/* * tkButton.c -- * * This module implements a collection of button-like widgets for the Tk * toolkit. The widgets implemented include buttons, checkbuttons, * radiobuttons, and labels. * * 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: tkButton.c,v 1.28.2.2 2010/03/12 13:02:36 nijtmans Exp $ */ #include "tkInt.h" #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 const 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 const char *defaultStrings[] = { "active", "disabled", "normal", 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 const char *stateStrings[] = { "active", "disabled", "normal", NULL }; /* * The following table defines the legal values for the -compound option. * It is used with the "enum compound" declaration in tkButton.h */ static const char *compoundStrings[] = { "bottom", "center", "left", "none", "right", "top", NULL }; char tkDefButtonBorderWidth[TCL_INTEGER_SPACE] = DEF_BUTTON_BORDER_WIDTH; /* * 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", NULL, NULL, NULL, 0, -1, 0, (ClientData) "-borderwidth", 0}, {TK_OPTION_SYNONYM, "-bg", NULL, NULL, 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", tkDefButtonBorderWidth, 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", NULL, 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, NULL, NULL, NULL, 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", NULL, NULL, NULL, 0, -1, 0, (ClientData) "-borderwidth", 0}, {TK_OPTION_SYNONYM, "-bg", NULL, NULL, 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", tkDefButtonBorderWidth, 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", NULL, 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, NULL, NULL, NULL, 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", NULL, NULL, NULL, 0, -1, 0, (ClientData) "-borderwidth", 0}, {TK_OPTION_SYNONYM, "-bg", NULL, NULL, 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", tkDefButtonBorderWidth, 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", NULL, 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_STRING, "-tristateimage", "tristateImage", "TristateImage", DEF_BUTTON_IMAGE, Tk_Offset(TkButton, tristateImagePtr), -1, TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_STRING, "-tristatevalue", "tristateValue", "TristateValue", DEF_BUTTON_TRISTATE_VALUE, Tk_Offset(TkButton, tristateValuePtr), -1, 0, 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, NULL, NULL, NULL, 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", NULL, NULL, NULL, 0, -1, 0, (ClientData) "-borderwidth", 0}, {TK_OPTION_SYNONYM, "-bg", NULL, NULL, 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", tkDefButtonBorderWidth, 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", NULL, 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_STRING, "-tristateimage", "tristateImage", "TristateImage", DEF_BUTTON_IMAGE, Tk_Offset(TkButton, tristateImagePtr), -1, TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_STRING, "-tristatevalue", "tristateValue", "TristateValue", DEF_BUTTON_TRISTATE_VALUE, Tk_Offset(TkButton, tristateValuePtr), -1, 0, 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, NULL, NULL, NULL, 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 * const 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", NULL}, {"cget", "configure", "flash", "invoke", NULL}, {"cget", "configure", "deselect", "flash", "invoke", "select", "toggle", NULL}, {"cget", "configure", "deselect", "flash", "invoke", "select", 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 functions defined later in this file: */ static void ButtonCmdDeletedProc(ClientData clientData); static int ButtonCreate(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], int type); static void ButtonEventProc(ClientData clientData, XEvent *eventPtr); static void ButtonImageProc(ClientData clientData, int x, int y, int width, int height, int imgWidth, int imgHeight); static void ButtonSelectImageProc(ClientData clientData, int x, int y, int width, int height, int imgWidth, int imgHeight); static void ButtonTristateImageProc(ClientData clientData, int x, int y, int width, int height, int imgWidth, int imgHeight); static char * ButtonTextVarProc(ClientData clientData, Tcl_Interp *interp, const char *name1, const char *name2, int flags); static char * ButtonVarProc(ClientData clientData, Tcl_Interp *interp, const char *name1, const char *name2, int flags); static int ButtonWidgetObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]); static int ConfigureButton(Tcl_Interp *interp, TkButton *butPtr, int objc, Tcl_Obj *const objv[]); static void DestroyButton(TkButton *butPtr); /* *-------------------------------------------------------------- * * Tk_ButtonCmd, Tk_CheckbuttonCmd, Tk_LabelCmd, Tk_RadiobuttonCmd -- * * These functions 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 functions are just wrappers; they * call ButtonCreate to do all of the real work. * *-------------------------------------------------------------- */ int Tk_ButtonObjCmd( 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 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 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 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); } /* *-------------------------------------------------------------- * * ButtonCreate -- * * This function 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 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]), 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->tristateImagePtr = NULL; butPtr->tristateImage = 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->stippleGC = 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->tristateValuePtr = 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; } /* *-------------------------------------------------------------- * * ButtonWidgetCmd -- * * This function 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 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] : 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: if (objc > 2) { Tcl_WrongNumArgs(interp, 1, objv, "flash"); goto error; } if (butPtr->state != STATE_DISABLED) { int i; 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; } /* *---------------------------------------------------------------------- * * DestroyButton -- * * This function 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( 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->tristateImage != NULL) { Tk_FreeImage(butPtr->tristateImage); } 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->stippleGC != None) { Tk_FreeGC(butPtr->display, butPtr->stippleGC); } 