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Annotation of researchv9/X11/src/X.V11R1/clients/xmh/button.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char rcs_id[] = "$Header: button.c,v 1.10 87/09/11 08:17:57 toddb Exp $";
                      3: #endif lint
                      4: /*
                      5:  *                       COPYRIGHT 1987
                      6:  *                DIGITAL EQUIPMENT CORPORATION
                      7:  *                    MAYNARD, MASSACHUSETTS
                      8:  *                     ALL RIGHTS RESERVED.
                      9:  *
                     10:  * THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE AND
                     11:  * SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT CORPORATION.
                     12:  * DIGITAL MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THIS SOFTWARE FOR
                     13:  * ANY PURPOSE.  IT IS SUPPLIED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
                     14:  *
                     15:  * IF THE SOFTWARE IS MODIFIED IN A MANNER CREATING DERIVATIVE COPYRIGHT RIGHTS,
                     16:  * APPROPRIATE LEGENDS MAY BE PLACED ON THE DERIVATIVE WORK IN ADDITION TO THAT
                     17:  * SET FORTH ABOVE.
                     18:  *
                     19:  *
                     20:  * Permission to use, copy, modify, and distribute this software and its
                     21:  * documentation for any purpose and without fee is hereby granted, provided
                     22:  * that the above copyright notice appear in all copies and that both that
                     23:  * copyright notice and this permission notice appear in supporting documentation,
                     24:  * and that the name of Digital Equipment Corporation not be used in advertising
                     25:  * or publicity pertaining to distribution of the software without specific,
                     26:  * written prior permission.
                     27:  */
                     28: 
                     29: /* button.c -- Handle a button being pressed */
                     30: 
                     31: #include "xmh.h"
                     32: #include "bboxint.h"
                     33: 
                     34: 
                     35: /* Highlight or unhighlight the given button. */
                     36: 
                     37: FlipColors(button)
                     38: Button button;
                     39: {
                     40:     static Arg arglist[] = {
                     41:        {XtNforeground, NULL},
                     42:        {XtNbackground, NULL},
                     43:     };
                     44:     XtArgVal temp;
                     45:     XtCommandGetValues(DISPLAY button->window, arglist, XtNumber(arglist));
                     46:     temp = arglist[0].value;
                     47:     arglist[0].value = arglist[1].value;
                     48:     arglist[1].value = temp;
                     49:     XtCommandSetValues(DISPLAY button->window, arglist, XtNumber(arglist));
                     50: }
                     51: 
                     52: 
                     53: /* The given button has just been pressed.  (This routine is usually called
                     54:    by the command button widget code.)  If it's a radio button, select it.
                     55:    Then call the function registered for this button. */
                     56: 
                     57: void DoButtonPress(button)
                     58: Button button;
                     59: {
                     60:     ButtonBox buttonbox = button->buttonbox;
                     61:     Scrn scrn = buttonbox->scrn;
                     62:     if (!button->enabled) return;
                     63:     if (buttonbox->radio && *(buttonbox->radio) != button) {
                     64:        FlipColors(*(buttonbox->radio));
                     65:        FlipColors(button);
                     66:        *(buttonbox->radio) = button;
                     67:     }
                     68:     LastButtonPressed = button;
                     69:     (*(button->func))(scrn);
                     70: }
                     71: 
                     72: 
                     73: /* Act as if the last button pressed was pressed again. */
                     74: 
                     75: void RedoLastButton()
                     76: {
                     77:     if (LastButtonPressed)
                     78:        DoButtonPress(LastButtonPressed);
                     79: }
                     80: 
                     81: 
                     82: /* Returns the screen in which the last button was pressed. */
                     83: 
                     84: Scrn LastButtonScreen()
                     85: {
                     86:     return LastButtonPressed->buttonbox->scrn;
                     87: }
                     88: 
                     89: 
                     90: #ifdef X10
                     91: /* Handle X10 bug where we lose exit window events on the last button. */
                     92: 
                     93: ClearButtonTracks()
                     94: {
                     95:     XEvent event;
                     96:     event.type = LeaveWindow;
                     97:     event.window = LastButtonPressed->window;
                     98:     XtDispatchEvent(DISPLAY &event);
                     99: }
                    100: #endif X10

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