Micropolis
| Rev. | b4fe1a1aa49efbd41c500b38f522ee3af3171fd6 |
|---|---|
| サイズ | 72,229 バイト |
| 日時 | 2014-12-15 02:24:36 |
| 作者 | Simon Morgan |
| ログメッセージ | first commit
|
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videogamepreservation/micropolis/*
* 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 1991 Regents of the University of California.
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: /user6/ouster/wish/RCS/tkWm.c,v 1.32 92/08/21 16:26:31 ouster Exp $ SPRITE (Berkeley)";
#endif
#include "tkconfig.h"
#include "tkint.h"
#include "tkwm.h"
/*
* The definitions below compensate for the lack of some definitions
* under X11R3.
*/
#ifdef X11R3
#define PBaseSize (1L<<8)
#endif
/*
* 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. */
/*
* 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 prevReqWidth, prevReqHeight;
/* Last known size preferences, as specified
* to Tk_GeometryRequest. Used to tell when
* the preferred dimensions have changed. */
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. If not reparented then these are
* zero. */
unsigned long configRequest;/* Serial number of last request that we
* issued to change geometry of window.
* Used to discard configure events that
* we know will be superceded. */
int configWidth, configHeight;
/* Dimensions passed to last request that we
* issued to change geometry of window. Used
* to eliminate redundant resize operations. */
int flags; /* Miscellaneous flags, defined below. */
char *deleteCmd; /* Command to execute when a WM_DELETE_WINDOW
* ICCCM ClientMessage arrives for this window.
*
* If it is the empty string "" or has never
* been set (is char *)NULL) via the "wm" tcl
* command the window is destroyed.
*
* If it is a non-empty string, the name of
* the window is appended on to the end
* of the string and it is executed
* within the interpreter associated with
* the top level window.
*/
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_NESTED_REPARENT - non-zero means that the window has been
* reparented several levels deep in a hierarchy
* (i.e. reparent isn't the window's immediate
* parent).
* WM_CONFIG_PENDING - non-zero means we've asked for the top-level
* window to be resized but haven't seen a
* ConfigureNotify event to indicate that the
* resize occurred.
* WM_CONFIG_AGAIN - non-zero means we need to reconfigure the
* window again as soon as the current configure
* request has been processed by the window
* manager.
* WM_FULL_SCREEN - non-zero means that the window is in full screen mode.
*/
#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_NESTED_REPARENT 0x20
#define WM_CONFIG_PENDING 0x40
#define WM_CONFIG_AGAIN 0x100
#define WM_FULL_SCREEN 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)
/*
* Forward declarations for procedures defined in this file:
*/
static int ParseGeometry _ANSI_ARGS_ ((Tcl_Interp *interp,
char *string, TkWindow *winPtr));
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));
/*
*--------------------------------------------------------------
*
* 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->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->prevReqWidth = wmPtr->prevReqHeight = -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->configRequest = 0;
wmPtr->configWidth = -1;
wmPtr->configHeight = -1;
wmPtr->flags = WM_NEVER_MAPPED;
wmPtr->deleteCmd = (char *)0;
wmPtr->nextPtr = firstWmPtr;
firstWmPtr = wmPtr;
winPtr->wmInfoPtr = wmPtr;
/*
* Tk must monitor certain events for top-level windows:
* (a) structure events, in order to detect size and position changes
* caused by window managers.
* (b) enter/level events, in order to perform focussing correctly.
*/
Tk_CreateEventHandler((Tk_Window) winPtr,
StructureNotifyMask|EnterWindowMask|LeaveWindowMask,
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 just before a top-level window
* is mapped. It gives this module a chance to update all
* window-manager-related information in properties before
* the window manager sees the map event and checks the
* properties.
*
* Results:
* Returns non-zero if it's OK for the window to be mapped, 0
* if the caller shouldn't map the window after all (e.g. because
* it has been withdrawn).
*
* Side effects:
* Properties of winPtr may get updated to provide up-to-date
* information to the window manager.
*
*--------------------------------------------------------------
*/
int
TkWmMapWindow(winPtr)
TkWindow *winPtr; /* Top-level window that's about to
* be mapped. */
{
register WmInfo *wmPtr = winPtr->wmInfoPtr;
#ifndef X11R3
XTextProperty textProp;
#endif
/*
* Set the MAPPED flag if the window is going to appear in its normal
* state: if it's going to be iconified or withdrawn then it won't
* ever be mapped.
