907 lines
28 KiB
C
907 lines
28 KiB
C
/*
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* tkMenubutton.c --
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*
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* This module implements button-like widgets that are used
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* to invoke pull-down menus.
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*
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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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* SCCS: @(#) tkMenubutton.c 1.94 97/07/31 09:10:37
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*/
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#include "tkMenubutton.h"
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#include "tkPort.h"
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#include "default.h"
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#ifdef BGLK_CODE
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# define STk_tcl_getvar SCM_tcl_getvar
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# define STk_tcl_setvar SCM_tcl_setvar
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#endif
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/*
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* Uids internal to menubuttons.
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*/
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static Tk_Uid aboveUid = NULL;
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static Tk_Uid belowUid = NULL;
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static Tk_Uid leftUid = NULL;
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static Tk_Uid rightUid = NULL;
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static Tk_Uid flushUid = NULL;
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/*
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* Information used for parsing configuration specs:
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*/
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static Tk_ConfigSpec configSpecs[] = {
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{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
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DEF_MENUBUTTON_ACTIVE_BG_COLOR, Tk_Offset(TkMenuButton, activeBorder),
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TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
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DEF_MENUBUTTON_ACTIVE_BG_MONO, Tk_Offset(TkMenuButton, activeBorder),
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TK_CONFIG_MONO_ONLY},
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{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
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DEF_MENUBUTTON_ACTIVE_FG_COLOR, Tk_Offset(TkMenuButton, activeFg),
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TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
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DEF_MENUBUTTON_ACTIVE_FG_MONO, Tk_Offset(TkMenuButton, activeFg),
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TK_CONFIG_MONO_ONLY},
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{TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
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DEF_MENUBUTTON_ANCHOR, Tk_Offset(TkMenuButton, anchor), 0},
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{TK_CONFIG_BORDER, "-background", "background", "Background",
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DEF_MENUBUTTON_BG_COLOR, Tk_Offset(TkMenuButton, normalBorder),
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TK_CONFIG_COLOR_ONLY},
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{TK_CONFIG_BORDER, "-background", "background", "Background",
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DEF_MENUBUTTON_BG_MONO, Tk_Offset(TkMenuButton, normalBorder),
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TK_CONFIG_MONO_ONLY},
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{TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
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(char *) NULL, 0, 0},
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{TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
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(char *) NULL, 0, 0},
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{TK_CONFIG_BITMAP, "-bitmap", "bitmap", "Bitmap",
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DEF_MENUBUTTON_BITMAP, Tk_Offset(TkMenuButton, bitmap),
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TK_CONFIG_NULL_OK},
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{TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
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DEF_MENUBUTTON_BORDER_WIDTH, Tk_Offset(TkMenuButton, borderWidth), 0},
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{TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
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DEF_MENUBUTTON_CURSOR, Tk_Offset(TkMenuButton, cursor),
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TK_CONFIG_NULL_OK},
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{TK_CONFIG_UID, "-direction", "direction", "Direction",
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DEF_MENUBUTTON_DIRECTION, Tk_Offset(TkMenuButton, direction),
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0},
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{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
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"DisabledForeground", DEF_MENUBUTTON_DISABLED_FG_COLOR,
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Tk_Offset(TkMenuButton, disabledFg),
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TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
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{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
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"DisabledForeground", DEF_MENUBUTTON_DISABLED_FG_MONO,
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Tk_Offset(TkMenuButton, disabledFg),
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TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
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#ifdef STk_CODE
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{TK_CONFIG_ENV, "-environment", "environment", "Environment",
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DEF_MENUBUTTON_ENV, Tk_Offset(TkMenuButton, env),
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0},
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#endif
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{TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL,
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(char *) NULL, 0, 0},
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{TK_CONFIG_FONT, "-font", "font", "Font",
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DEF_MENUBUTTON_FONT, Tk_Offset(TkMenuButton, tkfont), 0},
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{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
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DEF_MENUBUTTON_FG, Tk_Offset(TkMenuButton, normalFg), 0},
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{TK_CONFIG_STRING, "-height", "height", "Height",
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DEF_MENUBUTTON_HEIGHT, Tk_Offset(TkMenuButton, heightString), 0},
