src/os2/control.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #ifdef __GNUG__
  13 #pragma implementation "control.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifndef WX_PRECOMP
  20 #include "wx/event.h"
  21 #include "wx/app.h"
  22 #include "wx/dcclient.h"
  23 #include "wx/scrolwin.h"
  24 #include "wx/log.h"
  25 #endif
  26 #include "wx/os2/private.h"
  27 #include "wx/control.h"
  28
  29 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  30
  31 BEGIN_EVENT_TABLE(wxControl, wxWindow)
  32     EVT_ERASE_BACKGROUND(wxControl::OnEraseBackground)
  33 END_EVENT_TABLE()
  34
  35 // Item members
  36 wxControl::wxControl()
  37 {
  38 } // end of wxControl::wxControl
  39
  40 bool wxControl::Create(
  41   wxWindow*                         pParent
  42 , wxWindowID                        vId
  43 , const wxPoint&                    rPos
  44 , const wxSize&                     rSize
  45 , long                              lStyle
  46 , const wxValidator&                rValidator
  47 , const wxString&                   rsName
  48 )
  49 {
  50     bool                            bRval = wxWindow::Create( pParent
  51                                                              ,vId
  52                                                              ,rPos
  53                                                              ,rSize
  54                                                              ,lStyle
  55                                                              ,rsName
  56                                                             );
  57     if (bRval)
  58     {
  59 #if wxUSE_VALIDATORS
  60         SetValidator(rValidator);
  61 #endif
  62     }
  63     return bRval;
  64 } // end of wxControl::Create
  65
  66 wxControl::~wxControl()
  67 {
  68     m_isBeingDeleted = true;
  69 }
  70
  71 bool wxControl::OS2CreateControl(
  72   const wxChar*                     zClassname
  73 , const wxString&                   rsLabel
  74 , const wxPoint&                    rPos
  75 , const wxSize&                     rSize
  76 , long                              lStyle
  77 )
  78 {
  79     WXDWORD                         dwExstyle;
  80     WXDWORD                         dwStyle = OS2GetStyle( lStyle
  81                                                           ,&dwExstyle
  82                                                          );
  83
  84     return OS2CreateControl( zClassname
  85                             ,dwStyle
  86                             ,rPos
  87                             ,rSize
  88                             ,rsLabel
  89                             ,dwExstyle
  90                            );
  91 } // end of wxControl::OS2CreateControl
  92
  93 bool wxControl::OS2CreateControl( const wxChar*   zClassname,
  94                                   WXDWORD         dwStyle,
  95                                   const wxPoint&  rPos,
  96                                   const wxSize&   rSize,
  97                                   const wxString& rsLabel,
  98                                   WXDWORD         dwExstyle )
  99 {
 100     //
 101     // Doesn't do anything at all under OS/2
 102     //
 103     if (dwExstyle == (WXDWORD)-1)
 104     {
 105         dwExstyle = 0;
 106         (void) OS2GetStyle(GetWindowStyle(), &dwExstyle);
 107     }
 108     //
 109     // All controls should have these styles (wxWidgets creates all controls
 110     // visible by default)
 111     //
 112     if (m_isShown )
 113         dwStyle |= WS_VISIBLE;
 114
 115     wxWindow*                       pParent = GetParent();
 116     PSZ                             zClass = "";
 117
 118     if (!pParent)
 119         return FALSE;
 120
 121     if ((wxStrcmp(zClassname, _T("COMBOBOX"))) == 0)
 122         zClass = WC_COMBOBOX;
 123     else if ((wxStrcmp(zClassname, _T("STATIC"))) == 0)
 124         zClass = WC_STATIC;
 125     else if ((wxStrcmp(zClassname, _T("BUTTON"))) == 0)
 126         zClass = WC_BUTTON;
 127     else if ((wxStrcmp(zClassname, _T("NOTEBOOK"))) == 0)
 128         zClass = WC_NOTEBOOK;
 129     else if ((wxStrcmp(zClassname, _T("CONTAINER"))) == 0)
 130         zClass = WC_CONTAINER;
 131     dwStyle |= WS_VISIBLE;
 132
 133     wxString                        sLabel = ::wxPMTextToLabel(rsLabel);
 134
 135     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 136                                        ,(PSZ)zClass              // Window class
 137                                        ,(PSZ)sLabel.c_str()      // Initial Text
 138                                        ,(ULONG)dwStyle           // Style flags
 139                                        ,(LONG)0                  // X pos of origin
 140                                        ,(LONG)0                  // Y pos of origin
 141                                        ,(LONG)0                  // control width
 142                                        ,(LONG)0                  // control height
 143                                        ,(HWND)GetHwndOf(pParent) // owner window handle (same as parent
 144                                        ,HWND_TOP                 // initial z position
 145                                        ,(ULONG)GetId()           // Window identifier
 146                                        ,NULL                     // no control data
 147                                        ,NULL                     // no Presentation parameters
 148                                       );
 149
 150     if ( !m_hWnd )
 151     {
 152 #ifdef __WXDEBUG__
 153         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 154 #endif // DEBUG
 155
 156         return FALSE;
 157     }
 158     //
 159     // Subclass again for purposes of dialog editing mode
 160     //
 161     SubclassWin(m_hWnd);
 162
 163     //
 164     // Controls use the same colours as their parent dialog by default
 165     //
 166     InheritAttributes();
 167     //
 168     // All OS/2 ctrls use the small font
 169     //
 170     SetFont(*wxSMALL_FONT);
 171
 172     SetXComp(0);
 173     SetYComp(0);
 174     SetSize( rPos.x
 175             ,rPos.y
 176             ,rSize.x
 177             ,rSize.y
 178            );
 179     return true;
 180 } // end of wxControl::OS2CreateControl
 181
 182 wxSize wxControl::DoGetBestSize() const
 183 {
 184     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 185 } // end of wxControl::DoGetBestSize
 186
 187 bool wxControl::ProcessCommand(wxCommandEvent& event)
 188 {
 189     return GetEventHandler()->ProcessEvent(event);
 190 }
 191
 192 WXHBRUSH wxControl::OnCtlColor(WXHDC    hWxDC,
 193                                WXHWND   WXUNUSED(hWnd),
 194                                WXUINT   WXUNUSED(uCtlColor),
 195                                WXUINT   WXUNUSED(uMessage),
 196                                WXWPARAM WXUNUSED(wParam),
 197                                WXLPARAM WXUNUSED(lParam))
 198 {
 199     HPS      hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 200     wxColour vColFore = GetForegroundColour();
 201     wxColour vColBack = GetBackgroundColour();
 202
 203     if (GetParent()->GetTransparentBackground())
 204         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 205     else
 206         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 207
 208     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 209     ::GpiSetColor(hPS, vColFore.GetPixel());
 210
 211     wxBrush* pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 212                                                          ,wxSOLID
 213                                                        );
 214     return (WXHBRUSH)pBrush->GetResourceHandle();
 215 } // end of wxControl::OnCtlColor
 216
 217 void wxControl::OnEraseBackground(
 218   wxEraseEvent&                     rEvent
 219 )
 220 {
 221     RECTL                           vRect;
 222     HPS                             hPS = rEvent.GetDC()->GetHPS();
 223     SIZEL                           vSize = {0,0};
 224
 225     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 226     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 227     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 228 } // end of wxControl::OnEraseBackground
 229
 230 WXDWORD wxControl::OS2GetStyle(
 231   long                              lStyle
 232 , WXDWORD*                          pdwExstyle
 233 ) const
 234 {
 235     long                            dwStyle = wxWindow::OS2GetStyle( lStyle
 236                                                                     ,pdwExstyle
 237                                                                    );
 238
 239     if (AcceptsFocus())
 240     {
 241         dwStyle |= WS_TABSTOP;
 242     }
 243     return dwStyle;
 244 } // end of wxControl::OS2GetStyle
 245
 246 void wxControl::SetLabel(
 247   const wxString&                   rsLabel
 248 )
 249 {
 250     wxString                        sLabel = ::wxPMTextToLabel(rsLabel);
 251
 252     ::WinSetWindowText(GetHwnd(), (PSZ)sLabel.c_str());
 253 } // end of wxControl::SetLabel
 254
 255 // ---------------------------------------------------------------------------
 256 // global functions
 257 // ---------------------------------------------------------------------------
 258
 259 // Call this repeatedly for several wnds to find the overall size
 260 // of the widget.
 261 // Call it initially with -1 for all values in rect.
 262 // Keep calling for other widgets, and rect will be modified
 263 // to calculate largest bounding rectangle.
 264 void wxFindMaxSize(
 265   WXHWND                            hWnd
 266 , RECT*                             pRect
 267 )
 268 {
 269     int                             nLeft = pRect->xLeft;
 270     int                             nRight = pRect->xRight;
 271     int                             nTop = pRect->yTop;
 272     int                             nBottom = pRect->yBottom;
 273
 274     ::WinQueryWindowRect((HWND)hWnd, pRect);
 275
 276     if (nLeft < 0)
 277         return;
 278
 279     if (nLeft < pRect->xLeft)
 280         pRect->xLeft = nLeft;
 281
 282     if (nRight > pRect->xRight)
 283         pRect->xRight = nRight;
 284
 285     if (nTop > pRect->yTop)
 286         pRect->yTop = nTop;
 287
 288     if (nBottom < pRect->yBottom)
 289         pRect->yBottom = nBottom;
 290 } // end of wxFindMaxSize