*/
if (wmPtr->hints.initial_state == NormalState) {
winPtr->flags |= TK_MAPPED;
}
if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
return 1;
}
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.
*/
#ifndef X11R3
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);
}
#endif
TkWmSetClass(winPtr);
TkWmSetWmProtocols(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;
UpdateGeometryInfo((ClientData) winPtr);
UpdateHints(winPtr);
if (wmPtr->hints.initial_state == WithdrawnState) {
return 0;
}
return 1;
}
/*
*--------------------------------------------------------------
*
* 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; /* Newly-created top-level window. */
{
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(wmPtr->hints.icon_pixmap);
}
if (wmPtr->hints.flags & IconMaskHint) {
Tk_FreeBitmap(wmPtr->hints.icon_mask);
}
if (wmPtr->flags & WM_UPDATE_PENDING) {
Tk_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
}
if (wmPtr->deleteCmd) {
ckfree(wmPtr->deleteCmd);
}
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;
}
#ifndef X11R3
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);
}
#endif
}
/*
*----------------------------------------------------------------------
*
* 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 < 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " option window ?arg ...?\"", (char *) NULL);
return TCL_ERROR;
}
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;
c = argv[1][0];
length = strlen(argv[1]);
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 == '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;
if (wmPtr->flags & WM_NEVER_MAPPED) {
return TCL_OK;
}
Tk_MapWindow((Tk_Window) winPtr);
} else if ((c == 'f') && (strncmp(argv[1], "focusmodel", length) == 0)) {
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], "fullscreen", length) == 0)) {
if (argc != 4) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " fullscreen window on|off\"",
(char *) NULL);
return TCL_ERROR;
}
c = argv[3][0];
length = strlen(argv[3]);
if (strncmp(argv[3], "on", length) == 0) {
wmPtr->flags &= ~WM_FULL_SCREEN;
} else if (strncmp(argv[3], "off", length) == 0) {
wmPtr->flags |= WM_FULL_SCREEN;
} else {
Tcl_AppendResult(interp, "bad argument \"", argv[3],
"\": must be on or off", (char *) NULL);
return TCL_ERROR;
}
static Atom _NET_WM_STATE;
static Atom _NET_WM_STATE_REMOVE;
static Atom _NET_WM_STATE_ADD;
static Atom _NET_WM_STATE_FULLSCREEN;
if (!_NET_WM_STATE) {
#define MAX_ATOMS 30
Atom *atom_ptr[MAX_ATOMS];
char *names[MAX_ATOMS];
int i = 0;
#define atom(a,b) atom_ptr[i] = &a; names[i] = b; i++
atom(_NET_WM_STATE, "_NET_WM_STATE");
atom(_NET_WM_STATE_REMOVE, "_NET_WM_STATE_REMOVE");
atom(_NET_WM_STATE_ADD, "_NET_WM_STATE_ADD");
atom(_NET_WM_STATE_FULLSCREEN, "_NET_WM_STATE_FULLSCREEN");
#undef atom
Atom atoms[MAX_ATOMS];
XInternAtoms(winPtr->display, names, i, 0, atoms);
for (; i--;) {
*atom_ptr[i] = atoms[i];
}
}
XEvent e;
e.xany.type = ClientMessage;
e.xany.window = winPtr->window;
e.xclient.message_type = _NET_WM_STATE;
e.xclient.format = 32;
e.xclient.data.l[0] =
(wmPtr->flags & WM_FULL_SCREEN)
? _NET_WM_STATE_ADD
: _NET_WM_STATE_REMOVE;
e.xclient.data.l[1] = (long)_NET_WM_STATE_FULLSCREEN;
e.xclient.data.l[2] = (long)0;
e.xclient.data.l[3] = (long)0;
e.xclient.data.l[4] = (long)0;
XSendEvent(winPtr->display, RootWindow(winPtr->display, winPtr->screenNum), 0,
SubstructureNotifyMask|SubstructureRedirectMask, &e);
} 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 (wmPtr->width != -1) {
width = wmPtr->width;
height = wmPtr->height;
} else if (IS_GRIDDED(wmPtr)) {
width = wmPtr->reqGridWidth;
height = wmPtr->reqGridHeight;
} else {
width = winPtr->reqWidth;
height = winPtr->reqHeight;
}
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], " reqsize 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) tkwin, 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(wmPtr->hints.icon_pixmap);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
if (wmPtr->hints.icon_pixmap != None) {
