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C++ RefPtr::stroke方法代码示例

本文整理汇总了C++中cairo::RefPtr::stroke方法的典型用法代码示例。如果您正苦于以下问题:C++ RefPtr::stroke方法的具体用法?C++ RefPtr::stroke怎么用?C++ RefPtr::stroke使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在cairo::RefPtr的用法示例。


在下文中一共展示了RefPtr::stroke方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: draw

void enigma_rotor_window::draw(Cairo::RefPtr<Cairo::Context> cr)
{
    vector<double> dashes;
    // Pattern used to draw a dashed line (15 pixels of line followed by 15 "empty" pixels)
    dashes.push_back(15.0);
    dashes.push_back(15.0);
    
    if (has_ellipse)
    {
        cr->save();
        
            // Draw background ellipse
            cr->set_source_rgb(bkg_r, bkg_g, bkg_b);
            draw_ellipse(cr, x, y, ellipse_width, ellipse_height);
            cr->fill();
            // Draw black border of background ellipse
            cr->set_source_rgb(BLACK);
            cr->set_line_width(1.2);
            draw_ellipse(cr, x, y, ellipse_width, ellipse_height);
            cr->stroke();
        
        cr->restore();
    }
    
    cr->save();  
    
        // Draw a line of width rotor_rim_width in the dash background colour
        cr->set_line_width(rotor_rim_width);
        cr->set_source_rgb(dash_bkg_r, dash_bkg_g, dash_bkg_b);
        cr->move_to(x + window_size, y - (2 * window_size));
        cr->line_to(x + window_size, y + (2 * window_size));
        cr->stroke();
        
        // Draw a dashed line in the dash colour inside the previously drawn line
        // This creates the impression of "notches" on the handle/rim
        cr->set_source_rgb(dash_r, dash_g, dash_b);
        cr->set_dash(dashes, ((wheel_pos - 'A') & 1) * 15); // modifying the offset creates illusion of movement
        
        cr->move_to(x + window_size, y - (2 * window_size));
        cr->line_to(x + window_size, y + (2 * window_size));
        cr->stroke();
        
        // Draw border around handle/rim
        cr->set_line_width(2.0);
        cr->unset_dash();
        cr->set_source_rgb(DARK_GREY);
        cr->rectangle(x + padded_size, y - (2 * window_size), rotor_rim_width, (4 * window_size));
        cr->stroke();
    
    cr->restore();

    draw_wheel_pos(cr, wheel_pos);
    
    if (has_ellipse)
    {
        // Draw screws
        upper->draw(cr);
        lower->draw(cr);    
    }
}
开发者ID:rmsk2,项目名称:rmsk2,代码行数:60,代码来源:rotor_window.cpp

示例2: DrawObstacles

void MapDrawArea::DrawObstacles(const Cairo::RefPtr<Cairo::Context>& cr)
{
	// Get size characteristics of the window
	Gtk::Allocation allocation = get_allocation();
	const int width = allocation.get_width();
	const int height = allocation.get_height();
	const int lesser = MIN(width, height);

	// We should be able to just store the obstacles and path once
	// Do need to update based on the window size
	std::vector<Coord> vObstacles = guiMapData.copyObstacles();
	Coord maxXY = guiMapData.copyMaxCoord();
	Coord originCoord = guiMapData.copyStartCoord();
	Coord goalCoord = guiMapData.copyEndCoord();

	// These have to be updated each iteration
	originCoord.x = int( float(width)*float(originCoord.x)/float(maxXY.x) );
	originCoord.y = int( float(height)*float(originCoord.y)/float(maxXY.y) );
	goalCoord.x = int( float(width)*float(goalCoord.x)/float(maxXY.x) );
	goalCoord.y = int( float(height)*float(goalCoord.y)/float(maxXY.y) );

	// Draw obstacles
	std::vector<Coord> scaledObstacleCoord;
	std::vector<Coord> rawObstacleCoord = guiMapData.copyObstacles();
	Coord stdCoord;

