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:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #ifndef WX_PRECOMP
  15     #include "wx/pen.h"
  16     #include "wx/bitmap.h"
  17     #include "wx/colour.h"
  18 #endif //WX_PRECOMP
  19
  20 #import <AppKit/NSColor.h>
  21
  22 // ========================================================================
  23 // wxPenRefData
  24 // ========================================================================
  25 class WXDLLEXPORT wxPenRefData: public wxGDIRefData
  26 {
  27     friend class WXDLLEXPORT wxPen;
  28 public:
  29     wxPenRefData(const wxColour& colour = wxNullColour,
  30         int width = 1, int style = wxSOLID,
  31         const wxBitmap& stipple = wxNullBitmap);
  32     wxPenRefData(const wxPenRefData& data);
  33     ~wxPenRefData() { FreeCocoaNSColor(); FreeCocoaDash(); }
  34
  35     void SetWidth(int Width) { m_width = Width; }
  36     void SetStyle(int Style)
  37     {   FreeCocoaNSColor();
  38         FreeCocoaDash();
  39         m_style = Style;
  40     }
  41     void SetJoin(int Join) { m_join = Join; }
  42     void SetCap(int Cap) { m_cap = Cap; }
  43     void SetColour(const wxColour& col) { FreeCocoaNSColor(); m_colour = col; }
  44     void SetDashes(int nb_dashes, const wxDash *Dash)
  45     {
  46         FreeCocoaDash();
  47         m_nbDash = nb_dashes;
  48         m_dash = (wxDash *)Dash;
  49     }
  50     void SetStipple(const wxBitmap& Stipple)
  51     {
  52         FreeCocoaNSColor();
  53         m_stipple = Stipple;
  54         m_style = wxSTIPPLE;
  55     }
  56     WX_NSColor GetNSColor();
  57     int GetCocoaLineDash(const CGFloat **pattern);
  58 protected:
  59     void FreeCocoaNSColor();
  60     void FreeCocoaDash();
  61
  62     int             m_width;
  63     int             m_style;
  64     int             m_join;
  65     int             m_cap;
  66     wxColour        m_colour;
  67     int             m_nbDash;
  68     wxDash         *m_dash;
  69     wxBitmap        m_stipple;
  70     WX_NSColor      m_cocoaNSColor;
  71     CGFloat        *m_cocoaDash;
  72
  73     // Predefined dash patterns
  74     static const int scm_countDot;
  75     static const CGFloat scm_patternDot[];
  76     static const int scm_countLongDash;
  77     static const CGFloat scm_patternLongDash[];
  78     static const int scm_countShortDash;
  79     static const CGFloat scm_patternShortDash[];
  80     static const int scm_countDotDash;
  81     static const CGFloat scm_patternDotDash[];
  82 private:
  83     // Don't allow assignment
  84     wxPenRefData& operator=(const wxPenRefData& data);
  85 };
  86
  87 const int wxPenRefData::scm_countDot = 1;
  88 const CGFloat wxPenRefData::scm_patternDot[] = {
  89     1.0
  90 };
  91 const int wxPenRefData::scm_countLongDash = 1;
  92 const CGFloat wxPenRefData::scm_patternLongDash[] = {
  93     10.0
  94 };
  95 const int wxPenRefData::scm_countShortDash = 1;
  96 const CGFloat wxPenRefData::scm_patternShortDash[] = {
  97     5.0
  98 };
  99 const int wxPenRefData::scm_countDotDash = 4;
 100 const CGFloat wxPenRefData::scm_patternDotDash[] = {
 101     1.0
 102 ,   1.0
 103 ,   5.0
 104 ,   1.0
 105 };
 106
 107 #define M_PENDATA ((wxPenRefData *)m_refData)
 108
 109 inline wxPenRefData::wxPenRefData(const wxColour& colour,
 110         int width, int style, const wxBitmap& stipple)
 111 {
 112     m_width = width;
 113     m_style = style;
 114     m_join = wxJOIN_ROUND;
 115     m_cap = wxCAP_ROUND;
 116     m_colour = colour;
 117     m_nbDash = 0;
 118     m_dash = 0;
 119     m_stipple = stipple;
 120     m_cocoaNSColor = nil;
 121     m_cocoaDash = NULL;
 122 }
 123
 124 inline wxPenRefData::wxPenRefData(const wxPenRefData& data)
 125 {
 126     m_width = data.m_width;
 127     m_style = data.m_style;
 128     m_join = data.m_join;
 129     m_cap = data.m_cap;
 130     m_colour = data.m_colour;
 131     m_nbDash = data.m_nbDash;
 132     m_dash = data.m_dash;
 133     m_stipple = data.m_stipple;
 134     m_cocoaNSColor = [data.m_cocoaNSColor retain];
 135     m_cocoaDash = NULL;
 136 }
 137
 138 inline void wxPenRefData::FreeCocoaNSColor()
 139 {
 140     [m_cocoaNSColor release];
 141     m_cocoaNSColor = nil;
 142 }
 143
 144 inline void wxPenRefData::FreeCocoaDash()
 145 {
 146     delete m_cocoaDash;
 147     m_cocoaDash = NULL;
 148 }
 149
 150 inline WX_NSColor wxPenRefData::GetNSColor()
 151 {
 152     if(!m_cocoaNSColor)
 153     {
 154         switch( m_style )
 155         {
 156         case wxTRANSPARENT:
 157             m_cocoaNSColor = [[NSColor clearColor] retain];
 158             break;
 159         case wxSTIPPLE:
 160 //  wxBitmap isn't implemented yet
 161 //            m_cocoaNSColor = [[NSColor colorWithPatternImage: m_stipple.GetNSImage()] retain];
 162 //            break;
 163         // The hatch brushes are going to be tricky
 164         case wxBDIAGONAL_HATCH:
 165         case wxCROSSDIAG_HATCH:
 166         case wxFDIAGONAL_HATCH:
 167         case wxCROSS_HATCH:
 168         case wxHORIZONTAL_HATCH:
 169         case wxVERTICAL_HATCH:
 170         default:
 171         // Dot/dashed pens use solid colors
 172         case wxDOT:
 173         case wxLONG_DASH:
 174         case wxSHORT_DASH:
 175         case wxDOT_DASH:
 176         case wxUSER_DASH:
 177         case wxSOLID:
 178             NSColor *colour_NSColor = m_colour.GetNSColor();
 179             if(!colour_NSColor)
 180                 colour_NSColor = [NSColor clearColor];
 181             m_cocoaNSColor = [colour_NSColor copyWithZone:nil];
 182             break;
 183         }
 184     }
 185     return m_cocoaNSColor;
 186 }
 187
 188 int wxPenRefData::GetCocoaLineDash(const CGFloat **pattern)
 189 {
 190     int count;
 191     switch( m_style )
 192     {
 193     case wxDOT:
 194         count = scm_countDot;
 195         if(pattern)
 196             *pattern = scm_patternDot;
 197         break;
 198     case wxLONG_DASH:
 199         count = scm_countLongDash;
 200         if(pattern)
 201             *pattern = scm_patternLongDash;
 202         break;
 203     case wxSHORT_DASH:
 204         count = scm_countShortDash;
 205         if(pattern)
 206             *pattern = scm_patternShortDash;
 207         break;
 208     case wxDOT_DASH:
 209         count = scm_countDotDash;
 210         if(pattern)
 211             *pattern = scm_patternDotDash;
 212         break;
 213     case wxUSER_DASH:
 214         count = m_nbDash;
 215         if(pattern)
 216         {
 217             if(!m_cocoaDash)
 218             {
 219                 m_cocoaDash = new CGFloat[count];
 220                 for(int i=0; i<count; i++)
 221                     m_cocoaDash[i] = m_dash[i];
 222             }
 223             *pattern = m_cocoaDash;
 224         }
 225         break;
 226     case wxTRANSPARENT:
 227     case wxSTIPPLE:
 228     case wxBDIAGONAL_HATCH:
