diff options
Diffstat (limited to 'generic/tkMenubutton.c')
| -rw-r--r-- | generic/tkMenubutton.c | 481 |
1 files changed, 240 insertions, 241 deletions
diff --git a/generic/tkMenubutton.c b/generic/tkMenubutton.c index 8292b32..b19c7aa 100644 --- a/generic/tkMenubutton.c +++ b/generic/tkMenubutton.c @@ -1,115 +1,114 @@ -/* +/* * tkMenubutton.c -- * - * This module implements button-like widgets that are used - * to invoke pull-down menus. + * 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. + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ +#include "tkInt.h" #include "tkMenubutton.h" -#include "tkPort.h" #include "default.h" /* - * The following table defines the legal values for the -direction - * option. It is used together with the "enum direction" declaration - * in tkMenubutton.h. + * The following table defines the legal values for the -direction option. It + * is used together with the "enum direction" declaration in tkMenubutton.h. */ static char *directionStrings[] = { - "above", "below", "flush", "left", "right", (char *) NULL + "above", "below", "flush", "left", "right", NULL }; /* - * The following table defines the legal values for the -state option. - * It is used together with the "enum state" declaration in tkMenubutton.h. + * The following table defines the legal values for the -state option. It is + * used together with the "enum state" declaration in tkMenubutton.h. */ static char *stateStrings[] = { - "active", "disabled", "normal", (char *) NULL + "active", "disabled", "normal", NULL }; /* - * The following table defines the legal values for the -compound option. - * It is used with the "enum compound" declaration in tkMenuButton.h + * The following table defines the legal values for the -compound option. It + * is used with the "enum compound" declaration in tkMenuButton.h */ static char *compoundStrings[] = { - "bottom", "center", "left", "none", "right", "top", (char *) NULL + "bottom", "center", "left", "none", "right", "top", NULL }; /* * Information used for parsing configuration specs: */ -static Tk_OptionSpec optionSpecs[] = { +static const Tk_OptionSpec optionSpecs[] = { {TK_OPTION_BORDER, "-activebackground", "activeBackground", "Foreground", - DEF_MENUBUTTON_ACTIVE_BG_COLOR, -1, - Tk_Offset(TkMenuButton, activeBorder), 0, - (ClientData) DEF_MENUBUTTON_ACTIVE_BG_MONO, 0}, + DEF_MENUBUTTON_ACTIVE_BG_COLOR, -1, + Tk_Offset(TkMenuButton, activeBorder), 0, + (ClientData) DEF_MENUBUTTON_ACTIVE_BG_MONO, 0}, {TK_OPTION_COLOR, "-activeforeground", "activeForeground", "Background", - DEF_MENUBUTTON_ACTIVE_FG_COLOR, -1, - Tk_Offset(TkMenuButton, activeFg), - 0, (ClientData) DEF_MENUBUTTON_ACTIVE_FG_MONO, 0}, + DEF_MENUBUTTON_ACTIVE_FG_COLOR, -1, + Tk_Offset(TkMenuButton, activeFg), + 0, (ClientData) DEF_MENUBUTTON_ACTIVE_FG_MONO, 0}, {TK_OPTION_ANCHOR, "-anchor", "anchor", "Anchor", - DEF_MENUBUTTON_ANCHOR, -1, - Tk_Offset(TkMenuButton, anchor), 0, 0, 0}, + DEF_MENUBUTTON_ANCHOR, -1, + Tk_Offset(TkMenuButton, anchor), 0, 0, 0}, {TK_OPTION_BORDER, "-background", "background", "Background", DEF_MENUBUTTON_BG_COLOR, -1, Tk_Offset(TkMenuButton, normalBorder), - 0, (ClientData) DEF_MENUBUTTON_BG_MONO, 0}, - {TK_OPTION_SYNONYM, "-bd", (char *) NULL, (char *) NULL, - (char *) NULL, 0, -1, 0, (ClientData) "-borderwidth", 0}, - {TK_OPTION_SYNONYM, "-bg", (char *) NULL, (char *) NULL, - (char *) NULL, 0, -1, 0, (ClientData) "-background", 0}, + 