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