1 |
/* $Header$ */
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2 |
|
3 |
/*
|
4 |
* tkMenubutton.c --
|
5 |
*
|
6 |
* This module implements button-like widgets that are used
|
7 |
* to invoke pull-down menus.
|
8 |
*
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* Copyright (c) 1990-1994 The Regents of the University of California.
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* Copyright (c) 1994-1997 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
|
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* RCS: @(#) $Id: tkmenubutton.c,v 1.1.1.1 2001/06/13 05:05:54 dtashley Exp $
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*/
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18 |
#include "tkMenubutton.h"
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19 |
#include "tkPort.h"
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20 |
#include "default.h"
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22 |
/*
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* The following table defines the legal values for the -direction
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24 |
* option. It is used together with the "enum direction" declaration
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25 |
* in tkMenubutton.h.
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*/
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static char *directionStrings[] = {
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29 |
"above", "below", "flush", "left", "right", (char *) NULL
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30 |
};
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32 |
/*
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* The following table defines the legal values for the -state option.
|
34 |
* It is used together with the "enum state" declaration in tkMenubutton.h.
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*/
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static char *stateStrings[] = {
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"active", "disabled", "normal", (char *) NULL
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39 |
};
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/*
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* Information used for parsing configuration specs:
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*/
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45 |
static Tk_OptionSpec optionSpecs[] = {
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46 |
{TK_OPTION_BORDER, "-activebackground", "activeBackground", "Foreground",
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47 |
DEF_MENUBUTTON_ACTIVE_BG_COLOR, -1,
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48 |
Tk_Offset(TkMenuButton, activeBorder), 0,
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49 |
(ClientData) DEF_MENUBUTTON_ACTIVE_BG_MONO, 0},
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50 |
{TK_OPTION_COLOR, "-activeforeground", "activeForeground", "Background",
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51 |
DEF_MENUBUTTON_ACTIVE_FG_COLOR, -1,
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52 |
Tk_Offset(TkMenuButton, activeFg),
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53 |
0, (ClientData) DEF_MENUBUTTON_ACTIVE_FG_MONO, 0},
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54 |
{TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor",
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55 |
DEF_MENUBUTTON_ANCHOR, -1,
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56 |
Tk_Offset(TkMenuButton, anchor), 0, 0, 0},
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57 |
{TK_OPTION_BORDER, "-background", "background", "Background",
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58 |
DEF_MENUBUTTON_BG_COLOR, -1, Tk_Offset(TkMenuButton, normalBorder),
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59 |
0, (ClientData) DEF_MENUBUTTON_BG_MONO, 0},
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60 |
{TK_OPTION_SYNONYM, "-bd", (char *) NULL, (char *) NULL,
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61 |
(char *) NULL, 0, -1, 0, (ClientData) "-borderwidth", 0},
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62 |
{TK_OPTION_SYNONYM, "-bg", (char *) NULL, (char *) NULL,
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63 |
(char *) NULL, 0, -1, 0, (ClientData) "-background", 0},
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{TK_OPTION_BITMAP, "-bitmap", "bitmap", "Bitmap",
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65 |
DEF_MENUBUTTON_BITMAP, -1, Tk_Offset(TkMenuButton, bitmap),
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66 |
TK_OPTION_NULL_OK, 0, 0},
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{TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
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68 |
DEF_MENUBUTTON_BORDER_WIDTH, -1,
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69 |
Tk_Offset(TkMenuButton, borderWidth), 0, 0, 0},
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70 |
{TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
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71 |
DEF_MENUBUTTON_CURSOR, -1, Tk_Offset(TkMenuButton, cursor),
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72 |
TK_OPTION_NULL_OK, 0, 0},
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73 |
{TK_OPTION_STRING_TABLE, "-direction", "direction", "Direction",
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74 |
DEF_MENUBUTTON_DIRECTION, -1, Tk_Offset(TkMenuButton, direction),
|
75 |
0, (ClientData) directionStrings, 0},
|
76 |
{TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
|
77 |
"DisabledForeground", DEF_MENUBUTTON_DISABLED_FG_COLOR,
|
78 |
-1, Tk_Offset(TkMenuButton, disabledFg), TK_OPTION_NULL_OK,
|
79 |
(ClientData) DEF_MENUBUTTON_DISABLED_FG_MONO, 0},
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80 |
{TK_OPTION_SYNONYM, "-fg", "foreground", (char *) NULL,
|
81 |
(char *) NULL, 0, -1, 0, (ClientData) "-foreground", 0},
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82 |
{TK_OPTION_FONT, "-font", "font", "Font",
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83 |
DEF_MENUBUTTON_FONT, -1, Tk_Offset(TkMenuButton, tkfont), 0, 0, 0},
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84 |
{TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
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85 |
DEF_MENUBUTTON_FG, -1, Tk_Offset(TkMenuButton, normalFg), 0, 0, 0},
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86 |
{TK_OPTION_STRING, "-height", "height", "Height",
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87 |
DEF_MENUBUTTON_HEIGHT, -1, Tk_Offset(TkMenuButton, heightString),
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88 |
0, 0, 0},
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89 |
{TK_OPTION_COLOR, "-highlightbackground", "highlightBackground",
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90 |
"HighlightBackground", DEF_MENUBUTTON_HIGHLIGHT_BG_COLOR,
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91 |
-1, Tk_Offset(TkMenuButton, highlightBgColorPtr), 0, 0, 0},
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92 |
{TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
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93 |
DEF_MENUBUTTON_HIGHLIGHT, -1,
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94 |