0, (ClientData) DEF_MENUBUTTON_BG_MONO, 0}, + {TK_OPTION_SYNONYM, "-bd", NULL, NULL, NULL, 0, -1, 0, + (ClientData) "-borderwidth", 0}, + {TK_OPTION_SYNONYM, "-bg", NULL, NULL, NULL, 0, -1, 0, + (ClientData) "-background", 0}, {TK_OPTION_BITMAP, "-bitmap", "bitmap", "Bitmap", DEF_MENUBUTTON_BITMAP, -1, Tk_Offset(TkMenuButton, bitmap), TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth", - DEF_MENUBUTTON_BORDER_WIDTH, -1, - Tk_Offset(TkMenuButton, borderWidth), 0, 0, 0}, + DEF_MENUBUTTON_BORDER_WIDTH, -1, + Tk_Offset(TkMenuButton, borderWidth), 0, 0, 0}, {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor", DEF_MENUBUTTON_CURSOR, -1, Tk_Offset(TkMenuButton, cursor), TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_STRING_TABLE, "-direction", "direction", "Direction", - DEF_MENUBUTTON_DIRECTION, -1, Tk_Offset(TkMenuButton, direction), + DEF_MENUBUTTON_DIRECTION, -1, Tk_Offset(TkMenuButton, direction), 0, (ClientData) directionStrings, 0}, {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground", "DisabledForeground", DEF_MENUBUTTON_DISABLED_FG_COLOR, -1, Tk_Offset(TkMenuButton, disabledFg), TK_OPTION_NULL_OK, (ClientData) DEF_MENUBUTTON_DISABLED_FG_MONO, 0}, - {TK_OPTION_SYNONYM, "-fg", "foreground", (char *) NULL, - (char *) NULL, 0, -1, 0, (ClientData) "-foreground", 0}, + {TK_OPTION_SYNONYM, "-fg", "foreground", NULL, NULL, 0, -1, 0, + (ClientData) "-foreground", 0}, {TK_OPTION_FONT, "-font", "font", "Font", DEF_MENUBUTTON_FONT, -1, Tk_Offset(TkMenuButton, tkfont), 0, 0, 0}, {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground", DEF_MENUBUTTON_FG, -1, Tk_Offset(TkMenuButton, normalFg), 0, 0, 0}, {TK_OPTION_STRING, "-height", "height", "Height", - DEF_MENUBUTTON_HEIGHT, -1, Tk_Offset(TkMenuButton, heightString), - 0, 0, 0}, + DEF_MENUBUTTON_HEIGHT, -1, Tk_Offset(TkMenuButton, heightString), + 0, 0, 0}, {TK_OPTION_COLOR, "-highlightbackground", "highlightBackground", "HighlightBackground", DEF_MENUBUTTON_HIGHLIGHT_BG_COLOR, -1, Tk_Offset(TkMenuButton, highlightBgColorPtr), 0, 0, 0}, {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor", - DEF_MENUBUTTON_HIGHLIGHT, -1, - Tk_Offset(TkMenuButton, highlightColorPtr), 0, 0, 0}, + DEF_MENUBUTTON_HIGHLIGHT, -1, + Tk_Offset(TkMenuButton, highlightColorPtr), 0, 0, 0}, {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness", "HighlightThickness", DEF_MENUBUTTON_HIGHLIGHT_WIDTH, -1, Tk_Offset(TkMenuButton, highlightWidth), 0, 0, 0}, {TK_OPTION_STRING, "-image", "image", "Image", - DEF_MENUBUTTON_IMAGE, -1, Tk_Offset(TkMenuButton, imageString), + DEF_MENUBUTTON_IMAGE, -1, Tk_Offset(TkMenuButton, imageString), TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn", DEF_MENUBUTTON_INDICATOR, -1, Tk_Offset(TkMenuButton, indicatorOn), - 0, 0, 0}, + 0, 0, 0}, {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify", - DEF_BUTTON_JUSTIFY, -1, Tk_Offset(TkMenuButton, justify), 0, 0, 0}, + DEF_MENUBUTTON_JUSTIFY, -1, Tk_Offset(TkMenuButton, justify), 0, 0, 0}, {TK_OPTION_STRING, "-menu", "menu", "Menu", - DEF_MENUBUTTON_MENU, -1, Tk_Offset(TkMenuButton, menuName), + DEF_MENUBUTTON_MENU, -1, Tk_Offset(TkMenuButton, menuName), TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_PIXELS, "-padx", "padX", "Pad", DEF_MENUBUTTON_PADX, -1, Tk_Offset(TkMenuButton, padX), @@ -118,43 +117,42 @@ static Tk_OptionSpec optionSpecs[] = { DEF_MENUBUTTON_PADY, -1, Tk_Offset(TkMenuButton, padY), 0, 0, 