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another segfault fix
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1/////////////////////////////////////////////////////////////////////////////
2// Name: cursor.cpp
3// Purpose:
4// Author: Robert Roebling
5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10
11#ifdef __GNUG__
12#pragma implementation "cursor.h"
13#endif
14
15#include "wx/cursor.h"
16#include "wx/utils.h"
17#include "wx/app.h"
18
19#include <gdk/gdk.h>
20#include <gtk/gtk.h>
21
22//-----------------------------------------------------------------------------
23// idle system
24//-----------------------------------------------------------------------------
25
26extern void wxapp_install_idle_handler();
27extern bool g_isIdle;
28
29//-----------------------------------------------------------------------------
30// wxCursor
31//-----------------------------------------------------------------------------
32
33class wxCursorRefData: public wxObjectRefData
34{
35 public:
36
37 wxCursorRefData();
38 ~wxCursorRefData();
39
40 GdkCursor *m_cursor;
41};
42
43wxCursorRefData::wxCursorRefData()
44{
45 m_cursor = (GdkCursor *) NULL;
46}
47
48wxCursorRefData::~wxCursorRefData()
49{
50 if (m_cursor) gdk_cursor_destroy( m_cursor );
51}
52
53//-----------------------------------------------------------------------------
54
55#define M_CURSORDATA ((wxCursorRefData *)m_refData)
56
57IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
58
59wxCursor::wxCursor()
60{
61}
62
63wxCursor::wxCursor( int cursorId )
64{
65 m_refData = new wxCursorRefData();
66
67 GdkCursorType gdk_cur = GDK_LEFT_PTR;
68 switch (cursorId)
69 {
70 case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break;
71 case wxCURSOR_HAND: gdk_cur = GDK_HAND1; break;
72 case wxCURSOR_CROSS: gdk_cur = GDK_CROSSHAIR; break;
73 case wxCURSOR_SIZEWE: gdk_cur = GDK_SB_H_DOUBLE_ARROW; break;
74 case wxCURSOR_SIZENS: gdk_cur = GDK_SB_V_DOUBLE_ARROW; break;
75 case wxCURSOR_ARROWWAIT:
76 case wxCURSOR_WAIT:
77 case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; break;
78 case wxCURSOR_SIZING: gdk_cur = GDK_SIZING; break;
79 case wxCURSOR_SPRAYCAN: gdk_cur = GDK_SPRAYCAN; break;
80 case wxCURSOR_IBEAM: gdk_cur = GDK_XTERM; break;
81 case wxCURSOR_PENCIL: gdk_cur = GDK_PENCIL; break;
82 case wxCURSOR_NO_ENTRY: gdk_cur = GDK_PIRATE; break;
83 case wxCURSOR_SIZENWSE:
84 case wxCURSOR_SIZENESW: gdk_cur = GDK_FLEUR; break;
85 case wxCURSOR_QUESTION_ARROW: gdk_cur = GDK_QUESTION_ARROW; break;
86 case wxCURSOR_PAINT_BRUSH: gdk_cur = GDK_SPRAYCAN; break;
87 case wxCURSOR_MAGNIFIER: gdk_cur = GDK_PLUS; break;
88 case wxCURSOR_CHAR: gdk_cur = GDK_XTERM; break;
89 case wxCURSOR_LEFT_BUTTON: gdk_cur = GDK_LEFTBUTTON; break;
90 case wxCURSOR_MIDDLE_BUTTON: gdk_cur = GDK_MIDDLEBUTTON; break;
91 case wxCURSOR_RIGHT_BUTTON: gdk_cur = GDK_RIGHTBUTTON; break;
92 case wxCURSOR_BULLSEYE: gdk_cur = GDK_TARGET; break;
93
94 case wxCURSOR_POINT_LEFT: gdk_cur = GDK_SB_LEFT_ARROW; break;
95 case wxCURSOR_POINT_RIGHT: gdk_cur = GDK_SB_RIGHT_ARROW; break;
96/*
97 case wxCURSOR_DOUBLE_ARROW: gdk_cur = GDK_DOUBLE_ARROW; break;
98 case wxCURSOR_CROSS_REVERSE: gdk_cur = GDK_CROSS_REVERSE; break;