Tk_FreeBitmap(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;
}
wmPtr->hints.initial_state = IconicState;
if (wmPtr->flags & WM_NEVER_MAPPED) {
return TCL_OK;
}
#ifndef X11R3
if (XIconifyWindow(winPtr->display, winPtr->window,
winPtr->screenNum) == 0) {
interp->result =
"couldn't send iconify message to window manager";
return TCL_ERROR;
}
#else
interp->result = "can't iconify under X11R3";
return TCL_ERROR;
#endif
} 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(wmPtr->hints.icon_mask);
}
return TCL_OK;
}
if (*argv[3] == '\0') {
if (wmPtr->hints.icon_mask != None) {
Tk_FreeBitmap(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 == 'p') && (strncmp(argv[1], "positionfrom", length) == 0)) {
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 == 'r') && (strncmp(argv[1], "raise", length) == 0)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " raise window\"", (char *) NULL);
return TCL_ERROR;
}
Tk_MakeWindowExist((Tk_Window) winPtr);
XRaiseWindow(Tk_Display(winPtr), Tk_WindowId(winPtr));
} else if ((c == 's') && (strncmp(argv[1], "sizefrom", length) == 0)) {
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 == '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]);
#ifndef X11R3
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);
}
}
#endif
}
#ifndef X11R3
} else if ((c == 't') && (strncmp(argv[1], "transient", length) == 0)
&& (length >= 2)) {
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;
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;
}
winPtr->flags &= ~TK_MAPPED;
} else if ((c == 'p') && (strncmp(argv[1], "protocol", length) == 0)) {
/*
* handle various ICCCM WM_PROTOCOL attributes
*/
if (argc < 4) {
Tcl_AppendResult(interp, "wrong # arguments: must be \"",
argv[0], " protocol window type..\"", (char *) NULL);
return TCL_ERROR;
}
if (!strcmp(argv[3], "delete")) {
return WmProtocolCmd(interp, &(wmPtr->deleteCmd), argc, argv);
} else {
Tcl_AppendResult(interp, argv[0],
": bad argument ", argv[3], " must be: ",
"delete", (char *) NULL);
return TCL_ERROR;
}
#endif
} else {
Tcl_AppendResult(interp, "unknown or ambiguous option \"", argv[1],
"\": must be aspect, deiconify, focusmodel, ",
"fullscreen, geometry, grid, group, iconbitmap, ",
"iconify, iconmask, iconname, iconposition, ",
"iconwindow, maxsize, minsize, positionfrom, raise, ",
"sizefrom, title, transient, withdraw, or protocol",
(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;
}
}
/*
*----------------------------------------------------------------------
*
* 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;
if (eventPtr->type == DestroyNotify) {
if (!(winPtr->flags & TK_ALREADY_DEAD)) {
Tk_DestroyWindow((Tk_Window) winPtr);
}
} else if (eventPtr->type == ConfigureNotify) {
register WmInfo *wmPtr = winPtr->wmInfoPtr;
int diff, x, y;
/*
* A top-level window has been reconfigured. Problem #1:
* discard stale information. If the application has recently
* tried to reconfigure itself, ignore all events until the
* response to that reconfiguration arrives (the response is
* assumed to be the first ConfigureNotify that arrives after
* the server has seen the request; this suffers from potential
* races with user actions, but it's the best I can think of
* right now).
*/
diff = eventPtr->xconfigure.serial - wmPtr->configRequest;
if (diff < 0) {
return;
}
/*
* Problem #2: reparenting window managers. 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) {
noReparent:
winPtr->changes.x = eventPtr->xconfigure.x;
winPtr->changes.y = eventPtr->xconfigure.y;
wmPtr->parentWidth = eventPtr->xconfigure.width
+ 2*eventPtr->xconfigure.border_width;
wmPtr->parentHeight = eventPtr->xconfigure.height
+ 2*eventPtr->xconfigure.border_width;
} else {
unsigned int width, height, bd, dummy;
Window dummy2;
Status status;
Tk_ErrorHandler handler;
handler = Tk_CreateErrorHandler(winPtr->display, BadDrawable, -1,
-1, (Tk_ErrorProc *) NULL, (ClientData) NULL);
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, then handle it as a non-reparented
* window.
