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(
  94   const wxChar*                     zClassname
  95 , WXDWORD                           dwStyle
  96 , const wxPoint&                    rPos
  97 , const wxSize&                     rSize
  98 , const wxString&                   rsLabel
  99 , WXDWORD                           dwExstyle
 100 )
 101 {
 102     bool                            bWant3D = FALSE;
 103
 104     //
 105     // Doesn't do anything at all under OS/2
 106     //
 107     if (dwExstyle == (WXDWORD)-1)
 108     {
 109         dwExstyle = Determine3DEffects(WS_EX_CLIENTEDGE, &bWant3D);
 110     }
 111     //
 112     // All controls should have these styles (wxWindows creates all controls
 113     // visible by default)
 114     //
 115     if (m_isShown )
 116         dwStyle |= WS_VISIBLE;
 117
 118     wxWindow*                       pParent = GetParent();
 119     PSZ                             zClass;
 120
 121     if (!pParent)
 122         return FALSE;
 123
 124     if ((strcmp(zClassname, "COMBOBOX")) == 0)
 125         zClass = WC_COMBOBOX;
 126     else if ((strcmp(zClassname, "STATIC")) == 0)
 127         zClass = WC_STATIC;
 128     else if ((strcmp(zClassname, "BUTTON")) == 0)
 129         zClass = WC_BUTTON;
 130     else if ((strcmp(zClassname, "NOTEBOOK")) == 0)
 131         zClass = WC_NOTEBOOK;
 132     else if ((strcmp(zClassname, "CONTAINER")) == 0)
 133         zClass = WC_CONTAINER;
 134     dwStyle |= WS_VISIBLE;
 135
 136     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 137                                        ,(PSZ)zClass              // Window class
 138                                        ,(PSZ)rsLabel.c_str()     // Initial Text
 139                                        ,(ULONG)dwStyle           // Style flags
 140                                        ,(LONG)0                  // X pos of origin
 141                                        ,(LONG)0                  // Y pos of origin
 142                                        ,(LONG)0                  // control width
 143                                        ,(LONG)0                  // control height
 144                                        ,(HWND)GetHwndOf(pParent) // owner window handle (same as parent
 145                                        ,HWND_TOP                 // initial z position
 146                                        ,(ULONG)GetId()           // Window identifier
 147                                        ,NULL                     // no control data
 148                                        ,NULL                     // no Presentation parameters
 149                                       );
 150
 151     if ( !m_hWnd )
 152     {
 153 #ifdef __WXDEBUG__
 154         wxLogError(wxT("Failed to create a control of class '%s'"), zClassname);
 155 #endif // DEBUG
 156
 157         return FALSE;
 158     }
 159     //
 160     // Subclass again for purposes of dialog editing mode
 161     //
 162     SubclassWin(m_hWnd);
 163
 164     //
 165     // Controls use the same font and colours as their parent dialog by default
 166     //
 167     InheritAttributes();
 168     SetXComp(0);
 169     SetYComp(0);
 170     SetSize( rPos.x
 171             ,rPos.y
 172             ,rSize.x
 173             ,rSize.y
 174            );
 175     return TRUE;
 176 } // end of wxControl::OS2CreateControl
 177
 178 wxSize wxControl::DoGetBestSize() const
 179 {
 180     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 181 } // end of wxControl::DoGetBestSize
 182
 183 bool wxControl::ProcessCommand(wxCommandEvent& event)
 184 {
 185     return GetEventHandler()->ProcessEvent(event);
 186 }
 187
 188 WXHBRUSH wxControl::OnCtlColor(
 189   WXHDC                             hWxDC
 190 , WXHWND                            hWnd
 191 , WXUINT                            uCtlColor
 192 , WXUINT                            uMessage
 193 , WXWPARAM                          wParam
 194 , WXLPARAM                          lParam
 195 )
 196 {
 197     HPS                             hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 198     wxColour                        vColFore = GetForegroundColour();
 199     wxColour                        vColBack = GetBackgroundColour();
 200
 201     if (GetParent()->GetTransparentBackground())
 202         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 203     else
 204         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 205
 206     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 207     ::GpiSetColor(hPS, vColFore.GetPixel());
 208
 209     wxBrush*                        pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 210                                                                                ,wxSOLID
 211                                                                               );
 212     return (WXHBRUSH)pBrush->GetResourceHandle();
 213 } // end of wxControl::OnCtlColor
 214
 215 void wxControl::OnEraseBackground(
 216   wxEraseEvent&                     rEvent
 217 )
 218 {
 219     RECTL                           vRect;
 220     HPS                             hPS = rEvent.GetDC()->GetHPS();
 221     SIZEL                           vSize = {0,0};
 222
 223     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 224     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 225     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 226 } // end of wxControl::OnEraseBackground
 227
 228 WXDWORD wxControl::OS2GetStyle(
 229   long                              lStyle
 230 , WXDWORD*                          pdwExstyle
 231 ) const
 232 {
 233     long                            dwStyle = wxWindow::OS2GetStyle( lStyle
 234                                                                     ,pdwExstyle
 235                                                                    );
 236
 237     if (AcceptsFocus())
 238     {
 239         dwStyle |= WS_TABSTOP;
 240     }
 241     return dwStyle;
 242 } // end of wxControl::OS2GetStyle
 243
 244 // ---------------------------------------------------------------------------
 245 // global functions
 246 // ---------------------------------------------------------------------------
 247
 248 // Call this repeatedly for several wnds to find the overall size
 249 // of the widget.
 250 // Call it initially with -1 for all values in rect.
 251 // Keep calling for other widgets, and rect will be modified
 252 // to calculate largest bounding rectangle.
 253 void wxFindMaxSize(
 254   WXHWND                            hWnd
 255 , RECT*                             pRect
 256 )
 257 {
 258     int                             nLeft = pRect->xLeft;
 259     int                             nRight = pRect->xRight;
 260     int                             nTop = pRect->yTop;
 261     int                             nBottom = pRect->yBottom;
 262
 263     ::WinQueryWindowRect((HWND)hWnd, pRect);
 264
 265     if (nLeft < 0)
 266         return;
 267
 268     if (nLeft < pRect->xLeft)
 269         pRect->xLeft = nLeft;
 270
 271     if (nRight > pRect->xRight)
 272         pRect->xRight = nRight;
 273
 274     if (nTop < pRect->yTop)
 275         pRect->yTop = nTop;
 276
 277     if (nBottom > pRect->yBottom)
 278         pRect->yBottom = nBottom;
 279 } // end of wxFindMaxSize
 280
 281