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     // For some reason, we need to make the client size a couple of pixels
  50     // bigger for all of the bitmap to show.
  51 #ifdef __WXMSW__
  52     int fudge = 2;
  53 #else
  54     int fudge = 0;
  55 #endif
  56     SetClientSize(bitmap.GetWidth()+fudge, bitmap.GetHeight()+fudge);
  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& event)
  80 {
  81     m_timer.Stop();
  82     this->Destroy();
  83 }
  84
  85 void wxSplashScreen::OnCloseWindow(wxCloseEvent& event)
  86 {
  87     m_timer.Stop();
  88     this->Destroy();
  89 }
  90
  91 /*
  92  * wxSplashScreenWindow
  93  */
  94
  95 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
  96     //EVT_PAINT(wxSplashScreenWindow::OnPaint)
  97     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
  98     EVT_CHAR(wxSplashScreenWindow::OnChar)
  99     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
 100 END_EVENT_TABLE()
 101
 102 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
 103     wxWindow(parent, id, pos, size, style)
 104 {
 105     m_bitmap = bitmap;
 106 }
 107
 108 void wxSplashScreenWindow::OnPaint(wxPaintEvent& event)
 109 {
 110     wxPaintDC dc(this);
 111     if (m_bitmap.Ok())
 112         dc.DrawBitmap(m_bitmap, 0, 0);
 113 }
 114
 115 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int x, int y)
 116 {
 117     wxMemoryDC dcMem;
 118
 119 #ifndef __WXGTK__
 120     bool hiColour = (wxDisplayDepth() >= 16) ;
 121
 122     if (bitmap.GetPalette() && !hiColour)
 123     {
 124         dc.SetPalette(* bitmap.GetPalette());
 125         dcMem.SetPalette(* bitmap.GetPalette());
 126     }
 127 #endif
 128
 129     dcMem.SelectObject(bitmap);
 130     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 131     dcMem.SelectObject(wxNullBitmap);
 132
 133 #ifndef __WXGTK__
 134     if (bitmap.GetPalette() && !hiColour)
 135     {
 136         dc.SetPalette(wxNullPalette);
 137         dcMem.SetPalette(wxNullPalette);
 138     }
 139 #endif
 140 }
 141
 142 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 143 {
 144     if (event.GetDC())
 145     {
 146         if (m_bitmap.Ok())
 147         {
 148             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 149         }
 150     }
 151     else
 152     {
 153         wxClientDC dc(this);
 154         if (m_bitmap.Ok())
 155         {
 156             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 157         }
 158     }
 159 }
 160
 161 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 162 {
 163     if (event.LeftDown() || event.RightDown())
 164         GetParent()->Close(TRUE);
 165 }
 166
 167 void wxSplashScreenWindow::OnChar(wxKeyEvent& event)
 168 {
 169     GetParent()->Close(TRUE);
 170 }
 171