contrib/src/gizmos/statpict.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statpict.cpp
   3 // Purpose:     wxStaticPicture
   4 // Author:      Wade Brainerd (wadeb@wadeb.com)
   5 // Modified by:
   6 // Created:     2003-05-01
   7 // RCS-ID:
   8 // Copyright:   (c) Wade Brainerd
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13 #include "wx/defs.h"
  14
  15 #include "wx/gizmos/statpict.h"
  16 #include "wx/dcclient.h"
  17
  18 IMPLEMENT_DYNAMIC_CLASS(wxStaticPicture, wxControl)
  19 WXDLLIMPEXP_GIZMOS const wxChar * wxStaticPictureNameStr = wxT("staticPicture");
  20
  21 /*
  22  * wxStaticPicture
  23  */
  24
  25 BEGIN_EVENT_TABLE(wxStaticPicture, wxControl)
  26     EVT_PAINT(wxStaticPicture::OnPaint)
  27 END_EVENT_TABLE()
  28
  29 bool wxStaticPicture::Create(wxWindow *parent, wxWindowID id,
  30            const wxBitmap& bitmap,
  31            const wxPoint& pos,
  32            const wxSize& s,
  33            long style,
  34            const wxString& name)
  35 {
  36     SetName(name);
  37
  38     wxSize size = s ;
  39     if ( bitmap.Ok() )
  40     {
  41         if ( size.x == wxDefaultCoord )
  42             size.x = bitmap.GetWidth() ;
  43         if ( size.y == wxDefaultCoord )
  44             size.y = bitmap.GetHeight() ;
  45     }
  46
  47     m_backgroundColour = parent->GetBackgroundColour() ;
  48     m_foregroundColour = parent->GetForegroundColour() ;
  49
  50     Bitmap = bitmap;
  51     Align = 0;
  52     Scale = 0;
  53     ScaleX = ScaleY = 1;
  54
  55 #ifndef __WXMSW__
  56     LastScaleX = LastScaleY = -1;
  57     if ( Bitmap.Ok() )
  58         OriginalImage = Bitmap.ConvertToImage();
  59 #endif
  60
  61     if ( id == wxID_ANY )
  62         m_windowId = (int)NewControlId();
  63     else
  64         m_windowId = id;
  65
  66     m_windowStyle = style;
  67
  68     bool ret = wxControl::Create( parent, id, pos, size, style, wxDefaultValidator, name );
  69
  70     SetBestSize( size ) ;
  71
  72     return ret;
  73 }
  74
  75 void wxStaticPicture::SetBitmap( const wxBitmap& bmp )
  76 {
  77     Bitmap = bmp;
  78 #ifndef __WXMSW__
  79     if ( Bitmap.Ok() )
  80         OriginalImage = Bitmap.ConvertToImage();
  81     LastScaleX = LastScaleY = -1;
  82 #endif
  83 }
  84
  85 void wxStaticPicture::OnPaint(wxPaintEvent& WXUNUSED(event))
  86 {
  87     if ( !Bitmap.Ok() )
  88         return;
  89
  90     wxPaintDC dc( this );
  91     PrepareDC( dc );
  92
  93     wxSize sz = GetSize();
  94     wxSize bmpsz( Bitmap.GetWidth(), Bitmap.GetHeight() );
  95     float sx = 1.0f, sy = 1.0f;
  96
  97     if ( Scale & wxSCALE_UNIFORM )
  98     {
  99         float _sx = (float)sz.GetWidth() / (float)bmpsz.GetWidth();
 100         float _sy = (float)sz.GetHeight() / (float)bmpsz.GetHeight();
 101         sx = sy = _sx < _sy ? _sx : _sy;
 102     }
 103     else
 104     if ( Scale & wxSCALE_CUSTOM )
 105     {
 106         sx = ScaleX;
 107         sy = ScaleY;
 108     }
 109     else
 110     {
 111         if ( Scale & wxSCALE_HORIZONTAL )
 112             sx = (float)sz.x/(float)bmpsz.x;
 113         if ( Scale & wxSCALE_VERTICAL )
 114             sy = (float)sz.y/(float)bmpsz.y;
 115     }
 116
 117     bmpsz = wxSize( (int)(bmpsz.x*sx), (int)(bmpsz.y*sy) );
 118
 119     wxPoint pos( 0, 0 );
 120
 121     if ( Align & wxALIGN_CENTER_HORIZONTAL ) pos.x = (sz.x-bmpsz.x)/2;
 122     else if ( Align & wxALIGN_RIGHT ) pos.x = sz.x-bmpsz.x;
 123
 124     if ( Align & wxALIGN_CENTER_VERTICAL ) pos.y = (sz.y-bmpsz.y)/2;
 125     else if ( Align & wxALIGN_BOTTOM ) pos.y = sz.y-bmpsz.y;
 126
 127     if ( Scale )
 128     {
 129 #ifdef __WXMSW__
 130         double ux, uy;
 131         dc.GetUserScale( &ux, &uy );
 132         dc.SetUserScale( ux*sx, uy*sy );
 133         dc.DrawBitmap( Bitmap, (int)((float)pos.x/sx), (int)((float)pos.y/sy) );
 134         dc.SetUserScale( ux, uy );
 135 #else
 136         if ( LastScaleX != sx || LastScaleY != sy )
 137         {
 138             LastScaleX = sx;
 139             LastScaleY = sy;
 140             ScaledBitmap = wxBitmap( OriginalImage.Scale( bmpsz.x, bmpsz.y ) );
 141         }
 142         dc.DrawBitmap( ScaledBitmap, pos.x, pos.y );
 143 #endif
 144     }
 145     else
 146         dc.DrawBitmap( Bitmap, pos.x, pos.y );
 147 }
 148