*/
wmPtr->reparent = None;
wmPtr->flags &= ~WM_NESTED_REPARENT;
wmPtr->xInParent = wmPtr->yInParent = 0;
goto noReparent;
}
wmPtr->parentWidth = width + 2*bd;
wmPtr->parentHeight = height + 2*bd;
winPtr->changes.x = x;
winPtr->changes.y = y;
if (wmPtr->flags & WM_NESTED_REPARENT) {
int xOffset, yOffset;
(void) XTranslateCoordinates(winPtr->display, winPtr->window,
wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2);
wmPtr->xInParent = xOffset + bd - winPtr->changes.border_width;
wmPtr->yInParent = yOffset + bd - winPtr->changes.border_width;
} else {
if (!eventPtr->xconfigure.send_event) {
wmPtr->xInParent = eventPtr->xconfigure.x + bd;
wmPtr->yInParent = eventPtr->xconfigure.y + bd;
}
}
winPtr->changes.x = x + wmPtr->xInParent;
winPtr->changes.y = y + wmPtr->yInParent;
}
/*
* Problem #3: if the window size or location was changed
* externally, update the geometry information in wmPtr to make
* it look just as if the user had typed a "wm geometry" command
* to make the change. There are many tricky situations to deal
* with:
* (a) the event is simply a reflection of an internal geometry
* request from the window's widgets (must leave width and
* height alone in this case).
* (b) the window manager might respond to a size request from
* us with a different size than requested (e.g. it might
* have a minimum allowable window size). Because of this,
* can't just compare new size with requested size to determine
* whether this event is a reflection of an internal request
* from within the application. Use WM_CONFIG_PENDING flag
* instead.
* (c) ConfigureNotify events also arise if the window has been
* moved, even if its size hasn't changed. Must distinguish
* between the user moving the window and the user resizing
* the window.
*/
if (wmPtr->flags & WM_CONFIG_PENDING) {
int diff;
/*
* Size change is just a reflection of something coming from
* application.
*/
diff = eventPtr->xconfigure.serial - wmPtr->configRequest;
if (diff >= 0) {
if (wmPtr->flags & WM_CONFIG_AGAIN) {
if (!(wmPtr->flags & WM_UPDATE_PENDING)) {
Tk_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
wmPtr->flags |= WM_UPDATE_PENDING;
}
}
wmPtr->flags &= ~(WM_CONFIG_PENDING|WM_CONFIG_AGAIN);
}
} else if ((winPtr->changes.width != eventPtr->xconfigure.width)
|| (winPtr->changes.height != eventPtr->xconfigure.height)) {
wmPtr->configWidth = -1;
wmPtr->configHeight = -1;
if (IS_GRIDDED(wmPtr)) {
wmPtr->width = wmPtr->reqGridWidth
+ (eventPtr->xconfigure.width
- winPtr->reqWidth)/wmPtr->widthInc;
if (wmPtr->width < 0) {
wmPtr->width = 0;
}
wmPtr->height = wmPtr->reqGridHeight
+ (eventPtr->xconfigure.height
- winPtr->reqHeight)/wmPtr->heightInc;
if (wmPtr->height < 0) {
wmPtr->height = 0;
}
} else if ((eventPtr->xconfigure.width != winPtr->changes.width)
|| (eventPtr->xconfigure.height
!= winPtr->changes.height)) {
/*
* The check above is needed so we don't think the user
* requested a new size when all he/she did was to move
* the window.
