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 #if !USE_SHARED_LIBRARIES
  29 IMPLEMENT_DYNAMIC_CLASS(wxBrush, wxGDIObject)
  30 #endif
  31
  32 wxBrushRefData::wxBrushRefData()
  33 {
  34     m_style = wxSOLID;
  35     m_hBrush = 0;
  36 }
  37
  38 wxBrushRefData::wxBrushRefData(const wxBrushRefData& data)
  39 {
  40     m_style = data.m_style;
  41     m_stipple = data.m_stipple;
  42     m_colour = data.m_colour;
  43     m_hBrush = 0;
  44 }
  45
  46 wxBrushRefData::~wxBrushRefData()
  47 {
  48 // TODO: delete data
  49 }
  50
  51 // Brushes
  52 wxBrush::wxBrush()
  53 {
  54     if ( wxTheBrushList )
  55         wxTheBrushList->AddBrush(this);
  56 }
  57
  58 wxBrush::~wxBrush()
  59 {
  60     if ( wxTheBrushList )
  61         wxTheBrushList->RemoveBrush(this);
  62 }
  63
  64 wxBrush::wxBrush(const wxColour& col, int Style)
  65 {
  66     m_refData = new wxBrushRefData;
  67
  68     M_BRUSHDATA->m_colour = col;
  69     M_BRUSHDATA->m_style = Style;
  70     M_BRUSHDATA->m_hBrush = 0;
  71
  72     RealizeResource();
  73
  74     if ( wxTheBrushList )
  75         wxTheBrushList->AddBrush(this);
  76 }
  77
  78 wxBrush::wxBrush(const wxBitmap& stipple)
  79 {
  80     m_refData = new wxBrushRefData;
  81
  82     M_BRUSHDATA->m_style = wxSTIPPLE;
  83     M_BRUSHDATA->m_stipple = stipple;
  84     M_BRUSHDATA->m_hBrush = 0;
  85
  86     RealizeResource();
  87
  88     if ( wxTheBrushList )
  89         wxTheBrushList->AddBrush(this);
  90 }
  91
  92 bool wxBrush::RealizeResource(void)
  93 {
  94 // TODO:
  95 /*
  96     if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0))
  97     {
  98         if (M_BRUSHDATA->m_style==wxTRANSPARENT)
  99         {
 100             M_BRUSHDATA->m_hBrush = (WXHBRUSH) ::GetStockObject(NULL_BRUSH);
 101             return TRUE;
 102         }
 103         COLORREF ms_colour = 0 ;
 104
 105         ms_colour = M_BRUSHDATA->m_colour.GetPixel() ;
 106
 107         switch (M_BRUSHDATA->m_style)
 108         {
 109 //
 110     // Don't reset cbrush, wxTRANSPARENT is handled by wxBrush::SelectBrush()
 111     // this could save (many) time if frequently switching from
 112     // wxSOLID to wxTRANSPARENT, because Create... is not always called!!
 113     //
 114     // NB August 95: now create and select a Null brush instead.
 115     // This could be optimized as above.
 116     case wxTRANSPARENT:
 117       M_BRUSHDATA->m_hBrush = NULL;  // Must always select a suitable background brush
 118                       // - could choose white always for a quick solution
 119       break;
 120 //
 121             case wxBDIAGONAL_HATCH:
 122                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_BDIAGONAL,ms_colour) ;
 123                 break ;
 124
 125             case wxCROSSDIAG_HATCH:
 126                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_DIAGCROSS,ms_colour) ;
 127                 break ;
 128
 129             case wxFDIAGONAL_HATCH:
 130                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_FDIAGONAL,ms_colour) ;
 131                 break ;
 132
 133             case wxCROSS_HATCH:
 134                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_CROSS,ms_colour) ;
 135                 break ;
 136
 137             case wxHORIZONTAL_HATCH:
 138                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_HORIZONTAL,ms_colour) ;
 139                 break ;
 140
 141             case wxVERTICAL_HATCH:
 142                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_VERTICAL,ms_colour) ;
 143                 break ;
 144
 145             case wxSTIPPLE:
 146                 if (M_BRUSHDATA->m_stipple.Ok())
 147                     M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreatePatternBrush((HBITMAP) M_BRUSHDATA->m_stipple.GetHBITMAP()) ;
 148                 else
 149                     M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ;
 150                 break ;
 151
 152             case wxSOLID:
 153             default:
 154                 M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ;
 155                 break;
 156         }
 157 #ifdef WXDEBUG_CREATE
 158         if (M_BRUSHDATA->m_hBrush==NULL) wxError("Cannot create brush","Internal error") ;
 159 #endif
 160         return TRUE;
 161     }
 162     else
 163         return FALSE;
 164 */
 165     return FALSE;
 166 }
 167
 168 WXHANDLE wxBrush::GetResourceHandle(void)
 169 {
 170   return (WXHANDLE) M_BRUSHDATA->m_hBrush;
 171 }
 172
 173 bool wxBrush::FreeResource(bool WXUNUSED(force))
 174 {
 175     if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush != 0))
 176     {
 177 // TODO    DeleteObject((HBRUSH) M_BRUSHDATA->m_hBrush);
 178         M_BRUSHDATA->m_hBrush = 0;
 179         return TRUE;
 180     }
 181     else return FALSE;
 182 }
 183
 184 bool wxBrush::IsFree() const
 185 {
 186   return (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0));
 187 }
 188
 189 void wxBrush::Unshare()
 190 {
 191     // Don't change shared data
 192     if (!m_refData)
 193     {
 194         m_refData = new wxBrushRefData();
 195     }
 196     else
 197     {
 198         wxBrushRefData* ref = new wxBrushRefData(*(wxBrushRefData*)m_refData);
 199         UnRef();
 200         m_refData = ref;
 201     }
 202 }
 203
 204 void wxBrush::SetColour(const wxColour& col)
 205 {
 206     Unshare();
 207
 208     M_BRUSHDATA->m_colour = col;
 209
 210     RealizeResource();
 211 }
 212
 213 void wxBrush::SetColour(unsigned char r, unsigned char g, unsigned char b)
 214 {
 215     Unshare();
 216
 217     M_BRUSHDATA->m_colour.Set(r, g, b);
 218
 219     RealizeResource();
 220 }
 221
 222 void wxBrush::SetStyle(int Style)
 223 {
 224     Unshare();
 225
 226     M_BRUSHDATA->m_style = Style;
 227
 228     RealizeResource();
 229 }
 230
 231 void wxBrush::SetStipple(const wxBitmap& Stipple)
 232 {
 233     Unshare();
 234
 235     M_BRUSHDATA->m_stipple = Stipple;
 236
 237     RealizeResource();
 238 }
 239