diff options
Diffstat (limited to 'generic/tkButton.c')
| -rw-r--r-- | generic/tkButton.c | 1347 |
1 files changed, 1347 insertions, 0 deletions
diff --git a/generic/tkButton.c b/generic/tkButton.c new file mode 100644 index 0000000..c9c25c2 --- /dev/null +++ b/generic/tkButton.c @@ -0,0 +1,1347 @@ +/* + * 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}, + {TK_CONFIG_STRING, "-command", "command", "Command", + 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}, + {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}, + {TK_CONFIG_STRING, "-height", "height", "Height", + 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}, + {TK_CONFIG_STRING, "-image", "image", "Image", + 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}, + {TK_CONFIG_STRING, "-offvalue", "offValue", "Value", + DEF_BUTTON_OFF_VALUE, Tk_Offset(TkButton, offValue), + CHECK_BUTTON_MASK}, + {TK_CONFIG_STRING, "-onvalue", "onValue", "Value", + 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}, + {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus", + DEF_LABEL_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus), + LABEL_MASK|TK_CONFIG_NULL_OK}, + {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus", + 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}, + {TK_CONFIG_STRING, "-value", "value", "Value", + 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}, + {TK_CONFIG_STRING, "-width", "width", "Width", + 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; + + 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; + } + + interp->result = Tk_PathName(butPtr->tkwin); + 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; + + 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; + } + if (butPtr->type == TYPE_CHECK_BUTTON) { + if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + result = TCL_ERROR; + } + } else if (butPtr->flags & SELECTED) { + if (Tcl_SetVar(interp, butPtr->selVarName, "", + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + 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; + } + if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + 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) { + if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + result = TCL_ERROR; + } + } else { + if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + 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. + */ + + value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY); + butPtr->flags &= ~SELECTED; + if (value != NULL) { + if (strcmp(value, butPtr->onValue) == 0) { + butPtr->flags |= SELECTED; + } + } else { + if (Tcl_SetVar(interp, butPtr->selVarName, + (butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "", + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + 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; + + value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY); + if (value == NULL) { + if (Tcl_SetVar(interp, butPtr->textVarName, butPtr->text, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + 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. */ +{ + if (butPtr->type == TYPE_CHECK_BUTTON) { + if (butPtr->flags & SELECTED) { + if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->offValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + return TCL_ERROR; + } + } else { + if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + return TCL_ERROR; + } + } + } else if (butPtr->type == TYPE_RADIO_BUTTON) { + if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue, + TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) { + 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. + */ + + value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY); + 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)) { + Tcl_SetVar(interp, butPtr->textVarName, butPtr->text, + TCL_GLOBAL_ONLY); + Tcl_TraceVar(interp, butPtr->textVarName, + TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, + ButtonTextVarProc, clientData); + } + return (char *) NULL; + } + + value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY); + 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; + } +} |