src/generic/splash.cpp

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