src/os2/control.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/os2/control.cpp
   3 // Purpose:     wxControl class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     09/17/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/control.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/event.h"
  19     #include "wx/app.h"
  20     #include "wx/dcclient.h"
  21     #include "wx/scrolwin.h"
  22     #include "wx/log.h"
  23 #endif
  24
  25 #include "wx/os2/dc.h"
  26 #include "wx/os2/private.h"
  27
  28 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  29
  30 BEGIN_EVENT_TABLE(wxControl, wxWindow)
  31     EVT_ERASE_BACKGROUND(wxControl::OnEraseBackground)
  32 END_EVENT_TABLE()
  33
  34 // Item members
  35 wxControl::wxControl()
  36 {
  37 } // end of wxControl::wxControl
  38
  39 bool wxControl::Create( wxWindow*           pParent,
  40                         wxWindowID          vId,
  41                         const wxPoint&      rPos,
  42                         const wxSize&       rSize,
  43                         long                lStyle,
  44                         const wxValidator&  rValidator,
  45                         const wxString&     rsName )
  46 {
  47     bool                            bRval = wxWindow::Create( pParent
  48                                                              ,vId
  49                                                              ,rPos
  50                                                              ,rSize
  51                                                              ,lStyle
  52                                                              ,rsName
  53                                                             );
  54     if (bRval)
  55     {
  56 #if wxUSE_VALIDATORS
  57         SetValidator(rValidator);
  58 #endif
  59     }
  60     return bRval;
  61 } // end of wxControl::Create
  62
  63 bool wxControl::OS2CreateControl( const wxChar* zClassname,
  64                                   const wxString& rsLabel,
  65                                   const wxPoint& rPos,
  66                                   const wxSize& rSize,
  67                                   long lStyle )
  68 {
  69     WXDWORD dwExstyle;
  70     WXDWORD dwStyle = OS2GetStyle( lStyle, &dwExstyle );
  71
  72     return OS2CreateControl( zClassname
  73                             ,dwStyle
  74                             ,rPos
  75                             ,rSize
  76                             ,rsLabel
  77                             ,dwExstyle
  78                            );
  79 } // end of wxControl::OS2CreateControl
  80
  81 bool wxControl::OS2CreateControl( const wxChar*   zClassname,
  82                                   WXDWORD         dwStyle,
  83                                   const wxPoint&  rPos,
  84                                   const wxSize&   rSize,
  85                                   const wxString& rsLabel,
  86                                   WXDWORD         dwExstyle )
  87 {
  88     //
  89     // Doesn't do anything at all under OS/2
  90     //
  91     if (dwExstyle == (WXDWORD)-1)
  92     {
  93         dwExstyle = 0;
  94         (void) OS2GetStyle(GetWindowStyle(), &dwExstyle);
  95     }
  96     //
  97     // All controls should have these styles (wxWidgets creates all controls
  98     // visible by default)
  99     //
 100     if (m_isShown )
 101         dwStyle |= WS_VISIBLE;
 102
 103     wxWindow* pParent = GetParent();
 104     PSZ zClass = "";
 105
 106     if (!pParent)
 107         return false;
 108
 109     if ((wxStrcmp(zClassname, wxT("COMBOBOX"))) == 0)
 110         zClass = WC_COMBOBOX;
 111     else if ((wxStrcmp(zClassname, wxT("STATIC"))) == 0)
 112         zClass = WC_STATIC;
 113     else if ((wxStrcmp(zClassname, wxT("BUTTON"))) == 0)
 114         zClass = WC_BUTTON;
 115     else if ((wxStrcmp(zClassname, wxT("NOTEBOOK"))) == 0)
 116         zClass = WC_NOTEBOOK;
 117     else if ((wxStrcmp(zClassname, wxT("CONTAINER"))) == 0)
 118         zClass = WC_CONTAINER;
 119     if ((zClass == WC_STATIC) || (zClass == WC_BUTTON))
 120         dwStyle |= DT_MNEMONIC;
 121
 122     m_dwStyle = dwStyle;
 123     m_label = rsLabel;
 124     wxString label;
 125     if (dwStyle & DT_MNEMONIC)
 126         label = ::wxPMTextToLabel(m_label);
 127     else
 128         label = m_label;
 129
 130     // clipping siblings does not yet work
 131     dwStyle &= ~WS_CLIPSIBLINGS;
 132
 133     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 134                                        ,zClass              // Window class
 135                                        ,label.c_str()       // Initial Text
 136                                        ,(ULONG)dwStyle           // Style flags
 137                                        ,(LONG)0                  // X pos of origin
 138                                        ,(LONG)0                  // Y pos of origin
 139                                        ,(LONG)0                  // control width
 140                                        ,(LONG)0                  // control height
 141                                        ,(HWND)GetHwndOf(pParent) // owner window handle (same as parent