0}, {TK_OPTION_RELIEF, "-relief", "relief", "Relief", - DEF_MENUBUTTON_RELIEF, -1, Tk_Offset(TkMenuButton, relief), - 0, 0, 0}, + DEF_MENUBUTTON_RELIEF, -1, Tk_Offset(TkMenuButton, relief), + 0, 0, 0}, {TK_OPTION_STRING_TABLE, "-compound", "compound", "Compound", - DEF_BUTTON_COMPOUND, -1, Tk_Offset(TkMenuButton, compound), 0, - (ClientData) compoundStrings, 0}, + DEF_BUTTON_COMPOUND, -1, Tk_Offset(TkMenuButton, compound), 0, + (ClientData) compoundStrings, 0}, {TK_OPTION_STRING_TABLE, "-state", "state", "State", DEF_MENUBUTTON_STATE, -1, Tk_Offset(TkMenuButton, state), 0, (ClientData) stateStrings, 0}, {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus", - DEF_MENUBUTTON_TAKE_FOCUS, -1, - Tk_Offset(TkMenuButton, takeFocus), TK_OPTION_NULL_OK, 0, 0}, + DEF_MENUBUTTON_TAKE_FOCUS, -1, + Tk_Offset(TkMenuButton, takeFocus), TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_STRING, "-text", "text", "Text", DEF_MENUBUTTON_TEXT, -1, Tk_Offset(TkMenuButton, text), 0, 0, 0}, {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable", - DEF_MENUBUTTON_TEXT_VARIABLE, -1, - Tk_Offset(TkMenuButton, textVarName), TK_OPTION_NULL_OK, 0, 0}, + DEF_MENUBUTTON_TEXT_VARIABLE, -1, + Tk_Offset(TkMenuButton, textVarName), TK_OPTION_NULL_OK, 0, 0}, {TK_OPTION_INT, "-underline", "underline", "Underline", DEF_MENUBUTTON_UNDERLINE, -1, Tk_Offset(TkMenuButton, underline), - 0, 0, 0}, + 0, 0, 0}, {TK_OPTION_STRING, "-width", "width", "Width", - DEF_MENUBUTTON_WIDTH, -1, Tk_Offset(TkMenuButton, widthString), - 0, 0, 0}, + DEF_MENUBUTTON_WIDTH, -1, Tk_Offset(TkMenuButton, widthString), + 0, 0, 0}, {TK_OPTION_PIXELS, "-wraplength", "wrapLength", "WrapLength", DEF_MENUBUTTON_WRAP_LENGTH, -1, Tk_Offset(TkMenuButton, wrapLength), - 0, 0, 0}, - {TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL, - (char *) NULL, 0, 0} + 0, 0, 0}, + {TK_OPTION_END, NULL, NULL, NULL, NULL, 0, 0} }; /* - * The following tables define the menubutton widget commands and map the - * indexes into the string tables into a single enumerated type used - * to dispatch the scale widget command. + * The following tables define the menubutton widget commands and map the + * indexes into the string tables into a single enumerated type used to + * dispatch the scale widget command. */ static CONST char *commandNames[] = { - "cget", "configure", (char *) NULL + "cget", "configure", NULL }; enum command { @@ -162,35 +160,34 @@ enum command { }; /* - * Forward declarations for procedures defined later in this file: + * Forward declarations for functions 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, +static void MenuButtonCmdDeletedProc(ClientData clientData); +static void MenuButtonEventProc(ClientData clientData, + XEvent *eventPtr); +static void MenuButtonImageProc(ClientData clientData, int x, int y, int width, int height, int imgWidth, - int imgHeight)); -static char * MenuButtonTextVarProc _ANSI_ARGS_(( - ClientData clientData, Tcl_Interp *interp, - CONST char *name1, CONST char *name2, int flags)); -static int MenuButtonWidgetObjCmd _ANSI_ARGS_(( - ClientData clientData, Tcl_Interp *interp, - int objc, Tcl_Obj *CONST objv[])); -static int ConfigureMenuButton _ANSI_ARGS_((Tcl_Interp *interp, - TkMenuButton *mbPtr, int objc, - Tcl_Obj *CONST objv[])); -static void DestroyMenuButton _ANSI_ARGS_((char *memPtr)); + int imgHeight); +static char * MenuButtonTextVarProc(ClientData clientData, + Tcl_Interp *interp, CONST char *name1, + CONST char *name2, int