src/cocoa/pen.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/pen.mm
   3 // Purpose:     wxPen
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/08/02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/setup.h"
  13 #include "wx/pen.h"
  14 #include "wx/bitmap.h"
  15 #include "wx/colour.h"
  16
  17 #import <AppKit/NSColor.h>
  18
  19 // ========================================================================
  20 // wxPenRefData
  21 // ========================================================================
  22 class WXDLLEXPORT wxPenRefData: public wxGDIRefData
  23 {
  24     friend class WXDLLEXPORT wxPen;
  25 public:
  26     wxPenRefData(const wxColour& colour = wxNullColour,
  27         int width = 1, int style = wxSOLID,
  28         const wxBitmap& stipple = wxNullBitmap);
  29     wxPenRefData(const wxPenRefData& data);
  30     ~wxPenRefData() { FreeCocoaNSColor(); FreeCocoaDash(); }
  31
  32     void SetWidth(int Width) { m_width = Width; }
  33     void SetStyle(int Style)
  34     {   FreeCocoaNSColor();
  35         FreeCocoaDash();
  36         m_style = Style;
  37     }
  38     void SetJoin(int Join) { m_join = Join; }
  39     void SetCap(int Cap) { m_cap = Cap; }
  40     void SetColour(const wxColour& col) { FreeCocoaNSColor(); m_colour = col; }
  41     void SetDashes(int nb_dashes, const wxDash *Dash)
  42     {
  43         FreeCocoaDash();
  44         m_nbDash = nb_dashes;
  45         m_dash = (wxDash *)Dash;
  46     }
  47     void SetStipple(const wxBitmap& Stipple)
  48     {
  49         FreeCocoaNSColor();
  50         m_stipple = Stipple;
  51         m_style = wxSTIPPLE;
  52     }
  53     WX_NSColor GetNSColor();
  54     int GetCocoaLineDash(const float **pattern);
  55 protected:
  56     void FreeCocoaNSColor();
  57     void FreeCocoaDash();
  58
  59     int             m_width;
  60     int             m_style;
  61     int             m_join;
  62     int             m_cap;
  63     wxColour        m_colour;
  64     int             m_nbDash;
  65     wxDash         *m_dash;
  66     wxBitmap        m_stipple;
  67     WX_NSColor      m_cocoaNSColor;
  68     float          *m_cocoaDash;
  69
  70     // Predefined dash patterns
  71     static const int scm_countDot;
  72     static const float scm_patternDot[];
  73     static const int scm_countLongDash;
  74     static const float scm_patternLongDash[];
  75     static const int scm_countShortDash;
  76     static const float scm_patternShortDash[];
  77     static const int scm_countDotDash;
  78     static const float scm_patternDotDash[];
  79 private:
  80     // Don't allow assignment
  81     wxPenRefData& operator=(const wxPenRefData& data);
  82 };
  83
  84 const int wxPenRefData::scm_countDot = 1;
  85 const float wxPenRefData::scm_patternDot[] = {
  86     1.0
  87 };
  88 const int wxPenRefData::scm_countLongDash = 1;
  89 const float wxPenRefData::scm_patternLongDash[] = {
  90     10.0
  91 };
  92 const int wxPenRefData::scm_countShortDash = 1;
  93 const float wxPenRefData::scm_patternShortDash[] = {
  94     5.0
  95 };
  96 const int wxPenRefData::scm_countDotDash = 4;
  97 const float wxPenRefData::scm_patternDotDash[] = {
  98     1.0
  99 ,   1.0
 100 ,   5.0
 101 ,   1.0
 102 };
 103
 104 #define M_PENDATA ((wxPenRefData *)m_refData)
 105
 106 inline wxPenRefData::wxPenRefData(const wxColour& colour,
 107         int width, int style, const wxBitmap& stipple)
 108 {
 109     m_width = width;
