text: #include "cairo_container.h"
  #define _USE_MATH_DEFINES
  #include <math.h>
  #include "cairo_font.h"
  #include <strsafe.h>
  
  cairo_container::cairo_container(void)
  {
  	m_temp_surface	= cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 2, 2);
  	m_temp_cr		= cairo_create(m_temp_surface);
  	m_font_link		= NULL;
  	CoCreateInstance(CLSID_CMultiLanguage, NULL, CLSCTX_ALL, IID_IMLangFontLink2, (void**) &m_font_link);
  	InitializeCriticalSection(&m_img_sync);
  }
  
  cairo_container::~cairo_container(void)
  {
  	clear_images();
  	if(m_font_link)
  	{
  		m_font_link->Release();
  	}
  	cairo_surface_destroy(m_temp_surface);
  	cairo_destroy(m_temp_cr);
  	DeleteCriticalSection(&m_img_sync);
  }
  
  litehtml::uint_ptr cairo_container::create_font( const litehtml::tchar_t* faceName, int size, int weight, litehtml::font_style italic, unsigned int decoration, litehtml::font_metrics* fm )
  {
  	std::wstring fnt_name = L"sans-serif";
  
  	litehtml::string_vector fonts;
  	litehtml::split_string(faceName, fonts, _t(","));
  	if(!fonts.empty())
  	{
  		litehtml::trim(fonts[0]);
  #ifdef LITEHTML_UTF8
  		wchar_t* f = cairo_font::utf8_to_wchar(fonts[0].c_str());
  		fnt_name = f;
  		delete f;
  #else
  		fnt_name = fonts[0];
  		if (fnt_name.front() == L'"' || fnt_name.front() == L'\'')
  		{
  			fnt_name.erase(0, 1);
  		}
  		if (fnt_name.back() == L'"' || fnt_name.back() == L'\'')
  		{
  			fnt_name.erase(fnt_name.length() - 1, 1);
  		}
  #endif
  	}
  
  	cairo_font* fnt = new cairo_font(	m_font_link,
  										fnt_name.c_str(), 
  										size, 
  										weight, 
  										(italic == litehtml::fontStyleItalic) ? TRUE : FALSE,
  										(decoration & litehtml::font_decoration_linethrough) ? TRUE : FALSE,
  										(decoration & litehtml::font_decoration_underline) ? TRUE : FALSE);
  
  	cairo_save(m_temp_cr);
  	fnt->load_metrics(m_temp_cr);
  
  	if(fm)
  	{
  		fm->ascent		= fnt->metrics().ascent;
  		fm->descent		= fnt->metrics().descent;
  		fm->height		= fnt->metrics().height;
  		fm->x_height	= fnt->metrics().x_height;
  		if(italic == litehtml::fontStyleItalic || decoration)
  		{
  			fm->draw_spaces = true;
  		} else
  		{
  			fm->draw_spaces = false;
  		}
  	}
  
  	cairo_restore(m_temp_cr);
  
  	return (litehtml::uint_ptr) fnt;
  }
  
  void cairo_container::delete_font( litehtml::uint_ptr hFont )
  {
  	cairo_font* fnt = (cairo_font*) hFont;
  	if(fnt)
  	{
  		delete fnt;
  	}
  }
  
  int cairo_container::text_width( const litehtml::tchar_t* text, litehtml::uint_ptr hFont )
  {
  	cairo_font* fnt = (cairo_font*) hFont;
  	
  	cairo_save(m_temp_cr);
  	int ret = fnt->text_width(m_temp_cr, text);
  	cairo_restore(m_temp_cr);
  	return ret;
  }
  
  void cairo_container::draw_text( litehtml::uint_ptr hdc, const litehtml::tchar_t* text, litehtml::uint_ptr hFont, litehtml::web_color color, const litehtml::position& pos )
  {
  	if(hFont)
  	{
  		cairo_font* fnt = (cairo_font*) hFont;
  		cairo_t* cr		= (cairo_t*) hdc;
  		cairo_save(cr);
  
  		apply_clip(cr);
  
  		int x = pos.left();
  		int y = pos.bottom() - fnt->metrics().descent;
  
  		set_color(cr, color);
  		fnt->show_text(cr, x, y, text);
  
  		cairo_restore(cr);
  	}
  }
  
  int cairo_container::pt_to_px( int pt ) const
  {
  	HDC dc = GetDC(NULL);
  	int ret = MulDiv(pt, GetDeviceCaps(dc, LOGPIXELSY), 72);
  	ReleaseDC(NULL, dc);
  	return ret;
  }
  
