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 and Markus Holzem
   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
  39 #if WXWIN_COMPATIBILITY
  40   m_callback = 0;
  41 #endif // WXWIN_COMPATIBILITY
  42 } // end of wxControl::wxControl
  43
  44 bool wxControl::Create(
  45   wxWindow*                         pParent
  46 , wxWindowID                        vId
  47 , const wxPoint&                    rPos
  48 , const wxSize&                     rSize
  49 , long                              lStyle
  50 , const wxValidator&                rValidator
  51 , const wxString&                   rsName
  52 )
  53 {
  54     bool                            bRval = wxWindow::Create( pParent
  55                                                              ,vId
  56                                                              ,rPos
  57                                                              ,rSize
  58                                                              ,lStyle
  59                                                              ,rsName
  60                                                             );
  61     if (bRval)
  62     {
  63 #if wxUSE_VALIDATORS
  64         SetValidator(rValidator);
  65 #endif
  66     }
  67     return bRval;
  68 } // end of wxControl::Create
  69
  70 wxControl::~wxControl()
  71 {
  72     m_isBeingDeleted = TRUE;
  73 }
  74
  75 bool wxControl::OS2CreateControl(
  76   const wxChar*                     zClassname
  77 , const wxString&                   rsLabel
  78 , const wxPoint&                    rPos
  79 , const wxSize&                     rSize
  80 , long                              lStyle
  81 )
  82 {
  83     WXDWORD                         dwExstyle;
  84     WXDWORD                         dwStyle = OS2GetStyle( lStyle
  85                                                           ,&dwExstyle
  86                                                          );
  87
  88     return OS2CreateControl( zClassname
  89                             ,dwStyle
  90                             ,rPos
  91                             ,rSize
  92                             ,rsLabel
  93                             ,dwExstyle
  94                            );
  95 } // end of wxControl::OS2CreateControl
  96
  97 bool wxControl::OS2CreateControl(
  98   const wxChar*                     zClassname
  99 , WXDWORD                           dwStyle
 100 , const wxPoint&                    rPos
 101 , const wxSize&                     rSize
 102 , const wxString&                   rsLabel
 103 , WXDWORD                           dwExstyle
 104 )
 105 {
 106     bool                            bWant3D = FALSE;
 107
 108     //
 109     // Doesn't do anything at all under OS/2
 110     //
 111     if (dwExstyle == (WXDWORD)-1)
 112     {
 113         dwExstyle = Determine3DEffects(WS_EX_CLIENTEDGE, &bWant3D);
 114     }
 115     //
 116     // All controls should have these styles (wxWindows creates all controls
 117     // visible by default)
 118     //
 119     if (m_isShown )
 120         dwStyle |= WS_VISIBLE;
 121
 122     wxWindow*                       pParent = GetParent();
 123     PSZ                             zClass;
 124
 125     if (!pParent)
 126         return FALSE;
 127
 128     if ((strcmp(zClassname, "COMBOBOX")) == 0)
 129         zClass = WC_COMBOBOX;
 130     else if ((strcmp(zClassname, "STATIC")) == 0)
 131         zClass = WC_STATIC;
 132     else if ((strcmp(zClassname, "BUTTON")) == 0)
 133         zClass = WC_BUTTON;
 134     else if ((strcmp(zClassname, "NOTEBOOK")) == 0)
 135         zClass = WC_NOTEBOOK;
 136     dwStyle |= WS_VISIBLE;
 137
 138     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 139                                        ,(PSZ)zClass              // Window class
 140                                        ,(PSZ)rsLabel.c_str()     // Initial Text
 141                                        ,(ULONG)dwStyle           // Style flags
 142                                        ,(LONG)0                  // X pos of origin
 143                                        ,(LONG)0                  // Y pos of origin
 144                                        ,(LONG)0                  // control width
 145                                        ,(LONG)0                  // control height
 146                                        ,(HWND)GetHwndOf(pParent) // owner window handle (same as parent
 147                                        ,HWND_TOP                 // initial z position
 148                                        ,(ULONG)GetId()           // Window identifier
 149                                        ,NULL                     // no control data
