--- /dev/null
+/*
+ * tkButton.c --
+ *
+ * This module implements a collection of button-like
+ * widgets for the Tk toolkit. The widgets implemented
+ * include labels, buttons, checkbuttons, and radiobuttons.
+ *
+ * Copyright (c) 1990-1994 The Regents of the University of California.
+ * Copyright (c) 1994-1998 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * RCS: @(#) $Id$
+ */
+
+#include "tkButton.h"
+#include "default.h"
+
+typedef struct ThreadSpecificData {
+ int defaultsInitialized;
+} ThreadSpecificData;
+static Tcl_ThreadDataKey dataKey;
+
+/*
+ * Class names for buttons, indexed by one of the type values defined
+ * in tkButton.h.
+ */
+
+static char *classNames[] = {"Label", "Button", "Checkbutton", "Radiobutton"};
+
+/*
+ * The following table defines the legal values for the -default option.
+ * It is used together with the "enum defaultValue" declaration in tkButton.h.
+ */
+
+static char *defaultStrings[] = {
+ "active", "disabled", "normal", (char *) NULL
+};
+
+/*
+ * The following table defines the legal values for the -state option.
+ * It is used together with the "enum state" declaration in tkButton.h.
+ */
+
+static char *stateStrings[] = {
+ "active", "disabled", "normal", (char *) NULL
+};
+
+/*
+ * The following table defines the legal values for the -compound option.
+ * It is used with the "enum compound" declaration in tkButton.h
+ */
+
+static char *compoundStrings[] = {
+ "bottom", "center", "left", "none", "right", "top", (char *) NULL
+};
+
+/*
+ * Information used for parsing configuration options. There is a
+ * separate table for each of the four widget classes.
+ */
+
+static Tk_OptionSpec labelOptionSpecs[] = {
+ {TK_OPTION_BORDER, "-activebackground", "activeBackground", "Foreground",
+ DEF_BUTTON_ACTIVE_BG_COLOR, -1, Tk_Offset(TkButton, activeBorder),
+ 0, (ClientData) DEF_BUTTON_ACTIVE_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-activeforeground", "activeForeground", "Background",
+ DEF_BUTTON_ACTIVE_FG_COLOR, -1, Tk_Offset(TkButton, activeFg),
+ TK_OPTION_NULL_OK, (ClientData) DEF_BUTTON_ACTIVE_FG_MONO, 0},
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ DEF_BUTTON_ANCHOR, -1, Tk_Offset(TkButton, anchor), 0, 0, 0},
+ {TK_OPTION_BORDER, "-background", "background", "Background",
+ DEF_BUTTON_BG_COLOR, -1, Tk_Offset(TkButton, normalBorder),
+ 0, (ClientData) DEF_BUTTON_BG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-bd", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-borderwidth", 0},
+ {TK_OPTION_SYNONYM, "-bg", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-background", 0},
+ {TK_OPTION_BITMAP, "-bitmap", "bitmap", "Bitmap",
+ DEF_BUTTON_BITMAP, -1, Tk_Offset(TkButton, bitmap),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
+ DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidthPtr),
+ Tk_Offset(TkButton, borderWidth), 0, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-compound", "compound", "Compound",
+ DEF_BUTTON_COMPOUND, -1, Tk_Offset(TkButton, compound), 0,
+ (ClientData) compoundStrings, 0},
+ {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
+ DEF_BUTTON_CURSOR, -1, Tk_Offset(TkButton, cursor),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
+ "DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR,
+ -1, Tk_Offset(TkButton, disabledFg), TK_OPTION_NULL_OK,
+ (ClientData) DEF_BUTTON_DISABLED_FG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-fg", "foreground", (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-foreground", 0},
+ {TK_OPTION_FONT, "-font", "font", "Font",
+ DEF_BUTTON_FONT, -1, Tk_Offset(TkButton, tkfont), 0, 0, 0},
+ {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
+ DEF_BUTTON_FG, -1, Tk_Offset(TkButton, normalFg), 0, 0, 0},
+ {TK_OPTION_STRING, "-height", "height", "Height",
+ DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightPtr), -1, 0, 0, 0},
+ {TK_OPTION_BORDER, "-highlightbackground", "highlightBackground",
+ "HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG_COLOR,
+ -1, Tk_Offset(TkButton, highlightBorder), 0,
+ (ClientData) DEF_BUTTON_HIGHLIGHT_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
+ DEF_BUTTON_HIGHLIGHT, -1, Tk_Offset(TkButton, highlightColorPtr),
+ 0, 0, 0},
+ {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
+ "HighlightThickness", DEF_LABEL_HIGHLIGHT_WIDTH,
+ Tk_Offset(TkButton, highlightWidthPtr),
+ Tk_Offset(TkButton, highlightWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imagePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
+ DEF_BUTTON_JUSTIFY, -1, Tk_Offset(TkButton, justify), 0, 0, 0},
+ {TK_OPTION_PIXELS, "-padx", "padX", "Pad",
+ DEF_LABCHKRAD_PADX, Tk_Offset(TkButton, padXPtr),
+ Tk_Offset(TkButton, padX), 0, 0, 0},
+ {TK_OPTION_PIXELS, "-pady", "padY", "Pad",
+ DEF_LABCHKRAD_PADY, Tk_Offset(TkButton, padYPtr),
+ Tk_Offset(TkButton, padY), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-relief", "relief", "Relief",
+ DEF_LABCHKRAD_RELIEF, -1, Tk_Offset(TkButton, relief), 0, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-state", "state", "State",
+ DEF_BUTTON_STATE, -1, Tk_Offset(TkButton, state),
+ 0, (ClientData) stateStrings, 0},
+ {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
+ DEF_LABEL_TAKE_FOCUS, Tk_Offset(TkButton, takeFocusPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ DEF_BUTTON_TEXT, Tk_Offset(TkButton, textPtr), -1, 0, 0, 0},
+ {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
+ DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarNamePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_INT, "-underline", "underline", "Underline",
+ DEF_BUTTON_UNDERLINE, -1, Tk_Offset(TkButton, underline), 0, 0, 0},
+ {TK_OPTION_STRING, "-width", "width", "Width",
+ DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthPtr), -1, 0, 0, 0},