  int cairo_container::get_default_font_size() const
  {
  	return 16;
  }
  
  void cairo_container::draw_list_marker( litehtml::uint_ptr hdc, const litehtml::list_marker& marker )
  {
  	if(!marker.image.empty())
  	{
  		std::wstring url;
  		t_make_url(marker.image.c_str(), marker.baseurl, url);
  
  		lock_images_cache();
  		images_map::iterator img_i = m_images.find(url.c_str());
  		if(img_i != m_images.end())
  		{
  			if(img_i->second)
  			{
  				draw_txdib((cairo_t*)hdc, img_i->second.get(), marker.pos.x, marker.pos.y, marker.pos.width, marker.pos.height);
  				unlock_images_cache();
  				return;
  			}
  		}
  		unlock_images_cache();
  	}
  
  	switch(marker.marker_type)
  	{
  	case litehtml::list_style_type_circle:
  		{
  			draw_ellipse((cairo_t*) hdc, marker.pos.x, marker.pos.y, marker.pos.width, marker.pos.height, marker.color, 0.5);
  		}
  		break;
  	case litehtml::list_style_type_disc:
  		{
  			fill_ellipse((cairo_t*) hdc, marker.pos.x, marker.pos.y, marker.pos.width, marker.pos.height, marker.color);
  		}
  		break;
  	case litehtml::list_style_type_square:
  		if(hdc)
  		{
  			cairo_t* cr = (cairo_t*) hdc;
  			cairo_save(cr);
  
  			cairo_new_path(cr);
  			cairo_rectangle(cr, marker.pos.x, marker.pos.y, marker.pos.width, marker.pos.height);
  
  			set_color(cr, marker.color);
  			cairo_fill(cr);
  			cairo_restore(cr);
  		}
  		break;
  	}
  }
  
  void cairo_container::load_image( const litehtml::tchar_t* src, const litehtml::tchar_t* baseurl, bool redraw_on_ready )
  {
  	std::wstring url;
  	t_make_url(src, baseurl, url);
  	lock_images_cache();
  	if(m_images.find(url.c_str()) == m_images.end())
  	{
  		unlock_images_cache();
  		image_ptr img = get_image(url.c_str(), redraw_on_ready);
  		lock_images_cache();
  		m_images[url] = img;
  		unlock_images_cache();
  	} else
  	{
  		unlock_images_cache();
  	}
  
  }
  
  void cairo_container::get_image_size( const litehtml::tchar_t* src, const litehtml::tchar_t* baseurl, litehtml::size& sz )
  {
  	std::wstring url;
  	t_make_url(src, baseurl, url);
  
  	sz.width	= 0;
  	sz.height	= 0;
  
  	lock_images_cache();
  	images_map::iterator img = m_images.find(url.c_str());
  	if(img != m_images.end())
  	{
  		if(img->second)
  		{
  			sz.width	= img->second->getWidth();
  			sz.height	= img->second->getHeight();
  		}
  	}
  	unlock_images_cache();
  }
  
  void cairo_container::draw_image( litehtml::uint_ptr hdc, const litehtml::tchar_t* src, const litehtml::tchar_t* baseurl, const litehtml::position& pos )
  {
  	cairo_t* cr = (cairo_t*) hdc;
  	cairo_save(cr);
  	apply_clip(cr);
  
  	std::wstring url;
  	t_make_url(src, baseurl, url);
  	lock_images_cache();
  	images_map::iterator img = m_images.find(url.c_str());
  	if(img != m_images.end())
  	{
  		if(img->second)
  		{
  			draw_txdib(cr, img->second.get(), pos.x, pos.y, pos.width, pos.height);
  		}
  	}
  	unlock_images_cache();
  	cairo_restore(cr);
  }
  
  void cairo_container::draw_background( litehtml::uint_ptr hdc, const litehtml::background_paint& bg )
  {
  	cairo_t* cr = (cairo_t*) hdc;
  	cairo_save(cr);
  	apply_clip(cr);
  
  	rounded_rectangle(cr, bg.border_box, bg.border_radius);
  	cairo_clip(cr);
  
  	cairo_rectangle(cr, bg.clip_box.x, bg.clip_box.y, bg.clip_box.width, bg.clip_box.height);
  	cairo_clip(cr);
  
  	if(bg.color.alpha)
  	{
  		set_color(cr, bg.color);
  		cairo_paint(cr);
  	}
  
  	std::wstring url;
  	t_make_url(bg.image.c_str(), bg.baseurl.c_str(), url);
  
  	lock_images_cache();
  	images_map::iterator img_i = m_images.find(url.c_str());
  	if(img_i != m_images.end() && img_i->second)
  	{
  		image_ptr bgbmp = img_i->second;
  		
  		image_ptr new_img;
  		if(bg.image_size.width != bgbmp->getWidth() || bg.image_size.height != bgbmp->getHeight())
  		{
  			new_img = image_ptr(new CTxDIB);
  			bgbmp->resample(bg.image_size.width, bg.image_size.height, new_img.get());
  			bgbmp = new_img;
  		}
  
  
  		cairo_surface_t* img = cairo_image_surface_create_for_data((unsigned char*) bgbmp->getBits(), CAIRO_FORMAT_ARGB32, bgbmp->getWidth(), bgbmp->getHeight(), bgbmp->getWidth() * 4);
  		cairo_pattern_t *pattern = cairo_pattern_create_for_surface(img);
  		cairo_matrix_t flib_m;
  		cairo_matrix_init(&flib_m, 1, 0, 0, -1, 0, 0);
  		cairo_matrix_translate(&flib_m, -bg.position_x, -bg.position_y);
  		cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
  		cairo_pattern_set_matrix (pattern, &flib_m);
  
  		switch(bg.repeat)
  		{
  		case litehtml::background_repeat_no_repeat:
  			draw_txdib(cr, bgbmp.get(), bg.position_x, bg.position_y, bgbmp->getWidth(), bgbmp->getHeight());
  			break;
  
  		case litehtml::background_repeat_repeat_x:
  			cairo_set_source(cr, pattern);
  			cairo_rectangle(cr, bg.clip_box.left(), bg.position_y, bg.clip_box.width, bgbmp->getHeight());
  			cairo_fill(cr);
  			break;
  
  		case litehtml::background_repeat_repeat_y:
  			cairo_set_source(cr, pattern);
  			cairo_rectangle(cr, bg.position_x, bg.clip_box.top(), bgbmp->getWidth(), bg.clip_box.height);
  			cairo_fill(cr);
  			break;
  
  		case litehtml::background_repeat_repeat:
  			cairo_set_source(cr, pattern);
  			cairo_rectangle(cr, bg.clip_box.left(), bg.clip_box.top(), bg.clip_box.width, bg.clip_box.height);
  			cairo_fill(cr);
  			break;
  		}
  
  		cairo_pattern_destroy(pattern);
  		cairo_surface_destroy(img);
  	}
  	unlock_images_cache();
  	cairo_restore(cr);
  }
  
  bool cairo_container::add_path_arc(cairo_t* cr, double x, double y, double rx, double ry, double a1, double a2, bool neg)
  {
  	if(rx > 0 && ry > 0)
  	{
  		cairo_save(cr);
  
  		cairo_translate(cr, x, y);
  		cairo_scale(cr, 1, ry / rx);
  		cairo_translate(cr, -x, -y);
  
  		if(neg)
  		{
  			cairo_arc_negative(cr, x, y, rx, a1, a2);
  		} else
  		{
  			cairo_arc(cr, x, y, rx, a1, a2);
  		}
  
  		cairo_restore(cr);
  		return true;
  	}
  	return false;
  }
  
  void cairo_container::draw_borders( litehtml::uint_ptr hdc, const litehtml::borders& borders, const litehtml::position& draw_pos, bool root )
  {
  	cairo_t* cr = (cairo_t*) hdc;
  	cairo_save(cr);
  	apply_clip(cr);
  
  	cairo_new_path(cr);
  
  	int bdr_top		= 0;
  	int bdr_bottom	= 0;
  	int bdr_left	= 0;
  	int bdr_right	= 0;
  
  	if(borders.top.width != 0 && borders.top.style > litehtml::border_style_hidden)
  	{
  		bdr_top = (int) borders.top.width;
  	}
  	if(borders.bottom.width != 0 && borders.bottom.style > litehtml::border_style_hidden)
  	{
  		bdr_bottom = (int) borders.bottom.width;
  	}
  	if(borders.left.width != 0 && borders.left.style > litehtml::border_style_hidden)
  	{
  		bdr_left = (int) borders.left.width;
  	}
  	if(borders.right.width != 0 && borders.right.style > litehtml::border_style_hidden)
  	{
  		bdr_right = (int) borders.right.width;
  	}
  
