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- /*
- * tkWindow.c --
- *
- * This file provides basic window-manipulation procedures,
- * which are equivalent to procedures in Xlib (and even
- * invoke them) but also maintain the local Tk_Window
- * structure.
- *
- * Copyright 1989-1992 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/tkWindow.c,v 1.92 92/08/21 11:42:44 ouster Exp $ SPRITE (Berkeley)";
- #endif
-
- #include "tkConfig.h"
- #include "tkInt.h"
-
- /*
- * Count of number of main windows currently open in this process.
- */
-
- int tk_NumMainWindows;
-
- /*
- * List of all displays currently in use.
- */
-
- TkDisplay *tkDisplayList = NULL;
-
- /*
- * Have statics in this module been initialized?
- */
-
- static initialized = 0;
-
- /*
- * Context information used to map from X window id's to
- * TkWindow structures (during event handling, for example):
- */
-
- XContext tkWindowContext;
-
- /*
- * The variables below hold several uid's that are used in many places
- * in the toolkit.
- */
-
- Tk_Uid tkDisabledUid = NULL;
- Tk_Uid tkActiveUid = NULL;
- Tk_Uid tkNormalUid = NULL;
-
- /*
- * Default values for "changes" and "atts" fields of TkWindows. Note
- * that Tk always requests all events for all windows, except StructureNotify
- * events on internal windows: these events are generated internally.
- */
-
- static XWindowChanges defChanges = {
- 0, 0, 1, 1, 0, 0, Above
- };
- #define ALL_EVENTS_MASK \
- KeyPressMask|KeyReleaseMask|ButtonPressMask|ButtonReleaseMask| \
- EnterWindowMask|LeaveWindowMask|PointerMotionMask|ExposureMask| \
- VisibilityChangeMask|SubstructureNotifyMask| \
- FocusChangeMask|PropertyChangeMask|ColormapChangeMask
- static XSetWindowAttributes defAtts= {
- None, /* background_pixmap */
- 0, /* background_pixel */
- CopyFromParent, /* border_pixmap */
- 0, /* border_pixel */
- ForgetGravity, /* bit_gravity */
- NorthWestGravity, /* win_gravity */
- NotUseful, /* backing_store */
- ~0, /* backing_planes */
- 0, /* backing_pixel */
- False, /* save_under */
- ALL_EVENTS_MASK, /* event_mask */
- 0, /* do_not_propagate_mask */
- False, /* override_redirect */
- CopyFromParent, /* colormap */
- None /* cursor */
- };
-
- /*
- * The following structure defines all of the commands supported by
- * Tk, and the C procedures that execute them.
- */
-
- typedef struct {
- char *name; /* Name of command. */
- int (*cmdProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp,
- int argc, char **argv));
- /* Command procedure. */
- } TkCmd;
-
- TkCmd commands[] = {
- /*
- * Commands that are part of the intrinsics:
- */
-
- {"after", Tk_AfterCmd},
- {"bind", Tk_BindCmd},
- {"destroy", Tk_DestroyCmd},
- {"focus", Tk_FocusCmd},
- {"grab", Tk_GrabCmd},
- {"option", Tk_OptionCmd},
- {"pack", Tk_PackCmd},
- {"place", Tk_PlaceCmd},
- {"selection", Tk_SelectionCmd},
- {"tkwait", Tk_TkwaitCmd},
- {"update", Tk_UpdateCmd},
- {"winfo", Tk_WinfoCmd},
- {"wm", Tk_WmCmd},
-
- /*
- * Widget-creation commands.
- */
- {"button", Tk_ButtonCmd},
- {"canvas", Tk_CanvasCmd},
- {"checkbutton", Tk_ButtonCmd},
- {"entry", Tk_EntryCmd},
- {"frame", Tk_FrameCmd},
- {"label", Tk_ButtonCmd},
- {"listbox", Tk_ListboxCmd},
- {"menu", Tk_MenuCmd},
- {"menubutton", Tk_MenubuttonCmd},
- {"message", Tk_MessageCmd},
- {"radiobutton", Tk_ButtonCmd},
- {"scale", Tk_ScaleCmd},
- {"scrollbar", Tk_ScrollbarCmd},
- {"text", Tk_TextCmd},
- {"toplevel", Tk_FrameCmd},
- {(char *) NULL, (int (*)()) NULL}
- };
-
- /*
- * Forward declarations to procedures defined later in this file:
- */
-
- static Tk_Window CreateTopLevelWindow _ANSI_ARGS_((Tcl_Interp *interp,
- Tk_Window parent, char *name, char *screenName));
- static void DoConfigureNotify _ANSI_ARGS_((TkWindow *winPtr));
- static TkDisplay * GetScreen _ANSI_ARGS_((Tcl_Interp *interp,
- char *screenName, int *screenPtr));
- static int NameWindow _ANSI_ARGS_((Tcl_Interp *interp,
- TkWindow *winPtr, TkWindow *parentPtr,
- char *name));
- static TkWindow * NewWindow _ANSI_ARGS_((TkDisplay *dispPtr,
- int screenNum));
-
- /*
- *----------------------------------------------------------------------
- *
- * CreateTopLevelWindow --
- *
- * Make a new window that will be at top-level (its parent will
- * be the root window of a screen).
- *
- * Results:
- * The return value is a token for the new window, or NULL if
- * an error prevented the new window from being created. If
- * NULL is returned, an error message will be left in
- * interp->result.
- *
- * Side effects:
- * A new window structure is allocated locally. An X
- * window is NOT initially created, but will be created
- * the first time the window is mapped.