Tk_Offset(TkMenuButton, highlightColorPtr), 0, 0, 0},
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95 |
{TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
|
96 |
"HighlightThickness", DEF_MENUBUTTON_HIGHLIGHT_WIDTH,
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97 |
-1, Tk_Offset(TkMenuButton, highlightWidth), 0, 0, 0},
|
98 |
{TK_OPTION_STRING, "-image", "image", "Image",
|
99 |
DEF_MENUBUTTON_IMAGE, -1, Tk_Offset(TkMenuButton, imageString),
|
100 |
TK_OPTION_NULL_OK, 0, 0},
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101 |
{TK_OPTION_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn",
|
102 |
DEF_MENUBUTTON_INDICATOR, -1, Tk_Offset(TkMenuButton, indicatorOn),
|
103 |
0, 0, 0},
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104 |
{TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
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105 |
DEF_BUTTON_JUSTIFY, -1, Tk_Offset(TkMenuButton, justify), 0, 0, 0},
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106 |
{TK_OPTION_STRING, "-menu", "menu", "Menu",
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107 |
DEF_MENUBUTTON_MENU, -1, Tk_Offset(TkMenuButton, menuName),
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108 |
TK_OPTION_NULL_OK, 0, 0},
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109 |
{TK_OPTION_PIXELS, "-padx", "padX", "Pad",
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110 |
DEF_MENUBUTTON_PADX, -1, Tk_Offset(TkMenuButton, padX),
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111 |
0, 0, 0},
|
112 |
{TK_OPTION_PIXELS, "-pady", "padY", "Pad",
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113 |
DEF_MENUBUTTON_PADY, -1, Tk_Offset(TkMenuButton, padY),
|
114 |
0, 0, 0},
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115 |
{TK_OPTION_RELIEF, "-relief", "relief", "Relief",
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116 |
DEF_MENUBUTTON_RELIEF, -1, Tk_Offset(TkMenuButton, relief),
|
117 |
0, 0, 0},
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118 |
{TK_OPTION_STRING_TABLE, "-state", "state", "State",
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119 |
DEF_MENUBUTTON_STATE, -1, Tk_Offset(TkMenuButton, state),
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120 |
0, (ClientData) stateStrings, 0},
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{TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
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DEF_MENUBUTTON_TAKE_FOCUS, -1,
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Tk_Offset(TkMenuButton, takeFocus), TK_OPTION_NULL_OK, 0, 0},
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{TK_OPTION_STRING, "-text", "text", "Text",
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125 |
DEF_MENUBUTTON_TEXT, -1, Tk_Offset(TkMenuButton, text), 0, 0, 0},
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{TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
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127 |
DEF_MENUBUTTON_TEXT_VARIABLE, -1,
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Tk_Offset(TkMenuButton, textVarName), TK_OPTION_NULL_OK, 0, 0},
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129 |
{TK_OPTION_INT, "-underline", "underline", "Underline",
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DEF_MENUBUTTON_UNDERLINE, -1, Tk_Offset(TkMenuButton, underline),
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131 |
0, 0, 0},
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132 |
{TK_OPTION_STRING, "-width", "width", "Width",
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133 |
DEF_MENUBUTTON_WIDTH, -1, Tk_Offset(TkMenuButton, widthString),
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134 |
0, 0, 0},
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{TK_OPTION_PIXELS, "-wraplength", "wrapLength", "WrapLength",
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DEF_MENUBUTTON_WRAP_LENGTH, -1, Tk_Offset(TkMenuButton, wrapLength),
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137 |
0, 0, 0},
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138 |
{TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL,
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(char *) NULL, 0, 0}
|
140 |
};
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141 |
|
142 |
/*
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143 |
* The following tables define the menubutton widget commands and map the
|
144 |
* indexes into the string tables into a single enumerated type used
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145 |
* to dispatch the scale widget command.
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146 |
*/
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147 |
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148 |
static char *commandNames[] = {
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149 |
"cget", "configure", (char *) NULL
|
150 |
};
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151 |
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152 |
enum command {
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153 |
COMMAND_CGET, COMMAND_CONFIGURE
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154 |
};
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155 |
|
156 |
/*
|
157 |
* Forward declarations for procedures defined later in this file:
|
158 |
*/
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159 |
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160 |
static void MenuButtonCmdDeletedProc _ANSI_ARGS_((
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161 |
ClientData clientData));
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162 |
static void MenuButtonEventProc _ANSI_ARGS_((ClientData clientData,
|
163 |
XEvent *eventPtr));
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164 |
static void MenuButtonImageProc _ANSI_ARGS_((ClientData clientData,
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165 |
int x, int y, int width, int height, int imgWidth,
|
166 |
int imgHeight));
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167 |
static char * MenuButtonTextVarProc _ANSI_ARGS_((
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168 |
ClientData clientData, Tcl_Interp *interp,
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169 |
char *name1, char *name2, int flags));
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170 |
static int MenuButtonWidgetObjCmd _ANSI_ARGS_((
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171 |
ClientData clientData, Tcl_Interp *interp,
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172 |
int objc, Tcl_Obj *CONST objv[]));
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173 |
static int ConfigureMenuButton _ANSI_ARGS_((Tcl_Interp *interp,
|
174 |
TkMenuButton *mbPtr, int objc,
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175 |
Tcl_Obj *CONST objv[]));
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176 |
static void DestroyMenuButton _ANSI_ARGS_((char *memPtr));
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177 |
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178 |
/*
|
179 |
*--------------------------------------------------------------
|
180 |
*
|
181 |
* Tk_MenubuttonObjCmd --
|
182 |
*
|
183 |
* This procedure is invoked to process the "button", "label",
|
184 |
* "radiobutton", and "checkbutton" Tcl commands. See the
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185 |
* user documentation for details on what it does.