*/
wmPtr->width = eventPtr->xconfigure.width;
wmPtr->height = eventPtr->xconfigure.height;
}
}
winPtr->changes.width = eventPtr->xconfigure.width;
winPtr->changes.height = eventPtr->xconfigure.height;
winPtr->changes.border_width = eventPtr->xconfigure.border_width;
winPtr->changes.sibling = eventPtr->xconfigure.above;
winPtr->changes.stack_mode = Above;
x = winPtr->changes.x - wmPtr->xInParent;
if (wmPtr->flags & WM_NEGATIVE_X) {
x = DisplayWidth(winPtr->display, winPtr->screenNum)
- (x + wmPtr->parentWidth);
}
y = winPtr->changes.y - wmPtr->yInParent;
if (wmPtr->flags & WM_NEGATIVE_Y) {
y = DisplayHeight(winPtr->display, winPtr->screenNum)
- (y + wmPtr->parentHeight);
}
if ((x != wmPtr->x) || (y != wmPtr->y)) {
wmPtr->x = x;
wmPtr->y = y;
}
} else if (eventPtr->type == MapNotify) {
winPtr->flags |= TK_MAPPED;
} else if (eventPtr->type == UnmapNotify) {
winPtr->flags &= ~TK_MAPPED;
} else if (eventPtr->type == ReparentNotify) {
WmInfo *wmPtr = winPtr->wmInfoPtr;
Window root, *children, dummy2, *virtualRootPtr;
Atom virtualRootAtom, actualType;
int actualFormat;
unsigned long numItems, bytesAfter;
unsigned int dummy;
/*
* Locate the ancestor of this window that is just below the
* root window for the screen (could be the window itself).
* This code is a bit tricky because it allows for the
* possibility of a virtual root window, which is identified
* with a property named __SWM_VROOT.
*/
virtualRootAtom = Tk_InternAtom((Tk_Window) winPtr, "__SWM_VROOT");
wmPtr->flags &= ~WM_NESTED_REPARENT;
wmPtr->reparent = None;
root = eventPtr->xreparent.parent;
while (root != RootWindow(winPtr->display, winPtr->screenNum)) {
Tk_ErrorHandler handler1, handler2;
int status;
virtualRootPtr = NULL;
handler1 =
Tk_CreateErrorHandler(winPtr->display, BadDrawable,
-1, -1, (Tk_ErrorProc *) NULL,
(ClientData) NULL);
handler2 =
Tk_CreateErrorHandler(winPtr->display, BadWindow,
-1, -1, (Tk_ErrorProc *) NULL,
(ClientData) NULL);
status = XGetWindowProperty(winPtr->display, root,
virtualRootAtom,
0, (long) 1, False, XA_WINDOW,
&actualType, &actualFormat,
&numItems, &bytesAfter,
(unsigned char **) &virtualRootPtr);
Tk_DeleteErrorHandler(handler1);
Tk_DeleteErrorHandler(handler2);
if (status == Success) {
if (virtualRootPtr != NULL) {
if (*virtualRootPtr != root) {
panic("TopLevelEventProc confused over virtual root");
}
XFree((char *) virtualRootPtr);
break;
}
}
wmPtr->reparent = root;
(void) XQueryTree(winPtr->display, root, &dummy2, &root,
&children, &dummy);
XFree((char *) children);
}
/*
* The ancestor just below the (virtual) root is in wmPtr->reparent
* now, and the (virtual) root is in root.
*/
if (eventPtr->xreparent.parent == root) {
wmPtr->reparent = None;
wmPtr->flags &= ~WM_NESTED_REPARENT;
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 = eventPtr->xreparent.x;
winPtr->changes.y = eventPtr->xreparent.y;
} else {
int x, y, xOffset, yOffset;
unsigned int width, height, bd;
if (wmPtr->reparent != eventPtr->xreparent.parent) {
wmPtr->flags |= WM_NESTED_REPARENT;
} else {
wmPtr->flags &= ~WM_NESTED_REPARENT;
}
/*
* Compute and save information about reparent and about
* the window's position in reparent.
*/
(void) XGetGeometry(winPtr->display, wmPtr->reparent,
&dummy2, &x, &y, &width, &height, &bd, &dummy);
wmPtr->parentWidth = width + 2*bd;
wmPtr->parentHeight = height + 2*bd;
(void) XTranslateCoordinates(winPtr->display, winPtr->window,
wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2);
wmPtr->xInParent = xOffset + bd - winPtr->changes.border_width;
wmPtr->yInParent = yOffset + bd - winPtr->changes.border_width;
winPtr->changes.x = x + xOffset;
winPtr->changes.y = y + yOffset;
}
} else if ((eventPtr->type == EnterNotify)
|| (eventPtr->type == LeaveNotify)) {
TkFocusEventProc(winPtr, eventPtr);
}
}
/*
*----------------------------------------------------------------------
*
* 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;
if ((wmPtr->prevReqWidth == winPtr->reqWidth)
&& (wmPtr->prevReqHeight == winPtr->reqHeight)) {
return;
}
wmPtr->prevReqWidth = winPtr->reqWidth;
wmPtr->prevReqHeight = winPtr->reqHeight;
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.