- *
- *----------------------------------------------------------------------
- */
-
- static Tk_Window
- CreateTopLevelWindow(interp, parent, name, screenName)
- Tcl_Interp *interp; /* Interpreter to use for error reporting. */
- Tk_Window parent; /* Token for logical parent of new window
- * (used for naming, options, etc.). May
- * be NULL. */
- char *name; /* Name for new window; if parent is
- * non-NULL, must be unique among parent's
- * children. */
- char *screenName; /* Name of screen on which to create
- * window. NULL means use DISPLAY environment
- * variable to determine. Empty string means
- * use parent's screen, or DISPLAY if no
- * parent. */
- {
- register TkWindow *winPtr;
- register TkDisplay *dispPtr;
- int screenId;
-
- if (!initialized) {
- initialized = 1;
- tkWindowContext = XUniqueContext();
- tkActiveUid = Tk_GetUid("active");
- tkDisabledUid = Tk_GetUid("disabled");
- tkNormalUid = Tk_GetUid("normal");
- }
-
- if ((parent != NULL) && (screenName != NULL) && (screenName[0] == '\0')) {
- dispPtr = ((TkWindow *) parent)->dispPtr;
- screenId = Tk_ScreenNumber(parent);
- } else {
- dispPtr = GetScreen(interp, screenName, &screenId);
- if (dispPtr == NULL) {
- return (Tk_Window) NULL;
- }
- }
-
- winPtr = NewWindow(dispPtr, screenId);
-
- /*
- * Internal windows don't normally ask for StructureNotify events,
- * since we can generate them internally. However, for top-level
- * windows we need to as for the events because the window could
- * be manipulated externally.
- */
-
- winPtr->atts.event_mask |= StructureNotifyMask;
-
- /*
- * (Need to set the TK_TOP_LEVEL flag immediately here; otherwise
- * Tk_DestroyWindow will core dump if it is called before the flag
- * has been set.)
- */
-
- winPtr->flags |= TK_TOP_LEVEL;
- if (parent != NULL) {
- if (NameWindow(interp, winPtr, (TkWindow *) parent, name) != TCL_OK) {
- Tk_DestroyWindow((Tk_Window) winPtr);
- return (Tk_Window) NULL;
- }
- }
- TkWmNewWindow(winPtr);
- return (Tk_Window) winPtr;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * GetScreen --
- *
- * Given a string name for a display-plus-screen, find the
- * TkDisplay structure for the display and return the screen
- * number too.
- *
- * Results:
- * The return value is a pointer to information about the display,
- * or NULL if the display couldn't be opened. In this case, an
- * error message is left in interp->result. The location at
- * *screenPtr is overwritten with the screen number parsed from
- * screenName.
- *
- * Side effects:
- * A new connection is opened to the display if there is no
- * connection already. A new TkDisplay data structure is also
- * setup, if necessary.
- *
- *----------------------------------------------------------------------
- */
-
- static TkDisplay *
- GetScreen(interp, screenName, screenPtr)
- Tcl_Interp *interp; /* Place to leave error message. */
- char *screenName; /* Name for screen. NULL or empty means
- * use DISPLAY envariable. */
- int *screenPtr; /* Where to store screen number. */
- {
- register TkDisplay *dispPtr;
- char *p;
- int length, screenId;
-
- /*
- * Separate the screen number from the rest of the display
- * name. ScreenName is assumed to have the syntax
- * <display>.<screen> with the dot and the screen being
- * optional.
- */
-
- if ((screenName == NULL) || (screenName[0] == '\0')) {
- screenName = getenv("DISPLAY");
- if (screenName == NULL) {
- interp->result =
- "no display name and no $DISPLAY environment variable";
- return (TkDisplay *) NULL;
- }
- }
- length = strlen(screenName);
- screenId = 0;
- p = screenName+length-1;
- while (isdigit(*p) && (p != screenName)) {
- p--;
- }
- if ((*p == '.') && (p[1] != '\0')) {
- length = p - screenName;
- screenId = strtoul(p+1, (char **) NULL, 10);
- }
-
- /*
- * See if we already have a connection to this display. If not,
- * then open a new connection.
- */
-
- for (dispPtr = tkDisplayList; ; dispPtr = dispPtr->nextPtr) {
- if (dispPtr == NULL) {
- Display *display;
-
- display = XOpenDisplay(screenName);
- if (display == NULL) {
- Tcl_AppendResult(interp, "couldn't connect to display \"",
- screenName, "\"", (char *) NULL);
- return (TkDisplay *) NULL;
- }
- dispPtr = (TkDisplay *) ckalloc(sizeof(TkDisplay));
- dispPtr->display = display;
- dispPtr->nextPtr = tkDisplayList;
- dispPtr->name = (char *) ckalloc((unsigned) (length+1));
- dispPtr->lastEventTime = CurrentTime;
- strncpy(dispPtr->name, screenName, length);
- dispPtr->mouseMainPtr = NULL;
- dispPtr->name[length] = '\0';
- dispPtr->symsPerCode = 0;
- dispPtr->errorPtr = NULL;
- dispPtr->deleteCount = 0;
- dispPtr->commWindow = NULL;
- dispPtr->selectionOwner = NULL;
- dispPtr->selectionSerial = 0;
- dispPtr->multipleAtom = None;
- dispPtr->atomInit = 0;
- dispPtr->cursorFont = None;
- dispPtr->grabWinPtr = NULL;
- dispPtr->ungrabWinPtr = NULL;
- dispPtr->buttonWinPtr = NULL;
- dispPtr->pointerWinPtr = NULL;
- dispPtr->serverWinPtr = NULL;
- dispPtr->grabFlags = 0;
- tkDisplayList = dispPtr;
- Tk_CreateFileHandler(ConnectionNumber(display),
- TK_READABLE, (void (*)()) NULL,
- (ClientData) display);
- break;
- }
- if ((strncmp(dispPtr->name, screenName, length) == 0)
- && (dispPtr->name[length] == '\0')) {
- break;
- }
- }
- if (screenId >= ScreenCount(dispPtr->display)) {
- sprintf(interp->result, "bad screen number \"%d\"", screenId);
- return (TkDisplay *) NULL;
- }
- *screenPtr = screenId;
- return dispPtr;
- }
-
- /*
- *--------------------------------------------------------------
- *
- * NewWindow --
- *
- * This procedure creates and initializes a TkWindow structure.
