src/gtk/dcclient.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/dcclient.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Chris Breeze
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __VMS
  14 #define XCopyPlane XCOPYPLANE
  15 #endif
  16
  17 #include "wx/dcclient.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/window.h"
  21     #include "wx/log.h"
  22     #include "wx/dcmemory.h"
  23     #include "wx/math.h" // for floating-point functions
  24     #include "wx/image.h"
  25     #include "wx/module.h"
  26 #endif
  27
  28 #include "wx/fontutil.h"
  29 #include "wx/scrolwin.h"
  30
  31 #include "wx/gtk/private.h"
  32
  33 #include <gdk/gdkx.h>
  34
  35 //-----------------------------------------------------------------------------
  36 // local defines
  37 //-----------------------------------------------------------------------------
  38
  39 #define XLOG2DEV(x)    LogicalToDeviceX(x)
  40 #define XLOG2DEVREL(x) LogicalToDeviceXRel(x)
  41 #define YLOG2DEV(y)    LogicalToDeviceY(y)
  42 #define YLOG2DEVREL(y) LogicalToDeviceYRel(y)
  43
  44 #define USE_PAINT_REGION 1
  45
  46 //-----------------------------------------------------------------------------
  47 // local data
  48 //-----------------------------------------------------------------------------
  49
  50 #include "bdiag.xbm"
  51 #include "fdiag.xbm"
  52 #include "cdiag.xbm"
  53 #include "horiz.xbm"
  54 #include "verti.xbm"
  55 #include "cross.xbm"
  56 #define  num_hatches 6
  57
  58 #define IS_15_PIX_HATCH(s) ((s)==wxCROSSDIAG_HATCH || (s)==wxHORIZONTAL_HATCH || (s)==wxVERTICAL_HATCH)
  59 #define IS_16_PIX_HATCH(s) ((s)!=wxCROSSDIAG_HATCH && (s)!=wxHORIZONTAL_HATCH && (s)!=wxVERTICAL_HATCH)
  60
  61
  62 static GdkPixmap  *hatches[num_hatches];
  63 static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;
  64
  65 extern GtkWidget *wxGetRootWindow();
  66
  67 //-----------------------------------------------------------------------------
  68 // constants
  69 //-----------------------------------------------------------------------------
  70
  71 const double RAD2DEG  = 180.0 / M_PI;
  72
  73 // ----------------------------------------------------------------------------
  74 // private functions
  75 // ----------------------------------------------------------------------------
  76
  77 static inline double dmax(double a, double b) { return a > b ? a : b; }
  78 static inline double dmin(double a, double b) { return a < b ? a : b; }
  79
  80 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
  81
  82 //-----------------------------------------------------------------------------
  83 // temporary implementation of the missing GDK function
  84 //-----------------------------------------------------------------------------
  85
  86 #include "gdk/gdkprivate.h"
  87
  88 static
  89 void gdk_wx_draw_bitmap(GdkDrawable  *drawable,
  90                         GdkGC        *gc,
  91                         GdkDrawable  *src,
  92                         gint         xsrc,
  93                         gint         ysrc)
  94 {
  95     wxCHECK_RET( drawable, _T("NULL drawable in gdk_wx_draw_bitmap") );
  96     wxCHECK_RET( src, _T("NULL src in gdk_wx_draw_bitmap") );
  97     wxCHECK_RET( gc, _T("NULL gc in gdk_wx_draw_bitmap") );
  98
  99     gint src_width, src_height;
 100     gdk_drawable_get_size(src, &src_width, &src_height);
 101
 102     XCopyPlane( GDK_WINDOW_XDISPLAY(drawable),
 103                 GDK_WINDOW_XID(src),
 104                 GDK_WINDOW_XID(drawable),
 105                 GDK_GC_XGC(gc),
 106                 xsrc, ysrc,
 107                 src_width, src_height,
 108                 0, 0,
 109                 1 );
 110 }
 111
 112 //-----------------------------------------------------------------------------
 113 // Implement Pool of Graphic contexts. Creating them takes too much time.
 114 //-----------------------------------------------------------------------------
 115
 116 enum wxPoolGCType
 117 {
 118    wxGC_ERROR = 0,
 119    wxTEXT_MONO,
 120    wxBG_MONO,
 121    wxPEN_MONO,
 122    wxBRUSH_MONO,
 123    wxTEXT_COLOUR,
 124    wxBG_COLOUR,
 125    wxPEN_COLOUR,
 126    wxBRUSH_COLOUR,
 127    wxTEXT_SCREEN,
 128    wxBG_SCREEN,
 129    wxPEN_SCREEN,
 130    wxBRUSH_SCREEN
 131 };
 132
 133 struct wxGC
 134 {
 135     GdkGC        *m_gc;
 136     wxPoolGCType  m_type;
 137     bool          m_used;
 138 };
 139
 140 #define GC_POOL_ALLOC_SIZE 100
 141
 142 static int wxGCPoolSize = 0;
 143
 144 static wxGC *wxGCPool = NULL;
 145
 146 static void wxInitGCPool()
 147 {
 148     // This really could wait until the first call to
 149     // wxGetPoolGC, but we will make the first allocation
 150     // now when other initialization is being performed.
 151
 152     // Set initial pool size.
 153     wxGCPoolSize = GC_POOL_ALLOC_SIZE;
 154
 155     // Allocate initial pool.
 156     wxGCPool = (wxGC *)malloc(wxGCPoolSize * sizeof(wxGC));
 157     if (wxGCPool == NULL)
 158     {
 159         // If we cannot malloc, then fail with error
 160         // when debug is enabled.  If debug is not enabled,
 161         // the problem will eventually get caught
 162         // in wxGetPoolGC.
 163         wxFAIL_MSG( wxT("Cannot allocate GC pool") );
 164         return;
 165     }
 166
 167     // Zero initial pool.
 168     memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC));
 169 }
 170
 171 static void wxCleanUpGCPool()
 172 {
 173     for (int i = 0; i < wxGCPoolSize; i++)
 174     {
 175         if (wxGCPool[i].m_gc)
 176             g_object_unref (wxGCPool[i].m_gc);
 177     }
 178
 179     free(wxGCPool);
 180     wxGCPool = NULL;
 181     wxGCPoolSize = 0;
 182 }
 183
 184 static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
 185 {
 186     wxGC *pptr;
 187
 188     // Look for an available GC.
 189     for (int i = 0; i < wxGCPoolSize; i++)
 190     {
 191         if (!wxGCPool[i].m_gc)
 192         {
 193             wxGCPool[i].m_gc = gdk_gc_new( window );
 194             gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE );
 195             wxGCPool[i].m_type = type;
 196             wxGCPool[i].m_used = false;
 197         }
 198         if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type))
 199         {
 200             wxGCPool[i].m_used = true;
 201             return wxGCPool[i].m_gc;
 202         }
 203     }
 204
 205     // We did not find an available GC.
 206     // We need to grow the GC pool.
 207     pptr = (wxGC *)realloc(wxGCPool,
 208         (wxGCPoolSize + GC_POOL_ALLOC_SIZE)*sizeof(wxGC));
 209     if (pptr != NULL)
 210     {
 211         // Initialize newly allocated pool.
 212         wxGCPool = pptr;
 213         memset(&wxGCPool[wxGCPoolSize], 0,
 214             GC_POOL_ALLOC_SIZE*sizeof(wxGC));
 215
 216         // Initialize entry we will return.
 217         wxGCPool[wxGCPoolSize].m_gc = gdk_gc_new( window );
 218         gdk_gc_set_exposures( wxGCPool[wxGCPoolSize].m_gc, FALSE );
 219         wxGCPool[wxGCPoolSize].m_type = type;
 220         wxGCPool[wxGCPoolSize].m_used = true;
 221
 222         // Set new value of pool size.
 223         wxGCPoolSize += GC_POOL_ALLOC_SIZE;
 224
 225         // Return newly allocated entry.
 226         return wxGCPool[wxGCPoolSize-GC_POOL_ALLOC_SIZE].m_gc;
 227     }
 228
 229     // The realloc failed.  Fall through to error.
 230     wxFAIL_MSG( wxT("No GC available") );
 231
 232     return (GdkGC*) NULL;
 233 }
 234
 235 static void wxFreePoolGC( GdkGC *gc )
 236 {
 237     for (int i = 0; i < wxGCPoolSize; i++)
 238     {
 239         if (wxGCPool[i].m_gc == gc)
 240         {
 241             wxGCPool[i].m_used = false;
 242             return;
 243         }
 244     }
 245
 246     wxFAIL_MSG( wxT("Wrong GC") );
 247 }
 248
 249 //-----------------------------------------------------------------------------
 250 // wxWindowDC
 251 //-----------------------------------------------------------------------------
 252
 253 #if wxUSE_NEW_DC
 254 IMPLEMENT_ABSTRACT_CLASS(wxGTKWindowImplDC, wxGTKImplDC)
 255 #else
 256 IMPLEMENT_ABSTRACT_CLASS(wxWindowDC, wxDC)
 257 #endif
 258
 259 #if wxUSE_NEW_DC
 260 wxGTKWindowImplDC::wxGTKWindowImplDC( wxDC *owner ) :
 261    wxGTKImplDC( owner )
 262 #else
 263 wxWindowDC::wxWindowDC()
 264 #endif
 265 {
 266     m_penGC = (GdkGC *) NULL;
 267     m_brushGC = (GdkGC *) NULL;
 268     m_textGC = (GdkGC *) NULL;
 269     m_bgGC = (GdkGC *) NULL;
 270     m_cmap = (GdkColormap *) NULL;
 271     m_isScreenDC = false;
 272     m_owningWindow = (wxWindow *)NULL;
 273     m_context = (PangoContext *)NULL;
 274     m_layout = (PangoLayout *)NULL;
 275     m_fontdesc = (PangoFontDescription *)NULL;
 276 }
 277
 278 #if wxUSE_NEW_DC
 279 wxGTKWindowImplDC::wxGTKWindowImplDC( wxDC *owner, wxWindow *window ) :
 280    wxGTKImplDC( owner )
 281 #else
 282 wxWindowDC::wxWindowDC( wxWindow *window )
 283 #endif
 284 {
 285     wxASSERT_MSG( window, wxT("DC needs a window") );
 286
 287     m_penGC = (GdkGC *) NULL;
 288     m_brushGC = (GdkGC *) NULL;
 289     m_textGC = (GdkGC *) NULL;
 290     m_bgGC = (GdkGC *) NULL;
 291     m_cmap = (GdkColormap *) NULL;
 292     m_owningWindow = (wxWindow *)NULL;
 293     m_isScreenDC = false;
 294     m_font = window->GetFont();
 295
 296     GtkWidget *widget = window->m_wxwindow;
 297
 298     // Some controls don't have m_wxwindow - like wxStaticBox, but the user
 299     // code should still be able to create wxClientDCs for them, so we will
 300     // use the parent window here then.
 301     if ( !widget )
 302     {
 303         window = window->GetParent();
 304         widget = window->m_wxwindow;
 305     }
 306
 307     wxASSERT_MSG( widget, wxT("DC needs a widget") );
 308
 309     m_context = window->GtkGetPangoDefaultContext();
 310     m_layout = pango_layout_new( m_context );
 311     m_fontdesc = pango_font_description_copy( widget->style->font_desc );
 312
 313     m_window = widget->window;
 314
 315     // Window not realized ?
 316     if (!m_window)
 317     {
 318          // Don't report problems as per MSW.
 319          m_ok = true;
 320
 321          return;
 322     }
 323
 324     m_cmap = gtk_widget_get_colormap( widget ? widget : window->m_widget );
 325
 326     SetUpDC();
 327
 328     /* this must be done after SetUpDC, bacause SetUpDC calls the
 329        repective SetBrush, SetPen, SetBackground etc functions
 330        to set up the DC. SetBackground call m_owner->SetBackground
 331        and this might not be desired as the standard dc background
 332        is white whereas a window might assume gray to be the
 333        standard (as e.g. wxStatusBar) */
 334
 335     m_owningWindow = window;
 336
 337     if (m_owningWindow && m_owningWindow->m_wxwindow &&
 338         (m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft))
 339     {
 340         // reverse sense
 341         m_signX = -1;
 342
 343         // origin in the upper right corner
 344         m_deviceOriginX = m_owningWindow->GetClientSize().x;
 345     }
 346 }
 347
 348 wxGTKWindowImplDC::~wxGTKWindowImplDC()
 349 {
 350     Destroy();
 351
 352     if (m_layout)
 353         g_object_unref (m_layout);
 354     if (m_fontdesc)
 355         pango_font_description_free( m_fontdesc );
 356 }
 357
 358 void wxGTKWindowImplDC::SetUpDC( bool isMemDC )
 359 {
 360     m_ok = true;
 361
 362     wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
 363
 364     bool done = false;
 365
 366     if (isMemDC)
 367     {
 368         wxGTKMemoryImplDC *mem_dc = (wxGTKMemoryImplDC*) this;
 369         if (mem_dc->GetSelectedBitmap().GetDepth() == 1)
 370         {
 371             m_penGC = wxGetPoolGC( m_window, wxPEN_MONO );
 372             m_brushGC = wxGetPoolGC( m_window, wxBRUSH_MONO );
 373             m_textGC = wxGetPoolGC( m_window, wxTEXT_MONO );
 374             m_bgGC = wxGetPoolGC( m_window, wxBG_MONO );
 375             done = true;
 376         }
 377     }
 378
 379     if (!done)
 380     {
 381         if (m_isScreenDC)
 382         {
 383             m_penGC = wxGetPoolGC( m_window, wxPEN_SCREEN );
 384             m_brushGC = wxGetPoolGC( m_window, wxBRUSH_SCREEN );
 385             m_textGC = wxGetPoolGC( m_window, wxTEXT_SCREEN );
 386             m_bgGC = wxGetPoolGC( m_window, wxBG_SCREEN );
 387         }
 388         else
 389         {
 390             m_penGC = wxGetPoolGC( m_window, wxPEN_COLOUR );
 391             m_brushGC = wxGetPoolGC( m_window, wxBRUSH_COLOUR );
 392             m_textGC = wxGetPoolGC( m_window, wxTEXT_COLOUR );
 393             m_bgGC = wxGetPoolGC( m_window, wxBG_COLOUR );
 394         }
 395     }
 396
 397     /* background colour */
 398     m_backgroundBrush = *wxWHITE_BRUSH;
 399     m_backgroundBrush.GetColour().CalcPixel( m_cmap );
 400     const GdkColor *bg_col = m_backgroundBrush.GetColour().GetColor();
 401
 402     /* m_textGC */
 403     m_textForegroundColour.CalcPixel( m_cmap );
 404     gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
 405
 406     m_textBackgroundColour.CalcPixel( m_cmap );
 407     gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
 408
 409     gdk_gc_set_fill( m_textGC, GDK_SOLID );
 410
 411     gdk_gc_set_colormap( m_textGC, m_cmap );
 412
 413     /* m_penGC */
 414     m_pen.GetColour().CalcPixel( m_cmap );
 415     gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
 416     gdk_gc_set_background( m_penGC, bg_col );
 417
 418     gdk_gc_set_line_attributes( m_penGC, 0, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_ROUND );
 419
 420     /* m_brushGC */
 421     m_brush.GetColour().CalcPixel( m_cmap );
 422     gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
 423     gdk_gc_set_background( m_brushGC, bg_col );
 424
 425     gdk_gc_set_fill( m_brushGC, GDK_SOLID );
 426
 427     /* m_bgGC */
 428     gdk_gc_set_background( m_bgGC, bg_col );
 429     gdk_gc_set_foreground( m_bgGC, bg_col );
 430
 431     gdk_gc_set_fill( m_bgGC, GDK_SOLID );
 432
 433     /* ROPs */
 434     gdk_gc_set_function( m_textGC, GDK_COPY );
 435     gdk_gc_set_function( m_brushGC, GDK_COPY );
 436     gdk_gc_set_function( m_penGC, GDK_COPY );
 437
 438     /* clipping */
 439     gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
 440     gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
 441     gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
 442     gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
 443
 444     if (!hatch_bitmap)
 445     {
 446         hatch_bitmap    = hatches;
 447         hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height );
 448         hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height );
 449         hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height );
 450         hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height );
 451         hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height );
 452         hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height );
 453     }
 454 }
 455
 456 void wxGTKWindowImplDC::DoGetSize( int* width, int* height ) const
 457 {
 458     wxCHECK_RET( m_owningWindow, _T("GetSize() doesn't work without window") );
 459
 460     m_owningWindow->GetSize(width, height);
 461 }
 462
 463 bool wxGTKWindowImplDC::DoFloodFill(wxCoord x, wxCoord y,
 464                              const wxColour& col, int style)
 465 {
 466 #if wxUSE_IMAGE
 467     extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
 468                               const wxColour & col, int style);
 469
 470     return wxDoFloodFill( GetOwner(), x, y, col, style);
 471 #else
 472     wxUnusedVar(x);
 473     wxUnusedVar(y);
 474     wxUnusedVar(col);
 475     wxUnusedVar(style);
 476
 477     return false;
 478 #endif
 479 }
 480
 481 bool wxGTKWindowImplDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
 482 {
 483 #if wxUSE_IMAGE
 484     // Generic (and therefore rather inefficient) method.
 485     // Could be improved.
 486     wxMemoryDC memdc;
 487     wxBitmap bitmap(1, 1);
 488     memdc.SelectObject(bitmap);
 489     memdc.Blit(0, 0, 1, 1, (wxDC*) this, x1, y1);
 490     memdc.SelectObject(wxNullBitmap);
 491
 492     wxImage image = bitmap.ConvertToImage();
 493     col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
 494     return true;
 495 #else // !wxUSE_IMAGE
 496     wxUnusedVar(x1);
 497     wxUnusedVar(y1);
 498     wxUnusedVar(col);
 499
 500     return false;
 501 #endif // wxUSE_IMAGE/!wxUSE_IMAGE
 502 }
 503
 504 void wxGTKWindowImplDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
 505 {
 506     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 507
 508     if (m_pen.GetStyle() != wxTRANSPARENT)
 509     {
 510         if (m_window)
 511             gdk_draw_line( m_window, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );
 512
 513         CalcBoundingBox(x1, y1);
 514         CalcBoundingBox(x2, y2);
 515     }
 516 }
 517
 518 void wxGTKWindowImplDC::DoCrossHair( wxCoord x, wxCoord y )
 519 {
 520     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 521
 522     if (m_pen.GetStyle() != wxTRANSPARENT)
 523     {
 524         int w = 0;
 525         int h = 0;
 526         GetOwner()->GetSize( &w, &h );
 527         wxCoord xx = XLOG2DEV(x);
 528         wxCoord yy = YLOG2DEV(y);
 529         if (m_window)
 530         {
 531             gdk_draw_line( m_window, m_penGC, 0, yy, XLOG2DEVREL(w), yy );
 532             gdk_draw_line( m_window, m_penGC, xx, 0, xx, YLOG2DEVREL(h) );
 533         }
 534     }
 535 }
 536
 537 void wxGTKWindowImplDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
 538                             wxCoord xc, wxCoord yc )
 539 {
 540     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 541
 542     wxCoord xx1 = XLOG2DEV(x1);
 543     wxCoord yy1 = YLOG2DEV(y1);
 544     wxCoord xx2 = XLOG2DEV(x2);
 545     wxCoord yy2 = YLOG2DEV(y2);
 546     wxCoord xxc = XLOG2DEV(xc);
 547     wxCoord yyc = YLOG2DEV(yc);
 548     double dx = xx1 - xxc;
 549     double dy = yy1 - yyc;
 550     double radius = sqrt((double)(dx*dx+dy*dy));
 551     wxCoord   r      = (wxCoord)radius;
 552     double radius1, radius2;
 553
 554     if (xx1 == xx2 && yy1 == yy2)
 555     {
 556         radius1 = 0.0;
 557         radius2 = 360.0;
 558     }
 559     else if ( wxIsNullDouble(radius) )
 560     {
 561         radius1 =
 562         radius2 = 0.0;
 563     }
 564     else
 565     {
 566         radius1 = (xx1 - xxc == 0) ?
 567             (yy1 - yyc < 0) ? 90.0 : -90.0 :
 568             -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG;
 569         radius2 = (xx2 - xxc == 0) ?
