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 #ifndef WX_PRECOMP
  24 #include "wx/wx.h"
  25 #endif
  26
  27 #include "wx/splash.h"
  28
  29 /*
  30  * wxSplashScreen
  31  */
  32
  33 #define wxSPLASH_TIMER_ID 9999
  34
  35 BEGIN_EVENT_TABLE(wxSplashScreen, wxFrame)
  36     EVT_TIMER(wxSPLASH_TIMER_ID, wxSplashScreen::OnNotify)
  37     EVT_CLOSE(wxSplashScreen::OnCloseWindow)
  38 END_EVENT_TABLE()
  39
  40 wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int milliseconds, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
  41     wxFrame(parent, id, wxEmptyString, pos, size, style)
  42 {
  43     m_window = NULL;
  44     m_splashStyle = splashStyle;
  45     m_milliseconds = milliseconds;
  46
  47     m_window = new wxSplashScreenWindow(bitmap, this, -1, pos, size, wxNO_BORDER);
  48
  49     SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
  50
  51     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  52         CentreOnParent();
  53     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  54         CentreOnScreen();
  55
  56     if (m_splashStyle & wxSPLASH_TIMEOUT)
  57     {
  58         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  59         m_timer.Start(milliseconds, TRUE);
  60     }
  61
  62     Show(TRUE);
  63     m_window->SetFocus();
  64     wxYield(); // Without this, you see a blank screen for an instant
  65 }
  66
  67 wxSplashScreen::~wxSplashScreen()
  68 {
  69     m_timer.Stop();
  70 }
  71
  72 void wxSplashScreen::OnNotify(wxTimerEvent& event)
  73 {
  74     m_timer.Stop();
  75     this->Destroy();
  76 }
  77
  78 void wxSplashScreen::OnCloseWindow(wxCloseEvent& event)
  79 {
  80     m_timer.Stop();
  81     this->Destroy();
  82 }
  83
  84 /*
  85  * wxSplashScreenWindow
  86  */
  87
  88 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
  89     //EVT_PAINT(wxSplashScreenWindow::OnPaint)
  90     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
  91     EVT_CHAR(wxSplashScreenWindow::OnChar)
  92     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
  93 END_EVENT_TABLE()
  94
  95 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
  96     wxWindow(parent, id, pos, size, style)
  97 {
  98     m_bitmap = bitmap;
  99 }
 100
 101 void wxSplashScreenWindow::OnPaint(wxPaintEvent& event)
 102 {
 103     wxPaintDC dc(this);
 104     if (m_bitmap.Ok())
 105         dc.DrawBitmap(m_bitmap, 0, 0);
 106 }
 107
 108 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int x, int y)
 109 {
 110     wxMemoryDC dcMem;
 111
 112     bool hiColour = (wxDisplayDepth() >= 16) ;
 113
 114     if (bitmap.GetPalette() && !hiColour)
 115     {
 116         dc.SetPalette(* bitmap.GetPalette());
 117         dcMem.SetPalette(* bitmap.GetPalette());
 118     }
 119     dcMem.SelectObject(bitmap);
 120     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 121     dcMem.SelectObject(wxNullBitmap);
 122     if (bitmap.GetPalette() && !hiColour)
 123     {
 124         dc.SetPalette(wxNullPalette);
 125         dcMem.SetPalette(wxNullPalette);
 126     }
 127 }
 128
 129 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 130 {
 131     if (event.GetDC())
 132     {
 133         if (m_bitmap.Ok())
 134         {
 135             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 136         }
 137     }
 138     else
 139     {
 140         wxClientDC dc(this);
 141         if (m_bitmap.Ok())
 142         {
 143             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 144         }
 145     }
 146 }
 147
 148 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 149 {
 150     if (event.LeftDown() || event.RightDown())
 151         GetParent()->Close(TRUE);
 152 }
 153
 154 void wxSplashScreenWindow::OnChar(wxKeyEvent& event)
 155 {
 156     GetParent()->Close(TRUE);
 157 }
 158