- *
- * Results:
- * The return value is a pointer to the new window.
- *
- * Side effects:
- * A new window structure is allocated and all its fields are
- * initialized.
- *
- *--------------------------------------------------------------
- */
-
- static TkWindow *
- NewWindow(dispPtr, screenNum)
- TkDisplay *dispPtr; /* Display associated with new window. */
- int screenNum; /* Index of screen for new window. */
- {
- register TkWindow *winPtr;
-
- winPtr = (TkWindow *) ckalloc(sizeof(TkWindow));
- winPtr->display = dispPtr->display;
- winPtr->dispPtr = dispPtr;
- winPtr->screenNum = screenNum;
- winPtr->window = None;
- winPtr->childList = NULL;
- winPtr->parentPtr = NULL;
- winPtr->nextPtr = NULL;
- winPtr->mainPtr = NULL;
- winPtr->pathName = NULL;
- winPtr->nameUid = NULL;
- winPtr->classUid = NULL;
- winPtr->changes = defChanges;
- winPtr->dirtyChanges = CWX|CWY|CWWidth|CWHeight|CWBorderWidth;
- winPtr->atts = defAtts;
- winPtr->dirtyAtts = CWEventMask;
- winPtr->flags = 0;
- winPtr->handlerList = NULL;
- winPtr->focusProc = NULL;
- winPtr->focusData = NULL;
- winPtr->optionLevel = -1;
- winPtr->selHandlerList = NULL;
- winPtr->selClearProc = NULL;
- winPtr->selClearData = NULL;
- winPtr->geomProc = NULL;
- winPtr->geomData = NULL;
- winPtr->reqWidth = winPtr->reqHeight = 0;
- winPtr->internalBorderWidth = 0;
- winPtr->wmInfoPtr = NULL;
- return winPtr;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * NameWindow --
- *
- * This procedure is invoked to give a window a name and insert
- * the window into the hierarchy associated with a particular
- * application.
- *
- * Results:
- * A standard Tcl return value.
- *
- * Side effects:
- * See above.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- NameWindow(interp, winPtr, parentPtr, name)
- Tcl_Interp *interp; /* Interpreter to use for error reporting. */
- register TkWindow *winPtr; /* Window that is to be named and inserted. */
- TkWindow *parentPtr; /* Pointer to logical parent for winPtr
- * (used for naming, options, etc.). */
- char *name; /* Name for winPtr; must be unique among
- * parentPtr's children. */
- {
- #define FIXED_SIZE 200
- char staticSpace[FIXED_SIZE];
- char *pathName;
- int new;
- Tcl_HashEntry *hPtr;
- int length1, length2;
-
- /*
- * Setup all the stuff except name right away, then do the name stuff
- * last. This is so that if the name stuff fails, everything else
- * will be properly initialized (needed to destroy the window cleanly
- * after the naming failure).
- */
- winPtr->parentPtr = parentPtr;
- winPtr->nextPtr = parentPtr->childList;
- parentPtr->childList = winPtr;
- winPtr->mainPtr = parentPtr->mainPtr;
- winPtr->nameUid = Tk_GetUid(name);
-
- /*
- * To permit names of arbitrary length, must be prepared to malloc
- * a buffer to hold the new path name. To run fast in the common
- * case where names are short, use a fixed-size buffer on the
- * stack.
- */
-
- length1 = strlen(parentPtr->pathName);
- length2 = strlen(name);
- if ((length1+length2+2) <= FIXED_SIZE) {
- pathName = staticSpace;
- } else {
- pathName = (char *) ckalloc((unsigned) (length1+length2+2));
- }
- if (length1 == 1) {
- pathName[0] = '.';
- strcpy(pathName+1, name);
- } else {
- strcpy(pathName, parentPtr->pathName);
- pathName[length1] = '.';
- strcpy(pathName+length1+1, name);
- }
- hPtr = Tcl_CreateHashEntry(&parentPtr->mainPtr->nameTable, pathName, &new);
- if (pathName != staticSpace) {
- ckfree(pathName);
- }
- if (!new) {
- Tcl_AppendResult(interp, "window name \"", name,
- "\" already exists in parent", (char *) NULL);
- return TCL_ERROR;
- }
- Tcl_SetHashValue(hPtr, winPtr);
- winPtr->pathName = Tcl_GetHashKey(&parentPtr->mainPtr->nameTable, hPtr);
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_CreateMainWindow --
- *
- * Make a new main window. A main window is a special kind of
- * top-level window used as the outermost window in an
- * application.
- *
- * Results:
- * The return value is a token for the new window, or NULL if
- * an error prevented the new window from being created. If
- * NULL is returned, an error message will be left in
- * interp->result.
- *
- * Side effects:
- * A new window structure is allocated locally; "interp" is
- * associated with the window and registered for "send" commands
- * under "baseName". BaseName may be extended with an instance
- * number in the form "#2" if necessary to make it globally
- * unique. Tk-related commands are bound into interp. An X
- * window is NOT initially created, but will be created the
- * first time the window is mapped.
- *
- *----------------------------------------------------------------------
- */
-
- Tk_Window
- Tk_CreateMainWindow(interp, screenName, baseName)
- Tcl_Interp *interp; /* Interpreter to use for error reporting. */
- char *screenName; /* Name of screen on which to create
- * window. Empty or NULL string means
- * use DISPLAY environment variable. */
- char *baseName; /* Base name for application; usually of the
- * form "prog instance". */
- {
- Tk_Window tkwin;
- int result, dummy;
- Tcl_HashEntry *hPtr;
- register TkMainInfo *mainPtr;
- register TkWindow *winPtr;
- register TkCmd *cmdPtr;
-
- /*
- * Create the basic TkWindow structure.