+ {TK_OPTION_PIXELS, "-wraplength", "wrapLength", "WrapLength",
+ DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLengthPtr),
+ Tk_Offset(TkButton, wrapLength), 0, 0, 0},
+ {TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, 0, 0, 0}
+};
+
+static Tk_OptionSpec buttonOptionSpecs[] = {
+ {TK_OPTION_BORDER, "-activebackground", "activeBackground", "Foreground",
+ DEF_BUTTON_ACTIVE_BG_COLOR, -1, Tk_Offset(TkButton, activeBorder),
+ 0, (ClientData) DEF_BUTTON_ACTIVE_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-activeforeground", "activeForeground", "Background",
+ DEF_BUTTON_ACTIVE_FG_COLOR, -1, Tk_Offset(TkButton, activeFg),
+ TK_OPTION_NULL_OK, (ClientData) DEF_BUTTON_ACTIVE_FG_MONO, 0},
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ DEF_BUTTON_ANCHOR, -1, Tk_Offset(TkButton, anchor), 0, 0, 0},
+ {TK_OPTION_BORDER, "-background", "background", "Background",
+ DEF_BUTTON_BG_COLOR, -1, Tk_Offset(TkButton, normalBorder),
+ 0, (ClientData) DEF_BUTTON_BG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-bd", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-borderwidth", 0},
+ {TK_OPTION_SYNONYM, "-bg", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-background", 0},
+ {TK_OPTION_BITMAP, "-bitmap", "bitmap", "Bitmap",
+ DEF_BUTTON_BITMAP, -1, Tk_Offset(TkButton, bitmap),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
+ DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidthPtr),
+ Tk_Offset(TkButton, borderWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-command", "command", "Command",
+ DEF_BUTTON_COMMAND, Tk_Offset(TkButton, commandPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-compound", "compound", "Compound",
+ DEF_BUTTON_COMPOUND, -1, Tk_Offset(TkButton, compound), 0,
+ (ClientData) compoundStrings, 0},
+ {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
+ DEF_BUTTON_CURSOR, -1, Tk_Offset(TkButton, cursor),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-default", "default", "Default",
+ DEF_BUTTON_DEFAULT, -1, Tk_Offset(TkButton, defaultState),
+ 0, (ClientData) defaultStrings, 0},
+ {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
+ "DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR,
+ -1, Tk_Offset(TkButton, disabledFg), TK_OPTION_NULL_OK,
+ (ClientData) DEF_BUTTON_DISABLED_FG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-fg", "foreground", (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-foreground", 0},
+ {TK_OPTION_FONT, "-font", "font", "Font",
+ DEF_BUTTON_FONT, -1, Tk_Offset(TkButton, tkfont), 0, 0, 0},
+ {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
+ DEF_BUTTON_FG, -1, Tk_Offset(TkButton, normalFg), 0, 0, 0},
+ {TK_OPTION_STRING, "-height", "height", "Height",
+ DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightPtr), -1, 0, 0, 0},
+ {TK_OPTION_BORDER, "-highlightbackground", "highlightBackground",
+ "HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG_COLOR,
+ -1, Tk_Offset(TkButton, highlightBorder), 0,
+ (ClientData) DEF_BUTTON_HIGHLIGHT_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
+ DEF_BUTTON_HIGHLIGHT, -1, Tk_Offset(TkButton, highlightColorPtr),
+ 0, 0, 0},
+ {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
+ "HighlightThickness", DEF_BUTTON_HIGHLIGHT_WIDTH,
+ Tk_Offset(TkButton, highlightWidthPtr),
+ Tk_Offset(TkButton, highlightWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imagePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
+ DEF_BUTTON_JUSTIFY, -1, Tk_Offset(TkButton, justify), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-overrelief", "overRelief", "OverRelief",
+ DEF_BUTTON_OVER_RELIEF, -1, Tk_Offset(TkButton, overRelief),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-padx", "padX", "Pad",
+ DEF_BUTTON_PADX, Tk_Offset(TkButton, padXPtr),
+ Tk_Offset(TkButton, padX), 0, 0, 0},
+ {TK_OPTION_PIXELS, "-pady", "padY", "Pad",
+ DEF_BUTTON_PADY, Tk_Offset(TkButton, padYPtr),
+ Tk_Offset(TkButton, padY), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-relief", "relief", "Relief",
+ DEF_BUTTON_RELIEF, -1, Tk_Offset(TkButton, relief),
+ 0, 0, 0},
+ {TK_OPTION_INT, "-repeatdelay", "repeatDelay", "RepeatDelay",
+ DEF_BUTTON_REPEAT_DELAY, -1, Tk_Offset(TkButton, repeatDelay),
+ 0, 0, 0},
+ {TK_OPTION_INT, "-repeatinterval", "repeatInterval", "RepeatInterval",
+ DEF_BUTTON_REPEAT_INTERVAL, -1, Tk_Offset(TkButton, repeatInterval),
+ 0, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-state", "state", "State",
+ DEF_BUTTON_STATE, -1, Tk_Offset(TkButton, state),
+ 0, (ClientData) stateStrings, 0},
+ {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
+ DEF_BUTTON_TAKE_FOCUS, Tk_Offset(TkButton, takeFocusPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ DEF_BUTTON_TEXT, Tk_Offset(TkButton, textPtr), -1, 0, 0, 0},
+ {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
+ DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarNamePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_INT, "-underline", "underline", "Underline",
+ DEF_BUTTON_UNDERLINE, -1, Tk_Offset(TkButton, underline), 0, 0, 0},
+ {TK_OPTION_STRING, "-width", "width", "Width",
+ DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthPtr), -1, 0, 0, 0},
+ {TK_OPTION_PIXELS, "-wraplength", "wrapLength", "WrapLength",
+ DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLengthPtr),
+ Tk_Offset(TkButton, wrapLength), 0, 0, 0},
+ {TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, 0, 0}
+};
+
+static Tk_OptionSpec checkbuttonOptionSpecs[] = {
+ {TK_OPTION_BORDER, "-activebackground", "activeBackground", "Foreground",
+ DEF_BUTTON_ACTIVE_BG_COLOR, -1, Tk_Offset(TkButton, activeBorder),
+ 0, (ClientData) DEF_BUTTON_ACTIVE_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-activeforeground", "activeForeground", "Background",
