2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these libraries and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: BusyPixmap.C /main/3 1996/04/21 19:32:02 drk $ */
27 * RESTRICTED CONFIDENTIAL INFORMATION:
29 * The information in this document is subject to special
30 * restrictions in a confidential disclosure agreement bertween
31 * HP, IBM, Sun, USL, SCO and Univel. Do not distribute this
32 * document outside HP, IBM, Sun, USL, SCO, or Univel wihtout
33 * Sun's specific written approval. This documment and all copies
34 * and derivative works thereof must be returned or destroyed at
37 * Copyright 1993 Sun Microsystems, Inc. All rights reserved.
42 ///////////////////////////////////////////////////////////////////////////////
43 //////////////////////////////////////////////////////////////////////////////
44 // This example code is from the book:
46 // Object-Oriented Programming with C++ and OSF/Motif
49 // Prentice Hall, 1992
52 // Copyright 1991 by Prentice Hall
53 // All Rights Reserved
55 // Permission to use, copy, modify, and distribute this software for
56 // any purpose except publication and without fee is hereby granted, provided
57 // that the above copyright notice appear in all copies of the software.
58 ///////////////////////////////////////////////////////////////////////////////
59 //////////////////////////////////////////////////////////////////////////////
62 ///////////////////////////////////////////////////
64 ///////////////////////////////////////////////////
65 #include "BusyPixmap.h"
71 BusyPixmap::BusyPixmap ( Widget w ) :
72 PixmapCycler ( NUMPIXMAPS, PIXMAPSIZE, PIXMAPSIZE ),
79 void BusyPixmap::createPixmaps()
84 // Create a graphics context used to draw each pixmap,
85 // based on the colors of the given widget
88 XmNforeground, &gcv.foreground,
89 XmNbackground, &gcv.background,
92 _gc = XtGetGC ( _w, GCForeground | GCBackground, &gcv );
94 // Create a second GC used to fill the pixmap with
95 // the background color of the widget
98 XmNforeground, &gcv.background,
99 XmNbackground, &gcv.foreground,
102 _inverseGC = XtGetGC ( _w, GCForeground | GCBackground, &gcv );
104 // Define the starting increment, and a slice of the pie.
105 // The size of the pie slice depends on the number of pixmaps
109 delta = 360 / NUMPIXMAPS;
111 for ( i = 0; i < NUMPIXMAPS; i++)
113 // Create a pixmap for each slice of the pie. X measures
114 // counterclockwise, so subtract the size of each slice
115 // so the sequence moves clockwise.
117 _pixmapList[i] = createBusyPixmap ( angle, delta );
121 // Release the GCs after all pixmaps have been created
123 XtReleaseGC ( _w, _gc );
124 XtReleaseGC ( _w, _inverseGC );
127 Pixmap BusyPixmap::createBusyPixmap ( int start,
131 const int margin = 1;
133 // Create a pixmap. Use the root window used by the widget,
134 // because the widget may not be realized, or may be a gadget
136 pm = XCreatePixmap ( XtDisplay ( _w ),
137 RootWindowOfScreen ( XtScreen ( _w ) ),
139 DefaultDepthOfScreen ( XtScreen ( _w ) ) );
141 // Pixmaps have to be cleared by filling them with a background color
143 XFillRectangle ( XtDisplay ( _w ),
146 0, 0, _width, _height );
148 // Draw a complete circle just inside the bounds of the pxmap
150 XDrawArc ( XtDisplay ( _w ),
155 _height - 2 * margin,
158 // Draw the pie slice as a solid color
160 XFillArc ( XtDisplay ( _w ),
165 _height - 2 * margin,
166 start * 64, end * 64 );