void line_to__(Glib::ustring& d1,Glib::ustring& d2){ cr_->line_to(s2f__(d1),s2f__(d2)); }
void Renderer_Ducks::render_vfunc( const Glib::RefPtr<Gdk::Drawable>& drawable, const Gdk::Rectangle& /*expose_area*/ ) { assert(get_work_area()); if(!get_work_area()) return; const synfig::Point window_start(get_work_area()->get_window_tl()); const float pw(get_pw()),ph(get_ph()); const bool solid_lines(get_work_area()->solid_lines); bool alternative = get_work_area()->get_alternative_mode(); const std::list<etl::handle<Duckmatic::Bezier> >& bezier_list(get_work_area()->bezier_list()); const std::list<handle<Duckmatic::Stroke> >& stroke_list(get_work_area()->stroke_list()); Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_work_area()->get_pango_context())); Cairo::RefPtr<Cairo::Context> cr = drawable->create_cairo_context(); cr->save(); cr->set_line_cap(Cairo::LINE_CAP_BUTT); cr->set_line_join(Cairo::LINE_JOIN_MITER); // Render the strokes for(std::list<handle<Duckmatic::Stroke> >::const_iterator iter=stroke_list.begin();iter!=stroke_list.end();++iter) { cr->save(); std::list<synfig::Point>::iterator iter2; for(iter2=(*iter)->stroke_data->begin();iter2!=(*iter)->stroke_data->end();++iter2) { cr->line_to( ((*iter2)[0]-window_start[0])/pw, ((*iter2)[1]-window_start[1])/ph ); } cr->set_line_width(1.0); cr->set_source_rgb( colorconv_synfig2gdk((*iter)->color).get_red_p(), colorconv_synfig2gdk((*iter)->color).get_green_p(), colorconv_synfig2gdk((*iter)->color).get_blue_p() ); cr->stroke(); cr->restore(); } // Render the beziers for(std::list<handle<Duckmatic::Bezier> >::const_iterator iter=bezier_list.begin();iter!=bezier_list.end();++iter) { Point p1((*iter)->p1->get_trans_point()-window_start); Point p2((*iter)->p2->get_trans_point()-window_start); Point c1((*iter)->c1->get_trans_point()-window_start); Point c2((*iter)->c2->get_trans_point()-window_start); p1[0]/=pw;p1[1]/=ph; p2[0]/=pw;p2[1]/=ph; c1[0]/=pw;c1[1]/=ph; c2[0]/=pw;c2[1]/=ph; cr->save(); cr->move_to(p1[0], p1[1]); cr->curve_to(c1[0], c1[1], c2[0], c2[1], p2[0], p2[1]); /* if (solid_lines) { cr->set_source_rgb(0,0,0); // DUCK_COLOR_BEZIER_1 cr->set_line_width(3.0); cr->stroke_preserve(); cr->set_source_rgb(175.0/255.0,175.0/255.0,175.0/255.0); //DUCK_COLOR_BEZIER_2 cr->set_line_width(1.0); cr->stroke(); } else */ { //Solid line background cr->set_line_width(1.0); cr->set_source_rgb(0,0,0); // DUCK_COLOR_BEZIER_1 cr->stroke_preserve(); //Dashes cr->set_source_rgb(175.0/255.0,175.0/255.0,175.0/255.0); //DUCK_COLOR_BEZIER_2 std::valarray<double> dashes(2); dashes[0]=5.0; dashes[1]=5.0; cr->set_dash(dashes, 0); cr->stroke(); } cr->restore(); } const DuckList duck_list(get_work_area()->get_duck_list()); std::list<ScreenDuck> screen_duck_list; const float radius((abs(pw)+abs(ph))*4); etl::handle<Duck> hover_duck(get_work_area()->find_duck(get_work_area()->get_cursor_pos(),radius, get_work_area()->get_type_mask())); // Render the ducks for(std::list<handle<Duck> >::const_iterator iter=duck_list.begin();iter!=duck_list.end();++iter) { // If this type of duck has been masked, then skip it if(!(*iter)->get_type() || (!(get_work_area()->get_type_mask() & (*iter)->get_type()))) continue; Point sub_trans_point((*iter)->get_sub_trans_point()); Point sub_trans_origin((*iter)->get_sub_trans_origin()); if (App::restrict_radius_ducks && (*iter)->is_radius()) { if (sub_trans_point[0] < sub_trans_origin[0]) sub_trans_point[0] = sub_trans_origin[0]; if (sub_trans_point[1] < sub_trans_origin[1]) sub_trans_point[1] = sub_trans_origin[1]; } Point point((*iter)->get_transform_stack().perform(sub_trans_point)); Point origin((*iter)->get_transform_stack().perform(sub_trans_origin)); point[0]=(point[0]-window_start[0])/pw; point[1]=(point[1]-window_start[1])/ph; bool has_connect = (*iter)->get_tangent() || ((*iter)->get_type()&( Duck::TYPE_ANGLE | Duck::TYPE_SKEW | Duck::TYPE_SCALE_X | Duck::TYPE_SCALE_Y )); if((*iter)->get_connect_duck()) { has_connect=true; origin=(*iter)->get_connect_duck()->get_trans_point(); } origin[0]=(origin[0]-window_start[0])/pw; origin[1]=(origin[1]-window_start[1])/ph; bool selected(get_work_area()->duck_is_selected(*iter)); bool hover(*iter==hover_duck || (*iter)->get_hover()); if(get_work_area()->get_selected_value_node()) { synfigapp::ValueDesc value_desc((*iter)->get_value_desc()); if (value_desc.is_valid() && ((value_desc.is_value_node() && get_work_area()->get_selected_value_node() == value_desc.get_value_node()) || (value_desc.parent_is_value_node() && get_work_area()->get_selected_value_node() == value_desc.get_parent_value_node()))) { cr->save(); cr->rectangle( round_to_int(point[0]-5), round_to_int(point[1]-5), 10, 10 ); cr->set_line_width(2.0); cr->set_source_rgb(1, 0, 0); //DUCK_COLOR_SELECTED cr->stroke(); cr->restore(); } } if((*iter)->get_box_duck()) { Point boxpoint((*iter)->get_box_duck()->get_trans_point()); boxpoint[0]=(boxpoint[0]-window_start[0])/pw; boxpoint[1]=(boxpoint[1]-window_start[1])/ph; Point tl(min(point[0],boxpoint[0]),min(point[1],boxpoint[1])); cr->save(); cr->rectangle( round_to_int(tl[0]), round_to_int(tl[1]), round_to_int(abs(boxpoint[0]-point[0])), round_to_int(abs(boxpoint[1]-point[1])) ); // Solid white box cr->set_line_width(1.0); cr->set_source_rgb(1,1,1); //DUCK_COLOR_BOX_1 cr->stroke_preserve(); // Dashes cr->set_source_rgb(0,0,0); //DUCK_COLOR_BOX_2 std::valarray<double> dashes(2); dashes[0]=5.0; dashes[1]=5.0; cr->set_dash(dashes, 0); cr->stroke(); cr->restore(); } if((*iter)->is_axes_tracks()) { Point pos((*iter)->get_point()); Point points[] = { (*iter)->get_sub_trans_origin(), (*iter)->get_sub_trans_point(Point(pos[0],0)), (*iter)->get_sub_trans_point(), (*iter)->get_sub_trans_point(Point(0,pos[1])), (*iter)->get_sub_trans_origin() }; cr->save(); for(int i = 0; i < 5; i++) { Point p((*iter)->get_transform_stack().perform(points[i])); Real x = (p[0]-window_start[0])/pw; Real y = (p[1]-window_start[1])/ph; if (i == 0) cr->move_to(x, y); else cr->line_to(x, y); } // Solid white box cr->set_line_width(1.0); cr->set_source_rgb(1,1,1); //DUCK_COLOR_BOX_1 cr->stroke_preserve(); // Dashes cr->set_source_rgb(0,0,0); //DUCK_COLOR_BOX_2 std::valarray<double> dashes(2); dashes[0]=5.0; dashes[1]=5.0; cr->set_dash(dashes, 0); cr->stroke(); cr->restore(); } ScreenDuck screen_duck; screen_duck.pos=point; screen_duck.selected=selected; screen_duck.hover=hover; screen_duck.has_alternative=(*iter)->get_alternative_value_desc().is_valid(); if(!(*iter)->get_editable(alternative)) screen_duck.color=(DUCK_COLOR_NOT_EDITABLE); else if((*iter)->get_tangent()) if(0){ // Tangents have different color depending on the split state (disabled for now) // // Check if we can reach the canvas and set the time to // evaluate the split value accordingly synfig::Canvas::Handle canvas_h(get_work_area()->get_canvas()); synfig::Time time(canvas_h?canvas_h->get_time():synfig::Time(0)); // Retrieve the split value of the bline point. const synfigapp::ValueDesc& v_d((*iter)->get_value_desc()); synfig::LinkableValueNode::Handle parent; if(v_d.parent_is_linkable_value_node()) { parent=v_d.get_parent_value_node(); bool split; synfig::ValueNode::Handle child(parent->get_link("split")); if(synfig::ValueNode_Animated::Handle::cast_dynamic(child)) { synfig::ValueNode_Animated::Handle animated_child(synfig::ValueNode_Animated::Handle::cast_dynamic(child)); split=animated_child->new_waypoint_at_time(time).get_value(time).get(split); } else if(synfig::ValueNode_Const::Handle::cast_dynamic(child)) { synfig::ValueNode_Const::Handle const_child(synfig::ValueNode_Const::Handle::cast_dynamic(child)); split=(const_child->get_value()).get(split); } screen_duck.color=(split? DUCK_COLOR_TANGENT_2 : DUCK_COLOR_TANGENT_1); } else screen_duck.color=DUCK_COLOR_TANGENT_1; } else { // All tangents are the same color screen_duck.color=((*iter)->get_scalar()<0 ? DUCK_COLOR_TANGENT_1 : DUCK_COLOR_TANGENT_1); } else if((*iter)->get_type()&Duck::TYPE_VERTEX) screen_duck.color=DUCK_COLOR_VERTEX; else if((*iter)->get_type()&Duck::TYPE_RADIUS) screen_duck.color=((*iter)->is_linear() ? DUCK_COLOR_LINEAR : DUCK_COLOR_RADIUS); else if((*iter)->get_type()&Duck::TYPE_WIDTH) screen_duck.color=DUCK_COLOR_WIDTH; else if((*iter)->get_type()&Duck::TYPE_ANGLE) screen_duck.color=(DUCK_COLOR_ANGLE); else if((*iter)->get_type()&Duck::TYPE_WIDTHPOINT_POSITION) screen_duck.color=(DUCK_COLOR_WIDTHPOINT_POSITION); else screen_duck.color=DUCK_COLOR_OTHER; screen_duck_list.push_front(screen_duck); if(has_connect) { cr->save(); cr->move_to(origin[0], origin[1]); cr->line_to(point[0], point[1]); if(solid_lines) { // Outside cr->set_line_width(3.0); cr->set_source_rgb(0,0,0); //DUCK_COLOR_CONNECT_OUTSIDE cr->stroke_preserve(); // Inside cr->set_line_width(1.0); cr->set_source_rgb(159.0/255,239.0/255,239.0/255); //DUCK_COLOR_CONNECT_INSIDE cr->stroke(); } else { // White background cr->set_line_width(1.0); cr->set_source_rgb(0,0,0); //DUCK_COLOR_CONNECT_OUTSIDE cr->stroke_preserve(); // Dashes on top of the background cr->set_source_rgb(159.0/255,239.0/255,239.0/255); //DUCK_COLOR_CONNECT_INSIDE std::valarray<double> dashes(2); dashes[0]=5.0; dashes[1]=5.0; cr->set_dash(dashes, 0); cr->stroke(); } cr->restore(); } if((*iter)->is_radius()) { if (!