src/generic/splash.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/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 #include "wx/splash.h"
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/dcmemory.h"
  29     #include "wx/dcclient.h"
  30 #endif
  31
  32
  33 // ----------------------------------------------------------------------------
  34 // wxSplashScreen
  35 // ----------------------------------------------------------------------------
  36
  37 #define wxSPLASH_TIMER_ID       9999
  38
  39 IMPLEMENT_DYNAMIC_CLASS(wxSplashScreen, wxFrame)
  40 BEGIN_EVENT_TABLE(wxSplashScreen, wxFrame)
  41     EVT_TIMER(wxSPLASH_TIMER_ID, wxSplashScreen::OnNotify)
  42     EVT_CLOSE(wxSplashScreen::OnCloseWindow)
  43 END_EVENT_TABLE()
  44
  45 /* Note that unless we pass a non-default size to the frame, SetClientSize
  46  * won't work properly under Windows, and the splash screen frame is sized
  47  * slightly too small.
  48  */
  49
  50 wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int milliseconds,
  51                                wxWindow* parent, wxWindowID id, const wxPoint& pos,
  52                                const wxSize& size, long style)
  53     : wxFrame(parent, id, wxEmptyString, wxPoint(0,0), wxSize(100, 100), style)
  54 {
  55 #if defined(__WXGTK20__)
  56     gtk_window_set_type_hint(GTK_WINDOW(m_widget),
  57                              GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
  58 #endif
  59
  60     m_window = NULL;
  61     m_splashStyle = splashStyle;
  62     m_milliseconds = milliseconds;
  63
  64     m_window = new wxSplashScreenWindow(bitmap, this, wxID_ANY, pos, size, wxNO_BORDER);
  65
  66     SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
  67
  68     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  69         CentreOnParent();
  70     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  71         CentreOnScreen();
  72
  73     if (m_splashStyle & wxSPLASH_TIMEOUT)
  74     {
  75         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  76         m_timer.Start(milliseconds, true);
  77     }
  78
  79     Show(true);
  80     m_window->SetFocus();
  81 #if defined( __WXMSW__ ) || defined(__WXMAC__)
  82     Update(); // Without this, you see a blank screen for an instant
  83 #elif defined(__WXGTK20__)
  84     // we don't need to do anything at least on wxGTK with GTK+ 2.12.9
  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,
 120                                            wxWindowID id, const wxPoint& pos,
 121                                            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 // 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.SelectObjectAsSource(bitmap);
 155     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), &dcMem, 0, 0, wxCOPY,
 156             true /* use mask */);
 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() && m_bitmap.Ok())
 177     {
 178         wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 179     }
 180     else
 181     {
 182         wxClientDC dc(this);
 183         if (m_bitmap.Ok())
 184             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 185     }
 186 }
 187
 188 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 189 {
 190     if (event.LeftDown() || event.RightDown())
 191         GetParent()->Close(true);
 192     else
 193         event.Skip();
 194 }
 195
 196 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
 197 {
 198     GetParent()->Close(true);
 199 }
 200
 201 #endif // wxUSE_SPLASH