/* * tkButton.c -- * * This module implements a collection of button-like * widgets for the Tk toolkit. The widgets implemented * include labels, buttons, check buttons, and radio * buttons. * * Copyright (c) 1990-1994 The Regents of the University of California. * Copyright (c) 1994-1995 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * SCCS: @(#) tkButton.c 1.144 97/07/31 09:04:57 */ #include "tkButton.h" #include "default.h" /* * Class names for buttons, indexed by one of the type values above. */ static char *classNames[] = {"Label", "Button", "Checkbutton", "Radiobutton"}; /* * The class procedure table for the button widget. */ static int configFlags[] = {LABEL_MASK, BUTTON_MASK, CHECK_BUTTON_MASK, RADIO_BUTTON_MASK}; /* * Information used for parsing configuration specs: */ Tk_ConfigSpec tkpButtonConfigSpecs[] = { {TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground", DEF_BUTTON_ACTIVE_BG_COLOR, Tk_Offset(TkButton, activeBorder), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK |TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground", DEF_BUTTON_ACTIVE_BG_MONO, Tk_Offset(TkButton, activeBorder), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK |TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background", DEF_BUTTON_ACTIVE_FG_COLOR, Tk_Offset(TkButton, activeFg), BUTTON_MASK|TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background", DEF_CHKRAD_ACTIVE_FG_COLOR, Tk_Offset(TkButton, activeFg), CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background", DEF_BUTTON_ACTIVE_FG_MONO, Tk_Offset(TkButton, activeFg), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK |TK_CONFIG_MONO_ONLY}, {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor", DEF_BUTTON_ANCHOR, Tk_Offset(TkButton, anchor), ALL_MASK}, {TK_CONFIG_BORDER, "-background", "background", "Background", DEF_BUTTON_BG_COLOR, Tk_Offset(TkButton, normalBorder), ALL_MASK | TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_BORDER, "-background", "background", "Background", DEF_BUTTON_BG_MONO, Tk_Offset(TkButton, normalBorder), ALL_MASK | TK_CONFIG_MONO_ONLY}, {TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL, (char *) NULL, 0, ALL_MASK}, {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL, (char *) NULL, 0, ALL_MASK}, {TK_CONFIG_BITMAP, "-bitmap", "bitmap", "Bitmap", DEF_BUTTON_BITMAP, Tk_Offset(TkButton, bitmap), ALL_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth", DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidth), ALL_MASK}, #ifdef STk_CODE {TK_CONFIG_CLOSURE, "-command", "command", "Command", #else {TK_CONFIG_STRING, "-command", "command", "Command", #endif DEF_BUTTON_COMMAND, Tk_Offset(TkButton, command), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor", DEF_BUTTON_CURSOR, Tk_Offset(TkButton, cursor), ALL_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_UID, "-default", "default", "Default", DEF_BUTTON_DEFAULT, Tk_Offset(TkButton, defaultState), BUTTON_MASK}, {TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground", "DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR, Tk_Offset(TkButton, disabledFg), BUTTON_MASK|CHECK_BUTTON_MASK |RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK}, {TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground", "DisabledForeground", DEF_BUTTON_DISABLED_FG_MONO, Tk_Offset(TkButton, disabledFg), BUTTON_MASK|CHECK_BUTTON_MASK |RADIO_BUTTON_MASK|TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK}, #ifdef STk_CODE {TK_CONFIG_ENV, "-environment", "environment", "Environment", DEF_BUTTON_ENV, Tk_Offset(TkButton, env), ALL_MASK}, #endif {TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL, (char *) NULL, 0, ALL_MASK}, {TK_CONFIG_FONT, "-font", "font", "Font", DEF_BUTTON_FONT, Tk_Offset(TkButton, tkfont), ALL_MASK}, {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground", DEF_BUTTON_FG, Tk_Offset(TkButton, normalFg), LABEL_MASK|BUTTON_MASK}, {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground", DEF_CHKRAD_FG, Tk_Offset(TkButton, normalFg), CHECK_BUTTON_MASK |RADIO_BUTTON_MASK}, #ifdef STk_CODE {TK_CONFIG_SINT, "-height", "height", "Height", #else {TK_CONFIG_STRING, "-height", "height", "Height", #endif DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightString), ALL_MASK}, {TK_CONFIG_BORDER, "-highlightbackground", "highlightBackground", "HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG, Tk_Offset(TkButton, highlightBorder), ALL_MASK}, {TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor", DEF_BUTTON_HIGHLIGHT, Tk_Offset(TkButton, highlightColorPtr), ALL_MASK}, {TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness", "HighlightThickness", DEF_LABEL_HIGHLIGHT_WIDTH, Tk_Offset(TkButton, highlightWidth), LABEL_MASK}, {TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness", "HighlightThickness", DEF_BUTTON_HIGHLIGHT_WIDTH, Tk_Offset(TkButton, highlightWidth), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, #ifdef STk_CODE {TK_CONFIG_IMAGE, "-image", "image", "Image", #else {TK_CONFIG_STRING, "-image", "image", "Image", #endif DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imageString), ALL_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn", DEF_BUTTON_INDICATOR, Tk_Offset(TkButton, indicatorOn), CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, {TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify", DEF_BUTTON_JUSTIFY, Tk_Offset(TkButton, justify), ALL_MASK}, #ifdef STk_CODE {TK_CONFIG_BSTRING, "-offvalue", "offValue", "Value", #else {TK_CONFIG_STRING, "-offvalue", "offValue", "Value", #endif DEF_BUTTON_OFF_VALUE, Tk_Offset(TkButton, offValue), CHECK_BUTTON_MASK}, #ifdef STk_CODE {TK_CONFIG_BSTRING, "-onvalue", "onValue", "Value", #else {TK_CONFIG_STRING, "-onvalue", "onValue", "Value", #endif DEF_BUTTON_ON_VALUE, Tk_Offset(TkButton, onValue), CHECK_BUTTON_MASK}, {TK_CONFIG_PIXELS, "-padx", "padX", "Pad", DEF_BUTTON_PADX, Tk_Offset(TkButton, padX), BUTTON_MASK}, {TK_CONFIG_PIXELS, "-padx", "padX", "Pad", DEF_LABCHKRAD_PADX, Tk_Offset(TkButton, padX), LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, {TK_CONFIG_PIXELS, "-pady", "padY", "Pad", DEF_BUTTON_PADY, Tk_Offset(TkButton, padY), BUTTON_MASK}, {TK_CONFIG_PIXELS, "-pady", "padY", "Pad", DEF_LABCHKRAD_PADY, Tk_Offset(TkButton, padY), LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, {TK_CONFIG_RELIEF, "-relief", "relief", "Relief", DEF_BUTTON_RELIEF, Tk_Offset(TkButton, relief), BUTTON_MASK}, {TK_CONFIG_RELIEF, "-relief", "relief", "Relief", DEF_LABCHKRAD_RELIEF, Tk_Offset(TkButton, relief), LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, {TK_CONFIG_BORDER, "-selectcolor", "selectColor", "Background", DEF_BUTTON_SELECT_COLOR, Tk_Offset(TkButton, selectBorder), CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY |TK_CONFIG_NULL_OK}, {TK_CONFIG_BORDER, "-selectcolor", "selectColor", "Background", DEF_BUTTON_SELECT_MONO, Tk_Offset(TkButton, selectBorder), CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_MONO_ONLY |TK_CONFIG_NULL_OK}, {TK_CONFIG_STRING, "-selectimage", "selectImage", "SelectImage", DEF_BUTTON_SELECT_IMAGE, Tk_Offset(TkButton, selectImageString), CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_UID, "-state", "state", "State", DEF_BUTTON_STATE, Tk_Offset(TkButton, state), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, #ifdef STk_CODE {TK_CONFIG_BOOLEAN, "-stringvalue", "stringvalue", "StringValue", "#f", Tk_Offset(TkButton, string), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK}, #endif #ifdef STk_CODE {TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus", #else {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus", #endif DEF_LABEL_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus), LABEL_MASK|TK_CONFIG_NULL_OK}, #ifdef STk_CODE {TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus", #else {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus", #endif DEF_BUTTON_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus), BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_STRING, "-text", "text", "Text", DEF_BUTTON_TEXT, Tk_Offset(TkButton, text), ALL_MASK}, {TK_CONFIG_STRING, "-textvariable", "textVariable", "Variable", DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarName), ALL_MASK|TK_CONFIG_NULL_OK}, {TK_CONFIG_INT, "-underline", "underline", "Underline", DEF_BUTTON_UNDERLINE, Tk_Offset(TkButton, underline), ALL_MASK}, #ifdef STk_CODE {TK_CONFIG_BSTRING, "-value", "value", "Value", #else {TK_CONFIG_STRING, "-value", "value", "Value", #endif DEF_BUTTON_VALUE, Tk_Offset(TkButton, onValue), RADIO_BUTTON_MASK}, {TK_CONFIG_STRING, "-variable", "variable", "Variable", DEF_RADIOBUTTON_VARIABLE, Tk_Offset(TkButton, selVarName), RADIO_BUTTON_MASK}, {TK_CONFIG_STRING, "-variable", "variable", "Variable", DEF_CHECKBUTTON_VARIABLE, Tk_Offset(TkButton, selVarName), CHECK_BUTTON_MASK|TK_CONFIG_NULL_OK}, #ifdef STk_CODE {TK_CONFIG_SINT, "-width", "width", "Width", #else {TK_CONFIG_STRING, "-width", "width", "Width", #endif DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthString), ALL_MASK}, {TK_CONFIG_PIXELS, "-wraplength", "wrapLength", "WrapLength", DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLength), ALL_MASK}, {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, (char *) NULL, 0, 0} }; /* * String to print out in error messages, identifying options for * widget commands for different types of labels or buttons: */ static char *optionStrings[] = { "cget or configure", "cget, configure, flash, or invoke", "cget, configure, deselect, flash, invoke, select, or toggle", "cget, configure, deselect, flash, invoke, or select" }; /* * Forward declarations for procedures defined later in this file: */ static void ButtonCmdDeletedProc _ANSI_ARGS_(( ClientData clientData)); static int ButtonCreate _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, int argc, char **argv, int type)); static void ButtonEventProc _ANSI_ARGS_((ClientData clientData, XEvent *eventPtr)); static void ButtonImageProc _ANSI_ARGS_((ClientData clientData, int x, int y, int width, int height, int