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added missing return on error
[wxWidgets.git] / src / gtk / utilsgtk.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: utils.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #include "wx/utils.h"
11 #include "wx/string.h"
12
13 #include "wx/intl.h"
14 #include "wx/log.h"
15
16 #include "wx/process.h"
17
18 #include "wx/unix/execute.h"
19
20 #include <stdarg.h>
21 #include <string.h>
22 #include <sys/stat.h>
23 #include <sys/types.h>
24 #include <unistd.h>
25
26 #include "glib.h"
27 #include "gdk/gdk.h"
28 #include "gtk/gtk.h"
29 #ifndef __WXGTK20__
30 #include "gtk/gtkfeatures.h"
31 #endif
32 #include "gdk/gdkx.h"
33
34 #ifdef HAVE_X11_XKBLIB_H
35 /* under HP-UX and Solaris 2.6, at least, XKBlib.h defines structures with
36 * field named "explicit" - which is, of course, an error for a C++
37 * compiler. To be on the safe side, just redefine it everywhere. */
38 #define explicit __wx_explicit
39
40 #include "X11/XKBlib.h"
41
42 #undef explicit
43 #endif // HAVE_X11_XKBLIB_H
44
45 //-----------------------------------------------------------------------------
46 // data
47 //-----------------------------------------------------------------------------
48
49 extern GtkWidget *wxGetRootWindow();
50
51 //----------------------------------------------------------------------------
52 // misc.
53 //----------------------------------------------------------------------------
54
55 void wxBell()
56 {
57 gdk_beep();
58 }
59
60 /* Don't synthesize KeyUp events holding down a key and producing
61 KeyDown events with autorepeat. */
62 #ifdef HAVE_X11_XKBLIB_H
63 bool wxSetDetectableAutoRepeat( bool flag )
64 {
65 Bool result;
66 XkbSetDetectableAutoRepeat( GDK_DISPLAY(), flag, &result );
67 return result; /* TRUE if keyboard hardware supports this mode */
68 }
69 #else
70 bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
71 {
72 return FALSE;
73 }
74 #endif
75
76 // ----------------------------------------------------------------------------
77 // display characterstics
78 // ----------------------------------------------------------------------------
79
80 void *wxGetDisplay()
81 {
82 return GDK_DISPLAY();
83 }
84
85 void wxDisplaySize( int *width, int *height )
86 {
87 if (width) *width = gdk_screen_width();
88 if (height) *height = gdk_screen_height();
89 }
90
91 void wxDisplaySizeMM( int *width, int *height )
92 {
93 if (width) *width = gdk_screen_width_mm();
94 if (height) *height = gdk_screen_height_mm();
95 }
96
97 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
98 {
99 // This is supposed to return desktop dimensions minus any window
100 // manager panels, menus, taskbars, etc. If there is a way to do that
101 // for this platform please fix this function, otherwise it defaults
102 // to the entire desktop.
103 if (x) *x = 0;
104 if (y) *y = 0;
105 wxDisplaySize(width, height);
106 }
107
108 void wxGetMousePosition( int* x, int* y )
109 {
110 gdk_window_get_pointer( (GdkWindow*) NULL, x, y, (GdkModifierType*) NULL );
111 }
112
113 bool wxColourDisplay()
114 {
115 return TRUE;
116 }
117
118 int wxDisplayDepth()
119 {
120 return gdk_window_get_visual( wxGetRootWindow()->window )->depth;
121 }
122
123 int wxGetOsVersion(int *majorVsn, int *minorVsn)
124 {
125 if (majorVsn) *majorVsn = GTK_MAJOR_VERSION;
126 if (minorVsn) *minorVsn = GTK_MINOR_VERSION;
127
128 return wxGTK;
129 }
130
131 wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
132 {
133 return wxGenericFindWindowAtPoint(pt);
134 }
135
136
137 // ----------------------------------------------------------------------------
138 // subprocess routines
139 // ----------------------------------------------------------------------------
140
141 static void GTK_EndProcessDetector(gpointer data, gint source,
142 GdkInputCondition WXUNUSED(condition) )
143 {
144 wxEndProcessData *proc_data = (wxEndProcessData *)data;
145 close(source);
146 gdk_input_remove(proc_data->tag);
147
148 // This has to come after gdk_input_remove() or we will
149 // occasionally receive multiple callbacks with corrupt data
150 // pointers. (KB)
151 wxHandleProcessTermination(proc_data);
152 }
153
154 int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
155 {
156 int tag = gdk_input_add(fd,
157 GDK_INPUT_READ,
158 GTK_EndProcessDetector,
159 (gpointer)proc_data);
160
161 return tag;
162 }
163