 142                                        ,HWND_TOP                 // initial z position
 143                                        ,(ULONG)GetId()           // Window identifier
 144                                        ,NULL                     // no control data
 145                                        ,NULL                     // no Presentation parameters
 146                                       );
 147
 148     if ( !m_hWnd )
 149     {
 150         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 151
 152         return false;
 153     }
 154     //
 155     // Subclass again for purposes of dialog editing mode
 156     //
 157     SubclassWin(m_hWnd);
 158
 159     //
 160     // Controls use the same colours as their parent dialog by default
 161     //
 162     InheritAttributes();
 163     //
 164     // All OS/2 ctrls use the small font
 165     //
 166     SetFont(*wxSMALL_FONT);
 167
 168     SetXComp(0);
 169     SetYComp(0);
 170     SetSize( rPos.x, rPos.y, rSize.x, rSize.y );
 171     return true;
 172 } // end of wxControl::OS2CreateControl
 173
 174 wxSize wxControl::DoGetBestSize() const
 175 {
 176     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 177 } // end of wxControl::DoGetBestSize
 178
 179 bool wxControl::ProcessCommand(wxCommandEvent& event)
 180 {
 181     return HandleWindowEvent(event);
 182 }
 183
 184 WXHBRUSH wxControl::OnCtlColor(WXHDC    hWxDC,
 185                                WXHWND   WXUNUSED(hWnd),
 186                                WXUINT   WXUNUSED(uCtlColor),
 187                                WXUINT   WXUNUSED(uMessage),
 188                                WXWPARAM WXUNUSED(wParam),
 189                                WXLPARAM WXUNUSED(lParam))
 190 {
 191     HPS      hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 192     wxColour vColFore = GetForegroundColour();
 193     wxColour vColBack = GetBackgroundColour();
 194
 195     if (GetParent()->GetTransparentBackground())
 196         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 197     else
 198         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 199
 200     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 201     ::GpiSetColor(hPS, vColFore.GetPixel());
 202
 203     wxBrush* pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 204                                                          ,wxSOLID
 205                                                        );
 206     return (WXHBRUSH)pBrush->GetResourceHandle();
 207 } // end of wxControl::OnCtlColor
 208
 209 void wxControl::OnEraseBackground( wxEraseEvent& rEvent )
 210 {
 211     RECTL                           vRect;
 212     wxPMDCImpl                     *impl = (wxPMDCImpl*) rEvent.GetDC()->GetImpl();
 213     HPS                             hPS = impl->GetHPS();
 214     SIZEL                           vSize = {0,0};
 215
 216     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 217     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 218     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 219 } // end of wxControl::OnEraseBackground
 220
 221 WXDWORD wxControl::OS2GetStyle( long lStyle, WXDWORD* pdwExstyle ) const
 222 {
 223     long dwStyle = wxWindow::OS2GetStyle( lStyle, pdwExstyle );
 224
 225     if (AcceptsFocusFromKeyboard())
 226     {
 227         dwStyle |= WS_TABSTOP;
 228     }
 229     return dwStyle;
 230 } // end of wxControl::OS2GetStyle
 231
 232 void wxControl::SetLabel( const wxString& rsLabel )
 233 {
 234     if(rsLabel != m_label)
 235     {
 236         m_label = rsLabel;
 237         wxString label;
 238         if (m_dwStyle & DT_MNEMONIC)
 239             label = ::wxPMTextToLabel(m_label);
 240         else
 241             label = m_label;
 242         ::WinSetWindowText(GetHwnd(), label.c_str());
 243     }
 244 } // end of wxControl::SetLabel
 245
 246 // ---------------------------------------------------------------------------
 247 // global functions
 248 // ---------------------------------------------------------------------------
 249
 250 // Call this repeatedly for several wnds to find the overall size
 251 // of the widget.
 252 // Call it initially with -1 for all values in rect.
 253 // Keep calling for other widgets, and rect will be modified
 254 // to calculate largest bounding rectangle.
 255 void wxFindMaxSize(
 256   WXHWND                            hWnd
 257 , RECT*                             pRect
 258 )
 259 {
 260     int                             nLeft = pRect->xLeft;
 261     int                             nRight = pRect->xRight;
 262     int                             nTop = pRect->yTop;
 263     int                             nBottom = pRect->yBottom;
 264
 265     ::WinQueryWindowRect((HWND)hWnd, pRect);
 266
 267     if (nLeft < 0)
 268         return;
 269
 270     if (nLeft < pRect->xLeft)
 271         pRect->xLeft = nLeft;
 272
 273     if (nRight > pRect->xRight)
 274         pRect->xRight = nRight;
 275
 276     if (nTop > pRect->yTop)
 277         pRect->yTop = nTop;
 278
 279     if (nBottom < pRect->yBottom)
 280         pRect->yBottom = nBottom;
 281 } // end of wxFindMaxSize