+ DEF_CHKRAD_ACTIVE_FG_COLOR, -1, Tk_Offset(TkButton, activeFg),
+ TK_OPTION_NULL_OK, (ClientData) DEF_BUTTON_ACTIVE_FG_MONO, 0},
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ DEF_BUTTON_ANCHOR, -1, Tk_Offset(TkButton, anchor), 0, 0, 0},
+ {TK_OPTION_BORDER, "-background", "background", "Background",
+ DEF_BUTTON_BG_COLOR, -1, Tk_Offset(TkButton, normalBorder),
+ 0, (ClientData) DEF_BUTTON_BG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-bd", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-borderwidth", 0},
+ {TK_OPTION_SYNONYM, "-bg", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-background", 0},
+ {TK_OPTION_BITMAP, "-bitmap", "bitmap", "Bitmap",
+ DEF_BUTTON_BITMAP, -1, Tk_Offset(TkButton, bitmap),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
+ DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidthPtr),
+ Tk_Offset(TkButton, borderWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-command", "command", "Command",
+ DEF_BUTTON_COMMAND, Tk_Offset(TkButton, commandPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-compound", "compound", "Compound",
+ DEF_BUTTON_COMPOUND, -1, Tk_Offset(TkButton, compound), 0,
+ (ClientData) compoundStrings, 0},
+ {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
+ DEF_BUTTON_CURSOR, -1, Tk_Offset(TkButton, cursor),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
+ "DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR,
+ -1, Tk_Offset(TkButton, disabledFg), TK_OPTION_NULL_OK,
+ (ClientData) DEF_BUTTON_DISABLED_FG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-fg", "foreground", (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-foreground", 0},
+ {TK_OPTION_FONT, "-font", "font", "Font",
+ DEF_BUTTON_FONT, -1, Tk_Offset(TkButton, tkfont), 0, 0, 0},
+ {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
+ DEF_CHKRAD_FG, -1, Tk_Offset(TkButton, normalFg), 0, 0, 0},
+ {TK_OPTION_STRING, "-height", "height", "Height",
+ DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightPtr), -1, 0, 0, 0},
+ {TK_OPTION_BORDER, "-highlightbackground", "highlightBackground",
+ "HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG_COLOR,
+ -1, Tk_Offset(TkButton, highlightBorder), 0,
+ (ClientData) DEF_BUTTON_HIGHLIGHT_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
+ DEF_BUTTON_HIGHLIGHT, -1, Tk_Offset(TkButton, highlightColorPtr),
+ 0, 0, 0},
+ {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
+ "HighlightThickness", DEF_BUTTON_HIGHLIGHT_WIDTH,
+ Tk_Offset(TkButton, highlightWidthPtr),
+ Tk_Offset(TkButton, highlightWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imagePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn",
+ DEF_BUTTON_INDICATOR, -1, Tk_Offset(TkButton, indicatorOn), 0, 0, 0},
+ {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
+ DEF_BUTTON_JUSTIFY, -1, Tk_Offset(TkButton, justify), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-offrelief", "offRelief", "OffRelief",
+ DEF_BUTTON_RELIEF, -1, Tk_Offset(TkButton, offRelief), 0, 0, 0},
+ {TK_OPTION_STRING, "-offvalue", "offValue", "Value",
+ DEF_BUTTON_OFF_VALUE, Tk_Offset(TkButton, offValuePtr), -1, 0, 0, 0},
+ {TK_OPTION_STRING, "-onvalue", "onValue", "Value",
+ DEF_BUTTON_ON_VALUE, Tk_Offset(TkButton, onValuePtr), -1, 0, 0, 0},
+ {TK_OPTION_RELIEF, "-overrelief", "overRelief", "OverRelief",
+ DEF_BUTTON_OVER_RELIEF, -1, Tk_Offset(TkButton, overRelief),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-padx", "padX", "Pad",
+ DEF_LABCHKRAD_PADX, Tk_Offset(TkButton, padXPtr),
+ Tk_Offset(TkButton, padX), 0, 0, 0},
+ {TK_OPTION_PIXELS, "-pady", "padY", "Pad",
+ DEF_LABCHKRAD_PADY, Tk_Offset(TkButton, padYPtr),
+ Tk_Offset(TkButton, padY), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-relief", "relief", "Relief",
+ DEF_LABCHKRAD_RELIEF, -1, Tk_Offset(TkButton, relief), 0, 0, 0},
+ {TK_OPTION_BORDER, "-selectcolor", "selectColor", "Background",
+ DEF_BUTTON_SELECT_COLOR, -1, Tk_Offset(TkButton, selectBorder),
+ TK_OPTION_NULL_OK, (ClientData) DEF_BUTTON_SELECT_MONO, 0},
+ {TK_OPTION_STRING, "-selectimage", "selectImage", "SelectImage",
+ DEF_BUTTON_SELECT_IMAGE, Tk_Offset(TkButton, selectImagePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-state", "state", "State",
+ DEF_BUTTON_STATE, -1, Tk_Offset(TkButton, state),
+ 0, (ClientData) stateStrings, 0},
+ {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
+ DEF_BUTTON_TAKE_FOCUS, Tk_Offset(TkButton, takeFocusPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ DEF_BUTTON_TEXT, Tk_Offset(TkButton, textPtr), -1, 0, 0, 0},
+ {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
+ DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarNamePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_INT, "-underline", "underline", "Underline",
+ DEF_BUTTON_UNDERLINE, -1, Tk_Offset(TkButton, underline), 0, 0, 0},
+ {TK_OPTION_STRING, "-variable", "variable", "Variable",
+ DEF_CHECKBUTTON_VARIABLE, Tk_Offset(TkButton, selVarNamePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING, "-width", "width", "Width",
+ DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthPtr), -1, 0, 0, 0},
+ {TK_OPTION_PIXELS, "-wraplength", "wrapLength", "WrapLength",
+ DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLengthPtr),
+ Tk_Offset(TkButton, wrapLength), 0, 0, 0},
+ {TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, 0, 0}
+};
+
+static Tk_OptionSpec radiobuttonOptionSpecs[] = {
+ {TK_OPTION_BORDER, "-activebackground", "activeBackground", "Foreground",
+ DEF_BUTTON_ACTIVE_BG_COLOR, -1, Tk_Offset(TkButton, activeBorder),
+ 0, (ClientData) DEF_BUTTON_ACTIVE_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-activeforeground", "activeForeground", "Background",
+ DEF_CHKRAD_ACTIVE_FG_COLOR, -1, Tk_Offset(TkButton, activeFg),
+ TK_OPTION_NULL_OK, (ClientData) DEF_BUTTON_ACTIVE_FG_MONO, 0},