flags); +static int MenuButtonWidgetObjCmd(ClientData clientData, + Tcl_Interp *interp, int objc, + Tcl_Obj *CONST objv[]); +static int ConfigureMenuButton(Tcl_Interp *interp, + TkMenuButton *mbPtr, int objc, + Tcl_Obj *CONST objv[]); +static void DestroyMenuButton(char *memPtr); /* *-------------------------------------------------------------- * * Tk_MenubuttonObjCmd -- * - * This procedure is invoked to process the "button", "label", - * "radiobutton", and "checkbutton" Tcl commands. See the - * user documentation for details on what it does. + * This function 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. @@ -202,11 +199,11 @@ static void DestroyMenuButton _ANSI_ARGS_((char *memPtr)); */ int -Tk_MenubuttonObjCmd(clientData, interp, objc, objv) - ClientData clientData; /* NULL. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tk_MenubuttonObjCmd( + ClientData clientData, /* NULL. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *CONST objv[]) /* Argument objects. */ { register TkMenuButton *mbPtr; Tk_OptionTable optionTable; @@ -222,14 +219,14 @@ Tk_MenubuttonObjCmd(clientData, interp, objc, objv) */ tkwin = Tk_CreateWindowFromPath(interp, Tk_MainWindow(interp), - Tcl_GetString(objv[1]), (char *) NULL); + Tcl_GetString(objv[1]), NULL); if (tkwin == NULL) { return TCL_ERROR; } /* - * Create the option table for this widget class. If it has already - * been created, the cached pointer will be returned. + * Create the option table for this widget class. If it has already been + * created, the cached pointer will be returned. */ optionTable = Tk_CreateOptionTable(interp, optionSpecs); @@ -246,9 +243,9 @@ Tk_MenubuttonObjCmd(clientData, interp, objc, objv) mbPtr->tkwin = tkwin; mbPtr->display = Tk_Display (tkwin); mbPtr->interp = interp; - mbPtr->widgetCmd = Tcl_CreateObjCommand(interp, - Tk_PathName(mbPtr->tkwin), MenuButtonWidgetObjCmd, - (ClientData) mbPtr, MenuButtonCmdDeletedProc); + mbPtr->widgetCmd = Tcl_CreateObjCommand(interp, + Tk_PathName(mbPtr->tkwin), MenuButtonWidgetObjCmd, + (ClientData) mbPtr, MenuButtonCmdDeletedProc); mbPtr->optionTable = optionTable; mbPtr->menuName = NULL; mbPtr->text = NULL; @@ -318,9 +315,9 @@ Tk_MenubuttonObjCmd(clientData, interp, objc, objv) * * MenuButtonWidgetObjCmd -- * - * 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. + * This function is invoked to process the Tcl command that corresponds + * to a widget managed by this module. See the user documentation for + * details on what it does. * * Results: * A standard Tcl result. @@ -332,66 +329,62 @@ Tk_MenubuttonObjCmd(clientData, interp, objc, objv) */ static int -MenuButtonWidgetObjCmd(clientData, interp, objc, objv) - ClientData clientData; /* Information about button widget. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +MenuButtonWidgetObjCmd( + ClientData clientData, /* Information about button widget. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *CONST objv[]) /* Argument objects. */ { register TkMenuButton *mbPtr = (TkMenuButton *) clientData; int result, index; Tcl_Obj *objPtr; if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?"); + Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?"); return TCL_ERROR; } - result = Tcl_GetIndexFromObj(interp, objv[1], - commandNames, "option", 0, &index); + result = Tcl_GetIndexFromObj(interp, objv[1], commandNames, "option", 0, + &index); if (result != TCL_OK) { - return result; + return