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- /*
- * tkMenubutton.h --
- *
- * Declarations of types and functions used to implement
- * the menubutton widget.
- *
- * Copyright (c) 1996-1997 by 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.h 1.3 97/04/11 11:24:15
- */
-
- #ifndef _TKMENUBUTTON
- #define _TKMENUBUTTON
-
- #ifndef _TKINT
- #include "tkInt.h"
- #endif
-
- /*
- * A data structure of the following type is kept for each
- * widget managed by this file:
- */
-
- typedef struct {
- Tk_Window tkwin; /* Window that embodies the widget. NULL
- * means that the window has been destroyed
- * but the data structures haven't yet been
- * cleaned up.*/
- Display *display; /* Display containing widget. Needed, among
- * other things, so that resources can bee
- * freed up even after tkwin has gone away. */
- Tcl_Interp *interp; /* Interpreter associated with menubutton. */
- Tcl_Command widgetCmd; /* Token for menubutton's widget command. */
- char *menuName; /* Name of menu associated with widget.
- * Malloc-ed. */
-
- /*
- * Information about what's displayed in the menu button:
- */
-
- char *text; /* Text to display in button (malloc'ed)
- * or NULL. */
- int underline; /* Index of character to underline. */
- char *textVarName; /* Name of variable (malloc'ed) or NULL.
- * If non-NULL, button displays the contents
- * of this variable. */
- Pixmap bitmap; /* Bitmap to display or None. If not None
- * then text and textVar and underline
- * are ignored. */
- char *imageString; /* Name of image to display (malloc'ed), or
- * NULL. If non-NULL, bitmap, text, and
- * textVarName are ignored. */
- Tk_Image image; /* Image to display in window, or NULL if
- * none. */
-
- /*
- * Information used when displaying widget:
- */
-
- Tk_Uid state; /* State of button for display purposes:
- * normal, active, or disabled. */
- Tk_3DBorder normalBorder; /* Structure used to draw 3-D
- * border and background when window
- * isn't active. NULL means no such
- * border exists. */
- Tk_3DBorder activeBorder; /* Structure used to draw 3-D
- * border and background when window
- * is active. NULL means no such
- * border exists. */
- int borderWidth; /* Width of border. */
- int relief; /* 3-d effect: TK_RELIEF_RAISED, etc. */
- int highlightWidth; /* Width in pixels of highlight to draw
- * around widget when it has the focus.
- * <= 0 means don't draw a highlight. */
- XColor *highlightBgColorPtr;
- /* Color for drawing traversal highlight
- * area when highlight is off. */
- XColor *highlightColorPtr; /* Color for drawing traversal highlight. */
- int inset; /* Total width of all borders, including
- * traversal highlight and 3-D border.
- * Indicates how much interior stuff must
- * be offset from outside edges to leave
- * room for borders. */
- Tk_Font tkfont; /* Information about text font, or NULL. */
- XColor *normalFg; /* Foreground color in normal mode. */
- XColor *activeFg; /* Foreground color in active mode. NULL
- * means use normalFg instead. */
- XColor *disabledFg; /* Foreground color when disabled. NULL
- * means use normalFg with a 50% stipple
- * instead. */
- GC normalTextGC; /* GC for drawing text in normal mode. */
- GC activeTextGC; /* GC for drawing text in active mode (NULL
- * means use normalTextGC). */
- Pixmap gray; /* Pixmap for displaying disabled text/icon if
- * disabledFg is NULL. */
- GC disabledGC; /* Used to produce disabled effect. If
- * disabledFg isn't NULL, this GC is used to
- * draw button text or icon. Otherwise
- * text or icon is drawn with normalGC and
- * this GC is used to stipple background
- * across it. */
- int leftBearing; /* Distance from text origin to leftmost drawn
- * pixel (positive means to right). */
- int rightBearing; /* Amount text sticks right from its origin. */
- char *widthString; /* Value of -width option. Malloc'ed. */
- char *heightString; /* Value of -height option. Malloc'ed. */
- int width, height; /* If > 0, these specify dimensions to request
- * for window, in characters for text and in
- * pixels for bitmaps. In this case the actual
- * size of the text string or bitmap is
- * ignored in computing desired window size. */
- int wrapLength; /* Line length (in pixels) at which to wrap
- * onto next line. <= 0 means don't wrap
- * except at newlines. */
- int padX, padY; /* Extra space around text or bitmap (pixels
- * on each side). */
- Tk_Anchor anchor; /* Where text/bitmap should be displayed
- * inside window region. */
- Tk_Justify justify; /* Justification to use for multi-line text. */
- int textWidth; /* Width needed to display text as requested,
- * in pixels. */
- int textHeight; /* Height needed to display text as requested,
- * in pixels. */
- Tk_TextLayout textLayout; /* Saved text layout information. */
- int indicatorOn; /* Non-zero means display indicator; 0 means
- * don't display. */
- int indicatorHeight; /* Height of indicator in pixels. This same
- * amount of extra space is also left on each
- * side of the indicator. 0 if no indicator. */
- int indicatorWidth; /* Width of indicator in pixels, including
- * indicatorHeight in padding on each side.
- * 0 if no indicator. */
-
- /*
- * Miscellaneous information:
- */
-
- Tk_Uid direction; /* Direction for where to pop the menu.
- * Valid directions are "above", "below",
- * "left", "right", and "flush". "flush"
- * means that the upper left corner of the
- * menubutton is where the menu pops up.
- * "above" and "below" will attempt to pop
- * the menu compleletly above or below
- * the menu respectively.
- * "left" and "right" will pop the menu
- * left or right, and the active item
- * will be next to the button. */
- Tk_Cursor cursor; /* Current cursor for window, or None. */
- char *takeFocus; /* Value of -takefocus option; not used in
- * the C code, but used by keyboard traversal
- * scripts. Malloc'ed, but may be NULL. */
- int flags; /* Various flags; see below for
- * definitions. */
- } TkMenuButton;
-
- /*
- * Flag bits for buttons:
- *
- * REDRAW_PENDING: Non-zero means a DoWhenIdle handler
- * has already been queued to redraw
- * this window.
- * POSTED: Non-zero means that the menu associated
- * with this button has been posted (typically
- * because of an active button press).
- * GOT_FOCUS: Non-zero means this button currently
- * has the input focus.
- */
-
- #define REDRAW_PENDING 1
- #define POSTED 2
- #define GOT_FOCUS 4
-
- /*
- * The following constants define the dimensions of the cascade indicator,
- * which is displayed if the "-indicatoron" option is true. The units for
- * these options are 1/10 millimeters.
- */
-
- #define INDICATOR_WIDTH 40
- #define INDICATOR_HEIGHT 17
-
- /*
- * Declaration of variables shared between the files in the button module.
- */
-
- extern TkClassProcs tkpMenubuttonClass;
-
- /*
- * Declaration of procedures used in the implementation of the button
- * widget.
- */
-
- EXTERN void TkpComputeMenuButtonGeometry _ANSI_ARGS_((
- TkMenuButton *mbPtr));
- EXTERN TkMenuButton * TkpCreateMenuButton _ANSI_ARGS_((Tk_Window tkwin));
- EXTERN void TkpDisplayMenuButton _ANSI_ARGS_((
- ClientData clientData));
- EXTERN void TkpDestroyMenuButton _ANSI_ARGS_((
- TkMenuButton *mbPtr));
- EXTERN void TkMenuButtonWorldChanged _ANSI_ARGS_((
- ClientData instanceData));
-
- #endif /* _TKMENUBUTTON */
-