1; protPtr != NULL;
- protPtr = protPtr->nextPtr, count++) {
- /* Empty loop body; we're just counting the handlers. */
- }
- arrayPtr = (Atom *) ckalloc((unsigned) (count * sizeof(Atom)));
- deleteWindowAtom = Tk_InternAtom((Tk_Window) wmPtr->winPtr,
- "WM_DELETE_WINDOW");
- arrayPtr[0] = deleteWindowAtom;
- for (protPtr = wmPtr->protPtr, atomPtr = &arrayPtr[1];
- protPtr != NULL; protPtr = protPtr->nextPtr) {
- if (protPtr->protocol != deleteWindowAtom) {
- *atomPtr = protPtr->protocol;
- atomPtr++;
- }
- }
- XChangeProperty(wmPtr->winPtr->display, wmPtr->winPtr->window,
- Tk_InternAtom((Tk_Window) wmPtr->winPtr, "WM_PROTOCOLS"),
- XA_ATOM, 32, PropModeReplace, (unsigned char *) arrayPtr,
- atomPtr-arrayPtr);
- ckfree((char *) arrayPtr);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TkWmProtocolEventProc --
- *
- * This procedure is called by the Tk_HandleEvent whenever a
- * ClientMessage event arrives whose type is "WM_PROTOCOLS".
- * This procedure handles the message from the window manager
- * in an appropriate fashion.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Depends on what sort of handler, if any, was set up for the
- * protocol.
- *
- *----------------------------------------------------------------------
- */
-
- void
- TkWmProtocolEventProc(winPtr, eventPtr)
- TkWindow *winPtr; /* Window to which the event was sent. */
- XEvent *eventPtr; /* X event. */
- {
- WmInfo *wmPtr;
- register ProtocolHandler *protPtr;
- Atom protocol;
- int result;
-
- wmPtr = winPtr->wmInfoPtr;
- if (wmPtr == NULL) {
- return;
- }
- protocol = (Atom) eventPtr->xclient.data.l[0];
- for (protPtr = wmPtr->protPtr; protPtr != NULL;
- protPtr = protPtr->nextPtr) {
- if (protocol == protPtr->protocol) {
- Tk_Preserve((ClientData) protPtr);
- result = Tcl_GlobalEval(protPtr->interp, protPtr->command);
- if (result != TCL_OK) {
- Tcl_AddErrorInfo(protPtr->interp, "\n (command for \"");
- Tcl_AddErrorInfo(protPtr->interp,
- Tk_GetAtomName((Tk_Window) winPtr, protocol));
- Tcl_AddErrorInfo(protPtr->interp,
- "\" window manager protocol)");
- Tk_BackgroundError(protPtr->interp);
- }
- Tk_Release((ClientData) protPtr);
- return;
- }
- }
-
- /*
- * No handler was present for this protocol. If this is a
- * WM_DELETE_WINDOW message then just destroy the window.
- */
-
- if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
- Tk_DestroyWindow((Tk_Window) winPtr);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TkWmRestackToplevel --
- *
- * This procedure restacks a top-level window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * WinPtr gets restacked as specified by aboveBelow and otherPtr.
- * This procedure doesn't return until the restack has taken
- * effect and the ConfigureNotify event for it has been received.
- *
- *----------------------------------------------------------------------
- */
-
- void
- TkWmRestackToplevel(winPtr, aboveBelow, otherPtr)
- TkWindow *winPtr; /* Window to restack. */
- int aboveBelow; /* Gives relative position for restacking;
- * must be Above or Below. */
- TkWindow *otherPtr; /* Window relative to which to restack;
- * if NULL, then winPtr gets restacked
- * above or below *all* siblings. */
- {
- XWindowChanges changes;
- unsigned int mask;
- Window window, dummy1, dummy2, vRoot;
- Window *children;
- unsigned int numChildren;
- int i;
- unsigned long serial;
- XEvent event;
- int diff;
-
- changes.stack_mode = aboveBelow;
- mask = CWStackMode;
- if (winPtr->window == None) {
- Tk_MakeWindowExist((Tk_Window) winPtr);
- }
- window = (winPtr->wmInfoPtr->reparent != NULL)
- ? winPtr->wmInfoPtr->reparent : winPtr->window;
- if (otherPtr != NULL) {
- if (otherPtr->window == None) {
- Tk_MakeWindowExist((Tk_Window) otherPtr);
- }
- changes.sibling = (otherPtr->wmInfoPtr->reparent != NULL)
- ? otherPtr->wmInfoPtr->reparent : otherPtr->window;
- mask = CWStackMode|CWSibling;
- }
-
- /*
- * Before actually reconfiguring the window, see if it's already
- * in the right place. If so then don't reconfigure it. The
- * reason for this extra work is that some window managers will
- * ignore the reconfigure request if the window is already in
- * the right place, causing a long delay in WaitForConfigureNotify
- * while it times out.
- */
-
- vRoot = winPtr->wmInfoPtr->vRoot;
- if (vRoot == None) {
- vRoot = RootWindowOfScreen(Tk_Screen((Tk_Window) winPtr));
- }
- if (XQueryTree(winPtr->display, vRoot, &dummy1, &dummy2,
- &children, &numChildren) != 0) {
- if (mask & CWSibling) {
- if (aboveBelow == Above) {
- for (i = 1; i < numChildren; i++) {
- if ((children[i] == window)
- && (children[i-1] == changes.sibling)) {
- alreadyOK:
- XFree((char *) children);
- return;
- }
- }
- } else {
- for (i = 1; i < numChildren; i++) {
- if ((children[i] == changes.sibling)
- && (children[i-1] == window)) {
- goto alreadyOK;
- }
- }
- }
- } else {
- if (aboveBelow == Above) {
- if (window == children[numChildren-1]) {
- goto alreadyOK;
- }
- } else {
- if (window == children[0]) {
- goto alreadyOK;
- }
- }
- }
- XFree((char *) children);
- }
-
- /*
- * Reconfigure the window and wait for the reconfiguration to be
- * complete. If we don't wait, then the window may not restack
- * for a while and the application might observe it before it has
- * restacked. Waiting for the reconfiguration is tricky if winPtr
- * has been reparented, since the window getting the event isn't
- * one that Tk owns.
- */
-
- serial = NextRequest(winPtr->display);
- XConfigureWindow(winPtr->display, window, mask, &changes);
- if (window == winPtr->window) {
- WaitForConfigureNotify(winPtr, serial);
- } else {
- XSelectInput(winPtr->display, window, StructureNotifyMask);
- while (1) {
- if (WaitForEvent(winPtr->display, window, StructureNotifyMask,
- &event) != TCL_OK) {
- break;
- }
- if ((event.type == ConfigureNotify)
- && (event.xconfigure.window == window)) {
- diff = event.xconfigure.serial - serial;
- if (diff >= 0) {
- break;
- }
- }
- }
- XSelectInput(winPtr->display, window, (long) 0);
- }
- }
-