src/common/animatecmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/animatecmn.cpp
   3 // Purpose:     wxAnimation and wxAnimationCtrl
   4 // Author:      Francesco Montorsi
   5 // Modified By:
   6 // Created:     24/09/2006
   7 // Id:          $Id$
   8 // Copyright:   (c) Francesco Montorsi
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12
  13 // ----------------------------------------------------------------------------
  14 // headers
  15 // ----------------------------------------------------------------------------
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #if wxUSE_ANIMATIONCTRL
  21
  22 #include "wx/animate.h"
  23 #include "wx/bitmap.h"
  24 #include "wx/log.h"
  25 #include "wx/brush.h"
  26 #include "wx/image.h"
  27 #include "wx/dcmemory.h"
  28
  29 const wxChar wxAnimationCtrlNameStr[] = wxT("animationctrl");
  30
  31 // global object
  32 wxAnimation wxNullAnimation;
  33
  34 IMPLEMENT_ABSTRACT_CLASS(wxAnimationBase, wxObject)
  35 IMPLEMENT_ABSTRACT_CLASS(wxAnimationCtrlBase, wxControl)
  36
  37
  38 // ----------------------------------------------------------------------------
  39 // wxAnimationCtrlBase
  40 // ----------------------------------------------------------------------------
  41
  42 void wxAnimationCtrlBase::UpdateStaticImage()
  43 {
  44     if (!m_bmpStaticReal.IsOk() || !m_bmpStatic.IsOk())
  45         return;
  46
  47     // if given bitmap is not of the right size, recreate m_bmpStaticReal accordingly
  48     const wxSize &sz = GetClientSize();
  49     if (sz.GetWidth() != m_bmpStaticReal.GetWidth() ||
  50         sz.GetHeight() != m_bmpStaticReal.GetHeight())
  51     {
  52         if (!m_bmpStaticReal.IsOk() ||
  53             m_bmpStaticReal.GetWidth() != sz.GetWidth() ||
  54             m_bmpStaticReal.GetHeight() != sz.GetHeight())
  55         {
  56             // need to (re)create m_bmpStaticReal
  57             if (!m_bmpStaticReal.Create(sz.GetWidth(), sz.GetHeight(),
  58                                         m_bmpStatic.GetDepth()))
  59             {
  60                 wxLogDebug(wxT("Cannot create the static bitmap"));
  61                 m_bmpStatic = wxNullBitmap;
  62                 return;
  63             }
  64         }
  65
  66         if (m_bmpStatic.GetWidth() <= sz.GetWidth() &&
  67             m_bmpStatic.GetHeight() <= sz.GetHeight())
  68         {
  69             // clear the background of m_bmpStaticReal
  70             wxBrush brush(GetBackgroundColour());
  71             wxMemoryDC dc;
  72             dc.SelectObject(m_bmpStaticReal);
  73             dc.SetBackground(brush);
  74             dc.Clear();
  75
  76             // center the user-provided bitmap in m_bmpStaticReal
  77             dc.DrawBitmap(m_bmpStatic,
  78                         (sz.GetWidth()-m_bmpStatic.GetWidth())/2,
  79                         (sz.GetHeight()-m_bmpStatic.GetHeight())/2,
  80                         true /* use mask */ );
  81         }
  82         else
  83         {
  84             // the user-provided bitmap is bigger than our control, strech it
  85             wxImage temp(m_bmpStatic.ConvertToImage());
  86             temp.Rescale(sz.GetWidth(), sz.GetHeight(), wxIMAGE_QUALITY_HIGH);
  87             m_bmpStaticReal = wxBitmap(temp);
  88         }
  89     }
  90 }
  91
  92 void wxAnimationCtrlBase::SetInactiveBitmap(const wxBitmap &bmp)
  93 {
  94     m_bmpStatic = bmp;
  95     m_bmpStaticReal = bmp;
  96
  97     // if not playing, update the control now
  98     // NOTE: DisplayStaticImage() will call UpdateStaticImage automatically
  99     if ( !IsPlaying() )
 100         DisplayStaticImage();
 101 }
 102
 103 #endif      // wxUSE_ANIMATIONCTRL