src/os2/pen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/os2/pen.cpp
   3 // Purpose:     wxPen
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/10/99
   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 #include "wx/pen.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include <stdio.h>
  19     #include "wx/list.h"
  20     #include "wx/utils.h"
  21     #include "wx/app.h"
  22     #include "wx/log.h"
  23 #endif
  24
  25 #include "wx/os2/private.h"
  26
  27 class WXDLLIMPEXP_FWD_CORE wxPen;
  28
  29 // ----------------------------------------------------------------------------
  30 // wxPenRefData: contains information about an HPEN and its handle
  31 // ----------------------------------------------------------------------------
  32
  33 class WXDLLEXPORT wxPenRefData: public wxGDIRefData
  34 {
  35     friend class WXDLLIMPEXP_FWD_CORE wxPen;
  36 public:
  37     wxPenRefData();
  38     wxPenRefData(const wxPenRefData& rData);
  39     wxPenRefData(const wxColour& col, int width, wxPenStyle style);
  40     wxPenRefData(const wxBitmap& stipple, int width);
  41     virtual ~wxPenRefData();
  42
  43     bool operator==(const wxPenRefData& data) const
  44     {
  45         // we intentionally don't compare m_hPen fields here
  46         return m_nStyle == data.m_nStyle &&
  47                m_nWidth == data.m_nWidth &&
  48                m_nJoin == data.m_nJoin &&
  49                m_nCap == data.m_nCap &&
  50                m_vColour == data.m_vColour &&
  51                (m_nStyle != wxPENSTYLE_STIPPLE || m_vStipple.IsSameAs(data.m_vStipple)) &&
  52                (m_nStyle != wxPENSTYLE_USER_DASH ||
  53                 (m_dash == data.m_dash &&
  54                     memcmp(m_dash, data.m_dash, m_nbDash*sizeof(wxDash)) == 0));
  55     }
  56
  57 private:
  58     // initialize the fields which have reasonable default values
  59     //
  60     // doesn't initialize m_width and m_style which must be initialize in ctor
  61     void Init()
  62     {
  63         m_nJoin = wxJOIN_ROUND;
  64         m_nCap = wxCAP_ROUND;
  65         m_nbDash = 0;
  66         m_dash = NULL;
  67         m_hPen = 0;
  68     }
  69
  70     int                             m_nWidth;
  71     wxPenStyle                      m_nStyle;
  72     wxPenJoin                       m_nJoin;
  73     wxPenCap                        m_nCap;
  74     wxBitmap                        m_vStipple;
  75     int                             m_nbDash;
  76     wxDash *                        m_dash;
  77     wxColour                        m_vColour;
  78     WXHPEN                          m_hPen;// in OS/2 GPI this will be the PS the pen is associated with
  79
  80     wxDECLARE_NO_ASSIGN_CLASS(wxPenRefData);
  81 };
  82
  83 #define M_PENDATA ((wxPenRefData *)m_refData)
  84
  85 // ----------------------------------------------------------------------------
  86 // wxPenRefData ctors/dtor
  87 // ----------------------------------------------------------------------------
  88
  89 wxPenRefData::wxPenRefData()
  90 {
  91     Init();
  92
  93     m_nStyle  = wxPENSTYLE_SOLID;
  94     m_nWidth  = 1;
  95 } // end of wxPenRefData::wxPenRefData
  96
  97 wxPenRefData::wxPenRefData(
  98   const wxPenRefData&               rData
  99 )
 100 {
 101     m_nStyle  = rData.m_nStyle;
 102     m_nWidth  = rData.m_nWidth;
 103     m_nJoin   = rData.m_nJoin;
 104     m_nCap    = rData.m_nCap;
 105     m_nbDash  = rData.m_nbDash;
 106     m_dash    = rData.m_dash;
 107     m_vColour = rData.m_vColour;
 108     m_hPen    = 0L;
 109 } // end of wxPenRefData::wxPenRefData
 110
 111 wxPenRefData::wxPenRefData(const wxColour& col, int width, wxPenStyle style)
 112 {
 113     Init();
 114
 115     m_nStyle = style;
 116     m_nWidth = width;
 117
 118     m_vColour = col;
 119 }
 120
 121 wxPenRefData::wxPenRefData(const wxBitmap& stipple, int width)
 122 {
 123     Init();
 124
 125     m_nStyle = wxPENSTYLE_STIPPLE;
 126     m_nWidth = width;
 127
 128     m_vStipple = stipple;
 129 }
 130
 131 wxPenRefData::~wxPenRefData()
 132 {
 133 } // end of wxPenRefData::~wxPenRefData
 134
 135 // ----------------------------------------------------------------------------
 136 // wxPen
 137 // ----------------------------------------------------------------------------
 138
 139 IMPLEMENT_DYNAMIC_CLASS(wxPen, wxGDIObject)
 140
 141 wxPen::wxPen(
 142   const wxColour&                   rColour
 143 , int                               nWidth
 144 , wxPenStyle                        nStyle
 145 )
 146 {
 147     m_refData = new wxPenRefData(rColour, nWidth, nStyle);
 148
 149     RealizeResource();
 150 } // end of wxPen::wxPen
 151
 152 #if FUTURE_WXWIN_COMPATIBILITY_3_0
 153 wxPen::wxPen(const wxColour& colour, int width, int style)
 154 {
 155     m_refData = new wxPenRefData(colour, width, (wxPenStyle)style);
 156
 157     RealizeResource();
 158 }
 159 #endif
 160
 161 wxPen::wxPen(
 162   const wxBitmap&                   rStipple
 163 , int                               nWidth
 164 )
 165 {
 166     m_refData = new wxPenRefData (rStipple, nWidth);
 167
 168     RealizeResource();
 169 } // end of wxPen::wxPen
 170
 171 bool wxPen::operator==(const wxPen& pen) const
 172 {
 173     const wxPenRefData *
 174         penData = static_cast<const wxPenRefData *>(pen.m_refData);
 175
 176     // an invalid pen is only equal to another invalid pen
 177     return m_refData ? penData && *M_PENDATA == *penData : !penData;
 178 }
 179
 180 int wx2os2PenStyle(
 181   wxPenStyle                               nWxStyle
 182 );
 183
 184 bool wxPen::RealizeResource()
 185 {
 186     BOOL                            bOk;
 187     ERRORID                         vError;
 188     wxString                        sError;
 189
 190     if (M_PENDATA && M_PENDATA->m_hPen == 0L)
 191     {
 192         SIZEL                   vSize = {0, 0};
 193         DEVOPENSTRUC            vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
 194         HDC                     hDC = ::DevOpenDC( vHabmain
 195                                                   ,OD_MEMORY
 196                                                   ,"*"
 197                                                   ,5L
 198                                                   ,(PDEVOPENDATA)&vDop
 199                                                   ,NULLHANDLE
 200                                                  );
 201         M_PENDATA->m_hPen = (WXHPEN)::GpiCreatePS( vHabmain
 202                                                   ,hDC
 203                                                   ,&vSize
 204                                                   ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
 205                                                  );
 206     }
 207     if (M_PENDATA)
 208     {
 209         //
 210         // Set the color table to RGB mode
 211         //
 212         if (!::GpiCreateLogColorTable( (HPS)M_PENDATA->m_hPen
 213                                       ,0L
 214                                       ,LCOLF_RGB
 215                                       ,0L
 216                                       ,0L
 217                                       ,NULL
 218                                      ))
 219         {
 220             vError = ::WinGetLastError(vHabmain);
 221             sError = wxPMErrorToStr(vError);
 222             wxLogError(wxT("Unable to set current color table to RGB mode. Error: %s\n"), sError.c_str());
 223             return false;
 224         }
 225         if (M_PENDATA->m_nStyle == wxPENSTYLE_TRANSPARENT)
 226         {
 227             return true;
 228         }
 229
 230         COLORREF vPmColour = 0L;
 231         USHORT   uLineType = (USHORT)wx2os2PenStyle(M_PENDATA->m_nStyle);
 232
 233         vPmColour = M_PENDATA->m_vColour.GetPixel();
 234
 235         USHORT                      uJoin = 0L;
 236
 237         switch(M_PENDATA->m_nJoin)
 238         {
 239             case wxJOIN_BEVEL:
 240                 uJoin = LINEJOIN_BEVEL;
 241                 break;
 242
 243             case wxJOIN_MITER:
 244                 uJoin = LINEJOIN_MITRE;
 245                 break;
 246
 247             case wxJOIN_ROUND:
 248                 uJoin = LINEJOIN_ROUND;
 249                 break;
 250         }
 251
 252         USHORT                      uCap = 0L;
 253
 254         switch(M_PENDATA->m_nCap)
 255         {
 256             case wxCAP_PROJECTING:
 257                 uCap = LINEEND_SQUARE;
 258                 break;
 259
 260             case wxCAP_BUTT:
 261                 uCap = LINEEND_FLAT;
 262                 break;
 263
 264             case wxCAP_ROUND:
 265                 uCap = LINEEND_ROUND;
 266                 break;
 267         }
 268         m_vLineBundle.lColor     = (LONG)vPmColour;
 269         m_vLineBundle.usMixMode  = FM_OVERPAINT;
 270         if (M_PENDATA->m_nWidth < 1)
 271             M_PENDATA->m_nWidth = 1;
 272         m_vLineBundle.fxWidth    = M_PENDATA->m_nWidth;
 273         m_vLineBundle.lGeomWidth = M_PENDATA->m_nWidth;
 274         m_vLineBundle.usType     = uLineType;
 275         m_vLineBundle.usEnd      = uCap;
 276         m_vLineBundle.usJoin     = uJoin;
 277
 278         bOk = ::GpiSetAttrs( M_PENDATA->m_hPen
 279                             ,PRIM_LINE
 280                             ,LBB_COLOR | LBB_MIX_MODE | LBB_WIDTH | LBB_GEOM_WIDTH | LBB_TYPE | LBB_END | LBB_JOIN
 281                             ,0L
 282                             ,&m_vLineBundle
 283                            );
 284         if (!bOk)
 285         {
 286             vError = ::WinGetLastError(vHabmain);
 287             sError = wxPMErrorToStr(vError);
 288             wxLogError(wxT("Can't set Gpi attributes for a LINEBUNDLE. Error: %s\n"), sError.c_str());
 289             return false;
 290         }
 291
 292         ULONG                           flAttrMask = 0L;
 293         ULONG                           flDefMask = 0L;
 294         switch(M_PENDATA->m_nStyle)
 295         {
 296             case wxPENSTYLE_STIPPLE:
 297                 ::GpiSetBitmapId( M_PENDATA->m_hPen
 298                                  ,(USHORT)M_PENDATA->m_vStipple.GetHBITMAP()
 299                                  ,(USHORT)M_PENDATA->m_vStipple.GetId()
 300                                 );
 301                 ::GpiSetPatternSet( M_PENDATA->m_hPen
 302                                    ,(USHORT)M_PENDATA->m_vStipple.GetId()
 303                                   );
 304                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SET | ABB_SYMBOL;
 305                 flDefMask = ABB_REF_POINT;
 306                 break;
 307
 308             case wxPENSTYLE_BDIAGONAL_HATCH:
 309                 m_vAreaBundle.usSymbol = PATSYM_DIAG3;
 310                 m_vAreaBundle.usSet = LCID_DEFAULT;
 311                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 312                 flDefMask = ABB_SET | ABB_REF_POINT;
 313                 break;
 314
 315             case wxPENSTYLE_CROSSDIAG_HATCH:
 316                 m_vAreaBundle.usSymbol = PATSYM_DIAGHATCH;
 317                 m_vAreaBundle.usSet = LCID_DEFAULT;
 318                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 319                 flDefMask = ABB_SET | ABB_REF_POINT;
 320                 break;
 321
 322             case wxPENSTYLE_FDIAGONAL_HATCH:
 323                 m_vAreaBundle.usSymbol = PATSYM_DIAG1;
 324                 m_vAreaBundle.usSet = LCID_DEFAULT;
 325                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 326                 flDefMask = ABB_SET | ABB_REF_POINT;
 327                 break;
 328
 329             case wxPENSTYLE_CROSS_HATCH:
 330                 m_vAreaBundle.usSymbol = PATSYM_HATCH;
 331                 m_vAreaBundle.usSet = LCID_DEFAULT;
 332                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 333                 flDefMask = ABB_SET | ABB_REF_POINT;
 334                 break;
 335
 336             case wxPENSTYLE_HORIZONTAL_HATCH:
 337                 m_vAreaBundle.usSymbol = PATSYM_HORIZ;
 338                 m_vAreaBundle.usSet = LCID_DEFAULT;
 339                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 340                 flDefMask = ABB_SET | ABB_REF_POINT;
 341                 break;
 342
 343             case wxPENSTYLE_VERTICAL_HATCH:
 344                 m_vAreaBundle.usSymbol = PATSYM_VERT;
 345                 m_vAreaBundle.usSet = LCID_DEFAULT;
 346                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 347                 flDefMask = ABB_SET | ABB_REF_POINT;
 348                 break;
 349
 350             default:
 351                 m_vAreaBundle.usSymbol = PATSYM_SOLID;
 352                 m_vAreaBundle.usSet = LCID_DEFAULT;
 353                 flAttrMask = ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE | ABB_SYMBOL;
 354                 flDefMask = ABB_SET | ABB_REF_POINT;
 355                 break;
 356         }
 357
 358         m_vAreaBundle.lColor        = vPmColour;
 359         m_vAreaBundle.lBackColor    = RGB_WHITE;
 360         m_vAreaBundle.usMixMode     = FM_OVERPAINT;
 361         m_vAreaBundle.usBackMixMode = BM_OVERPAINT;
 362
 363         bOk = ::GpiSetAttrs( M_PENDATA->m_hPen
 364                             ,PRIM_AREA
 365                             ,flAttrMask
 366                             ,flDefMask
 367                             ,&m_vAreaBundle
 368                            );
 369         if (!bOk)
 370         {
 371             vError = ::WinGetLastError(vHabmain);
 372             sError = wxPMErrorToStr(vError);
 373             wxLogError(wxT("Can't set Gpi attributes for an AREABUNDLE. Error: %s\n"), sError.c_str());
 374         }
 375
 376         return (bool)bOk;
 377     }
 378     return false;
 379 } // end of wxPen::RealizeResource
 380
 381 WXHANDLE wxPen::GetResourceHandle() const
 382 {
 383     if (!M_PENDATA)
 384         return 0;
 385     else
 386         return (WXHANDLE)M_PENDATA->m_hPen;
 387 } // end of wxPen::GetResourceHandle
 388
 389 bool wxPen::FreeResource( bool WXUNUSED(bForce) )
 390 {
 391     if (M_PENDATA && (M_PENDATA->m_hPen != 0))
 392     {
 393         M_PENDATA->m_hPen = 0;
 394         return true;
 395     }
 396     else return false;
 397 } // end of wxPen::FreeResource
 398
 399 bool wxPen::IsFree() const
 400 {
 401     return (M_PENDATA && M_PENDATA->m_hPen == 0);
 402 }
 403
 404 wxGDIRefData* wxPen::CreateGDIRefData() const
 405 {
 406     return new wxPenRefData;
 407 }
 408
 409 wxGDIRefData* wxPen::CloneGDIRefData(const wxGDIRefData* data) const
 410 {
 411     return new wxPenRefData(*static_cast<const wxPenRefData*>(data));
 412 }
 413
 414 void wxPen::SetColour( const wxColour& rColour )
 415 {
 416     AllocExclusive();
 417     M_PENDATA->m_vColour = rColour;
 418     RealizeResource();
 419 } // end of wxPen::SetColour
 420
 421 void wxPen::SetColour( unsigned char cRed, unsigned char cGreen, unsigned char cBlue)
 422 {
 423     AllocExclusive();
 424     M_PENDATA->m_vColour.Set(cRed, cGreen, cBlue);
 425     RealizeResource();
 426 } // end of wxPen::SetColour
 427
 428 void wxPen::SetPS( HPS hPS )
 429 {
 430     AllocExclusive();
 431     if (M_PENDATA->m_hPen)
 432         ::GpiDestroyPS(M_PENDATA->m_hPen);
 433     M_PENDATA->m_hPen = hPS;
 434     RealizeResource();
 435 } // end of WxWinGdi_CPen::SetPS
 436
 437 void wxPen::SetWidth(
 438   int                               nWidth
 439 )
 440 {
 441     AllocExclusive();
 442     M_PENDATA->m_nWidth = nWidth;
 443     RealizeResource();
 444 } // end of wxPen::SetWidth
 445
 446 void wxPen::SetStyle(
 447   wxPenStyle                               nStyle
 448 )
 449 {
 450     AllocExclusive();
 451     M_PENDATA->m_nStyle = nStyle;
 452     RealizeResource();
 453 } // end of wxPen::SetStyle
 454
 455 void wxPen::SetStipple(
 456   const wxBitmap&                   rStipple
 457 )
 458 {
 459     AllocExclusive();
 460     M_PENDATA->m_vStipple = rStipple;
 461     M_PENDATA->m_nStyle = wxPENSTYLE_STIPPLE;
 462     RealizeResource();
 463 } // end of wxPen::SetStipple
 464
 465 void wxPen::SetDashes( int WXUNUSED(nNbDashes),
 466                        const wxDash* WXUNUSED(pDash) )
 467 {
 468     //
 469     // Does nothing under OS/2
 470     //
 471 } // end of wxPen::SetDashes
 472
 473 void wxPen::SetJoin(
 474   wxPenJoin                               nJoin
 475 )
 476 {
 477     AllocExclusive();
 478     M_PENDATA->m_nJoin = nJoin;
 479     RealizeResource();
 480 } // end of wxPen::SetJoin
 481
 482 void wxPen::SetCap(
 483   wxPenCap                               nCap
 484 )
 485 {
 486     AllocExclusive();
 487     M_PENDATA->m_nCap = nCap;
 488     RealizeResource();
 489 } // end of wxPen::SetCap
 490
 491 wxColour wxPen::GetColour() const
 492 {
 493     wxCHECK_MSG( IsOk(), wxNullColour, wxT("invalid pen") );
 494
 495     return M_PENDATA->m_vColour;
 496 }
 497
 498 int wxPen::GetWidth() const
 499 {
 500     wxCHECK_MSG( IsOk(), -1, wxT("invalid pen") );
 501
 502     return M_PENDATA->m_nWidth;
 503 }
 504
 505 wxPenStyle wxPen::GetStyle() const
 506 {
 507     wxCHECK_MSG( IsOk(), wxPENSTYLE_INVALID, wxT("invalid pen") );
 508
 509     return M_PENDATA->m_nStyle;
 510 }
 511
 512 wxPenJoin wxPen::GetJoin() const
 513 {
 514     wxCHECK_MSG( IsOk(), wxJOIN_INVALID, wxT("invalid pen") );
 515
 516     return M_PENDATA->m_nJoin;
 517 }
 518
 519 wxPenCap wxPen::GetCap() const
 520 {
 521     wxCHECK_MSG( IsOk(), wxCAP_INVALID, wxT("invalid pen") );
 522
 523     return M_PENDATA->m_nCap;
 524 }
 525
 526 int wxPen::GetPS() const
 527 {
 528     wxCHECK_MSG( IsOk(), 0, wxT("invalid pen") );
 529
 530     return M_PENDATA->m_hPen;
 531 }
 532
 533 int wxPen::GetDashes(wxDash** ptr) const
 534 {
 535     wxCHECK_MSG( IsOk(), -1, wxT("invalid pen") );
 536
 537     *ptr = M_PENDATA->m_dash;
 538     return M_PENDATA->m_nbDash;
 539 }
 540
 541 wxDash* wxPen::GetDash() const
 542 {
 543     wxCHECK_MSG( IsOk(), NULL, wxT("invalid pen") );
 544
 545     return M_PENDATA->m_dash;
 546 }
 547
 548 int wxPen::GetDashCount() const
 549 {
 550     wxCHECK_MSG( IsOk(), -1, wxT("invalid pen") );
 551
 552     return M_PENDATA->m_nbDash;
 553 }
 554
 555 wxBitmap* wxPen::GetStipple() const
 556 {
 557     wxCHECK_MSG( IsOk(), NULL, wxT("invalid pen") );
 558
 559     return &(M_PENDATA->m_vStipple);
 560 }
 561
 562 int wx2os2PenStyle(
 563   wxPenStyle                               nWxStyle
 564 )
 565 {
 566     int                             nPMStyle = 0;
 567
 568     switch (nWxStyle)
 569     {
 570         case wxPENSTYLE_DOT:
 571             nPMStyle = LINETYPE_DOT;
 572             break;
 573
 574         case wxPENSTYLE_DOT_DASH:
 575             nPMStyle = LINETYPE_DASHDOT;
 576             break;
 577
 578         case wxPENSTYLE_SHORT_DASH:
 579             nPMStyle = LINETYPE_SHORTDASH;
 580             break;
 581
 582         case wxPENSTYLE_LONG_DASH:
 583             nPMStyle = LINETYPE_LONGDASH;
 584             break;
 585
 586         case wxPENSTYLE_TRANSPARENT:
 587             nPMStyle = LINETYPE_INVISIBLE;
 588             break;
 589
 590         case wxPENSTYLE_USER_DASH:
 591             nPMStyle = LINETYPE_DASHDOUBLEDOT; // We must make a choice... This is mine!
 592             break;
 593
 594         case wxPENSTYLE_SOLID:
 595         default:
 596             nPMStyle = LINETYPE_SOLID;
 597             break;
 598     }
 599     return nPMStyle;
 600 } // end of wx2os2PenStyle