+ {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
+ DEF_BUTTON_ANCHOR, -1, Tk_Offset(TkButton, anchor), 0, 0, 0},
+ {TK_OPTION_BORDER, "-background", "background", "Background",
+ DEF_BUTTON_BG_COLOR, -1, Tk_Offset(TkButton, normalBorder),
+ 0, (ClientData) DEF_BUTTON_BG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-bd", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-borderwidth", 0},
+ {TK_OPTION_SYNONYM, "-bg", (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-background", 0},
+ {TK_OPTION_BITMAP, "-bitmap", "bitmap", "Bitmap",
+ DEF_BUTTON_BITMAP, -1, Tk_Offset(TkButton, bitmap),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
+ DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidthPtr),
+ Tk_Offset(TkButton, borderWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-command", "command", "Command",
+ DEF_BUTTON_COMMAND, Tk_Offset(TkButton, commandPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-compound", "compound", "Compound",
+ DEF_BUTTON_COMPOUND, -1, Tk_Offset(TkButton, compound), 0,
+ (ClientData) compoundStrings, 0},
+ {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
+ DEF_BUTTON_CURSOR, -1, Tk_Offset(TkButton, cursor),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
+ "DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR,
+ -1, Tk_Offset(TkButton, disabledFg), TK_OPTION_NULL_OK,
+ (ClientData) DEF_BUTTON_DISABLED_FG_MONO, 0},
+ {TK_OPTION_SYNONYM, "-fg", "foreground", (char *) NULL,
+ (char *) NULL, 0, -1, 0, (ClientData) "-foreground", 0},
+ {TK_OPTION_FONT, "-font", "font", "Font",
+ DEF_BUTTON_FONT, -1, Tk_Offset(TkButton, tkfont), 0, 0, 0},
+ {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
+ DEF_CHKRAD_FG, -1, Tk_Offset(TkButton, normalFg), 0, 0, 0},
+ {TK_OPTION_STRING, "-height", "height", "Height",
+ DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightPtr), -1, 0, 0, 0},
+ {TK_OPTION_BORDER, "-highlightbackground", "highlightBackground",
+ "HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG_COLOR,
+ -1, Tk_Offset(TkButton, highlightBorder), 0,
+ (ClientData) DEF_BUTTON_HIGHLIGHT_BG_MONO, 0},
+ {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
+ DEF_BUTTON_HIGHLIGHT, -1, Tk_Offset(TkButton, highlightColorPtr),
+ 0, 0, 0},
+ {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
+ "HighlightThickness", DEF_BUTTON_HIGHLIGHT_WIDTH,
+ Tk_Offset(TkButton, highlightWidthPtr),
+ Tk_Offset(TkButton, highlightWidth), 0, 0, 0},
+ {TK_OPTION_STRING, "-image", "image", "Image",
+ DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imagePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn",
+ DEF_BUTTON_INDICATOR, -1, Tk_Offset(TkButton, indicatorOn),
+ 0, 0, 0},
+ {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
+ DEF_BUTTON_JUSTIFY, -1, Tk_Offset(TkButton, justify), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-offrelief", "offRelief", "OffRelief",
+ DEF_BUTTON_RELIEF, -1, Tk_Offset(TkButton, offRelief), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-overrelief", "overRelief", "OverRelief",
+ DEF_BUTTON_OVER_RELIEF, -1, Tk_Offset(TkButton, overRelief),
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_PIXELS, "-padx", "padX", "Pad",
+ DEF_LABCHKRAD_PADX, Tk_Offset(TkButton, padXPtr),
+ Tk_Offset(TkButton, padX), 0, 0, 0},
+ {TK_OPTION_PIXELS, "-pady", "padY", "Pad",
+ DEF_LABCHKRAD_PADY, Tk_Offset(TkButton, padYPtr),
+ Tk_Offset(TkButton, padY), 0, 0, 0},
+ {TK_OPTION_RELIEF, "-relief", "relief", "Relief",
+ DEF_LABCHKRAD_RELIEF, -1, Tk_Offset(TkButton, relief), 0, 0, 0},
+ {TK_OPTION_BORDER, "-selectcolor", "selectColor", "Background",
+ DEF_BUTTON_SELECT_COLOR, -1, Tk_Offset(TkButton, selectBorder),
+ TK_OPTION_NULL_OK, (ClientData) DEF_BUTTON_SELECT_MONO, 0},
+ {TK_OPTION_STRING, "-selectimage", "selectImage", "SelectImage",
+ DEF_BUTTON_SELECT_IMAGE, Tk_Offset(TkButton, selectImagePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING_TABLE, "-state", "state", "State",
+ DEF_BUTTON_STATE, -1, Tk_Offset(TkButton, state),
+ 0, (ClientData) stateStrings, 0},
+ {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
+ DEF_BUTTON_TAKE_FOCUS, Tk_Offset(TkButton, takeFocusPtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_STRING, "-text", "text", "Text",
+ DEF_BUTTON_TEXT, Tk_Offset(TkButton, textPtr), -1, 0, 0, 0},
+ {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
+ DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarNamePtr), -1,
+ TK_OPTION_NULL_OK, 0, 0},
+ {TK_OPTION_INT, "-underline", "underline", "Underline",
+ DEF_BUTTON_UNDERLINE, -1, Tk_Offset(TkButton, underline), 0, 0, 0},
+ {TK_OPTION_STRING, "-value", "value", "Value",
+ DEF_BUTTON_VALUE, Tk_Offset(TkButton, onValuePtr), -1, 0, 0, 0},
+ {TK_OPTION_STRING, "-variable", "variable", "Variable",
+ DEF_RADIOBUTTON_VARIABLE, Tk_Offset(TkButton, selVarNamePtr), -1,
+ 0, 0, 0},
+ {TK_OPTION_STRING, "-width", "width", "Width",
+ DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthPtr), -1, 0, 0, 0},
+ {TK_OPTION_PIXELS, "-wraplength", "wrapLength", "WrapLength",
+ DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLengthPtr),
+ Tk_Offset(TkButton, wrapLength), 0, 0, 0},
+ {TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL,
+ (char *) NULL, 0, -1, 0, 0, 0}
+};
+
+/*
+ * The following table maps from one of the type values defined in
+ * tkButton.h, such as TYPE_LABEL, to the option template for that
+ * class of widgets.
+ */
+
+static Tk_OptionSpec *optionSpecs[] = {
+ labelOptionSpecs,
+ buttonOptionSpecs,
+ checkbuttonOptionSpecs,
+ radiobuttonOptionSpecs
+};
+
+/*
+ * The following tables define the widget commands supported by
+ * each of the classes, and map the indexes into the string tables
+ * into a single enumerated type used to dispatch the widget command.