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{TK_CONFIG_COLOR, "-highlightbackground", "highlightBackground",
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"HighlightBackground", DEF_MENUBUTTON_HIGHLIGHT_BG,
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Tk_Offset(TkMenuButton, highlightBgColorPtr), 0},
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{TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
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DEF_MENUBUTTON_HIGHLIGHT, Tk_Offset(TkMenuButton, highlightColorPtr),
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0},
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{TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
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"HighlightThickness", DEF_MENUBUTTON_HIGHLIGHT_WIDTH,
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Tk_Offset(TkMenuButton, highlightWidth), 0},
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#ifdef SCM_CODE
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{TK_CONFIG_IMAGE, "-image", "image", "Image",
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#else
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{TK_CONFIG_STRING, "-image", "image", "Image",
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#endif
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DEF_MENUBUTTON_IMAGE, Tk_Offset(TkMenuButton, imageString),
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TK_CONFIG_NULL_OK},
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{TK_CONFIG_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn",
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DEF_MENUBUTTON_INDICATOR, Tk_Offset(TkMenuButton, indicatorOn), 0},
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{TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify",
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DEF_MENUBUTTON_JUSTIFY, Tk_Offset(TkMenuButton, justify), 0},
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#ifdef SCM_CODE
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{TK_CONFIG_MENU, "-menu", "menu", "Menu",
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#else
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{TK_CONFIG_STRING, "-menu", "menu", "Menu",
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#endif
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DEF_MENUBUTTON_MENU, Tk_Offset(TkMenuButton, menuName),
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TK_CONFIG_NULL_OK},
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{TK_CONFIG_PIXELS, "-padx", "padX", "Pad",
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DEF_MENUBUTTON_PADX, Tk_Offset(TkMenuButton, padX), 0},
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{TK_CONFIG_PIXELS, "-pady", "padY", "Pad",
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DEF_MENUBUTTON_PADY, Tk_Offset(TkMenuButton, padY), 0},
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{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
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DEF_MENUBUTTON_RELIEF, Tk_Offset(TkMenuButton, relief), 0},
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{TK_CONFIG_UID, "-state", "state", "State",
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DEF_MENUBUTTON_STATE, Tk_Offset(TkMenuButton, state), 0},
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{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
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DEF_MENUBUTTON_TAKE_FOCUS, Tk_Offset(TkMenuButton, takeFocus),
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TK_CONFIG_NULL_OK},
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{TK_CONFIG_STRING, "-text", "text", "Text",
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DEF_MENUBUTTON_TEXT, Tk_Offset(TkMenuButton, text), 0},
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{TK_CONFIG_STRING, "-textvariable", "textVariable", "Variable",
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DEF_MENUBUTTON_TEXT_VARIABLE, Tk_Offset(TkMenuButton, textVarName),
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TK_CONFIG_NULL_OK},
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{TK_CONFIG_INT, "-underline", "underline", "Underline",
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DEF_MENUBUTTON_UNDERLINE, Tk_Offset(TkMenuButton, underline), 0},
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{TK_CONFIG_STRING, "-width", "width", "Width",
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DEF_MENUBUTTON_WIDTH, Tk_Offset(TkMenuButton, widthString), 0},
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{TK_CONFIG_PIXELS, "-wraplength", "wrapLength", "WrapLength",
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DEF_MENUBUTTON_WRAP_LENGTH, Tk_Offset(TkMenuButton, wrapLength), 0},
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{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
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(char *) NULL, 0, 0}
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};
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/*
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* Forward declarations for procedures defined later in this file:
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*/
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static void MenuButtonCmdDeletedProc _ANSI_ARGS_((
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ClientData clientData));
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static void MenuButtonEventProc _ANSI_ARGS_((ClientData clientData,
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XEvent *eventPtr));
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static void MenuButtonImageProc _ANSI_ARGS_((ClientData clientData,
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int x, int y, int width, int height, int imgWidth,
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int imgHeight));
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static char * MenuButtonTextVarProc _ANSI_ARGS_((
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ClientData clientData, Tcl_Interp *interp,
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char *name1, char *name2, int flags));
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static int MenuButtonWidgetCmd _ANSI_ARGS_((ClientData clientData,
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Tcl_Interp *interp, int argc, char **argv));
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static int ConfigureMenuButton _ANSI_ARGS_((Tcl_Interp *interp,
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TkMenuButton *mbPtr, int argc, char **argv,
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int flags));
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static void DestroyMenuButton _ANSI_ARGS_((char *memPtr));
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/*
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*--------------------------------------------------------------
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*
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* Tk_MenubuttonCmd --
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*
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* This procedure is invoked to process the "button", "label",
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* "radiobutton", and "checkbutton" Tcl commands. See the
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* user documentation for details on what it does.
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*
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* Results:
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* A standard Tcl result.
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*
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* Side effects:
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* See the user documentation.
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*
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*--------------------------------------------------------------
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*/
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int
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Tk_MenubuttonCmd(clientData, interp, argc, argv)
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ClientData clientData; /* Main window associated with
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* interpreter. */
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Tcl_Interp *interp; /* Current interpreter. */
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int argc; /* Number of arguments. */
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char **argv; /* Argument strings. */
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{
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register TkMenuButton *mbPtr;
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Tk_Window tkwin = (Tk_Window) clientData;
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Tk_Window new;
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if (argc < 2) {
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Tcl_AppendResult(interp, "wrong # args: should be \"",
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argv[0], " pathName ?options?\"", (char *) NULL);
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return TCL_ERROR;
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}
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/*
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* Create the new window.
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*/
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new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], (char *) NULL);
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if (new == NULL) {
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return TCL_ERROR;
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}
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Tk_SetClass(new, "Menubutton");
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mbPtr = TkpCreateMenuButton(new);
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TkSetClassProcs(new, &tkpMenubuttonClass, (ClientData) mbPtr);
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/*
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* Initialize the data structure for the button.
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*/
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mbPtr->tkwin = new;
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mbPtr->display = Tk_Display (new);
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mbPtr->interp = interp;
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mbPtr->widgetCmd = Tcl_CreateCommand(interp, Tk_PathName(mbPtr->tkwin),
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MenuButtonWidgetCmd, (ClientData) mbPtr, MenuButtonCmdDeletedProc);
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mbPtr->menuName = NULL;
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mbPtr->text = NULL;
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mbPtr->underline = -1;
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mbPtr->textVarName = NULL;
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mbPtr->bitmap = None;
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mbPtr->imageString = NULL;
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mbPtr->image = NULL;
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mbPtr->state = tkNormalUid;
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mbPtr->normalBorder = NULL;
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mbPtr->activeBorder = NULL;
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mbPtr->borderWidth = 0;
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mbPtr->relief = TK_RELIEF_FLAT;
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mbPtr->highlightWidth = 0;
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mbPtr->highlightBgColorPtr = NULL;
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mbPtr->highlightColorPtr = NULL;
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mbPtr->inset = 0;
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mbPtr->tkfont = NULL;
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mbPtr->normalFg = NULL;
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mbPtr->activeFg = NULL;
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mbPtr->disabledFg = NULL;
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mbPtr->normalTextGC = None;
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mbPtr->activeTextGC = None;
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mbPtr->gray = None;
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mbPtr->disabledGC = None;
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mbPtr->leftBearing = 0;
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mbPtr->rightBearing = 0;
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mbPtr->widthString = NULL;
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mbPtr->heightString = NULL;
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mbPtr->width = 0;
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mbPtr->width = 0;
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mbPtr->wrapLength = 0;
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mbPtr->padX = 0;
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mbPtr->padY = 0;
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mbPtr->anchor = TK_ANCHOR_CENTER;
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mbPtr->justify = TK_JUSTIFY_CENTER;
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mbPtr->textLayout = NULL;
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mbPtr->indicatorOn = 0;
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mbPtr->indicatorWidth = 0;
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mbPtr->indicatorHeight = 0;
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mbPtr->cursor = None;
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mbPtr->takeFocus = NULL;
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mbPtr->flags = 0;
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#ifdef SCM_CODE
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mbPtr->env = NULL;
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#endif
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if (aboveUid == NULL) {
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aboveUid = Tk_GetUid("above");
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belowUid = Tk_GetUid("below");
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leftUid = Tk_GetUid("left");
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rightUid = Tk_GetUid("right");
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flushUid = Tk_GetUid("flush");
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}
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mbPtr->direction = flushUid;
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Tk_CreateEventHandler(mbPtr->tkwin,
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ExposureMask|StructureNotifyMask|FocusChangeMask,
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MenuButtonEventProc, (ClientData) mbPtr);
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if (ConfigureMenuButton(interp, mbPtr, argc-2, argv+2, 0) != TCL_OK) {
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Tk_DestroyWindow(mbPtr->tkwin);
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return TCL_ERROR;
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}
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#ifdef STk_CODE
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STk_sharp_dot_result(interp, Tk_PathName(mbPtr->tkwin));
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#else
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interp->result = Tk_PathName(mbPtr->tkwin);
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#endif
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return TCL_OK;
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}
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/*
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*--------------------------------------------------------------
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*
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* MenuButtonWidgetCmd --
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*
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* This procedure is invoked to process the Tcl command
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* that corresponds to a widget managed by this module.
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* See the user documentation for details on what it does.
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*
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* Results:
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* A standard Tcl result.
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*
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* Side effects:
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* See the user documentation.
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*
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*--------------------------------------------------------------
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*/
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static int
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MenuButtonWidgetCmd(clientData, interp, argc, argv)
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ClientData clientData; /* Information about button widget. */
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Tcl_Interp *interp; /* Current interpreter. */
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int argc; /* Number of arguments. */
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char **argv; /* Argument strings. */
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{
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register TkMenuButton *mbPtr = (TkMenuButton *) clientData;
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int result;
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size_t length;
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int c;
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if (argc < 2) {
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Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
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" option ?arg arg ...?\"", (char *) NULL);
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return TCL_ERROR;
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}
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Tcl_Preserve((ClientData) mbPtr);
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c = argv[1][0];
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length = strlen(argv[1]);
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if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0)
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&& (length >= 2)) {
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if (argc != 3) {
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Tcl_AppendResult(interp, "wrong # args: should be \"",
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argv[0], " cget option\"",
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(char *) NULL);
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result = TCL_ERROR;
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} else {
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result = Tk_ConfigureValue(interp, mbPtr->tkwin, configSpecs,
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(char *) mbPtr, argv[2], 0);
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}
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} else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0)
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&& (length >= 2)) {
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if (argc == 2) {
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result = Tk_ConfigureInfo(interp, mbPtr->tkwin, configSpecs,
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(char *) mbPtr, (char *) NULL, 0);
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} else if (argc == 3) {
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result = Tk_ConfigureInfo(interp, mbPtr->tkwin, configSpecs,
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(char *) mbPtr, argv[2], 0);
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} else {
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result = ConfigureMenuButton(interp, mbPtr, argc-2, argv+2,
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TK_CONFIG_ARGV_ONLY);
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}
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} else {
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Tcl_AppendResult(interp, "bad option \"", argv[1],
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"\": must be cget or configure",
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(char *) NULL);
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result = TCL_ERROR;
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}
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Tcl_Release((ClientData) mbPtr);
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return result;
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}
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/*
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*----------------------------------------------------------------------
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*
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* DestroyMenuButton --
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*
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* This procedure is invoked to recycle all of the resources
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* associated with a button widget. It is invoked as a
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* when-idle handler in order to make sure that there is no
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* other use of the button pending at the time of the deletion.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Everything associated with the widget is freed up.
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*
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*----------------------------------------------------------------------
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*/
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static void
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DestroyMenuButton(memPtr)
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char *memPtr; /* Info about button widget. */
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{
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register TkMenuButton *mbPtr = (TkMenuButton *) memPtr;
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/*
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* Free up all the stuff that requires special handling, then
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* let Tk_FreeOptions handle all the standard option-related
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* stuff.
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*/
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if (mbPtr->textVarName != NULL) {
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Tcl_UntraceVar(mbPtr->interp, mbPtr->textVarName,
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TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
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MenuButtonTextVarProc, (ClientData) mbPtr);
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}
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if (mbPtr->image != NULL) {
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Tk_FreeImage(mbPtr->image);
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}
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if (mbPtr->normalTextGC != None) {
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Tk_FreeGC(mbPtr->display, mbPtr->normalTextGC);
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}
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if (mbPtr->activeTextGC != None) {
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Tk_FreeGC(mbPtr->display, mbPtr->activeTextGC);
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}
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if (mbPtr->gray != None) {
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Tk_FreeBitmap(mbPtr->display, mbPtr->gray);
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}
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if (mbPtr->disabledGC != None) {
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Tk_FreeGC(mbPtr->display, mbPtr->disabledGC);
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}
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Tk_FreeTextLayout(mbPtr->textLayout);
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Tk_FreeOptions(configSpecs, (char *) mbPtr, mbPtr->display, 0);
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ckfree((char *) mbPtr);
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}
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/*
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*----------------------------------------------------------------------
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*
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* ConfigureMenuButton --
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*
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* This procedure is called to process an argv/argc list, plus
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* the Tk option database, in order to configure (or
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* reconfigure) a menubutton widget.
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*
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* Results:
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* The return value is a standard Tcl result. If TCL_ERROR is
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* returned, then interp->result contains an error message.
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*
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* Side effects:
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* Configuration information, such as text string, colors, font,
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* etc. get set for mbPtr; old resources get freed, if there
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* were any. The menubutton is redisplayed.
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*
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*----------------------------------------------------------------------
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*/
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static int
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ConfigureMenuButton(interp, mbPtr, argc, argv, flags)
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Tcl_Interp *interp; /* Used for error reporting. */
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register TkMenuButton *mbPtr; /* Information about widget; may or may
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* not already have values for some fields. */
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int argc; /* Number of valid entries in argv. */
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char **argv; /* Arguments. */
|
||
int flags; /* Flags to pass to Tk_ConfigureWidget. */
|
||
{
|
||
int result;
|
||
Tk_Image image;
|
||
|
||
/*
|
||
* Eliminate any existing trace on variables monitored by the menubutton.
|
||
*/
|
||
|
||
if (mbPtr->textVarName != NULL) {
|
||
Tcl_UntraceVar(interp, mbPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
MenuButtonTextVarProc, (ClientData) mbPtr);
|
||
}
|
||
|
||
result = Tk_ConfigureWidget(interp, mbPtr->tkwin, configSpecs,
|
||
argc, argv, (char *) mbPtr, flags);
|
||
if (result != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* A few options need special processing, such as setting the
|
||
* background from a 3-D border, or filling in complicated
|
||
* defaults that couldn't be specified to Tk_ConfigureWidget.
|
||
*/
|
||
|
||
if ((mbPtr->state == tkActiveUid) && !Tk_StrictMotif(mbPtr->tkwin)) {
|
||
Tk_SetBackgroundFromBorder(mbPtr->tkwin, mbPtr->activeBorder);
|
||
} else {
|
||
Tk_SetBackgroundFromBorder(mbPtr->tkwin, mbPtr->normalBorder);
|
||
if ((mbPtr->state != tkNormalUid) && (mbPtr->state != tkActiveUid)
|
||
&& (mbPtr->state != tkDisabledUid)) {
|
||
Tcl_AppendResult(interp, "bad state value \"", mbPtr->state,
|
||
"\": must be normal, active, or disabled", (char *) NULL);
|
||
mbPtr->state = tkNormalUid;
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
|
||
if ((mbPtr->direction != aboveUid) && (mbPtr->direction != belowUid)
|
||
&& (mbPtr->direction != leftUid) && (mbPtr->direction != rightUid)
|
||
&& (mbPtr->direction != flushUid)) {
|
||
Tcl_AppendResult(interp, "bad direction value \"", mbPtr->direction,
|
||
"\": must be above, below, left, right, or flush",
|
||
(char *) NULL);
|
||
mbPtr->direction = belowUid;
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (mbPtr->highlightWidth < 0) {
|
||
mbPtr->highlightWidth = 0;
|
||
}
|
||
|
||
if (mbPtr->padX < 0) {
|
||
mbPtr->padX = 0;
|
||
}
|
||
if (mbPtr->padY < 0) {
|
||
mbPtr->padY = 0;
|
||
}
|
||
|
||
/*
|
||
* Get the image for the widget, if there is one. Allocate the
|
||
* new image before freeing the old one, so that the reference
|
||
* count doesn't go to zero and cause image data to be discarded.
|
||
*/
|
||
|
||
if (mbPtr->imageString != NULL) {
|
||
image = Tk_GetImage(mbPtr->interp, mbPtr->tkwin,
|
||
mbPtr->imageString, MenuButtonImageProc, (ClientData) mbPtr);
|
||
if (image == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
image = NULL;
|
||
}
|
||
if (mbPtr->image != NULL) {
|
||
Tk_FreeImage(mbPtr->image);
|
||
}
|
||
mbPtr->image = image;
|
||
|
||
if ((mbPtr->image == NULL) && (mbPtr->bitmap == None)
|
||
&& (mbPtr->textVarName != NULL)) {
|
||
/*
|
||
* The menubutton displays a variable. Set up a trace to watch
|
||
* for any changes in it.
|
||
*/
|
||
|
||
char *value;
|
||
|
||
#ifdef SCM_CODE
|
||
value = STk_tcl_getvar(mbPtr->textVarName, mbPtr->env);
|
||
#else
|
||
value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY);
|
||
#endif
|
||
if (value == NULL) {
|
||
#ifdef SCM_CODE
|
||
STk_tcl_setvar(mbPtr->textVarName, mbPtr->text, 0, mbPtr->env);
|
||
#else
|
||
Tcl_SetVar(interp, mbPtr->textVarName, mbPtr->text,
|
||
TCL_GLOBAL_ONLY);
|
||
#endif
|
||
} else {
|
||
if (mbPtr->text != NULL) {
|
||
ckfree(mbPtr->text);
|
||
}
|
||
mbPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
||
strcpy(mbPtr->text, value);
|
||
}
|
||
Tcl_TraceVar(interp, mbPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
MenuButtonTextVarProc, (ClientData) mbPtr);
|
||
}
|
||
|
||
/*
|
||
* Recompute the geometry for the button.
|
||
*/
|
||
|
||
if ((mbPtr->bitmap != None) || (mbPtr->image != NULL)) {
|
||
if (Tk_GetPixels(interp, mbPtr->tkwin, mbPtr->widthString,
|
||
&mbPtr->width) != TCL_OK) {
|
||
widthError:
|
||
Tcl_AddErrorInfo(interp, "\n (processing -width option)");
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tk_GetPixels(interp, mbPtr->tkwin, mbPtr->heightString,
|
||
&mbPtr->height) != TCL_OK) {
|
||
heightError:
|
||
Tcl_AddErrorInfo(interp, "\n (processing -height option)");
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
if (Tcl_GetInt(interp, mbPtr->widthString, &mbPtr->width)
|
||
!= TCL_OK) {
|
||
goto widthError;
|
||
}
|
||
if (Tcl_GetInt(interp, mbPtr->heightString, &mbPtr->height)
|
||
!= TCL_OK) {
|
||
goto heightError;
|
||
}
|
||
}
|
||
TkMenuButtonWorldChanged((ClientData) mbPtr);
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*---------------------------------------------------------------------------
|
||
*
|
||
* TkMenuButtonWorldChanged --
|
||
*
|
||
* This procedure is called when the world has changed in some
|
||
* way and the widget needs to recompute all its graphics contexts
|
||
* and determine its new geometry.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* TkMenuButton will be relayed out and redisplayed.
|
||
*
|
||
*---------------------------------------------------------------------------
|
||
*/
|
||
|
||
void
|
||
TkMenuButtonWorldChanged(instanceData)
|
||
ClientData instanceData; /* Information about widget. */
|
||
{
|
||
XGCValues gcValues;
|
||
GC gc;
|
||
unsigned long mask;
|
||
TkMenuButton *mbPtr;
|
||
|
||
mbPtr = (TkMenuButton *) instanceData;
|
||
|
||
gcValues.font = Tk_FontId(mbPtr->tkfont);
|
||
gcValues.foreground = mbPtr->normalFg->pixel;
|
||
gcValues.background = Tk_3DBorderColor(mbPtr->normalBorder)->pixel;
|
||
|
||
/*
|
||
* Note: GraphicsExpose events are disabled in GC's because they're
|
||
* 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;
|
||
gc = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
||
if (mbPtr->normalTextGC != None) {
|
||
Tk_FreeGC(mbPtr->display, mbPtr->normalTextGC);
|
||
}
|
||
mbPtr->normalTextGC = gc;
|
||
|
||
gcValues.font = Tk_FontId(mbPtr->tkfont);
|
||
gcValues.foreground = mbPtr->activeFg->pixel;
|
||
gcValues.background = Tk_3DBorderColor(mbPtr->activeBorder)->pixel;
|
||
mask = GCForeground | GCBackground | GCFont;
|
||
gc = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
||
if (mbPtr->activeTextGC != None) {
|
||
Tk_FreeGC(mbPtr->display, mbPtr->activeTextGC);
|
||
}
|
||
mbPtr->activeTextGC = gc;
|
||
|
||
gcValues.font = Tk_FontId(mbPtr->tkfont);
|
||
gcValues.background = Tk_3DBorderColor(mbPtr->normalBorder)->pixel;
|
||
if ((mbPtr->disabledFg != NULL) && (mbPtr->imageString == NULL)) {
|
||
gcValues.foreground = mbPtr->disabledFg->pixel;
|
||
mask = GCForeground | GCBackground | GCFont;
|
||
} else {
|
||
gcValues.foreground = gcValues.background;
|
||
mask = GCForeground;
|
||
if (mbPtr->gray == None) {
|
||
mbPtr->gray = Tk_GetBitmap(NULL, mbPtr->tkwin,
|
||
Tk_GetUid("gray50"));
|
||
}
|
||
if (mbPtr->gray != None) {
|
||
gcValues.fill_style = FillStippled;
|
||
gcValues.stipple = mbPtr->gray;
|
||
mask |= GCFillStyle | GCStipple;
|
||
}
|
||
}
|
||
gc = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
||
if (mbPtr->disabledGC != None) {
|
||
Tk_FreeGC(mbPtr->display, mbPtr->disabledGC);
|
||
}
|
||
mbPtr->disabledGC = gc;
|
||
|
||
TkpComputeMenuButtonGeometry(mbPtr);
|
||
|
||
/*
|
||
* Lastly, arrange for the button to be redisplayed.
|
||
*/
|
||
|
||
if (Tk_IsMapped(mbPtr->tkwin) && !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
||
mbPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* MenuButtonEventProc --
|
||
*
|
||
* This procedure is invoked by the Tk dispatcher for various
|
||
* events on buttons.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* When the window gets deleted, internal structures get
|
||
* cleaned up. When it gets exposed, it is redisplayed.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
MenuButtonEventProc(clientData, eventPtr)
|
||
ClientData clientData; /* Information about window. */
|
||
XEvent *eventPtr; /* Information about event. */
|
||
{
|
||
TkMenuButton *mbPtr = (TkMenuButton *) 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) {
|
||
TkpDestroyMenuButton(mbPtr);
|
||
if (mbPtr->tkwin != NULL) {
|
||
mbPtr->tkwin = NULL;
|
||
Tcl_DeleteCommandFromToken(mbPtr->interp, mbPtr->widgetCmd);
|
||
}
|
||
if (mbPtr->flags & REDRAW_PENDING) {
|
||
Tcl_CancelIdleCall(TkpDisplayMenuButton, (ClientData) mbPtr);
|
||
}
|
||
Tcl_EventuallyFree((ClientData) mbPtr, DestroyMenuButton);
|
||
} else if (eventPtr->type == FocusIn) {
|
||
if (eventPtr->xfocus.detail != NotifyInferior) {
|
||
mbPtr->flags |= GOT_FOCUS;
|
||
if (mbPtr->highlightWidth > 0) {
|
||
goto redraw;
|
||
}
|
||
}
|
||
} else if (eventPtr->type == FocusOut) {
|
||
if (eventPtr->xfocus.detail != NotifyInferior) {
|
||
mbPtr->flags &= ~GOT_FOCUS;
|
||
if (mbPtr->highlightWidth > 0) {
|
||
goto redraw;
|
||
}
|
||
}
|
||
}
|
||
return;
|
||
|
||
redraw:
|
||
if ((mbPtr->tkwin != NULL) && !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
||
mbPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* MenuButtonCmdDeletedProc --
|
||
*
|
||
* This procedure is invoked when a widget command is deleted. If
|
||
* the widget isn't already in the process of being destroyed,
|
||
* this command destroys it.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The widget is destroyed.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
MenuButtonCmdDeletedProc(clientData)
|
||
ClientData clientData; /* Pointer to widget record for widget. */
|
||
{
|
||
TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
||
Tk_Window tkwin = mbPtr->tkwin;
|
||
|
||
/*
|
||
* This procedure could be invoked either because the window was
|
||
* destroyed and the command was then deleted (in which case tkwin
|
||
* is NULL) or because the command was deleted, and then this procedure
|
||
* destroys the widget.
|
||
*/
|
||
|
||
if (tkwin != NULL) {
|
||
mbPtr->tkwin = NULL;
|
||
Tk_DestroyWindow(tkwin);
|
||
}
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* MenuButtonTextVarProc --
|
||
*
|
||
* This procedure is invoked when someone changes the variable
|
||
* whose contents are to be displayed in a menu button.
|
||
*
|
||
* Results:
|
||
* NULL is always returned.
|
||
*
|
||
* Side effects:
|
||
* The text displayed in the menu button will change to match the
|
||
* variable.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
static char *
|
||
MenuButtonTextVarProc(clientData, interp, name1, name2, flags)
|
||
ClientData clientData; /* Information about button. */
|
||
Tcl_Interp *interp; /* Interpreter containing variable. */
|
||
char *name1; /* Name of variable. */
|
||
char *name2; /* Second part of variable name. */
|
||
int flags; /* Information about what happened. */
|
||
{
|
||
register TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
||
char *value;
|
||
|
||
/*
|
||
* If the variable is unset, then immediately recreate it unless
|
||
* the whole interpreter is going away.
|
||
*/
|
||
|
||
if (flags & TCL_TRACE_UNSETS) {
|
||
if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
|
||
#ifdef SCM_CODE
|
||
STk_tcl_setvar(mbPtr->textVarName, mbPtr->text, 0, mbPtr->env);
|
||
#else
|
||
Tcl_SetVar(interp, mbPtr->textVarName, mbPtr->text,
|
||
TCL_GLOBAL_ONLY);
|
||
#endif
|
||
Tcl_TraceVar(interp, mbPtr->textVarName,
|
||
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
|
||
MenuButtonTextVarProc, clientData);
|
||
}
|
||
return (char *) NULL;
|
||
}
|
||
|
||
#ifdef SCM_CODE
|
||
value = STk_tcl_getvar(mbPtr->textVarName, mbPtr->env);
|
||
#else
|
||
value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY);
|
||
#endif
|
||
if (value == NULL) {
|
||
value = "";
|
||
}
|
||
if (mbPtr->text != NULL) {
|
||
ckfree(mbPtr->text);
|
||
}
|
||
mbPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
||
strcpy(mbPtr->text, value);
|
||
TkpComputeMenuButtonGeometry(mbPtr);
|
||
|
||
if ((mbPtr->tkwin != NULL) && Tk_IsMapped(mbPtr->tkwin)
|
||
&& !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
||
mbPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
return (char *) NULL;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* MenuButtonImageProc --
|
||
*
|
||
* This procedure is invoked by the image code whenever the manager
|
||
* for an image does something that affects the size of contents
|
||
* of an image displayed in a button.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Arranges for the button to get redisplayed.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
MenuButtonImageProc(clientData, x, y, width, height, imgWidth, imgHeight)
|
||
ClientData clientData; /* Pointer to widget record. */
|
||
int x, y; /* Upper left pixel (within image)
|
||
* that must be redisplayed. */
|
||
int width, height; /* Dimensions of area to redisplay
|
||
* (may be <= 0). */
|
||
int imgWidth, imgHeight; /* New dimensions of image. */
|
||
{
|
||
register TkMenuButton *mbPtr = (TkMenuButton *) clientData;
|
||
|
||
if (mbPtr->tkwin != NULL) {
|
||
TkpComputeMenuButtonGeometry(mbPtr);
|
||
if (Tk_IsMapped(mbPtr->tkwin) && !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr);
|
||
mbPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
}
|