|
186 |
*
|
187 |
* Results:
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188 |
* A standard Tcl result.
|
189 |
*
|
190 |
* Side effects:
|
191 |
* See the user documentation.
|
192 |
*
|
193 |
*--------------------------------------------------------------
|
194 |
*/
|
195 |
|
196 |
int
|
197 |
Tk_MenubuttonObjCmd(clientData, interp, objc, objv)
|
198 |
ClientData clientData; /* Either NULL or pointer to
|
199 |
* option table. */
|
200 |
Tcl_Interp *interp; /* Current interpreter. */
|
201 |
int objc; /* Number of arguments. */
|
202 |
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
203 |
{
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204 |
register TkMenuButton *mbPtr;
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205 |
Tk_OptionTable optionTable;
|
206 |
Tk_Window tkwin;
|
207 |
|
208 |
optionTable = (Tk_OptionTable) clientData;
|
209 |
if (optionTable == NULL) {
|
210 |
Tcl_CmdInfo info;
|
211 |
char *name;
|
212 |
|
213 |
/*
|
214 |
* We haven't created the option table for this widget class
|
215 |
* yet. Do it now and save the table as the clientData for
|
216 |
* the command, so we'll have access to it in future
|
217 |
* invocations of the command.
|
218 |
*/
|
219 |
|
220 |
optionTable = Tk_CreateOptionTable(interp, optionSpecs);
|
221 |
name = Tcl_GetString(objv[0]);
|
222 |
Tcl_GetCommandInfo(interp, name, &info);
|
223 |
info.objClientData = (ClientData) optionTable;
|
224 |
Tcl_SetCommandInfo(interp, name, &info);
|
225 |
}
|
226 |
|
227 |
if (objc < 2) {
|
228 |
Tcl_WrongNumArgs(interp, 1, objv, "pathName ?options?");
|
229 |
return TCL_ERROR;
|
230 |
}
|
231 |
|
232 |
/*
|
233 |
* Create the new window.
|
234 |
*/
|
235 |
|
236 |
tkwin = Tk_CreateWindowFromPath(interp,
|
237 |
Tk_MainWindow(interp), Tcl_GetString(objv[1]), (char *) NULL);
|
238 |
if (tkwin == NULL) {
|
239 |
return TCL_ERROR;
|
240 |
}
|
241 |
|
242 |
Tk_SetClass(tkwin, "Menubutton");
|
243 |
mbPtr = TkpCreateMenuButton(tkwin);
|
244 |
|
245 |
TkSetClassProcs(tkwin, &tkpMenubuttonClass, (ClientData) mbPtr);
|
246 |
|
247 |
/*
|
248 |
* Initialize the data structure for the button.
|
249 |
*/
|
250 |
|
251 |
mbPtr->tkwin = tkwin;
|
252 |
mbPtr->display = Tk_Display (tkwin);
|
253 |
mbPtr->interp = interp;
|
254 |
mbPtr->widgetCmd = Tcl_CreateObjCommand(interp,
|
255 |
Tk_PathName(mbPtr->tkwin), MenuButtonWidgetObjCmd,
|
256 |
(ClientData) mbPtr, MenuButtonCmdDeletedProc);
|
257 |
mbPtr->optionTable = optionTable;
|
258 |
mbPtr->menuName = NULL;
|
259 |
mbPtr->text = NULL;
|
260 |
mbPtr->underline = -1;
|
261 |
mbPtr->textVarName = NULL;
|
262 |
mbPtr->bitmap = None;
|
263 |
mbPtr->imageString = NULL;
|
264 |
mbPtr->image = NULL;
|
265 |
mbPtr->state = STATE_NORMAL;
|
266 |
mbPtr->normalBorder = NULL;
|
267 |
mbPtr->activeBorder = NULL;
|
268 |
mbPtr->borderWidth = 0;
|
269 |
mbPtr->relief = TK_RELIEF_FLAT;
|
270 |
mbPtr->highlightWidth = 0;
|
271 |
mbPtr->highlightBgColorPtr = NULL;
|
272 |
mbPtr->highlightColorPtr = NULL;
|
273 |
mbPtr->inset = 0;
|
274 |
mbPtr->tkfont = NULL;
|
275 |
mbPtr->normalFg = NULL;
|
276 |
mbPtr->activeFg = NULL;
|
277 |
mbPtr->disabledFg = NULL;
|
278 |
mbPtr->normalTextGC = None;
|
279 |
mbPtr->activeTextGC = None;
|
280 |
mbPtr->gray = None;
|
281 |
mbPtr->disabledGC = None;
|
282 |
mbPtr->leftBearing = 0;
|
283 |
mbPtr->rightBearing = 0;
|
284 |
mbPtr->widthString = NULL;
|
285 |
mbPtr->heightString = NULL;
|
286 |
mbPtr->width = 0;
|
287 |
mbPtr->width = 0;
|
288 |
mbPtr->wrapLength = 0;
|
289 |
mbPtr->padX = 0;
|
290 |
mbPtr->padY = 0;
|
291 |
mbPtr->anchor = TK_ANCHOR_CENTER;
|
292 |
mbPtr->justify = TK_JUSTIFY_CENTER;
|
293 |
mbPtr->textLayout = NULL;
|
294 |
mbPtr->indicatorOn = 0;
|
295 |
mbPtr->indicatorWidth = 0;
|
296 |
mbPtr->indicatorHeight = 0;
|
297 |
mbPtr->direction = DIRECTION_FLUSH;
|
298 |
mbPtr->cursor = None;
|
299 |
mbPtr->takeFocus = NULL;
|
300 |
mbPtr->flags = 0;
|
301 |
|
302 |
Tk_CreateEventHandler(mbPtr->tkwin,
|
303 |
ExposureMask|StructureNotifyMask|FocusChangeMask,
|
304 |
MenuButtonEventProc, (ClientData) mbPtr);
|
305 |
|
306 |
if (Tk_InitOptions(interp, (char *) mbPtr, optionTable, tkwin)
|
307 |
!= TCL_OK) {
|
308 |
Tk_DestroyWindow(mbPtr->tkwin);
|
309 |
return TCL_ERROR;
|
310 |
}
|
311 |
|
312 |
if (ConfigureMenuButton(interp, mbPtr, objc-2, objv+2) != TCL_OK) {
|
313 |
Tk_DestroyWindow(mbPtr->tkwin);
|
314 |
return TCL_ERROR;
|
315 |
}
|
316 |
|
317 |
Tcl_SetStringObj(Tcl_GetObjResult(interp), Tk_PathName(mbPtr->tkwin),
|
318 |
-1);
|
319 |
return TCL_OK;
|
320 |
}
|
321 |
|
322 |
/*
|
323 |
*--------------------------------------------------------------
|
324 |
*
|
325 |
* MenuButtonWidgetObjCmd --
|
326 |
*
|
327 |
* This procedure is invoked to process the Tcl command
|
328 |
* that corresponds to a widget managed by this module.
