src/os2/statbmp.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/os2/statbmp.cpp
   3 // Purpose:     wxStaticBitmap
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     11/27/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/statbmp.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/icon.h"
  19     #include "wx/window.h"
  20     #include "wx/dcclient.h"
  21 #endif
  22
  23 #include "wx/os2/private.h"
  24
  25 #include <stdio.h>
  26
  27 // ---------------------------------------------------------------------------
  28 // macros
  29 // ---------------------------------------------------------------------------
  30
  31 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
  32
  33 BEGIN_EVENT_TABLE(wxStaticBitmap, wxWindow)
  34     EVT_PAINT(wxStaticBitmap::OnPaint)
  35 END_EVENT_TABLE()
  36
  37 static wxGDIImage* ConvertImage(
  38   const wxGDIImage&                 rBitmap
  39 )
  40 {
  41     bool                            bIsIcon = rBitmap.IsKindOf( CLASSINFO(wxIcon) );
  42
  43     if(!bIsIcon )
  44     {
  45         wxASSERT_MSG( wxDynamicCast(&rBitmap, wxBitmap),
  46                       _T("not an icon and not a bitmap?") );
  47
  48         const wxBitmap&             rBmp = (const wxBitmap&)rBitmap;
  49         wxMask*                     pMask = rBmp.GetMask();
  50
  51         if (pMask && pMask->GetMaskBitmap())
  52         {
  53             wxIcon*                 pIcon = new wxIcon;
  54
  55             pIcon->CopyFromBitmap(rBmp);
  56             return pIcon;
  57         }
  58         return new wxBitmap(rBmp);
  59     }
  60
  61     // copying a bitmap is a cheap operation
  62     return new wxIcon( (const wxIcon&)rBitmap );
  63 } // end of ConvertImage
  64
  65 // ---------------------------------------------------------------------------
  66 //  wxStaticBitmap
  67 // ---------------------------------------------------------------------------
  68
  69 bool wxStaticBitmap::Create( wxWindow*         pParent,
  70                              wxWindowID        nId,
  71                              const wxGDIImage& rBitmap,
  72                              const wxPoint&    rPos,
  73                              const wxSize&     WXUNUSED(rSize),
  74                              long              lStyle,
  75                              const wxString&   rName )
  76 {
  77     ERRORID                         vError;
  78     wxString                        sError;
  79
  80     Init();
  81
  82     SetName(rName);
  83     if (pParent)
  84         pParent->AddChild(this);
  85
  86     if (nId == -1)
  87         m_windowId = (int)NewControlId();
  88     else
  89         m_windowId = nId;
  90
  91     m_windowStyle = lStyle;
  92
  93     int                             nX= rPos.x;
  94     int                             nY = rPos.y;
  95     char                            zId[16];
  96
  97     m_windowStyle = lStyle;
  98
  99     m_bIsIcon = rBitmap.IsKindOf(CLASSINFO(wxIcon));
 100
 101     //
 102     // For now we only support an ICON
 103     //
 104     int                             nWinstyle = SS_ICON;
 105
 106     m_hWnd = (WXHWND)::WinCreateWindow( pParent->GetHWND()
 107                                        ,(PSZ)wxCanvasClassName
 108                                        ,zId
 109                                        ,nWinstyle | WS_VISIBLE
 110                                        ,0,0,0,0
 111                                        ,pParent->GetHWND()
 112                                        ,HWND_TOP
 113                                        ,m_windowId
 114                                        ,NULL
 115                                        ,NULL
 116                                       );
 117     if (!m_hWnd)
 118     {
 119         vError = ::WinGetLastError(wxGetInstance());
 120         sError = wxPMErrorToStr(vError);
 121         return false;
 122     }
 123     wxCHECK_MSG( m_hWnd, false, wxT("Failed to create static bitmap") );
 124     m_pImage = ConvertImage(rBitmap);
 125     ::WinSendMsg(   m_hWnd,
 126                     SM_SETHANDLE,
 127                     MPFROMHWND(rBitmap.GetHandle()),
 128                     (MPARAM)0);
 129
 130     // Subclass again for purposes of dialog editing mode
 131     SubclassWin(m_hWnd);
 132     SetSize(nX, nY, m_pImage->GetWidth(), m_pImage->GetHeight());
 133
 134     return true;
 135 } // end of wxStaticBitmap::Create
 136
 137 bool wxStaticBitmap::ImageIsOk() const
 138 {
 139     return(m_pImage && m_pImage->Ok());
 140 }
 141
 142 void wxStaticBitmap::Free()
 143 {
 144     if (m_pImage)
 145         delete m_pImage;
 146     m_pImage = NULL;
 147 } // end of wxStaticBitmap::Free
 148
 149 wxSize wxStaticBitmap::DoGetBestSize() const
 150 {
 151     //
 152     // Reuse the current size (as wxWindow does) instead of using some
 153     // arbitrary default size (as wxControl, our immediate base class, does)
 154     //
 155     return wxWindow::DoGetBestSize();
 156 }
 157
 158 void wxStaticBitmap::OnPaint ( wxPaintEvent& WXUNUSED(rEvent) )
 159 {
 160     wxPaintDC vDc(this);
 161     wxBitmap* pBitmap;
 162
 163     if (m_pImage->IsKindOf(CLASSINFO(wxIcon)))
 164     {
 165         wxIcon*                     pIcon;
 166
 167         pIcon = wxDynamicCast(m_pImage, wxIcon);
 168         pBitmap = new wxBitmap(*pIcon);
 169         vDc.DrawBitmap(*pBitmap, 0, 0);
 170         delete pBitmap;
 171     }
 172     else
 173     {
 174         pBitmap = wxDynamicCast(m_pImage, wxBitmap);
 175         vDc.DrawBitmap(*pBitmap, 0, 0);
 176     }
 177 } // end of wxStaticBitmap::OnPaint
 178
 179 void wxStaticBitmap::SetImage( const wxGDIImage& rBitmap )
 180 {
 181     int nX = 0;
 182     int nY = 0;
 183     int nWidth = 0;
 184     int nHeight = 0;
 185
 186     Free();
 187     ::WinSendMsg( GetHwnd()
 188                  ,SM_SETHANDLE
 189                  ,MPFROMHWND(rBitmap.GetHandle())
 190                  ,NULL
 191                 );
 192     m_pImage = ConvertImage(rBitmap);
 193
 194     GetPosition(&nX, &nY);
 195     GetSize(&nWidth, &nHeight);
 196     // Convert to OS/2 coordinate system
 197     nY = wxWindow::GetOS2ParentHeight(GetParent()) - nY - nHeight;
 198
 199     RECTL                           vRect;
 200
 201     vRect.xLeft   = nX;
 202     vRect.yTop    = nY + nHeight;
 203     vRect.xRight  = nX + nWidth;
 204     vRect.yBottom = nY;
 205
 206     ::WinInvalidateRect(GetHwndOf(GetParent()), &vRect, TRUE);
 207 }
 208
 209 MRESULT wxStaticBitmap::OS2WindowProc(
 210   WXUINT                            uMsg
 211 , WXWPARAM                          wParam
 212 , WXLPARAM                          lParam
 213 )
 214 {
 215     return wxWindow::OS2WindowProc(uMsg, wParam, lParam);
 216 } // end of wxStaticBitmap::OS2WindowProc