99 case wxCURSOR_BASED_ARROW_UP: gdk_cur = GDK_BASED_ARROW_UP; break;
100 case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
101*/
102 default:
103 wxFAIL_MSG(wxT("unsupported cursor type"));
104 // will use the standard one
105
106 case wxCURSOR_ARROW:
107 break;
108 }
109
110 M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
111}
112
113extern GtkWidget *wxGetRootWindow();
114
115wxCursor::wxCursor(const char bits[], int width, int height,
116 int hotSpotX, int hotSpotY,
117 const char maskBits[], wxColour *fg, wxColour *bg)
118{
119 if (!maskBits)
120 maskBits = bits;
121 if (!fg)
122 fg = wxBLACK;
123 if (!bg)
124 bg = wxWHITE;
125 if (hotSpotX < 0 || hotSpotX >= width)
126 hotSpotX = 0;
127 if (hotSpotY < 0 || hotSpotY >= height)
128 hotSpotY = 0;
129
130 GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
131 GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits, width, height);
132
133 m_refData = new wxCursorRefData;
134 M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
135 data, mask, fg->GetColor(), bg->GetColor(),
136 hotSpotX, hotSpotY );
137
138 gdk_bitmap_unref( data );
139 gdk_bitmap_unref( mask );
140}
141
142
143wxCursor::wxCursor( const wxCursor &cursor )
144{
145 Ref( cursor );
146}
147
148wxCursor::~wxCursor()
149{
150}
151
152wxCursor& wxCursor::operator = ( const wxCursor& cursor )
153{
154 if (*this == cursor)
155 return (*this);
156
157 Ref( cursor );
158
159 return *this;
160}
161
162bool wxCursor::operator == ( const wxCursor& cursor ) const
163{
164 return m_refData == cursor.m_refData;
165}
166
167bool wxCursor::operator != ( const wxCursor& cursor ) const
168{
169 return m_refData != cursor.m_refData;
170}
171
172bool wxCursor::Ok() const
173{
174 return (m_refData != NULL);
175}
176
177GdkCursor *wxCursor::GetCursor() const
178{
179 return M_CURSORDATA->m_cursor;
180}
181
182//-----------------------------------------------------------------------------
183// busy cursor routines
184//-----------------------------------------------------------------------------
185
186extern wxCursor g_globalCursor;
187
188static wxCursor gs_savedCursor;
189static int gs_busyCount = 0;
190
191const wxCursor &wxBusyCursor::GetStoredCursor()
192{
193 return gs_savedCursor;
194}
195
196const wxCursor wxBusyCursor::GetBusyCursor()
197{
198 return wxCursor(wxCURSOR_WATCH);
199}
200
201void wxEndBusyCursor()
202{
203 if (--gs_busyCount > 0)
204 return;
205
206 wxSetCursor( gs_savedCursor );
207 gs_savedCursor = wxNullCursor;
208
209 if (wxTheApp)
210 wxTheApp->SendIdleEvents();
211}
212
213void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
214{
215 if (gs_busyCount++ > 0)
216 return;
217
218 wxASSERT_MSG( !gs_savedCursor.Ok(),
219 wxT("forgot to call wxEndBusyCursor, will leak memory") );
220
221 gs_savedCursor = g_globalCursor;
222
223 wxSetCursor( wxCursor(wxCURSOR_WATCH) );
224
225 if (wxTheApp)
226 wxTheApp->SendIdleEvents();
227
228 gdk_flush();
229}
230
231bool wxIsBusy()
232{
233 return gs_busyCount > 0;
234}
235
236void wxSetCursor( const wxCursor& cursor )
237{
238 if (g_isIdle)
239 wxapp_install_idle_handler();
240
241 g_globalCursor = cursor;
242}