imgWidth, int imgHeight)); static void ButtonSelectImageProc _ANSI_ARGS_(( ClientData clientData, int x, int y, int width, int height, int imgWidth, int imgHeight)); static char * ButtonTextVarProc _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, char *name1, char *name2, int flags)); static char * ButtonVarProc _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, char *name1, char *name2, int flags)); static int ButtonWidgetCmd _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, int argc, char **argv)); static int ConfigureButton _ANSI_ARGS_((Tcl_Interp *interp, TkButton *butPtr, int argc, char **argv, int flags)); static void DestroyButton _ANSI_ARGS_((TkButton *butPtr)); /* *-------------------------------------------------------------- * * Tk_ButtonCmd, Tk_CheckbuttonCmd, Tk_LabelCmd, Tk_RadiobuttonCmd -- * * These procedures are invoked to process the "button", "label", * "radiobutton", and "checkbutton" Tcl commands. See the * user documentation for details on what they do. * * Results: * A standard Tcl result. * * Side effects: * See the user documentation. These procedures are just wrappers; * they call ButtonCreate to do all of the real work. * *-------------------------------------------------------------- */ int Tk_ButtonCmd(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. */ { return ButtonCreate(clientData, interp, argc, argv, TYPE_BUTTON); } int Tk_CheckbuttonCmd(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. */ { return ButtonCreate(clientData, interp, argc, argv, TYPE_CHECK_BUTTON); } int Tk_LabelCmd(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. */ { return ButtonCreate(clientData, interp, argc, argv, TYPE_LABEL); } int Tk_RadiobuttonCmd(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. */ { return ButtonCreate(clientData, interp, argc, argv, TYPE_RADIO_BUTTON); } /* *-------------------------------------------------------------- * * ButtonCreate -- * * This procedure does all the real work of implementing the * "button", "label", "radiobutton", and "checkbutton" Tcl * commands. See the user documentation for details on what it does. * * Results: * A standard Tcl result. * * Side effects: * See the user documentation. * *-------------------------------------------------------------- */ static int ButtonCreate(clientData, interp, argc, argv, type) ClientData clientData; /* Main window associated with * interpreter. */ Tcl_Interp *interp; /* Current interpreter. */ int argc; /* Number of arguments. */ char **argv; /* Argument strings. */ int type; /* Type of button to create: TYPE_LABEL, * TYPE_BUTTON, TYPE_CHECK_BUTTON, or * TYPE_RADIO_BUTTON. */ { register TkButton *butPtr; Tk_Window tkwin = (Tk_Window) clientData; Tk_Window new; if (argc < 2) { Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " pathName ?options?\"", (char *) NULL); return TCL_ERROR; } /* * Create the new window. */ new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], (char *) NULL); if (new == NULL) { return TCL_ERROR; } Tk_SetClass(new, classNames[type]); butPtr = TkpCreateButton(new); TkSetClassProcs(new, &tkpButtonProcs, (ClientData) butPtr); /* * Initialize the data structure for the button. */ butPtr->tkwin = new; butPtr->display = Tk_Display(new); butPtr->widgetCmd = Tcl_CreateCommand(interp, Tk_PathName(butPtr->tkwin), ButtonWidgetCmd, (ClientData) butPtr, ButtonCmdDeletedProc); butPtr->interp = interp; butPtr->type = type; butPtr->text = NULL; butPtr->underline = -1; butPtr->textVarName = NULL; butPtr->bitmap = None; butPtr->imageString = NULL; butPtr->image = NULL; butPtr->selectImageString = NULL; butPtr->selectImage = NULL; butPtr->state = tkNormalUid; butPtr->normalBorder = NULL; butPtr->activeBorder = NULL; butPtr->borderWidth = 0; butPtr->relief = TK_RELIEF_FLAT; butPtr->highlightWidth = 0; butPtr->highlightBorder = NULL; butPtr->highlightColorPtr = NULL; butPtr->inset = 0; butPtr->tkfont = NULL; butPtr->normalFg = NULL; butPtr->activeFg = NULL; butPtr->disabledFg = NULL; butPtr->normalTextGC = None; butPtr->activeTextGC = None; butPtr->gray = None; butPtr->disabledGC = None; butPtr->copyGC = None; butPtr->widthString = NULL; butPtr->heightString = NULL; butPtr->width = 0; butPtr->height = 0; butPtr->wrapLength = 0; butPtr->padX = 0; butPtr->padY = 0; butPtr->anchor = TK_ANCHOR_CENTER; butPtr->justify = TK_JUSTIFY_CENTER; butPtr->textLayout = NULL; butPtr->indicatorOn = 0; butPtr->selectBorder = NULL; butPtr->indicatorSpace = 0; butPtr->indicatorDiameter = 0; butPtr->defaultState = tkDisabledUid; butPtr->selVarName = NULL; butPtr->onValue = NULL; butPtr->offValue = NULL; butPtr->cursor = None; butPtr->command = NULL; butPtr->takeFocus = NULL; butPtr->flags = 0; #ifdef STk_CODE butPtr->env = NULL; butPtr->string = 0; #endif Tk_CreateEventHandler(butPtr->tkwin, ExposureMask|StructureNotifyMask|FocusChangeMask, ButtonEventProc, (ClientData) butPtr); if (ConfigureButton(interp, butPtr, argc - 2, argv + 2, configFlags[type]) != TCL_OK) { Tk_DestroyWindow(butPtr->tkwin); return TCL_ERROR; } #ifdef STk_CODE