	// Adjust obstacle values based on window size
	for(std::vector<Coord>::const_iterator itr=rawObstacleCoord.begin();itr!=rawObstacleCoord.end();++itr)
	{
		stdCoord.x = int( float(width)*float(itr->x)/float(maxXY.x) );
		stdCoord.y = int( height*float(itr->y)/float(maxXY.y) );
		scaledObstacleCoord.push_back(stdCoord);
	}

	cr->save();
	cr->set_source_rgb(0.0, 0.0, 0.0);	// black for obstacles
	cr->set_line_width(lesser * 0.005);
	cr->set_line_cap(Cairo::LINE_CAP_ROUND);

	// Plot obstacles
	for(std::vector<Coord>::iterator itr=scaledObstacleCoord.begin();itr != scaledObstacleCoord.end();++itr)
	{
		cr->move_to( itr->x,itr->y );
		cr->line_to( itr->x,itr->y );
		cr->stroke();
	}

	// Plot start/end coord
	cr->save();
	cr->set_line_width(lesser * 0.015);
	cr->set_source_rgb(1.0, 0.0, 0.0);	// red for start point
	cr->move_to( originCoord.x,originCoord.y );
	cr->line_to( originCoord.x,originCoord.y );
	cr->stroke();
	cr->save();
	cr->set_source_rgb(0.0, 1.0, 0.0);	// green for end point
	cr->move_to( goalCoord.x,goalCoord.y );
	cr->line_to( goalCoord.x,goalCoord.y );
	cr->stroke();
}
开发者ID:fultoncjb,项目名称:astar,代码行数:60,代码来源:menuwindow.cpp

示例3: drawPoints

void ActivityDrawingArea::drawPoints(std::map<double, double> & ps, const double reference_line) {
	//std::cout<<"ActivityDrawingArea::drawPoints: " <<std::endl;
	// This is where we draw on the window
	Glib::RefPtr < Gdk::Window > window = get_window();
	Cairo::RefPtr < Cairo::Context > cr = window->create_cairo_context();
	cr->save();
	Gtk::Allocation allocation = get_allocation();
	const int width = allocation.get_width();
	const int height = allocation.get_height();

	cr->set_line_width(2.0);
	//  std::cout<<"ActivityDrawingArea::drawPoints: colour: "<<"("<<main_colour[0]<<","<<main_colour[1]<<","<< main_colour[2] <<std::endl;
	this->setSourceRGB(cr, currentColourScheme.getMainColour());

	//scale the drawing in x and y
	double maxy = 0;
	std::map<double, double>::iterator it_ps = ps.begin();
	while (it_ps != ps.end()) {
		if (it_ps->second < 0 && -(it_ps->second) > maxy) {
			maxy = -(it_ps->second);
		} else if (it_ps->second > 0 && (it_ps->second) > maxy) {
			maxy = (it_ps->second);
		}
		++it_ps;
	}

	double scaley = 0.2 * (double) ActivityDrawingArea::ACTIVITY_HEIGHT / maxy;
	double scalex = 10;

	it_ps = ps.begin();
	if (it_ps != ps.end()) {
		cr->move_to(scalex * it_ps->first, (0.5 * height) - (scaley * it_ps->second));
	} else {
		cr->move_to(0, height / 2);
	}
	while (it_ps != ps.end()) {
		//	std::cout<<"ActivityDrawingArea::drawPoints: " << it_ps->first <<","<<-it_ps->second<<std::endl;
		cr->line_to((scalex * it_ps->first), (0.5 * height) - (scaley * it_ps->second));
		++it_ps;
	}
	cr->stroke();

	// draw reference line if not zero
	if (reference_line>0.00001 || reference_line < -0.00001) {
		Gdk::Color temp_colour(currentColourScheme.getMainColour());
		this->setSourceRGB(cr, Gdk::Color("tomato"));
		cr->set_line_width(1.0);
		const std::vector<double> dashed= { 1.0 };
		cr->set_dash(dashed, 1);
		double scaled_reference_line = (0.5 * height) - (scaley * reference_line);
		double neg_scaled_reference_line = (0.5 * height) + (scaley * reference_line);
		cr->move_to(0, scaled_reference_line);
		cr->line_to(width, scaled_reference_line);
		cr->move_to(0, neg_scaled_reference_line);
			cr->line_to(width, neg_scaled_reference_line);
		cr->stroke();
	}
	cr->restore();
}
开发者ID:niallcreech,项目名称:cryoviewer,代码行数:59,代码来源:ActivityDrawingArea.cpp

