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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: splash.cpp
3 // Purpose: wxSplashScreen class
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 28/6/2000
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
13 #pragma implementation "splash.h"
14 #endif
15
16 // For compilers that support precompilation, includes "wx/wx.h".
17 #include "wx/wxprec.h"
18
19 #ifdef __BORLANDC__
20 #pragma hdrstop
21 #endif
22
23 #if wxUSE_SPLASH
24
25 #ifdef __WXGTK20__
26 #include <gtk/gtk.h>
27 #endif
28
29 #ifndef WX_PRECOMP
30 #include "wx/dcmemory.h"
31 #include "wx/dcclient.h"
32 #endif
33
34 #include "wx/splash.h"
35
36
37 /*
38 * wxSplashScreen
39 */
40
41 #define wxSPLASH_TIMER_ID 9999
42
43 IMPLEMENT_DYNAMIC_CLASS(wxSplashScreen, wxFrame);
44
45 BEGIN_EVENT_TABLE(wxSplashScreen, wxFrame)
46 EVT_TIMER(wxSPLASH_TIMER_ID, wxSplashScreen::OnNotify)
47 EVT_CLOSE(wxSplashScreen::OnCloseWindow)
48 END_EVENT_TABLE()
49
50 /* Note that unless we pass a non-default size to the frame, SetClientSize
51 * won't work properly under Windows, and the splash screen frame is sized
52 * slightly too small.
53 */
54
55 wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int milliseconds, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
56 wxFrame(parent, id, wxEmptyString, wxPoint(0,0), wxSize(100, 100), style)
57 {
58 // At least for GTK+ 2.0, this hint is not available.
59 #if defined(__WXGTK20__)
60 #if GTK_CHECK_VERSION(2,2,0)
61 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
62 GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
63 #endif
64 #endif
65
66 m_window = NULL;
67 m_splashStyle = splashStyle;
68 m_milliseconds = milliseconds;
69
70 m_window = new wxSplashScreenWindow(bitmap, this, wxID_ANY, pos, size, wxNO_BORDER);
71
72 SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
73
74 if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
75 CentreOnParent();
76 else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
77 CentreOnScreen();
78
79 if (m_splashStyle & wxSPLASH_TIMEOUT)
80 {
81 m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
82 m_timer.Start(milliseconds, true);
83 }
84
85 Show(true);
86 m_window->SetFocus();
87 #if defined( __WXMSW__ ) || defined(__WXMAC__)
88 Update(); // Without this, you see a blank screen for an instant
89 #else
90 wxYieldIfNeeded(); // Should eliminate this
91 #endif
92 }
93
94 wxSplashScreen::~wxSplashScreen()
95 {
96 m_timer.Stop();
97 }
98
99 void wxSplashScreen::OnNotify(wxTimerEvent& WXUNUSED(event))
100 {
101 Close(true);
102 }
103
104 void wxSplashScreen::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
105 {
106 m_timer.Stop();
107 this->Destroy();
108 }
109
110 /*
111 * wxSplashScreenWindow
112 */
113
114 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
115 #ifdef __WXGTK__
116 EVT_PAINT(wxSplashScreenWindow::OnPaint)
117 #endif
118 EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
119 EVT_CHAR(wxSplashScreenWindow::OnChar)
120 EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
121 END_EVENT_TABLE()
122
123 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
124 wxWindow(parent, id, pos, size, style)
125 {
126 m_bitmap = bitmap;
127
128 #if !defined(__WXGTK__) && wxUSE_PALETTE
129 bool hiColour = (wxDisplayDepth() >= 16) ;
130
131 if (bitmap.GetPalette() && !hiColour)
132 {
133 SetPalette(* bitmap.GetPalette());
134 }
135 #endif
136
137 }
138
139 // VZ: why don't we do it under wxGTK?
140 #if !defined(__WXGTK__) && wxUSE_PALETTE
141 #define USE_PALETTE_IN_SPLASH
142 #endif
143
144 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int WXUNUSED(x), int WXUNUSED(y))
145 {
146 wxMemoryDC dcMem;
147
148 #ifdef USE_PALETTE_IN_SPLASH
149 bool hiColour = (wxDisplayDepth() >= 16) ;
150
151 if (bitmap.GetPalette() && !hiColour)
152 {
153 dcMem.SetPalette(* bitmap.GetPalette());
154 }
155 #endif // USE_PALETTE_IN_SPLASH
156
157 dcMem.SelectObject(bitmap);
158 dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
159 dcMem.SelectObject(wxNullBitmap);
160
161 #ifdef USE_PALETTE_IN_SPLASH
162 if (bitmap.GetPalette() && !hiColour)
163 {
164 dcMem.SetPalette(wxNullPalette);
165 }
166 #endif // USE_PALETTE_IN_SPLASH
167 }
168
169 void wxSplashScreenWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
170 {
171 wxPaintDC dc(this);
172 if (m_bitmap.Ok())
173 wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
174 }
175
176 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
177 {
178 if (event.GetDC())
179 {
180 if (m_bitmap.Ok())
181 {
182 wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
183 }
184 }
185 else
186 {
187 wxClientDC dc(this);
188 if (m_bitmap.Ok())
189 {
190 wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
191 }
192 }
193 }
194
195 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
196 {
197 if (event.LeftDown() || event.RightDown())
198 GetParent()->Close(true);
199 }
200
201 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
202 {
203 GetParent()->Close(true);
204 }
205
206 #endif // wxUSE_SPLASH