(*iter)->is_linear()) { const Real mag((point-origin).mag()); cr->save(); cr->arc( origin[0], origin[1], mag, 0, M_PI*2 ); if(solid_lines) { cr->set_line_width(3.0); cr->set_source_rgb(0,0,0); cr->stroke_preserve(); cr->set_source_rgb(175.0/255.0,175.0/255.0,175.0/255.0); } else { cr->set_source_rgb(1.0,1.0,1.0); // Operator difference was added in Cairo 1.9.4 // It currently isn't supported by Cairomm #if CAIRO_VERSION >= 10904 cairo_set_operator(cr->cobj(), CAIRO_OPERATOR_DIFFERENCE); #else // Fallback: set color to black cr->set_source_rgb(0,0,0); #endif } cr->set_line_width(1.0); cr->stroke(); cr->restore(); } if(hover) { Real mag; if ((*iter)->get_exponential()){ mag = log((*iter)->get_point().mag()); } else if (App::restrict_radius_ducks) { Point sub_trans_point((*iter)->get_sub_trans_point()); Point sub_trans_origin((*iter)->get_sub_trans_origin()); if (sub_trans_point[0] < sub_trans_origin[0]) sub_trans_point[0] = sub_trans_origin[0]; if (sub_trans_point[1] < sub_trans_origin[1]) sub_trans_point[1] = sub_trans_origin[1]; Point point((*iter)->get_transform_stack().perform(sub_trans_point)); Point origin((*iter)->get_transform_stack().perform(sub_trans_origin)); mag = (point-origin).mag(); } else mag = ((*iter)->get_trans_point()-(*iter)->get_trans_origin()).mag(); Distance real_mag(mag, Distance::SYSTEM_UNITS); if (!(*iter)->get_exponential()) real_mag.convert(App::distance_system,get_work_area()->get_rend_desc()); cr->save(); layout->set_text(real_mag.get_string()); cr->set_source_rgb(0,0,0); // DUCK_COLOR_WIDTH_TEXT_1 cr->move_to( point[0]+1+6, point[1]+1-8 ); layout->show_in_cairo_context(cr); cr->stroke(); cr->set_source_rgb(1,0,1); // DUCK_COLOR_WIDTH_TEXT_2 cr->move_to( point[0]+6, point[1]-8 ); layout->show_in_cairo_context(cr); cr->stroke(); cr->restore(); } } if((*iter)->get_type()&&Duck::TYPE_WIDTHPOINT_POSITION) { if(hover) { synfig::Canvas::Handle canvas_h(get_work_area()->get_canvas()); synfig::Time time(canvas_h?canvas_h->get_time():synfig::Time(0)); synfigapp::ValueDesc value_desc((*iter)->get_value_desc()); synfig::ValueNode_WPList::Handle wplist=NULL; ValueNode_Composite::Handle wpoint_composite=NULL; Real radius=0.0; Real new_value; Point p(sub_trans_point-sub_trans_origin); if(value_desc.parent_is_value_node()) wplist=synfig::ValueNode_WPList::Handle::cast_dynamic(value_desc.get_parent_value_node()); if(wplist) { bool wplistloop(wplist->get_loop()); synfig::ValueNode_BLine::Handle bline(synfig::ValueNode_BLine::Handle::cast_dynamic(wplist->get_bline())); wpoint_composite=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()); if(bline && wpoint_composite) { bool blineloop(bline->get_loop()); bool homogeneous=false; // Retrieve the homogeneous layer parameter std::set<Node*>::iterator iter; for(iter=wplist->parent_set.begin();iter!=wplist->parent_set.end();++iter) { Layer::Handle layer; layer=Layer::Handle::cast_dynamic(*iter); if(layer && layer->get_name() == "advanced_outline") { homogeneous=layer->get_param("homogeneous").get(bool()); break; } } WidthPoint wp((*wpoint_composite)(time).get(WidthPoint())); if(wplistloop) { // The wplist is looped. This may require a position parameter // outside the range of 0-1, so make sure that the position doesn't // change drastically. // First normalise the current position Real value_old(wp.get_norm_position(wplistloop)); Real value_old_b(wp.get_bound_position(wplistloop)); // If it is homogeneous then convert it to standard value_old=homogeneous?hom_to_std((*bline)(time), value_old, wplistloop, blineloop):value_old; // grab a new position given by duck's position on the bline Real value_new = synfig::find_closest_point((*bline)(time), p , radius, blineloop); // calculate the difference between old and new positions Real difference = fmod( fmod(value_new - value_old, 1.0) + 1.0 , 1.0); //fmod is called