示例4: drawCairo

int drawCairo(const string& fname,
        const valarray<double>& Xin, const valarray<double>& Yin, 
        const Hull& hull) {
#ifdef CAIRO_HAS_SVG_SURFACE
    unsigned n=Xin.size();
    assert(Yin.size()==n);

    // normalise coords to range 0-1
    valarray<double> X=Xin, Y=Yin;
    X-=X.min();
    Y-=Y.min();
    X/=X.max();
    Y/=Y.max();

    Cairo::RefPtr<Cairo::SvgSurface> surface =
        Cairo::SvgSurface::create(fname, width+2*border, height+2*border);

    Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);

    cr->save(); // save the state of the context
    cr->set_source_rgba(0.0, 0.0, 0.0, 0.7);
    // draw a circle at each coordinate
    for(unsigned i=0;i<n;i++) {
        dot(cr,xcoord(X[i]),ycoord(Y[i]));
    }

    cr->set_source_rgba(0.0, 0.0, 0.0, 0.3);
    cr->move_to(xcoord(X[hull[0]]),ycoord(Y[hull[0]]));
    for(unsigned i=1;i<hull.size();i++) {
        cr->line_to(xcoord(X[hull[i]]),ycoord(Y[hull[i]]));
    }
    cr->line_to(xcoord(X[hull[0]]),ycoord(Y[hull[0]]));
    cr->stroke();
    cr->set_source_rgba(0.0, 0.0, 0.0, 1.);
    for(vector<unsigned>::const_iterator i=hull.begin();i!=hull.end();++i) {
        unsigned j=*i;
        stringstream ss;
        ss<<j;
        printf("p[%d]=(%f,%f)\n",j,X[j],Y[j]);
        cr->move_to(xcoord(X[j]),ycoord(Y[j]));
        cr->show_text(ss.str());
        cr->stroke();
    }
    cr->restore();

    cr->show_page();

    cout << "Wrote SVG file \"" << fname << "\"" << endl;
    return 0;

#else

    cout << "You must compile cairo with SVG support for this example to work."
        << endl;
    return 1;

#endif

}
开发者ID:AidanDelaney,项目名称:adaptagrams,代码行数:59,代码来源:convex_hull.cpp

示例5: draw_keyboard

void RegionChooser::draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
                                  int clip_low, int clip_high) {
    const int h = KEYBOARD_HEIGHT;
    const int w = get_width() - 1;
    const int bh = int(h * 0.55);

    Gdk::Cairo::set_source_rgba(cr, black);
    cr->rectangle(0.5, h1 + 0.5, w, h - 1);
    cr->stroke();

    int x1 = key_to_x(20.5, w);
    Gdk::Cairo::set_source_rgba(cr, grey1);
    cr->rectangle(1, h1 + 1, x1 - 1, h - 2);
    cr->fill();

    int x2 = key_to_x(109.5, w);
    Gdk::Cairo::set_source_rgba(cr, white);
    cr->rectangle(x1 + 1, h1 + 1, x2 - x1 - 1, h - 2);
    cr->fill();

    Gdk::Cairo::set_source_rgba(cr, grey1);
    cr->rectangle(x2 + 1, h1 + 1, w - x2 - 1, h - 2);
    cr->fill();

    Gdk::Cairo::set_source_rgba(cr, black);

    int clipkey1 = std::max(0, x_to_key_right(clip_low - 1, w));
    int clipkey2 = std::min(x_to_key_right(clip_high - 1, w) + 1, 128);

    for (int i = clipkey1 ; i < clipkey2 ; i++) {
        int note = (i + 3) % 12;
        int x = key_to_x(i, w);

        if (note == 1 || note == 4 || note == 6 ||
            note == 9 || note == 11) {
            // black key: short line in the middle, with a rectangle
            // on top
            int x2 = key_to_x(i + 0.5, w);
            cr->move_to(x2 + 0.5, h1 + bh + 0.5);
            cr->line_to(x2 + 0.5, h1 + h - 1);
            cr->stroke();

            int x3 = key_to_x(i + 1, w);
            cr->rectangle(x, h1 + 1, x3 - x + 1, bh);
            cr->fill();
        } else if (note == 3 || note == 8) {
            // C or F: long line to the left
            cr->move_to(x + 0.5, h1 + 1);
            cr->line_to(x + 0.5, h1 + h - 1);
            cr->stroke();
        }

        if (key_pressed[i]) draw_key(cr, i);

        if (note == 3) draw_digit(cr, i);
    }
}
开发者ID:lxlxlo,项目名称:LS-gigedit,代码行数:57,代码来源:regionchooser.cpp

示例6: if

void BezierPath::Invocation::draw(const Cairo::RefPtr<Cairo::Context> & cr)
{
	if (!path) return;	
	
	//Execute the bezier path.
	path->execute(cr);
	
	//Stroke, fill or do both.
	if (stroke && fill) {
		cr->fill_preserve();
		cr->stroke();
	}
	else if (stroke) cr->stroke();
	else if (fill)   cr->fill();
}
开发者ID:fabianschuiki,项目名称:Voltam,代码行数:15,代码来源:invocation.cpp

示例7: on_draw

bool Balls::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
  Gtk::Allocation allocation = get_allocation();
  const int width = allocation.get_width();
  const int height = allocation.get_height();

  cr->save();
  cr->scale(width, height);

  cr->set_line_width(0.001);
  for (auto ball : balls_)
    {
      cr->set_source_rgb(ball.color_r,ball.color_g,ball.color_b);
      cr->arc(ball.p.x,ball.p.y,
              ball.rad,
              0,2*M_PI);
      cr->fill();
      cr->stroke();
    }

  cr->restore();

  const Ball &ball1 = balls_[balls_.size()-1];
  std::ostringstream info;
  info << "x = " << ball1.p.x << "\ny = " << ball1.p.y;
  infobox_.show(cr,width,height,info.str());

  return true;
}
开发者ID:jogojapan,项目名称:simul,代码行数:29,代码来源:balls.cpp

示例8: HomPoint

void
HomVectorDrawer::draw(Cairo::RefPtr<Cairo::Context>& context)
{
  context->save();

  HomPoint start, end;
  if (m_offset)
    {
      start = HomPoint( m_offset->x(), m_offset->y() );
      end   = HomPoint( m_offset->x() + m_vector->x(),
			m_offset->y() + m_vector->y() );
    }
  else
    {
      start = HomPoint( 0.0, 0.0 );
      end   = HomPoint( m_vector->x(), m_vector->y() );
    }

  context->move_to( start.x(), start.y() );
  context->line_to( end.x()  , end.y()   );
  context->arc( end.x(), end.y(), 0.06, 0.0, 2.0 * M_PI);
  context->fill();

  context->stroke();
  context->restore();
}
开发者ID:fuxiang90,项目名称:fawkes,代码行数:26,代码来源:hom_vector_drawer.cpp

示例9:

static void
skillgui_cairo_render_bezier(GVJ_t * job, pointf * A, int n, int arrow_at_start,
		int arrow_at_end, int filled)
{
#ifdef USE_GVPLUGIN_TIMETRACKER
  __tt.ping_start(__ttc_bezier);
  ++__num_bezier;
#endif
  //printf("Bezier\n");
  SkillGuiCairoRenderInstructor *cri = (SkillGuiCairoRenderInstructor *)job->context;
  Cairo::RefPtr<Cairo::Context> cairo = cri->get_cairo();
  obj_state_t *obj = job->obj;

  skillgui_cairo_set_penstyle(cairo, job);

  cairo->move_to(A[0].x, -A[0].y);
  for (int i = 1; i < n; i += 3)
    cairo->curve_to(A[i].x, -A[i].y, A[i + 1].x, -A[i + 1].y,
		    A[i + 2].x, -A[i + 2].y);
  if (filled) {
    skillgui_cairo_set_color(cairo, &(obj->fillcolor));
    cairo->fill_preserve();
  }
  skillgui_cairo_set_color(cairo, &(obj->pencolor));
  cairo->stroke();

#ifdef USE_GVPLUGIN_TIMETRACKER
  __tt.ping_end(__ttc_bezier);
#endif
}
开发者ID:timn,项目名称:ros-skillgui,代码行数:30,代码来源:gvplugin_skillgui_cairo.cpp

示例10:

bool
ButtonWidget::on_expose_event(GdkEventExpose* event)
{
  Gtk::DrawingArea::on_expose_event(event);
  Glib::RefPtr<Gdk::Window> window = get_window();
  if(window)
    {
      Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();

      int w  = get_allocation().get_width()  - 10;
      int h  = get_allocation().get_height() - 10;

      cr->set_source_rgb(0.0, 0.0, 0.0);
      cr->set_line_width(1.0);
      cr->translate(5, 5);
      cr->rectangle(0, 0, w, h);
      
      if (down)
        cr->fill_preserve();

      cr->stroke();

      if (down)
        cr->set_source_rgb(1.0, 1.0, 1.0);

      // FIXME: There are better ways to center text
      if (name.size() == 2)
        cr->move_to(w/2-6, h/2+3);
      else
        cr->move_to(w/2-4, h/2+3);
      cr->show_text(name);
    }

  return true;
}
开发者ID:Dynalon,项目名称:jstest-gtk,代码行数:35,代码来源:button_widget.cpp

示例11: switch

        /** Drawing event handler. */
        virtual bool
        on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
        {
            switch (_curShape) {
            case SHAPE_RECTANGLE:
                cr->rectangle(20, 20, 200, 100);
                cr->set_source_rgb(0, 0.8, 0);
                cr->fill_preserve();
                break;
            case SHAPE_ELLIPSE:
                cr->arc(150, 100, 90, 0, 2 * 3.14);
                cr->set_source_rgb(0.8, 0, 0);
                cr->fill_preserve();
                break;
            case SHAPE_TRIANGLE:
                cr->move_to(40, 40);
                cr->line_to(200, 40);
                cr->line_to(120, 160);
                cr->line_to(40, 40);
                cr->set_source_rgb(0.8, 0, 0.8);
                cr->fill_preserve();
                cr->set_line_cap(Cairo::LINE_CAP_ROUND);
                cr->set_line_join(Cairo::LINE_JOIN_ROUND);
                break;
            }

            cr->set_line_width(3);
            cr->set_source_rgb(0, 0, 0);
            cr->stroke();
            return true;
        }
开发者ID:vagran,项目名称:adk,代码行数:32,代码来源:main.cpp

示例12: DrawOptimalPath

void MapDrawArea::DrawOptimalPath(const Cairo::RefPtr<Cairo::Context>& cr)
{
	// This is where we draw on the window
	Gtk::Allocation allocation = get_allocation();
	const int width = allocation.get_width();
	const int height = allocation.get_height();
	const int lesser = MIN(width, height);
	const Coord maxXY = guiMapData.copyMaxCoord();

	// Copy the optimal path to the draw area
	std::vector<Coord> optimalPath = guiMapData.copyOptPath();

	// Plot the path
	cr->save();
	cr->set_source_rgb(1.0, 0.08, 0.58);	// pink for path
	cr->set_line_width(lesser * 0.005);
	cr->set_line_cap(Cairo::LINE_CAP_ROUND);

	for(std::vector<Coord>::iterator itr=optimalPath.begin();itr != optimalPath.end();++itr)
	{
		cr->move_to( int( float(width)*float(itr->x)/float(maxXY.x) ),int( height*float(itr->y)/float(maxXY.y)));
		cr->line_to( int( float(width)*float(itr->x)/float(maxXY.x) ),int( height*float(itr->y)/float(maxXY.y)));
		cr->stroke();
	}
}
开发者ID:fultoncjb,项目名称:astar,代码行数:25,代码来源:menuwindow.cpp

示例13: pw

void
Renderer_Dragbox::render_vfunc(
	const Glib::RefPtr<Gdk::Window>& drawable,
	const Gdk::Rectangle& /*expose_area*/
)
{
	assert(get_work_area());
	if(!get_work_area())
		return;

	// const synfig::Vector focus_point(get_work_area()->get_focus_point());
	// Warning : Unused focus_point
	int drawable_w = drawable->get_width();
	int drawable_h = drawable->get_height();

	Cairo::RefPtr<Cairo::Context> cr = drawable->create_cairo_context();

	const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
	const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
	const float pw(get_pw()),ph(get_ph());

	const synfig::Point& curr_point(get_curr_point());
	const synfig::Point& drag_point(get_drag_point());

	{
		cr->save();
		cr->set_line_cap(Cairo::LINE_CAP_BUTT);
		cr->set_line_join(Cairo::LINE_JOIN_MITER);
		cr->set_antialias(Cairo::ANTIALIAS_NONE);

		cr->set_line_width(1.0);
		cr->set_source_rgb(0,0,0);
		std::valarray<double> dashes(2);
		dashes[0]=5.0;
		dashes[1]=5.0;
		cr->set_dash(dashes, 0);

		Point tl(std::min(drag_point[0],curr_point[0]),std::min(drag_point[1],curr_point[1]));
		Point br(std::max(drag_point[0],curr_point[0]),std::max(drag_point[1],curr_point[1]));

		tl[0]=(tl[0]-window_startx)/pw;
		tl[1]=(tl[1]-window_starty)/ph;
		br[0]=(br[0]-window_startx)/pw;
		br[1]=(br[1]-window_starty)/ph;
		if(tl[0]>br[0])
			swap(tl[0],br[0]);
		if(tl[1]>br[1])
			swap(tl[1],br[1]);

		cr->rectangle(
			tl[0],
			tl[1],
			br[0]-tl[0],
			br[1]-tl[1]
		);
		cr->stroke();

		cr->restore();
	}
}
开发者ID:binarytemple,项目名称:synfig,代码行数:60,代码来源:renderer_dragbox.cpp

示例14: drawAxis

void ActivityDrawingArea::drawAxis() {
	// draw a reference axis and pod info
	Glib::RefPtr < Gdk::Window > window = get_window();
	Cairo::RefPtr < Cairo::Context > cr = window->create_cairo_context();
	Gtk::Allocation allocation = get_allocation();
	const int width = allocation.get_width();
	const int height = allocation.get_height();

	//draw axis
	cr->save();
	cr->set_line_width(2.0);
	this->setSourceRGB(cr, currentColourScheme.getAxisColour());
	cr->set_font_size(12);

	cr->move_to(0, height / 2);
	cr->line_to(width, height / 2);

	cr->move_to(190, 25 + height / 2);
	cr->show_text("20");
	cr->move_to(390, 25 + height / 2);
	cr->show_text("40");
	cr->move_to(590, 25 + height / 2);
	cr->show_text("60");
	cr->move_to(790, 25 + height / 2);
	cr->show_text("80");

	cr->stroke();
	cr->restore();
}
开发者ID:niallcreech,项目名称:cryoviewer,代码行数:29,代码来源:ActivityDrawingArea.cpp

示例15: draw_grid

void Simple_GOL_Area::draw_grid(const Cairo::RefPtr<Cairo::Context>& cr, int window_width, int window_height)
{	
	int data_amount = sim_data->get_size();
	
	if (data_amount != 0)
	{
		//sim_data->set_width(20);
		double step_value_x = double(window_width)/double(sim_data->get_width());
		double step_value_y = double(window_height)/double(sim_data->get_height());

		cr->save();
	
		cr->set_line_width(1.0);
		cr->set_source_rgb(0.5,0.5,1);
		cr->move_to(0,0);

		for(double i=0; i<window_width; i = i+ step_value_x)
		{
			cr->move_to(i, 0);
			cr->line_to(i, window_height);
		}
	
		for(double i=0; i<window_height; i = i+step_value_y)
		{
			cr->move_to(0, i);
			cr->line_to(window_width, i);
		}
	
		cr->stroke();
		cr->restore();
	}	
}
开发者ID:SeanFC,项目名称:Conways_GOL,代码行数:32,代码来源:Conways_Game_Of_Life.cpp


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