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 #endif
  27
  28 #include "wx/splash.h"
  29
  30 /*
  31  * wxSplashScreen
  32  */
  33
  34 #define wxSPLASH_TIMER_ID 9999
  35
  36 BEGIN_EVENT_TABLE(wxSplashScreen, wxFrame)
  37     EVT_TIMER(wxSPLASH_TIMER_ID, wxSplashScreen::OnNotify)
  38     EVT_CLOSE(wxSplashScreen::OnCloseWindow)
  39 END_EVENT_TABLE()
  40
  41 wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int milliseconds, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
  42     wxFrame(parent, id, wxEmptyString, pos, size, style)
  43 {
  44     m_window = NULL;
  45     m_splashStyle = splashStyle;
  46     m_milliseconds = milliseconds;
  47
  48     m_window = new wxSplashScreenWindow(bitmap, this, -1, pos, size, wxNO_BORDER);
  49
  50     // For some reason, we need to make the client size a couple of pixels
  51     // bigger for all of the bitmap to show.
  52     // Or do we?
  53 #ifdef __WXMSW__
  54     int fudge = 0;
  55 #else
  56     int fudge = 0;
  57 #endif
  58     SetClientSize(bitmap.GetWidth()+fudge, bitmap.GetHeight()+fudge);
  59
  60     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  61         CentreOnParent();
  62     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  63         CentreOnScreen();
  64
  65     if (m_splashStyle & wxSPLASH_TIMEOUT)
  66     {
  67         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  68         m_timer.Start(milliseconds, TRUE);
  69     }
  70
  71     Show(TRUE);
  72     m_window->SetFocus();
  73     wxYield(); // Without this, you see a blank screen for an instant
  74 }
  75
  76 wxSplashScreen::~wxSplashScreen()
  77 {
  78     m_timer.Stop();
  79 }
  80
  81 void wxSplashScreen::OnNotify(wxTimerEvent& WXUNUSED(event))
  82 {
  83     Close(TRUE);
  84 }
  85
  86 void wxSplashScreen::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
  87 {
  88     m_timer.Stop();
  89     this->Destroy();
  90 }
  91
  92 /*
  93  * wxSplashScreenWindow
  94  */
  95
  96 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
  97     //EVT_PAINT(wxSplashScreenWindow::OnPaint)
  98     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
  99     EVT_CHAR(wxSplashScreenWindow::OnChar)
 100     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
 101 END_EVENT_TABLE()
 102
 103 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
 104     wxWindow(parent, id, pos, size, style)
 105 {
 106     m_bitmap = bitmap;
 107 }
 108
 109 void wxSplashScreenWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 110 {
 111     wxPaintDC dc(this);
 112     if (m_bitmap.Ok())
 113         dc.DrawBitmap(m_bitmap, 0, 0);
 114 }
 115
 116 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int WXUNUSED(x), int WXUNUSED(y))
 117 {
 118     wxMemoryDC dcMem;
 119
 120 #ifndef __WXGTK__
 121     bool hiColour = (wxDisplayDepth() >= 16) ;
 122
 123     if (bitmap.GetPalette() && !hiColour)
 124     {
 125         dc.SetPalette(* bitmap.GetPalette());
 126         dcMem.SetPalette(* bitmap.GetPalette());
 127     }
 128 #endif
 129
 130     dcMem.SelectObject(bitmap);
 131     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 132     dcMem.SelectObject(wxNullBitmap);
 133
 134 #ifndef __WXGTK__
 135     if (bitmap.GetPalette() && !hiColour)
 136     {
 137         dc.SetPalette(wxNullPalette);
 138         dcMem.SetPalette(wxNullPalette);
 139     }
 140 #endif
 141 }
 142
 143 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 144 {
 145     if (event.GetDC())
 146     {
 147         if (m_bitmap.Ok())
 148         {
 149             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 150         }
 151     }
 152     else
 153     {
 154         wxClientDC dc(this);
 155         if (m_bitmap.Ok())
 156         {
 157             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 158         }
 159     }
 160 }
 161
 162 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 163 {
 164     if (event.LeftDown() || event.RightDown())
 165         GetParent()->Close(TRUE);
 166 }
 167
 168 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
 169 {
 170     GetParent()->Close(TRUE);
 171 }
 172
 173 #endif // wxUSE_SPLASH