  	// draw right border
  	if (bdr_right)
  	{
  		set_color(cr, borders.right.color);
  
  		double r_top	= (double) borders.radius.top_right_x;
  		double r_bottom	= (double) borders.radius.bottom_right_x;
  
  		if(r_top)
  		{
  			double end_angle	= 2.0 * M_PI;
  			double start_angle	= end_angle - M_PI / 2.0  / ((double) bdr_top / (double) bdr_right + 0.5);
  
  			if (!add_path_arc(cr,
  					draw_pos.right() - r_top,
  					draw_pos.top() + r_top,
  					r_top - bdr_right,
  					r_top - bdr_right + (bdr_right - bdr_top),
  					end_angle,
  					start_angle, true))
  			{
  				cairo_move_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
  			}
  
  			if (!add_path_arc(cr,
  					draw_pos.right() - r_top,
  					draw_pos.top() + r_top,
  					r_top,
  					r_top,
  					start_angle,
  					end_angle, false))
  			{
  				cairo_line_to(cr, draw_pos.right(), draw_pos.top());
  			}
  		} else
  		{
  			cairo_move_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
  			cairo_line_to(cr, draw_pos.right(), draw_pos.top());
  		}
  
  		if(r_bottom)
  		{
  			cairo_line_to(cr, draw_pos.right(),	draw_pos.bottom() - r_bottom);
  
  			double start_angle	= 0;
  			double end_angle	= start_angle + M_PI / 2.0  / ((double) bdr_bottom / (double) bdr_right + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.right() - r_bottom,
  				draw_pos.bottom() - r_bottom,
  				r_bottom,
  				r_bottom,
  				start_angle,
  				end_angle, false))
  			{
  				cairo_line_to(cr, draw_pos.right(), draw_pos.bottom());
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.right() - r_bottom,
  				draw_pos.bottom() - r_bottom,
  				r_bottom - bdr_right,
  				r_bottom - bdr_right + (bdr_right - bdr_bottom),
  				end_angle,
  				start_angle, true))
  			{
  				cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.bottom() - bdr_bottom);
  			}
  		} else
  		{
  			cairo_line_to(cr, draw_pos.right(),	draw_pos.bottom());
  			cairo_line_to(cr, draw_pos.right() - bdr_right,	draw_pos.bottom() - bdr_bottom);
  		}
  
  		cairo_fill(cr);
  	}
  
  	// draw bottom border
  	if(bdr_bottom)
  	{
  		set_color(cr, borders.bottom.color);
  
  		double r_left	= borders.radius.bottom_left_x;
  		double r_right	= borders.radius.bottom_right_x;
  
  		if(r_left)
  		{
  			double start_angle	= M_PI / 2.0;
  			double end_angle	= start_angle + M_PI / 2.0  / ((double) bdr_left / (double) bdr_bottom + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_left,
  				draw_pos.bottom() - r_left,
  				r_left - bdr_bottom + (bdr_bottom - bdr_left),
  				r_left - bdr_bottom,
  				start_angle,
  				end_angle, false))
  			{
  				cairo_move_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_left,
  				draw_pos.bottom() - r_left,
  				r_left,
  				r_left,
  				end_angle,
  				start_angle, true))
  			{
  				cairo_line_to(cr, draw_pos.left(), draw_pos.bottom());
  			}
  		} else
  		{
  			cairo_move_to(cr, draw_pos.left(), draw_pos.bottom());
  			cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
  		}
  
  		if(r_right)
  		{
  			cairo_line_to(cr, draw_pos.right() - r_right,	draw_pos.bottom());
  
  			double end_angle	= M_PI / 2.0;
  			double start_angle	= end_angle - M_PI / 2.0  / ((double) bdr_right / (double) bdr_bottom + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.right() - r_right,
  				draw_pos.bottom() - r_right,
  				r_right,
  				r_right,
  				end_angle,
  				start_angle, true))
  			{
  				cairo_line_to(cr, draw_pos.right(), draw_pos.bottom());
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.right() - r_right,
  				draw_pos.bottom() - r_right,
  				r_right - bdr_bottom + (bdr_bottom - bdr_right),
  				r_right - bdr_bottom,
  				start_angle,
  				end_angle, false))
  			{
  				cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.bottom() - bdr_bottom);
  			}
  		} else
  		{
  			cairo_line_to(cr, draw_pos.right() - bdr_right,	draw_pos.bottom() - bdr_bottom);
  			cairo_line_to(cr, draw_pos.right(),	draw_pos.bottom());
  		}
  
