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/private.h"
  26
  27 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  28
  29 BEGIN_EVENT_TABLE(wxControl, wxWindow)
  30     EVT_ERASE_BACKGROUND(wxControl::OnEraseBackground)
  31 END_EVENT_TABLE()
  32
  33 // Item members
  34 wxControl::wxControl()
  35 {
  36 } // end of wxControl::wxControl
  37
  38 bool wxControl::Create( wxWindow*           pParent,
  39                         wxWindowID          vId,
  40                         const wxPoint&      rPos,
  41                         const wxSize&       rSize,
  42                         long                lStyle,
  43                         const wxValidator&  rValidator,
  44                         const wxString&     rsName )
  45 {
  46     bool                            bRval = wxWindow::Create( pParent
  47                                                              ,vId
  48                                                              ,rPos
  49                                                              ,rSize
  50                                                              ,lStyle
  51                                                              ,rsName
  52                                                             );
  53     if (bRval)
  54     {
  55 #if wxUSE_VALIDATORS
  56         SetValidator(rValidator);
  57 #endif
  58     }
  59     return bRval;
  60 } // end of wxControl::Create
  61
  62 wxControl::~wxControl()
  63 {
  64     m_isBeingDeleted = true;
  65 }
  66
  67 bool wxControl::OS2CreateControl( const wxChar* zClassname,
  68                                   const wxString& rsLabel,
  69                                   const wxPoint& rPos,
  70                                   const wxSize& rSize,
  71                                   long lStyle )
  72 {
  73     WXDWORD dwExstyle;
  74     WXDWORD dwStyle = OS2GetStyle( lStyle, &dwExstyle );
  75
  76     return OS2CreateControl( zClassname
  77                             ,dwStyle
  78                             ,rPos
  79                             ,rSize
  80                             ,rsLabel
  81                             ,dwExstyle
  82                            );
  83 } // end of wxControl::OS2CreateControl
  84
  85 bool wxControl::OS2CreateControl( const wxChar*   zClassname,
  86                                   WXDWORD         dwStyle,
  87                                   const wxPoint&  rPos,
  88                                   const wxSize&   rSize,
  89                                   const wxString& rsLabel,
  90                                   WXDWORD         dwExstyle )
  91 {
  92     //
  93     // Doesn't do anything at all under OS/2
  94     //
  95     if (dwExstyle == (WXDWORD)-1)
  96     {
  97         dwExstyle = 0;
  98         (void) OS2GetStyle(GetWindowStyle(), &dwExstyle);
  99     }
 100     //
 101     // All controls should have these styles (wxWidgets creates all controls
 102     // visible by default)
 103     //
 104     if (m_isShown )
 105         dwStyle |= WS_VISIBLE;
 106
 107     wxWindow* pParent = GetParent();
 108     PSZ zClass = "";
 109
 110     if (!pParent)
 111         return false;
 112
 113     if ((wxStrcmp(zClassname, _T("COMBOBOX"))) == 0)
 114         zClass = WC_COMBOBOX;
 115     else if ((wxStrcmp(zClassname, _T("STATIC"))) == 0)
 116         zClass = WC_STATIC;
 117     else if ((wxStrcmp(zClassname, _T("BUTTON"))) == 0)
 118         zClass = WC_BUTTON;
 119     else if ((wxStrcmp(zClassname, _T("NOTEBOOK"))) == 0)
 120         zClass = WC_NOTEBOOK;
 121     else if ((wxStrcmp(zClassname, _T("CONTAINER"))) == 0)
 122         zClass = WC_CONTAINER;
 123     if ((zClass == WC_STATIC) || (zClass == WC_BUTTON))
 124         dwStyle |= DT_MNEMONIC;
 125
 126     m_dwStyle = dwStyle;
 127     m_label = rsLabel;
 128     wxString label;
 129     if (dwStyle & DT_MNEMONIC)
 130         label = ::wxPMTextToLabel(m_label);
 131     else
 132         label = m_label;
 133
 134     // clipping siblings does not yet work
 135     dwStyle &= ~WS_CLIPSIBLINGS;
 136
 137     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 138                                        ,(PSZ)zClass              // Window class
 139                                        ,(PSZ)label.c_str()       // Initial Text
 140                                        ,(ULONG)dwStyle           // Style flags
 141                                        ,(LONG)0                  // X pos of origin
 142                                        ,(LONG)0                  // Y pos of origin
 143                                        ,(LONG)0                  // control width
 144                                        ,(LONG)0                  // control height
 145                                        ,(HWND)GetHwndOf(pParent) // owner window handle (same as parent
 146                                        ,HWND_TOP                 // initial z position
 147                                        ,(ULONG)GetId()           // Window identifier
 148                                        ,NULL                     // no control data
 149                                        ,NULL                     // no Presentation parameters
 150                                       );
 151
 152     if ( !m_hWnd )
 153     {
 154 #ifdef __WXDEBUG__
 155         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 156 #endif // DEBUG
 157
 158         return false;
 159     }
 160     //
 161     // Subclass again for purposes of dialog editing mode
 162     //
 163     SubclassWin(m_hWnd);
 164
 165     //
 166     // Controls use the same colours as their parent dialog by default
 167     //
 168     InheritAttributes();
 169     //
 170     // All OS/2 ctrls use the small font
 171     //
 172     SetFont(*wxSMALL_FONT);
 173
 174     SetXComp(0);
 175     SetYComp(0);
 176     SetSize( rPos.x, rPos.y, rSize.x, rSize.y );
 177     return true;
 178 } // end of wxControl::OS2CreateControl
 179
 180 wxSize wxControl::DoGetBestSize() const
 181 {
 182     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 183 } // end of wxControl::DoGetBestSize
 184
 185 bool wxControl::ProcessCommand(wxCommandEvent& event)
 186 {
 187     return GetEventHandler()->ProcessEvent(event);
 188 }
 189
 190 WXHBRUSH wxControl::OnCtlColor(WXHDC    hWxDC,
 191                                WXHWND   WXUNUSED(hWnd),
 192                                WXUINT   WXUNUSED(uCtlColor),
 193                                WXUINT   WXUNUSED(uMessage),
 194                                WXWPARAM WXUNUSED(wParam),
 195                                WXLPARAM WXUNUSED(lParam))
 196 {
 197     HPS      hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 198     wxColour vColFore = GetForegroundColour();
 199     wxColour vColBack = GetBackgroundColour();
 200
 201     if (GetParent()->GetTransparentBackground())
 202         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 203     else
 204         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 205
 206     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 207     ::GpiSetColor(hPS, vColFore.GetPixel());
 208
 209     wxBrush* pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 210                                                          ,wxSOLID
 211                                                        );
 212     return (WXHBRUSH)pBrush->GetResourceHandle();
 213 } // end of wxControl::OnCtlColor
 214
 215 void wxControl::OnEraseBackground( wxEraseEvent& rEvent )
 216 {
 217     RECTL                           vRect;
 218     HPS                             hPS = rEvent.GetDC()->GetHPS();
 219     SIZEL                           vSize = {0,0};
 220
 221     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 222     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 223     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 224 } // end of wxControl::OnEraseBackground
 225
 226 WXDWORD wxControl::OS2GetStyle( long lStyle, WXDWORD* pdwExstyle ) const
 227 {
 228     long dwStyle = wxWindow::OS2GetStyle( lStyle, pdwExstyle );
 229
 230     if (AcceptsFocus())
 231     {
 232         dwStyle |= WS_TABSTOP;
 233     }
 234     return dwStyle;
 235 } // end of wxControl::OS2GetStyle
 236
 237 void wxControl::SetLabel( const wxString& rsLabel )
 238 {
 239     if(rsLabel != m_label)
 240     {
 241         m_label = rsLabel;
 242         wxString label;
 243         if (m_dwStyle & DT_MNEMONIC)
 244             label = ::wxPMTextToLabel(m_label);
 245         else
 246             label = m_label;
 247         ::WinSetWindowText(GetHwnd(), (PSZ)label.c_str());
 248     }
 249 } // end of wxControl::SetLabel
 250
 251 // ---------------------------------------------------------------------------
 252 // global functions
 253 // ---------------------------------------------------------------------------
 254
 255 // Call this repeatedly for several wnds to find the overall size
 256 // of the widget.
 257 // Call it initially with -1 for all values in rect.
 258 // Keep calling for other widgets, and rect will be modified
 259 // to calculate largest bounding rectangle.
 260 void wxFindMaxSize(
 261   WXHWND                            hWnd
 262 , RECT*                             pRect
 263 )
 264 {
 265     int                             nLeft = pRect->xLeft;
 266     int                             nRight = pRect->xRight;
 267     int                             nTop = pRect->yTop;
 268     int                             nBottom = pRect->yBottom;
 269
 270     ::WinQueryWindowRect((HWND)hWnd, pRect);
 271
 272     if (nLeft < 0)
 273         return;
 274
 275     if (nLeft < pRect->xLeft)
 276         pRect->xLeft = nLeft;
 277
 278     if (nRight > pRect->xRight)
 279         pRect->xRight = nRight;
 280
 281     if (nTop > pRect->yTop)
 282         pRect->yTop = nTop;
 283
 284     if (nBottom < pRect->yBottom)
 285         pRect->yBottom = nBottom;
 286 } // end of wxFindMaxSize