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 #ifndef WX_PRECOMP
  16 #include "wx/event.h"
  17 #include "wx/app.h"
  18 #include "wx/dcclient.h"
  19 #include "wx/scrolwin.h"
  20 #include "wx/log.h"
  21 #endif
  22 #include "wx/os2/private.h"
  23 #include "wx/control.h"
  24
  25 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  26
  27 BEGIN_EVENT_TABLE(wxControl, wxWindow)
  28     EVT_ERASE_BACKGROUND(wxControl::OnEraseBackground)
  29 END_EVENT_TABLE()
  30
  31 // Item members
  32 wxControl::wxControl()
  33 {
  34 } // end of wxControl::wxControl
  35
  36 bool wxControl::Create(
  37   wxWindow*                         pParent
  38 , wxWindowID                        vId
  39 , const wxPoint&                    rPos
  40 , const wxSize&                     rSize
  41 , long                              lStyle
  42 , const wxValidator&                rValidator
  43 , const wxString&                   rsName
  44 )
  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     dwStyle |= WS_VISIBLE;
 124
 125     m_label = rsLabel;
 126     wxString label = ::wxPMTextToLabel(m_label);
 127
 128     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 129                                        ,(PSZ)zClass              // Window class
 130                                        ,(PSZ)label.c_str()      // Initial Text
 131                                        ,(ULONG)dwStyle           // Style flags
 132                                        ,(LONG)0                  // X pos of origin
 133                                        ,(LONG)0                  // Y pos of origin
 134                                        ,(LONG)0                  // control width
 135                                        ,(LONG)0                  // control height
 136                                        ,(HWND)GetHwndOf(pParent) // owner window handle (same as parent
 137                                        ,HWND_TOP                 // initial z position
 138                                        ,(ULONG)GetId()           // Window identifier
 139                                        ,NULL                     // no control data
 140                                        ,NULL                     // no Presentation parameters
 141                                       );
 142
 143     if ( !m_hWnd )
 144     {
 145 #ifdef __WXDEBUG__
 146         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 147 #endif // DEBUG
 148
 149         return false;
 150     }
 151     //
 152     // Subclass again for purposes of dialog editing mode
 153     //
 154     SubclassWin(m_hWnd);
 155
 156     //
 157     // Controls use the same colours as their parent dialog by default
 158     //
 159     InheritAttributes();
 160     //
 161     // All OS/2 ctrls use the small font
 162     //
 163     SetFont(*wxSMALL_FONT);
 164
 165     SetXComp(0);
 166     SetYComp(0);
 167     SetSize( rPos.x, rPos.y, rSize.x, rSize.y );
 168     return true;
 169 } // end of wxControl::OS2CreateControl
 170
 171 wxSize wxControl::DoGetBestSize() const
 172 {
 173     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 174 } // end of wxControl::DoGetBestSize
 175
 176 bool wxControl::ProcessCommand(wxCommandEvent& event)
 177 {
 178     return GetEventHandler()->ProcessEvent(event);
 179 }
 180
 181 WXHBRUSH wxControl::OnCtlColor(WXHDC    hWxDC,
 182                                WXHWND   WXUNUSED(hWnd),
 183                                WXUINT   WXUNUSED(uCtlColor),
 184                                WXUINT   WXUNUSED(uMessage),
 185                                WXWPARAM WXUNUSED(wParam),
 186                                WXLPARAM WXUNUSED(lParam))
 187 {
 188     HPS      hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 189     wxColour vColFore = GetForegroundColour();
 190     wxColour vColBack = GetBackgroundColour();
 191
 192     if (GetParent()->GetTransparentBackground())
 193         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 194     else
 195         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 196
 197     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 198     ::GpiSetColor(hPS, vColFore.GetPixel());
 199
 200     wxBrush* pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 201                                                          ,wxSOLID
 202                                                        );
 203     return (WXHBRUSH)pBrush->GetResourceHandle();
 204 } // end of wxControl::OnCtlColor
 205
 206 void wxControl::OnEraseBackground( wxEraseEvent& rEvent )
 207 {
 208     RECTL                           vRect;
 209     HPS                             hPS = rEvent.GetDC()->GetHPS();
 210     SIZEL                           vSize = {0,0};
 211
 212     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 213     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 214     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 215 } // end of wxControl::OnEraseBackground
 216
 217 WXDWORD wxControl::OS2GetStyle( long lStyle, WXDWORD* pdwExstyle ) const
 218 {
 219     long dwStyle = wxWindow::OS2GetStyle( lStyle, pdwExstyle );
 220
 221     if (AcceptsFocus())
 222     {
 223         dwStyle |= WS_TABSTOP;
 224     }
 225     return dwStyle;
 226 } // end of wxControl::OS2GetStyle
 227
 228 void wxControl::SetLabel( const wxString& rsLabel )
 229 {
 230     if(rsLabel != m_label)
 231     {
 232         m_label = rsLabel;
 233         wxString label = ::wxPMTextToLabel(rsLabel);
 234         ::WinSetWindowText(GetHwnd(), (PSZ)label.c_str());
 235     }
 236 } // end of wxControl::SetLabel
 237
 238 // ---------------------------------------------------------------------------
 239 // global functions
 240 // ---------------------------------------------------------------------------
 241
 242 // Call this repeatedly for several wnds to find the overall size
 243 // of the widget.
 244 // Call it initially with -1 for all values in rect.
 245 // Keep calling for other widgets, and rect will be modified
 246 // to calculate largest bounding rectangle.
 247 void wxFindMaxSize(
 248   WXHWND                            hWnd
 249 , RECT*                             pRect
 250 )
 251 {
 252     int                             nLeft = pRect->xLeft;
 253     int                             nRight = pRect->xRight;
 254     int                             nTop = pRect->yTop;
 255     int                             nBottom = pRect->yBottom;
 256
 257     ::WinQueryWindowRect((HWND)hWnd, pRect);
 258
 259     if (nLeft < 0)
 260         return;
 261
 262     if (nLeft < pRect->xLeft)
 263         pRect->xLeft = nLeft;
 264
 265     if (nRight > pRect->xRight)
 266         pRect->xRight = nRight;
 267
 268     if (nTop > pRect->yTop)
 269         pRect->yTop = nTop;
 270
 271     if (nBottom < pRect->yBottom)
 272         pRect->yBottom = nBottom;
 273 } // end of wxFindMaxSize