|
329 |
* See the user documentation for details on what it does.
|
330 |
*
|
331 |
* Results:
|
332 |
* A standard Tcl result.
|
333 |
*
|
334 |
* Side effects:
|
335 |
* See the user documentation.
|
336 |
*
|
337 |
*--------------------------------------------------------------
|
338 |
*/
|
339 |
|
340 |
static int
|
341 |
MenuButtonWidgetObjCmd(clientData, interp, objc, objv)
|
342 |
ClientData clientData; /* Information about button widget. */
|
343 |
Tcl_Interp *interp; /* Current interpreter. */
|
344 |
int objc; /* Number of arguments. */
|
345 |
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
346 |
{
|
347 |
register TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
348 |
int result, index;
|
349 |
Tcl_Obj *objPtr;
|
350 |
|
351 |
if (objc < 2) {
|
352 |
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
|
353 |
return TCL_ERROR;
|
354 |
}
|
355 |
result = Tcl_GetIndexFromObj(interp, objv[1],
|
356 |
commandNames, "option", 0, &index);
|
357 |
if (result != TCL_OK) {
|
358 |
return result;
|
359 |
}
|
360 |
Tcl_Preserve((ClientData) mbPtr);
|
361 |
|
362 |
switch (index) {
|
363 |
case COMMAND_CGET: {
|
364 |
if (objc != 3) {
|
365 |
Tcl_WrongNumArgs(interp, 1, objv, "cget option");
|
366 |
goto error;
|
367 |
}
|
368 |
|
369 |
objPtr = Tk_GetOptionValue(interp, (char *) mbPtr,
|
370 |
mbPtr->optionTable, objv[2], mbPtr->tkwin);
|
371 |
if (objPtr == NULL) {
|
372 |
goto error;
|
373 |
} else {
|
374 |
Tcl_SetObjResult(interp, objPtr);
|
375 |
}
|
376 |
break;
|
377 |
}
|
378 |
|
379 |
case COMMAND_CONFIGURE: {
|
380 |
if (objc <= 3) {
|
381 |
objPtr = Tk_GetOptionInfo(interp, (char *) mbPtr,
|
382 |
mbPtr->optionTable,
|
383 |
(objc == 3) ? objv[2] : (Tcl_Obj *) NULL,
|
384 |
mbPtr->tkwin);
|
385 |
if (objPtr == NULL) {
|
386 |
goto error;
|
387 |
} else {
|
388 |
Tcl_SetObjResult(interp, objPtr);
|
389 |
}
|
390 |
} else {
|
391 |
result = ConfigureMenuButton(interp, mbPtr, objc-2,
|
392 |
objv+2);
|
393 |
}
|
394 |
break;
|
395 |
}
|
396 |
}
|
397 |
Tcl_Release((ClientData) mbPtr);
|
398 |
return result;
|
399 |
|
400 |
error:
|
401 |
Tcl_Release((ClientData) mbPtr);
|
402 |
return TCL_ERROR;
|
403 |
}
|
404 |
|
405 |
/*
|
406 |
*----------------------------------------------------------------------
|
407 |
*
|
408 |
* DestroyMenuButton --
|
409 |
*
|
410 |
* This procedure is invoked to recycle all of the resources
|
411 |
* associated with a menubutton widget. It is invoked as a
|
412 |
* when-idle handler in order to make sure that there is no
|
413 |
* other use of the menubutton pending at the time of the deletion.
|
414 |
*
|
415 |
* Results:
|
416 |
* None.
|
417 |
*
|
418 |
* Side effects:
|
419 |
* Everything associated with the widget is freed up.
|
420 |
*
|
421 |
*----------------------------------------------------------------------
|
422 |
*/
|
423 |
|
424 |
static void
|
425 |
DestroyMenuButton(memPtr)
|
426 |
char *memPtr; /* Info about button widget. */
|
427 |
{
|
428 |
register TkMenuButton *mbPtr = (TkMenuButton *) memPtr;
|
429 |
TkpDestroyMenuButton(mbPtr);
|
430 |
|
431 |
if (mbPtr->flags & REDRAW_PENDING) {
|
432 |
Tcl_CancelIdleCall(TkpDisplayMenuButton, (ClientData) mbPtr);
|
433 |
}
|
434 |
|
435 |
/*
|
436 |
* Free up all the stuff that requires special handling, then
|
437 |
* let Tk_FreeOptions handle all the standard option-related
|
438 |
* stuff.