- */
-
- tkwin = CreateTopLevelWindow(interp, (Tk_Window) NULL, baseName,
- screenName);
- if (tkwin == NULL) {
- return NULL;
- }
-
- /*
- * Create the TkMainInfo structure for this application, and set
- * up name-related information for the new window.
- */
-
- winPtr = (TkWindow *) tkwin;
- mainPtr = (TkMainInfo *) ckalloc(sizeof(TkMainInfo));
- mainPtr->winPtr = winPtr;
- mainPtr->interp = interp;
- Tcl_InitHashTable(&mainPtr->nameTable, TCL_STRING_KEYS);
- mainPtr->bindingTable = Tk_CreateBindingTable(interp);
- mainPtr->focusPtr = NULL;
- mainPtr->optionRootPtr = NULL;
- winPtr->mainPtr = mainPtr;
- hPtr = Tcl_CreateHashEntry(&mainPtr->nameTable, ".", &dummy);
- Tcl_SetHashValue(hPtr, winPtr);
- winPtr->pathName = Tcl_GetHashKey(&mainPtr->nameTable, hPtr);
-
- /*
- * Register the interpreter for "send" purposes. If baseName isn't
- * already unique, find a unique suffix to add to it to make it
- * unique. Change the window's name to contain the suffix.
- */
-
- result = Tk_RegisterInterp(interp, baseName, tkwin);
- if (result == TCL_OK) {
- winPtr->nameUid = Tk_GetUid(baseName);
- } else {
- char newName[110];
- int i;
-
- for (i = 2; ; i++) {
- sprintf(newName, "%.100s #%d", baseName, i);
- Tcl_SetResult(interp, (char *) NULL, TCL_STATIC);
- result = Tk_RegisterInterp(interp, newName, tkwin);
- if (result == TCL_OK) {
- break;
- }
- if (i >= 100) {
- Tcl_SetResult(interp,
- "couldn't generate unique name to register application",
- TCL_STATIC);
- Tk_DestroyWindow(tkwin);
- }
- }
- winPtr->nameUid = Tk_GetUid(newName);
- }
-
- /*
- * Bind in Tk's commands.
- */
-
- for (cmdPtr = commands; cmdPtr->name != NULL; cmdPtr++) {
- Tcl_CreateCommand(interp, cmdPtr->name, cmdPtr->cmdProc,
- (ClientData) tkwin, (void (*)()) NULL);
- }
-
- /*
- * Set variables for the intepreter.
- */
-
- Tcl_SetVar(interp, "tk_library", TK_LIBRARY, TCL_GLOBAL_ONLY);
- Tcl_SetVar(interp, "tk_version", TK_VERSION, TCL_GLOBAL_ONLY);
- Tcl_SetVar(interp, "tkVersion", TK_VERSION, TCL_GLOBAL_ONLY);
-
- tk_NumMainWindows++;
- return tkwin;
- }
-
- /*
- *--------------------------------------------------------------
- *
- * Tk_CreateWindow --
- *
- * Create a new internal or top-level window as a child of an
- * existing window.
- *
- * Results:
- * The return value is a token for the new window. This
- * is not the same as X's token for the window. If an error
- * occurred in creating the window (e.g. no such display or
- * screen), then an error message is left in interp->result and
- * NULL is returned.
- *
- * Side effects:
- * A new window structure is allocated locally. An X
- * window is not initially created, but will be created
- * the first time the window is mapped.
- *
- *--------------------------------------------------------------
- */
-
- Tk_Window
- Tk_CreateWindow(interp, parent, name, screenName)
- Tcl_Interp *interp; /* Interpreter to use for error reporting.
- * Interp->result is assumed to be
- * initialized by the caller. */
- Tk_Window parent; /* Token for parent of new window. */
- char *name; /* Name for new window. Must be unique
- * among parent's children. */
- char *screenName; /* If NULL, new window will be internal on
- * same screen as its parent. If non-NULL,
- * gives name of screen on which to create
- * new window; window will be a top-level
- * window. */
- {
- TkWindow *parentPtr = (TkWindow *) parent;
- TkWindow *winPtr;
-
- if (screenName == NULL) {
- winPtr = NewWindow(parentPtr->dispPtr, parentPtr->screenNum);
- if (NameWindow(interp, winPtr, parentPtr, name) != TCL_OK) {
- Tk_DestroyWindow((Tk_Window) winPtr);
- return NULL;
- } else {
- return (Tk_Window) winPtr;
- }
- } else {
- return CreateTopLevelWindow(interp, parent, name, screenName);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_CreateWindowFromPath --
- *
- * This procedure is similar to Tk_CreateInternalWindow except
- * that it uses a path name to create the window, rather than
- * a parent and a child name.
- *
- * Results:
- * The return value is a token for the new window. This
- * is not the same as X's token for the window. If an error
- * occurred in creating the window (e.g. no such display or
- * screen), then an error message is left in interp->result and
- * NULL is returned.
- *
- * Side effects:
- * A new window structure is allocated locally. An X
- * window is not initially created, but will be created
- * the first time the window is mapped.
- *
- *----------------------------------------------------------------------
- */
-
- Tk_Window
- Tk_CreateWindowFromPath(interp, tkwin, pathName, screenName)
- Tcl_Interp *interp; /* Interpreter to use for error reporting.
- * Interp->result is assumed to be
- * initialized by the caller. */
- Tk_Window tkwin; /* Token for any window in application
- * that is to contain new window. */
- char *pathName; /* Path name for new window within the
- * application of tkwin. The parent of
- * this window must already exist, but
- * the window itself must not exist. */
- char *screenName; /* If NULL, new window will be on same
- * screen as its parent. If non-NULL,
- * gives name of screen on which to create
- * new window; window will be a top-level
- * window. */
- {
- #define FIXED_SPACE 5
- char fixedSpace[FIXED_SPACE+1];
- char *p;
- Tk_Window parent;
- int numChars;
-
- /*
- * Strip the parent's name out of pathName (it's everything up
- * to the last dot). There are two tricky parts: (a) must
- * copy the parent's name somewhere else to avoid modifying
- * the pathName string (for large names, space for the copy
- * will have to be malloc'ed); (b) must special-case the
- * situation where the parent is ".".
