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   m_backgroundColour = *wxWHITE;
  37   m_foregroundColour = *wxBLACK;
  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 #if wxUSE_VALIDATORS
  51 , const wxValidator&                rValidator
  52 #endif
  53 , const wxString&                   rsName
  54 )
  55 {
  56     bool                            bRval = wxWindow::Create( pParent
  57                                                              ,vId
  58                                                              ,rPos
  59                                                              ,rSize
  60                                                              ,lStyle
  61                                                              ,rsName
  62                                                             );
  63     if (bRval)
  64     {
  65 #if wxUSE_VALIDATORS
  66         SetValidator(rValidator);
  67 #endif
  68     }
  69     return bRval;
  70 } // end of wxControl::Create
  71
  72 wxControl::~wxControl()
  73 {
  74     m_isBeingDeleted = TRUE;
  75 }
  76
  77 bool wxControl::OS2CreateControl(
  78   wxWindow*                         pParent
  79 , wxWindowID                        vId
  80 , const wxPoint&                    rPos
  81 , const wxSize&                     rSize
  82 , long                              lStyle
  83 #if wxUSE_VALIDATORS
  84 , const wxValidator&                rValidator
  85 #endif
  86 , const wxString&                   rsName
  87 )
  88 {
  89     //
  90     // Even if it's possible to create controls without parents in some port,
  91     // it should surely be discouraged because it doesn't work at all under
  92     // Windows
  93     //
  94     if (!CreateBase( pParent
  95                     ,vId
  96                     ,rPos
  97                     ,rSize
  98                     ,lStyle
  99 #if wxUSE_VALIDATORS
 100                     ,rValidator
 101 #endif
 102                     ,rsName
 103                    ))
 104         return FALSE;
 105     pParent->AddChild(this);
 106     return TRUE;
 107 } // end of wxControl::OS2CreateControl
 108
 109 bool wxControl::OS2CreateControl(
 110   const wxChar*                     zClassname
 111 , WXDWORD                           dwStyle
 112 , const wxPoint&                    rPos
 113 , const wxSize&                     rSize
 114 , const wxString&                   rsLabel
 115 , WXDWORD                           dwExstyle
 116 )
 117 {
 118     //
 119     // Doesn't do anything at all under OS/2
 120     //
 121     if (dwExstyle == (WXDWORD)-1)
 122     {
 123         dwExstyle = GetExStyle(dwStyle);
 124     }
 125
 126     if ( !m_hWnd )
 127     {
 128 #ifdef __WXDEBUG__
 129         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 130 #endif // DEBUG
 131
 132         return FALSE;
 133     }
 134
 135     PSZ                             zClass;
 136
 137     if ((strcmp(zClassname, "COMBOBOX")) == 0)
 138         zClass = WC_COMBOBOX;
 139     dwStyle |= WS_VISIBLE;
 140     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(GetParent()) // Parent window handle
 141                                        ,(PSZ)zClassname              // Window class
 142                                        ,(PSZ)rsLabel.c_str()         // Initial Text
 143                                        ,(ULONG)dwStyle               // Style flags
 144                                        ,(LONG)rPos.x                 // X pos of origin
 145                                        ,(LONG)rPos.y                 // Y pos of origin
 146                                        ,(LONG)rSize.x                // control width
 147                                        ,(LONG)rSize.y                // control height
 148                                        ,(HWND)GetHwndOf(GetParent()) // owner window handle (same as parent
 149                                        ,HWND_TOP                     // initial z position
 150                                        ,(ULONG)GetId()               // Window identifier
 151                                        ,NULL                         // no control data
 152                                        ,NULL                         // no Presentation parameters
 153                                       );
 154
 155     //
 156     // Subclass again for purposes of dialog editing mode
 157     //
 158     SubclassWin(m_hWnd);
 159
 160     //
 161     // Controls use the same font and colours as their parent dialog by default
 162     //
 163     InheritAttributes();
 164     return TRUE;
 165 } // end of wxControl::OS2CreateControl
 166
 167 wxSize wxControl::DoGetBestSize() const
 168 {
 169     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 170 } // end of wxControl::DoGetBestSize
 171
 172 bool wxControl::ProcessCommand(wxCommandEvent& event)
 173 {
 174 #if WXWIN_COMPATIBILITY
 175     if ( m_callback )
 176     {
 177         (void)(*m_callback)(this, event);
 178
 179         return TRUE;
 180     }
 181     else
 182 #endif // WXWIN_COMPATIBILITY
 183
 184     return GetEventHandler()->ProcessEvent(event);
 185 }
 186
 187 WXHBRUSH wxControl::OnCtlColor(
 188   WXHDC                             hWxDC
 189 , WXHWND                            hWnd
 190 , WXUINT                            uCtlColor
 191 , WXUINT                            uMessage
 192 , WXWPARAM                          wParam
 193 , WXLPARAM                          lParam
 194 )
 195 {
 196     HPS                             hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 197     wxColour                        vColFore = GetForegroundColour();
 198     wxColour                        vColBack = GetBackgroundColour();
 199
 200     if (GetParent()->GetTransparentBackground())
 201         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 202     else
 203         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 204
 205     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 206     ::GpiSetColor(hPS, vColFore.GetPixel());
 207
 208     wxBrush*                        pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 209                                                                                ,wxSOLID
 210                                                                               );
 211     return (WXHBRUSH)pBrush->GetResourceHandle();
 212 } // end of wxControl::OnCtlColor
 213
 214 void wxControl::OnEraseBackground(
 215   wxEraseEvent&                     rEvent
 216 )
 217 {
 218     RECTL                           vRect;
 219     HPS                             hPS = rEvent.GetDC()->GetHPS();
 220     SIZEL                           vSize = {0,0};
 221
 222     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 223     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 224     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 225 } // end of wxControl::OnEraseBackground
 226
 227 WXDWORD wxControl::GetExStyle(
 228   WXDWORD&                          rStyle
 229 ) const
 230 {
 231     //
 232     // Meaningless under OS/2, just return what was sent
 233     //
 234     WXDWORD                         exStyle = rStyle;
 235
 236     return exStyle;
 237 } // end of wxControl::GetExStyle
 238
 239 // ---------------------------------------------------------------------------
 240 // global functions
 241 // ---------------------------------------------------------------------------
 242
 243 // Call this repeatedly for several wnds to find the overall size
 244 // of the widget.
 245 // Call it initially with -1 for all values in rect.
 246 // Keep calling for other widgets, and rect will be modified
 247 // to calculate largest bounding rectangle.
 248 void wxFindMaxSize(
 249   WXHWND                            hWnd
 250 , RECT*                             pRect
 251 )
 252 {
 253     int                             nLeft = pRect->xLeft;
 254     int                             nRight = pRect->xRight;
 255     int                             nTop = pRect->yTop;
 256     int                             nBottom = pRect->yBottom;
 257
 258     ::WinQueryWindowRect((HWND)hWnd, pRect);
 259
 260     if (nLeft < 0)
 261         return;
 262
 263     if (nLeft < pRect->xLeft)
 264         pRect->xLeft = nLeft;
 265
 266     if (nRight > pRect->xRight)
 267         pRect->xRight = nRight;
 268
 269     if (nTop < pRect->yTop)
 270         pRect->yTop = nTop;
 271
 272     if (nBottom > pRect->yBottom)
 273         pRect->yBottom = nBottom;
 274 } // end of wxFindMaxSize
 275
 276