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     //
 103     // Doesn't do anything at all under OS/2
 104     //
 105     if (dwExstyle == (WXDWORD)-1)
 106     {
 107         dwExstyle = 0;
 108         (void) OS2GetStyle(GetWindowStyle(), &dwExstyle);
 109     }
 110     //
 111     // All controls should have these styles (wxWidgets creates all controls
 112     // visible by default)
 113     //
 114     if (m_isShown )
 115         dwStyle |= WS_VISIBLE;
 116
 117     wxWindow*                       pParent = GetParent();
 118     PSZ                             zClass;
 119
 120     if (!pParent)
 121         return FALSE;
 122
 123     if ((strcmp(zClassname, "COMBOBOX")) == 0)
 124         zClass = WC_COMBOBOX;
 125     else if ((strcmp(zClassname, "STATIC")) == 0)
 126         zClass = WC_STATIC;
 127     else if ((strcmp(zClassname, "BUTTON")) == 0)
 128         zClass = WC_BUTTON;
 129     else if ((strcmp(zClassname, "NOTEBOOK")) == 0)
 130         zClass = WC_NOTEBOOK;
 131     else if ((strcmp(zClassname, "CONTAINER")) == 0)
 132         zClass = WC_CONTAINER;
 133     dwStyle |= WS_VISIBLE;
 134
 135     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
 136                                        ,(PSZ)zClass              // Window class
 137                                        ,(PSZ)rsLabel.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(
 193   WXHDC                             hWxDC
 194 , WXHWND                            hWnd
 195 , WXUINT                            uCtlColor
 196 , WXUINT                            uMessage
 197 , WXWPARAM                          wParam
 198 , WXLPARAM                          lParam
 199 )
 200 {
 201     HPS                             hPS = (HPS)hWxDC; // pass in a PS handle in OS/2
 202     wxColour                        vColFore = GetForegroundColour();
 203     wxColour                        vColBack = GetBackgroundColour();
 204
 205     if (GetParent()->GetTransparentBackground())
 206         ::GpiSetBackMix(hPS, BM_LEAVEALONE);
 207     else
 208         ::GpiSetBackMix(hPS, BM_OVERPAINT);
 209
 210     ::GpiSetBackColor(hPS, vColBack.GetPixel());
 211     ::GpiSetColor(hPS, vColFore.GetPixel());
 212
 213     wxBrush*                        pBrush = wxTheBrushList->FindOrCreateBrush( vColBack
 214                                                                                ,wxSOLID
 215                                                                               );
 216     return (WXHBRUSH)pBrush->GetResourceHandle();
 217 } // end of wxControl::OnCtlColor
 218
 219 void wxControl::OnEraseBackground(
 220   wxEraseEvent&                     rEvent
 221 )
 222 {
 223     RECTL                           vRect;
 224     HPS                             hPS = rEvent.GetDC()->GetHPS();
 225     SIZEL                           vSize = {0,0};
 226
 227     ::GpiSetPS(hPS, &vSize, PU_PELS | GPIF_DEFAULT);
 228     ::WinQueryWindowRect((HWND)GetHwnd(), &vRect);
 229     ::WinFillRect(hPS, &vRect, GetBackgroundColour().GetPixel());
 230 } // end of wxControl::OnEraseBackground
 231
 232 WXDWORD wxControl::OS2GetStyle(
 233   long                              lStyle
 234 , WXDWORD*                          pdwExstyle
 235 ) const
 236 {
 237     long                            dwStyle = wxWindow::OS2GetStyle( lStyle
 238                                                                     ,pdwExstyle
 239                                                                    );
 240
 241     if (AcceptsFocus())
 242     {
 243         dwStyle |= WS_TABSTOP;
 244     }
 245     return dwStyle;
 246 } // end of wxControl::OS2GetStyle
 247
 248 void wxControl::SetLabel(
 249   const wxString&                   rsLabel
 250 )
 251 {
 252     wxString                        sLabel = ::wxPMTextToLabel(rsLabel);
 253
 254     ::WinSetWindowText(GetHwnd(), sLabel.c_str());
 255 } // end of wxControl::SetLabel
 256
 257 // ---------------------------------------------------------------------------
 258 // global functions
 259 // ---------------------------------------------------------------------------
 260
 261 // Call this repeatedly for several wnds to find the overall size
 262 // of the widget.
 263 // Call it initially with -1 for all values in rect.
 264 // Keep calling for other widgets, and rect will be modified
 265 // to calculate largest bounding rectangle.
 266 void wxFindMaxSize(
 267   WXHWND                            hWnd
 268 , RECT*                             pRect
 269 )
 270 {
 271     int                             nLeft = pRect->xLeft;
 272     int                             nRight = pRect->xRight;
 273     int                             nTop = pRect->yTop;
 274     int                             nBottom = pRect->yBottom;
 275
 276     ::WinQueryWindowRect((HWND)hWnd, pRect);
 277
 278     if (nLeft < 0)
 279         return;
 280
 281     if (nLeft < pRect->xLeft)
 282         pRect->xLeft = nLeft;
 283
 284     if (nRight > pRect->xRight)
 285         pRect->xRight = nRight;
 286
 287     if (nTop > pRect->yTop)
 288         pRect->yTop = nTop;
 289
 290     if (nBottom < pRect->yBottom)
 291         pRect->yBottom = nBottom;
 292 } // end of wxFindMaxSize
 293
 294