+ */
+
+static CONST char *commandNames[][8] = {
+ {"cget", "configure", (char *) NULL},
+ {"cget", "configure", "flash", "invoke", (char *) NULL},
+ {"cget", "configure", "deselect", "flash", "invoke", "select",
+ "toggle", (char *) NULL},
+ {"cget", "configure", "deselect", "flash", "invoke", "select",
+ (char *) NULL}
+};
+enum command {
+ COMMAND_CGET, COMMAND_CONFIGURE, COMMAND_DESELECT, COMMAND_FLASH,
+ COMMAND_INVOKE, COMMAND_SELECT, COMMAND_TOGGLE
+};
+static enum command map[][8] = {
+ {COMMAND_CGET, COMMAND_CONFIGURE},
+ {COMMAND_CGET, COMMAND_CONFIGURE, COMMAND_FLASH, COMMAND_INVOKE},
+ {COMMAND_CGET, COMMAND_CONFIGURE, COMMAND_DESELECT, COMMAND_FLASH,
+ COMMAND_INVOKE, COMMAND_SELECT, COMMAND_TOGGLE},
+ {COMMAND_CGET, COMMAND_CONFIGURE, COMMAND_DESELECT, COMMAND_FLASH,
+ COMMAND_INVOKE, COMMAND_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 objc,
+ Tcl_Obj *CONST objv[], 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, CONST char *name1,
+ CONST char *name2, int flags));
+static char * ButtonVarProc _ANSI_ARGS_((ClientData clientData,
+ Tcl_Interp *interp, CONST char *name1,
+ CONST char *name2, int flags));
+static int ButtonWidgetObjCmd _ANSI_ARGS_((ClientData clientData,
+ Tcl_Interp *interp, int objc,
+ Tcl_Obj *CONST objv[]));
+static int ConfigureButton _ANSI_ARGS_((Tcl_Interp *interp,
+ TkButton *butPtr, int objc,
+ Tcl_Obj *CONST objv[]));
+static void DestroyButton _ANSI_ARGS_((TkButton *butPtr));
+\f
+/*
+ *--------------------------------------------------------------
+ *
+ * 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_ButtonObjCmd(clientData, interp, objc, objv)
+ ClientData clientData; /* Either NULL or pointer to option table. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+{
+ return ButtonCreate(clientData, interp, objc, objv, TYPE_BUTTON);
+}
+
+int
+Tk_CheckbuttonObjCmd(clientData, interp, objc, objv)
+ ClientData clientData; /* Either NULL or pointer to option table. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+{
+ return ButtonCreate(clientData, interp, objc, objv, TYPE_CHECK_BUTTON);
+}
+
+int
+Tk_LabelObjCmd(clientData, interp, objc, objv)
+ ClientData clientData; /* Either NULL or pointer to option table. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+{
+ return ButtonCreate(clientData, interp, objc, objv, TYPE_LABEL);
+}
+
+int
+Tk_RadiobuttonObjCmd(clientData, interp, objc, objv)
+ ClientData clientData; /* Either NULL or pointer to option table. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+{
+ return ButtonCreate(clientData, interp, objc, objv, TYPE_RADIO_BUTTON);
+}
+\f
+/*
+ *--------------------------------------------------------------
+ *
+ * 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, objc, objv, type)
+ ClientData clientData; /* NULL. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+ int type; /* Type of button to create: TYPE_LABEL,
+ * TYPE_BUTTON, TYPE_CHECK_BUTTON, or
+ * TYPE_RADIO_BUTTON. */
+{
+ TkButton *butPtr;
+ Tk_OptionTable optionTable;
+ Tk_Window tkwin;
+ ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
+ Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
+
+ if (!tsdPtr->defaultsInitialized) {
+ TkpButtonSetDefaults(optionSpecs[type]);
+ tsdPtr->defaultsInitialized = 1;
+ }
+
+ if (objc < 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "pathName ?options?");
+ return TCL_ERROR;
+ }
+
+ /*
+ * Create the new window.
+ */
+
+ tkwin = Tk_CreateWindowFromPath(interp, Tk_MainWindow(interp),
+ Tcl_GetString(objv[1]), (char *) NULL);
+ if (tkwin == NULL) {
+ return TCL_ERROR;
+ }
+
+ /*
+ * Create the option table for this widget class. If it has already
+ * been created, the cached pointer will be returned.
+ */
+
+ optionTable = Tk_CreateOptionTable(interp, optionSpecs[type]);
+
+ Tk_SetClass(tkwin, classNames[type]);
+ butPtr = TkpCreateButton(tkwin);
+
+ Tk_SetClassProcs(tkwin, &tkpButtonProcs, (ClientData) butPtr);
+
+ /*
+ * Initialize the data structure for the button.
+ */
+
+ butPtr->tkwin = tkwin;
+ butPtr->display = Tk_Display(tkwin);
+ butPtr->interp = interp;
+ butPtr->widgetCmd = Tcl_CreateObjCommand(interp, Tk_PathName(tkwin),
+ ButtonWidgetObjCmd, (ClientData) butPtr, ButtonCmdDeletedProc);
+ butPtr->type = type;
+ butPtr->optionTable = optionTable;
+ butPtr->textPtr = NULL;
+ butPtr->underline = -1;
+ butPtr->textVarNamePtr = NULL;
+ butPtr->bitmap = None;
+ butPtr->imagePtr = NULL;
+ butPtr->image = NULL;
+ butPtr->selectImagePtr = NULL;
+ butPtr->selectImage = NULL;
+ butPtr->state = STATE_NORMAL;
+ butPtr->normalBorder = NULL;
+ butPtr->activeBorder = NULL;
+ butPtr->borderWidthPtr = NULL;
+ butPtr->borderWidth = 0;
+ butPtr->relief = TK_RELIEF_FLAT;
+ butPtr->highlightWidthPtr = NULL;
+ 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->disabledGC = None;
+ butPtr->gray = None;
+ butPtr->copyGC = None;
+ butPtr->widthPtr = NULL;
+ butPtr->width = 0;
+ butPtr->heightPtr = NULL;
+ butPtr->height = 0;
+ butPtr->wrapLengthPtr = NULL;
+ butPtr->wrapLength = 0;
+ butPtr->padXPtr = NULL;
+ butPtr->padX = 0;
+ butPtr->padYPtr = NULL;
+ butPtr->padY = 0;
+ butPtr->anchor = TK_ANCHOR_CENTER;
+ butPtr->justify = TK_JUSTIFY_CENTER;
+ butPtr->indicatorOn = 0;
+ butPtr->selectBorder = NULL;
+ butPtr->textWidth = 0;
+ butPtr->textHeight = 0;
+ butPtr->textLayout = NULL;
+ butPtr->indicatorSpace = 0;
+ butPtr->indicatorDiameter = 0;
+ butPtr->defaultState = DEFAULT_DISABLED;
+ butPtr->selVarNamePtr = NULL;
+ butPtr->onValuePtr = NULL;
+ butPtr->offValuePtr = NULL;
+ butPtr->cursor = None;
+ butPtr->takeFocusPtr = NULL;
+ butPtr->commandPtr = NULL;
+ butPtr->flags = 0;
+
+ Tk_CreateEventHandler(butPtr->tkwin,