result; } Tcl_Preserve((ClientData) mbPtr); switch (index) { - case COMMAND_CGET: { - if (objc != 3) { - Tcl_WrongNumArgs(interp, 1, objv, "cget option"); + case COMMAND_CGET: + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "cget option"); goto error; - } + } - objPtr = Tk_GetOptionValue(interp, (char *) mbPtr, - mbPtr->optionTable, objv[2], mbPtr->tkwin); - if (objPtr == NULL) { - goto error; - } else { - Tcl_SetObjResult(interp, objPtr); - } - break; + objPtr = Tk_GetOptionValue(interp, (char *) mbPtr, + mbPtr->optionTable, objv[2], mbPtr->tkwin); + if (objPtr == NULL) { + goto error; + } else { + Tcl_SetObjResult(interp, objPtr); } + break; - case COMMAND_CONFIGURE: { - if (objc <= 3) { - objPtr = Tk_GetOptionInfo(interp, (char *) mbPtr, - mbPtr->optionTable, - (objc == 3) ? objv[2] : (Tcl_Obj *) NULL, - mbPtr->tkwin); - if (objPtr == NULL) { - goto error; - } else { - Tcl_SetObjResult(interp, objPtr); - } + case COMMAND_CONFIGURE: + if (objc <= 3) { + objPtr = Tk_GetOptionInfo(interp, (char *) mbPtr, + mbPtr->optionTable, (objc == 3) ? objv[2] : NULL, + mbPtr->tkwin); + if (objPtr == NULL) { + goto error; } else { - result = ConfigureMenuButton(interp, mbPtr, objc-2, - objv+2); + Tcl_SetObjResult(interp, objPtr); } - break; + } else { + result = ConfigureMenuButton(interp, mbPtr, objc-2, objv+2); } + break; } Tcl_Release((ClientData) mbPtr); return result; - error: + error: Tcl_Release((ClientData) mbPtr); return TCL_ERROR; } @@ -401,10 +394,10 @@ MenuButtonWidgetObjCmd(clientData, interp, objc, objv) * * DestroyMenuButton -- * - * This procedure is invoked to recycle all of the resources - * associated with a menubutton widget. It is invoked as a - * when-idle handler in order to make sure that there is no - * other use of the menubutton pending at the time of the deletion. + * This function is invoked to recycle all of the resources associated + * with a menubutton widget. It is invoked as a when-idle handler in + * order to make sure that there is no other use of the menubutton + * pending at the time of the deletion. * * Results: * None. @@ -416,20 +409,19 @@ MenuButtonWidgetObjCmd(clientData, interp, objc, objv) */ static void -DestroyMenuButton(memPtr) - char *memPtr; /* Info about button widget. */ +DestroyMenuButton( + char *memPtr) /* Info about button widget. */ { register TkMenuButton *mbPtr = (TkMenuButton *) memPtr; TkpDestroyMenuButton(mbPtr); if (mbPtr->flags & REDRAW_PENDING) { - Tcl_CancelIdleCall(TkpDisplayMenuButton, (ClientData) mbPtr); + Tcl_CancelIdleCall(TkpDisplayMenuButton, (ClientData) mbPtr); } /* - * Free up all the stuff that requires special handling, then - * let Tk_FreeOptions handle all the standard option-related - * stuff. + * Free up all the stuff that requires special handling, then let + * Tk_FreeOptions handle all the standard option-related stuff. */ Tcl_DeleteCommandFromToken(mbPtr->interp, mbPtr->widgetCmd); @@ -457,7 +449,7 @@ DestroyMenuButton(memPtr) Tk_FreeBitmap(mbPtr->display, mbPtr->gray); } if (mbPtr->textLayout != NULL) { - Tk_FreeTextLayout(mbPtr->textLayout); + Tk_FreeTextLayout(mbPtr->textLayout); } Tk_FreeConfigOptions((char *) mbPtr, mbPtr->optionTable, mbPtr->tkwin); mbPtr->tkwin = NULL; @@ -469,31 +461,30 @@ DestroyMenuButton(memPtr) * * 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. + * This function 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 the interp's result contains an error message. + * The return value is a standard Tcl result. If TCL_ERROR is returned, + * then the interp's 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. + * 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, objc, objv) - Tcl_Interp *interp; /* Used for error reporting. */ - register TkMenuButton *mbPtr; - /* Information about widget; may or may - * not already have values for some - * fields. */ - int objc; /* Number of valid entries in objv. */ - Tcl_Obj *CONST objv[]; /* Arguments. */ +ConfigureMenuButton( + Tcl_Interp *interp, /* Used for error reporting. */ + register TkMenuButton *mbPtr, + /* Information about widget; may or may not + * already have values for some fields. */ + int objc, /* Number of valid entries in objv. */ + Tcl_Obj *CONST objv[]) /* Arguments. */ { Tk_SavedOptions savedOptions; Tcl_Obj *errorResult = NULL; @@ -501,21 +492,20 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) Tk_Image image; /* - * Eliminate any existing trace on variables monitored by the - * menubutton. + * Eliminate any existing trace on variables monitored by the menubutton. */ if (mbPtr->textVarName != NULL) { - Tcl_UntraceVar(interp, mbPtr->textVarName, + Tcl_UntraceVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, MenuButtonTextVarProc, (ClientData) mbPtr); } /* - * The following loop is potentially executed twice. During the - * first pass configuration options get set to their new values. - * If there is an error in this pass, we execute a second pass - * to restore all the options to their previous values. + * The following loop is potentially executed twice. During the first pass + * configuration options get set to their new values. If there is an error + * in this pass, we execute a second pass to restore all the options to + * their previous values. */ for (error = 0; error <= 1; error++) { @@ -526,7 +516,7 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) if (Tk_SetOptions(interp, (char *) mbPtr, mbPtr->optionTable, objc, objv, - mbPtr->tkwin, &savedOptions, (int *) NULL) != TCL_OK) { + mbPtr->tkwin, &savedOptions, NULL) != TCL_OK) { continue; } } else { @@ -541,8 +531,8 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) /* * A few options need special processing, such as setting the - * background from a 3-D border, or filling in complicated - * defaults that couldn't be specified to Tk_SetOptions. + * background from a 3-D border, or filling in complicated defaults + * that couldn't be specified to Tk_SetOptions. */ if ((mbPtr->state == STATE_ACTIVE) @@ -564,17 +554,17 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) } /* - * 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. + * 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, + mbPtr->imageString, MenuButtonImageProc, (ClientData) mbPtr); if (image == NULL) { - return TCL_ERROR; + return TCL_ERROR; } } else { image = NULL; @@ -590,32 +580,32 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) 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)"); + &mbPtr->width) != TCL_OK) { + widthError: + Tcl_AddErrorInfo(interp, "\n (processing -width option)"); continue; } if (Tk_GetPixels(interp, mbPtr->tkwin, mbPtr->heightString, &mbPtr->height) != TCL_OK) { - heightError: - Tcl_AddErrorInfo(interp, "\n (processing -height option)"); + heightError: + Tcl_AddErrorInfo(interp, "\n (processing -height option)"); continue; } } else { if (Tcl_GetInt(interp, mbPtr->widthString, &mbPtr->width) != TCL_OK) { - goto widthError; + goto widthError; } if (Tcl_GetInt(interp, mbPtr->heightString, &mbPtr->height) != TCL_OK) { - goto heightError; + goto heightError; } } break; } if (!error) { - Tk_FreeSavedOptions(&savedOptions); + Tk_FreeSavedOptions(&savedOptions); } if (mbPtr->textVarName != NULL) { @@ -646,10 +636,9 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) if (error) { Tcl_SetObjResult(interp, errorResult); Tcl_DecrRefCount(errorResult); - return TCL_ERROR; - } else { - return TCL_OK; + return TCL_ERROR; } + return TCL_OK; } /* @@ -657,22 +646,22 @@ ConfigureMenuButton(interp, mbPtr, objc, objv) * * 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. + * This function is called when the world has changed in some way and the + * widget needs to recompute all its graphics contexts and determine its + * new geometry. * * Results: - * None. + * None. * * Side effects: - * TkMenuButton will be relayed out and redisplayed. + * TkMenuButton will be relayed out and redisplayed. * *--------------------------------------------------------------------------- */ - + void -TkMenuButtonWorldChanged(instanceData) - ClientData instanceData; /* Information about widget. */ +TkMenuButtonWorldChanged( + ClientData instanceData) /* Information about widget. */ { XGCValues gcValues; GC gc; @@ -686,9 +675,9 @@ TkMenuButtonWorldChanged(instanceData) 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). + * 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; @@ -729,8 +718,8 @@ TkMenuButtonWorldChanged(instanceData) } /* - * Allocate the disabled graphics context, for drawing text in - * its disabled state. + * Allocate the disabled graphics context, for drawing text in its + * disabled state. */ mask = GCForeground | GCBackground | GCFont; @@ -762,36 +751,36 @@ TkMenuButtonWorldChanged(instanceData) * * MenuButtonEventProc -- * - * This procedure is invoked by the Tk dispatcher for various - * events on buttons. + * This function is invoked by the Tk dispatcher for various events on + * buttons. * * Results: * None. * * Side effects: - * When the window gets deleted, internal structures get - * cleaned up. When it gets exposed, it is redisplayed. + * 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. */ +MenuButtonEventProc( + 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. + * Must redraw after size changes, since layout could have changed and + * borders will need to be redrawn. */ goto redraw; } else if (eventPtr->type == DestroyNotify) { - DestroyMenuButton((char *) mbPtr); + DestroyMenuButton((char *) mbPtr); } else if (eventPtr->type == FocusIn) { if (eventPtr->xfocus.detail != NotifyInferior) { mbPtr->flags |= GOT_FOCUS; @@ -809,7 +798,7 @@ MenuButtonEventProc(clientData, eventPtr) } return; - redraw: + redraw: if ((mbPtr->tkwin != NULL) && !(mbPtr->flags & REDRAW_PENDING)) { Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr); mbPtr->flags |= REDRAW_PENDING; @@ -821,9 +810,9 @@ MenuButtonEventProc(clientData, eventPtr) * * 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. + * This function is invoked when a widget command is deleted. If the + * widget isn't already in the process of being destroyed, this command + * destroys it. * * Results: * None. @@ -835,17 +824,17 @@ MenuButtonEventProc(clientData, eventPtr) */ static void -MenuButtonCmdDeletedProc(clientData) - ClientData clientData; /* Pointer to widget record for widget. */ +MenuButtonCmdDeletedProc( + 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. + * This function 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 function destroys the + * widget. */ if (tkwin != NULL) { @@ -858,8 +847,8 @@ MenuButtonCmdDeletedProc(clientData) * * MenuButtonTextVarProc -- * - * This procedure is invoked when someone changes the variable - * whose contents are to be displayed in a menu button. + * This function is invoked when someone changes the variable whose + * contents are to be displayed in a menu button. * * Results: * NULL is always returned. @@ -873,19 +862,20 @@ MenuButtonCmdDeletedProc(clientData) /* ARGSUSED */ static char * -MenuButtonTextVarProc(clientData, interp, name1, name2, flags) - ClientData clientData; /* Information about button. */ - Tcl_Interp *interp; /* Interpreter containing variable. */ - CONST char *name1; /* Name of variable. */ - CONST char *name2; /* Second part of variable name. */ - int flags; /* Information about what happened. */ +MenuButtonTextVarProc( + ClientData clientData, /* Information about button. */ + Tcl_Interp *interp, /* Interpreter containing variable. */ + CONST char *name1, /* Name of variable. */ + CONST char *name2, /* Second part of variable name. */ + int flags) /* Information about what happened. */ { register TkMenuButton *mbPtr = (TkMenuButton *) clientData; CONST char *value; + unsigned len; /* - * If the variable is unset, then immediately recreate it unless - * the whole interpreter is going away. + * If the variable is unset, then immediately recreate it unless the whole + * interpreter is going away. */ if (flags & TCL_TRACE_UNSETS) { @@ -896,7 +886,7 @@ MenuButtonTextVarProc(clientData, interp, name1, name2, flags) TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS, MenuButtonTextVarProc, clientData); } - return (char *) NULL; + return NULL; } value = Tcl_GetVar(interp, mbPtr->textVarName, TCL_GLOBAL_ONLY); @@ -906,8 +896,9 @@ MenuButtonTextVarProc(clientData, interp, name1, name2, flags) if (mbPtr->text != NULL) { ckfree(mbPtr->text); } - mbPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1)); - strcpy(mbPtr->text, value); + len = 1 + (unsigned) strlen(value); + mbPtr->text = (char *) ckalloc(len); + memcpy(mbPtr->text, value, len); TkpComputeMenuButtonGeometry(mbPtr); if ((mbPtr->tkwin != NULL) && Tk_IsMapped(mbPtr->tkwin) @@ -915,7 +906,7 @@ MenuButtonTextVarProc(clientData, interp, name1, name2, flags) Tcl_DoWhenIdle(TkpDisplayMenuButton, (ClientData) mbPtr); mbPtr->flags |= REDRAW_PENDING; } - return (char *) NULL; + return NULL; } /* @@ -923,9 +914,9 @@ MenuButtonTextVarProc(clientData, interp, name1, name2, flags) * * 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. + * This function 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. @@ -937,13 +928,13 @@ MenuButtonTextVarProc(clientData, interp, name1, name2, flags) */ 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. */ +MenuButtonImageProc( + ClientData clientData, /* Pointer to widget record. */ + int x, int y, /* Upper left pixel (within image) that must + * be redisplayed. */ + int width, int height, /* Dimensions of area to redisplay (may be <= + * 0). */ + int imgWidth, int imgHeight)/* New dimensions of image. */ { register TkMenuButton *mbPtr = (TkMenuButton *) clientData; @@ -955,3 +946,11 @@ MenuButtonImageProc(clientData, x, y, width, height, imgWidth, imgHeight) } } } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |