src/os2/brush.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        brush.cpp
   3 // Purpose:     wxBrush
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/13/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifndef WX_PRECOMP
  16 #include <stdio.h>
  17 #include "wx/setup.h"
  18 #include "wx/list.h"
  19 #include "wx/utils.h"
  20 #include "wx/app.h"
  21 #include "wx/brush.h"
  22 #endif
  23
  24 #include "wx/os2/private.h"
  25
  26 #include "assert.h"
  27
  28 IMPLEMENT_DYNAMIC_CLASS(wxBrush, wxGDIObject)
  29
  30 wxBrushRefData::wxBrushRefData()
  31 {
  32     m_nStyle = wxSOLID;
  33     m_hBrush = 0;
  34     memset(&m_vBundle, '\0', sizeof(AREABUNDLE));
  35 } // end of wxBrushRefData::wxBrushRefData
  36
  37 wxBrushRefData::wxBrushRefData(
  38   const wxBrushRefData&             rData
  39 )
  40 {
  41     m_nStyle   = rData.m_nStyle;
  42     m_vStipple = rData.m_vStipple;
  43     m_vColour  = rData.m_vColour;
  44     m_hBrush   = 0;
  45     memcpy(&m_vBundle, &rData.m_vBundle, sizeof(AREABUNDLE));
  46 } // end of wxBrushRefData::wxBrushRefData
  47
  48 wxBrushRefData::~wxBrushRefData()
  49 {
  50 } // end of wxBrushRefData::~wxBrushRefData
  51
  52 //
  53 // Brushes
  54 //
  55 wxBrush::wxBrush()
  56 {
  57     if ( wxTheBrushList )
  58         wxTheBrushList->AddBrush(this);
  59 } // end of wxBrush::wxBrush
  60
  61 wxBrush::~wxBrush()
  62 {
  63     if ( wxTheBrushList )
  64         wxTheBrushList->RemoveBrush(this);
  65 } // end of wxBrush::~wxBrush
  66
  67 wxBrush::wxBrush(
  68   const wxColour&                   rColour
  69 , int                               nStyle
  70 )
  71 {
  72     m_refData = new wxBrushRefData;
  73
  74     M_BRUSHDATA->m_vColour = rColour;
  75     M_BRUSHDATA->m_nStyle  = nStyle;
  76     M_BRUSHDATA->m_hBrush  = 0;
  77     memset(&M_BRUSHDATA->m_vBundle, '\0', sizeof(AREABUNDLE));
  78
  79     RealizeResource();
  80
  81     if ( wxTheBrushList )
  82         wxTheBrushList->AddBrush(this);
  83 } // end of wxBrush::wxBrush
  84
  85 wxBrush::wxBrush(
  86   const wxBitmap&                   rStipple
  87 )
  88 {
  89     m_refData = new wxBrushRefData;
  90
  91     M_BRUSHDATA->m_nStyle   = wxSTIPPLE;
  92     M_BRUSHDATA->m_vStipple = rStipple;
  93     M_BRUSHDATA->m_hBrush  = 0;
  94     memset(&M_BRUSHDATA->m_vBundle, '\0', sizeof(AREABUNDLE));
  95
  96     RealizeResource();
  97
  98     if ( wxTheBrushList )
  99         wxTheBrushList->AddBrush(this);
 100 } // end of wxBrush::wxBrush
 101
 102 bool wxBrush::RealizeResource()
 103 {
 104     BOOL                            bOk;
 105     ERRORID                         vError;
 106     wxString                        sError;
 107
 108     if (M_BRUSHDATA && M_BRUSHDATA->m_hBrush == 0L)
 109     {
 110         SIZEL                   vSize = {0, 0};
 111         DEVOPENSTRUC            vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
 112         HDC                     hDC = ::DevOpenDC( vHabmain
 113                                                   ,OD_MEMORY
 114                                                   ,"*"
 115                                                   ,5L
 116                                                   ,(PDEVOPENDATA)&vDop
 117                                                   ,NULLHANDLE
 118                                                  );
 119         M_BRUSHDATA->m_hBrush = (WXHPEN)::GpiCreatePS( vHabmain
 120                                                       ,hDC
 121                                                       ,&vSize
 122                                                       ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
 123                                                      );
 124     }
 125     if (M_BRUSHDATA)
 126     {
 127         //
 128         // Set the color table to RGB mode
 129         //
 130         if (!::GpiCreateLogColorTable( (HPS)M_BRUSHDATA->m_hBrush
 131                                       ,0L
 132                                       ,LCOLF_RGB
 133                                       ,0L
 134                                       ,0L
 135                                       ,NULL
 136                                      ))
 137         {
 138             vError = ::WinGetLastError(vHabmain);
 139             sError = wxPMErrorToStr(vError);
 140             wxLogError("Unable to set current color table to RGB mode. Error: %s\n", sError);
 141             return FALSE;
 142         }
 143
 144         if (M_BRUSHDATA->m_nStyle==wxTRANSPARENT)
 145         {
 146             return TRUE;
 147         }
 148         COLORREF                    vPmColour = 0L;
 149
 150         vPmColour = M_BRUSHDATA->m_vColour.GetPixel() ;
 151
 152         M_BRUSHDATA->m_vBundle.usSet = LCID_DEFAULT;
 153         switch (M_BRUSHDATA->m_nStyle)
 154         {
 155             case wxTRANSPARENT:
 156                 M_BRUSHDATA->m_hBrush = NULL;  // Must always select a suitable background brush
 157                 break;                         // - could choose white always for a quick solution
 158
 159             case wxBDIAGONAL_HATCH:
 160                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_DIAG3;
 161                 break;
 162