|
439 |
*/
|
440 |
|
441 |
Tcl_DeleteCommandFromToken(mbPtr->interp, mbPtr->widgetCmd);
|
442 |
if (mbPtr->textVarName != NULL) {
|
443 |
Tcl_UntraceVar(mbPtr->interp, mbPtr->textVarName,
|
444 |
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
445 |
MenuButtonTextVarProc, (ClientData) mbPtr);
|
446 |
}
|
447 |
if (mbPtr->image != NULL) {
|
448 |
Tk_FreeImage(mbPtr->image);
|
449 |
}
|
450 |
if (mbPtr->normalTextGC != None) {
|
451 |
Tk_FreeGC(mbPtr->display, mbPtr->normalTextGC);
|
452 |
}
|
453 |
if (mbPtr->activeTextGC != None) {
|
454 |
Tk_FreeGC(mbPtr->display, mbPtr->activeTextGC);
|
455 |
}
|
456 |
if (mbPtr->disabledGC != None) {
|
457 |
Tk_FreeGC(mbPtr->display, mbPtr->disabledGC);
|
458 |
}
|
459 |
if (mbPtr->gray != None) {
|
460 |
Tk_FreeBitmap(mbPtr->display, mbPtr->gray);
|
461 |
}
|
462 |
if (mbPtr->textLayout != NULL) {
|
463 |
Tk_FreeTextLayout(mbPtr->textLayout);
|
464 |
}
|
465 |
Tk_FreeConfigOptions((char *) mbPtr, mbPtr->optionTable,
|
466 |
mbPtr->tkwin);
|
467 |
mbPtr->tkwin = NULL;
|
468 |
Tcl_EventuallyFree((ClientData) mbPtr, TCL_DYNAMIC);
|
469 |
}
|
470 |
|
471 |
/*
|
472 |
*----------------------------------------------------------------------
|
473 |
*
|
474 |
* ConfigureMenuButton --
|
475 |
*
|
476 |
* This procedure is called to process an argv/argc list, plus
|
477 |
* the Tk option database, in order to configure (or
|
478 |
* reconfigure) a menubutton widget.
|
479 |
*
|
480 |
* Results:
|
481 |
* The return value is a standard Tcl result. If TCL_ERROR is
|
482 |
* returned, then the interp's result contains an error message.
|
483 |
*
|
484 |
* Side effects:
|
485 |
* Configuration information, such as text string, colors, font,
|
486 |
* etc. get set for mbPtr; old resources get freed, if there
|
487 |
* were any. The menubutton is redisplayed.
|
488 |
*
|
489 |
*----------------------------------------------------------------------
|
490 |
*/
|
491 |
|
492 |
static int
|
493 |
ConfigureMenuButton(interp, mbPtr, objc, objv)
|
494 |
Tcl_Interp *interp; /* Used for error reporting. */
|
495 |
register TkMenuButton *mbPtr;
|
496 |
/* Information about widget; may or may
|
497 |
* not already have values for some
|
498 |
* fields. */
|
499 |
int objc; /* Number of valid entries in objv. */
|
500 |
Tcl_Obj *CONST objv[]; /* Arguments. */
|
501 |
{
|
502 |
Tk_SavedOptions savedOptions;
|
503 |
Tcl_Obj *errorResult = NULL;
|
504 |
int error;
|
505 |
Tk_Image image;
|
506 |
|
507 |
/*
|
508 |
* Eliminate any existing trace on variables monitored by the
|
509 |
* menubutton.
|
510 |
*/
|
511 |
|
512 |
if (mbPtr->textVarName != NULL) {
|
513 |
Tcl_UntraceVar(interp, mbPtr->textVarName,
|
514 |
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
515 |
MenuButtonTextVarProc, (ClientData) mbPtr);
|
516 |
}
|
517 |
|
518 |
/*
|
519 |
* The following loop is potentially executed twice. During the
|
520 |
* first pass configuration options get set to their new values.
|
521 |
* If there is an error in this pass, we execute a second pass
|
522 |
* to restore all the options to their previous values.
|
523 |
*/
|
524 |
|
525 |
for (error = 0; error <= 1; error++) {
|
526 |
if (!error) {
|
527 |
/*
|
528 |
* First pass: set options to new values.
|
529 |
*/
|
530 |
|
531 |
if (Tk_SetOptions(interp, (char *) mbPtr,
|
532 |
mbPtr->optionTable, objc, objv,
|
533 |
mbPtr->tkwin, &savedOptions, (int *) NULL) != TCL_OK) {
|
534 |
continue;
|
535 |
}
|
536 |
} else {
|
537 |
/*
|
538 |
* Second pass: restore options to old values.
|
539 |
*/
|
540 |
|
541 |
errorResult = Tcl_GetObjResult(interp);
|
542 |
Tcl_IncrRefCount(errorResult);
|
543 |
Tk_RestoreSavedOptions(&savedOptions);
|
544 |
}
|
545 |
|
546 |
/*
|
547 |
* A few options need special processing, such as setting the
|
548 |
* background from a 3-D border, or filling in complicated
|
549 |
* defaults that couldn't be specified to Tk_SetOptions.