- */
-
- p = strrchr(pathName, '.');
- if (p == NULL) {
- Tcl_AppendResult(interp, "bad window path name \"", pathName,
- "\"", (char *) NULL);
- return NULL;
- }
- numChars = p-pathName;
- if (numChars > FIXED_SPACE) {
- p = (char *) ckalloc((unsigned) (numChars+1));
- } else {
- p = fixedSpace;
- }
- if (numChars == 0) {
- *p = '.';
- p[1] = '\0';
- } else {
- strncpy(p, pathName, numChars);
- p[numChars] = '\0';
- }
-
- /*
- * Find the parent window.
- */
-
- parent = Tk_NameToWindow(interp, p, tkwin);
- if (p != fixedSpace) {
- ckfree(p);
- }
- if (parent == NULL) {
- return NULL;
- }
-
- /*
- * Create the window.
- */
-
- if (screenName == NULL) {
- TkWindow *parentPtr = (TkWindow *) parent;
- TkWindow *winPtr;
-
- winPtr = NewWindow(parentPtr->dispPtr, parentPtr->screenNum);
- if (NameWindow(interp, winPtr, parentPtr, pathName+numChars+1)
- != TCL_OK) {
- Tk_DestroyWindow((Tk_Window) winPtr);
- return NULL;
- } else {
- return (Tk_Window) winPtr;
- }
- } else {
- return CreateTopLevelWindow(interp, parent, pathName+numChars+1,
- screenName);
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * Tk_DestroyWindow --
- *
- * Destroy an existing window. After this call, the caller
- * should never again use the token.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The window is deleted, along with all of its children.
- * Relevant callback procedures are invoked.
- *
- *--------------------------------------------------------------
- */
-
- void
- Tk_DestroyWindow(tkwin)
- Tk_Window tkwin; /* Window to destroy. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
- XEvent event;
-
- /*
- * Recursively destroy children. The TK_RECURSIVE_DESTROY
- * flags means that the child's window needn't be explicitly
- * destroyed (the destroy of the parent already did it), nor
- * does it need to be removed from its parent's child list,
- * since the parent is being destroyed too.
- */
-
- while (winPtr->childList != NULL) {
- winPtr->childList->flags |= TK_RECURSIVE_DESTROY;
- Tk_DestroyWindow((Tk_Window) winPtr->childList);
- }
-
- /*
- * Generate a DestroyNotify event. In order for the DestroyNotify
- * event to be processed correctly, need to make sure the window
- * exists. This is a bit of a kludge, and may be unnecessarily
- * expensive, but without it no event handlers will get called for
- * windows that don't exist yet.
- */
-
- if (winPtr->window == None) {
- Tk_MakeWindowExist(tkwin);
- }
- winPtr->flags |= TK_ALREADY_DEAD;
- event.type = DestroyNotify;
- event.xdestroywindow.serial =
- LastKnownRequestProcessed(winPtr->display);
- event.xdestroywindow.send_event = False;
- event.xdestroywindow.display = winPtr->display;
- event.xdestroywindow.event = winPtr->window;
- event.xdestroywindow.window = winPtr->window;
- Tk_HandleEvent(&event);
-
- /*
- * Cleanup the data structures associated with this window.
- * No need to destroy windows during recursive destroys, since
- * that will happen automatically when the parent window is
- * destroyed (not true for top-level windows: must destroy
- * them explicitly).
- */
-
- if (winPtr->window != None) {
- if (!(winPtr->flags & TK_RECURSIVE_DESTROY)
- || (winPtr->flags & TK_TOP_LEVEL)) {
- XDestroyWindow(winPtr->display, winPtr->window);
- }
- XDeleteContext(winPtr->display, winPtr->window, tkWindowContext);
- winPtr->window = None;
- }
- if (winPtr->parentPtr != NULL) {
- if (winPtr->parentPtr->childList == winPtr) {
- winPtr->parentPtr->childList = winPtr->nextPtr;
- } else {
- register TkWindow *winPtr2;
-
- for (winPtr2 = winPtr->parentPtr->childList; ;
- winPtr2 = winPtr2->nextPtr) {
- if (winPtr2 == NULL) {
- panic("Tk_DestroyWindow couldn't find child in parent (deleted twice?)");
- break;
- }
- if (winPtr2->nextPtr == winPtr) {
- winPtr2->nextPtr = winPtr->nextPtr;
- break;
- }
- }
- }
- }
- TkEventDeadWindow(winPtr);
- TkOptionDeadWindow(winPtr);
- TkSelDeadWindow(winPtr);
- if (winPtr->flags & TK_TOP_LEVEL) {
- TkWmDeadWindow(winPtr);
- }
- TkGrabDeadWindow(winPtr);
- if (winPtr->mainPtr != NULL) {
- Tk_DeleteAllBindings(winPtr->mainPtr->bindingTable,
- (ClientData) winPtr->pathName);
- if (winPtr->pathName != NULL) {
- Tcl_DeleteHashEntry(Tcl_FindHashEntry(&winPtr->mainPtr->nameTable,
- winPtr->pathName));
- }
- if (winPtr->mainPtr->winPtr == winPtr) {
- register TkCmd *cmdPtr;
-
- /*
- * Deleting a main window. Delete the TkMainInfo structure too
- * and replace all of Tk's commands with dummy commands that
- * return errors. Also delete the "send" command to unregister
- * the interpreter.