STk_sharp_dot_result(interp, Tk_PathName(butPtr->tkwin)); #else interp->result = Tk_PathName(butPtr->tkwin); #endif return TCL_OK; } /* *-------------------------------------------------------------- * * ButtonWidgetCmd -- * * This procedure is invoked to process the Tcl command * that corresponds to a widget managed by this module. * See the user documentation for details on what it does. * * Results: * A standard Tcl result. * * Side effects: * See the user documentation. * *-------------------------------------------------------------- */ static int ButtonWidgetCmd(clientData, interp, argc, argv) ClientData clientData; /* Information about button widget. */ Tcl_Interp *interp; /* Current interpreter. */ int argc; /* Number of arguments. */ char **argv; /* Argument strings. */ { register TkButton *butPtr = (TkButton *) clientData; int result = TCL_OK; size_t length; int c; #ifdef STk_CODE int flag; #endif if (argc < 2) { sprintf(interp->result, "wrong # args: should be \"%.50s option ?arg arg ...?\"", argv[0]); return TCL_ERROR; } Tcl_Preserve((ClientData) butPtr); c = argv[1][0]; length = strlen(argv[1]); if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0) && (length >= 2)) { if (argc != 3) { Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " cget option\"", (char *) NULL); goto error; } result = Tk_ConfigureValue(interp, butPtr->tkwin, tkpButtonConfigSpecs, (char *) butPtr, argv[2], configFlags[butPtr->type]); } else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0) && (length >= 2)) { if (argc == 2) { result = Tk_ConfigureInfo(interp, butPtr->tkwin, tkpButtonConfigSpecs, (char *) butPtr, (char *) NULL, configFlags[butPtr->type]); } else if (argc == 3) { result = Tk_ConfigureInfo(interp, butPtr->tkwin, tkpButtonConfigSpecs, (char *) butPtr, argv[2], configFlags[butPtr->type]); } else { result = ConfigureButton(interp, butPtr, argc-2, argv+2, configFlags[butPtr->type] | TK_CONFIG_ARGV_ONLY); } } else if ((c == 'd') && (strncmp(argv[1], "deselect", length) == 0) && (butPtr->type >= TYPE_CHECK_BUTTON)) { if (argc > 2) { sprintf(interp->result, "wrong # args: should be \"%.50s deselect\"", argv[0]); goto error; } #ifdef STk_CODE flag = (butPtr->string)? STk_STRINGIFY : 0; #endif if (butPtr->type == TYPE_CHECK_BUTTON) { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue, flag, butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif result = TCL_ERROR; } } else if (butPtr->flags & SELECTED) { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, "#t", flag, butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->selVarName, "", TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif result = TCL_ERROR; }; } } else if ((c == 'f') && (strncmp(argv[1], "flash", length) == 0) && (butPtr->type != TYPE_LABEL)) { int i; if (argc > 2) { sprintf(interp->result, "wrong # args: should be \"%.50s flash\"", argv[0]); goto error; } if (butPtr->state != tkDisabledUid) { for (i = 0; i < 4; i++) { butPtr->state = (butPtr->state == tkNormalUid) ? tkActiveUid : tkNormalUid; Tk_SetBackgroundFromBorder(butPtr->tkwin, (butPtr->state == tkActiveUid) ? butPtr->activeBorder : butPtr->normalBorder); TkpDisplayButton((ClientData) butPtr); /* * Special note: must cancel any existing idle handler * for TkpDisplayButton; it's no longer needed, and TkpDisplayButton * cleared the REDRAW_PENDING flag. */ Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr); XFlush(butPtr->display); Tcl_Sleep(50); } } } else if ((c == 'i') && (strncmp(argv[1], "invoke", length) == 0) && (butPtr->type > TYPE_LABEL)) { if (argc > 2) { sprintf(interp->result, "wrong # args: should be \"%.50s invoke\"", argv[0]); goto error; } if (butPtr->state != tkDisabledUid) { result = TkInvokeButton(butPtr); } } else if ((c == 's') && (strncmp(argv[1], "select", length) == 0) && (butPtr->type >= TYPE_CHECK_BUTTON)) { if (argc > 2) { sprintf(interp->result, "wrong # args: should be \"%.50s select\"", argv[0]); goto error; } #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue, ((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif result = TCL_ERROR; } } else if ((c == 't') && (strncmp(argv[1], "toggle", length) == 0) && (length >= 2) && (butPtr->type == TYPE_CHECK_BUTTON)) { if (argc > 2) { sprintf(interp->result, "wrong # args: should be \"%.50s toggle\"", argv[0]); goto error; } if (butPtr->flags & SELECTED) { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue, ((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif result = TCL_ERROR; } } else { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue, ((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif result = TCL_ERROR; } } } else { sprintf(interp->result, "bad option \"%.50s\": must be %s", argv[1], optionStrings[butPtr->type]); goto error; } Tcl_Release((ClientData) butPtr); return result; error: Tcl_Release((ClientData) butPtr); return TCL_ERROR; } /* *---------------------------------------------------------------------- * * DestroyButton -- * * This procedure is invoked by Tcl_EventuallyFree or Tcl_Release * to