 150                                        ,NULL                     // no Presentation parameters
 151                                       );
 152
 153     if ( !m_hWnd )
 154     {
 155 #ifdef __WXDEBUG__
 156         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 157 #endif // DEBUG
 158
 159         return FALSE;
 160     }
 161     //
 162     // Subclass again for purposes of dialog editing mode
 163     //
 164     SubclassWin(m_hWnd);
 165
 166     //
 167     // Controls use the same font and colours as their parent dialog by default
 168     //
 169     InheritAttributes();
 170     SetXComp(0);
 171     SetYComp(0);
 172     SetSize( rPos.x
 173             ,rPos.y
 174             ,rSize.x
 175             ,rSize.y
 176            );
 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 #if WXWIN_COMPATIBILITY
 188     if ( m_callback )
 189     {
 190         (void)(*m_callback)(this, event);
 191
 192         return TRUE;
 193     }
 194     else
 195 #endif // WXWIN_COMPATIBILITY
 196
 197     return GetEventHandler()->ProcessEvent(event);
 198 }
 199
 200 WXHBRUSH wxControl::OnCtlColor(
 201   WXHDC                             hWxDC
 202 , WXHWND                            hWnd
 203 , WXUINT                            uCtlColor
 204 , WXUINT                            uMessage
 205 , WXWPARAM                          wParam
 206 , WXLPARAM                          lParam
 207 )
 208 {
 209     HPS                             hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 210     wxColour                        vColFore = GetForegroundColour();
 211     wxColour                        vColBack = GetBackgroundColour();
 212
 213     if (GetParent()->GetTransparentBackground())
 214         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 215     else
 216         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 217
 218     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 219     ::GpiSetColor(hPS, vColFore.GetPixel());
 220
 221     wxBrush*                        pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 222                                                                                ,wxSOLID
 223                                                                               );
 224     return (WXHBRUSH)pBrush->GetResourceHandle();
 225 } // end of wxControl::OnCtlColor
 226
 227 void wxControl::OnEraseBackground(
 228   wxEraseEvent&                     rEvent
 229 )
 230 {
 231     RECTL                           vRect;
 232     HPS                             hPS = rEvent.GetDC()->GetHPS();
 233     SIZEL                           vSize = {0,0};
 234
 235     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 236     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 237     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 238 } // end of wxControl::OnEraseBackground
 239
 240 WXDWORD wxControl::OS2GetStyle(
 241   long                              lStyle
 242 , WXDWORD*                          pdwExstyle
 243 ) const
 244 {
 245     long                            dwStyle = wxWindow::OS2GetStyle( lStyle
 246                                                                     ,pdwExstyle
 247                                                                    );
 248
 249     if (AcceptsFocus())
 250     {
 251         dwStyle |= WS_TABSTOP;
 252     }
 253     return dwStyle;
 254 } // end of wxControl::OS2GetStyle
 255
 256 // ---------------------------------------------------------------------------
 257 // global functions
 258 // ---------------------------------------------------------------------------
 259
 260 // Call this repeatedly for several wnds to find the overall size
 261 // of the widget.
 262 // Call it initially with -1 for all values in rect.
 263 // Keep calling for other widgets, and rect will be modified
 264 // to calculate largest bounding rectangle.
 265 void wxFindMaxSize(
 266   WXHWND                            hWnd
 267 , RECT*                             pRect
 268 )
 269 {
 270     int                             nLeft = pRect->xLeft;
 271     int                             nRight = pRect->xRight;
 272     int                             nTop = pRect->yTop;
 273     int                             nBottom = pRect->yBottom;
 274
 275     ::WinQueryWindowRect((HWND)hWnd, pRect);
 276
 277     if (nLeft < 0)
 278         return;
 279
 280     if (nLeft < pRect->xLeft)
 281         pRect->xLeft = nLeft;
 282
 283     if (nRight > pRect->xRight)
 284         pRect->xRight = nRight;
 285
 286     if (nTop < pRect->yTop)
 287         pRect->yTop = nTop;
 288
 289     if (nBottom > pRect->yBottom)
 290         pRect->yBottom = nBottom;
 291 } // end of wxFindMaxSize
 292
 293