twice to avoid negative values if (difference > 0.5) difference=difference-1.0; // calculate a new value for the position new_value=value_old+difference; // restore the homogeneous value if needed new_value = homogeneous?std_to_hom((*bline)(time), new_value, wplistloop, blineloop):new_value; // this is the difference between the new value and the old value inside the boundaries Real bound_diff((wp.get_lower_bound() + new_value*(wp.get_upper_bound()-wp.get_lower_bound()))-value_old_b); // add the new diff to the current value new_value = wp.get_position() + bound_diff; } else { // grab a new position given by duck's position on the bline new_value = synfig::find_closest_point((*bline)(time), p , radius, blineloop); // if it is homogeneous then convert to it new_value=homogeneous?std_to_hom((*bline)(time), new_value, wplistloop, blineloop):new_value; // convert the value inside the boundaries new_value = wp.get_lower_bound()+new_value*(wp.get_upper_bound()-wp.get_lower_bound()); } cr->save(); layout->set_text(strprintf("%2.3f", new_value)); cr->set_source_rgb(0,0,0); // DUCK_COLOR_WIDTH_TEXT_1 cr->move_to( point[0]+1+6, point[1]+1-18 ); layout->show_in_cairo_context(cr); cr->stroke(); cr->set_source_rgb(1,0,1); // DUCK_COLOR_WIDTH_TEXT_2 cr->move_to( point[0]+6, point[1]-18 ); layout->show_in_cairo_context(cr); cr->stroke(); cr->restore(); } } } } } for(;screen_duck_list.size();screen_duck_list.pop_front()) { Gdk::Color color(screen_duck_list.front().color); double radius = 4; double outline = 1; bool duck_alternative = alternative && screen_duck_list.front().has_alternative; // Draw the hovered duck last (on top of everything) if(screen_duck_list.front().hover && !screen_duck_list.back().hover && screen_duck_list.size()>1) { screen_duck_list.push_back(screen_duck_list.front()); continue; } cr->save(); if(!screen_duck_list.front().selected) { color.set_red(color.get_red()*2/3); color.set_green(color.get_green()*2/3); color.set_blue(color.get_blue()*2/3); } if(screen_duck_list.front().hover) { radius += 1; outline += 1; } cr->arc( screen_duck_list.front().pos[0], screen_duck_list.front().pos[1], radius, 0, M_PI*2 ); cr->set_source_rgba( color.get_red_p(), color.get_green_p(), color.get_blue_p(), duck_alternative ? 0.5 : 1.0 ); cr->fill_preserve(); cr->set_line_width(outline); cr->set_source_rgba(0,0,0,1); //DUCK_COLOR_OUTLINE cr->stroke(); cr->restore(); } }
static void draw_text (Cairo::RefPtr<Cairo::Context> cr, int wdh, int hgt) { RefPtr<Pango::Layout> layout = Pango::Layout::create(cr); //layout->set_single_paragraph_mode(true); layout->set_text("MTextTextM\nAbc\nff"); Pango::FontDescription dsc(FONT); layout->set_font_description(dsc); int t_wdh, t_hgt; layout->get_size(t_wdh, t_hgt); double t_sz = (double)dsc.get_size()/t_wdh; double new_sz = wdh * t_sz ; io::cout << "new_sz " << new_sz << io::endl; io::cout << "wdh " << wdh << io::endl; dsc.set_size( int(new_sz*PANGO_SCALE) ); layout->set_font_description(dsc); layout->get_size(t_wdh, t_hgt); io::cout << "t_wdh " << t_wdh/(double)PANGO_SCALE << io::endl; // для наглядности cr->set_line_width(1.0); cr->rectangle(0, 0, wdh, hgt); cr->stroke(); cr->save(); cr->move_to(0, 0); cr->scale( 1.0, hgt / ((double)t_hgt/PANGO_SCALE) ); //cr->scale( wdh / ((double)t_wdh/PANGO_SCALE), hgt / ((double)t_hgt/PANGO_SCALE) ); layout->update_from_cairo_context(cr); pango_cairo_show_layout(cr->cobj(), layout->gobj()); { Pango::Rectangle w_rct, s_rct; int cur_pos; cur_pos = 1; layout->get_cursor_pos(cur_pos, w_rct, s_rct); pango_extents_to_pixels(0, w_rct.gobj()); io::cout << "curs - x, y, hgt " << w_rct.get_x() << " " << w_rct.get_y() << " " << w_rct.get_height() << io::endl; cr->move_to(w_rct.get_x()+5, w_rct.get_y()); cr->line_to(w_rct.get_x()+5, w_rct.get_y()+w_rct.get_height()); cr->stroke(); cur_pos = 11; layout->get_cursor_pos(cur_pos, w_rct, s_rct); pango_extents_to_pixels(0, w_rct.gobj()); io::cout << "curs - x, y, hgt " << w_rct.get_x() << " " << w_rct.get_y() << " " << w_rct.get_height() << io::endl; cr->move_to(w_rct.get_x()+5, w_rct.get_y()); cr->line_to(w_rct.get_x()+5, w_rct.get_y()+w_rct.get_height()); cr->stroke(); } cr->restore(); }
void area___::test__(){ int width, height; width=da_->get_allocation().get_width(); height=da_->get_allocation().get_height(); double m_radius=0.42; double m_line_width=0.05; // scale to unit square and translate (0, 0) to be (0.5, 0.5), i.e. // the center of the window cr_->scale(width, height); cr_->translate(0.5, 0.5); cr_->set_line_width(m_line_width); cr_->save(); cr_->set_source_rgba(0.337, 0.612, 0.117, 0.9); // green cr_->paint(); cr_->restore(); cr_->arc(0, 0, m_radius, 0, 2 * M_PI); cr_->save(); cr_->set_source_rgba(1.0, 1.0, 1.0, 0.8); cr_->fill_preserve(); cr_->restore(); cr_->stroke_preserve(); cr_->clip(); //clock ticks for (int i = 0; i < 12; i++) { double inset = 0.05; cr_->save(); cr_->set_line_cap(Cairo::LINE_CAP_ROUND); if(i % 3 != 0) { inset *= 0.8; cr_->set_line_width(0.03); } cr_->move_to( (m_radius - inset) * cos (i * M_PI / 6), (m_radius - inset) * sin (i * M_PI / 6)); cr_->line_to ( m_radius * cos (i * M_PI / 6), m_radius * sin (i * M_PI / 6)); cr_->stroke(); cr_->restore(); // stack-pen-size } // store the current time time_t rawtime; time(&rawtime); struct tm * timeinfo = localtime (&rawtime); // compute the angles of the indicators of our clock double minutes = timeinfo->tm_min * M_PI / 30; double hours = timeinfo->tm_hour * M_PI / 6; double seconds= timeinfo->tm_sec * M_PI / 30; cout<<timeinfo->tm_min<<","<<timeinfo->tm_hour<<","<<timeinfo->tm_sec<<endl; cr_->save(); cr_->set_line_cap(Cairo::LINE_CAP_ROUND); // draw the seconds hand cr_->save(); cr_->set_line_width(m_line_width / 3); cr_->set_source_rgba(0.7, 0.7, 0.7, 0.8); // gray cr_->move_to(0, 0); cr_->line_to(sin(seconds) * (m_radius * 0.9), -cos(seconds) * (m_radius * 0.9)); cr_->stroke(); cr_->restore(); // draw the minutes hand cr_->set_source_rgba(0.117, 0.337, 0.612, 0.9); // blue cr_->move_to(0, 0); cr_->line_to(sin(minutes + seconds / 60) * (m_radius * 0.8), -cos(minutes + seconds / 60) * (m_radius * 0.8)); cr_->stroke(); // draw the hours hand cr_->set_source_rgba(0.337, 0.612, 0.117, 0.9); // green cr_->move_to(0, 0); cr_->line_to(sin(hours + minutes / 12.0) * (m_radius * 0.5), -cos(hours + minutes / 12.0) * (m_radius * 0.5)); cr_->stroke(); cr_->restore(); // draw a little dot in the middle cr_->arc(0, 0, m_line_width / 3.0, 0, 2 * M_PI); cr_->fill(); }
int render_png(Graph* graph) { int i_side = (graph->side_length - 1) * SPACING + PADDING; //Cairo ImageSurface. This one will be saved afterwards as a png file Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32, i_side + PADDING * 2, i_side + PADDING * 2); //Cairo Context. Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface); cr->save(); // save the state of the context cr->set_source_rgb(1.0, 1.0, 1.0); cr->paint(); // fill image with the color cr->restore(); // color is back to black now //Storing state to start drawing cr->save(); //setting brush color to black cr->set_source_rgb(0.0, 0.0, 0.0); cr->set_line_width(1.0); //drawing lines for (int i = 0; i < graph->side_length; i++) { for (int j = 0; j < graph->side_length; j++) { //for a current node Node* current = graph->matrix.at(i).at(j); //find all friends for (int k = 0; k < current->friends.size(); k++) { pair<int, int> current_friend = *std::next(current->friends.begin(), k); //Move brush to current node cr->move_to(current->coors.first * SPACING + PADDING, current->coors.second * SPACING + PADDING); //Draw a line to current friend cr->line_to(current_friend.first * SPACING + PADDING, current_friend.second * SPACING + PADDING); cr->stroke(); } } } //setting brush color to red cr->set_source_rgb(1.0, 0.0, 0.0); //drawing vertices after lines are drawn for (int i = 0; i < graph->side_length; i++) { for (int j = 0; j < graph->side_length; j++) { Node* current = graph->matrix.at(i).at(j); cr->arc(current->coors.first * SPACING + PADDING, current->coors.second * SPACING + PADDING, 1.0, 0.0, 2.0 * M_PI); cr->stroke(); } } cr->restore(); #ifdef CAIRO_HAS_PNG_FUNCTIONS std::string filename = build_name("result"); surface->write_to_png(filename); std::cout << "Wrote png file \"" << filename << "\"" << std::endl; #else std::cout << "You must compile cairo with PNG support for this example to work." << std::endl; #endif }
bool SamplerWidget::on_expose_event(GdkEventExpose* event) { // This is where we draw on the window Glib::RefPtr<Gdk::Window> window = get_window(); if(window) // Only run if Window does exist { allocation = get_allocation(); int width = allocation.get_width(); int height = allocation.get_height(); //std::cout << "Width: " << width << std::endl; //std::cout << "Height: " << height << std::endl; //std::cout << "Height / 12: " << height /12.0 << std::endl; // coordinates for the center of the window int xc, yc; xc = width / 2; yc = height / 2; Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context(); // clip to the area indicated by the expose event so that we only redraw // the portion of the window that needs to be redrawn //cr -> set_source_rgba(0 , 0, 0 , 1); cr->rectangle(event->area.x, event->area.y, event->area.width, event->area.height); //cr->rectangle(0,0,event->area.x,event->area.y); //cr->stroke_preserve(); cr->clip(); cr -> set_line_join (Cairo::LINE_JOIN_ROUND); cr -> move_to( 7, 7); cr -> line_to( width-7, 7); cr -> line_to( width-7, height-7); cr -> line_to( 7, height-7); cr -> close_path(); // Draw outline shape cr -> set_source_rgb (0.1,0.1,0.1); cr -> fill_preserve(); if (!padOnBool) { cr->set_source_rgba( 0.6, 0.6, 0.6, 0.5); cr->set_line_width ( 10.0); cr->stroke(); } else { cr->set_source_rgba( 1.0,0.4,0.0, 0.8); cr->set_line_width ( 10.4); cr->stroke(); } /* Pan functionality Not yet implemented in sampler. // Draw Pan line: pixel pan = width * pan cr -> set_line_cap (Cairo::LINE_CAP_ROUND); cr -> set_line_width ( 4.8); cr -> set_source_rgba( 1.0,0.8,0.8,0.8); cr -> move_to ( width/2 + ((width*pan)/2) , height - (height*volume) + 20); cr -> line_to ( width/2 + ((width*pan)/2) , height - (height*volume) - 20); cr -> stroke(); */ // Draw Volume line: pixel vol = height * volume cr -> set_line_width ( 5.1); cr -> set_source_rgb( 0.2,0.2,0.2); cr -> move_to ( 10 , (height - ((height-20)*volume))-8 ); cr -> line_to ( width-10, (height - ((height-20)*volume))-8 ); cr -> line_to ( width-10, height-10); cr -> line_to ( 10, height-10); cr -> close_path(); cr -> fill(); // Draw Mode: Loop/Hit if ( !loopSampleBool) { cr->set_line_width ( 2.2); cr->set_source_rgb(0.2,0.2,0.2); cr->move_to(width/5,(height/5)*2); cr->line_to((width/5)*3,(height/5)*2); cr->line_to((width/5)*3,(height/5)*1); cr->line_to((width/5)*4,height/2); // point of arrow cr->line_to((width/5)*3,(height/5)*4); cr->line_to((width/5)*3,(height/5)*3); cr->line_to(width/5,(height/5)*3); cr->close_path(); cr->fill_preserve(); cr->set_source_rgb(0.0,0.9,0.0); cr->stroke(); } else // Loop Sample { cr -> set_source_rgb(0.2,0.2,0.2); cr -> arc_negative (width/2, height/2, ((height + width)/8)-5 , 6.0, 0.6); // inner curve cr -> arc (width/2, height/2, ((height + width)/6)-5 , 0.5, 6.1); // outer curve cr -> line_to ((width-width/3.5) + width/8 , height/2 - height/18 ); // right point of arrow cr -> line_to ( width-width/3.5, height/2 + height/18 ); // point of arrow cr -> line_to ((width-width/3.5) - width/8 , height/2 - height/18 ); // left point of arrow cr -> close_path(); cr -> fill_preserve(); cr -> set_line_width(1.9); cr -> set_source_rgb(0.0,0.9,0.0); cr -> stroke(); } // Impose orange volume line (over SampleLoop/Play) cr -> move_to ( 10 , (height - ((height-20)*volume))-8 ); cr -> line_to ( width-10, (height - ((height-20)*volume))-8 ); cr -> set_source_rgb(1.0,0.4,0.0); cr -> stroke(); // Draw Text in center. Audio Clip name. cr -> set_source_rgb( 1.0,0.4,0.0); cr -> select_font_face ("Impact" , Cairo::FONT_SLANT_NORMAL,Cairo::FONT_WEIGHT_NORMAL); cr -> set_font_size ( 3 + xc/4 ); Cairo::TextExtents extents; std::transform(sampleName.begin(), sampleName.end(), sampleName.begin(), toupper); cr -> get_text_extents(sampleName, extents); cr -> move_to ( xc - extents.width/2 , height/2+height/18); cr -> show_text (sampleName); // sampleName defined in hpp as std::string } return true; }
bool Widget_Curves::on_draw(const Cairo::RefPtr<Cairo::Context> &cr) { const int h(get_height()); const int w(get_width()); get_style_context()->render_background(cr, 0, 0, w, h); if(!time_adjustment_ || !range_adjustment_ || !h || !w) return false; if(!curve_list_.size()) return false; const Real t_begin(time_adjustment_->get_lower()); const Real t_end(time_adjustment_->get_upper()); const Real dt((t_end-t_begin)/w); const Real r_bottom(range_adjustment_->get_value()); const Real r_top(r_bottom+range_adjustment_->get_page_size()); const Real dr((r_top-r_bottom)/h); Real r_max(-100000000); Real r_min(100000000); std::list<CurveStruct>::iterator curve_iter; //Figure out maximum number of channels for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter) { int channels(curve_iter->channels.size()); if(channels>MAX_CHANNELS) { channels=MAX_CHANNELS; synfig::warning("Not allowed more than %d channels! Truncating...", MAX_CHANNELS); } } // and use it when sizing the points vector<Gdk::Point> points[MAX_CHANNELS]; // Draw zero mark cr->set_source_rgb(0.31, 0.31, 0.31); cr->rectangle(0, round_to_int((0-r_bottom)/dr), w, 0); cr->stroke(); // This try to find a valid canvas to show the keyframes of those // valuenodes. If not canvas found then no keyframes marks are shown. synfig::Canvas::Handle canvas=0; for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter) { canvas=curve_iter->value_desc.get_canvas(); if(canvas) break; } if(canvas) { // Draw vertical lines for the keyframes marks. const synfig::KeyframeList& keyframe_list(canvas->keyframe_list()); synfig::KeyframeList::const_iterator iter; for(iter=keyframe_list.begin();iter!=keyframe_list.end();++iter) { if(!iter->get_time().is_valid()) continue; const int x((int)((float)w/(t_end-t_begin)*(iter->get_time()-t_begin))); if(iter->get_time()>=t_begin && iter->get_time()<t_end) { cr->set_source_rgb(0.63, 0.5, 0.5); cr->rectangle(x, 0, 1, h); cr->fill(); } } } // Draw current time cr->set_source_rgb(0, 0, 1); cr->rectangle(round_to_int((time_adjustment_->get_value()-t_begin)/dt), 0, 0, h); cr->stroke(); // Draw curves for the valuenodes stored in the curve list for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter) { Real t; int i; int channels(curve_iter->channels.size()); for(i=0;i<channels;i++) points[i].clear(); for(i=0,t=t_begin;i<w;i++,t+=dt) { for(int chan=0;chan<channels;chan++) { Real x(curve_iter->get_value(chan,t,dt)); r_max=max(r_max,x); r_min=min(r_min,x); points[chan].push_back( Gdk::Point( i, round_to_int( ( x-r_bottom )/dr ) ) ); } } // Draw the graph curves with 0.5 width cr->set_line_width(0.5); for(int chan=0;chan<channels;chan++) { // Draw the curve std::vector<Gdk::Point> &p = points[chan]; for(std::vector<Gdk::Point>::iterator i = p.begin(); i != p.end(); ++i) { if (i == p.begin()) cr->move_to(i->get_x(), i->get_y()); else cr->line_to(i->get_x(), i->get_y()); } const Gdk::Color &color = curve_iter->channels[chan].color; cr->set_source_rgb(color.get_red_p(), color.get_green_p(), color.get_blue_p()); cr->stroke(); Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_pango_context())); layout->set_text(curve_iter->channels[chan].name); cr->move_to(1, points[chan][0].get_y()+1); layout->show_in_cairo_context(cr); } } if(!curve_list_.empty()) { range_adjustment_->set_upper(r_max+range_adjustment_->get_page_size()/2); range_adjustment_->set_lower(r_min-range_adjustment_->get_page_size()/2); } return true; }
void RegionChooser::draw_regions(const Cairo::RefPtr<Cairo::Context>& cr, int clip_low, int clip_high) { const int w = get_width() - 1; Gdk::Cairo::set_source_rgba(cr, black); gig::Region* next_region; int x3 = -1; for (gig::Region* r = regions.first() ; r ; r = next_region) { next_region = regions.next(); if (x3 < 0) { x3 = key_to_x(r->KeyRange.low, w); if (x3 >= clip_high) break; } if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low || r == region || next_region == region) { int x2 = key_to_x(r->KeyRange.high + 1, w); if (x2 >= clip_low) { cr->move_to(x3, 0.5); cr->line_to(x2 + 0.5, 0.5); cr->line_to(x2 + 0.5, h1 - 0.5); cr->line_to(x3, h1 - 0.5); cr->stroke(); Gdk::Cairo::set_source_rgba(cr, region == r ? red : white); cr->rectangle(x3 + 1, 1, x2 - x3 - 1, h1 - 2); cr->fill(); Gdk::Cairo::set_source_rgba(cr, black); } x3 = -1; } } for (gig::Region* r = regions.first() ; r ; r = regions.next()) { int x = key_to_x(r->KeyRange.low, w); if (x < clip_low) continue; if (x >= clip_high) break; cr->move_to(x + 0.5, 1); cr->line_to(x + 0.5, h1 - 1); cr->stroke(); } // if there is no region yet, show the user some hint text that he may // right click on this area to create a new region if (!regions.first()) { Glib::RefPtr<Pango::Context> context = get_pango_context(); Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(context); layout->set_alignment(Pango::ALIGN_CENTER); layout->set_text(Glib::ustring("*** ") + _("Right click here to create a region.") + " ***"); layout->set_width(get_width() * Pango::SCALE); //layout->set_height(get_height() * Pango::SCALE); layout->set_spacing(10); Gdk::Cairo::set_source_rgba(cr, red); // get the text dimensions int text_width, text_height; layout->get_pixel_size(text_width, text_height); cr->move_to(0, (REGION_BLOCK_HEIGHT - text_height) / 2); #if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 16) || GTKMM_MAJOR_VERSION < 2 pango_cairo_show_layout(cr->cobj(), layout->gobj()); #else layout->show_in_cairo_context(cr); #endif } }
bool GHighPass::on_expose_event(GdkEventExpose* event) { // This is where we draw on the window Glib::RefPtr<Gdk::Window> window = get_window(); if(window) // Only run if Window does exist { Gtk::Allocation allocation = get_allocation(); int width = allocation.get_width(); int height = allocation.get_height(); // clip to the area indicated by the expose event so that we only redraw // the portion of the window that needs to be redrawn Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context(); cr->rectangle(event->area.x, event->area.y, event->area.width, event->area.height); cr->clip(); cr->rectangle(event->area.x, event->area.y, event->area.width, event->area.height); setColour(cr, COLOUR_GREY_3 ); cr->fill(); //cout << "HighPass getting state ID " << ID << endl; float cutoffRangeZeroOne = stateStore->effectState.at(ID).values[0]; cutoff = cutoffRangeZeroOne; bool active = stateStore->effectState.at(ID).active; bool globalUnit = stateStore->effectState.at(ID).globalUnit; int x = 0; int y = 0; xSize = 73; ySize = 37; // works but a bit simple cr -> move_to( x , y ); cr -> line_to( x + xSize, y ); cr -> line_to( x + xSize, y + ySize ); cr -> line_to( x , y + ySize ); cr -> close_path(); // Draw outline shape cr -> set_source_rgb (0.1,0.1,0.1); cr -> fill(); // draw "frequency guides" std::valarray< double > dashes(2); dashes[0] = 2.0; dashes[1] = 2.0; cr->set_dash (dashes, 0.0); cr->set_line_width(1.0); cr->set_source_rgb (0.4,0.4,0.4); for ( int i = 0; i < 3; i++ ) { cr->move_to( x + ((xSize / 3.f)*i), y ); cr->line_to( x + ((xSize / 3.f)*i), y + ySize ); } for ( int i = 0; i < 3; i++ ) { cr->move_to( x , y + ((ySize / 3.f)*i) ); cr->line_to( x +xSize, y + ((ySize / 3.f)*i) ); } cr->stroke(); cr->unset_dash(); // move to bottom left, draw line to middle left cr->move_to( x + xSize-2 , y + ySize ); cr->line_to( x + xSize-2 , y + (ySize/2)); int startHorizontalLine = xSize* (cutoff + 0.4); if ( startHorizontalLine > 75 ) startHorizontalLine = 75; cr->line_to( startHorizontalLine, y + (ySize/2) ); // horizontal line to start of curve int xSize1CP1 = xSize* (cutoff +0.1); int xSize1CP2 = xSize* (cutoff +0.08); int xSize1End = xSize* cutoff; if ( xSize1CP1 > 75 ) xSize1CP1 = 75; if ( xSize1CP2 > 75 ) xSize1CP2 = 75; if ( xSize1End > 75 ) xSize1End = 75; cr->curve_to( xSize1CP1, y+(ySize*0.5), // control point 1 xSize1CP2, y+(ySize*0.3), // control point 2 xSize1End, y+(ySize*0.3)); // end of curve 1, start curve 2 int xSize2CP1 = xSize* (cutoff - 0.03); int xSize2CP2 = xSize* (cutoff - 0.08); int xSize2End = xSize* (cutoff - 0.15); if ( xSize2CP1 > 75 ) xSize2CP1 = 75; if ( xSize2CP2 > 75 ) xSize2CP2 = 75; if ( xSize2End > 75 ) xSize2End = 75; cr->curve_to( xSize2CP1, y+(ySize*0.3), // control point 1 xSize2CP2, y+(ySize*0.3), // control point 2 xSize2End, y+(ySize) ); // end of curve on floor if (active) setColour(cr, COLOUR_BLUE_1, 0.2 ); else setColour(cr, COLOUR_GREY_1, 0.2 ); cr->close_path(); cr->fill_preserve(); // stroke cutoff line cr->set_line_width(2.5); if ( active ) setColour(cr, COLOUR_BLUE_1 ); else setColour(cr, COLOUR_GREY_1 ); cr->stroke(); // click center if ( globalUnit ) { if ( active ) setColour(cr, COLOUR_GREEN_1, 0.9 ); else setColour(cr, COLOUR_GREY_1,0.9 ); cr->move_to( xSize * cutoff - 5, ySize*q - 5 ); cr->line_to( xSize * cutoff + 5, ySize*q + 5 ); cr->move_to( xSize * cutoff - 5, ySize*q + 5 ); cr->line_to( xSize * cutoff + 5, ySize*q - 5 ); cr->stroke(); } else { if ( active ) setColour(cr, COLOUR_ORANGE_1, 0.9 ); else setColour(cr, COLOUR_GREY_1, 0.9 ); cr->arc( xSize*cutoff, ySize*q, 7, 0, 6.2830 ); cr->stroke(); } // dials Dial(cr, active, 70, 140, cutoffRangeZeroOne, DIAL_MODE_NORMAL); Dial(cr, active, 150,140, q , DIAL_MODE_NORMAL); // outline setColour(cr, COLOUR_GREY_3 ); cr->rectangle( x, y , xSize, ySize ); cr->set_line_width(3); setColour(cr, COLOUR_GREY_2 ); cr->stroke(); /* if ( state.selected ) { cr->rectangle(0, 0, 74, 216); setColour( cr, COLOUR_PURPLE_1 ); cr->set_line_width(1); cr->stroke(); } */ } return true; }