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 #ifdef __GNUG__
  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 #ifndef WX_PRECOMP
  26 #include "wx/dcmemory.h"
  27 #endif
  28
  29 #include "wx/splash.h"
  30
  31 /*
  32  * wxSplashScreen
  33  */
  34
  35 #define wxSPLASH_TIMER_ID 9999
  36
  37 BEGIN_EVENT_TABLE(wxSplashScreen, wxFrame)
  38     EVT_TIMER(wxSPLASH_TIMER_ID, wxSplashScreen::OnNotify)
  39     EVT_CLOSE(wxSplashScreen::OnCloseWindow)
  40 END_EVENT_TABLE()
  41
  42 /* Note that unless we pass a non-default size to the frame, SetClientSize
  43  * won't work properly under Windows, and the splash screen frame is sized
  44  * slightly too small.
  45  */
  46
  47 wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int milliseconds, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
  48     wxFrame(parent, id, wxEmptyString, wxPoint(0, 0), wxSize(100, 100), style)
  49 {
  50     m_window = NULL;
  51     m_splashStyle = splashStyle;
  52     m_milliseconds = milliseconds;
  53
  54     m_window = new wxSplashScreenWindow(bitmap, this, -1, pos, size, wxNO_BORDER);
  55
  56     SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
  57
  58     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  59         CentreOnParent();
  60     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  61         CentreOnScreen();
  62
  63     if (m_splashStyle & wxSPLASH_TIMEOUT)
  64     {
  65         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  66         m_timer.Start(milliseconds, TRUE);
  67     }
  68
  69     Show(TRUE);
  70     m_window->SetFocus();
  71     wxYield(); // Without this, you see a blank screen for an instant
  72 }
  73
  74 wxSplashScreen::~wxSplashScreen()
  75 {
  76     m_timer.Stop();
  77 }
  78
  79 void wxSplashScreen::OnNotify(wxTimerEvent& WXUNUSED(event))
  80 {
  81     Close(TRUE);
  82 }
  83
  84 void wxSplashScreen::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
  85 {
  86     m_timer.Stop();
  87     this->Destroy();
  88 }
  89
  90 /*
  91  * wxSplashScreenWindow
  92  */
  93
  94 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
  95     //EVT_PAINT(wxSplashScreenWindow::OnPaint)
  96     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
  97     EVT_CHAR(wxSplashScreenWindow::OnChar)
  98     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
  99 END_EVENT_TABLE()
 100
 101 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
 102     wxWindow(parent, id, pos, size, style)
 103 {
 104     m_bitmap = bitmap;
 105 }
 106
 107 void wxSplashScreenWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 108 {
 109     wxPaintDC dc(this);
 110     if (m_bitmap.Ok())
 111         dc.DrawBitmap(m_bitmap, 0, 0);
 112 }
 113
 114 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int WXUNUSED(x), int WXUNUSED(y))
 115 {
 116     wxMemoryDC dcMem;
 117
 118 #ifndef __WXGTK__
 119     bool hiColour = (wxDisplayDepth() >= 16) ;
 120
 121     if (bitmap.GetPalette() && !hiColour)
 122     {
 123         dc.SetPalette(* bitmap.GetPalette());
 124         dcMem.SetPalette(* bitmap.GetPalette());
 125     }
 126 #endif
 127
 128     dcMem.SelectObject(bitmap);
 129     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 130     dcMem.SelectObject(wxNullBitmap);
 131
 132 #ifndef __WXGTK__
 133     if (bitmap.GetPalette() && !hiColour)
 134     {
 135         dc.SetPalette(wxNullPalette);
 136         dcMem.SetPalette(wxNullPalette);
 137     }
 138 #endif
 139 }
 140
 141 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 142 {
 143     if (event.GetDC())
 144     {
 145         if (m_bitmap.Ok())
 146         {
 147             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 148         }
 149     }
 150     else
 151     {
 152         wxClientDC dc(this);
 153         if (m_bitmap.Ok())
 154         {
 155             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 156         }
 157     }
 158 }
 159
 160 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 161 {
 162     if (event.LeftDown() || event.RightDown())
 163         GetParent()->Close(TRUE);
 164 }
 165
 166 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
 167 {
 168     GetParent()->Close(TRUE);
 169 }
 170
 171 #endif // wxUSE_SPLASH