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 #ifdef __WXGTK20__
  59     gtk_window_set_type_hint(GTK_WINDOW(m_widget),
  60                              GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
  61 #endif
  62
  63     m_window = NULL;
  64     m_splashStyle = splashStyle;
  65     m_milliseconds = milliseconds;
  66
  67     m_window = new wxSplashScreenWindow(bitmap, this, wxID_ANY, pos, size, wxNO_BORDER);
  68
  69     SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
  70
  71     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  72         CentreOnParent();
  73     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  74         CentreOnScreen();
  75
  76     if (m_splashStyle & wxSPLASH_TIMEOUT)
  77     {
  78         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  79         m_timer.Start(milliseconds, true);
  80     }
  81
  82     Show(true);
  83     m_window->SetFocus();
  84 #if defined( __WXMSW__ ) || defined(__WXMAC__)
  85     Update(); // Without this, you see a blank screen for an instant
  86 #else
  87     wxYieldIfNeeded(); // Should eliminate this
  88 #endif
  89 }
  90
  91 wxSplashScreen::~wxSplashScreen()
  92 {
  93     m_timer.Stop();
  94 }
  95
  96 void wxSplashScreen::OnNotify(wxTimerEvent& WXUNUSED(event))
  97 {
  98     Close(true);
  99 }
 100
 101 void wxSplashScreen::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 102 {
 103     m_timer.Stop();
 104     this->Destroy();
 105 }
 106
 107 /*
 108  * wxSplashScreenWindow
 109  */
 110
 111 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
 112 #ifdef __WXGTK__
 113     EVT_PAINT(wxSplashScreenWindow::OnPaint)
 114 #endif
 115     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
 116     EVT_CHAR(wxSplashScreenWindow::OnChar)
 117     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
 118 END_EVENT_TABLE()
 119
 120 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
 121     wxWindow(parent, id, pos, size, style)
 122 {
 123     m_bitmap = bitmap;
 124
 125 #if !defined(__WXGTK__) && wxUSE_PALETTE
 126     bool hiColour = (wxDisplayDepth() >= 16) ;
 127
 128     if (bitmap.GetPalette() && !hiColour)
 129     {
 130         SetPalette(* bitmap.GetPalette());
 131     }
 132 #endif
 133
 134 }
 135
 136 // VZ: why don't we do it under wxGTK?
 137 #if !defined(__WXGTK__) && wxUSE_PALETTE
 138     #define USE_PALETTE_IN_SPLASH
 139 #endif
 140
 141 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int WXUNUSED(x), int WXUNUSED(y))
 142 {
 143     wxMemoryDC dcMem;
 144
 145 #ifdef USE_PALETTE_IN_SPLASH
 146     bool hiColour = (wxDisplayDepth() >= 16) ;
 147
 148     if (bitmap.GetPalette() && !hiColour)
 149     {
 150         dcMem.SetPalette(* bitmap.GetPalette());
 151     }
 152 #endif // USE_PALETTE_IN_SPLASH
 153
 154     dcMem.SelectObject(bitmap);
 155     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 156     dcMem.SelectObject(wxNullBitmap);
 157
 158 #ifdef USE_PALETTE_IN_SPLASH
 159     if (bitmap.GetPalette() && !hiColour)
 160     {
 161         dcMem.SetPalette(wxNullPalette);
 162     }
 163 #endif // USE_PALETTE_IN_SPLASH
 164 }
 165
 166 void wxSplashScreenWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 167 {
 168     wxPaintDC dc(this);
 169     if (m_bitmap.Ok())
 170         wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 171 }
 172
 173 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 174 {
 175     if (event.GetDC())
 176     {
 177         if (m_bitmap.Ok())
 178         {
 179             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 180         }
 181     }
 182     else
 183     {
 184         wxClientDC dc(this);
 185         if (m_bitmap.Ok())
 186         {
 187             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 188         }
 189     }
 190 }
 191
 192 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 193 {
 194     if (event.LeftDown() || event.RightDown())
 195         GetParent()->Close(true);
 196 }
 197
 198 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
 199 {
 200     GetParent()->Close(true);
 201 }
 202
 203 #endif // wxUSE_SPLASH