  		cairo_fill(cr);
  	}
  
  	// draw top border
  	if(bdr_top)
  	{
  		set_color(cr, borders.top.color);
  
  		double r_left	= borders.radius.top_left_x;
  		double r_right	= borders.radius.top_right_x;
  
  		if(r_left)
  		{
  			double end_angle	= M_PI * 3.0 / 2.0;
  			double start_angle	= end_angle - M_PI / 2.0  / ((double) bdr_left / (double) bdr_top + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_left,
  				draw_pos.top() + r_left,
  				r_left,
  				r_left,
  				end_angle,
  				start_angle, true))
  			{
  				cairo_move_to(cr, draw_pos.left(), draw_pos.top());
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_left,
  				draw_pos.top() + r_left,
  				r_left - bdr_top + (bdr_top - bdr_left),
  				r_left - bdr_top,
  				start_angle,
  				end_angle, false))
  			{
  				cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
  			}
  		} else
  		{
  			cairo_move_to(cr, draw_pos.left(), draw_pos.top());
  			cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
  		}
  
  		if(r_right)
  		{
  			cairo_line_to(cr, draw_pos.right() - r_right,	draw_pos.top() + bdr_top);
  
  			double start_angle	= M_PI * 3.0 / 2.0;
  			double end_angle	= start_angle + M_PI / 2.0  / ((double) bdr_right / (double) bdr_top + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.right() - r_right,
  				draw_pos.top() + r_right,
  				r_right - bdr_top + (bdr_top - bdr_right),
  				r_right - bdr_top,
  				start_angle,
  				end_angle, false))
  			{
  				cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.right() - r_right,
  				draw_pos.top() + r_right,
  				r_right,
  				r_right,
  				end_angle,
  				start_angle, true))
  			{
  				cairo_line_to(cr, draw_pos.right(), draw_pos.top());
  			}
  		} else
  		{
  			cairo_line_to(cr, draw_pos.right() - bdr_right,	draw_pos.top() + bdr_top);
  			cairo_line_to(cr, draw_pos.right(),	draw_pos.top());
  		}
  
  		cairo_fill(cr);
  	}
  
  	// draw left border
  	if (bdr_left)
  	{
  		set_color(cr, borders.left.color);
  
  		double r_top	= borders.radius.top_left_x;
  		double r_bottom	= borders.radius.bottom_left_x;
  
  		if(r_top)
  		{
  			double start_angle	= M_PI;
  			double end_angle	= start_angle + M_PI / 2.0  / ((double) bdr_top / (double) bdr_left + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_top,
  				draw_pos.top() + r_top,
  				r_top - bdr_left,
  				r_top - bdr_left + (bdr_left - bdr_top),
  				start_angle,
  				end_angle, false))
  			{
  				cairo_move_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_top,
  				draw_pos.top() + r_top,
  				r_top,
  				r_top,
  				end_angle,
  				start_angle, true))
  			{
  				cairo_line_to(cr, draw_pos.left(), draw_pos.top());
  			}
  		} else
  		{
  			cairo_move_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
  			cairo_line_to(cr, draw_pos.left(), draw_pos.top());
  		}
  
  		if(r_bottom)
  		{
  			cairo_line_to(cr, draw_pos.left(),	draw_pos.bottom() - r_bottom);
  
  			double end_angle	= M_PI;
  			double start_angle	= end_angle - M_PI / 2.0  / ((double) bdr_bottom / (double) bdr_left + 0.5);
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_bottom,
  				draw_pos.bottom() - r_bottom,
  				r_bottom,
  				r_bottom,
  				end_angle,
  				start_angle, true))
  			{
  				cairo_line_to(cr, draw_pos.left(), draw_pos.bottom());
  			}
  
  			if (!add_path_arc(cr,
  				draw_pos.left() + r_bottom,
  				draw_pos.bottom() - r_bottom,
  				r_bottom - bdr_left,
  				r_bottom - bdr_left + (bdr_left - bdr_bottom),
  				start_angle,
  				end_angle, false))
  			{
  				cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
  			}
  		} else
  		{
  			cairo_line_to(cr, draw_pos.left(),	draw_pos.bottom());
  			cairo_line_to(cr, draw_pos.left() + bdr_left,	draw_pos.bottom() - bdr_bottom);
  		}
  