|
550 |
*/
|
551 |
|
552 |
if ((mbPtr->state == STATE_ACTIVE)
|
553 |
&& !Tk_StrictMotif(mbPtr->tkwin)) {
|
554 |
Tk_SetBackgroundFromBorder(mbPtr->tkwin, mbPtr->activeBorder);
|
555 |
} else {
|
556 |
Tk_SetBackgroundFromBorder(mbPtr->tkwin, mbPtr->normalBorder);
|
557 |
}
|
558 |
|
559 |
if (mbPtr->highlightWidth < 0) {
|
560 |
mbPtr->highlightWidth = 0;
|
561 |
}
|
562 |
|
563 |
if (mbPtr->padX < 0) {
|
564 |
mbPtr->padX = 0;
|
565 |
}
|
566 |
if (mbPtr->padY < 0) {
|
567 |
mbPtr->padY = 0;
|
568 |
}
|
569 |
|
570 |
/*
|
571 |
* Get the image for the widget, if there is one. Allocate the
|
572 |
* new image before freeing the old one, so that the reference
|
573 |
* count doesn't go to zero and cause image data to be discarded.
|
574 |
*/
|
575 |
|
576 |
if (mbPtr->imageString != NULL) {
|
577 |
image = Tk_GetImage(mbPtr->interp, mbPtr->tkwin,
|
578 |
mbPtr->imageString, MenuButtonImageProc,
|
579 |
(ClientData) mbPtr);
|
580 |
if (image == NULL) {
|
581 |
return TCL_ERROR;
|
582 |
}
|
583 |
} else {
|
584 |
image = NULL;
|
585 |
}
|
586 |
if (mbPtr->image != NULL) {
|
587 |
Tk_FreeImage(mbPtr->image);
|
588 |
}
|
589 |
mbPtr->image = image;
|
590 |
|
591 |
/*
|
592 |
* Recompute the geometry for the button.
|
593 |
*/
|
594 |
|
595 |
if ((mbPtr->bitmap != None) || (mbPtr->image != NULL)) {
|
596 |
if (Tk_GetPixels(interp, mbPtr->tkwin, mbPtr->widthString,
|
597 |
&mbPtr->width) != TCL_OK) {
|
598 |
widthError:
|
599 |
Tcl_AddErrorInfo(interp, "\n (processing -width option)");
|
600 |
continue;
|
601 |
}
|
602 |
if (Tk_GetPixels(interp, mbPtr->tkwin, mbPtr->heightString,
|
603 |
&mbPtr->height) != TCL_OK) {
|
604 |
heightError:
|
605 |
Tcl_AddErrorInfo(interp, "\n (processing -height option)");
|
606 |
continue;
|
607 |
}
|
608 |
} else {
|
609 |
if (Tcl_GetInt(interp, mbPtr->widthString, &mbPtr->width)
|
610 |
!= TCL_OK) {
|
611 |
goto widthError;
|
612 |
}
|
613 |
if (Tcl_GetInt(interp, mbPtr->heightString, &mbPtr->height)
|
614 |
!= TCL_OK) {
|
615 |
goto heightError;
|
616 |
}
|
617 |
}
|
618 |
break;
|
619 |
}
|
620 |
|
621 |
if (!error) {
|
622 |
Tk_FreeSavedOptions(&savedOptions);
|
623 |
}
|
624 |
|
625 |
if ((mbPtr->image == NULL) && (mbPtr->bitmap == None)
|
626 |
&& (mbPtr->textVarName != NULL)) {
|
627 |
|
628 |
/*
|
629 |
* The menubutton displays the value of a variable.
|
630 |
* Set up a trace to watch for any changes in it, create
|
631 |
* the variable if it doesn't exist, and fetch its
|
632 |
* current value.
|
633 |
*/
|
634 |
|
635 |
char *value;
|
636 |
|
637 |
value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY);
|
638 |
if (value == NULL) {
|
639 |
Tcl_SetVar(interp, mbPtr->textVarName, mbPtr->text,
|
640 |
TCL_GLOBAL_ONLY);
|
641 |
} else {
|
642 |
if (mbPtr->text != NULL) {
|
643 |
ckfree(mbPtr->text);
|
644 |
}
|
645 |
mbPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
646 |
strcpy(mbPtr->text, value);
|
647 |
}
|
648 |
Tcl_TraceVar(interp, mbPtr->textVarName,
|
649 |
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
650 |
MenuButtonTextVarProc, (ClientData) mbPtr);
|
651 |
}
|
652 |
|
653 |
TkMenuButtonWorldChanged((ClientData) mbPtr);
|
654 |
if (error) {
|
655 |
Tcl_SetObjResult(interp, errorResult);
|
656 |
Tcl_DecrRefCount(errorResult);
|
657 |
return TCL_ERROR;
|
658 |
} else {
|
659 |
return TCL_OK;
|
660 |
}
|
661 |
}
|
662 |
|
663 |
/*
|
664 |
*---------------------------------------------------------------------------
|
665 |
*
|
666 |
* TkMenuButtonWorldChanged --
|
667 |
*
|
668 |
* This procedure is called when the world has changed in some
|
669 |
* way and the widget needs to recompute all its graphics contexts
|
670 |
* and determine its new geometry.
|
671 |
*
|
672 |
* Results:
|
673 |
* None.
|
674 |
*
|
675 |
* Side effects:
|
676 |
* TkMenuButton will be relayed out and redisplayed.
|
677 |
*
|
678 |
*---------------------------------------------------------------------------
|
679 |
*/
|
680 |
|
681 |
void
|
682 |
TkMenuButtonWorldChanged(instanceData)
|
683 |
ClientData instanceData; /* Information about widget. */
|
684 |
{
|
685 |
XGCValues gcValues;
|
686 |
GC gc;
|
687 |
unsigned long mask;
|
688 |
TkMenuButton *mbPtr;
|
689 |
|
690 |
mbPtr = (TkMenuButton *) instanceData;
|
691 |
|
692 |
gcValues.font = Tk_FontId(mbPtr->tkfont);
|
693 |
gcValues.foreground = mbPtr->normalFg->pixel;
|
694 |
gcValues.background = Tk_3DBorderColor(mbPtr->normalBorder)->pixel;
|
695 |
|
696 |
/*
|
697 |
* Note: GraphicsExpose events are disabled in GC's because they're
|
698 |
* used to copy stuff from an off-screen pixmap onto the screen (we know
|
699 |
* that there's no problem with obscured areas).