 229     case wxCROSSDIAG_HATCH:
 230     case wxFDIAGONAL_HATCH:
 231     case wxCROSS_HATCH:
 232     case wxHORIZONTAL_HATCH:
 233     case wxVERTICAL_HATCH:
 234     case wxSOLID:
 235     default:
 236         count = 0;
 237         if(pattern)
 238             *pattern = NULL;
 239     }
 240     return count;
 241 }
 242
 243 // ========================================================================
 244 // wxPen
 245 // ========================================================================
 246 IMPLEMENT_DYNAMIC_CLASS(wxPen, wxGDIObject)
 247
 248 wxPen::wxPen()
 249 {
 250 }
 251
 252 wxPen::~wxPen()
 253 {
 254 }
 255
 256 // Should implement Create
 257 wxPen::wxPen(const wxColour& colour, int width, int style)
 258 {
 259     m_refData = new wxPenRefData(colour,width,style);
 260 }
 261
 262 wxPen::wxPen(const wxBitmap& stipple, int width)
 263 {
 264     m_refData = new wxPenRefData(wxNullColour,width,wxSTIPPLE,stipple);
 265 }
 266
 267 wxObjectRefData *wxPen::CreateRefData() const
 268 {
 269     return new wxPenRefData;
 270 }
 271
 272 wxObjectRefData *wxPen::CloneRefData(const wxObjectRefData *data) const
 273 {
 274     return new wxPenRefData(*(wxPenRefData *)data);
 275 }
 276
 277 void wxPen::SetWidth(int Width)
 278 {
 279     AllocExclusive();
 280     M_PENDATA->SetWidth(Width);
 281 }
 282
 283 void wxPen::SetStyle(int Style)
 284 {
 285     AllocExclusive();
 286     M_PENDATA->SetStyle(Style);
 287 }
 288
 289 void wxPen::SetJoin(int Join)
 290 {
 291     AllocExclusive();
 292     M_PENDATA->SetJoin(Join);
 293 }
 294
 295 void wxPen::SetCap(int Cap)
 296 {
 297     AllocExclusive();
 298     M_PENDATA->SetCap(Cap);
 299 }
 300
 301 void wxPen::SetColour(const wxColour& col)
 302 {
 303     AllocExclusive();
 304     M_PENDATA->SetColour(col);
 305 }
 306
 307 void wxPen::SetColour(unsigned char r, unsigned char g, unsigned char b)
 308 {
 309     AllocExclusive();
 310     M_PENDATA->SetColour(wxColour(r, g, b));
 311 }
 312
 313 void wxPen::SetDashes(int nb_dashes, const wxDash *Dash)
 314 {
 315     AllocExclusive();
 316     M_PENDATA->SetDashes(nb_dashes, Dash);
 317 }
 318
 319 void wxPen::SetStipple(const wxBitmap& Stipple)
 320 {
 321     AllocExclusive();
 322     M_PENDATA->SetStipple(Stipple);
 323 }
 324
 325 wxColour& wxPen::GetColour() const
 326 {
 327     return (M_PENDATA ? M_PENDATA->m_colour : wxNullColour);
 328 }
 329
 330 int wxPen::GetWidth() const
 331 {
 332     return (M_PENDATA ? M_PENDATA->m_width : 0);
 333 }
 334
 335 int wxPen::GetStyle() const
 336 {
 337     return (M_PENDATA ? M_PENDATA->m_style : 0);
 338 }
 339
 340 int wxPen::GetJoin() const
 341 {
 342     return (M_PENDATA ? M_PENDATA->m_join : 0);
 343 }
 344
 345 int wxPen::GetCap() const
 346 {
 347     return (M_PENDATA ? M_PENDATA->m_cap : 0);
 348 }
 349
 350 int wxPen::GetDashes(wxDash **ptr) const
 351 {
 352     *ptr = (M_PENDATA ? M_PENDATA->m_dash : (wxDash*) NULL); return (M_PENDATA ? M_PENDATA->m_nbDash : 0);
 353 }
 354
 355 wxBitmap *wxPen::GetStipple() const
 356 {
 357     return (M_PENDATA ? (& M_PENDATA->m_stipple) : (wxBitmap*) NULL);
 358 }
 359
 360 WX_NSColor wxPen::GetNSColor()
 361 {
 362     return (M_PENDATA ? M_PENDATA->GetNSColor() : nil);
 363 }
 364
 365 int wxPen::GetCocoaLineDash(const CGFloat **pattern)
 366 {
 367     if(M_PENDATA)
 368         return M_PENDATA->GetCocoaLineDash(pattern);
 369     if(pattern)
 370         *pattern = NULL;
 371     return 0;
 372 }