 570             (yy2 - yyc < 0) ? 90.0 : -90.0 :
 571             -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
 572     }
 573     wxCoord alpha1 = wxCoord(radius1 * 64.0);
 574     wxCoord alpha2 = wxCoord((radius2 - radius1) * 64.0);
 575     while (alpha2 <= 0) alpha2 += 360*64;
 576     while (alpha1 > 360*64) alpha1 -= 360*64;
 577
 578     if (m_window)
 579     {
 580         if (m_brush.GetStyle() != wxTRANSPARENT)
 581         {
 582             if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
 583             {
 584                 gdk_gc_set_ts_origin( m_textGC,
 585                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 586                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 587                 gdk_draw_arc( m_window, m_textGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 588                 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
 589             } else
 590             if (IS_15_PIX_HATCH(m_brush.GetStyle()))
 591             {
 592                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
 593                 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 594                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 595             } else
 596             if (IS_16_PIX_HATCH(m_brush.GetStyle()))
 597             {
 598                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
 599                 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 600                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 601             } else
 602             if (m_brush.GetStyle() == wxSTIPPLE)
 603             {
 604                 gdk_gc_set_ts_origin( m_brushGC,
 605                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 606                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 607                 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 608                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 609             }
 610             else
 611             {
 612                 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 613             }
 614         }
 615
 616         if (m_pen.GetStyle() != wxTRANSPARENT)
 617         {
 618             gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 619
 620             if ((m_brush.GetStyle() != wxTRANSPARENT) && (alpha2 - alpha1 != 360*64))
 621             {
 622                 gdk_draw_line( m_window, m_penGC, xx1, yy1, xxc, yyc );
 623                 gdk_draw_line( m_window, m_penGC, xxc, yyc, xx2, yy2 );
 624             }
 625         }
 626     }
 627
 628     CalcBoundingBox (x1, y1);
 629     CalcBoundingBox (x2, y2);
 630 }
 631
 632 void wxGTKWindowImplDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
 633 {
 634     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 635
 636     wxCoord xx = XLOG2DEV(x);
 637     wxCoord yy = YLOG2DEV(y);
 638     wxCoord ww = m_signX * XLOG2DEVREL(width);
 639     wxCoord hh = m_signY * YLOG2DEVREL(height);
 640
 641     // CMB: handle -ve width and/or height
 642     if (ww < 0) { ww = -ww; xx = xx - ww; }
 643     if (hh < 0) { hh = -hh; yy = yy - hh; }
 644
 645     if (m_window)
 646     {
 647         wxCoord start = wxCoord(sa * 64.0);
 648         wxCoord end = wxCoord((ea-sa) * 64.0);
 649
 650         if (m_brush.GetStyle() != wxTRANSPARENT)
 651         {
 652             if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
 653             {
 654                 gdk_gc_set_ts_origin( m_textGC,
 655                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 656                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 657                 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, ww, hh, start, end );
 658                 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
 659             } else
 660             if (IS_15_PIX_HATCH(m_brush.GetStyle()))
 661             {
 662                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
 663                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
 664                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 665             } else
 666             if (IS_16_PIX_HATCH(m_brush.GetStyle()))
 667             {
 668                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
 669                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
 670                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 671             } else
 672             if (m_brush.GetStyle() == wxSTIPPLE)
 673             {
 674                 gdk_gc_set_ts_origin( m_brushGC,
 675                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 676                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 677                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
 678                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 679             }
 680             else
 681             {
 682                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
 683             }
 684         }
 685
 686         if (m_pen.GetStyle() != wxTRANSPARENT)
 687             gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end );
 688     }
 689
 690     CalcBoundingBox (x, y);
 691     CalcBoundingBox (x + width, y + height);
 692 }
 693
 694 void wxGTKWindowImplDC::DoDrawPoint( wxCoord x, wxCoord y )
 695 {
 696     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 697
 698     if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window)
 699         gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
 700
 701     CalcBoundingBox (x, y);
 702 }
 703
 704 void wxGTKWindowImplDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
 705 {
 706     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 707
 708     if (m_pen.GetStyle() == wxTRANSPARENT) return;
 709     if (n <= 0) return;
 710
 711     //Check, if scaling is necessary
 712     const bool doScale =
 713         xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
 714
 715     // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
 716     GdkPoint* gpts = reinterpret_cast<GdkPoint*>(points);
 717
 718     if (doScale)
 719         gpts = new GdkPoint[n];
 720
 721     for (int i = 0; i < n; i++)
 722     {
 723         if (doScale)
 724         {
 725             gpts[i].x = XLOG2DEV(points[i].x + xoffset);
 726             gpts[i].y = YLOG2DEV(points[i].y + yoffset);
 727         }
 728         CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
 729     }
 730
 731     if (m_window)
 732         gdk_draw_lines( m_window, m_penGC, gpts, n);
 733
 734     if (doScale)
 735         delete[] gpts;
 736 }
 737
 738 void wxGTKWindowImplDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) )
 739 {
 740     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 741
 742     if (n <= 0) return;
 743
 744     //Check, if scaling is necessary
 745     const bool doScale =
 746         xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
 747
 748     // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
 749     GdkPoint* gdkpoints = reinterpret_cast<GdkPoint*>(points);
 750
 751     if (doScale)
 752         gdkpoints = new GdkPoint[n];
 753
 754     int i;
 755     for (i = 0 ; i < n ; i++)
 756     {
 757         if (doScale)
 758         {
 759             gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
 760             gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
 761         }
 762         CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
 763     }
 764
 765     if (m_window)
 766     {
 767         if (m_brush.GetStyle() != wxTRANSPARENT)
 768         {
 769             if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
 770             {
 771                 gdk_gc_set_ts_origin( m_textGC,
 772                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 773                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 774                 gdk_draw_polygon( m_window, m_textGC, TRUE, gdkpoints, n );
 775                 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
 776             } else
 777             if (IS_15_PIX_HATCH(m_brush.GetStyle()))
 778             {
 779                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
 780                 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
 781                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 782             } else
 783             if (IS_16_PIX_HATCH(m_brush.GetStyle()))
 784             {
 785                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
 786                 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
 787                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 788             } else
 789             if (m_brush.GetStyle() == wxSTIPPLE)
 790             {
 791                 gdk_gc_set_ts_origin( m_brushGC,
 792                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 793                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 794                 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
 795                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 796             }
 797             else
 798             {
 799                 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
 800             }
 801         }
 802
 803         if (m_pen.GetStyle() != wxTRANSPARENT)
 804         {
 805 /*
 806             for (i = 0 ; i < n ; i++)
 807             {
 808                 gdk_draw_line( m_window, m_penGC,
 809                                gdkpoints[i%n].x,
 810                                gdkpoints[i%n].y,
 811                                gdkpoints[(i+1)%n].x,
 812                                gdkpoints[(i+1)%n].y);
 813             }
 814 */
 815             gdk_draw_polygon( m_window, m_penGC, FALSE, gdkpoints, n );
 816
 817         }
 818     }
 819
 820     if (doScale)
 821         delete[] gdkpoints;
 822 }
 823
 824 void wxGTKWindowImplDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 825 {
 826     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 827
 828     wxCoord xx = XLOG2DEV(x);
 829     wxCoord yy = YLOG2DEV(y);
 830     wxCoord ww = m_signX * XLOG2DEVREL(width);
 831     wxCoord hh = m_signY * YLOG2DEVREL(height);
 832
 833     // CMB: draw nothing if transformed w or h is 0
 834     if (ww == 0 || hh == 0) return;
 835
 836     // CMB: handle -ve width and/or height
 837     if (ww < 0) { ww = -ww; xx = xx - ww; }
 838     if (hh < 0) { hh = -hh; yy = yy - hh; }
 839
 840     if (m_window)
 841     {
 842         if (m_brush.GetStyle() != wxTRANSPARENT)
 843         {
 844             if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
 845             {
 846                 gdk_gc_set_ts_origin( m_textGC,
 847                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 848                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 849                 gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy, ww, hh );
 850                 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
 851             } else
 852             if (IS_15_PIX_HATCH(m_brush.GetStyle()))
 853             {
 854                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
 855                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
 856                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 857             } else
 858             if (IS_16_PIX_HATCH(m_brush.GetStyle()))
 859             {
 860                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
 861                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
 862                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 863             } else
 864             if (m_brush.GetStyle() == wxSTIPPLE)
 865             {
 866                 gdk_gc_set_ts_origin( m_brushGC,
 867                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 868                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 869                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
 870                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 871             }
 872             else
 873             {
 874                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
 875             }
 876         }
 877
 878         if (m_pen.GetStyle() != wxTRANSPARENT)
 879         {
 880 #if 1
 881             if ((m_pen.GetWidth() == 2) && (m_pen.GetCap() == wxCAP_ROUND) &&
 882                 (m_pen.GetJoin() == wxJOIN_ROUND) && (m_pen.GetStyle() == wxSOLID))
 883             {
 884                 // Use 2 1-line rects instead
 885                 gdk_gc_set_line_attributes( m_penGC, 1, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
 886
 887                 if (m_signX == -1)
 888                 {
 889                     // Different for RTL
 890                     gdk_draw_rectangle( m_window, m_penGC, FALSE, xx+1, yy, ww-2, hh-2 );
 891                     gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy-1, ww, hh );
 892                 }
 893                 else
 894                 {
 895                     gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-2, hh-2 );
 896                     gdk_draw_rectangle( m_window, m_penGC, FALSE, xx-1, yy-1, ww, hh );
 897                 }
 898
 899                 // reset
 900                 gdk_gc_set_line_attributes( m_penGC, 2, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
 901             }
 902             else
 903 #endif
 904             {
 905                 // Just use X11 for other cases
 906                 gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
 907             }
 908         }
 909     }
 910
 911     CalcBoundingBox( x, y );
 912     CalcBoundingBox( x + width, y + height );
 913 }
 914
 915 void wxGTKWindowImplDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
 916 {
 917     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 918
 919     if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
 920
 921     wxCoord xx = XLOG2DEV(x);
 922     wxCoord yy = YLOG2DEV(y);
 923     wxCoord ww = m_signX * XLOG2DEVREL(width);
 924     wxCoord hh = m_signY * YLOG2DEVREL(height);
 925     wxCoord rr = XLOG2DEVREL((wxCoord)radius);
 926
 927     // CMB: handle -ve width and/or height
 928     if (ww < 0) { ww = -ww; xx = xx - ww; }
 929     if (hh < 0) { hh = -hh; yy = yy - hh; }
 930
 931     // CMB: if radius is zero use DrawRectangle() instead to avoid
 932     // X drawing errors with small radii
 933     if (rr == 0)
 934     {
 935         DoDrawRectangle( x, y, width, height );
 936         return;
 937     }
 938
 939     // CMB: draw nothing if transformed w or h is 0
 940     if (ww == 0 || hh == 0) return;
 941
 942     // CMB: adjust size if outline is drawn otherwise the result is
 943     // 1 pixel too wide and high
 944     if (m_pen.GetStyle() != wxTRANSPARENT)
 945     {
 946         ww--;
 947         hh--;
 948     }
 949
 950     if (m_window)
 951     {
 952         // CMB: ensure dd is not larger than rectangle otherwise we
 953         // get an hour glass shape
 954         wxCoord dd = 2 * rr;
 955         if (dd > ww) dd = ww;
 956         if (dd > hh) dd = hh;
 957         rr = dd / 2;
 958
 959         if (m_brush.GetStyle() != wxTRANSPARENT)
 960         {
 961             if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
 962             {
 963                 gdk_gc_set_ts_origin( m_textGC,
 964                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
 965                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
 966                 gdk_draw_rectangle( m_window, m_textGC, TRUE, xx+rr, yy, ww-dd+1, hh );
 967                 gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
 968                 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
 969                 gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
 970                 gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
 971                 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
 972                 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
 973             } else
 974             if (IS_15_PIX_HATCH(m_brush.GetStyle()))
 975             {
 976                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
 977                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
 978                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
 979                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
 980                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
 981                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
 982                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
 983                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 984             } else
 985             if (IS_16_PIX_HATCH(m_brush.GetStyle()))
 986             {
 987                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
 988                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
 989                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
 990                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
 991                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
 992                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
 993                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
 994                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
 995             } else
 996             if (m_brush.GetStyle() == wxSTIPPLE)
 997             {
 998                 gdk_gc_set_ts_origin( m_brushGC,
 999                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
1000                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
1001                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
1002                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
1003                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
1004                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
1005                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
1006                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
1007                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1008             }
1009             else
1010             {
1011                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
1012                 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
1013                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
1014                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
1015                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
1016                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
1017             }
1018         }
1019
1020         if (m_pen.GetStyle() != wxTRANSPARENT)
1021         {
1022             gdk_draw_line( m_window, m_penGC, xx+rr+1, yy, xx+ww-rr, yy );
1023             gdk_draw_line( m_window, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh );
1024             gdk_draw_line( m_window, m_penGC, xx, yy+rr+1, xx, yy+hh-rr );
1025             gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr+1, xx+ww, yy+hh-rr );
1026             gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 );
1027             gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
1028             gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
1029             gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
1030         }
1031     }
1032
1033     // this ignores the radius
1034     CalcBoundingBox( x, y );
1035     CalcBoundingBox( x + width, y + height );
1036 }
1037
1038 void wxGTKWindowImplDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
1039 {
1040     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1041
1042     wxCoord xx = XLOG2DEV(x);
1043     wxCoord yy = YLOG2DEV(y);
1044     wxCoord ww = m_signX * XLOG2DEVREL(width);
1045     wxCoord hh = m_signY * YLOG2DEVREL(height);
1046
1047     // CMB: handle -ve width and/or height
1048     if (ww < 0) { ww = -ww; xx = xx - ww; }
1049     if (hh < 0) { hh = -hh; yy = yy - hh; }
1050
1051     if (m_window)
1052     {
1053         if (m_brush.GetStyle() != wxTRANSPARENT)
1054         {
1055             if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
1056             {
1057                 gdk_gc_set_ts_origin( m_textGC,
1058                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
1059                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
1060                 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1061                 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
1062             } else
1063             if (IS_15_PIX_HATCH(m_brush.GetStyle()))
1064             {
1065                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
1066                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1067                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1068             } else
1069             if (IS_16_PIX_HATCH(m_brush.GetStyle()))
1070             {
1071                 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
1072                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1073                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1074             } else
1075             if (m_brush.GetStyle() == wxSTIPPLE)
1076             {
1077                 gdk_gc_set_ts_origin( m_brushGC,
1078                                       m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
1079                                       m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
1080                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1081                 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1082             }
1083             else
1084             {
1085                 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1086             }
1087         }
1088
1089         if (m_pen.GetStyle() != wxTRANSPARENT)
1090             gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
1091     }
1092
1093     CalcBoundingBox( x, y );
1094     CalcBoundingBox( x + width, y + height );
1095 }
1096
1097 void wxGTKWindowImplDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
1098 {
1099     // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
1100     DoDrawBitmap( (const wxBitmap&)icon, x, y, true );
1101 }
1102
1103 void wxGTKWindowImplDC::DoDrawBitmap( const wxBitmap &bitmap,
1104                                wxCoord x, wxCoord y,
1105                                bool useMask )
1106 {
1107     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1108
1109     wxCHECK_RET( bitmap.IsOk(), wxT("invalid bitmap") );
1110
1111     bool is_mono = bitmap.GetDepth() == 1;
1112
1113     // scale/translate size and position
1114     int xx = XLOG2DEV(x);
1115     int yy = YLOG2DEV(y);
1116
1117     int w = bitmap.GetWidth();
1118     int h = bitmap.GetHeight();
1119
1120     if (m_owningWindow && m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft)
1121         xx -= w;
1122
1123     CalcBoundingBox( x, y );
1124     CalcBoundingBox( x + w, y + h );
1125
1126     if (!m_window) return;
1127
1128     int ww = XLOG2DEVREL(w);
1129     int hh = YLOG2DEVREL(h);
1130
1131     // compare to current clipping region
1132     if (!m_currentClippingRegion.IsNull())
1133     {
1134         wxRegion tmp( xx,yy,ww,hh );
1135         tmp.Intersect( m_currentClippingRegion );
1136         if (tmp.IsEmpty())
1137             return;
1138     }
1139
1140     // scale bitmap if required
1141     wxBitmap use_bitmap = bitmap;
1142     if ((w != ww) || (h != hh))
1143         use_bitmap = use_bitmap.Rescale( 0, 0, ww, hh, ww, hh );
1144
1145     // apply mask if any
1146     GdkBitmap *mask = (GdkBitmap *) NULL;
1147     if (useMask && use_bitmap.GetMask())
1148         mask = use_bitmap.GetMask()->GetBitmap();
1149
1150     GdkGC* use_gc = is_mono ? m_textGC : m_penGC;
1151
1152     GdkBitmap *new_mask = (GdkBitmap*) NULL;
1153
1154     if (mask != NULL)
1155     {
1156         if (!m_currentClippingRegion.IsNull())
1157         {
1158             GdkColor col;
1159             new_mask = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, 1 );
1160             GdkGC *gc = gdk_gc_new( new_mask );
1161             col.pixel = 0;
1162             gdk_gc_set_foreground( gc, &col );
1163             gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
1164             col.pixel = 0;
1165             gdk_gc_set_background( gc, &col );
1166             col.pixel = 1;
1167             gdk_gc_set_foreground( gc, &col );
1168             gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
1169             gdk_gc_set_clip_origin( gc, -xx, -yy );
1170             gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
1171             gdk_gc_set_stipple( gc, mask );
1172             gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
1173             mask = new_mask;
1174             g_object_unref (gc);
1175         }
1176
1177         gdk_gc_set_clip_mask(use_gc, mask);
1178         gdk_gc_set_clip_origin(use_gc, xx, yy);
1179     }
1180
1181     // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1182     // drawing a mono-bitmap (XBitmap) we use the current text GC
1183     if (is_mono)
1184     {
1185         GdkPixmap *bitmap2 = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, -1 );
1186         GdkGC *gc = gdk_gc_new( bitmap2 );
1187         gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
1188         gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
1189         gdk_wx_draw_bitmap(bitmap2, gc, use_bitmap.GetPixmap(), 0, 0);
1190
1191         gdk_draw_drawable(m_window, use_gc, bitmap2, 0, 0, xx, yy, -1, -1);
1192
1193         g_object_unref (bitmap2);
1194         g_object_unref (gc);
1195     }
1196     else
1197     {
1198         if (use_bitmap.HasPixbuf())
1199         {
1200             gdk_draw_pixbuf(m_window, use_gc,
1201                             use_bitmap.GetPixbuf(),
1202                             0, 0, xx, yy, -1, -1,
1203                             GDK_RGB_DITHER_NORMAL, xx, yy);
1204         }
1205         else
1206         {
1207             gdk_draw_drawable(m_window, use_gc,
1208                               use_bitmap.GetPixmap(),
1209                               0, 0, xx, yy, -1, -1);
1210         }
1211     }
1212
1213     // remove mask again if any
1214     if (mask != NULL)
1215     {
1216         gdk_gc_set_clip_mask(use_gc, NULL);
1217         gdk_gc_set_clip_origin(use_gc, 0, 0);
1218         if (!m_currentClippingRegion.IsNull())
1219             gdk_gc_set_clip_region(use_gc, m_currentClippingRegion.GetRegion());
1220         if (new_mask != NULL)
1221             g_object_unref(new_mask);
1222     }
1223 }
1224
1225 bool wxGTKWindowImplDC::DoBlit( wxCoord xdest, wxCoord ydest,
1226                          wxCoord width, wxCoord height,
1227                          wxDC *source,
1228                          wxCoord xsrc, wxCoord ysrc,
1229                          int logical_func,
1230                          bool useMask,
1231                          wxCoord xsrcMask, wxCoord ysrcMask )
1232 {
1233     wxCHECK_MSG( IsOk(), false, wxT("invalid window dc") );
1234
1235     wxCHECK_MSG( source, false, wxT("invalid source dc") );
1236
1237     if (!m_window) return false;
1238
1239     // transform the source DC coords to the device ones
1240     xsrc = source->LogicalToDeviceX(xsrc);
1241     ysrc = source->LogicalToDeviceY(ysrc);
1242
1243     wxBitmap selected;
1244     wxMemoryDC *memDC = wxDynamicCast(source, wxMemoryDC);
1245     if ( memDC )
1246     {
1247         selected = memDC->GetSelectedBitmap();
1248         if ( !selected.IsOk() )
1249             return false;
1250     }
1251
1252     bool use_bitmap_method = false;
1253     bool is_mono = false;
1254
1255     if (xsrcMask == -1 && ysrcMask == -1)
1256     {
1257         xsrcMask = xsrc;
1258         ysrcMask = ysrc;
1259     }
1260
1261     if (selected.IsOk())
1262     {
1263         is_mono = (selected.GetDepth() == 1);
1264
1265         // we use the "XCopyArea" way to copy a memory dc into
1266         // a different window if the memory dc BOTH
1267         // a) doesn't have any mask or its mask isn't used
1268         // b) it is clipped
1269         // c) is not 1-bit
1270
1271         if (useMask && (selected.GetMask()))
1272         {
1273             // we HAVE TO use the direct way for memory dcs
1274             // that have mask since the XCopyArea doesn't know
1275             // about masks
1276             use_bitmap_method = true;
1277         }
1278         else if (is_mono)
1279         {
1280             // we HAVE TO use the direct way for memory dcs
1281             // that are bitmaps because XCopyArea doesn't cope
1282             // with different bit depths
1283             use_bitmap_method = true;
1284         }
1285         else if ((xsrc == 0) && (ysrc == 0) &&
1286                  (width == selected.GetWidth()) &&
1287                  (height == selected.GetHeight()))
1288         {
1289             // we SHOULD use the direct way if all of the bitmap
1290             // in the memory dc is copied in which case XCopyArea
1291             // wouldn't be able able to boost performace by reducing
1292             // the area to be scaled
1293             use_bitmap_method = true;
1294         }
1295     }
1296
1297     CalcBoundingBox( xdest, ydest );
1298     CalcBoundingBox( xdest + width, ydest + height );
1299
1300     // scale/translate size and position
1301     wxCoord xx = XLOG2DEV(xdest);
1302     wxCoord yy = YLOG2DEV(ydest);
1303
1304     wxCoord ww = XLOG2DEVREL(width);
1305     wxCoord hh = YLOG2DEVREL(height);
1306
1307     // compare to current clipping region
1308     if (!m_currentClippingRegion.IsNull())
1309     {
1310         wxRegion tmp( xx,yy,ww,hh );
1311         tmp.Intersect( m_currentClippingRegion );
1312         if (tmp.IsEmpty())
1313             return true;
1314     }
1315
1316     int old_logical_func = m_logicalFunction;
1317     SetLogicalFunction( logical_func );
1318
1319     if (use_bitmap_method)
1320     {
1321         // scale/translate bitmap size
1322         wxCoord bm_width = selected.GetWidth();
1323         wxCoord bm_height = selected.GetHeight();
1324
1325         // Get clip coords for the bitmap. If we don't
1326         // use wxBitmap::Rescale(), which can clip the
1327         // bitmap, these are the same as the original
1328         // coordinates
1329         wxCoord cx = xx;
1330         wxCoord cy = yy;
1331         wxCoord cw = ww;
1332         wxCoord ch = hh;
1333
1334         // interpret userscale of src too
1335         double xsc,ysc;
1336         memDC->GetUserScale(&xsc,&ysc);
1337         bm_width = (int) (bm_width / xsc);
1338         bm_height = (int) (bm_height / ysc);
1339
1340         wxCoord bm_ww = XLOG2DEVREL( bm_width );
1341         wxCoord bm_hh = YLOG2DEVREL( bm_height );
1342
1343         // Scale bitmap if required
1344         wxBitmap use_bitmap = selected;
1345         if ((selected.GetWidth()!= bm_ww) || ( selected.GetHeight()!= bm_hh))
1346         {
1347             // This indicates that the blitting code below will get
1348             // a clipped bitmap and therefore needs to move the origin
1349             // accordingly
1350             wxRegion tmp( xx,yy,ww,hh );
1351             if (!m_currentClippingRegion.IsNull())
1352                 tmp.Intersect( m_currentClippingRegion );
1353             tmp.GetBox(cx,cy,cw,ch);
1354
1355             // Scale and clipped bitmap
1356             use_bitmap = selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh);
1357         }
1358
1359         // apply mask if any
1360         GdkBitmap *mask = (GdkBitmap *) NULL;
1361         if (useMask && use_bitmap.GetMask())
1362             mask = use_bitmap.GetMask()->GetBitmap();
1363
1364         GdkGC* use_gc = is_mono ? m_textGC : m_penGC;
1365
1366         GdkBitmap *new_mask = (GdkBitmap*) NULL;
1367
1368         if (mask != NULL)
1369         {
1370             if (!m_currentClippingRegion.IsNull())
1371             {
1372                 GdkColor col;
1373                 new_mask = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, 1 );
1374                 GdkGC *gc = gdk_gc_new( new_mask );
1375                 col.pixel = 0;
1376                 gdk_gc_set_foreground( gc, &col );
1377                 gdk_gc_set_ts_origin( gc, -xsrcMask, -ysrcMask);
1378                 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
1379                 col.pixel = 0;
1380                 gdk_gc_set_background( gc, &col );
1381                 col.pixel = 1;
1382                 gdk_gc_set_foreground( gc, &col );
1383                 gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
1384                 // was: gdk_gc_set_clip_origin( gc, -xx, -yy );
1385                 gdk_gc_set_clip_origin( gc, -cx, -cy );
1386                 gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
1387                 gdk_gc_set_stipple( gc, mask );
1388                 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
1389                 mask = new_mask;
1390                 g_object_unref (gc);
1391             }
1392
1393             gdk_gc_set_clip_mask(use_gc, mask);
1394             if (new_mask != NULL)
1395                 gdk_gc_set_clip_origin(use_gc, cx, cy);
1396             else
1397                 gdk_gc_set_clip_origin(use_gc, cx - xsrcMask, cy - ysrcMask);
1398         }
1399
1400         // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1401         // drawing a mono-bitmap (XBitmap) we use the current text GC
1402
1403         if (is_mono)
1404         {
1405             GdkPixmap *bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, -1 );
1406             GdkGC *gc = gdk_gc_new( bitmap );
1407             gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
1408             gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
1409             gdk_wx_draw_bitmap(bitmap, gc, use_bitmap.GetPixmap(), 0, 0);
1410
1411             gdk_draw_drawable(m_window, use_gc, bitmap, xsrc, ysrc, cx, cy, cw, ch);
1412
1413             g_object_unref (bitmap);
1414             g_object_unref (gc);
1415         }
1416         else
1417         {
1418             // was: gdk_draw_drawable( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
1419             gdk_draw_drawable(m_window, use_gc, use_bitmap.GetPixmap(), xsrc, ysrc, cx, cy, cw, ch);
1420         }
1421
1422         // remove mask again if any
1423         if (mask != NULL)
1424         {
1425             gdk_gc_set_clip_mask(use_gc, NULL);
1426             gdk_gc_set_clip_origin(use_gc, 0, 0);
1427             if (!m_currentClippingRegion.IsNull())
1428                 gdk_gc_set_clip_region(use_gc, m_currentClippingRegion.GetRegion());
1429         }
1430
1431         if (new_mask)
1432             g_object_unref (new_mask);
1433     }
1434     else // use_bitmap_method
1435     {
1436         if (selected.IsOk() && ((width != ww) || (height != hh)))
1437         {
1438             // get clip coords
1439             wxRegion tmp( xx,yy,ww,hh );
1440             tmp.Intersect( m_currentClippingRegion );
1441             wxCoord cx,cy,cw,ch;
1442             tmp.GetBox(cx,cy,cw,ch);
1443
1444             // rescale bitmap
1445             wxBitmap bitmap = selected.Rescale( cx-xx, cy-yy, cw, ch, ww, hh );
1446
1447             // draw scaled bitmap
1448             // was: gdk_draw_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
1449             gdk_draw_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, cx, cy, -1, -1 );
1450         }
1451         else
1452         {
1453             // No scaling and not a memory dc with a mask either
1454 #if wxUSE_NEW_DC
1455             GdkWindow* window = NULL;
1456             wxImplDC *impl = source->GetImpl();
1457             wxGTKWindowImplDC *gtk_impl = wxDynamicCast(impl, wxGTKWindowImplDC);
1458             if (gtk_impl)
1459                 window = gtk_impl->GetGDKWindow();
1460 #else
1461             GdkWindow* window = source->GetGDKWindow();
1462 #endif
1463             if ( !window )
1464                 return false;
1465
1466             // copy including child window contents
1467             gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
1468             gdk_draw_drawable( m_window, m_penGC,
1469                                window,
1470                                xsrc, ysrc, xx, yy,
1471                                width, height );
1472             gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
1473         }
1474     }
1475
1476     SetLogicalFunction( old_logical_func );
1477
1478     return true;
1479 }
1480
1481 void wxGTKWindowImplDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
1482 {
1483     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1484
1485     if (!m_window) return;
1486
1487     if (text.empty()) return;
1488
1489     x = XLOG2DEV(x);
1490     y = YLOG2DEV(y);
1491
1492     wxCHECK_RET( m_context, wxT("no Pango context") );
1493     wxCHECK_RET( m_layout, wxT("no Pango layout") );
1494     wxCHECK_RET( m_fontdesc, wxT("no Pango font description") );
1495
1496     gdk_pango_context_set_colormap( m_context, m_cmap );
1497
1498     bool underlined = m_font.IsOk() && m_font.GetUnderlined();
1499
1500     const wxCharBuffer data = wxGTK_CONV( text );
1501     if ( !data )
1502         return;
1503     size_t datalen = strlen(data);
1504
1505     // in Pango >= 1.16 the "underline of leading/trailing spaces" bug
1506     // has been fixed and thus the hack implemented below should never be used
1507     static bool pangoOk = !wx_pango_version_check(1, 16, 0);
1508
1509     bool needshack = underlined && !pangoOk;
1510     char *hackstring = NULL;
1511
1512     if (needshack)
1513     {
1514         // a PangoLayout which has leading/trailing spaces with underlined font
1515         // is not correctly drawn by this pango version: Pango won't underline the spaces.
1516         // This can be a problem; e.g. wxHTML rendering of underlined text relies on
1517         // this behaviour. To workaround this problem, we use a special hack here
1518         // suggested by pango maintainer Behdad Esfahbod: we prepend and append two
1519         // empty space characters and give them a dummy colour attribute.
1520         // This will force Pango to underline the leading/trailing spaces, too.
1521
1522         // need to realloc the string to prepend & append our special characters
1523         hackstring = (char*)malloc((datalen+7)*sizeof(char));
1524
1525         // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1526         strcpy(hackstring, "\342\200\214");
1527
1528         // copy the user string
1529         memcpy(&hackstring[3], data, datalen);
1530
1531         // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1532         strcpy(&hackstring[datalen+3], "\342\200\214");
1533
1534         // the special characters that we added require 6 additional bytes:
1535         datalen += 6;
1536
1537         pango_layout_set_text(m_layout, hackstring, datalen);
1538     }
1539     else
1540     {
1541         pango_layout_set_text(m_layout, data, datalen);
1542     }
1543
1544     if (underlined)
1545     {
1546         PangoAttrList *attrs = pango_attr_list_new();
1547         PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
1548         a->start_index = 0;
1549         a->end_index = datalen;
1550         pango_attr_list_insert(attrs, a);
1551
1552         if (needshack)
1553         {
1554             // dummy colour for the leading space
1555             a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1556             a->start_index = 0;
1557             a->end_index = 1;
1558             pango_attr_list_insert(attrs, a);
1559
1560             // dummy colour for the trailing space
1561             a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1562             a->start_index = datalen - 1;
1563             a->end_index = datalen;
1564             pango_attr_list_insert(attrs, a);
1565         }
1566
1567         pango_layout_set_attributes(m_layout, attrs);
1568         pango_attr_list_unref(attrs);
1569     }
1570
1571     int w,h;
1572
1573     if (fabs(m_scaleY - 1.0) > 0.00001)
1574     {
1575          // If there is a user or actually any scale applied to
1576          // the device context, scale the font.
1577
1578          // scale font description
1579          gint oldSize = pango_font_description_get_size( m_fontdesc );
1580          double size = oldSize;
1581          size = size * m_scaleY;
1582          pango_font_description_set_size( m_fontdesc, (gint)size );
1583
1584          // actually apply scaled font
1585          pango_layout_set_font_description( m_layout, m_fontdesc );
1586
1587          pango_layout_get_pixel_size( m_layout, &w, &h );
1588          if ( m_backgroundMode == wxSOLID )
1589          {
1590             gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor());
1591             gdk_draw_rectangle(m_window, m_textGC, TRUE, x, y, w, h);
1592             gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
1593          }
1594
1595          // Draw layout.
1596          if (m_owningWindow && m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft)
1597              gdk_draw_layout( m_window, m_textGC, x-w, y, m_layout );
1598          else
1599              gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
1600
1601          // reset unscaled size
1602          pango_font_description_set_size( m_fontdesc, oldSize );
1603
1604          // actually apply unscaled font
1605          pango_layout_set_font_description( m_layout, m_fontdesc );
1606     }
1607     else
1608     {
1609         pango_layout_get_pixel_size( m_layout, &w, &h );
1610         if ( m_backgroundMode == wxSOLID )
1611         {
1612             gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor());
1613             gdk_draw_rectangle(m_window, m_textGC, TRUE, x, y, w, h);
1614             gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
1615         }
1616
1617         // Draw layout.
1618         if (m_owningWindow && m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft)
1619             gdk_draw_layout( m_window, m_textGC, x-w, y, m_layout );
1620         else
1621             gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
1622     }
1623
1624     if (underlined)
1625     {
1626         // undo underline attributes setting:
1627         pango_layout_set_attributes(m_layout, NULL);
1628     }
1629
1630     wxCoord width = w;
1631     wxCoord height = h;
1632
1633     width = wxCoord(width / m_scaleX);
1634     height = wxCoord(height / m_scaleY);
1635     CalcBoundingBox (x + width, y + height);
1636     CalcBoundingBox (x, y);
1637
1638     if (hackstring)
1639         free(hackstring);
1640 }
1641
1642
1643 // TODO: There is an example of rotating text with GTK2 that would probably be
1644 // a better approach here:
1645 //           http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html
1646
1647 void wxGTKWindowImplDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
1648 {
1649 #if wxUSE_IMAGE
1650     if (!m_window || text.empty())
1651         return;
1652
1653     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1654
1655     if ( wxIsNullDouble(angle) )
1656     {
1657         DoDrawText(text, x, y);
1658         return;
1659     }
1660
1661     wxCoord w;
1662     wxCoord h;
1663
1664     // TODO: implement later without GdkFont for GTK 2.0
1665     DoGetTextExtent(text, &w, &h, NULL,NULL, &m_font);
1666
1667     // draw the string normally
1668     wxBitmap src(w, h);
1669     wxMemoryDC dc;
1670     dc.SelectObject(src);
1671     dc.SetFont(GetFont());
1672     dc.SetBackground(*wxBLACK_BRUSH);
1673     dc.SetBrush(*wxBLACK_BRUSH);
1674     dc.Clear();
1675     dc.SetTextForeground( *wxWHITE );
1676     dc.DrawText(text, 0, 0);
1677     dc.SelectObject(wxNullBitmap);
1678
1679     // Calculate the size of the rotated bounding box.
1680     double rad = DegToRad(angle);
1681     double dx = cos(rad),
1682            dy = sin(rad);
1683
1684     // the rectngle vertices are counted clockwise with the first one being at
1685     // (0, 0) (or, rather, at (x, y))
1686     double x2 = w*dx,
1687            y2 = -w*dy;      // y axis points to the bottom, hence minus
1688     double x4 = h*dy,
1689            y4 = h*dx;
1690     double x3 = x4 + x2,
1691            y3 = y4 + y2;
1692
1693     // calc max and min
1694     wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5),
1695             maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5),
1696             minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
1697             minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
1698
1699
1700     wxImage image = src.ConvertToImage();
1701
1702     image.ConvertColourToAlpha( m_textForegroundColour.Red(),
1703                                 m_textForegroundColour.Green(),
1704                                 m_textForegroundColour.Blue() );
1705     image = image.Rotate( rad, wxPoint(0,0) );
1706
1707     int i_angle = (int) angle;
1708     i_angle = i_angle % 360;
1709     if (i_angle < 0)
1710         i_angle += 360;
1711     int xoffset = 0;
1712     if ((i_angle >= 90.0) && (i_angle < 270.0))
1713         xoffset = image.GetWidth();
1714     int yoffset = 0;
1715     if ((i_angle >= 0.0) && (i_angle < 180.0))
1716         yoffset = image.GetHeight();
1717
1718     if ((i_angle >= 0) && (i_angle < 90))
1719         yoffset -= (int)( cos(rad)*h );
1720     if ((i_angle >= 90) && (i_angle < 180))
1721         xoffset -= (int)( sin(rad)*h );
1722     if ((i_angle >= 180) && (i_angle < 270))
1723         yoffset -= (int)( cos(rad)*h );
1724     if ((i_angle >= 270) && (i_angle < 360))
1725         xoffset -= (int)( sin(rad)*h );
1726
1727     int i_x = x - xoffset;
1728     int i_y = y - yoffset;
1729
1730     src = image;
1731     DoDrawBitmap( src, i_x, i_y, true );
1732
1733
1734     // it would be better to draw with non underlined font and draw the line
1735     // manually here (it would be more straight...)
1736 #if 0
1737     if ( m_font.GetUnderlined() )
1738     {
1739         gdk_draw_line( m_window, m_textGC,
1740                        XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent),
1741                        XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent));
1742     }
1743 #endif // 0
1744
1745     // update the bounding box
1746     CalcBoundingBox(x + minX, y + minY);
1747     CalcBoundingBox(x + maxX, y + maxY);
1748 #else // !wxUSE_IMAGE
1749     wxUnusedVar(text);
1750     wxUnusedVar(x);
1751     wxUnusedVar(y);
1752     wxUnusedVar(angle);
1753 #endif // wxUSE_IMAGE/!wxUSE_IMAGE
1754 }
1755
1756 void wxGTKWindowImplDC::DoGetTextExtent(const wxString &string,
1757                                  wxCoord *width, wxCoord *height,
1758                                  wxCoord *descent, wxCoord *externalLeading,
1759                                  const wxFont *theFont) const
1760 {
1761     if ( width )
1762         *width = 0;
1763     if ( height )
1764         *height = 0;
1765     if ( descent )
1766         *descent = 0;
1767     if ( externalLeading )
1768         *externalLeading = 0;
1769
1770     if (string.empty())
1771         return;
1772
1773     // ensure that theFont is always non-NULL
1774     if ( !theFont || !theFont->IsOk() )
1775         theFont = wx_const_cast(wxFont *, &m_font);
1776
1777     // and use it if it's valid
1778     if ( theFont->IsOk() )
1779     {
1780         pango_layout_set_font_description
1781         (
1782             m_layout,
1783             theFont->GetNativeFontInfo()->description
1784         );
1785     }
1786
1787     // Set layout's text
1788     const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(string, *theFont);
1789     if ( !dataUTF8 )
1790     {
1791         // hardly ideal, but what else can we do if conversion failed?
1792         return;
1793     }
1794
1795     pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) );
1796
1797     if (descent)
1798     {
1799         int h;
1800         pango_layout_get_pixel_size( m_layout, width, &h );
1801         PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
1802         int baseline = pango_layout_iter_get_baseline(iter);
1803         pango_layout_iter_free(iter);
1804         *descent = h - PANGO_PIXELS(baseline);
1805
1806         if (height)
1807             *height = (wxCoord) h;
1808     }
1809     else
1810     {
1811         pango_layout_get_pixel_size( m_layout, width, height );
1812     }
1813
1814     // Reset old font description
1815     if (theFont->IsOk())
1816         pango_layout_set_font_description( m_layout, m_fontdesc );
1817 }
1818
1819
1820 bool wxGTKWindowImplDC::DoGetPartialTextExtents(const wxString& text,
1821                                          wxArrayInt& widths) const
1822 {
1823     const size_t len = text.length();
1824     widths.Empty();
1825     widths.Add(0, len);
1826
1827     if (text.empty())
1828         return true;
1829
1830     // Set layout's text
1831     const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(text, m_font);
1832     if ( !dataUTF8 )
1833     {
1834         // hardly ideal, but what else can we do if conversion failed?
1835         wxLogLastError(wxT("DoGetPartialTextExtents"));
1836         return false;
1837     }
1838
1839     pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) );
1840
1841     // Calculate the position of each character based on the widths of
1842     // the previous characters
1843
1844     // Code borrowed from Scintilla's PlatGTK
1845     PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
1846     PangoRectangle pos;
1847     pango_layout_iter_get_cluster_extents(iter, NULL, &pos);
1848     size_t i = 0;
1849     while (pango_layout_iter_next_cluster(iter))
1850     {
1851         pango_layout_iter_get_cluster_extents(iter, NULL, &pos);
1852         int position = PANGO_PIXELS(pos.x);
1853         widths[i++] = position;
1854     }
1855     while (i < len)
1856         widths[i++] = PANGO_PIXELS(pos.x + pos.width);
1857     pango_layout_iter_free(iter);
1858
1859     return true;
1860 }
1861
1862
1863 wxCoord wxGTKWindowImplDC::GetCharWidth() const
1864 {
1865     pango_layout_set_text( m_layout, "H", 1 );
1866     int w;
1867     pango_layout_get_pixel_size( m_layout, &w, NULL );
1868     return w;
1869 }
1870
1871 wxCoord wxGTKWindowImplDC::GetCharHeight() const
1872 {
1873     PangoFontMetrics *metrics = pango_context_get_metrics (m_context, m_fontdesc, pango_context_get_language(m_context));
1874     wxCHECK_MSG( metrics, -1, _T("failed to get pango font metrics") );
1875
1876     wxCoord h = PANGO_PIXELS (pango_font_metrics_get_descent (metrics) +
1877                 pango_font_metrics_get_ascent (metrics));
1878     pango_font_metrics_unref (metrics);
1879     return h;
1880 }
1881
1882 void wxGTKWindowImplDC::Clear()
1883 {
1884     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1885
1886     if (!m_window) return;
1887
1888     int width,height;
1889     DoGetSize( &width, &height );
1890     gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
1891 }
1892
1893 void wxGTKWindowImplDC::SetFont( const wxFont &font )
1894 {
1895     m_font = font;
1896
1897     if (m_font.IsOk())
1898     {
1899         if (m_fontdesc)
1900             pango_font_description_free( m_fontdesc );
1901
1902         m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description );
1903
1904
1905         if (m_owningWindow)
1906         {
1907             PangoContext *oldContext = m_context;
1908
1909             m_context = m_owningWindow->GtkGetPangoDefaultContext();
1910
1911             // If we switch back/forth between different contexts
1912             // we also have to create a new layout. I think so,
1913             // at least, and it doesn't hurt to do it.
1914             if (oldContext != m_context)
1915             {
1916                 if (m_layout)
1917                     g_object_unref (m_layout);
1918
1919                 m_layout = pango_layout_new( m_context );
1920             }
1921         }
1922
1923         pango_layout_set_font_description( m_layout, m_fontdesc );
1924     }
1925 }
1926
1927 void wxGTKWindowImplDC::SetPen( const wxPen &pen )
1928 {
1929     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1930
1931     if (m_pen == pen) return;
1932
1933     m_pen = pen;
1934
1935     if (!m_pen.IsOk()) return;
1936
1937     if (!m_window) return;
1938
1939     gint width = m_pen.GetWidth();
1940     if (width <= 0)
1941     {
1942         // CMB: if width is non-zero scale it with the dc
1943         width = 1;
1944     }
1945     else
1946     {
1947         // X doesn't allow different width in x and y and so we take
1948         // the average
1949         double w = 0.5 +
1950                    ( fabs((double) XLOG2DEVREL(width)) +
1951                      fabs((double) YLOG2DEVREL(width)) ) / 2.0;
1952         width = (int)w;
1953         if ( !width )
1954         {
1955             // width can't be 0 or an internal GTK error occurs inside
1956             // gdk_gc_set_dashes() below
1957             width = 1;
1958         }
1959     }
1960
1961     static const wxGTKDash dotted[] = {1, 1};
1962     static const wxGTKDash short_dashed[] = {2, 2};
1963     static const wxGTKDash wxCoord_dashed[] = {2, 4};
1964     static const wxGTKDash dotted_dashed[] = {3, 3, 1, 3};
1965
1966     // We express dash pattern in pen width unit, so we are
1967     // independent of zoom factor and so on...
1968     int req_nb_dash;
1969     const wxGTKDash *req_dash;
1970
1971     GdkLineStyle lineStyle = GDK_LINE_SOLID;
1972     switch (m_pen.GetStyle())
1973     {
1974         case wxUSER_DASH:
1975         {
1976             lineStyle = GDK_LINE_ON_OFF_DASH;
1977             req_nb_dash = m_pen.GetDashCount();
1978             req_dash = (wxGTKDash*)m_pen.GetDash();
1979             break;
1980         }
1981         case wxDOT:
1982         {
1983             lineStyle = GDK_LINE_ON_OFF_DASH;
1984             req_nb_dash = 2;
1985             req_dash = dotted;
1986             break;
1987         }
1988         case wxLONG_DASH:
1989         {
1990             lineStyle = GDK_LINE_ON_OFF_DASH;
1991             req_nb_dash = 2;
1992             req_dash = wxCoord_dashed;
1993             break;
1994         }
1995         case wxSHORT_DASH:
1996         {
1997             lineStyle = GDK_LINE_ON_OFF_DASH;
1998             req_nb_dash = 2;
1999             req_dash = short_dashed;
2000             break;
2001         }
2002         case wxDOT_DASH:
2003         {
2004 //            lineStyle = GDK_LINE_DOUBLE_DASH;
2005             lineStyle = GDK_LINE_ON_OFF_DASH;
2006             req_nb_dash = 4;
2007             req_dash = dotted_dashed;
2008             break;
2009         }
2010
2011         case wxTRANSPARENT:
2012         case wxSTIPPLE_MASK_OPAQUE:
2013         case wxSTIPPLE:
2014         case wxSOLID:
2015         default:
2016         {
2017             lineStyle = GDK_LINE_SOLID;
2018             req_dash = (wxGTKDash*)NULL;
2019             req_nb_dash = 0;
2020             break;
2021         }
2022     }
2023
2024     if (req_dash && req_nb_dash)
2025     {
2026         wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];
2027         if (real_req_dash)
2028         {
2029             for (int i = 0; i < req_nb_dash; i++)
2030                 real_req_dash[i] = req_dash[i] * width;
2031             gdk_gc_set_dashes( m_penGC, 0, real_req_dash, req_nb_dash );
2032             delete[] real_req_dash;
2033         }
2034         else
2035         {
2036             // No Memory. We use non-scaled dash pattern...
2037             gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
2038         }
2039     }
2040
2041     GdkCapStyle capStyle = GDK_CAP_ROUND;
2042     switch (m_pen.GetCap())
2043     {
2044         case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; }
2045         case wxCAP_BUTT:       { capStyle = GDK_CAP_BUTT;       break; }
2046         case wxCAP_ROUND:
2047         default:
2048         {
2049             if (width <= 1)
2050             {
2051                 width = 0;
2052                 capStyle = GDK_CAP_NOT_LAST;
2053             }
2054             else
2055             {
2056                 capStyle = GDK_CAP_ROUND;
2057             }
2058             break;
2059         }
2060     }
2061
2062     GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
2063     switch (m_pen.GetJoin())
2064     {
2065         case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; }
2066         case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; }
2067         case wxJOIN_ROUND:
2068         default:           { joinStyle = GDK_JOIN_ROUND; break; }
2069     }
2070
2071     gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
2072
2073     m_pen.GetColour().CalcPixel( m_cmap );
2074     gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
2075 }
2076
2077 void wxGTKWindowImplDC::SetBrush( const wxBrush &brush )
2078 {
2079     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2080
2081     if (m_brush == brush) return;
2082
2083     m_brush = brush;
2084
2085     if (!m_brush.IsOk()) return;
2086
2087     if (!m_window) return;
2088
2089     m_brush.GetColour().CalcPixel( m_cmap );
2090     gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
2091
2092     gdk_gc_set_fill( m_brushGC, GDK_SOLID );
2093
2094     if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->IsOk()))
2095     {
2096         if (m_brush.GetStipple()->GetDepth() != 1)
2097         {
2098             gdk_gc_set_fill( m_brushGC, GDK_TILED );
2099             gdk_gc_set_tile( m_brushGC, m_brush.GetStipple()->GetPixmap() );
2100         }
2101         else
2102         {
2103             gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
2104             gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
2105         }
2106     }
2107
2108     if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
2109     {
2110         gdk_gc_set_fill( m_textGC, GDK_OPAQUE_STIPPLED);
2111         gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
2112     }
2113
2114     if (m_brush.IsHatch())
2115     {
2116         gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
2117         int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
2118         gdk_gc_set_stipple( m_brushGC, hatches[num] );
2119     }
2120 }
2121
2122 void wxGTKWindowImplDC::SetBackground( const wxBrush &brush )
2123 {
2124    /* CMB 21/7/98: Added SetBackground. Sets background brush
2125     * for Clear() and bg colour for shapes filled with cross-hatch brush */
2126
2127     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2128
2129     if (m_backgroundBrush == brush) return;
2130
2131     m_backgroundBrush = brush;
2132
2133     if (!m_backgroundBrush.IsOk()) return;
2134
2135     if (!m_window) return;
2136
2137     m_backgroundBrush.GetColour().CalcPixel( m_cmap );
2138     gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() );
2139     gdk_gc_set_background( m_penGC, m_backgroundBrush.GetColour().GetColor() );
2140     gdk_gc_set_background( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
2141     gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
2142
2143     gdk_gc_set_fill( m_bgGC, GDK_SOLID );
2144
2145     if ((m_backgroundBrush.GetStyle() == wxSTIPPLE) && (m_backgroundBrush.GetStipple()->IsOk()))
2146     {
2147         if (m_backgroundBrush.GetStipple()->GetDepth() != 1)
2148         {
2149             gdk_gc_set_fill( m_bgGC, GDK_TILED );
2150             gdk_gc_set_tile( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
2151         }
2152         else
2153         {
2154             gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
2155             gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
2156         }
2157     }
2158
2159     if (m_backgroundBrush.IsHatch())
2160     {
2161         gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
2162         int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
2163         gdk_gc_set_stipple( m_bgGC, hatches[num] );
2164     }
2165 }
2166
2167 void wxGTKWindowImplDC::SetLogicalFunction( int function )
2168 {
2169     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2170
2171     if (m_logicalFunction == function)
2172         return;
2173
2174     // VZ: shouldn't this be a CHECK?
2175     if (!m_window)
2176         return;
2177
2178     GdkFunction mode;
2179     switch (function)
2180     {
2181         case wxXOR:          mode = GDK_XOR;           break;
2182         case wxINVERT:       mode = GDK_INVERT;        break;
2183         case wxOR_REVERSE:   mode = GDK_OR_REVERSE;    break;
2184         case wxAND_REVERSE:  mode = GDK_AND_REVERSE;   break;
2185         case wxCLEAR:        mode = GDK_CLEAR;         break;
2186         case wxSET:          mode = GDK_SET;           break;
2187         case wxOR_INVERT:    mode = GDK_OR_INVERT;     break;
2188         case wxAND:          mode = GDK_AND;           break;
2189         case wxOR:           mode = GDK_OR;            break;
2190         case wxEQUIV:        mode = GDK_EQUIV;         break;
2191         case wxNAND:         mode = GDK_NAND;          break;
2192         case wxAND_INVERT:   mode = GDK_AND_INVERT;    break;
2193         case wxCOPY:         mode = GDK_COPY;          break;
2194         case wxNO_OP:        mode = GDK_NOOP;          break;
2195         case wxSRC_INVERT:   mode = GDK_COPY_INVERT;   break;
2196
2197         // unsupported by GTK
2198         case wxNOR:          mode = GDK_COPY;          break;
2199         default:
2200            wxFAIL_MSG( wxT("unsupported logical function") );
2201            mode = GDK_COPY;
2202     }
2203
2204     m_logicalFunction = function;
2205
2206     gdk_gc_set_function( m_penGC, mode );
2207     gdk_gc_set_function( m_brushGC, mode );
2208
2209     // to stay compatible with wxMSW, we don't apply ROPs to the text
2210     // operations (i.e. DrawText/DrawRotatedText).
2211     // True, but mono-bitmaps use the m_textGC and they use ROPs as well.
2212     gdk_gc_set_function( m_textGC, mode );
2213 }
2214
2215 void wxGTKWindowImplDC::SetTextForeground( const wxColour &col )
2216 {
2217     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2218
2219     // don't set m_textForegroundColour to an invalid colour as we'd crash
2220     // later then (we use m_textForegroundColour.GetColor() without checking
2221     // in a few places)
2222     if ( !col.IsOk() || (m_textForegroundColour == col) )
2223         return;
2224
2225     m_textForegroundColour = col;
2226
2227     if ( m_window )
2228     {
2229         m_textForegroundColour.CalcPixel( m_cmap );
2230         gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
2231     }
2232 }
2233
2234 void wxGTKWindowImplDC::SetTextBackground( const wxColour &col )
2235 {
2236     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2237
2238     // same as above
2239     if ( !col.IsOk() || (m_textBackgroundColour == col) )
2240         return;
2241
2242     m_textBackgroundColour = col;
2243
2244     if ( m_window )
2245     {
2246         m_textBackgroundColour.CalcPixel( m_cmap );
2247         gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
2248     }
2249 }
2250
2251 void wxGTKWindowImplDC::SetBackgroundMode( int mode )
2252 {
2253     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2254
2255     m_backgroundMode = mode;
2256
2257     if (!m_window) return;
2258
2259     // CMB 21/7/98: fill style of cross-hatch brushes is affected by
2260     // transparent/solid background mode
2261
2262     if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT)
2263     {
2264         gdk_gc_set_fill( m_brushGC,
2265           (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED);
2266     }
2267 }
2268
2269 void wxGTKWindowImplDC::SetPalette( const wxPalette& WXUNUSED(palette) )
2270 {
2271     wxFAIL_MSG( wxT("wxGTKWindowImplDC::SetPalette not implemented") );
2272 }
2273
2274 void wxGTKWindowImplDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
2275 {
2276     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2277
2278     if (!m_window) return;
2279
2280     wxRect rect;
2281     rect.x = XLOG2DEV(x);
2282     rect.y = YLOG2DEV(y);
2283     rect.width = XLOG2DEVREL(width);
2284     rect.height = YLOG2DEVREL(height);
2285
2286     if (m_owningWindow && m_owningWindow->m_wxwindow &&
2287         (m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft))
2288     {
2289         rect.x -= rect.width;
2290     }
2291
2292     if (!m_currentClippingRegion.IsNull())
2293         m_currentClippingRegion.Intersect( rect );
2294     else
2295         m_currentClippingRegion.Union( rect );
2296
2297 #if USE_PAINT_REGION
2298     if (!m_paintClippingRegion.IsNull())
2299         m_currentClippingRegion.Intersect( m_paintClippingRegion );
2300 #endif
2301
2302     wxCoord xx, yy, ww, hh;
2303     m_currentClippingRegion.GetBox( xx, yy, ww, hh );
2304 #if wxUSE_NEW_DC
2305     wxImplDC::DoSetClippingRegion( xx, yy, ww, hh );
2306 #else
2307     wxDC::DoSetClippingRegion( xx, yy, ww, hh );
2308 #endif
2309
2310     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
2311     gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
2312     gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
2313     gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
2314 }
2315
2316 void wxGTKWindowImplDC::DoSetClippingRegionAsRegion( const wxRegion &region  )
2317 {
2318     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2319
2320     if (region.Empty())
2321     {
2322         DestroyClippingRegion();
2323         return;
2324     }
2325
2326     if (!m_window) return;
2327
2328     if (!m_currentClippingRegion.IsNull())
2329         m_currentClippingRegion.Intersect( region );
2330     else
2331         m_currentClippingRegion.Union( region );
2332
2333 #if USE_PAINT_REGION
2334     if (!m_paintClippingRegion.IsNull())
2335         m_currentClippingRegion.Intersect( m_paintClippingRegion );
2336 #endif
2337
2338     wxCoord xx, yy, ww, hh;
2339     m_currentClippingRegion.GetBox( xx, yy, ww, hh );
2340 #if wxUSE_NEW_DC
2341     wxImplDC::DoSetClippingRegion( xx, yy, ww, hh );
2342 #else
2343     wxDC::DoSetClippingRegion( xx, yy, ww, hh );
2344 #endif
2345
2346     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
2347     gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
2348     gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
2349     gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
2350 }
2351
2352 void wxGTKWindowImplDC::DestroyClippingRegion()
2353 {
2354     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2355
2356 #if wxUSE_NEW_DC
2357     wxImplDC::DestroyClippingRegion();
2358 #else
2359     wxDC::DestroyClippingRegion();
2360 #endif
2361
2362     m_currentClippingRegion.Clear();
2363
2364 #if USE_PAINT_REGION
2365     if (!m_paintClippingRegion.IsEmpty())
2366         m_currentClippingRegion.Union( m_paintClippingRegion );
2367 #endif
2368
2369     if (!m_window) return;
2370
2371     if (m_currentClippingRegion.IsEmpty())
2372     {
2373         gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
2374         gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
2375         gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
2376         gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
2377     }
2378     else
2379     {
2380         gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
2381         gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
2382         gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
2383         gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
2384     }
2385 }
2386
2387 void wxGTKWindowImplDC::Destroy()
2388 {
2389     if (m_penGC) wxFreePoolGC( m_penGC );
2390     m_penGC = (GdkGC*) NULL;
2391     if (m_brushGC) wxFreePoolGC( m_brushGC );
2392     m_brushGC = (GdkGC*) NULL;
2393     if (m_textGC) wxFreePoolGC( m_textGC );
2394     m_textGC = (GdkGC*) NULL;
2395     if (m_bgGC) wxFreePoolGC( m_bgGC );
2396     m_bgGC = (GdkGC*) NULL;
2397 }
2398
2399 void wxGTKWindowImplDC::SetDeviceOrigin( wxCoord x, wxCoord y )
2400 {
2401     m_deviceOriginX = x;
2402     m_deviceOriginY = y;
2403
2404     ComputeScaleAndOrigin();
2405 }
2406
2407 void wxGTKWindowImplDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
2408 {
2409     m_signX = (xLeftRight ?  1 : -1);
2410     m_signY = (yBottomUp  ? -1 :  1);
2411
2412     if (m_owningWindow && m_owningWindow->m_wxwindow &&
2413         (m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft))
2414         m_signX = -m_signX;
2415
2416     ComputeScaleAndOrigin();
2417 }
2418
2419 void wxGTKWindowImplDC::ComputeScaleAndOrigin()
2420 {
2421     const wxRealPoint origScale(m_scaleX, m_scaleY);
2422
2423 #if wxUSE_NEW_DC
2424     wxImplDC::ComputeScaleAndOrigin();
2425 #else
2426     wxDC::ComputeScaleAndOrigin();
2427 #endif
2428
2429     // if scale has changed call SetPen to recalulate the line width
2430     if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.IsOk() )
2431     {
2432         // this is a bit artificial, but we need to force wxDC to think the pen
2433         // has changed
2434         wxPen pen = m_pen;
2435         m_pen = wxNullPen;
2436         SetPen( pen );
2437     }
2438 }
2439
2440 // Resolution in pixels per logical inch
2441 wxSize wxGTKWindowImplDC::GetPPI() const
2442 {
2443     return wxSize( (int) (m_mm_to_pix_x * 25.4 + 0.5), (int) (m_mm_to_pix_y * 25.4 + 0.5));
2444 }
2445
2446 int wxGTKWindowImplDC::GetDepth() const
2447 {
2448     return gdk_drawable_get_depth(m_window);
2449 }
2450
2451
2452 //-----------------------------------------------------------------------------
2453 // wxClientDC
2454 //-----------------------------------------------------------------------------
2455
2456 #if wxUSE_NEW_DC
2457 IMPLEMENT_ABSTRACT_CLASS(wxGTKClientImplDC, wxGTKWindowImplDC)
2458 #else
2459 IMPLEMENT_ABSTRACT_CLASS(wxClientDC, wxWindowDC)
2460 #endif
2461
2462 #if wxUSE_NEW_DC
2463 wxGTKClientImplDC::wxGTKClientImplDC( wxDC *owner )
2464           : wxGTKWindowImplDC( owner )
2465 {
2466 }
2467
2468 wxGTKClientImplDC::wxGTKClientImplDC( wxDC *owner, wxWindow *win )
2469           : wxGTKWindowImplDC( owner, win )
2470 #else
2471 wxClientDC::wxClientDC()
2472 {
2473 }
2474
2475 wxClientDC::wxClientDC( wxWindow *win )
2476           : wxWindowDC( win )
2477 #endif
2478
2479 {
2480     wxCHECK_RET( win, _T("NULL window in wxGTKClientImplDC::wxClientDC") );
2481
2482 #ifdef __WXUNIVERSAL__
2483     wxPoint ptOrigin = win->GetClientAreaOrigin();
2484     SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
2485     wxSize size = win->GetClientSize();
2486     SetClippingRegion(wxPoint(0, 0), size);
2487 #endif // __WXUNIVERSAL__
2488 }
2489
2490 void wxGTKClientImplDC::DoGetSize(int *width, int *height) const
2491 {
2492     wxCHECK_RET( m_owningWindow, _T("GetSize() doesn't work without window") );
2493
2494     m_owningWindow->GetClientSize( width, height );
2495 }
2496
2497 //-----------------------------------------------------------------------------
2498 // wxPaintDC
2499 //-----------------------------------------------------------------------------
2500
2501 #if wxUSE_NEW_DC
2502 IMPLEMENT_ABSTRACT_CLASS(wxGTKPaintImplDC, wxGTKClientImplDC)
2503 #else
2504 IMPLEMENT_ABSTRACT_CLASS(wxPaintDC, wxClientDC)
2505 #endif
2506
2507 // Limit the paint region to the window size. Sometimes
2508 // the paint region is too big, and this risks X11 errors
2509 static void wxLimitRegionToSize(wxRegion& region, const wxSize& sz)
2510 {
2511     wxRect originalRect = region.GetBox();
2512     wxRect rect(originalRect);
2513     if (rect.width + rect.x > sz.x)
2514         rect.width = sz.x - rect.x;
2515     if (rect.height + rect.y > sz.y)
2516         rect.height = sz.y - rect.y;
2517     if (rect != originalRect)
2518     {
2519         region = wxRegion(rect);
2520         wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"),
2521                    originalRect.x, originalRect.y, originalRect.width, originalRect.height,
2522                    rect.x, rect.y, rect.width, rect.height);
2523     }
2524 }
2525
2526 #if wxUSE_NEW_DC
2527 wxGTKPaintImplDC::wxGTKPaintImplDC( wxDC *owner )
2528          : wxGTKClientImplDC( owner )
2529 {
2530 }
2531
2532 wxGTKPaintImplDC::wxGTKPaintImplDC( wxDC *owner, wxWindow *win )
2533          : wxGTKClientImplDC( owner, win )
2534 #else
2535 wxPaintDC::wxPaintDC()
2536          : wxClientDC()
2537 {
2538 }
2539
2540 wxPaintDC::wxPaintDC( wxWindow *win )
2541          : wxClientDC( win )
2542 #endif
2543 {
2544 #if USE_PAINT_REGION
2545     if (!win->m_clipPaintRegion)
2546         return;
2547
2548     wxSize sz = win->GetSize();
2549     m_paintClippingRegion = win->m_nativeUpdateRegion;
2550     wxLimitRegionToSize(m_paintClippingRegion, sz);
2551
2552     GdkRegion *region = m_paintClippingRegion.GetRegion();
2553     if ( region )
2554     {
2555         m_currentClippingRegion.Union( m_paintClippingRegion );
2556         wxLimitRegionToSize(m_currentClippingRegion, sz);
2557
2558         if (sz.x <= 0 || sz.y <= 0)
2559             return ;
2560
2561         gdk_gc_set_clip_region( m_penGC, region );
2562         gdk_gc_set_clip_region( m_brushGC, region );
2563         gdk_gc_set_clip_region( m_textGC, region );
2564         gdk_gc_set_clip_region( m_bgGC, region );
2565     }
2566 #endif // USE_PAINT_REGION
2567 }
2568
2569 // ----------------------------------------------------------------------------
2570 // wxDCModule
2571 // ----------------------------------------------------------------------------
2572
2573 class wxDCModule : public wxModule
2574 {
2575 public:
2576     bool OnInit();
2577     void OnExit();
2578
2579 private:
2580     DECLARE_DYNAMIC_CLASS(wxDCModule)
2581 };
2582
2583 IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
2584
2585 bool wxDCModule::OnInit()
2586 {
2587     wxInitGCPool();
2588     return true;
2589 }
2590
2591 void wxDCModule::OnExit()
2592 {
2593     wxCleanUpGCPool();
2594 }