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