Mercurial > octave-nkf

annotate src/display.cc @ 12312:b10ea6efdc58 release-3-4-x ss-3-3-91

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
version is now 3.3.91
author John W. Eaton <jwe@octave.org>
date Mon, 31 Jan 2011 08:36:58 -0500
parents fd0a3ac60b0e
children 5fe75fb673ff
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
1 /*
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
2
11523
fd0a3ac60b0e update copyright notices
John W. Eaton <jwe@octave.org>
parents: 10315
diff changeset
3 Copyright (C) 2009-2011 John W. Eaton
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
4
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
5 This file is part of Octave.
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
6
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
7 Octave is free software; you can redistribute it and/or modify it
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
8 under the terms of the GNU General Public License as published by the
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
9 Free Software Foundation; either version 3 of the License, or (at your
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
10 option) any later version.
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
11
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
12 Octave is distributed in the hope that it will be useful, but WITHOUT
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
15 for more details.
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
16
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
17 You should have received a copy of the GNU General Public License
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
18 along with Octave; see the file COPYING. If not, see
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
19 <http://www.gnu.org/licenses/>.
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
20
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
21 */
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
22
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
23 #ifdef HAVE_CONFIG_H
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
24 #include <config.h>
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
25 #endif
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
26
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
27 #include <cstdlib>
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
28
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
29 #if defined (OCTAVE_USE_WINDOWS_API)
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
30 #include <Windows.h>
8595
dee5d60257e4 Use Carbon framework to determine ScreenSize on Mac.
Thomas Treichl <Thomas.Treichl@gmx.net>
parents: 8578
diff changeset
31 #elif defined (HAVE_FRAMEWORK_CARBON)
dee5d60257e4 Use Carbon framework to determine ScreenSize on Mac.
Thomas Treichl <Thomas.Treichl@gmx.net>
parents: 8578
diff changeset
32 #include <Carbon/Carbon.h>
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
33 #elif defined (HAVE_X_WINDOWS)
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
34 #include <X11/Xlib.h>
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
35 #endif
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
36
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
37 #include "display.h"
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
38 #include "error.h"
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
39
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
40 display_info *display_info::instance = 0;
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
41
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
42 void
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
43 display_info::init (bool query)
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
44 {
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
45 if (query)
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
46 {
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
47 #if defined (OCTAVE_USE_WINDOWS_API)
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
48
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
49 HDC hdc = GetDC (0);
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
50
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
51 if (hdc)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
52 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
53 dp = GetDeviceCaps (hdc, BITSPIXEL);
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
54
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
55 ht = GetDeviceCaps (hdc, VERTRES);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
56 wd = GetDeviceCaps (hdc, HORZRES);
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
57
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
58 double ht_mm = GetDeviceCaps (hdc, VERTSIZE);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
59 double wd_mm = GetDeviceCaps (hdc, HORZSIZE);
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
60
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
61 rx = wd * 25.4 / wd_mm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
62 ry = ht * 25.4 / ht_mm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
63 }
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
64 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
65 warning ("no graphical display found");
8572
e17f262a02cd display.cc: get info for windows and os x systems
John W. Eaton <jwe@octave.org>
parents: 8561
diff changeset
66
8595
dee5d60257e4 Use Carbon framework to determine ScreenSize on Mac.
Thomas Treichl <Thomas.Treichl@gmx.net>
parents: 8578
diff changeset
67 #elif defined (HAVE_FRAMEWORK_CARBON)
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
68
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
69 CGDirectDisplayID display = CGMainDisplayID ();
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
70
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
71 if (display)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
72 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
73 dp = CGDisplayBitsPerPixel (display);
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
74
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
75 ht = CGDisplayPixelsHigh (display);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
76 wd = CGDisplayPixelsWide (display);
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
77
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
78 CGSize sz_mm = CGDisplayScreenSize (display);
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
79
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
80 // On modern Mac systems (>= 10.5) CGSize is a struct keeping 2
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
81 // CGFloat values, but the CGFloat typedef is not present on
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
82 // older systems, so use double instead.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
83 double ht_mm = sz_mm.height;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
84 double wd_mm = sz_mm.width;
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
85
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
86 rx = wd * 25.4 / wd_mm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
87 ry = ht * 25.4 / ht_mm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
88 }
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
89 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
90 warning ("no graphical display found");
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
91
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
92 #elif defined (HAVE_X_WINDOWS)
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
93
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
94 const char *display_name = getenv ("DISPLAY");
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
95
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
96 if (display_name && *display_name)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
97 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
98 Display *display = XOpenDisplay (display_name);
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
99
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
100 if (display)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
101 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
102 Screen *screen = DefaultScreenOfDisplay (display);
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
103
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
104 if (screen)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
105 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
106 dp = DefaultDepthOfScreen (screen);
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
107
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
108 ht = HeightOfScreen (screen);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
109 wd = WidthOfScreen (screen);
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
110
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
111 int screen_number = XScreenNumberOfScreen (screen);
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
112
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
113 double ht_mm = DisplayHeightMM (display, screen_number);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
114 double wd_mm = DisplayWidthMM (display, screen_number);
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
115
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
116 rx = wd * 25.4 / wd_mm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
117 ry = ht * 25.4 / ht_mm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
118 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
119 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
120 warning ("X11 display has no default screen");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
121 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
122 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
123 warning ("unable to open X11 DISPLAY");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
124 }
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
125 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
126 warning ("X11 DISPLAY environment variable not set");
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
127 #else
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
128
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
129 warning ("no graphical display found");
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
130
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
131 #endif
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
132 }
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
133 }
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
134
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
135 bool
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
136 display_info::instance_ok (bool query)
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
137 {
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
138 bool retval = true;
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
139
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
140 if (! instance)
9335
f2d354df53ee new option, --no-window-system
John W. Eaton <jwe@octave.org>
parents: 8642
diff changeset
141 instance = new display_info (query);
8561
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
142
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
143 if (! instance)
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
144 {
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
145 ::error ("unable to create display_info object!");
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
146
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
147 retval = false;
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
148 }
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
149
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
150 return retval;
66165de2cc42 add new files for previous changeset
John W. Eaton <jwe@octave.org>
parents:
diff changeset
151 }