+ ExposureMask|StructureNotifyMask|FocusChangeMask,
+ ButtonEventProc, (ClientData) butPtr);
+
+ if (Tk_InitOptions(interp, (char *) butPtr, optionTable, tkwin)
+ != TCL_OK) {
+ Tk_DestroyWindow(butPtr->tkwin);
+ return TCL_ERROR;
+ }
+ if (ConfigureButton(interp, butPtr, objc - 2, objv + 2) != TCL_OK) {
+ Tk_DestroyWindow(butPtr->tkwin);
+ return TCL_ERROR;
+ }
+
+ Tcl_SetStringObj(Tcl_GetObjResult(interp), Tk_PathName(butPtr->tkwin),
+ -1);
+ return TCL_OK;
+}
+\f
+/*
+ *--------------------------------------------------------------
+ *
+ * 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
+ButtonWidgetObjCmd(clientData, interp, objc, objv)
+ ClientData clientData; /* Information about button widget. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+{
+ TkButton *butPtr = (TkButton *) clientData;
+ int index;
+ int result;
+ Tcl_Obj *objPtr;
+
+ if (objc < 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
+ return TCL_ERROR;
+ }
+ result = Tcl_GetIndexFromObj(interp, objv[1], commandNames[butPtr->type],
+ "option", 0, &index);
+ if (result != TCL_OK) {
+ return result;
+ }
+ Tcl_Preserve((ClientData) butPtr);
+
+ switch (map[butPtr->type][index]) {
+ case COMMAND_CGET: {
+ if (objc != 3) {
+ Tcl_WrongNumArgs(interp, 1, objv, "cget option");
+ goto error;
+ }
+ objPtr = Tk_GetOptionValue(interp, (char *) butPtr,
+ butPtr->optionTable, objv[2], butPtr->tkwin);
+ if (objPtr == NULL) {
+ goto error;
+ } else {
+ Tcl_SetObjResult(interp, objPtr);
+ }
+ break;
+ }
+
+ case COMMAND_CONFIGURE: {
+ if (objc <= 3) {
+ objPtr = Tk_GetOptionInfo(interp, (char *) butPtr,
+ butPtr->optionTable,
+ (objc == 3) ? objv[2] : (Tcl_Obj *) NULL,
+ butPtr->tkwin);
+ if (objPtr == NULL) {
+ goto error;
+ } else {
+ Tcl_SetObjResult(interp, objPtr);
+ }
+ } else {
+ result = ConfigureButton(interp, butPtr, objc-2, objv+2);
+ }
+ break;
+ }
+
+ case COMMAND_DESELECT: {
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "deselect");
+ goto error;
+ }
+ if (butPtr->type == TYPE_CHECK_BUTTON) {
+ if (Tcl_ObjSetVar2(interp, butPtr->selVarNamePtr, NULL,
+ butPtr->offValuePtr, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ goto error;
+ }
+ } else if (butPtr->flags & SELECTED) {
+ if (Tcl_ObjSetVar2(interp,
+ butPtr->selVarNamePtr, NULL, Tcl_NewObj(),
+ TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ goto error;
+ }
+ }
+ break;
+ }
+
+ case COMMAND_FLASH: {
+ int i;
+
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "flash");
+ goto error;
+ }
+ if (butPtr->state != STATE_DISABLED) {
+ for (i = 0; i < 4; i++) {
+ if (butPtr->state == STATE_NORMAL) {
+ butPtr->state = STATE_ACTIVE;
+ Tk_SetBackgroundFromBorder(butPtr->tkwin,
+ butPtr->activeBorder);
+ } else {
+ butPtr->state = STATE_NORMAL;
+ Tk_SetBackgroundFromBorder(butPtr->tkwin,
+ 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);
+ }
+ }
+ break;
+ }
+
+ case COMMAND_INVOKE: {
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "invoke");
+ goto error;
+ }
+ if (butPtr->state != STATE_DISABLED) {
+ result = TkInvokeButton(butPtr);
+ }
+ break;
+ }
+
+ case COMMAND_SELECT: {
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "select");
+ goto error;
+ }
+ if (Tcl_ObjSetVar2(interp, butPtr->selVarNamePtr, NULL,
+ butPtr->onValuePtr, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ goto error;
+ }
+ break;
+ }
+
+ case COMMAND_TOGGLE: {
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "toggle");
+ goto error;
+ }
+ if (Tcl_ObjSetVar2(interp, butPtr->selVarNamePtr, NULL,
+ (butPtr->flags & SELECTED) ? butPtr->offValuePtr
+ : butPtr->onValuePtr,
+ TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ goto error;
+ }
+ break;
+ }
+ }
+ Tcl_Release((ClientData) butPtr);
+ return result;
+
+ error:
+ Tcl_Release((ClientData) butPtr);
+ return TCL_ERROR;
+}
+\f
+/*
+ *----------------------------------------------------------------------
+ *
+ * DestroyButton --
+ *
+ * This procedure is invoked by ButtonEventProc to free all the
+ * resources of a button and clean up its state.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Everything associated with the widget is freed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DestroyButton(butPtr)
+ TkButton *butPtr; /* Info about button widget. */
+{
+ butPtr->flags |= BUTTON_DELETED;
+ TkpDestroyButton(butPtr);
+
+ if (butPtr->flags & REDRAW_PENDING) {
+ Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr);
+ }
+
+ /*
+ * Free up all the stuff that requires special handling, then
+ * let Tk_FreeOptions handle all the standard option-related
+ * stuff.
+ */
+
+ Tcl_DeleteCommandFromToken(butPtr->interp, butPtr->widgetCmd);
+ if (butPtr->textVarNamePtr != NULL) {
+ Tcl_UntraceVar(butPtr->interp, Tcl_GetString(butPtr->textVarNamePtr),
+ 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->disabledGC != None) {
+ Tk_FreeGC(butPtr->display, butPtr->disabledGC);
+ }
+ if (butPtr->gray != None) {
+ Tk_FreeBitmap(butPtr->display, butPtr->gray);
+ }
+ if (butPtr->copyGC != None) {
+ Tk_FreeGC(butPtr->display, butPtr->copyGC);
+ }
+ if (butPtr->textLayout != NULL) {
+ Tk_FreeTextLayout(butPtr->textLayout);
+ }
+ if (butPtr->selVarNamePtr != NULL) {
+ Tcl_UntraceVar(butPtr->interp, Tcl_GetString(butPtr->selVarNamePtr),
+ TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ ButtonVarProc, (ClientData) butPtr);
+ }
+ Tk_FreeConfigOptions((char *) butPtr, butPtr->optionTable,
+ butPtr->tkwin);
+ butPtr->tkwin = NULL;
+ Tcl_EventuallyFree((ClientData) butPtr, TCL_DYNAMIC);
+}
+\f
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConfigureButton --
+ *
+ * This procedure is called to process an objc/objv list to set
+ * configuration options for a button widget.
+ *
+ * Results:
+ * The return value is a standard Tcl result. If TCL_ERROR is
+ * returned, then an error message is left in interp's result.
+ *
+ * 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, objc, objv)
+ Tcl_Interp *interp; /* Used for error reporting. */
+ register TkButton *butPtr; /* Information about widget; may or may
+ * not already have values for some fields. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument values. */
+{
+ Tk_SavedOptions savedOptions;
+ Tcl_Obj *errorResult = NULL;
+ int error, haveImage;
+ Tk_Image image;
+
+ /*
+ * Eliminate any existing trace on variables monitored by the button.
+ */
+
+ if (butPtr->textVarNamePtr != NULL) {
+ Tcl_UntraceVar(interp, Tcl_GetString(butPtr->textVarNamePtr),
+ TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ ButtonTextVarProc, (ClientData) butPtr);
+ }
+ if (butPtr->selVarNamePtr != NULL) {
+ Tcl_UntraceVar(interp, Tcl_GetString(butPtr->selVarNamePtr),
+ TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ ButtonVarProc, (ClientData) butPtr);
+ }
+
+ /*
+ * The following loop is potentially executed twice. During the
+ * first pass configuration options get set to their new values.
+ * If there is an error in this pass, we execute a second pass
+ * to restore all the options to their previous values.
+ */
+
+ for (error = 0; error <= 1; error++) {
+ if (!error) {
+ /*
+ * First pass: set options to new values.
+ */
+
+ if (Tk_SetOptions(interp, (char *) butPtr,
+ butPtr->optionTable, objc, objv,
+ butPtr->tkwin, &savedOptions, (int *) NULL) != TCL_OK) {
+ continue;
+ }
+ } else {
+ /*
+ * Second pass: restore options to old values.
+ */
+
+ errorResult = Tcl_GetObjResult(interp);
+ Tcl_IncrRefCount(errorResult);
+ Tk_RestoreSavedOptions(&savedOptions);
+ }
+
+ /*
+ * 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_SetOptions.
+ */
+
+ if ((butPtr->state == STATE_ACTIVE)
+ && !Tk_StrictMotif(butPtr->tkwin)) {
+ Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->activeBorder);
+ } else {
+ Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->normalBorder);
+ }
+ if (butPtr->borderWidth < 0) {
+ butPtr->borderWidth = 0;
+ }
+ 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) {
+ Tcl_Obj *valuePtr, *namePtr;
+
+ if (butPtr->selVarNamePtr == NULL) {
+ butPtr->selVarNamePtr = Tcl_NewStringObj(
+ Tk_Name(butPtr->tkwin), -1);
+ Tcl_IncrRefCount(butPtr->selVarNamePtr);
+ }
+ namePtr = butPtr->selVarNamePtr;
+
+ /*
+ * 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.
+ */
+
+ valuePtr = Tcl_ObjGetVar2(interp, namePtr, NULL, TCL_GLOBAL_ONLY);
+ butPtr->flags &= ~SELECTED;
+ if (valuePtr != NULL) {
+ if (strcmp(Tcl_GetString(valuePtr),
+ Tcl_GetString(butPtr->onValuePtr)) == 0) {
+ butPtr->flags |= SELECTED;
+ }
+ } else {
+ if (Tcl_ObjSetVar2(interp, namePtr, NULL,
+ (butPtr->type == TYPE_CHECK_BUTTON)
+ ? butPtr->offValuePtr : Tcl_NewObj(),
+ TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ continue;
+ }
+
+ /*
+ * If a radiobutton has the empty string as value
+ * it should be selected.
+ */
+
+ if ((butPtr->type == TYPE_RADIO_BUTTON) &&
+ (*Tcl_GetString(butPtr->onValuePtr) == 0)) {
+ butPtr->flags |= SELECTED;
+ }
+ }
+ }
+
+ /*
+ * 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->imagePtr != NULL) {
+ image = Tk_GetImage(butPtr->interp, butPtr->tkwin,
+ Tcl_GetString(butPtr->imagePtr), ButtonImageProc,
+ (ClientData) butPtr);
+ if (image == NULL) {
+ continue;
+ }
+ } else {
+ image = NULL;
+ }
+ if (butPtr->image != NULL) {
+ Tk_FreeImage(butPtr->image);
+ }
+ butPtr->image = image;
+ if (butPtr->selectImagePtr != NULL) {
+ image = Tk_GetImage(butPtr->interp, butPtr->tkwin,
+ Tcl_GetString(butPtr->selectImagePtr),
+ ButtonSelectImageProc, (ClientData) butPtr);
+ if (image == NULL) {
+ continue;
+ }
+ } else {
+ image = NULL;
+ }
+ if (butPtr->selectImage != NULL) {
+ Tk_FreeImage(butPtr->selectImage);
+ }
+ butPtr->selectImage = image;
+
+ haveImage = 0;
+ if (butPtr->imagePtr != NULL || butPtr->bitmap != None) {
+ haveImage = 1;
+ }
+ if ((!haveImage || butPtr->compound != COMPOUND_NONE)
+ && (butPtr->textVarNamePtr != 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.
+ */
+
+ Tcl_Obj *valuePtr, *namePtr;
+
+ namePtr = butPtr->textVarNamePtr;
+ valuePtr = Tcl_ObjGetVar2(interp, namePtr, NULL, TCL_GLOBAL_ONLY);
+ if (valuePtr == NULL) {
+ if (Tcl_ObjSetVar2(interp, namePtr, NULL, butPtr->textPtr,
+ TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ continue;
+ }
+ } else {
+ if (butPtr->textPtr != NULL) {
+ Tcl_DecrRefCount(butPtr->textPtr);
+ }
+ butPtr->textPtr = valuePtr;
+ Tcl_IncrRefCount(butPtr->textPtr);
+ }
+ }
+
+ if ((butPtr->bitmap != None) || (butPtr->imagePtr != NULL)) {
+ /*
+ * The button must display the contents of an image or
+ * bitmap.
+ */
+
+ if (Tk_GetPixelsFromObj(interp, butPtr->tkwin, butPtr->widthPtr,
+ &butPtr->width) != TCL_OK) {
+ widthError:
+ Tcl_AddErrorInfo(interp, "\n (processing -width option)");
+ continue;
+ }
+ if (Tk_GetPixelsFromObj(interp, butPtr->tkwin, butPtr->heightPtr,
+ &butPtr->height) != TCL_OK) {
+ heightError:
+ Tcl_AddErrorInfo(interp, "\n (processing -height option)");
+ continue;
+ }
+ } else {
+ /*
+ * The button displays an ordinary text string.