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); } /* *---------------------------------------------------------------------- * * ConfigureButton -- * * This function 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( 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, NULL) != TCL_OK) { continue; } } else { /* * Second pass: restore options to old values. */ errorResult = Tcl_GetObjResult(interp); Tcl_IncrRefCount(errorResult); Tk_RestoreSavedOptions(&savedOptions); } if ((butPtr->flags & BUTTON_DELETED)) { /* * Somehow button was deleted - just abort now. [Bug #824479] */ 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_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; butPtr->flags &= ~TRISTATED; if (valuePtr != NULL) { const char *value = Tcl_GetString(valuePtr); if (strcmp(value, Tcl_GetString(butPtr->onValuePtr)) == 0) { butPtr->flags |= SELECTED; } else if (strcmp(value, Tcl_GetString(butPtr->tristateValuePtr)) == 0) { butPtr->flags |= TRISTATED; /* * For checkbuttons if the tristate value is the * same as the offvalue then prefer off to tristate */ if (butPtr->offValuePtr && strcmp(value, Tcl_GetString(butPtr->offValuePtr)) == 0) { butPtr->flags &= ~TRISTATED; } } } 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; if (butPtr->tristateImagePtr != NULL) { image = Tk_GetImage(butPtr->interp, butPtr->tkwin, Tcl_GetString(butPtr->tristateImagePtr), ButtonTristateImageProc, (ClientData) butPtr); if (image == NULL) { continue; } } else { image = NULL; } if (butPtr->tristateImage != NULL) { Tk_FreeImage(butPtr->tristateImage); } butPtr->tristateImage = 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; } } /* *--------------------------------------------------------------------------- * * TkButtonWorldChanged -- * * This function 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( 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; } gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel; /* * Create the GC that can be used for stippling */ if (butPtr->stippleGC == None) { gcValues.foreground = gcValues.background; mask = GCForeground; 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; } butPtr->stippleGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues); } /* * Allocate the disabled graphics context, for drawing text in its * disabled state. */ mask = GCForeground | GCBackground | GCFont; if (butPtr->disabledFg != NULL) { gcValues.foreground = butPtr->disabledFg->pixel; } else { gcValues.foreground = gcValues.background; } 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 function 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 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; } } /* *---------------------------------------------------------------------- * * ButtonCmdDeletedProc -- * * This function 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) /* Pointer to widget record for widget. */ { TkButton *butPtr = (TkButton *) clientData; /* * This function could be invoked either because the window was destroyed * and the command was then deleted or because the command was deleted, * and then this function destroys the widget. The BUTTON_DELETED flag * distinguishes these cases. */ if (!(butPtr->flags & BUTTON_DELETED)) { Tk_DestroyWindow(butPtr->tkwin); } } /* *---------------------------------------------------------------------- * * TkInvokeButton -- * * This function is called to carry out the actions associated with a * button, such as invoking a Tcl command or setting a variable. This * function 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( 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; } /* *-------------------------------------------------------------- * * ButtonVarProc -- * * This function 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 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; butPtr->flags &= ~TRISTATED; 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 = Tcl_GetString(butPtr->tristateValuePtr); } else { value = Tcl_GetString(valuePtr); } if (strcmp(value, Tcl_GetString(butPtr->onValuePtr)) == 0) { if (butPtr->flags & SELECTED) { return NULL; } butPtr->flags |= SELECTED; butPtr->flags &= ~TRISTATED; } else if (butPtr->offValuePtr && strcmp(value, Tcl_GetString(butPtr->offValuePtr)) == 0) { if (!(butPtr->flags & (SELECTED | TRISTATED))) { return NULL; } butPtr->flags &= ~(SELECTED | TRISTATED); } else if (strcmp(value, Tcl_GetString(butPtr->tristateValuePtr)) == 0) { if (butPtr->flags & TRISTATED) { return NULL; } butPtr->flags |= TRISTATED; butPtr->flags &= ~SELECTED; } else if (butPtr->flags & (SELECTED | TRISTATED)) { butPtr->flags &= ~(SELECTED | TRISTATED); } else { return NULL; } redisplay: if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } return NULL; } /* *-------------------------------------------------------------- * * ButtonTextVarProc -- * * This function 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 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 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 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 NULL; } /* *---------------------------------------------------------------------- * * ButtonImageProc -- * * This function 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 clientData, /* Pointer to widget record. */ int x, int y, /* Upper left pixel (within image) that must * be redisplayed. */ int width, int height, /* Dimensions of area to redisplay (might be * <= 0). */ int imgWidth, int 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 function 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 clientData, /* Pointer to widget record. */ int x, int y, /* Upper left pixel (within image) that must * be redisplayed. */ int width, int height, /* Dimensions of area to redisplay (might be * <= 0). */ int imgWidth, int 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; } } /* *---------------------------------------------------------------------- * * ButtonTristateImageProc -- * * This function 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 ButtonTristateImageProc( ClientData clientData, /* Pointer to widget record. */ int x, int y, /* Upper left pixel (within image) that must * be redisplayed. */ int width, int height, /* Dimensions of area to redisplay (might be * <= 0). */ int imgWidth, int imgHeight)/* New dimensions of image. */ { register TkButton *butPtr = (TkButton *) clientData; /* * Don't recompute geometry: it's controlled by the primary image. */ if ((butPtr->flags & TRISTATED) && (butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr); butPtr->flags |= REDRAW_PENDING; } } /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */