1238 lines
39 KiB
C
1238 lines
39 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) 1994-1995 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 1.77 96/02/15 18:52:22
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*/
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#include "tkPort.h"
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#include "default.h"
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#include "tkInt.h"
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/*
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* A data structure of the following type is kept for each
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* widget managed by this file:
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*/
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typedef struct {
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Tk_Window tkwin; /* Window that embodies the widget. NULL
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* means that the window has been destroyed
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* but the data structures haven't yet been
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* cleaned up.*/
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Display *display; /* Display containing widget. Needed, among
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* other things, so that resources can bee
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* freed up even after tkwin has gone away. */
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Tcl_Interp *interp; /* Interpreter associated with menubutton. */
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Tcl_Command widgetCmd; /* Token for menubutton's widget command. */
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char *menuName; /* Name of menu associated with widget.
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* Malloc-ed. */
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/*
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* Information about what's displayed in the menu button:
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*/
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char *text; /* Text to display in button (malloc'ed)
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* or NULL. */
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int numChars; /* # of characters in text. */
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int underline; /* Index of character to underline. */
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char *textVarName; /* Name of variable (malloc'ed) or NULL.
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* If non-NULL, button displays the contents
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* of this variable. */
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Pixmap bitmap; /* Bitmap to display or None. If not None
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* then text and textVar and underline
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* are ignored. */
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char *imageString; /* Name of image to display (malloc'ed), or
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* NULL. If non-NULL, bitmap, text, and
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* textVarName are ignored. */
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Tk_Image image; /* Image to display in window, or NULL if
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* none. */
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/*
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* Information used when displaying widget:
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*/
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Tk_Uid state; /* State of button for display purposes:
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* normal, active, or disabled. */
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Tk_3DBorder normalBorder; /* Structure used to draw 3-D
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* border and background when window
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* isn't active. NULL means no such
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* border exists. */
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Tk_3DBorder activeBorder; /* Structure used to draw 3-D
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* border and background when window
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* is active. NULL means no such
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* border exists. */
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int borderWidth; /* Width of border. */
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int relief; /* 3-d effect: TK_RELIEF_RAISED, etc. */
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int highlightWidth; /* Width in pixels of highlight to draw
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* around widget when it has the focus.
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* <= 0 means don't draw a highlight. */
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XColor *highlightBgColorPtr;
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/* Color for drawing traversal highlight
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* area when highlight is off. */
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XColor *highlightColorPtr; /* Color for drawing traversal highlight. */
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int inset; /* Total width of all borders, including
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* traversal highlight and 3-D border.
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* Indicates how much interior stuff must
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* be offset from outside edges to leave
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* room for borders. */
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XFontStruct *fontPtr; /* Information about text font, or NULL. */
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XColor *normalFg; /* Foreground color in normal mode. */
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XColor *activeFg; /* Foreground color in active mode. NULL
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* means use normalFg instead. */
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XColor *disabledFg; /* Foreground color when disabled. NULL
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* means use normalFg with a 50% stipple
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* instead. */
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GC normalTextGC; /* GC for drawing text in normal mode. */
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GC activeTextGC; /* GC for drawing text in active mode (NULL
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* means use normalTextGC). */
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Pixmap gray; /* Pixmap for displaying disabled text/icon if
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* disabledFg is NULL. */
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GC disabledGC; /* Used to produce disabled effect. If
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* disabledFg isn't NULL, this GC is used to
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* draw button text or icon. Otherwise
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* text or icon is drawn with normalGC and
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* this GC is used to stipple background
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* across it. */
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int leftBearing; /* Distance from text origin to leftmost drawn
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* pixel (positive means to right). */
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int rightBearing; /* Amount text sticks right from its origin. */
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char *widthString; /* Value of -width option. Malloc'ed. */
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char *heightString; /* Value of -height option. Malloc'ed. */
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int width, height; /* If > 0, these specify dimensions to request
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* for window, in characters for text and in
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* pixels for bitmaps. In this case the actual
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* size of the text string or bitmap is
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* ignored in computing desired window size. */
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int wrapLength; /* Line length (in pixels) at which to wrap
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* onto next line. <= 0 means don't wrap
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* except at newlines. */
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int padX, padY; /* Extra space around text or bitmap (pixels
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* on each side). */
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Tk_Anchor anchor; /* Where text/bitmap should be displayed
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* inside window region. */
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Tk_Justify justify; /* Justification to use for multi-line text. */
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int textWidth; /* Width needed to display text as requested,
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* in pixels. */
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int textHeight; /* Height needed to display text as requested,
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* in pixels. */
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int indicatorOn; /* Non-zero means display indicator; 0 means
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* don't display. */
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int indicatorHeight; /* Height of indicator in pixels. This same
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* amount of extra space is also left on each
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* side of the indicator. 0 if no indicator. */
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int indicatorWidth; /* Width of indicator in pixels, including
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* indicatorHeight in padding on each side.
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* 0 if no indicator. */
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/*
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* Miscellaneous information:
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*/
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Tk_Cursor cursor; /* Current cursor for window, or None. */
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char *takeFocus; /* Value of -takefocus option; not used in
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* the C code, but used by keyboard traversal
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* scripts. Malloc'ed, but may be NULL. */
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int flags; /* Various flags; see below for
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* definitions. */
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} MenuButton;
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/*
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* Flag bits for buttons:
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*
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* REDRAW_PENDING: Non-zero means a DoWhenIdle handler
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* has already been queued to redraw
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* this window.
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* POSTED: Non-zero means that the menu associated
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* with this button has been posted (typically
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* because of an active button press).
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* GOT_FOCUS: Non-zero means this button currently
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* has the input focus.
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*/
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#define REDRAW_PENDING 1
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#define POSTED 2
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#define GOT_FOCUS 4
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/*
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* The following constants define the dimensions of the cascade indicator,
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* which is displayed if the "-indicatoron" option is true. The units for
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* these options are 1/10 millimeters.
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*/
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#define INDICATOR_WIDTH 40
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#define INDICATOR_HEIGHT 17
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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(MenuButton, 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(MenuButton, 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(MenuButton, 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(MenuButton, 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(MenuButton, anchor), 0},
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{TK_CONFIG_BORDER, "-background", "background", "Background",
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DEF_MENUBUTTON_BG_COLOR, Tk_Offset(MenuButton, 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(MenuButton, 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(MenuButton, 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(MenuButton, borderWidth), 0},
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{TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
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DEF_MENUBUTTON_CURSOR, Tk_Offset(MenuButton, cursor),
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TK_CONFIG_NULL_OK},
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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(MenuButton, 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(MenuButton, disabledFg),
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TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
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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(MenuButton, fontPtr), 0},
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{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
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DEF_MENUBUTTON_FG, Tk_Offset(MenuButton, normalFg), 0},
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{TK_CONFIG_STRING, "-height", "height", "Height",
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DEF_MENUBUTTON_HEIGHT, Tk_Offset(MenuButton, 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(MenuButton, highlightBgColorPtr), 0},
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{TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
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DEF_MENUBUTTON_HIGHLIGHT, Tk_Offset(MenuButton, highlightColorPtr), 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(MenuButton, highlightWidth), 0},
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{TK_CONFIG_STRING, "-image", "image", "Image",
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DEF_MENUBUTTON_IMAGE, Tk_Offset(MenuButton, 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(MenuButton, indicatorOn), 0},
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{TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify",
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DEF_MENUBUTTON_JUSTIFY, Tk_Offset(MenuButton, justify), 0},
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{TK_CONFIG_STRING, "-menu", "menu", "Menu",
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DEF_MENUBUTTON_MENU, Tk_Offset(MenuButton, 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(MenuButton, padX), 0},
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{TK_CONFIG_PIXELS, "-pady", "padY", "Pad",
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DEF_MENUBUTTON_PADY, Tk_Offset(MenuButton, padY), 0},
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{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
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DEF_MENUBUTTON_RELIEF, Tk_Offset(MenuButton, relief), 0},
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{TK_CONFIG_UID, "-state", "state", "State",
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DEF_MENUBUTTON_STATE, Tk_Offset(MenuButton, state), 0},
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{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
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DEF_MENUBUTTON_TAKE_FOCUS, Tk_Offset(MenuButton, 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(MenuButton, text), 0},
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{TK_CONFIG_STRING, "-textvariable", "textVariable", "Variable",
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DEF_MENUBUTTON_TEXT_VARIABLE, Tk_Offset(MenuButton, 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(MenuButton, underline), 0},
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{TK_CONFIG_STRING, "-width", "width", "Width",
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DEF_MENUBUTTON_WIDTH, Tk_Offset(MenuButton, widthString), 0},
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{TK_CONFIG_PIXELS, "-wraplength", "wrapLength", "WrapLength",
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DEF_MENUBUTTON_WRAP_LENGTH, Tk_Offset(MenuButton, 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 ComputeMenuButtonGeometry _ANSI_ARGS_((
|
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MenuButton *mbPtr));
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static void MenuButtonCmdDeletedProc _ANSI_ARGS_((
|
||
ClientData clientData));
|
||
static void MenuButtonEventProc _ANSI_ARGS_((ClientData clientData,
|
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XEvent *eventPtr));
|
||
static void MenuButtonImageProc _ANSI_ARGS_((ClientData clientData,
|
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int x, int y, int width, int height, int imgWidth,
|
||
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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MenuButton *mbPtr, int argc, char **argv,
|
||
int flags));
|
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static void DestroyMenuButton _ANSI_ARGS_((char *memPtr));
|
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static void DisplayMenuButton _ANSI_ARGS_((ClientData clientData));
|
||
|
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/*
|
||
*--------------------------------------------------------------
|
||
*
|
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* Tk_MenubuttonCmd --
|
||
*
|
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* 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
|
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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 MenuButton *mbPtr;
|
||
Tk_Window tkwin = (Tk_Window) clientData;
|
||
Tk_Window new;
|
||
|
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if (argc < 2) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
||
argv[0], " pathName ?options?\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Create the new window.
|
||
*/
|
||
|
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new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], (char *) NULL);
|
||
if (new == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Initialize the data structure for the button.
|
||
*/
|
||
|
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mbPtr = (MenuButton *) ckalloc(sizeof(MenuButton));
|
||
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->numChars = 0;
|
||
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->fontPtr = 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->indicatorOn = 0;
|
||
mbPtr->indicatorWidth = 0;
|
||
mbPtr->indicatorHeight = 0;
|
||
mbPtr->cursor = None;
|
||
mbPtr->takeFocus = NULL;
|
||
mbPtr->flags = 0;
|
||
|
||
Tk_SetClass(mbPtr->tkwin, "Menubutton");
|
||
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 MenuButton *mbPtr = (MenuButton *) clientData;
|
||
int result = TCL_OK;
|
||
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);
|
||
goto error;
|
||
}
|
||
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);
|
||
goto error;
|
||
}
|
||
Tcl_Release((ClientData) mbPtr);
|
||
return result;
|
||
|
||
error:
|
||
Tcl_Release((ClientData) mbPtr);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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 MenuButton *mbPtr = (MenuButton *) 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_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 MenuButton *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. */
|
||
{
|
||
XGCValues gcValues;
|
||
GC newGC;
|
||
unsigned long mask;
|
||
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->highlightWidth < 0) {
|
||
mbPtr->highlightWidth = 0;
|
||
}
|
||
|
||
gcValues.font = mbPtr->fontPtr->fid;
|
||
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;
|
||
newGC = Tk_GetGC(mbPtr->tkwin,
|
||
GCForeground|GCBackground|GCFont|GCGraphicsExposures, &gcValues);
|
||
if (mbPtr->normalTextGC != None) {
|
||
Tk_FreeGC(mbPtr->display, mbPtr->normalTextGC);
|
||
}
|
||
mbPtr->normalTextGC = newGC;
|
||
|
||
gcValues.font = mbPtr->fontPtr->fid;
|
||
gcValues.foreground = mbPtr->activeFg->pixel;
|
||
gcValues.background = Tk_3DBorderColor(mbPtr->activeBorder)->pixel;
|
||
newGC = Tk_GetGC(mbPtr->tkwin, GCForeground|GCBackground|GCFont,
|
||
&gcValues);
|
||
if (mbPtr->activeTextGC != None) {
|
||
Tk_FreeGC(mbPtr->display, mbPtr->activeTextGC);
|
||
}
|
||
mbPtr->activeTextGC = newGC;
|
||
|
||
gcValues.font = mbPtr->fontPtr->fid;
|
||
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;
|
||
if (mbPtr->gray == None) {
|
||
mbPtr->gray = Tk_GetBitmap(interp, mbPtr->tkwin,
|
||
Tk_GetUid("gray50"));
|
||
if (mbPtr->gray == None) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
gcValues.fill_style = FillStippled;
|
||
gcValues.stipple = mbPtr->gray;
|
||
mask = GCForeground|GCFillStyle|GCStipple;
|
||
}
|
||
newGC = Tk_GetGC(mbPtr->tkwin, mask, &gcValues);
|
||
if (mbPtr->disabledGC != None) {
|
||
Tk_FreeGC(mbPtr->display, mbPtr->disabledGC);
|
||
}
|
||
mbPtr->disabledGC = newGC;
|
||
|
||
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;
|
||
}
|
||
}
|
||
ComputeMenuButtonGeometry(mbPtr);
|
||
|
||
/*
|
||
* Lastly, arrange for the button to be redisplayed.
|
||
*/
|
||
|
||
if (Tk_IsMapped(mbPtr->tkwin) && !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(DisplayMenuButton, (ClientData) mbPtr);
|
||
mbPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* DisplayMenuButton --
|
||
*
|
||
* This procedure is invoked to display a menubutton widget.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Commands are output to X to display the menubutton in its
|
||
* current mode.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
DisplayMenuButton(clientData)
|
||
ClientData clientData; /* Information about widget. */
|
||
{
|
||
register MenuButton *mbPtr = (MenuButton *) clientData;
|
||
GC gc;
|
||
Tk_3DBorder border;
|
||
Pixmap pixmap;
|
||
int x = 0; /* Initialization needed only to stop
|
||
* compiler warning. */
|
||
int y;
|
||
register Tk_Window tkwin = mbPtr->tkwin;
|
||
int width, height;
|
||
|
||
mbPtr->flags &= ~REDRAW_PENDING;
|
||
if ((mbPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
|
||
return;
|
||
}
|
||
|
||
if ((mbPtr->state == tkDisabledUid) && (mbPtr->disabledFg != NULL)) {
|
||
gc = mbPtr->disabledGC;
|
||
border = mbPtr->normalBorder;
|
||
} else if ((mbPtr->state == tkActiveUid) && !Tk_StrictMotif(mbPtr->tkwin)) {
|
||
gc = mbPtr->activeTextGC;
|
||
border = mbPtr->activeBorder;
|
||
} else {
|
||
gc = mbPtr->normalTextGC;
|
||
border = mbPtr->normalBorder;
|
||
}
|
||
|
||
/*
|
||
* In order to avoid screen flashes, this procedure redraws
|
||
* the menu button in a pixmap, then copies the pixmap to the
|
||
* screen in a single operation. This means that there's no
|
||
* point in time where the on-sreen image has been cleared.
|
||
*/
|
||
|
||
pixmap = Tk_GetPixmap(mbPtr->display, Tk_WindowId(tkwin),
|
||
Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
|
||
Tk_Fill3DRectangle(tkwin, pixmap, border, 0, 0, Tk_Width(tkwin),
|
||
Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
|
||
|
||
/*
|
||
* Display image or bitmap or text for button.
|
||
*/
|
||
|
||
if (mbPtr->image != None) {
|
||
Tk_SizeOfImage(mbPtr->image, &width, &height);
|
||
|
||
imageOrBitmap:
|
||
switch (mbPtr->anchor) {
|
||
case TK_ANCHOR_NW: case TK_ANCHOR_W: case TK_ANCHOR_SW:
|
||
x += mbPtr->inset;
|
||
break;
|
||
case TK_ANCHOR_N: case TK_ANCHOR_CENTER: case TK_ANCHOR_S:
|
||
x += ((int) (Tk_Width(tkwin) - width
|
||
- mbPtr->indicatorWidth))/2;
|
||
break;
|
||
default:
|
||
x += Tk_Width(tkwin) - mbPtr->inset - width
|
||
- mbPtr->indicatorWidth;
|
||
break;
|
||
}
|
||
switch (mbPtr->anchor) {
|
||
case TK_ANCHOR_NW: case TK_ANCHOR_N: case TK_ANCHOR_NE:
|
||
y = mbPtr->inset;
|
||
break;
|
||
case TK_ANCHOR_W: case TK_ANCHOR_CENTER: case TK_ANCHOR_E:
|
||
y = ((int) (Tk_Height(tkwin) - height))/2;
|
||
break;
|
||
default:
|
||
y = Tk_Height(tkwin) - mbPtr->inset - height;
|
||
break;
|
||
}
|
||
if (mbPtr->image != NULL) {
|
||
Tk_RedrawImage(mbPtr->image, 0, 0, width, height, pixmap,
|
||
x, y);
|
||
} else {
|
||
XCopyPlane(mbPtr->display, mbPtr->bitmap, pixmap,
|
||
gc, 0, 0, (unsigned) width, (unsigned) height, x, y, 1);
|
||
}
|
||
} else if (mbPtr->bitmap != None) {
|
||
Tk_SizeOfBitmap(mbPtr->display, mbPtr->bitmap, &width, &height);
|
||
goto imageOrBitmap;
|
||
} else {
|
||
width = mbPtr->textWidth;
|
||
height = mbPtr->textHeight;
|
||
switch (mbPtr->anchor) {
|
||
case TK_ANCHOR_NW: case TK_ANCHOR_W: case TK_ANCHOR_SW:
|
||
x = mbPtr->inset + mbPtr->padX;
|
||
break;
|
||
case TK_ANCHOR_N: case TK_ANCHOR_CENTER: case TK_ANCHOR_S:
|
||
x = ((int) (Tk_Width(tkwin) - width
|
||
- mbPtr->indicatorWidth))/2;
|
||
break;
|
||
default:
|
||
x = Tk_Width(tkwin) - width - mbPtr->padX - mbPtr->inset
|
||
- mbPtr->indicatorWidth;
|
||
break;
|
||
}
|
||
switch (mbPtr->anchor) {
|
||
case TK_ANCHOR_NW: case TK_ANCHOR_N: case TK_ANCHOR_NE:
|
||
y = mbPtr->inset + mbPtr->padY;
|
||
break;
|
||
case TK_ANCHOR_W: case TK_ANCHOR_CENTER: case TK_ANCHOR_E:
|
||
y = ((int) (Tk_Height(tkwin) - height))/2;
|
||
break;
|
||
default:
|
||
y = Tk_Height(tkwin) - mbPtr->inset - mbPtr->padY - height;
|
||
break;
|
||
}
|
||
TkDisplayText(mbPtr->display, pixmap, mbPtr->fontPtr,
|
||
mbPtr->text, mbPtr->numChars, x, y, mbPtr->textWidth,
|
||
mbPtr->justify, mbPtr->underline, gc);
|
||
}
|
||
|
||
/*
|
||
* If the menu button is disabled with a stipple rather than a special
|
||
* foreground color, generate the stippled effect.
|
||
*/
|
||
|
||
if ((mbPtr->state == tkDisabledUid)
|
||
&& ((mbPtr->disabledFg == NULL) || (mbPtr->image != NULL))) {
|
||
XFillRectangle(mbPtr->display, pixmap, mbPtr->disabledGC,
|
||
mbPtr->inset, mbPtr->inset,
|
||
(unsigned) (Tk_Width(tkwin) - 2*mbPtr->inset),
|
||
(unsigned) (Tk_Height(tkwin) - 2*mbPtr->inset));
|
||
}
|
||
|
||
/*
|
||
* Draw the cascade indicator for the menu button on the
|
||
* right side of the window, if desired.
|
||
*/
|
||
|
||
if (mbPtr->indicatorOn) {
|
||
int borderWidth;
|
||
|
||
borderWidth = (mbPtr->indicatorHeight+1)/3;
|
||
if (borderWidth < 1) {
|
||
borderWidth = 1;
|
||
}
|
||
Tk_Fill3DRectangle(tkwin, pixmap, border,
|
||
Tk_Width(tkwin) - mbPtr->inset - mbPtr->indicatorWidth
|
||
+ mbPtr->indicatorHeight,
|
||
y + ((int) (height - mbPtr->indicatorHeight))/2,
|
||
mbPtr->indicatorWidth - 2*mbPtr->indicatorHeight,
|
||
mbPtr->indicatorHeight, borderWidth, TK_RELIEF_RAISED);
|
||
}
|
||
|
||
/*
|
||
* Draw the border and traversal highlight last. This way, if the
|
||
* menu button's contents overflow onto the border they'll be covered
|
||
* up by the border.
|
||
*/
|
||
|
||
if (mbPtr->relief != TK_RELIEF_FLAT) {
|
||
Tk_Draw3DRectangle(tkwin, pixmap, border,
|
||
mbPtr->highlightWidth, mbPtr->highlightWidth,
|
||
Tk_Width(tkwin) - 2*mbPtr->highlightWidth,
|
||
Tk_Height(tkwin) - 2*mbPtr->highlightWidth,
|
||
mbPtr->borderWidth, mbPtr->relief);
|
||
}
|
||
if (mbPtr->highlightWidth != 0) {
|
||
GC gc;
|
||
|
||
if (mbPtr->flags & GOT_FOCUS) {
|
||
gc = Tk_GCForColor(mbPtr->highlightColorPtr, pixmap);
|
||
} else {
|
||
gc = Tk_GCForColor(mbPtr->highlightBgColorPtr, pixmap);
|
||
}
|
||
Tk_DrawFocusHighlight(tkwin, gc, mbPtr->highlightWidth, pixmap);
|
||
}
|
||
|
||
/*
|
||
* Copy the information from the off-screen pixmap onto the screen,
|
||
* then delete the pixmap.
|
||
*/
|
||
|
||
XCopyArea(mbPtr->display, pixmap, Tk_WindowId(tkwin),
|
||
mbPtr->normalTextGC, 0, 0, (unsigned) Tk_Width(tkwin),
|
||
(unsigned) Tk_Height(tkwin), 0, 0);
|
||
Tk_FreePixmap(mbPtr->display, pixmap);
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* 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. */
|
||
{
|
||
MenuButton *mbPtr = (MenuButton *) 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) {
|
||
if (mbPtr->tkwin != NULL) {
|
||
mbPtr->tkwin = NULL;
|
||
Tcl_DeleteCommand(mbPtr->interp,
|
||
Tcl_GetCommandName(mbPtr->interp, mbPtr->widgetCmd));
|
||
}
|
||
if (mbPtr->flags & REDRAW_PENDING) {
|
||
Tcl_CancelIdleCall(DisplayMenuButton, (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(DisplayMenuButton, (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. */
|
||
{
|
||
MenuButton *mbPtr = (MenuButton *) 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);
|
||
}
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ComputeMenuButtonGeometry --
|
||
*
|
||
* After changes in a menu button's text or bitmap, this procedure
|
||
* recomputes the menu button's geometry and passes this information
|
||
* along to the geometry manager for the window.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The menu button's window may change size.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
ComputeMenuButtonGeometry(mbPtr)
|
||
register MenuButton *mbPtr; /* Widget record for menu button. */
|
||
{
|
||
int width, height, mm, pixels;
|
||
|
||
mbPtr->inset = mbPtr->highlightWidth + mbPtr->borderWidth;
|
||
if (mbPtr->image != None) {
|
||
Tk_SizeOfImage(mbPtr->image, &width, &height);
|
||
if (mbPtr->width > 0) {
|
||
width = mbPtr->width;
|
||
}
|
||
if (mbPtr->height > 0) {
|
||
height = mbPtr->height;
|
||
}
|
||
} else if (mbPtr->bitmap != None) {
|
||
Tk_SizeOfBitmap(mbPtr->display, mbPtr->bitmap, &width, &height);
|
||
if (mbPtr->width > 0) {
|
||
width = mbPtr->width;
|
||
}
|
||
if (mbPtr->height > 0) {
|
||
height = mbPtr->height;
|
||
}
|
||
} else {
|
||
mbPtr->numChars = strlen(mbPtr->text);
|
||
TkComputeTextGeometry(mbPtr->fontPtr, mbPtr->text,
|
||
mbPtr->numChars, mbPtr->wrapLength, &mbPtr->textWidth,
|
||
&mbPtr->textHeight);
|
||
width = mbPtr->textWidth;
|
||
height = mbPtr->textHeight;
|
||
if (mbPtr->width > 0) {
|
||
width = mbPtr->width * XTextWidth(mbPtr->fontPtr, "0", 1);
|
||
}
|
||
if (mbPtr->height > 0) {
|
||
height = mbPtr->height * (mbPtr->fontPtr->ascent
|
||
+ mbPtr->fontPtr->descent);
|
||
}
|
||
width += 2*mbPtr->padX;
|
||
height += 2*mbPtr->padY;
|
||
}
|
||
|
||
if (mbPtr->indicatorOn) {
|
||
mm = WidthMMOfScreen(Tk_Screen(mbPtr->tkwin));
|
||
pixels = WidthOfScreen(Tk_Screen(mbPtr->tkwin));
|
||
mbPtr->indicatorHeight= (INDICATOR_HEIGHT * pixels)/(10*mm);
|
||
mbPtr->indicatorWidth = (INDICATOR_WIDTH * pixels)/(10*mm)
|
||
+ 2*mbPtr->indicatorHeight;
|
||
width += mbPtr->indicatorWidth;
|
||
} else {
|
||
mbPtr->indicatorHeight = 0;
|
||
mbPtr->indicatorWidth = 0;
|
||
}
|
||
|
||
Tk_GeometryRequest(mbPtr->tkwin, (int) (width + 2*mbPtr->inset),
|
||
(int) (height + 2*mbPtr->inset));
|
||
Tk_SetInternalBorder(mbPtr->tkwin, mbPtr->inset);
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* 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 MenuButton *mbPtr = (MenuButton *) 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);
|
||
ComputeMenuButtonGeometry(mbPtr);
|
||
|
||
if ((mbPtr->tkwin != NULL) && Tk_IsMapped(mbPtr->tkwin)
|
||
&& !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(DisplayMenuButton, (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 MenuButton *mbPtr = (MenuButton *) clientData;
|
||
|
||
if (mbPtr->tkwin != NULL) {
|
||
ComputeMenuButtonGeometry(mbPtr);
|
||
if (Tk_IsMapped(mbPtr->tkwin) && !(mbPtr->flags & REDRAW_PENDING)) {
|
||
Tcl_DoWhenIdle(DisplayMenuButton, (ClientData) mbPtr);
|
||
mbPtr->flags |= REDRAW_PENDING;
|
||
}
|
||
}
|
||
}
|