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);
}
}
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();
}
void cairo::draw_face_edge_sequences( const Cairo::RefPtr<Cairo::Context>& cr, const Geodesics::surface_type::edge_descriptor& edge, const Geodesics& m_geodesics )
{
const auto e0out = Geodesics::edge_handle( edge, m_geodesics.get_surface() );
const auto e0w = m_geodesics.edge_windows( e0out );
const auto e0in = e0out.opposite();
const coord_t e0len = e0out.length();
// draw base
draw_edge_sequences( cr, e0w.first, e0w.second, m_geodesics );
// draw lower left edge
if( ! e0in.second ) return ;
auto e1out = e0in.first.next().opposite();
if( e1out.second )
{
auto e1w = m_geodesics.edge_windows( e1out.first );
const coord_t e1len = e1out.first.length();
cr->save();
cr->rotate( - e0in.first.next_inner_angle() );
cr->translate( e1len, 0. );
cr->rotate( M_PI );
//cr->scale( -1., -1. );
draw_edge_sequences( cr, e1w.first, e1w.second, m_geodesics );
cr->restore();
}
// draw lower right edge
const Geodesics::edge_handle e2in = e0in.first.previous();
const auto e2out = e2in.opposite();
if( ! e2out.second ) return;
auto e2w = m_geodesics.edge_windows( e2out.first );
cr->save();
cr->translate( e0len, 0. );
cr->rotate( e2in.next_inner_angle() );
cr->scale( -1., -1. );
draw_edge_sequences( cr, e2w.first, e2w.second, m_geodesics );
cr->restore();
}
void Window::draw(Cairo::RefPtr<Cairo::Context> ctx)
{
ctx->save();
ctx->set_source_rgb(0.9, 0.9, 0.9);
ctx->paint();
ctx->restore();
ctx->save();
ctx->set_line_width(1.0);
ctx->rectangle(0, 0, width, height);
ctx->stroke();
ctx->restore();
}
bool Canvas::on_expose_event(GdkEventExpose * evt) {
Glib::RefPtr<Gdk::Window> window = get_window();
if (!window) return false; // no window yet?
if (!seen_first_expose_event) {
seen_first_expose_event = true;
main->controlsWindow().starting_position();
}
Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
if (!surface) return true; // Haven't rendered yet? Nothing we can do
if (evt) {
cr->rectangle(evt->area.x, evt->area.y, evt->area.width, evt->area.height);
cr->clip();
}
cr->set_source(surface, 0, 0);
cr->paint();
if (main->dragrect.is_active() && main->dragrect.surface_valid()) {
cr->save();
cr->set_source(main->dragrect.get_surface(), 0, 0);
cr->paint();
cr->restore();
}
if (main->hud_active()) {
Cairo::RefPtr<Cairo::Surface>& sfc = main->get_hud_surface();
if (sfc)
cr->set_source(sfc, 0, 0); // TODO HUD position
cr->paint();
}
return true;
}
bool RegionChooser::on_draw(const Cairo::RefPtr<Cairo::Context>& cr) {
double clipx1, clipx2, clipy1, clipy2;
cr->get_clip_extents(clipx1, clipy1, clipx2, clipy2);
#endif
cr->save();
cr->set_line_width(1);
#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) || GTKMM_MAJOR_VERSION < 2
const Gdk::Color bg = get_style()->get_bg(Gtk::STATE_NORMAL);
#else
const Gdk::RGBA bg = get_style_context()->get_background_color();
#endif
Gdk::Cairo::set_source_rgba(cr, bg);
cr->paint();
if (clipy2 > h1) {
draw_keyboard(cr, clipx1, clipx2);
}
if (clipy1 < h1 && instrument) {
draw_regions(cr, clipx1, clipx2);
}
cr->restore();
return true;
}
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();
}
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();
}
}
void Drawable::draw(const Cairo::RefPtr<Cairo::Context>& context,
ImageBuffer& buff) {
context->save();
// std::cout << getImageName() << std::endl;
auto image = buff.getImage(getImageName(), flipped_, scaleX, scaleY);
// int width = image->get_width();
// int height = image->get_height();
proto::Position pos = getPosition();
int x = c_.scaleWidth(pos.x);
int y = c_.scaleHeight(pos.y);
// Gdk::Cairo::set_source_pixbuf(context, image, pos.x + width / 2,
// pos.y - height / 2);
Gdk::Cairo::set_source_pixbuf(context, image, x, offset_ + y);
context->paint();
// context->set_source_rgb(0.8, 0.0, 0.0);
// context->move_to(pos.x, pos.y);
// context->line_to(pos.x + width / 2, pos.y - height / 2);
// context->line_to(pos.x + width / 2, pos.y + height / 2);
// context->line_to(pos.x - width / 2, pos.y + height / 2);
// context->line_to(pos.x - width / 2, pos.y - height / 2);
// context->line_to(pos.x + width / 2, pos.y - height / 2);
// context->stroke();
context->restore();
}
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;
}
void ItemView::drawReminderIcon(const Cairo::RefPtr<Cairo::Context>& cr, const int width, const int height)
{
cr->save();
//draw reminder icon
cr->set_antialias(Cairo::ANTIALIAS_NONE);
if (data.isReminder())
{
Gtk::Image* image = Resources::res->imgReminderIcon;
if (getColorMode() == COLOR_ALARM)
image = Resources::res->imgReminderOnIcon;
const Glib::RefPtr<Gdk::Pixbuf> icon = image->get_pixbuf();
const int iconLeft = (TIME_WIDTH * 0.5) - (icon->get_width() * 0.5);
const int iconTop = (height - icon->get_height()) - (PADDING * 3);
Gdk::Cairo::set_source_pixbuf(cr, icon, iconLeft, iconTop);
cr->rectangle(iconLeft, iconTop, icon->get_width(), icon->get_height());
cr->fill();
}
cr->restore();
}
void NodeRenderer::label(const Cairo::RefPtr<Cairo::Context>& cr,
std::list<shared_ptr<Label> >& labels,
AssetCache& cache)
{
// nothing to print
if (s->text.str().size() == 0 || s->font_size <= 0)
return;
cr->save();
cr->set_font_size(s->font_size);
cr->set_font_face(cache.getFont(
s->font_family.str(),
s->font_style == Style::STYLE_ITALIC ? Cairo::FONT_SLANT_ITALIC : Cairo::FONT_SLANT_NORMAL,
s->font_weight == Style::WEIGHT_BOLD ? Cairo::FONT_WEIGHT_BOLD : Cairo::FONT_WEIGHT_NORMAL
));
Cairo::TextExtents textSize;
cr->get_text_extents(s->text.str(), textSize);
addLabel(labels, location + FloatPoint(0.0, s->text_offset), textSize);
cr->restore();
}
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();
}
}
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();
}
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();
}
}
void renderLabels(const char* path)
{
BOOST_TEST_MESSAGE("Render: " << path);
Cairo::RefPtr<Cairo::Surface> surface = Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32,
META_TILE_SIZE * TILE_SIZE, META_TILE_SIZE * TILE_SIZE);
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0);
cr->save();
cr->set_source_rgba(1.0, 1.0, 1.0, 1.0);
cr->paint();
cr->restore();
std::vector<std::pair<string, FloatPoint>> toPlace;
toPlace.push_back(std::pair<string, FloatPoint>("Karlsruhe", FloatPoint(40, 200)));
toPlace.push_back(std::pair<string, FloatPoint>("Mannheim", FloatPoint(400, 200)));
toPlace.push_back(std::pair<string, FloatPoint>("Stuttgard", FloatPoint(200, 260)));
toPlace.push_back(std::pair<string, FloatPoint>("München", FloatPoint(380, 660)));
toPlace.push_back(std::pair<string, FloatPoint>("Pforzheim", FloatPoint(200, 600)));
