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__)
  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