 163             case wxCROSSDIAG_HATCH:
 164                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_DIAGHATCH;
 165                 break;
 166
 167             case wxFDIAGONAL_HATCH:
 168                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_DIAG1;
 169                 break;
 170
 171             case wxCROSS_HATCH:
 172                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_HATCH;
 173                 break;
 174
 175             case wxHORIZONTAL_HATCH:
 176                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_HORIZ;
 177                 break;
 178
 179             case wxVERTICAL_HATCH:
 180                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_VERT;
 181                 break;
 182
 183             case wxSTIPPLE:
 184                 if (M_BRUSHDATA->m_vStipple.Ok())
 185                 {
 186                     ::GpiSetBitmapId( M_BRUSHDATA->m_hBrush
 187                                      ,(USHORT)M_BRUSHDATA->m_vStipple.GetHBITMAP()
 188                                      ,(USHORT)M_BRUSHDATA->m_vStipple.GetId()
 189                                     );
 190                     ::GpiSetPatternSet( M_BRUSHDATA->m_hBrush
 191                                        ,(USHORT)M_BRUSHDATA->m_vStipple.GetId()
 192                                       );
 193                 }
 194                 else
 195                     M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_SOLID;
 196                 break ;
 197
 198             case wxSOLID:
 199             default:
 200                 M_BRUSHDATA->m_vBundle.usSymbol = PATSYM_SOLID;
 201                 break;
 202         }
 203 #ifdef WXDEBUG_CREATE
 204         if (M_BRUSHDATA->m_hBrush==NULL) wxError("Cannot create brush","Internal error") ;
 205 #endif
 206         M_BRUSHDATA->m_vBundle.lColor        = vPmColour;
 207         M_BRUSHDATA->m_vBundle.lBackColor    = CLR_DEFAULT;
 208         M_BRUSHDATA->m_vBundle.usMixMode     = FM_OVERPAINT;
 209         M_BRUSHDATA->m_vBundle.usBackMixMode = BM_OVERPAINT;
 210
 211         bOk = ::GpiSetAttrs( M_BRUSHDATA->m_hBrush
 212                             ,PRIM_AREA
 213                             ,ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE |
 214                              ABB_SET | ABB_SYMBOL
 215                             ,ABB_REF_POINT
 216                             ,&M_BRUSHDATA->m_vBundle
 217                            );
 218         if (!bOk)
 219         {
 220             vError = ::WinGetLastError(vHabmain);
 221             sError = wxPMErrorToStr(vError);
 222             wxLogError("Can't set Gpi attributes for an AREABUNDLE. Error: %s\n", sError);
 223         }
 224         return bOk;
 225     }
 226     return FALSE;
 227 } // end of wxBrush::RealizeResource
 228
 229 WXHANDLE wxBrush::GetResourceHandle()
 230 {
 231     if (!M_BRUSHDATA)
 232         return 0;
 233     return (WXHANDLE)M_BRUSHDATA->m_hBrush;
 234 } // end of wxBrush::GetResourceHandle
 235
 236 bool wxBrush::FreeResource(
 237   bool                              WXUNUSED(bForce)
 238 )
 239 {
 240     if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush != 0))
 241     {
 242         M_BRUSHDATA->m_hBrush = 0;
 243         return TRUE;
 244     }
 245     else return FALSE;
 246 } // end of wxBrush::FreeResource
 247
 248 bool wxBrush::IsFree() const
 249 {
 250   return (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0));
 251 } // end of wxBrush::IsFree
 252
 253 void wxBrush::Unshare()
 254 {
 255     //
 256     // Don't change shared data
 257     //
 258     if (!m_refData)
 259     {
 260         m_refData = new wxBrushRefData();
 261     }
 262     else
 263     {
 264         wxBrushRefData* ref = new wxBrushRefData(*(wxBrushRefData*)m_refData);
 265         UnRef();
 266         m_refData = ref;
 267     }
 268 } // end of wxBrush::Unshare
 269
 270 void wxBrush::SetColour(
 271   const wxColour&                   rColour
 272 )
 273 {
 274     Unshare();
 275     M_BRUSHDATA->m_vColour = rColour;
 276     RealizeResource();
 277 }
 278
 279 void wxBrush::SetColour(
 280   unsigned char                     cRed
 281 , unsigned char                     cGreen
 282 , unsigned char                     cBlue
 283 )
 284 {
 285     Unshare();
 286     M_BRUSHDATA->m_vColour.Set( cRed
 287                                ,cGreen
 288                                ,cBlue
 289                               );
 290     RealizeResource();
 291 } // end of wxBrush::SetColour
 292
 293 void wxBrush::SetStyle(
 294   int                               nStyle
 295 )
 296 {
 297     Unshare();
 298     M_BRUSHDATA->m_nStyle = nStyle;
 299     RealizeResource();
 300 } // end of wxBrush::SetStyle
 301
 302 void wxBrush::SetStipple(
 303   const wxBitmap&                   rStipple
 304 )
 305 {
 306     Unshare();
 307     M_BRUSHDATA->m_vStipple = rStipple;
 308     RealizeResource();
 309 } // end of wxBrush::SetStipple
 310
 311 void wxBrush::SetPS(
 312   HPS                               hPS
 313 )
 314 {
 315     Unshare();
 316     if (M_BRUSHDATA->m_hBrush)
 317         ::GpiDestroyPS(M_BRUSHDATA->m_hBrush);
 318     M_BRUSHDATA->m_hBrush = hPS;
 319     RealizeResource();
 320 } // end of WxWinGdi_CPen::SetPS
 321