clean up the internal structure of a button at a safe time * (when no-one is using it anymore). * * Results: * None. * * Side effects: * Everything associated with the widget is freed up. * *---------------------------------------------------------------------- */ static void DestroyButton(butPtr) TkButton *butPtr; /* Info about button widget. */ { /* * Free up all the stuff that requires special handling, then * let Tk_FreeOptions handle all the standard option-related * stuff. */ if (butPtr->textVarName != NULL) { Tcl_UntraceVar(butPtr->interp, butPtr->textVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonTextVarProc, (ClientData) butPtr); } if (butPtr->image != NULL) { Tk_FreeImage(butPtr->image); } if (butPtr->selectImage != NULL) { Tk_FreeImage(butPtr->selectImage); } if (butPtr->normalTextGC != None) { Tk_FreeGC(butPtr->display, butPtr->normalTextGC); } if (butPtr->activeTextGC != None) { Tk_FreeGC(butPtr->display, butPtr->activeTextGC); } if (butPtr->gray != None) { Tk_FreeBitmap(butPtr->display, butPtr->gray); } if (butPtr->disabledGC != None) { Tk_FreeGC(butPtr->display, butPtr->disabledGC); } if (butPtr->copyGC != None) { Tk_FreeGC(butPtr->display, butPtr->copyGC); } if (butPtr->selVarName != NULL) { Tcl_UntraceVar(butPtr->interp, butPtr->selVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonVarProc, (ClientData) butPtr); } Tk_FreeTextLayout(butPtr->textLayout); Tk_FreeOptions(tkpButtonConfigSpecs, (char *) butPtr, butPtr->display, configFlags[butPtr->type]); Tcl_EventuallyFree((ClientData)butPtr, TCL_DYNAMIC); } /* *---------------------------------------------------------------------- * * ConfigureButton -- * * This procedure is called to process an argv/argc list, plus * the Tk option database, in order to configure (or * reconfigure) a button widget. * * Results: * The return value is a standard Tcl result. If TCL_ERROR is * returned, then interp->result contains an error message. * * Side effects: * Configuration information, such as text string, colors, font, * etc. get set for butPtr; old resources get freed, if there * were any. The button is redisplayed. * *---------------------------------------------------------------------- */ static int ConfigureButton(interp, butPtr, argc, argv, flags) Tcl_Interp *interp; /* Used for error reporting. */ register TkButton *butPtr; /* Information about widget; may or may * not already have values for some fields. */ int argc; /* Number of valid entries in argv. */ char **argv; /* Arguments. */ int flags; /* Flags to pass to Tk_ConfigureWidget. */ { Tk_Image image; /* * Eliminate any existing trace on variables monitored by the button. */ if (butPtr->textVarName != NULL) { Tcl_UntraceVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonTextVarProc, (ClientData) butPtr); } if (butPtr->selVarName != NULL) { Tcl_UntraceVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonVarProc, (ClientData) butPtr); } if (Tk_ConfigureWidget(interp, butPtr->tkwin, tkpButtonConfigSpecs, argc, argv, (char *) butPtr, flags) != TCL_OK) { return TCL_ERROR; } /* * A few options need special processing, such as setting the * background from a 3-D border, or filling in complicated * defaults that couldn't be specified to Tk_ConfigureWidget. */ if ((butPtr->state == tkActiveUid) && !Tk_StrictMotif(butPtr->tkwin)) { Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->activeBorder); } else { Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->normalBorder); if ((butPtr->state != tkNormalUid) && (butPtr->state != tkActiveUid) && (butPtr->state != tkDisabledUid)) { Tcl_AppendResult(interp, "bad state value \"", butPtr->state, "\": must be normal, active, or disabled", (char *) NULL); butPtr->state = tkNormalUid; return TCL_ERROR; } } if ((butPtr->defaultState != tkActiveUid) && (butPtr->defaultState != tkDisabledUid) && (butPtr->defaultState != tkNormalUid)) { Tcl_AppendResult(interp, "bad -default value \"", butPtr->defaultState, "\": must be normal, active, or disabled", (char *) NULL); butPtr->defaultState = tkDisabledUid; return TCL_ERROR; } if (butPtr->highlightWidth < 0) { butPtr->highlightWidth = 0; } if (butPtr->padX < 0) { butPtr->padX = 0; } if (butPtr->padY < 0) { butPtr->padY = 0; } if (butPtr->type >= TYPE_CHECK_BUTTON) { char *value; if (butPtr->selVarName == NULL) { butPtr->selVarName = (char *) ckalloc((unsigned) (strlen(Tk_Name(butPtr->tkwin)) + 1)); strcpy(butPtr->selVarName, Tk_Name(butPtr->tkwin)); } /* * Select the button if the associated variable has the * appropriate value, initialize the variable if it doesn't * exist, then set a trace on the variable to monitor future * changes to its value. */ #ifdef STk_CODE value = STk_tcl_getvar(butPtr->selVarName, butPtr->env); #else value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY); #endif butPtr->flags &= ~SELECTED; if (value != NULL) { if (strcmp(value, butPtr->onValue) == 0) { butPtr->flags |= SELECTED; } } else { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, (butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "#f", ((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->selVarName, (butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "", TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif return TCL_ERROR; } } Tcl_TraceVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonVarProc, (ClientData) butPtr); } /* * Get the images for the widget, if there are any. Allocate the * new images before freeing the old ones, so that the reference * counts don't go to zero and cause image data to be discarded. */ if (butPtr->imageString != NULL) { image = Tk_GetImage(butPtr->interp, butPtr->tkwin, butPtr->imageString, ButtonImageProc, (ClientData) butPtr); if (image == NULL) { return TCL_ERROR; } } else { image = NULL; } if (butPtr->image != NULL) { Tk_FreeImage(butPtr->image); } butPtr->image = image; if (butPtr->selectImageString != NULL) { image = Tk_GetImage(butPtr->interp, butPtr->tkwin, butPtr->selectImageString, ButtonSelectImageProc, (ClientData) butPtr); if (image == NULL) { return TCL_ERROR; } } else { image = NULL; } if (butPtr->selectImage != NULL) { Tk_FreeImage(butPtr->selectImage); } butPtr->selectImage = image; if ((butPtr->image == NULL) && (butPtr->bitmap == None) && (butPtr->textVarName != NULL)) { /* * The button must display the value of a variable: set up a trace * on the variable's value, create the variable if it doesn't * exist, and fetch its current value. */ char *value; #ifdef STk_CODE value = STk_tcl_getvar(butPtr->textVarName, butPtr->env); #else value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY); #endif if (value == NULL) { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->textVarName, butPtr->text, ((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) { #else if (Tcl_SetVar(interp, butPtr->textVarName, butPtr->text, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif return TCL_ERROR; } } else { if (butPtr->text != NULL) { ckfree(butPtr->text); } butPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1)); strcpy(butPtr->text, value); } Tcl_TraceVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonTextVarProc, (ClientData) butPtr); } if ((butPtr->bitmap != None) || (butPtr->image != NULL)) { if (Tk_GetPixels(interp, butPtr->tkwin, butPtr->widthString, &butPtr->width) != TCL_OK) { widthError: Tcl_AddErrorInfo(interp, "\n (processing -width option)"); return TCL_ERROR; } if (Tk_GetPixels(interp, butPtr->tkwin, butPtr->heightString, &butPtr->height) != TCL_OK) { heightError: Tcl_AddErrorInfo(interp, "\n (processing -height option)"); return TCL_ERROR; } } else { if (Tcl_GetInt(interp, butPtr->widthString, &butPtr->width) != TCL_OK) { goto widthError; } if (Tcl_GetInt(interp, butPtr->heightString, &butPtr->height) != TCL_OK) { goto heightError; } } TkButtonWorldChanged((ClientData) butPtr); return TCL_OK; } /* *--------------------------------------------------------------------------- * * TkButtonWorldChanged -- * * This procedure is called when the world has changed in some * way and the widget needs to recompute all its graphics contexts * and determine its new geometry. * * Results: * None. * * Side effects: * Button will be relayed out and redisplayed. * *--------------------------------------------------------------------------- */ void TkButtonWorldChanged(instanceData) ClientData instanceData; /* Information about widget. */ { XGCValues gcValues; GC newGC; unsigned long mask; TkButton *butPtr; butPtr = (TkButton *) instanceData; /* * Recompute GCs. */ gcValues.font = Tk_FontId(butPtr->tkfont); gcValues.foreground = butPtr->normalFg->pixel; gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel; /* * Note: GraphicsExpose events are disabled in normalTextGC because it's * used to copy stuff from an off-screen pixmap onto the screen (we know * that there's no problem with obscured areas). */ gcValues.graphics_exposures = False; mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues); if (butPtr->normalTextGC != None) { Tk_FreeGC(butPtr->display, butPtr->normalTextGC); } butPtr->normalTextGC = newGC; if (butPtr->activeFg != NULL) { gcValues.font = Tk_FontId(butPtr->tkfont); gcValues.foreground = butPtr->activeFg->pixel; gcValues.background = Tk_3DBorderColor(butPtr->activeBorder)->pixel; mask = GCForeground | GCBackground | GCFont; newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues); if (butPtr->activeTextGC != None) { Tk_FreeGC(butPtr->display, butPtr->activeTextGC); } butPtr->activeTextGC = newGC; } if (butPtr->type != TYPE_LABEL) { gcValues.font = Tk_FontId(butPtr->tkfont); gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel; if ((butPtr->disabledFg != NULL) && (butPtr->imageString == NULL)) { gcValues.foreground = butPtr->disabledFg->pixel; mask = GCForeground | GCBackground | GCFont; } else { gcValues.foreground = gcValues.background; mask = GCForeground; if (butPtr->gray == None) { butPtr->gray = Tk_GetBitmap(NULL, butPtr->tkwin, Tk_GetUid("gray50")); } if (butPtr->gray != None) { gcValues.fill_style = FillStippled; gcValues.stipple = butPtr->gray; mask |= GCFillStyle | GCStipple; } } newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues); if (butPtr->disabledGC != None) { Tk_FreeGC(butPtr->display, butPtr->disabledGC); } butPtr->disabledGC = newGC; } if (butPtr->copyGC == None) { butPtr->copyGC = Tk_GetGC(butPtr->tkwin, 0, &gcValues); } TkpComputeButtonGeometry(butPtr); /* * Lastly, arrange for the button to be redisplayed. */ if (Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } } /* *-------------------------------------------------------------- * * ButtonEventProc -- * * This procedure is invoked by the Tk dispatcher for various * events on buttons. * * Results: * None. * * Side effects: * When the window gets deleted, internal structures get * cleaned up. When it gets exposed, it is redisplayed. * *-------------------------------------------------------------- */ static void ButtonEventProc(clientData, eventPtr) ClientData clientData; /* Information about window. */ XEvent *eventPtr; /* Information about event. */ { TkButton *butPtr = (TkButton *) clientData; if ((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0)) { goto redraw; } else if (eventPtr->type == ConfigureNotify) { /* * Must redraw after size changes, since layout could have changed * and borders will need to be redrawn. */ goto redraw; } else if (eventPtr->type == DestroyNotify) { TkpDestroyButton(butPtr); if (butPtr->tkwin != NULL) { butPtr->tkwin = NULL; Tcl_DeleteCommandFromToken(butPtr->interp, butPtr->widgetCmd); } if (butPtr->flags & REDRAW_PENDING) { Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr); } DestroyButton(butPtr); } else if (eventPtr->type == FocusIn) { if (eventPtr->xfocus.detail != NotifyInferior) { butPtr->flags |= GOT_FOCUS; if (butPtr->highlightWidth > 0) { goto redraw; } } } else if (eventPtr->type == FocusOut) { if (eventPtr->xfocus.detail != NotifyInferior) { butPtr->flags &= ~GOT_FOCUS; if (butPtr->highlightWidth > 0) { goto redraw; } } } return; redraw: if ((butPtr->tkwin != NULL) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } } /* *---------------------------------------------------------------------- * * ButtonCmdDeletedProc -- * * This procedure is invoked when a widget command is deleted. If * the widget isn't already in the process of being destroyed, * this command destroys it. * * Results: * None. * * Side effects: * The widget is destroyed. * *---------------------------------------------------------------------- */ static void ButtonCmdDeletedProc(clientData) ClientData clientData; /* Pointer to widget record for widget. */ { TkButton *butPtr = (TkButton *) clientData; Tk_Window tkwin = butPtr->tkwin; /* * This procedure could be invoked either because the window was * destroyed and the command was then deleted (in which case tkwin * is NULL) or because the command was deleted, and then this procedure * destroys the widget. */ if (tkwin != NULL) { butPtr->tkwin = NULL; Tk_DestroyWindow(tkwin); } } /* *---------------------------------------------------------------------- * * TkInvokeButton -- * * This procedure is called to carry out the actions associated * with a button, such as invoking a Tcl command or setting a * variable. This procedure is invoked, for example, when the * button is invoked via the mouse. * * Results: * A standard Tcl return value. Information is also left in * interp->result. * * Side effects: * Depends on the button and its associated command. * *---------------------------------------------------------------------- */ int TkInvokeButton(butPtr) register TkButton *butPtr; /* Information about button. */ { #ifdef STk_CODE int flag = (butPtr->string? STk_STRINGIFY : 0)|TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG; #endif if (butPtr->type == TYPE_CHECK_BUTTON) { if (butPtr->flags & SELECTED) { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue, flag, butPtr->env) == NULL) { #else if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->offValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif return TCL_ERROR; } } else { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue, flag, butPtr->env) == NULL) { #else if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif return TCL_ERROR; } } } else if (butPtr->type == TYPE_RADIO_BUTTON) { #ifdef STk_CODE if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue, flag, butPtr->env) == NULL) { #else if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { #endif return TCL_ERROR; } } if ((butPtr->type != TYPE_LABEL) && (butPtr->command != NULL)) { return TkCopyAndGlobalEval(butPtr->interp, butPtr->command); } return TCL_OK; } /* *-------------------------------------------------------------- * * ButtonVarProc -- * * This procedure is invoked when someone changes the * state variable associated with a radio button. Depending * on the new value of the button's variable, the button * may be selected or deselected. * * Results: * NULL is always returned. * * Side effects: * The button may become selected or deselected. * *-------------------------------------------------------------- */ /* ARGSUSED */ static char * ButtonVarProc(clientData, interp, name1, name2, flags) ClientData clientData; /* Information about button. */ Tcl_Interp *interp; /* Interpreter containing variable. */ char *name1; /* Name of variable. */ char *name2; /* Second part of variable name. */ int flags; /* Information about what happened. */ { register TkButton *butPtr = (TkButton *) clientData; char *value; /* * If the variable is being unset, then just re-establish the * trace unless the whole interpreter is going away. */ if (flags & TCL_TRACE_UNSETS) { butPtr->flags &= ~SELECTED; if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) { Tcl_TraceVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonVarProc, clientData); } goto redisplay; } /* * Use the value of the variable to update the selected status of * the button. */ #ifdef STk_CODE value = STk_tcl_getvar(butPtr->selVarName, butPtr->env); #else value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY); #endif if (value == NULL) { value = ""; } if (strcmp(value, butPtr->onValue) == 0) { if (butPtr->flags & SELECTED) { return (char *) NULL; } butPtr->flags |= SELECTED; } else if (butPtr->flags & SELECTED) { butPtr->flags &= ~SELECTED; } else { return (char *) NULL; } redisplay: if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } return (char *) NULL; } /* *-------------------------------------------------------------- * * ButtonTextVarProc -- * * This procedure is invoked when someone changes the variable * whose contents are to be displayed in a button. * * Results: * NULL is always returned. * * Side effects: * The text displayed in the button will change to match the * variable. * *-------------------------------------------------------------- */ /* ARGSUSED */ static char * ButtonTextVarProc(clientData, interp, name1, name2, flags) ClientData clientData; /* Information about button. */ Tcl_Interp *interp; /* Interpreter containing variable. */ char *name1; /* Not used. */ char *name2; /* Not used. */ int flags; /* Information about what happened. */ { register TkButton *butPtr = (TkButton *) clientData; char *value; /* * If the variable is unset, then immediately recreate it unless * the whole interpreter is going away. */ if (flags & TCL_TRACE_UNSETS) { if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) { #ifdef STk_CODE STk_tcl_setvar(butPtr->textVarName, butPtr->text, (butPtr->string? STk_STRINGIFY: 0), butPtr->env); #else Tcl_SetVar(interp, butPtr->textVarName, butPtr->text, TCL_GLOBAL_ONLY); #endif Tcl_TraceVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, ButtonTextVarProc, clientData); } return (char *) NULL; } #ifdef STk_CODE value = STk_tcl_getvar(butPtr->textVarName, butPtr->env); #else value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY); #endif if (value == NULL) { value = ""; } if (butPtr->text != NULL) { ckfree(butPtr->text); } butPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1)); strcpy(butPtr->text, value); TkpComputeButtonGeometry(butPtr); if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } return (char *) NULL; } /* *---------------------------------------------------------------------- * * ButtonImageProc -- * * This procedure is invoked by the image code whenever the manager * for an image does something that affects the size of contents * of an image displayed in a button. * * Results: * None. * * Side effects: * Arranges for the button to get redisplayed. * *---------------------------------------------------------------------- */ static void ButtonImageProc(clientData, x, y, width, height, imgWidth, imgHeight) ClientData clientData; /* Pointer to widget record. */ int x, y; /* Upper left pixel (within image) * that must be redisplayed. */ int width, height; /* Dimensions of area to redisplay * (may be <= 0). */ int imgWidth, imgHeight; /* New dimensions of image. */ { register TkButton *butPtr = (TkButton *) clientData; if (butPtr->tkwin != NULL) { TkpComputeButtonGeometry(butPtr); if (Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } } } /* *---------------------------------------------------------------------- * * ButtonSelectImageProc -- * * This procedure is invoked by the image code whenever the manager * for an image does something that affects the size of contents * of the image displayed in a button when it is selected. * * Results: * None. * * Side effects: * May arrange for the button to get redisplayed. * *---------------------------------------------------------------------- */ static void ButtonSelectImageProc(clientData, x, y, width, height, imgWidth, imgHeight) ClientData clientData; /* Pointer to widget record. */ int x, y; /* Upper left pixel (within image) * that must be redisplayed. */ int width, height; /* Dimensions of area to redisplay * (may be <= 0). */ int imgWidth, imgHeight; /* New dimensions of image. */ { register TkButton *butPtr = (TkButton *) clientData; /* * Don't recompute geometry: it's controlled by the primary image. */ if ((butPtr->flags & SELECTED) && (butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } }