diff options
Diffstat (limited to 'generic/tkMenubutton.c')
| -rw-r--r-- | generic/tkMenubutton.c | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/generic/tkMenubutton.c b/generic/tkMenubutton.c new file mode 100644 index 0000000..ca2070e --- /dev/null +++ b/generic/tkMenubutton.c @@ -0,0 +1,865 @@ +/* + * tkMenubutton.c -- + * + * This module implements button-like widgets that are used + * to invoke pull-down menus. + * + * Copyright (c) 1990-1994 The Regents of the University of California. + * Copyright (c) 1994-1997 Sun Microsystems, Inc. + * + * See the file "license.terms" for information on usage and redistribution + * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * + * SCCS: @(#) tkMenubutton.c 1.94 97/07/31 09:10:37 + */ + +#include "tkMenubutton.h" +#include "tkPort.h" +#include "default.h" + +/* + * Uids internal to menubuttons. + */ + +static Tk_Uid aboveUid = NULL; +static Tk_Uid belowUid = NULL; +static Tk_Uid leftUid = NULL; +static Tk_Uid rightUid = NULL; +static Tk_Uid flushUid = NULL; + +/* + * Information used for parsing configuration specs: + */ + +static Tk_ConfigSpec configSpecs[] = { + {TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground", + DEF_MENUBUTTON_ACTIVE_BG_COLOR, Tk_Offset(TkMenuButton, activeBorder), + TK_CONFIG_COLOR_ONLY}, + {TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground", + DEF_MENUBUTTON_ACTIVE_BG_MONO, Tk_Offset(TkMenuButton, activeBorder), + TK_CONFIG_MONO_ONLY}, + {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background", + DEF_MENUBUTTON_ACTIVE_FG_COLOR, Tk_Offset(TkMenuButton, activeFg), + TK_CONFIG_COLOR_ONLY}, + {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background", + DEF_MENUBUTTON_ACTIVE_FG_MONO, Tk_Offset(TkMenuButton, activeFg), + TK_CONFIG_MONO_ONLY}, + {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor", + DEF_MENUBUTTON_ANCHOR, Tk_Offset(TkMenuButton, anchor), 0}, + {TK_CONFIG_BORDER, "-background", "background", "Background", + DEF_MENUBUTTON_BG_COLOR, Tk_Offset(TkMenuButton, normalBorder), + TK_CONFIG_COLOR_ONLY}, + {TK_CONFIG_BORDER, "-background", "background", "Background", + DEF_MENUBUTTON_BG_MONO, Tk_Offset(TkMenuButton, normalBorder), + TK_CONFIG_MONO_ONLY}, + {TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL, + (char *) NULL, 0, 0}, + {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL, + (char *) NULL, 0, 0}, + {TK_CONFIG_BITMAP, "-bitmap", "bitmap", "Bitmap", + DEF_MENUBUTTON_BITMAP, Tk_Offset(TkMenuButton, bitmap), + TK_CONFIG_NULL_OK}, + {TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth", + DEF_MENUBUTTON_BORDER_WIDTH, Tk_Offset(TkMenuButton, borderWidth), 0}, + {TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor", + DEF_MENUBUTTON_CURSOR, Tk_Offset(TkMenuButton, cursor), + TK_CONFIG_NULL_OK}, + {TK_CONFIG_UID, "-direction", "direction", "Direction", + DEF_MENUBUTTON_DIRECTION, Tk_Offset(TkMenuButton, direction), + 0}, + {TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground", + "DisabledForeground", DEF_MENUBUTTON_DISABLED_FG_COLOR, + Tk_Offset(TkMenuButton, disabledFg), + TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK}, + {TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground", + "DisabledForeground", DEF_MENUBUTTON_DISABLED_FG_MONO, + Tk_Offset(TkMenuButton, disabledFg), + TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK}, + {TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL, + (char *) NULL, 0, 0}, + {TK_CONFIG_FONT, "-font", "font", "Font", + DEF_MENUBUTTON_FONT, Tk_Offset(TkMenuButton, tkfont), 0}, + {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground", + DEF_MENUBUTTON_FG, Tk_Offset(TkMenuButton, normalFg), 0}, + {TK_CONFIG_STRING, "-height", "height", "Height", + DEF_MENUBUTTON_HEIGHT, Tk_Offset(TkMenuButton, heightString), 0}, + {TK_CONFIG_COLOR, "-highlightbackground", "highlightBackground", + "HighlightBackground", DEF_MENUBUTTON_HIGHLIGHT_BG, + Tk_Offset(TkMenuButton, highlightBgColorPtr), 0}, + {TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor", + DEF_MENUBUTTON_HIGHLIGHT, Tk_Offset(TkMenuButton, highlightColorPtr), + 0}, + {TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness", + "HighlightThickness", DEF_MENUBUTTON_HIGHLIGHT_WIDTH, + Tk_Offset(TkMenuButton, highlightWidth), 0}, + {TK_CONFIG_STRING, "-image", "image", "Image", + DEF_MENUBUTTON_IMAGE, Tk_Offset(TkMenuButton, imageString), + TK_CONFIG_NULL_OK}, + {TK_CONFIG_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn", + DEF_MENUBUTTON_INDICATOR, Tk_Offset(TkMenuButton, indicatorOn), 0}, + {TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify", + DEF_MENUBUTTON_JUSTIFY, Tk_Offset(TkMenuButton, justify), 0}, + {TK_CONFIG_STRING, "-menu", "menu", "Menu", + DEF_MENUBUTTON_MENU, Tk_Offset(TkMenuButton, menuName), + TK_CONFIG_NULL_OK}, + {TK_CONFIG_PIXELS, "-padx", "padX", "Pad", + DEF_MENUBUTTON_PADX, Tk_Offset(TkMenuButton, padX), 0}, + {TK_CONFIG_PIXELS, "-pady", "padY", "Pad", + DEF_MENUBUTTON_PADY, Tk_Offset(TkMenuButton, padY), 0}, + {TK_CONFIG_RELIEF, "-relief", "relief", "Relief", + DEF_MENUBUTTON_RELIEF, Tk_Offset(TkMenuButton, relief), 0}, + {TK_CONFIG_UID, "-state", "state", "State", + DEF_MENUBUTTON_STATE, Tk_Offset(TkMenuButton, state), 0}, + {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus", + DEF_MENUBUTTON_TAKE_FOCUS, Tk_Offset(TkMenuButton, takeFocus), + TK_CONFIG_NULL_OK}, + {TK_CONFIG_STRING, "-text", "text", "Text", + DEF_MENUBUTTON_TEXT, Tk_Offset(TkMenuButton, text), 0}, + {TK_CONFIG_STRING, "-textvariable", "textVariable", "Variable", + DEF_MENUBUTTON_TEXT_VARIABLE, Tk_Offset(TkMenuButton, textVarName), + TK_CONFIG_NULL_OK}, + {TK_CONFIG_INT, "-underline", "underline", "Underline", + DEF_MENUBUTTON_UNDERLINE, Tk_Offset(TkMenuButton, underline), 0}, + {TK_CONFIG_STRING, "-width", "width", "Width", + DEF_MENUBUTTON_WIDTH, Tk_Offset(TkMenuButton, widthString), 0}, + {TK_CONFIG_PIXELS, "-wraplength", "wrapLength", "WrapLength", + DEF_MENUBUTTON_WRAP_LENGTH, Tk_Offset(TkMenuButton, wrapLength), 0}, + {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, + (char *) NULL, 0, 0} +}; + +/* + * Forward declarations for procedures defined later in this file: + */ + +static void MenuButtonCmdDeletedProc _ANSI_ARGS_(( + ClientData clientData)); +static void MenuButtonEventProc _ANSI_ARGS_((ClientData clientData, + XEvent *eventPtr)); +static void MenuButtonImageProc _ANSI_ARGS_((ClientData clientData, + int x, int y, int width, int height, int imgWidth, + int imgHeight)); +static char * MenuButtonTextVarProc _ANSI_ARGS_(( + ClientData clientData, Tcl_Interp *interp, + char *name1, char *name2, int flags)); +static int MenuButtonWidgetCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +static int ConfigureMenuButton _ANSI_ARGS_((Tcl_Interp *interp, + TkMenuButton *mbPtr, int argc, char **argv, + int flags)); +static void DestroyMenuButton _ANSI_ARGS_((char *memPtr)); + +/* + *-------------------------------------------------------------- + * + * Tk_MenubuttonCmd -- + * + * This procedure is invoked to process 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. + * + *-------------------------------------------------------------- + */ + +int +Tk_MenubuttonCmd(clientData, interp, argc, argv) + ClientData clientData; /* Main window associated with + * interpreter. */ + Tcl_Interp *interp; /* Current interpreter. */ + int argc; /* Number of arguments. */ + char **argv; /* Argument strings. */ +{ + register TkMenuButton *mbPtr; + Tk_Window tkwin = (Tk_Window) clientData; + Tk_Window new; + + if (argc < 2) { + Tcl_AppendResult(interp, "wrong # args: should be \"", + argv[0], " pathName ?options?\"", (char *) NULL); + return TCL_ERROR; + } + + /* + * Create the new window. + */ + + new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], (char *) NULL); + if (new == NULL) { + return TCL_ERROR; + } + + Tk_SetClass(new, "Menubutton"); + mbPtr = TkpCreateMenuButton(new); + + TkSetClassProcs(new, &tkpMenubuttonClass, (ClientData) mbPtr); + + /* + * Initialize the data structure for the button. + */ + + mbPtr->tkwin = new; + mbPtr->display = Tk_Display (new); + mbPtr->interp = interp; + mbPtr->widgetCmd = Tcl_CreateCommand(interp, Tk_PathName(mbPtr->tkwin), + MenuButtonWidgetCmd, (ClientData) mbPtr, MenuButtonCmdDeletedProc); + mbPtr->menuName = NULL; + mbPtr->text = NULL; + mbPtr->underline = -1; + mbPtr->textVarName = NULL; + mbPtr->bitmap = None; + mbPtr->imageString = NULL; + mbPtr->image = NULL; + mbPtr->state = tkNormalUid; + mbPtr->normalBorder = NULL; + mbPtr->activeBorder = NULL; + mbPtr->borderWidth = 0; + mbPtr->relief = TK_RELIEF_FLAT; + mbPtr->highlightWidth = 0; + mbPtr->highlightBgColorPtr = NULL; + mbPtr->highlightColorPtr = NULL; + mbPtr->inset = 0; + mbPtr->tkfont = NULL; + mbPtr->normalFg = NULL; + mbPtr->activeFg = NULL; + mbPtr->disabledFg = NULL; + mbPtr->normalTextGC = None; + mbPtr->activeTextGC = None; + mbPtr->gray = None; + mbPtr->disabledGC = None; + mbPtr->leftBearing = 0; + mbPtr->rightBearing = 0; + mbPtr->widthString = NULL; + mbPtr->heightString = NULL; + mbPtr->width = 0; + mbPtr->width = 0; + mbPtr->wrapLength = 0; + mbPtr->padX = 0; + mbPtr->padY = 0; + mbPtr->anchor = TK_ANCHOR_CENTER; + mbPtr->justify = TK_JUSTIFY_CENTER; + mbPtr->textLayout = NULL; + mbPtr->indicatorOn = 0; + mbPtr->indicatorWidth = 0; + mbPtr->indicatorHeight = 0; + mbPtr->cursor = None; + mbPtr->takeFocus = NULL; + mbPtr->flags = 0; + if (aboveUid == NULL) { + aboveUid = Tk_GetUid("above"); + belowUid = Tk_GetUid("below"); + leftUid = Tk_GetUid("left"); + rightUid = Tk_GetUid("right"); + flushUid = Tk_GetUid("flush"); + } + mbPtr->direction = flushUid; + + Tk_CreateEventHandler(mbPtr->tkwin, + ExposureMask|StructureNotifyMask|FocusChangeMask, + MenuButtonEventProc, (ClientData) mbPtr); + if (ConfigureMenuButton(interp, mbPtr, argc-2, argv+2, 0) != TCL_OK) { + Tk_DestroyWindow(mbPtr->tkwin); + return TCL_ERROR; + } + + interp->result = Tk_PathName(mbPtr->tkwin); + return TCL_OK; +} + +/* + *-------------------------------------------------------------- + * + * MenuButtonWidgetCmd -- + * + * This procedure is invoked to process the Tcl command + * that corresponds to a widget managed by this module. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * See the user documentation. + * + *-------------------------------------------------------------- + */ + +static int +MenuButtonWidgetCmd(clientData, interp, argc, argv) + ClientData clientData; /* Information about button widget. */ + Tcl_Interp *interp; /* Current interpreter. */ + int argc; /* Number of arguments. */ + char **argv; /* Argument strings. */ +{ + register TkMenuButton *mbPtr = (TkMenuButton *) clientData; + int result; + size_t length; + int c; + + if (argc < 2) { + Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], + " option ?arg arg ...?\"", (char *) NULL); + return TCL_ERROR; + } + Tcl_Preserve((ClientData) mbPtr); + c = argv[1][0]; + length = strlen(argv[1]); + if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0) + && (length >= 2)) { + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # args: should be \"", + argv[0], " cget option\"", + (char *) NULL); + result = TCL_ERROR; + } else { + result = Tk_ConfigureValue(interp, mbPtr->tkwin, configSpecs, + (char *) mbPtr, argv[2], 0); + } + } else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0) + && (length >= 2)) { + if (argc == 2) { + result = Tk_ConfigureInfo(interp, mbPtr->tkwin, configSpecs, + (char *) mbPtr, (char *) NULL, 0); + } else if (argc == 3) { + result = Tk_ConfigureInfo(interp, mbPtr->tkwin, configSpecs, + (char *) mbPtr, argv[2], 0); + } else { + result = ConfigureMenuButton(interp, mbPtr, argc-2, argv+2, + TK_CONFIG_ARGV_ONLY); + } + } else { + Tcl_AppendResult(interp, "bad option \"", argv[1], + "\": must be cget or configure", + (char *) NULL); + result = TCL_ERROR; + } + Tcl_Release((ClientData) mbPtr); + return result; +} + +/* + *---------------------------------------------------------------------- + * + * DestroyMenuButton -- + * + * This procedure is invoked to recycle all of the resources + * associated with a button widget. It is invoked as a + * when-idle handler in order to make sure that there is no + * other use of the button pending at the time of the deletion. + * + * Results: + * None. + * + * Side effects: + * Everything associated with the widget is freed up. + * + *---------------------------------------------------------------------- + */ + +static void +DestroyMenuButton(memPtr) + char *memPtr; /* Info about button widget. */ +{ + register TkMenuButton *mbPtr = (TkMenuButton *) memPtr; + + /* + * Free up all the stuff that requires special handling, then + * let Tk_FreeOptions handle all the standard option-related + * stuff. + */ + + if (mbPtr->textVarName != NULL) { + Tcl_UntraceVar(mbPtr->interp, mbPtr->textVarName, + TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, + MenuButtonTextVarProc, (ClientData) mbPtr); + } + if (mbPtr->image != NULL) { + Tk_FreeImage(mbPtr->image); + } + if (mbPtr->normalTextGC != None) { + Tk_FreeGC(mbPtr->display, mbPtr->normalTextGC); + } + if (mbPtr->activeTextGC != None) { + Tk_FreeGC(mbPtr->display, mbPtr->activeTextGC); + } + if (mbPtr->gray != None) { + Tk_FreeBitmap(mbPtr->display, mbPtr->gray); + } + if (mbPtr->disabledGC != None) { + Tk_FreeGC(mbPtr->display, mbPtr->disabledGC); + } + Tk_FreeTextLayout(mbPtr->textLayout); + Tk_FreeOptions(configSpecs, (char *) mbPtr, mbPtr->display, 0); + ckfree((char *) mbPtr); +} + +/* + *---------------------------------------------------------------------- + * + * ConfigureMenuButton -- + * + * This procedure is called to process an argv/argc list, plus + * the Tk option database, in order to configure (or + * reconfigure) a menubutton widget. + * + * Results: + * The return value is a standard Tcl result. If TCL_ERROR is + * returned, then interp->result contains an error message. + * + * Side effects: + * Configuration information, such as text string, colors, font, + * etc. get set for mbPtr; old resources get freed, if there + * were any. The menubutton is redisplayed. + * + *---------------------------------------------------------------------- + */ + +static int +ConfigureMenuButton(interp, mbPtr, argc, argv, flags) + Tcl_Interp *interp; /* Used for error reporting. */ + register TkMenuButton *mbPtr; /* Information about widget; may or may + * not already have values for some fields. */ + int argc; /* Number of valid entries in argv. */ + char **argv; /* Arguments. */ + int flags; /* Flags to pass to Tk_ConfigureWidget. */ +{ + 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; + + value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY); + if (value == NULL) { + Tcl_SetVar(interp, mbPtr->textVarName, mbPtr->text, + TCL_GLOBAL_ONLY); + } 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)) { + Tcl_SetVar(interp, mbPtr->textVarName, mbPtr->text, + TCL_GLOBAL_ONLY); + Tcl_TraceVar(interp, mbPtr->textVarName, + TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, + MenuButtonTextVarProc, clientData); + } + return (char *) NULL; + } + + value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY); + 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; + } + } +} |