toPlace.push_back(std::pair<string, FloatPoint>("Wien", FloatPoint(240, 680)));
toPlace.push_back(std::pair<string, FloatPoint>("Paris", FloatPoint(40, 880)));
toPlace.push_back(std::pair<string, FloatPoint>("Rom", FloatPoint(-40, 880)));
toPlace.push_back(std::pair<string, FloatPoint>("Nothing", FloatPoint(400, 760)));
toPlace.push_back(std::pair<string, FloatPoint>("To See", FloatPoint(720, 880)));
toPlace.push_back(std::pair<string, FloatPoint>("Here", FloatPoint(720, 560)));
toPlace.push_back(std::pair<string, FloatPoint>("Bielefeld", FloatPoint(420, 840)));
renderer->renderLabels(cr, toPlace);
BOOST_TEST_MESSAGE("Writing.");
surface->flush();
surface->write_to_png(path);
}
void CairoPlugin::init()
{
int height, width;
preferredSize(width, height);
m_img = Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32, width, height);
m_store = Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32, width, height);
m_ctx = Cairo::Context::create(m_img);
Cairo::RefPtr < Cairo::Context > ctx = Cairo::Context::create(m_store);
ctx->save();
ctx->set_source_rgb(1.0, 1.0, 1.0);
ctx->set_operator(Cairo::OPERATOR_SOURCE);
ctx->paint();
ctx->set_operator(Cairo::OPERATOR_OVER);
ctx->restore();
m_ctx->save();
m_ctx->set_source_rgb(1.0, 1.0, 1.0);
m_ctx->set_operator(Cairo::OPERATOR_SOURCE);
m_ctx->paint();
m_ctx->set_operator(Cairo::OPERATOR_OVER);
m_ctx->restore();
m_init = false;
m_need = true;
}
void Format7DrawingArea::DrawDisabledText(Cairo::RefPtr<Cairo::Context> refCairo)
{
refCairo->save();
// Set the font parameters
refCairo->select_font_face(
"monospace",
Cairo::FONT_SLANT_NORMAL,
Cairo::FONT_WEIGHT_BOLD );
refCairo->set_font_size( 10 );
// Set draw color to black
refCairo->set_source_rgb(0.0, 0.0, 0.0);
// Print current cursor position
char cursorPosition[128];
sprintf(
cursorPosition,
"Custom Image is not supported by this camera.");
// Get width / height of widget
int width;
int height;
get_window()->get_size( width, height );
Cairo::TextExtents textExtents;
refCairo->get_text_extents( cursorPosition, textExtents );
refCairo->move_to(
(width/2) - (textExtents.width/2),
(height/2) + textExtents.height + (textExtents.height/2));
refCairo->show_text( cursorPosition );
refCairo->restore();
}
void NodeRenderer::icon(const Cairo::RefPtr<Cairo::Context>& cr, AssetCache& cache)
{
// path to icon not set
if (s->icon_image.str().size() == 0 || s->icon_width == 0.0 || s->icon_height == 0.0)
return;
cr->save();
Cairo::RefPtr<Cairo::ImageSurface> image = cache.getImage(s->icon_image.str());
double width = s->icon_width < 0 ? image->get_width() : s->icon_width;
double height = s->icon_height < 0 ? image->get_height() : s->icon_height;
double x0 = floor(location.x - width/2.0);
double y0 = floor(location.y - height/2.0);
cr->translate(x0, y0);
cr->scale(width / image->get_width(),
height / image->get_height());
cr->set_source(image, 0, 0);
if (s->icon_opacity < 1.0)
cr->paint_with_alpha(s->icon_opacity);
else
cr->paint();
cr->restore();
}
bool on_expose_event(GdkEventExpose* ev) {
Glib::RefPtr< Gdk::Window > window = get_window();
if (window) {
Cairo::RefPtr< Cairo::Context > ctx = window->create_cairo_context();
Gtk::Allocation alloc = get_allocation();
const int height = alloc.get_height();
const int width = alloc.get_width();
ctx->scale(width, height); //escala para que ocupe siempre toda la pantalla. Notar que es ancho y después alto.