+ */
+
+ if (Tcl_GetIntFromObj(interp, butPtr->widthPtr, &butPtr->width)
+ != TCL_OK) {
+ goto widthError;
+ }
+ if (Tcl_GetIntFromObj(interp, butPtr->heightPtr, &butPtr->height)
+ != TCL_OK) {
+ goto heightError;
+ }
+ }
+ break;
+ }
+ if (!error) {
+ Tk_FreeSavedOptions(&savedOptions);
+ }
+
+ /*
+ * Reestablish the variable traces, if they're needed.
+ */
+
+ if (butPtr->textVarNamePtr != NULL) {
+ Tcl_TraceVar(interp, Tcl_GetString(butPtr->textVarNamePtr),
+ TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ ButtonTextVarProc, (ClientData) butPtr);
+ }
+ if (butPtr->selVarNamePtr != NULL) {
+ Tcl_TraceVar(interp, Tcl_GetString(butPtr->selVarNamePtr),
+ TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ ButtonVarProc, (ClientData) butPtr);
+ }
+
+ TkButtonWorldChanged((ClientData) butPtr);
+ if (error) {
+ Tcl_SetObjResult(interp, errorResult);
+ Tcl_DecrRefCount(errorResult);
+ return TCL_ERROR;
+ } else {
+ return TCL_OK;
+ }
+}
+\f
+/*
+ *---------------------------------------------------------------------------
+ *
+ * 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.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;
+ }
+
+ /*
+ * Allocate the disabled graphics context, for drawing the widget in
+ * its disabled state
+ */
+ gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel;
+ if ((butPtr->disabledFg != NULL) && (butPtr->imagePtr == NULL)) {
+ gcValues.foreground = butPtr->disabledFg->pixel;
+ mask = GCForeground | GCBackground | GCFont;
+ } else {
+ gcValues.foreground = gcValues.background;
+ mask = GCForeground;
+ if (butPtr->compound != COMPOUND_NONE) {
+ mask |= GCFont;
+ }
+ if (butPtr->gray == None) {
+ butPtr->gray = Tk_GetBitmap(NULL, butPtr->tkwin, "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;
+ }
+}
+\f
+/*
+ *--------------------------------------------------------------
+ *
+ * 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) {
+ 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;
+ }
+}
+\f
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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;
+
+ /*
+ * This procedure could be invoked either because the window was
+ * destroyed and the command was then deleted or because the command
+ * was deleted, and then this procedure destroys the widget. The
+ * BUTTON_DELETED flag distinguishes these cases.
+ */
+
+ if (!(butPtr->flags & BUTTON_DELETED)) {
+ Tk_DestroyWindow(butPtr->tkwin);
+ }
+}
+\f
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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
+ * the interp's result.
+ *
+ * Side effects:
+ * Depends on the button and its associated command.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TkInvokeButton(butPtr)
+ TkButton *butPtr; /* Information about button. */
+{
+ Tcl_Obj *namePtr = butPtr->selVarNamePtr;
+
+ if (butPtr->type == TYPE_CHECK_BUTTON) {
+ if (butPtr->flags & SELECTED) {
+ if (Tcl_ObjSetVar2(butPtr->interp, namePtr, NULL,
+ butPtr->offValuePtr, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ return TCL_ERROR;
+ }
+ } else {
+ if (Tcl_ObjSetVar2(butPtr->interp, namePtr, NULL,
+ butPtr->onValuePtr, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ return TCL_ERROR;
+ }
+ }
+ } else if (butPtr->type == TYPE_RADIO_BUTTON) {
+ if (Tcl_ObjSetVar2(butPtr->interp, namePtr, NULL, butPtr->onValuePtr,
+ TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG)
+ == NULL) {
+ return TCL_ERROR;
+ }
+ }
+ if ((butPtr->type != TYPE_LABEL) && (butPtr->commandPtr != NULL)) {
+ return Tcl_EvalObjEx(butPtr->interp, butPtr->commandPtr,
+ TCL_EVAL_GLOBAL);
+ }
+ return TCL_OK;
+}
+\f
+/*
+ *--------------------------------------------------------------
+ *
+ * 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. */
+ CONST char *name1; /* Name of variable. */
+ CONST char *name2; /* Second part of variable name. */
+ int flags; /* Information about what happened. */
+{
+ register TkButton *butPtr = (TkButton *) clientData;
+ char *name, *value;
+ Tcl_Obj *valuePtr;
+
+ name = Tcl_GetString(butPtr->selVarNamePtr);
+
+ /*
+ * 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, name,
+ 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.
+ */
+
+ valuePtr = Tcl_GetVar2Ex(interp, name, NULL, TCL_GLOBAL_ONLY);
+ if (valuePtr == NULL) {
+ value = "";
+ } else {
+ value = Tcl_GetString(valuePtr);
+ }
+ if (strcmp(value, Tcl_GetString(butPtr->onValuePtr)) == 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;
+}
+\f
+/*
+ *--------------------------------------------------------------
+ *
+ * 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. */
+ CONST char *name1; /* Not used. */
+ CONST char *name2; /* Not used. */
+ int flags; /* Information about what happened. */
+{
+ TkButton *butPtr = (TkButton *) clientData;
+ char *name;
+ Tcl_Obj *valuePtr;
+
+ if (butPtr->flags & BUTTON_DELETED) {
+ return (char *) NULL;
+ }
+
+ name = Tcl_GetString(butPtr->textVarNamePtr);
+
+ /*
+ * 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_SetVar2Ex(interp, name, NULL, butPtr->textPtr,
+ TCL_GLOBAL_ONLY);
+ Tcl_TraceVar(interp, name,
+ TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ ButtonTextVarProc, clientData);
+ }
+ return (char *) NULL;
+ }
+
+ valuePtr = Tcl_GetVar2Ex(interp, name, NULL, TCL_GLOBAL_ONLY);
+ if (valuePtr == NULL) {
+ valuePtr = Tcl_NewObj();
+ }
+ Tcl_DecrRefCount(butPtr->textPtr);
+ butPtr->textPtr = valuePtr;
+ Tcl_IncrRefCount(butPtr->textPtr);
+ 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;
+}
+\f
+/*
+ *----------------------------------------------------------------------
+ *
+ * ButtonImageProc --
+ *
+ * This procedure is invoked by the image code whenever the manager
+ * for an image does something that affects the size or 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;
+ }
+ }
+}
+\f
+/*
+ *----------------------------------------------------------------------
+ *
+ * ButtonSelectImageProc --
+ *
+ * This procedure is invoked by the image code whenever the manager
+ * for an image does something that affects the size or 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;
+ }
+}
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