|
700 |
*/
|
701 |
|
702 |
gcValues.graphics_exposures = False;
|
703 |
mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures;
|
704 |
gc = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
705 |
if (mbPtr->normalTextGC != None) {
|
706 |
Tk_FreeGC(mbPtr->display, mbPtr->normalTextGC);
|
707 |
}
|
708 |
mbPtr->normalTextGC = gc;
|
709 |
|
710 |
gcValues.font = Tk_FontId(mbPtr->tkfont);
|
711 |
gcValues.foreground = mbPtr->activeFg->pixel;
|
712 |
gcValues.background = Tk_3DBorderColor(mbPtr->activeBorder)->pixel;
|
713 |
mask = GCForeground | GCBackground | GCFont;
|
714 |
gc = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
715 |
if (mbPtr->activeTextGC != None) {
|
716 |
Tk_FreeGC(mbPtr->display, mbPtr->activeTextGC);
|
717 |
}
|
718 |
mbPtr->activeTextGC = gc;
|
719 |
|
720 |
gcValues.font = Tk_FontId(mbPtr->tkfont);
|
721 |
gcValues.background = Tk_3DBorderColor(mbPtr->normalBorder)->pixel;
|
722 |
if ((mbPtr->disabledFg != NULL) && (mbPtr->imageString == NULL)) {
|
723 |
gcValues.foreground = mbPtr->disabledFg->pixel;
|
724 |
mask = GCForeground | GCBackground | GCFont;
|
725 |
} else {
|
726 |
gcValues.foreground = gcValues.background;
|
727 |
mask = GCForeground;
|
728 |
if (mbPtr->gray == None) {
|
729 |
mbPtr->gray = Tk_GetBitmap(NULL, mbPtr->tkwin,
|
730 |
Tk_GetUid("gray50"));
|
731 |
}
|
732 |
if (mbPtr->gray != None) {
|
733 |
gcValues.fill_style = FillStippled;
|
734 |
gcValues.stipple = mbPtr->gray;
|
735 |
mask |= GCFillStyle | GCStipple;
|
736 |
}
|
737 |
}
|
738 |
gc = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
739 |
if (mbPtr->disabledGC != None) {
|
740 |
Tk_FreeGC(mbPtr->display, mbPtr->disabledGC);
|
741 |
}
|
742 |
mbPtr->disabledGC = gc;
|
743 |
|
744 |
TkpComputeMenuButtonGeometry(mbPtr);
|
745 |
|
746 |
/*
|
747 |
* Lastly, arrange for the button to be redisplayed.
|
748 |
*/
|
749 |
|
750 |
if (Tk_IsMapped(mbPtr->tkwin) && !(mbPtr->flags & REDRAW_PENDING)) {
|
751 |
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
752 |
mbPtr->flags |= REDRAW_PENDING;
|
753 |
}
|
754 |
}
|
755 |
|
756 |
/*
|
757 |
*--------------------------------------------------------------
|
758 |
*
|
759 |
* MenuButtonEventProc --
|
760 |
*
|
761 |
* This procedure is invoked by the Tk dispatcher for various
|
762 |
* events on buttons.
|
763 |
*
|
764 |
* Results:
|
765 |
* None.
|
766 |
*
|
767 |
* Side effects:
|
768 |
* When the window gets deleted, internal structures get
|
769 |
* cleaned up. When it gets exposed, it is redisplayed.
|
770 |
*
|
771 |
*--------------------------------------------------------------
|
772 |
*/
|
773 |
|
774 |
static void
|
775 |
MenuButtonEventProc(clientData, eventPtr)
|
776 |
ClientData clientData; /* Information about window. */
|
777 |
XEvent *eventPtr; /* Information about event. */
|
778 |
{
|
779 |
TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
780 |
if ((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0)) {
|
781 |
goto redraw;
|
782 |
} else if (eventPtr->type == ConfigureNotify) {
|
783 |
/*
|
784 |
* Must redraw after size changes, since layout could have changed
|
785 |
* and borders will need to be redrawn.
|
786 |
*/
|
787 |
|
788 |
goto redraw;
|
789 |
} else if (eventPtr->type == DestroyNotify) {
|
790 |
DestroyMenuButton((char *) mbPtr);
|
791 |
} else if (eventPtr->type == FocusIn) {
|
792 |
if (eventPtr->xfocus.detail != NotifyInferior) {
|
793 |
mbPtr->flags |= GOT_FOCUS;
|
794 |
if (mbPtr->highlightWidth > 0) {
|
795 |
goto redraw;
|
796 |
}
|
797 |
}
|
798 |
} else if (eventPtr->type == FocusOut) {
|
799 |
if (eventPtr->xfocus.detail != NotifyInferior) {
|
800 |
mbPtr->flags &= ~GOT_FOCUS;
|
801 |
if (mbPtr->highlightWidth > 0) {
|
802 |
goto redraw;
|
803 |
}
|
804 |
}
|
805 |
}
|
806 |
return;
|
807 |
|
808 |
redraw:
|
809 |
if ((mbPtr->tkwin != NULL) && !(mbPtr->flags & REDRAW_PENDING)) {
|
810 |
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
811 |
mbPtr->flags |= REDRAW_PENDING;
|
812 |
}
|
813 |
}
|
814 |
|
815 |
/*
|
816 |
*----------------------------------------------------------------------
|
817 |
*
|
818 |
* MenuButtonCmdDeletedProc --
|
819 |
*
|
820 |
* This procedure is invoked when a widget command is deleted. If
|
821 |
* the widget isn't already in the process of being destroyed,
|
822 |
* this command destroys it.