ctx->set_line_width(ANCHO_LINEA);
// contorno
ctx->move_to(0.0, 1.0); // muevo hacia el punto inicial, que arbitrariamente elegí que fuera el de la izquierda abajo
ctx->line_to(0.0, 0.0); // línea hacia el punto de arriba a la izquierda
ctx->line_to(1.0, 0.0); // línea hacia el punto de arriba a la derecha
ctx->line_to(1.0, 1.0); // línea hacia el punto de abajo a la derecha
ctx->close_path(); // cierro el camino
ctx->save(); // salvo porque voy a cambiar el color
ctx->set_source_rgb(1.0, 1.0, 1.0); // seteo el color al blanco
ctx->fill_preserve(); // relleno todo el cuadrado, preservando el camino para dibujar el contorno
ctx->restore();
ctx->stroke(); // pinto el camino en negro
// triángulo azul de abajo
ctx->move_to(0.0, 1.0); // muevo hacia el punto inicial, que arbitrariamente elegí que fuera el de la izquierda
ctx->line_to(0.5, 0.5); // línea hacia el punto del medio
ctx->line_to(1.0, 1.0); // línea hacia el punto de abajo a la derecha
ctx->close_path(); // cierro el camino
ctx->save(); // salvo porque voy a cambiar el color
ctx->set_source_rgb(0.0, 0.0, 1.0); // seteo el color al azul
ctx->fill_preserve(); // relleno todo triángulo, preservando el camino para dibujar el contorno
ctx->restore();
ctx->stroke(); // pinto el camino en negro
// triángulo azul de arriba
ctx->move_to(0.0, 0.0); // muevo hacia el punto inicial, que arbitrariamente elegí que fuera el de la izquierda
ctx->line_to(0.5, 0.5); // línea hacia el punto del medio
ctx->line_to(1.0, 0.0); // línea hacia el punto de arriba a la derecha
ctx->close_path(); // cierro el camino
ctx->save(); // salvo porque voy a cambiar el color
ctx->set_source_rgb(0.0, 0.0, 1.0); // seteo el color al azul
ctx->fill_preserve(); // relleno todo triángulo, preservando el camino para dibujar el contorno
ctx->restore();
ctx->stroke(); // pinto el camino en negro
}
return true;
}
int main() {
#ifdef CAIRO_HAS_PDF_SURFACE
std::string filename = "image.pdf";
int width = 600;
int height = 400;
Cairo::RefPtr<Cairo::PdfSurface> surface = Cairo::PdfSurface::create(
filename, width, height);
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);
cr->save(); // save the state of the context
cr->set_source_rgb(0.86, 0.85, 0.47);
cr->paint(); // fill image with the color
cr->restore(); // color is back to black now
cr->save();
// draw a border around the image
cr->set_line_width(20.0); // make the line wider
cr->rectangle(0.0, 0.0, cairo_image_surface_get_width(surface->cobj()),
height);
cr->stroke();
cr->set_source_rgba(0.0, 0.0, 0.0, 0.7);
// draw a circle in the center of the image
cr->arc(width / 2.0, height / 2.0, height / 4.0, 0.0, 2.0 * M_PI);
cr->stroke();
// draw a diagonal line
cr->move_to(width / 4.0, height / 4.0);
cr->line_to(width * 3.0 / 4.0, height * 3.0 / 4.0);
cr->stroke();
cr->restore();
cr->show_page();
std::cout << "Wrote PDF file \"" << filename << "\"" << std::endl;
return 0;
#else
std::cout << "You must compile cairo with PDF support for this example to work."
<< std::endl;
return 1;
#endif
}
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();
}
void
Renderer_BBox::render_vfunc(
const Glib::RefPtr<Gdk::Window>& drawable,
const Gdk::Rectangle& /*expose_area*/
)
{
assert(get_work_area());
if(!get_work_area())
return;
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_bbox().get_min());
const synfig::Point drag_point(get_bbox().get_max());
if(get_bbox().area()<10000000000000000.0 && get_bbox().area()>0.00000000000000001)
{
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->save();
cr->set_line_cap(Cairo::LINE_CAP_BUTT);
cr->set_line_join(Cairo::LINE_JOIN_MITER);
cr->set_line_width(1.0);
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->rectangle(
int(tl[0])+0.5,
int(tl[1])+0.5,
int(br[0]-tl[0]+1),
int(br[1]-tl[1]+1)
);
cr->stroke();
cr->restore();
}
}
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
}
int main()
{
Cairo::RefPtr<Cairo::ImageSurface> surface =
Cairo::ImageSurface::create(Cairo::FORMAT_ARGB32, 600, 400);
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);
cr->save(); // save the state of the context
cr->set_source_rgb(0.86, 0.85, 0.47);
cr->paint(); // fill image with the color
cr->restore(); // color is back to black now
cr->save();
// draw a border around the image
cr->set_line_width(20.0); // make the line wider
cr->rectangle(0.0, 0.0, surface->get_width(), surface->get_height());
cr->stroke();
cr->set_source_rgba(0.0, 0.0, 0.0, 0.7);
// draw a circle in the center of the image
cr->arc(surface->get_width() / 2.0, surface->get_height() / 2.0,
surface->get_height() / 4.0, 0.0, 2.0 * M_PI);
cr->stroke();
// draw a diagonal line
cr->move_to(surface->get_width() / 4.0, surface->get_height() / 4.0);
cr->line_to(surface->get_width() * 3.0 / 4.0,
surface->get_height() * 3.0 / 4.0);
cr->stroke();
cr->restore();
#ifdef CAIRO_HAS_PNG_FUNCTIONS
std::string filename = "image.png";
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
}
void Format7DrawingArea::DrawImageDimensionsText(
Cairo::RefPtr<Cairo::Context> refCairo,
unsigned int left, unsigned int top, unsigned int width, unsigned int height )
{
refCairo->save();
// Set the font parameters
refCairo->select_font_face(
"monospace",
Cairo::FONT_SLANT_NORMAL,
Cairo::FONT_WEIGHT_BOLD );
refCairo->set_font_size( 10 );
// Set draw color to black
refCairo->set_source_rgb(0.0, 0.0, 0.0);
// Get width / height of widget
int widgetWidth = 0;
int widgetHeight = 0;
get_window()->get_size( widgetWidth, widgetHeight );
// Create text for image offset
char imageOffsets[128];
sprintf(
imageOffsets,
"Start: (%d,%d) End: (%d,%d)",
left,
top,
left + width,
top + height );
Cairo::TextExtents offsetExtents;
refCairo->get_text_extents(imageOffsets, offsetExtents);
// Draw the offset text
refCairo->move_to(
(widgetWidth/2) - (offsetExtents.width/2),
(widgetHeight/2) - offsetExtents.height - (offsetExtents.height/2));
refCairo->show_text( imageOffsets );
// Create text for image dimensions
char imageDimensions[128];
sprintf(
imageDimensions,
"Dimensions: %d x %d",
width,
height);
Cairo::TextExtents dimensionsExtents;
refCairo->get_text_extents(imageDimensions, dimensionsExtents);
// Draw the dimensions text
refCairo->move_to(
(widgetWidth/2) - (dimensionsExtents.width/2),
(widgetHeight/2) + dimensionsExtents.height + (dimensionsExtents.height/2));
refCairo->show_text( imageDimensions );
refCairo->restore();
}
void DependencyArrow::draw(const Cairo::RefPtr<Cairo::Context>& context) const
{
// the way to compute the (tcx, tcy) single control point of the
// quadratic
double dX = mControlPoint.getX() - mOrigin->getX();
double dY = mControlPoint.getY() - mOrigin->getY();
double d1 = std::sqrt(dX * dX + dY * dY);
double d = d1;
dX = mDestination->getX() - mControlPoint.getX();
dY = mDestination->getY() - mControlPoint.getY();
d += std::sqrt(dX * dX + dY * dY);
double t = d1/d;
double t1 = 1.0 - t;
double tSq = t * t;
double denom = 2.0 * t * t1;
double tcx = (mControlPoint.getX() - t1 * t1 * mOrigin->getX() -
tSq * mDestination->getX()) / denom;
double tcy = (mControlPoint.getY() - t1 * t1 * mOrigin->getY() -
tSq * mDestination->getY()) / denom;
// from the single point of the quadratic to the both of the cubic
double tcxq1 = mOrigin->getX() + 2. * (tcx - mOrigin->getX()) / 3.;
double tcyq1 = mOrigin->getY() + 2. * (tcy - mOrigin->getY()) / 3.;
double tcxq2 = mDestination->getX() +
2. * (tcx - mDestination->getX()) / 3.;
double tcyq2 = mDestination->getY() +
2. * (tcy - mDestination->getY()) / 3.;
// and now to draw,
std::valarray< double > dashes(2);
double angle = atan2 (mDestination->getY() - tcyq2,
mDestination->getX() - tcxq2) + M_PI;
double x1 = mDestination->getX() + 9 * std::cos(angle - 0.35);
double y1 = mDestination->getY() + 9 * std::sin(angle - 0.35);
double x2 = mDestination->getX() + 9 * std::cos(angle + 0.35);
double y2 = mDestination->getY() + 9 * std::sin(angle + 0.35);
dashes[0] = 8.0;
dashes[1] = 3.0;
context->save();
context->set_line_width(1);
context->move_to(mDestination->getX(), mDestination->getY());
context->line_to(x1,y1);
context->line_to(x2,y2);
context->line_to(mDestination->getX(), mDestination->getY());
context->fill();
context->set_dash(dashes,0.);
context->move_to(mOrigin->getX(), mOrigin->getY());
context->curve_to(tcxq1, tcyq1, tcxq2, tcyq2, mDestination->getX(),
mDestination->getY());
context->stroke();
context->restore();
}
void Anchor::draw(const Cairo::RefPtr<Cairo::Context>& context) const
{
context->save();
context->move_to(mX,mY);
context->set_source_rgb(0., 1., 0.);
context->rectangle(mX, mY, ANCHOR_WIDTH, ANCHOR_HEIGHT);
context->fill();
context->restore();
}
void ICLayerLineString::draw(Cairo::RefPtr<Cairo::Context> cr, double scale,
std::set<int> select, bool DisplayID, double Alpha)
{
std::map<int, ICLayerObject*>::iterator it;
for (it = m_ICLayerObject.begin(); it != m_ICLayerObject.end(); it++)
{
if ((*it).second->selfIdExisting())
{
bool isSelect = false;
if (!select.empty())
{
std::set<int>::iterator it2;
it2 = select.find((*it).first);
if (it2 != select.end() && (*it2) == (*it).first)
{
drawLine(cr, (*it).second->getOGRGeometryObject(), scale, true);
isSelect = true;
} else
drawLine(cr, (*it).second->getOGRGeometryObject(), scale, false);
} else
drawLine(cr, (*it).second->getOGRGeometryObject(), scale, false);
if (DisplayID)
{
Cairo::TextExtents extents;
std::stringstream str;
str << (*it).first;
std::string text = str.str();
cr->select_font_face("Bitstream Vera Sans, Arial", Cairo::FONT_SLANT_NORMAL,
Cairo::FONT_WEIGHT_NORMAL);
cr->set_font_size(12 / scale);
Cairo::FontOptions font_options;
font_options.set_hint_style(Cairo::HINT_STYLE_NONE);
font_options.set_hint_metrics(Cairo::HINT_METRICS_OFF);
font_options.set_antialias(Cairo::ANTIALIAS_GRAY);
cr->set_font_options(font_options);
cr->save();
cr->get_text_extents(text, extents);
cr->move_to((*it).second->getCentroid().first,
(*it).second->getCentroid().second);
cr->scale(1, -1);
if (isSelect)
cr->set_source_rgba(0, 0, 0, Alpha);
cr->show_text(text);
cr->stroke();
cr->restore();
}
}
}
}
void enigma_rotor_window::draw_wheel_pos(Cairo::RefPtr<Cairo::Context> cr, gunichar new_pos)
{
wheel_pos = new_pos;
const char *trans_2 = "00000000011111111112222222";
const char *trans_1 = "12345678901234567890123456";
int win_size = ((int)(padded_size)) - 1;
cr->save();
// Draw background of rotor window as a rectangle filled with the rotor background colour
cr->set_source_rgb(rotor_r, rotor_g, rotor_b);
cr->rectangle(x - win_size / 2, y - win_size / 2, win_size, win_size); // Set path
cr->fill_preserve(); // Fill everyting inside the path and preserve the path
// Draw black border around the path, i.e. the rectangle that represents the rotor window
cr->set_line_width(1.0);
cr->set_source_rgb(BLACK);
cr->stroke();
cr->restore();
cr->save();
// Set colour in which to draw the rotor position
if (!is_greek)
cr->set_source_rgb(BLACK); // Default is black
else
cr->set_source_rgb(RED); // The greek wheel on M4 has red markings
if (!is_numeric)
{
// rotor position is displayed as character A-Z
print_char(cr, x, y, new_pos, font_size_char);
}
else
{
// rotor position is displayed as a number 01, 02, ..., 26
print_char(cr, x - char_width_numeric / 2, y, trans_2[new_pos - 'A'], font_size_numeric);
print_char(cr, x + char_width_numeric / 2, y, trans_1[new_pos - 'A'], font_size_numeric);
}
cr->restore();
}