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 #endif
  24 #include "wx/os2/private.h"
  25 #include "wx/control.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
  37 #if WXWIN_COMPATIBILITY
  38   m_callback = 0;
  39 #endif // WXWIN_COMPATIBILITY
  40 } // end of wxControl::wxControl
  41
  42 bool wxControl::Create(
  43   wxWindow*                         pParent
  44 , wxWindowID                        vId
  45 , const wxPoint&                    rPos
  46 , const wxSize&                     rSize
  47 , long                              lStyle
  48 #if wxUSE_VALIDATORS
  49 , const wxValidator&                rValidator
  50 #endif
  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   wxWindow*                         pParent
  77 , wxWindowID                        vId
  78 , const wxPoint&                    rPos
  79 , const wxSize&                     rSize
  80 , long                              lStyle
  81 #if wxUSE_VALIDATORS
  82 , const wxValidator&                rValidator
  83 #endif
  84 , const wxString&                   rsName
  85 )
  86 {
  87     //
  88     // Even if it's possible to create controls without parents in some port,
  89     // it should surely be discouraged because it doesn't work at all under
  90     // Windows
  91     //
  92     if (!CreateBase( pParent
  93                     ,vId
  94                     ,rPos
  95                     ,rSize
  96                     ,lStyle
  97 #if wxUSE_VALIDATORS
  98                     ,rValidator
  99 #endif
 100                     ,rsName
 101                    ))
 102         return FALSE;
 103     pParent->AddChild(this);
 104     return TRUE;
 105 } // end of wxControl::OS2CreateControl
 106
 107 bool wxControl::OS2CreateControl(
 108   const wxChar*                     zClassname
 109 , WXDWORD                           dwStyle
 110 , const wxPoint&                    rPos
 111 , const wxSize&                     rSize
 112 , const wxString&                   rsLabel
 113 , WXDWORD                           dwExstyle
 114 )
 115 {
 116     //
 117     // Doesn't do anything at all under OS/2
 118     //
 119     if (dwExstyle == (WXDWORD)-1)
 120     {
 121         dwExstyle = GetExStyle(dwStyle);
 122     }
 123
 124     if ( !m_hWnd )
 125     {
 126 #ifdef __WXDEBUG__
 127         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 128 #endif // DEBUG
 129
 130         return FALSE;
 131     }
 132
 133     PSZ                             zClass;
 134
 135     if ((strcmp(zClassname, "COMBOBOX")) == 0)
 136         zClass = WC_COMBOBOX;
 137     dwStyle |= WS_VISIBLE;
 138     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(GetParent()) // Parent window handle
 139                                        ,(PSZ)zClassname              // Window class
 140                                        ,(PSZ)rsLabel.c_str()         // Initial Text
 141                                        ,(ULONG)dwStyle               // Style flags
 142                                        ,(LONG)rPos.x                 // X pos of origin
 143                                        ,(LONG)rPos.y                 // Y pos of origin
 144                                        ,(LONG)rSize.x                // control width
 145                                        ,(LONG)rSize.y                // control height
 146                                        ,(HWND)GetHwndOf(GetParent()) // 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     //
 154     // Subclass again for purposes of dialog editing mode
 155     //
 156     SubclassWin(m_hWnd);
 157
 158     //
 159     // Controls use the same font and colours as their parent dialog by default
 160     //
 161     InheritAttributes();
 162     return TRUE;
 163 } // end of wxControl::OS2CreateControl
 164
 165 wxSize wxControl::DoGetBestSize() const
 166 {
 167     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 168 } // end of wxControl::DoGetBestSize
 169
 170 bool wxControl::ProcessCommand(wxCommandEvent& event)
 171 {
 172 #if WXWIN_COMPATIBILITY
 173     if ( m_callback )
 174     {
 175         (void)(*m_callback)(this, event);
 176
 177         return TRUE;
 178     }
 179     else
 180 #endif // WXWIN_COMPATIBILITY
 181
 182     return GetEventHandler()->ProcessEvent(event);
 183 }
 184
 185 WXHBRUSH wxControl::OnCtlColor(
 186   WXHDC                             hWxDC
 187 , WXHWND                            hWnd
 188 , WXUINT                            uCtlColor
 189 , WXUINT                            uMessage
 190 , WXWPARAM                          wParam
 191 , WXLPARAM                          lParam
 192 )
 193 {
 194     HPS                             hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 195     wxColour                        vColFore = GetForegroundColour();
 196     wxColour                        vColBack = GetBackgroundColour();
 197
 198     if (GetParent()->GetTransparentBackground())
 199         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 200     else
 201         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 202
 203     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 204     ::GpiSetColor(hPS, vColFore.GetPixel());
 205
 206     wxBrush*                        pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 207                                                                                ,wxSOLID
 208                                                                               );
 209     return (WXHBRUSH)pBrush->GetResourceHandle();
 210 } // end of wxControl::OnCtlColor
 211
 212 void wxControl::OnEraseBackground(
 213   wxEraseEvent&                     rEvent
 214 )
 215 {
 216     RECTL                           vRect;
 217     HPS                             hPS = rEvent.GetDC()->GetHPS();
 218     SIZEL                           vSize = {0,0};
 219
 220     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 221     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 222     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 223 } // end of wxControl::OnEraseBackground
 224
 225 WXDWORD wxControl::GetExStyle(
 226   WXDWORD&                          rStyle
 227 ) const
 228 {
 229     //
 230     // Meaningless under OS/2, just return what was sent
 231     //
 232     WXDWORD                         exStyle = rStyle;
 233
 234     return exStyle;
 235 } // end of wxControl::GetExStyle
 236
 237 // ---------------------------------------------------------------------------
 238 // global functions
 239 // ---------------------------------------------------------------------------
 240
 241 // Call this repeatedly for several wnds to find the overall size
 242 // of the widget.
 243 // Call it initially with -1 for all values in rect.
 244 // Keep calling for other widgets, and rect will be modified
 245 // to calculate largest bounding rectangle.
 246 void wxFindMaxSize(
 247   WXHWND                            hWnd
 248 , RECT*                             pRect
 249 )
 250 {
 251     int                             nLeft = pRect->xLeft;
 252     int                             nRight = pRect->xRight;
 253     int                             nTop = pRect->yTop;
 254     int                             nBottom = pRect->yBottom;
 255
 256     ::WinQueryWindowRect((HWND)hWnd, pRect);
 257
 258     if (nLeft < 0)
 259         return;
 260
 261     if (nLeft < pRect->xLeft)
 262         pRect->xLeft = nLeft;
 263
 264     if (nRight > pRect->xRight)
 265         pRect->xRight = nRight;
 266
 267     if (nTop < pRect->yTop)
 268         pRect->yTop = nTop;
 269
 270     if (nBottom > pRect->yBottom)
 271         pRect->yBottom = nBottom;
 272 } // end of wxFindMaxSize
 273
 274