- */
-
- for (cmdPtr = commands; cmdPtr->name != NULL; cmdPtr++) {
- Tcl_CreateCommand(winPtr->mainPtr->interp, cmdPtr->name,
- TkDeadAppCmd, (ClientData) NULL, (void (*)()) NULL);
- }
- Tcl_CreateCommand(winPtr->mainPtr->interp, "send",
- TkDeadAppCmd, (ClientData) NULL, (void (*)()) NULL);
- Tcl_DeleteHashTable(&winPtr->mainPtr->nameTable);
- Tk_DeleteBindingTable(winPtr->mainPtr->bindingTable);
- ckfree((char *) winPtr->mainPtr);
- tk_NumMainWindows--;
- }
- }
- ckfree((char *) winPtr);
- }
-
- /*
- *--------------------------------------------------------------
- *
- * Tk_MapWindow --
- *
- * Map a window within its parent. This may require the
- * window and/or its parents to actually be created.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The given window will be mapped. Windows may also
- * be created.
- *
- *--------------------------------------------------------------
- */
-
- void
- Tk_MapWindow(tkwin)
- Tk_Window tkwin; /* Token for window to map. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if (winPtr->flags & TK_MAPPED) {
- return;
- }
- if (winPtr->window == None) {
- Tk_MakeWindowExist(tkwin);
- }
- if (winPtr->flags & TK_TOP_LEVEL) {
- if (!TkWmMapWindow(winPtr)) {
- return;
- }
- } else {
- /*
- * Don't set the mapped flag for top-level windows: TkWmMapWindow
- * does it if appropriate (e.g. if the window is going to be non-
- * iconic).
- */
-
- winPtr->flags |= TK_MAPPED;
- }
- XMapWindow(winPtr->display, winPtr->window);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- XEvent event;
-
- event.type = MapNotify;
- event.xmap.serial = LastKnownRequestProcessed(winPtr->display);
- event.xmap.send_event = False;
- event.xmap.display = winPtr->display;
- event.xmap.event = winPtr->window;
- event.xmap.window = winPtr->window;
- event.xmap.override_redirect = winPtr->atts.override_redirect;
- Tk_HandleEvent(&event);
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * Tk_MakeWindowExist --
- *
- * Ensure that a particular window actually exists. This
- * procedure shouldn't normally need to be invoked from
- * outside the Tk package, but may be needed if someone
- * wants to manipulate a window before mapping it.
- *
- * Results:
- * None.
- *
- * Side effects:
- * When the procedure returns, the X window associated with
- * tkwin is guaranteed to exist. This may require the
- * window's ancestors to be created also.
- *
- *--------------------------------------------------------------
- */
-
- void
- Tk_MakeWindowExist(tkwin)
- Tk_Window tkwin; /* Token for window. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
- Window parent;
-
- if (winPtr->window != None) {
- return;
- }
-
- if (winPtr->flags & TK_TOP_LEVEL) {
- parent = XRootWindow(winPtr->display, winPtr->screenNum);
- } else {
- if (winPtr->parentPtr->window == None) {
- Tk_MakeWindowExist((Tk_Window) winPtr->parentPtr);
- }
- parent = winPtr->parentPtr->window;
- }
- winPtr->window = XCreateWindow(winPtr->display, parent,
- winPtr->changes.x, winPtr->changes.y,
- winPtr->changes.width, winPtr->changes.height,
- winPtr->changes.border_width, CopyFromParent,
- InputOutput, CopyFromParent, winPtr->dirtyAtts,
- &winPtr->atts);
- XSaveContext(winPtr->display, winPtr->window, tkWindowContext,
- (caddr_t) winPtr);
- winPtr->dirtyAtts = 0;
- winPtr->dirtyChanges &= ~(CWX|CWY|CWWidth|CWHeight|CWBorderWidth);
- if (winPtr->dirtyChanges != 0) {
- XConfigureWindow(winPtr->display, winPtr->window,
- winPtr->dirtyChanges, &winPtr->changes);
- winPtr->dirtyChanges = 0;
- }
-
- /*
- * Issue a ConfigureNotify event if there were deferred configuration
- * changes.
- */
-
- if (winPtr->flags & TK_NEED_CONFIG_NOTIFY) {
- winPtr->flags &= ~TK_NEED_CONFIG_NOTIFY;
- DoConfigureNotify(winPtr);
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * Tk_UnmapWindow, etc. --
- *
- * There are several procedures under here, each of which
- * mirrors an existing X procedure. In addition to performing
- * the functions of the corresponding procedure, each
- * procedure also updates the local window structure and
- * synthesizes an X event (if the window's structure is being
- * managed internally).
- *
- * Results:
- * See the manual entries.
- *
- * Side effects:
- * See the manual entries.
