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 #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__) && GTK_CHECK_VERSION(2,2,0)
  60     gtk_window_set_type_hint(GTK_WINDOW(m_widget),
  61                              GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
  62 #endif
  63
  64     m_window = NULL;
  65     m_splashStyle = splashStyle;
  66     m_milliseconds = milliseconds;
  67
  68     m_window = new wxSplashScreenWindow(bitmap, this, wxID_ANY, pos, size, wxNO_BORDER);
  69
  70     SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
  71
  72     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  73         CentreOnParent();
  74     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  75         CentreOnScreen();
  76
  77     if (m_splashStyle & wxSPLASH_TIMEOUT)
  78     {
  79         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  80         m_timer.Start(milliseconds, true);
  81     }
  82
  83     Show(true);
  84     m_window->SetFocus();
  85 #if defined( __WXMSW__ ) || defined(__WXMAC__)
  86     Update(); // Without this, you see a blank screen for an instant
  87 #else
  88     wxYieldIfNeeded(); // Should eliminate this
  89 #endif
  90 }
  91
  92 wxSplashScreen::~wxSplashScreen()
  93 {
  94     m_timer.Stop();
  95 }
  96
  97 void wxSplashScreen::OnNotify(wxTimerEvent& WXUNUSED(event))
  98 {
  99     Close(true);
 100 }
 101
 102 void wxSplashScreen::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 103 {
 104     m_timer.Stop();
 105     this->Destroy();
 106 }
 107
 108 /*
 109  * wxSplashScreenWindow
 110  */
 111
 112 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
 113 #ifdef __WXGTK__
 114     EVT_PAINT(wxSplashScreenWindow::OnPaint)
 115 #endif
 116     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
 117     EVT_CHAR(wxSplashScreenWindow::OnChar)
 118     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
 119 END_EVENT_TABLE()
 120
 121 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
 122     wxWindow(parent, id, pos, size, style)
 123 {
 124     m_bitmap = bitmap;
 125
 126 #if !defined(__WXGTK__) && wxUSE_PALETTE
 127     bool hiColour = (wxDisplayDepth() >= 16) ;
 128
 129     if (bitmap.GetPalette() && !hiColour)
 130     {
 131         SetPalette(* bitmap.GetPalette());
 132     }
 133 #endif
 134
 135 }
 136
 137 // VZ: why don't we do it under wxGTK?
 138 #if !defined(__WXGTK__) && wxUSE_PALETTE
 139     #define USE_PALETTE_IN_SPLASH
 140 #endif
 141
 142 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int WXUNUSED(x), int WXUNUSED(y))
 143 {
 144     wxMemoryDC dcMem;
 145
 146 #ifdef USE_PALETTE_IN_SPLASH
 147     bool hiColour = (wxDisplayDepth() >= 16) ;
 148
 149     if (bitmap.GetPalette() && !hiColour)
 150     {
 151         dcMem.SetPalette(* bitmap.GetPalette());
 152     }
 153 #endif // USE_PALETTE_IN_SPLASH
 154
 155     dcMem.SelectObject(bitmap);
 156     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 157     dcMem.SelectObject(wxNullBitmap);
 158
 159 #ifdef USE_PALETTE_IN_SPLASH
 160     if (bitmap.GetPalette() && !hiColour)
 161     {
 162         dcMem.SetPalette(wxNullPalette);
 163     }
 164 #endif // USE_PALETTE_IN_SPLASH
 165 }
 166
 167 void wxSplashScreenWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 168 {
 169     wxPaintDC dc(this);
 170     if (m_bitmap.Ok())
 171         wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 172 }
 173
 174 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 175 {
 176     if (event.GetDC())
 177     {
 178         if (m_bitmap.Ok())
 179         {
 180             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 181         }
 182     }
 183     else
 184     {
 185         wxClientDC dc(this);
 186         if (m_bitmap.Ok())
 187         {
 188             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 189         }
 190     }
 191 }
 192
 193 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 194 {
 195     if (event.LeftDown() || event.RightDown())
 196         GetParent()->Close(true);
 197 }
 198
 199 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
 200 {
 201     GetParent()->Close(true);
 202 }
 203
 204 #endif // wxUSE_SPLASH