  		cairo_fill(cr);
  	}
  	cairo_restore(cr);
  }
  
  void cairo_container::set_clip(const litehtml::position& pos, const litehtml::border_radiuses& bdr_radius, bool valid_x, bool valid_y)
  {
  	litehtml::position clip_pos = pos;
  	litehtml::position client_pos;
  	get_client_rect(client_pos);
  	if(!valid_x)
  	{
  		clip_pos.x		= client_pos.x;
  		clip_pos.width	= client_pos.width;
  	}
  	if(!valid_y)
  	{
  		clip_pos.y		= client_pos.y;
  		clip_pos.height	= client_pos.height;
  	}
  	m_clips.emplace_back(clip_pos, bdr_radius);
  }
  
  void cairo_container::del_clip()
  {
  	if(!m_clips.empty())
  	{
  		m_clips.pop_back();
  	}
  }
  
  void cairo_container::apply_clip( cairo_t* cr )
  {
  	for(const auto& clip_box : m_clips)
  	{
  		rounded_rectangle(cr, clip_box.box, clip_box.radius);
  		cairo_clip(cr);
  	}
  }
  
  void cairo_container::draw_ellipse( cairo_t* cr, int x, int y, int width, int height, const litehtml::web_color& color, double line_width )
  {
  	if(!cr) return;
  	cairo_save(cr);
  
  	apply_clip(cr);
  
  	cairo_new_path(cr);
  
  	cairo_translate (cr, x + width / 2.0, y + height / 2.0);
  	cairo_scale (cr, width / 2.0, height / 2.0);
  	cairo_arc (cr, 0, 0, 1, 0, 2 * M_PI);
  
  	set_color(cr, color);
  	cairo_set_line_width(cr, line_width);
  	cairo_stroke(cr);
  
  	cairo_restore(cr);
  }
  
  void cairo_container::fill_ellipse( cairo_t* cr, int x, int y, int width, int height, const litehtml::web_color& color )
  {
  	if(!cr) return;
  	cairo_save(cr);
  
  	apply_clip(cr);
  
  	cairo_new_path(cr);
  
  	cairo_translate (cr, x + width / 2.0, y + height / 2.0);
  	cairo_scale (cr, width / 2.0, height / 2.0);
  	cairo_arc (cr, 0, 0, 1, 0, 2 * M_PI);
  
  	set_color(cr, color);
  	cairo_fill(cr);
  
  	cairo_restore(cr);
  }
  
  void cairo_container::clear_images()
  {
  	lock_images_cache();
  	m_images.clear();
  	unlock_images_cache();
  }
  
  const litehtml::tchar_t* cairo_container::get_default_font_name() const
  {
  	return _t("Times New Roman");
  }
  
  void cairo_container::draw_txdib( cairo_t* cr, CTxDIB* bmp, int x, int y, int cx, int cy )
  {
  	cairo_save(cr);
  
  	cairo_matrix_t flib_m;
  	cairo_matrix_init(&flib_m, 1, 0, 0, -1, 0, 0);
  
  	cairo_surface_t* img = NULL;
  
  	CTxDIB rbmp;
  
  	if(cx != bmp->getWidth() || cy != bmp->getHeight())
  	{
  		bmp->resample(cx, cy, &rbmp);
  		img = cairo_image_surface_create_for_data((unsigned char*) rbmp.getBits(), CAIRO_FORMAT_ARGB32, rbmp.getWidth(), rbmp.getHeight(), rbmp.getWidth() * 4);
  		cairo_matrix_translate(&flib_m, 0, -rbmp.getHeight());
  		cairo_matrix_translate(&flib_m, x, -y);
  	} else
  	{
  		img = cairo_image_surface_create_for_data((unsigned char*) bmp->getBits(), CAIRO_FORMAT_ARGB32, bmp->getWidth(), bmp->getHeight(), bmp->getWidth() * 4);
  		cairo_matrix_translate(&flib_m, 0, -bmp->getHeight());
  		cairo_matrix_translate(&flib_m, x, -y);
  	}
  
  	cairo_transform(cr, &flib_m);
  	cairo_set_source_surface(cr, img, 0, 0);
  	cairo_paint(cr);
  