- *
- *--------------------------------------------------------------
- */
-
- void
- Tk_UnmapWindow(tkwin)
- Tk_Window tkwin; /* Token for window to unmap. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if (!(winPtr->flags & TK_MAPPED)) {
- return;
- }
- winPtr->flags &= ~TK_MAPPED;
- XUnmapWindow(winPtr->display, winPtr->window);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- XEvent event;
-
- event.type = UnmapNotify;
- event.xunmap.serial = LastKnownRequestProcessed(winPtr->display);
- event.xunmap.send_event = False;
- event.xunmap.display = winPtr->display;
- event.xunmap.event = winPtr->window;
- event.xunmap.window = winPtr->window;
- event.xunmap.from_configure = False;
- Tk_HandleEvent(&event);
- }
- }
-
- void
- Tk_ConfigureWindow(tkwin, valueMask, valuePtr)
- Tk_Window tkwin; /* Window to re-configure. */
- unsigned int valueMask; /* Mask indicating which parts of
- * *valuePtr are to be used. */
- XWindowChanges *valuePtr; /* New values. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if ((winPtr->window == None) || !(winPtr->flags & TK_TOP_LEVEL)) {
- if (valueMask & CWX) {
- winPtr->changes.x = valuePtr->x;
- }
- if (valueMask & CWY) {
- winPtr->changes.y = valuePtr->y;
- }
- if (valueMask & CWWidth) {
- winPtr->changes.width = valuePtr->width;
- }
- if (valueMask & CWHeight) {
- winPtr->changes.height = valuePtr->height;
- }
- if (valueMask & CWBorderWidth) {
- winPtr->changes.border_width = valuePtr->border_width;
- }
- if (valueMask & CWSibling) {
- winPtr->changes.sibling = valuePtr->sibling;
- }
- if (valueMask & CWStackMode) {
- winPtr->changes.stack_mode = valuePtr->stack_mode;
- }
- }
-
- if (winPtr->window != None) {
- XConfigureWindow(winPtr->display, winPtr->window,
- valueMask, valuePtr);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- DoConfigureNotify(winPtr);
- }
- } else {
- winPtr->dirtyChanges |= valueMask;
- winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
- }
- }
-
- void
- Tk_MoveWindow(tkwin, x, y)
- Tk_Window tkwin; /* Window to move. */
- int x, y; /* New location for window (within
- * parent). */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if (winPtr->window != None) {
- XMoveWindow(winPtr->display, winPtr->window, x, y);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- winPtr->changes.x = x;
- winPtr->changes.y = y;
- DoConfigureNotify(winPtr);
- }
- } else {
- winPtr->changes.x = x;
- winPtr->changes.y = y;
- winPtr->dirtyChanges |= CWX|CWY;
- winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
- }
- }
-
- void
- Tk_ResizeWindow(tkwin, width, height)
- Tk_Window tkwin; /* Window to resize. */
- unsigned int width, height; /* New dimensions for window. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if (winPtr->window != None) {
- XResizeWindow(winPtr->display, winPtr->window, width, height);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- winPtr->changes.width = width;
- winPtr->changes.height = height;
- DoConfigureNotify(winPtr);
- }
- } else {
- winPtr->changes.width = width;
- winPtr->changes.height = height;
- winPtr->dirtyChanges |= CWWidth|CWHeight;
- winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
- }
- }
-
- void
- Tk_MoveResizeWindow(tkwin, x, y, width, height)
- Tk_Window tkwin; /* Window to move and resize. */
- int x, y; /* New location for window (within
- * parent). */
- unsigned int width, height; /* New dimensions for window. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if (winPtr->window != None) {
- XMoveResizeWindow(winPtr->display, winPtr->window,
- x, y, width, height);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- winPtr->changes.x = x;
- winPtr->changes.y = y;
- winPtr->changes.width = width;
- winPtr->changes.height = height;
- DoConfigureNotify(winPtr);
- }
- } else {
- winPtr->changes.x = x;
- winPtr->changes.y = y;
- winPtr->changes.width = width;
- winPtr->changes.height = height;
- winPtr->dirtyChanges |= CWX|CWY|CWWidth|CWHeight;
- winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
- }
- }
-
- void
- Tk_SetWindowBorderWidth(tkwin, width)
- Tk_Window tkwin; /* Window to modify. */
- int width; /* New border width for window. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->changes.border_width = width;
- if (winPtr->window != None) {
- XSetWindowBorderWidth(winPtr->display, winPtr->window, width);
- if (!(winPtr->flags & TK_TOP_LEVEL)) {
- DoConfigureNotify(winPtr);
- }
- } else {
- winPtr->dirtyChanges |= CWBorderWidth;
- winPtr->flags |= TK_NEED_CONFIG_NOTIFY;
- }
- }
-
- void
- Tk_ChangeWindowAttributes(tkwin, valueMask, attsPtr)
- Tk_Window tkwin; /* Window to manipulate. */
- unsigned long valueMask; /* OR'ed combination of bits,
- * indicating which fields of
- * *attsPtr are to be used. */
- register XSetWindowAttributes *attsPtr;
- /* New values for some attributes. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- if (valueMask & CWBackPixmap) {
- winPtr->atts.background_pixmap = attsPtr->background_pixmap;
- }
- if (valueMask & CWBackPixel) {
- winPtr->atts.background_pixel = attsPtr->background_pixel;
- }
- if (valueMask & CWBorderPixmap) {
- winPtr->atts.border_pixmap = attsPtr->border_pixmap;
- }
- if (valueMask & CWBorderPixel) {
- winPtr->atts.border_pixel = attsPtr->border_pixel;
- }
- if (valueMask & CWBitGravity) {
- winPtr->atts.bit_gravity = attsPtr->bit_gravity;
- }
- if (valueMask & CWWinGravity) {
- winPtr->atts.win_gravity = attsPtr->win_gravity;
- }
- if (valueMask & CWBackingStore) {
- winPtr->atts.backing_store = attsPtr->backing_store;
- }
- if (valueMask & CWBackingPlanes) {
- winPtr->atts.backing_planes = attsPtr->backing_planes;
- }
- if (valueMask & CWBackingPixel) {
- winPtr->atts.backing_pixel = attsPtr->backing_pixel;
- }
- if (valueMask & CWOverrideRedirect) {
- winPtr->atts.override_redirect = attsPtr->override_redirect;
- }
- if (valueMask & CWSaveUnder) {
- winPtr->atts.save_under = attsPtr->save_under;
- }
- if (valueMask & CWEventMask) {
- winPtr->atts.event_mask = attsPtr->event_mask;
- }
