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 // Copyright:   (c) Francesco Montorsi
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 // ----------------------------------------------------------------------------
  13 // headers
  14 // ----------------------------------------------------------------------------
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_ANIMATIONCTRL
  24
  25 #include "wx/animate.h"
  26 #include "wx/bitmap.h"
  27 #include "wx/log.h"
  28 #include "wx/brush.h"
  29 #include "wx/image.h"
  30 #include "wx/dcmemory.h"
  31
  32 const char wxAnimationCtrlNameStr[] = "animationctrl";
  33
  34 // global object
  35 wxAnimation wxNullAnimation;
  36
  37 IMPLEMENT_ABSTRACT_CLASS(wxAnimationBase, wxObject)
  38 IMPLEMENT_ABSTRACT_CLASS(wxAnimationCtrlBase, wxControl)
  39
  40
  41 // ----------------------------------------------------------------------------
  42 // wxAnimationCtrlBase
  43 // ----------------------------------------------------------------------------
  44
  45 void wxAnimationCtrlBase::UpdateStaticImage()
  46 {
  47     if (!m_bmpStaticReal.IsOk() || !m_bmpStatic.IsOk())
  48         return;
  49
  50     // if given bitmap is not of the right size, recreate m_bmpStaticReal accordingly
  51     const wxSize &sz = GetClientSize();
  52     if (sz.GetWidth() != m_bmpStaticReal.GetWidth() ||
  53         sz.GetHeight() != m_bmpStaticReal.GetHeight())
  54     {
  55         if (!m_bmpStaticReal.IsOk() ||
  56             m_bmpStaticReal.GetWidth() != sz.GetWidth() ||
  57             m_bmpStaticReal.GetHeight() != sz.GetHeight())
  58         {
  59             // need to (re)create m_bmpStaticReal
  60             if (!m_bmpStaticReal.Create(sz.GetWidth(), sz.GetHeight(),
  61                                         m_bmpStatic.GetDepth()))
  62             {
  63                 wxLogDebug(wxT("Cannot create the static bitmap"));
  64                 m_bmpStatic = wxNullBitmap;
  65                 return;
  66             }
  67         }
  68
  69         if (m_bmpStatic.GetWidth() <= sz.GetWidth() &&
  70             m_bmpStatic.GetHeight() <= sz.GetHeight())
  71         {
  72             // clear the background of m_bmpStaticReal
  73             wxBrush brush(GetBackgroundColour());
  74             wxMemoryDC dc;
  75             dc.SelectObject(m_bmpStaticReal);
  76             dc.SetBackground(brush);
  77             dc.Clear();
  78
  79             // center the user-provided bitmap in m_bmpStaticReal
  80             dc.DrawBitmap(m_bmpStatic,
  81                         (sz.GetWidth()-m_bmpStatic.GetWidth())/2,
  82                         (sz.GetHeight()-m_bmpStatic.GetHeight())/2,
  83                         true /* use mask */ );
  84         }
  85         else
  86         {
  87             // the user-provided bitmap is bigger than our control, strech it
  88             wxImage temp(m_bmpStatic.ConvertToImage());
  89             temp.Rescale(sz.GetWidth(), sz.GetHeight(), wxIMAGE_QUALITY_HIGH);
  90             m_bmpStaticReal = wxBitmap(temp);
  91         }
  92     }
  93 }
  94
  95 void wxAnimationCtrlBase::SetInactiveBitmap(const wxBitmap &bmp)
  96 {
  97     m_bmpStatic = bmp;
  98     m_bmpStaticReal = bmp;
  99
 100     // if not playing, update the control now
 101     // NOTE: DisplayStaticImage() will call UpdateStaticImage automatically
 102     if ( !IsPlaying() )
 103         DisplayStaticImage();
 104 }
 105
 106 #endif      // wxUSE_ANIMATIONCTRL