|
823 |
*
|
824 |
* Results:
|
825 |
* None.
|
826 |
*
|
827 |
* Side effects:
|
828 |
* The widget is destroyed.
|
829 |
*
|
830 |
*----------------------------------------------------------------------
|
831 |
*/
|
832 |
|
833 |
static void
|
834 |
MenuButtonCmdDeletedProc(clientData)
|
835 |
ClientData clientData; /* Pointer to widget record for widget. */
|
836 |
{
|
837 |
TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
838 |
Tk_Window tkwin = mbPtr->tkwin;
|
839 |
|
840 |
/*
|
841 |
* This procedure could be invoked either because the window was
|
842 |
* destroyed and the command was then deleted (in which case tkwin
|
843 |
* is NULL) or because the command was deleted, and then this procedure
|
844 |
* destroys the widget.
|
845 |
*/
|
846 |
|
847 |
if (tkwin != NULL) {
|
848 |
Tk_DestroyWindow(tkwin);
|
849 |
}
|
850 |
}
|
851 |
|
852 |
/*
|
853 |
*--------------------------------------------------------------
|
854 |
*
|
855 |
* MenuButtonTextVarProc --
|
856 |
*
|
857 |
* This procedure is invoked when someone changes the variable
|
858 |
* whose contents are to be displayed in a menu button.
|
859 |
*
|
860 |
* Results:
|
861 |
* NULL is always returned.
|
862 |
*
|
863 |
* Side effects:
|
864 |
* The text displayed in the menu button will change to match the
|
865 |
* variable.
|
866 |
*
|
867 |
*--------------------------------------------------------------
|
868 |
*/
|
869 |
|
870 |
/* ARGSUSED */
|
871 |
static char *
|
872 |
MenuButtonTextVarProc(clientData, interp, name1, name2, flags)
|
873 |
ClientData clientData; /* Information about button. */
|
874 |
Tcl_Interp *interp; /* Interpreter containing variable. */
|
875 |
char *name1; /* Name of variable. */
|
876 |
char *name2; /* Second part of variable name. */
|
877 |
int flags; /* Information about what happened. */
|
878 |
{
|
879 |
register TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
880 |
char *value;
|
881 |
|
882 |
/*
|
883 |
* If the variable is unset, then immediately recreate it unless
|
884 |
* the whole interpreter is going away.
|
885 |
*/
|
886 |
|
887 |
if (flags & TCL_TRACE_UNSETS) {
|
888 |
if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
|
889 |
Tcl_SetVar(interp, mbPtr->textVarName, mbPtr->text,
|
890 |
TCL_GLOBAL_ONLY);
|
891 |
Tcl_TraceVar(interp, mbPtr->textVarName,
|
892 |
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
893 |
MenuButtonTextVarProc, clientData);
|
894 |
}
|
895 |
return (char *) NULL;
|
896 |
}
|
897 |
|
898 |
value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY);
|
899 |
if (value == NULL) {
|
900 |
value = "";
|
901 |
}
|
902 |
if (mbPtr->text != NULL) {
|
903 |
ckfree(mbPtr->text);
|
904 |
}
|
905 |
mbPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
906 |
strcpy(mbPtr->text, value);
|
907 |
TkpComputeMenuButtonGeometry(mbPtr);
|
908 |
|
909 |
if ((mbPtr->tkwin != NULL) && Tk_IsMapped(mbPtr->tkwin)
|
910 |
&& !(mbPtr->flags & REDRAW_PENDING)) {
|
911 |
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
912 |
mbPtr->flags |= REDRAW_PENDING;
|
913 |
}
|
914 |
return (char *) NULL;
|
915 |
}
|
916 |
|
917 |
/*
|
918 |
*----------------------------------------------------------------------
|
919 |
*
|
920 |
* MenuButtonImageProc --
|
921 |
*
|
922 |
* This procedure is invoked by the image code whenever the manager
|
923 |
* for an image does something that affects the size of contents
|
924 |
* of an image displayed in a button.
|
925 |
*
|
926 |
* Results:
|
927 |
* None.
|
928 |
*
|
929 |
* Side effects:
|
930 |
* Arranges for the button to get redisplayed.
|
931 |
*
|
932 |
*----------------------------------------------------------------------
|
933 |
*/
|
934 |
|
935 |
static void
|
936 |
MenuButtonImageProc(clientData, x, y, width, height, imgWidth, imgHeight)
|
937 |
ClientData clientData; /* Pointer to widget record. */
|
938 |
int x, y; /* Upper left pixel (within image)
|
939 |
* that must be redisplayed. */
|
940 |
int width, height; /* Dimensions of area to redisplay
|
941 |
* (may be <= 0). */
|
942 |
int imgWidth, imgHeight; /* New dimensions of image. */
|
943 |
{
|
944 |
register TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
945 |
|
946 |
if (mbPtr->tkwin != NULL) {
|
947 |
TkpComputeMenuButtonGeometry(mbPtr);
|
948 |
if (Tk_IsMapped(mbPtr->tkwin) && !(mbPtr->flags & REDRAW_PENDING)) {
|
949 |
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
950 |
mbPtr->flags |= REDRAW_PENDING;
|
951 |
}
|
952 |
}
|
953 |
}
|
954 |
|
955 |
/* End of tkmenubutton.c */
|