- if (valueMask & CWDontPropagate) {
- winPtr->atts.do_not_propagate_mask
- = attsPtr->do_not_propagate_mask;
- }
- if (valueMask & CWColormap) {
- winPtr->atts.colormap = attsPtr->colormap;
- }
- if (valueMask & CWCursor) {
- winPtr->atts.cursor = attsPtr->cursor;
- }
-
- if (winPtr->window != None) {
- XChangeWindowAttributes(winPtr->display, winPtr->window,
- valueMask, attsPtr);
- } else {
- winPtr->dirtyAtts |= valueMask;
- }
- }
-
- void
- Tk_SetWindowBackground(tkwin, pixel)
- Tk_Window tkwin; /* Window to manipulate. */
- unsigned long pixel; /* Pixel value to use for
- * window's background. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->atts.background_pixel = pixel;
-
- if (winPtr->window != None) {
- XSetWindowBackground(winPtr->display, winPtr->window, pixel);
- } else {
- winPtr->dirtyAtts = (winPtr->dirtyAtts & ~CWBackPixmap)
- | CWBackPixel;
- }
- }
-
- void
- Tk_SetWindowBackgroundPixmap(tkwin, pixmap)
- Tk_Window tkwin; /* Window to manipulate. */
- Pixmap pixmap; /* Pixmap to use for window's
- * background. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->atts.background_pixmap = pixmap;
-
- if (winPtr->window != None) {
- XSetWindowBackgroundPixmap(winPtr->display,
- winPtr->window, pixmap);
- } else {
- winPtr->dirtyAtts = (winPtr->dirtyAtts & ~CWBackPixel)
- | CWBackPixmap;
- }
- }
-
- void
- Tk_SetWindowBorder(tkwin, pixel)
- Tk_Window tkwin; /* Window to manipulate. */
- unsigned long pixel; /* Pixel value to use for
- * window's border. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->atts.border_pixel = pixel;
-
- if (winPtr->window != None) {
- XSetWindowBorder(winPtr->display, winPtr->window, pixel);
- } else {
- winPtr->dirtyAtts = (winPtr->dirtyAtts & ~CWBorderPixmap)
- | CWBorderPixel;
- }
- }
-
- void
- Tk_SetWindowBorderPixmap(tkwin, pixmap)
- Tk_Window tkwin; /* Window to manipulate. */
- Pixmap pixmap; /* Pixmap to use for window's
- * border. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->atts.border_pixmap = pixmap;
-
- if (winPtr->window != None) {
- XSetWindowBorderPixmap(winPtr->display,
- winPtr->window, pixmap);
- } else {
- winPtr->dirtyAtts = (winPtr->dirtyAtts & ~CWBorderPixel)
- | CWBorderPixmap;
- }
- }
-
- void
- Tk_DefineCursor(tkwin, cursor)
- Tk_Window tkwin; /* Window to manipulate. */
- Cursor cursor; /* Cursor to use for window (may be None). */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->atts.cursor = cursor;
-
- if (winPtr->window != None) {
- XDefineCursor(winPtr->display, winPtr->window, cursor);
- } else {
- winPtr->dirtyAtts = winPtr->dirtyAtts | CWCursor;
- }
- }
-
- void
- Tk_UndefineCursor(tkwin)
- Tk_Window tkwin; /* Window to manipulate. */
- {
- Tk_DefineCursor(tkwin, None);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * DoConfigureNotify --
- *
- * Generate a ConfigureNotify event describing the current
- * configuration of a window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * An event is generated and processed by Tk_HandleEvent.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- DoConfigureNotify(winPtr)
- register TkWindow *winPtr; /* Window whose configuration
- * was just changed. */
- {
- XEvent event;
-
- event.type = ConfigureNotify;
- event.xconfigure.serial = LastKnownRequestProcessed(winPtr->display);
- event.xconfigure.send_event = False;
- event.xconfigure.display = winPtr->display;
- event.xconfigure.event = winPtr->window;
- event.xconfigure.window = winPtr->window;
- event.xconfigure.x = winPtr->changes.x;
- event.xconfigure.y = winPtr->changes.y;
- event.xconfigure.width = winPtr->changes.width;
- event.xconfigure.height = winPtr->changes.height;
- event.xconfigure.border_width = winPtr->changes.border_width;
- if (winPtr->changes.stack_mode == Above) {
- event.xconfigure.above = winPtr->changes.sibling;
- } else {
- event.xconfigure.above = None;
- }
- event.xconfigure.override_redirect = winPtr->atts.override_redirect;
- Tk_HandleEvent(&event);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_SetClass --
- *
- * This procedure is used to give a window a class.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A new class is stored for tkwin, replacing any existing
- * class for it.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tk_SetClass(tkwin, className)
- Tk_Window tkwin; /* Token for window to assign class. */
- char *className; /* New class for tkwin. */
- {
- register TkWindow *winPtr = (TkWindow *) tkwin;
-
- winPtr->classUid = Tk_GetUid(className);
- if (winPtr->flags & TK_TOP_LEVEL) {
- TkWmSetClass(winPtr);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_NameToWindow --
- *
- * Given a string name for a window, this procedure
- * returns the token for the window, if there exists a
- * window corresponding to the given name.
- *
- * Results:
- * The return result is either a token for the window corresponding
- * to "name", or else NULL to indicate that there is no such
- * window. In this case, an error message is left in interp->result.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- Tk_Window
- Tk_NameToWindow(interp, pathName, tkwin)
- Tcl_Interp *interp; /* Where to report errors. */
- char *pathName; /* Path name of window. */
- Tk_Window tkwin; /* Token for window: name is assumed to
- * belong to the same main window as tkwin. */
- {
- Tcl_HashEntry *hPtr;
-
- hPtr = Tcl_FindHashEntry(&((TkWindow *) tkwin)->mainPtr->nameTable,
- pathName);
- if (hPtr == NULL) {
- Tcl_AppendResult(interp, "bad window path name \"",
- pathName, "\"", (char *) NULL);
- return NULL;
- }
- return (Tk_Window) Tcl_GetHashValue(hPtr);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tk_DisplayName --
- *
- * Return the textual name of a window's display.
- *
- * Results:
- * The return value is the string name of the display associated
- * with tkwin.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- char *
- Tk_DisplayName(tkwin)
- Tk_Window tkwin; /* Window whose display name is desired. */
- {
- return ((TkWindow *) tkwin)->dispPtr->name;
- }
-