 110     m_style = style;
 111     m_join = wxJOIN_ROUND;
 112     m_cap = wxCAP_ROUND;
 113     m_colour = colour;
 114     m_nbDash = 0;
 115     m_dash = 0;
 116     m_stipple = stipple;
 117     m_cocoaNSColor = nil;
 118     m_cocoaDash = NULL;
 119 }
 120
 121 inline wxPenRefData::wxPenRefData(const wxPenRefData& data)
 122 {
 123     m_width = data.m_width;
 124     m_style = data.m_style;
 125     m_join = data.m_join;
 126     m_cap = data.m_cap;
 127     m_colour = data.m_colour;
 128     m_nbDash = data.m_nbDash;
 129     m_dash = data.m_dash;
 130     m_stipple = data.m_stipple;
 131     m_cocoaNSColor = [data.m_cocoaNSColor retain];
 132 }
 133
 134 inline void wxPenRefData::FreeCocoaNSColor()
 135 {
 136     [m_cocoaNSColor release];
 137     m_cocoaNSColor = nil;
 138 }
 139
 140 inline void wxPenRefData::FreeCocoaDash()
 141 {
 142     delete m_cocoaDash;
 143     m_cocoaDash = NULL;
 144 }
 145
 146 inline WX_NSColor wxPenRefData::GetNSColor()
 147 {
 148     if(!m_cocoaNSColor)
 149     {
 150         switch( m_style )
 151         {
 152         case wxTRANSPARENT:
 153             m_cocoaNSColor = [[NSColor clearColor] retain];
 154             break;
 155         case wxSTIPPLE:
 156 //  wxBitmap isn't implemented yet
 157 //            m_cocoaNSColor = [[NSColor colorWithPatternImage: m_stipple.GetNSImage()] retain];
 158 //            break;
 159         // The hatch brushes are going to be tricky
 160         case wxBDIAGONAL_HATCH:
 161         case wxCROSSDIAG_HATCH:
 162         case wxFDIAGONAL_HATCH:
 163         case wxCROSS_HATCH:
 164         case wxHORIZONTAL_HATCH:
 165         case wxVERTICAL_HATCH:
 166         default:
 167         // Dot/dashed pens use solid colors
 168         case wxDOT:
 169         case wxLONG_DASH:
 170         case wxSHORT_DASH:
 171         case wxDOT_DASH:
 172         case wxUSER_DASH:
 173         case wxSOLID:
 174             NSColor *colour_NSColor = m_colour.GetNSColor();
 175             if(!colour_NSColor)
 176                 colour_NSColor = [NSColor clearColor];
 177             m_cocoaNSColor = [colour_NSColor copyWithZone:nil];
 178             break;
 179         }
 180     }
 181     return m_cocoaNSColor;
 182 }
 183
 184 int wxPenRefData::GetCocoaLineDash(const float **pattern)
 185 {
 186     int count;
 187     switch( m_style )
 188     {
 189     case wxDOT:
 190         count = scm_countDot;
 191         if(pattern)
 192             *pattern = scm_patternDot;
 193         break;
 194     case wxLONG_DASH:
 195         count = scm_countLongDash;
 196         if(pattern)
 197             *pattern = scm_patternLongDash;
 198         break;
 199     case wxSHORT_DASH:
 200         count = scm_countShortDash;
 201         if(pattern)
 202             *pattern = scm_patternShortDash;
 203         break;
 204     case wxDOT_DASH:
 205         count = scm_countDotDash;
 206         if(pattern)
 207             *pattern = scm_patternDotDash;
 208         break;
 209     case wxUSER_DASH:
 210         count = m_nbDash;
 211         if(pattern)
 212         {
 213             if(!m_cocoaDash)
 214             {
 215                 m_cocoaDash = new float[count];
 216                 for(int i=0; i<count; i++)
 217                     m_cocoaDash[i] = m_dash[i];
 218             }
 219             *pattern = m_cocoaDash;
 220         }
 221         break;
 222     case wxTRANSPARENT:
 223     case wxSTIPPLE:
 224     case wxBDIAGONAL_HATCH:
 225     case wxCROSSDIAG_HATCH:
 226     case wxFDIAGONAL_HATCH:
 227     case wxCROSS_HATCH:
 228     case wxHORIZONTAL_HATCH:
 229     case wxVERTICAL_HATCH:
 230     case wxSOLID:
 231     default:
 232         count = 0;
 233         if(pattern)
 234             *pattern = NULL;
 235     }
 236     return count;
 237 }
 238
 239 // ========================================================================
 240 // wxPen
 241 // ========================================================================
 242 IMPLEMENT_DYNAMIC_CLASS(wxPen, wxGDIObject)
 243
 244 wxPen::wxPen()
 245 {
 246 }
 247
 248 wxPen::~wxPen()
 249 {
 250 }
 251
 252 // Should implement Create
 253 wxPen::wxPen(const wxColour& colour, int width, int style)
 254 {
 255     m_refData = new wxPenRefData(colour,width,style);
 256 }
 257
 258 wxPen::wxPen(const wxBitmap& stipple, int width)
 259 {
 260     m_refData = new wxPenRefData(wxNullColour,width,wxSTIPPLE,stipple);
 261 }
 262
 263 wxObjectRefData *wxPen::CreateRefData() const
 264 {
 265     return new wxPenRefData;
 266 }
 267
 268 wxObjectRefData *wxPen::CloneRefData(const wxObjectRefData *data) const
 269 {
 270     return new wxPenRefData(*(wxPenRefData *)data);
 271 }
 272
 273 void wxPen::SetWidth(int Width)
 274 {
 275     AllocExclusive();
 276     M_PENDATA->SetWidth(Width);
 277 }
 278
 279 void wxPen::SetStyle(int Style)
 280 {
 281     AllocExclusive();
 282     M_PENDATA->SetStyle(Style);
 283 }
 284
 285 void wxPen::SetJoin(int Join)
 286 {
 287     AllocExclusive();
 288     M_PENDATA->SetJoin(Join);
 289 }
 290
 291 void wxPen::SetCap(int Cap)
 292 {
 293     AllocExclusive();
 294     M_PENDATA->SetCap(Cap);
 295 }
 296
 297 void wxPen::SetColour(const wxColour& col)
 298 {
 299     AllocExclusive();
 300     M_PENDATA->SetColour(col);
 301 }
 302
 303 void wxPen::SetColour(unsigned char r, unsigned char g, unsigned char b)
 304 {
 305     AllocExclusive();
 306     M_PENDATA->SetColour(wxColour(r, g, b));
 307 }
 308
 309 void wxPen::SetDashes(int nb_dashes, const wxDash *Dash)
 310 {
 311     AllocExclusive();
 312     M_PENDATA->SetDashes(nb_dashes, Dash);
 313 }
 314
 315 void wxPen::SetStipple(const wxBitmap& Stipple)
 316 {
 317     AllocExclusive();
 318     M_PENDATA->SetStipple(Stipple);
 319 }
 320
 321 wxColour& wxPen::GetColour() const
 322 {
 323     return (M_PENDATA ? M_PENDATA->m_colour : wxNullColour);
 324 }
 325
 326 int wxPen::GetWidth() const
 327 {
 328     return (M_PENDATA ? M_PENDATA->m_width : 0);
 329 }
 330
 331 int wxPen::GetStyle() const
 332 {
 333     return (M_PENDATA ? M_PENDATA->m_style : 0);
 334 }
 335
 336 int wxPen::GetJoin() const
 337 {
 338     return (M_PENDATA ? M_PENDATA->m_join : 0);
 339 }
 340
 341 int wxPen::GetCap() const
 342 {
 343     return (M_PENDATA ? M_PENDATA->m_cap : 0);
 344 }
 345
 346 int wxPen::GetDashes(wxDash **ptr) const
 347 {
 348     *ptr = (M_PENDATA ? M_PENDATA->m_dash : (wxDash*) NULL); return (M_PENDATA ? M_PENDATA->m_nbDash : 0);
 349 }
 350
 351 wxBitmap *wxPen::GetStipple() const
 352 {
 353     return (M_PENDATA ? (& M_PENDATA->m_stipple) : (wxBitmap*) NULL);
 354 }
 355
 356 WX_NSColor wxPen::GetNSColor()
 357 {
 358     return (M_PENDATA ? M_PENDATA->GetNSColor() : nil);
 359 }
 360
 361 int wxPen::GetCocoaLineDash(const float **pattern)
 362 {
 363     if(M_PENDATA)
 364         return M_PENDATA->GetCocoaLineDash(pattern);
 365     if(pattern)
 366         *pattern = NULL;
 367     return 0;
 368 }
 369