*
* 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;
/*
* It isn't safe to issue a new reconfigure request while there is
* another reconfigure request outstanding. If this happens, skip
* the second reconfigure operation but set a flag so it will get
* done with the first one finishes.
*/
wmPtr->flags &= ~WM_UPDATE_PENDING;
if (wmPtr->flags & WM_CONFIG_PENDING) {
wmPtr->flags |= WM_CONFIG_AGAIN;
return;
}
/*
* 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
* 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 window. 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 = DisplayWidth(winPtr->display, winPtr->screenNum) - wmPtr->x
- (width + (wmPtr->parentWidth - winPtr->changes.width))
+ wmPtr->xInParent;
} else {
x = wmPtr->x + wmPtr->xInParent;
}
if (wmPtr->flags & WM_NEGATIVE_Y) {
y = DisplayHeight(winPtr->display, winPtr->screenNum) - wmPtr->y
- (height + (wmPtr->parentHeight - winPtr->changes.height))
+ wmPtr->yInParent;
} else {
y = wmPtr->y + wmPtr->yInParent;
}
/*
* 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) || (width != winPtr->changes.width))
&& !IS_GRIDDED(wmPtr)
&& ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) {
wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
}
if (wmPtr->flags & WM_UPDATE_SIZE_HINTS) {
UpdateSizeHints(winPtr);
}
/*
* If the geometry hasn't changed, be careful to use only a
* resize operation. This is because of bugs in some window
* managers (e.g. twm, as of 4/24/91) where they don't interpret
* coordinates according to ICCCM.
*/
if ((x != winPtr->changes.x) || (y != winPtr->changes.y)) {
wmPtr->configRequest = XNextRequest(winPtr->display);
wmPtr->configWidth = width;
wmPtr->configHeight = height;
Tk_MoveResizeWindow((Tk_Window) winPtr, x, y, (unsigned) width,
(unsigned) height);
wmPtr->flags |= WM_CONFIG_PENDING;
} else if ((width != wmPtr->configWidth)
|| (height != wmPtr->configHeight)) {
wmPtr->configRequest = XNextRequest(winPtr->display);
wmPtr->configWidth = width;
wmPtr->configHeight = height;
Tk_ResizeWindow((Tk_Window) winPtr, (unsigned) width,
(unsigned) height);
wmPtr->flags |= WM_CONFIG_PENDING;
}
}
/*
*--------------------------------------------------------------
*
* 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;
#ifndef X11R3
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)) {
hintsPtr->max_width = hintsPtr->max_height = 1000000;
hintsPtr->flags |= PMaxSize;
}
XSetWMNormalHints(winPtr->display, winPtr->window, hintsPtr);
XFree((char *) hintsPtr);
#endif /* X11R3 */
}
/*
*--------------------------------------------------------------
*
* 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;
wmPtr->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;
wmPtr->x = x;
wmPtr->y = y;
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 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.
*
* 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;
}
/*
*--------------------------------------------------------------
*
* TkWmSetWmProtocols --
* Set the ICCCM WM_PROTOCOLS to be honored by this window.
* Currently, it is just WM_DELETE_WINDOW.
*
* Results:
* None.
*
* Side effects:
* A window property may get updated.
*
*--------------------------------------------------------------
*/
void
TkWmSetWmProtocols(winPtr)
TkWindow *winPtr; /* Newly-created top-level window. */
{
if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
return;
}
#ifndef X11R3
else {
/* assemble the WM_PROTOCOLS that we honor */
int count = 0;
Atom atomlist[8];
atomlist[count++] = Tk_InternAtom((Tk_Window) winPtr,
"WM_DELETE_WINDOW");
/*
* other WM_PROTOCOLS go here -- e.g...
* atomlist[count++] = Tk_InternAtom((Tk_Window) winPtr,
* "WM_SAVE_YOURSELF");
*/
/*
* assign the honor list to the window not all X11R4's have
* XSetWmProtocols() so use XChangeProperty()
*/
/* XSetWmProtocols(winPtr->display, winPtr->window, atomlist, count); */
XChangeProperty(winPtr->display,
winPtr->window,
Tk_InternAtom((Tk_Window) winPtr, "WM_PROTOCOLS"),
XA_ATOM, 32,
PropModeReplace,
(unsigned char *)atomlist,
count);
}
#endif
return;
}
/*
*----------------------------------------------------------------------
*
* TkWmProtocolEventProc --
*
* Handle a WM_PROTOCOL ICCCM event sent by the window manager to
* top level window.
*
* The WM_PROTOCOL's currently handled are:
*
* WM_DELETE_PROTOCOL:
*
* Results: None
*
* Side effects:
* for WM_DELETE_WINDOW:
* - window may be deleted if specified earlier by a
* wm tcl command
* - a tcl command may be executed if sepcified earlier by a
* wm tcl command
*
*
*/
void
TkWmProtocolEventProc(winPtr, eventPtr)
TkWindow *winPtr;
XEvent *eventPtr;
{
if ((Atom)(eventPtr->xclient.data.l)[0] ==
Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
WmInfo *wmPtr = winPtr->wmInfoPtr;
if (wmPtr->deleteCmd) {
if (*(wmPtr->deleteCmd) == '\0') {
/* callback is empty, just delete the window */
Tk_DestroyWindow((Tk_Window) winPtr);
} else {
/* there is a callback so run it */
(void) Tcl_Eval(winPtr->mainPtr->interp,
wmPtr->deleteCmd, 0, (char **)0);
}
} else {
Tk_DestroyWindow((Tk_Window) winPtr);
}
}
/*
* else { .. other WM_<ETC> cases go here ... }
*/
return;
}
/*
*----------------------------------------------------------------------
*
* WmProtocolCmd
*
* implements
*
* wm protocol <window> delete [command_str]
*
* right now just delete is supported for OPTION
*
* Kind of artificial, But makes it easier to merge into new
* versions of Stock Tk.
*/
int
WmProtocolCmd(interp, CmdPtr, argc, argv)
Tcl_Interp *interp;
char **CmdPtr;
int argc;
char **argv;
{
#define Cmd (*CmdPtr)
switch(argc) {
case 4:
/*
* return current command
*/
if (!Cmd || *Cmd == '\0') {
return TCL_OK;
} else {
/*
* chop off the <blank><window_name>
* and return just the cmd
*/
int x = strlen(Cmd) - strlen(argv[2]) - 1;
char tmpc = Cmd[x];
Cmd[x] = '\0';
{
/* maybe should just have them put the window in the cmd */
Tcl_AppendResult(interp, Cmd, (char *)NULL);
}
/*
* tack the blank and window name back on
*/
Cmd[x] = tmpc;
return TCL_OK;
}
case 5:
/*
* (re)set command
*/
if (Cmd) {
ckfree(Cmd);
Cmd = (char *)NULL;
}
if (*argv[4] != '\0') {
int x = strlen(argv[4]) + strlen(argv[2]) + 2;
if (!(Cmd = ckalloc(x))) {
perror("wm protocol:");
} else {
sprintf(Cmd, "%s %s", argv[4], argv[2]);
}
}
return TCL_OK;
default:
Tcl_AppendResult(interp, "wrong # of arguments: must be \"",
argv[0], " protocol window <attribute> [cmd]\"", (char *) NULL);
return TCL_ERROR;
}
#undef Cmd
}
/*
*----------------------------------------------------------------------
*
* Tk_CoordsToWindow --
*
* Given the 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. */
Tk_Window tkwin; /* Token for any window in application;
* used to identify the application. */
{
Window rootChild, dummy3, dummy4;
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 the top-level window that contains the desired
* coordinates.
*/
if (XTranslateCoordinates(Tk_Display(tkwin),
RootWindowOfScreen(Tk_Screen(tkwin)),
RootWindowOfScreen(Tk_Screen(tkwin)), 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 2: 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;
}