src/os2/statbmp.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #ifdef __GNUG__
  13 #pragma implementation "statbmp.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #include "wx/dcclient.h"
  20 #include "wx/window.h"
  21 #include "wx/os2/private.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/icon.h"
  25     #include "wx/statbmp.h"
  26 #endif
  27
  28 #include <stdio.h>
  29
  30 // ---------------------------------------------------------------------------
  31 // macors
  32 // ---------------------------------------------------------------------------
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
  35
  36 BEGIN_EVENT_TABLE(wxStaticBitmap, wxWindow)
  37     EVT_PAINT(wxStaticBitmap::OnPaint)
  38 END_EVENT_TABLE()
  39
  40 static wxGDIImage* ConvertImage(
  41   const wxGDIImage&                 rBitmap
  42 )
  43 {
  44     bool                            bIsIcon = rBitmap.IsKindOf( CLASSINFO(wxIcon) );
  45
  46     if(!bIsIcon )
  47     {
  48         wxASSERT_MSG( wxDynamicCast(&rBitmap, wxBitmap),
  49                       _T("not an icon and not a bitmap?") );
  50
  51         const wxBitmap&             rBmp = (const wxBitmap&)rBitmap;
  52         wxMask*                     pMask = rBmp.GetMask();
  53
  54         if (pMask && pMask->GetMaskBitmap())
  55         {
  56             wxIcon*                 pIcon = new wxIcon;
  57
  58             pIcon->CopyFromBitmap(rBmp);
  59             return pIcon;
  60         }
  61         return new wxBitmap(rBmp);
  62     }
  63
  64     // copying a bitmap is a cheap operation
  65     return new wxIcon( (const wxIcon&)rBitmap );
  66 } // end of ConvertImage
  67
  68 // ---------------------------------------------------------------------------
  69 //  wxStaticBitmap
  70 // ---------------------------------------------------------------------------
  71
  72 bool wxStaticBitmap::Create(
  73   wxWindow*                         pParent
  74 , wxWindowID                        nId
  75 , const wxGDIImage&                 rBitmap
  76 , const wxPoint&                    rPos
  77 , const wxSize&                     rSize
  78 , long                              lStyle
  79 , const wxString&                   rName
  80 )
  81 {
  82     ERRORID                         vError;
  83     wxString                        sError;
  84
  85     Init();
  86
  87     SetName(rName);
  88     if (pParent)
  89         pParent->AddChild(this);
  90
  91     if (nId == -1)
  92         m_windowId = (int)NewControlId();
  93     else
  94         m_windowId = nId;
  95
  96     m_windowStyle = lStyle;
  97
  98     int                             nX= rPos.x;
  99     int                             nY = rPos.y;
 100     char                            zId[16];
 101
 102     m_windowStyle = lStyle;
 103
 104     m_bIsIcon = rBitmap.IsKindOf(CLASSINFO(wxIcon));
 105
 106     //
 107     // For now we only support an ICON
 108     //
 109     int                             nWinstyle = SS_ICON;
 110
 111     m_hWnd = (WXHWND)::WinCreateWindow( pParent->GetHWND()
 112                                        ,(PSZ)wxCanvasClassName
 113                                        ,zId
 114                                        ,nWinstyle | WS_VISIBLE
 115                                        ,0,0,0,0
 116                                        ,pParent->GetHWND()
 117                                        ,HWND_TOP
 118                                        ,m_windowId
 119                                        ,NULL
 120                                        ,NULL
 121                                       );
 122     if (!m_hWnd)
 123     {
 124         vError = ::WinGetLastError(wxGetInstance());
 125         sError = wxPMErrorToStr(vError);
 126         return FALSE;
 127     }
 128     wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create static bitmap") );
 129     m_pImage = ConvertImage(rBitmap);
 130     m_pImage->SetHandle((WXHWND)::WinSendMsg(m_hWnd, SM_QUERYHANDLE, (MPARAM)0, (MPARAM)0));
 131
 132     // Subclass again for purposes of dialog editing mode
 133     SubclassWin(m_hWnd);
 134     SetSize(nX, nY, m_pImage->GetWidth(), m_pImage->GetHeight());
 135
 136     return(TRUE);
 137 } // end of wxStaticBitmap::Create
 138
 139 bool wxStaticBitmap::ImageIsOk() const
 140 {
 141     return(m_pImage && m_pImage->Ok());
 142 }
 143
 144 void wxStaticBitmap::Free()
 145 {
 146     if (m_pImage)
 147         delete m_pImage;
 148     m_pImage = NULL;
 149 } // end of wxStaticBitmap::Free
 150
 151 wxSize wxStaticBitmap::DoGetBestSize() const
 152 {
 153     //
 154     // Reuse the current size (as wxWindow does) instead of using some
 155     // arbitrary default size (as wxControl, our immediate base class, does)
 156     //
 157     return wxWindow::DoGetBestSize();
 158 }
 159
 160 void wxStaticBitmap::OnPaint (
 161   wxPaintEvent&                     WXUNUSED(rEvent)
 162 )
 163 {
 164     wxPaintDC                       vDc(this);
 165     wxBitmap*                       pBitmap;
 166
 167     if (m_pImage->IsKindOf(CLASSINFO(wxIcon)))
 168     {
 169         wxIcon*                     pIcon;
 170
 171         pIcon = wxDynamicCast(m_pImage, wxIcon);
 172         pBitmap = new wxBitmap(*pIcon);
 173         vDc.DrawBitmap(*pBitmap, 0, 0);
 174         delete pBitmap;
 175     }
 176     else
 177     {
 178         pBitmap = wxDynamicCast(m_pImage, wxBitmap);
 179         vDc.DrawBitmap(*pBitmap, 0, 0);
 180     }
 181 } // end of wxStaticBitmap::OnPaint
 182
 183 void wxStaticBitmap::SetImage(
 184   const wxGDIImage&                 rBitmap
 185 )
 186 {
 187     int                             nX = 0;
 188     int                             nY = 0;
 189     int                             nWidth = 0;
 190     int                             nHeight = 0;
 191
 192     Free();
 193     ::WinSendMsg( GetHwnd()
 194                  ,SM_SETHANDLE
 195                  ,MPFROMHWND(rBitmap.GetHandle())
 196                  ,NULL
 197                 );
 198     m_pImage = ConvertImage(rBitmap);
 199
 200     GetPosition(&nX, &nY);
 201     GetSize(&nWidth, &nHeight);
 202
 203     RECTL                           vRect;
 204
 205     vRect.xLeft   = nX;
 206     vRect.yTop    = nY;
 207     vRect.xRight  = nX + nWidth;
 208     vRect.yBottom = nY + nHeight;
 209
 210     ::WinInvalidateRect(GetHwndOf(GetParent()), &vRect, TRUE);
 211 }
 212
 213 MRESULT wxStaticBitmap::OS2WindowProc(
 214   WXUINT                            uMsg
 215 , WXWPARAM                          wParam
 216 , WXLPARAM                          lParam
 217 )
 218 {
 219     return wxWindow::OS2WindowProc(uMsg, wParam, lParam);
 220 } // end of wxStaticBitmap::OS2WindowProc