  	cairo_restore(cr);
  	cairo_surface_destroy(img);
  }
  
  void cairo_container::rounded_rectangle(cairo_t* cr, const litehtml::position& pos, const litehtml::border_radiuses& radius)
  {
  	cairo_new_path(cr);
  	if(radius.top_left_x)
  	{
  		cairo_arc(cr, pos.left() + radius.top_left_x, pos.top() + radius.top_left_x, radius.top_left_x, M_PI, M_PI * 3.0 / 2.0);
  	} else
  	{
  		cairo_move_to(cr, pos.left(), pos.top());
  	}
  
  	cairo_line_to(cr, pos.right() - radius.top_right_x, pos.top());
  
  	if(radius.top_right_x)
  	{
  		cairo_arc(cr, pos.right() - radius.top_right_x, pos.top() + radius.top_right_x, radius.top_right_x, M_PI * 3.0 / 2.0, 2.0 * M_PI);
  	}
  
  	cairo_line_to(cr, pos.right(), pos.bottom() - radius.bottom_right_x);
  
  	if(radius.bottom_right_x)
  	{
  		cairo_arc(cr, pos.right() - radius.bottom_right_x, pos.bottom() - radius.bottom_right_x, radius.bottom_right_x, 0, M_PI / 2.0);
  	}
  
  	cairo_line_to(cr, pos.left() - radius.bottom_left_x, pos.bottom());
  
  	if(radius.bottom_left_x)
  	{
  		cairo_arc(cr, pos.left() + radius.bottom_left_x, pos.bottom() - radius.bottom_left_x, radius.bottom_left_x, M_PI / 2.0, M_PI);
  	}
  }
  
  void cairo_container::remove_image( std::wstring& url )
  {
  	lock_images_cache();
  	images_map::iterator i = m_images.find(url);
  	if(i != m_images.end())
  	{
  		m_images.erase(i);
  	}
  	unlock_images_cache();
  }
  
  void cairo_container::add_image(std::wstring& url, image_ptr& img)
  {
  	lock_images_cache();
  	images_map::iterator i = m_images.find(url);
  	if(i != m_images.end())
  	{
  		if(img)
  		{
  			i->second = img;
  		} else
  		{
  			m_images.erase(i);
  		}
  	}
  	unlock_images_cache();
  }
  
  void cairo_container::lock_images_cache()
  {
  	EnterCriticalSection(&m_img_sync);
  }
  
  void cairo_container::unlock_images_cache()
  {
  	LeaveCriticalSection(&m_img_sync);
  }
  
  std::shared_ptr<litehtml::element> cairo_container::create_element(const litehtml::tchar_t* tag_name, const litehtml::string_map& attributes, const std::shared_ptr<litehtml::document>& doc)
  {
  	return 0;
  }
  
  void cairo_container::get_media_features(litehtml::media_features& media)  const
  {
  	litehtml::position client;
  	get_client_rect(client);
  	HDC hdc = GetDC(NULL);
  
  	media.type			= litehtml::media_type_screen;
  	media.width			= client.width;
  	media.height		= client.height;
  	media.color			= 8;
  	media.monochrome	= 0;
  	media.color_index	= 256;
  	media.resolution	= GetDeviceCaps(hdc, LOGPIXELSX);
  	media.device_width	= GetDeviceCaps(hdc, HORZRES);
  	media.device_height	= GetDeviceCaps(hdc, VERTRES);
  
  	ReleaseDC(NULL, hdc);
  }
  
  void cairo_container::get_language(litehtml::tstring& language, litehtml::tstring & culture) const
  {
  	language = _t("en");
  	culture = _t("");
  }
  
  void cairo_container::make_url_utf8( const char* url, const char* basepath, std::wstring& out )
  {
  	wchar_t* urlW = cairo_font::utf8_to_wchar(url);
  	wchar_t* basepathW = cairo_font::utf8_to_wchar(basepath);
  	make_url(urlW, basepathW, out);
  
  	if(urlW) delete urlW;
  	if(basepathW) delete basepathW;
  }
  
  void cairo_container::transform_text( litehtml::tstring& text, litehtml::text_transform tt )
  {
  	if(text.empty()) return;
  
  #ifndef LITEHTML_UTF8
  	switch(tt)
  	{
  	case litehtml::text_transform_capitalize:
  		if(!text.empty())
  		{
  			text[0] = (WCHAR) CharUpper((LPWSTR) text[0]);
  		}
  		break;
  	case litehtml::text_transform_uppercase:
  		for(size_t i = 0; i < text.length(); i++)
  		{
  			text[i] = (WCHAR) CharUpper((LPWSTR) text[i]);
  		}
  		break;
  	case litehtml::text_transform_lowercase:
  		for(size_t i = 0; i < text.length(); i++)
  		{
  			text[i] = (WCHAR) CharLower((LPWSTR) text[i]);
  		}
  		break;
  	}
  #else
  	LPWSTR txt = cairo_font::utf8_to_wchar(text.c_str());
  	switch(tt)
  	{
  	case litehtml::text_transform_capitalize:
  		CharUpperBuff(txt, 1);
  		break;
  	case litehtml::text_transform_uppercase:
  		CharUpperBuff(txt, lstrlen(txt));
  		break;
  	case litehtml::text_transform_lowercase:
  		CharLowerBuff(txt, lstrlen(txt));
  		break;
  	}
  	LPSTR txtA = cairo_font::wchar_to_utf8(txt);
  	text = txtA;
  	delete txtA;
  	delete txt;
  #endif
  }
  
  void cairo_container::link(const std::shared_ptr<litehtml::document>& doc, const litehtml::element::ptr& el)
  {
  }
  
  litehtml::tstring cairo_container::resolve_color(const litehtml::tstring& color) const
  {
  	struct custom_color 
  	{
  		litehtml::tchar_t*	name;
  		int					color_index;
  	};
  
  	static custom_color colors[] = {
  		{ _t("ActiveBorder"),          COLOR_ACTIVEBORDER},
  		{ _t("ActiveCaption"),         COLOR_ACTIVECAPTION},
  		{ _t("AppWorkspace"),          COLOR_APPWORKSPACE },
  		{ _t("Background"),            COLOR_BACKGROUND },
  		{ _t("ButtonFace"),            COLOR_BTNFACE },
  		{ _t("ButtonHighlight"),       COLOR_BTNHIGHLIGHT },
  		{ _t("ButtonShadow"),          COLOR_BTNSHADOW },
  		{ _t("ButtonText"),            COLOR_BTNTEXT },
  		{ _t("CaptionText"),           COLOR_CAPTIONTEXT },
          { _t("GrayText"),              COLOR_GRAYTEXT },
  		{ _t("Highlight"),             COLOR_HIGHLIGHT },
  		{ _t("HighlightText"),         COLOR_HIGHLIGHTTEXT },
  		{ _t("InactiveBorder"),        COLOR_INACTIVEBORDER },
  		{ _t("InactiveCaption"),       COLOR_INACTIVECAPTION },
  		{ _t("InactiveCaptionText"),   COLOR_INACTIVECAPTIONTEXT },
  		{ _t("InfoBackground"),        COLOR_INFOBK },
  		{ _t("InfoText"),              COLOR_INFOTEXT },
  		{ _t("Menu"),                  COLOR_MENU },
  		{ _t("MenuText"),              COLOR_MENUTEXT },
  		{ _t("Scrollbar"),             COLOR_SCROLLBAR },
  		{ _t("ThreeDDarkShadow"),      COLOR_3DDKSHADOW },
  		{ _t("ThreeDFace"),            COLOR_3DFACE },
  		{ _t("ThreeDHighlight"),       COLOR_3DHILIGHT },
  		{ _t("ThreeDLightShadow"),     COLOR_3DLIGHT },
  		{ _t("ThreeDShadow"),          COLOR_3DSHADOW },
  		{ _t("Window"),                COLOR_WINDOW },
  		{ _t("WindowFrame"),           COLOR_WINDOWFRAME },
  		{ _t("WindowText"),            COLOR_WINDOWTEXT }
  	};
  
      if (color == _t("Highlight"))
      {
          int iii = 0;
          iii++;
      }
  
      for (auto& clr : colors)
      {
  		if (!litehtml::t_strcasecmp(clr.name, color.c_str()))
          {
              litehtml::tchar_t  str_clr[20];
              DWORD rgb_color =  GetSysColor(clr.color_index);
  #ifdef LITEHTML_UTF8
              StringCchPrintfA(str_clr, 20, "#%02X%02X%02X", GetRValue(rgb_color), GetGValue(rgb_color), GetBValue(rgb_color));
  #else
              StringCchPrintf(str_clr, 20, L"#%02X%02X%02X", GetRValue(rgb_color), GetGValue(rgb_color), GetBValue(rgb_color));
  #endif // LITEHTML_UTF8
              return std::move(litehtml::tstring(str_clr));
          }
      }
      return std::move(litehtml::tstring());
  }
  