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();
}
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 NodeRenderer::shield(const Cairo::RefPtr<Cairo::Context>& cr,
std::list<shared_ptr<Shield> >& shields,
AssetCache& cache)
{
// nothing to print
if (s->shield_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->shield_text.str(), textSize);
addShield(shields, location, textSize);
cr->restore();
}
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;
}
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
}
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
}
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();
}
}
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();
}
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 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 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 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();
}
}
}
}
/** Draw scale box.
* Draws a circle with a radius of 1m around the robot.
* @param window Gdk window
* @param cr Cairo context to draw to. It is assumed that possible transformations
* have been setup before.
*/
void
LaserDrawingArea::draw_scalebox(Glib::RefPtr<Gdk::Window> &window,
const Cairo::RefPtr<Cairo::Context> &cr)
{
cr->save();
cr->set_source_rgba(0, 0, 0.8, 0.2);
cr->arc(0, 0, 1.0, 0, 2 * M_PI);
cr->stroke();
cr->restore();
}
// helper function to draw an image
void Draw::draw_img(const Cairo::RefPtr<Cairo::Context>& cr, const Glib::RefPtr<Gdk::Pixbuf>& img,
const double translate_x, const double translate_y, const double scale_x, const double scale_y)
{
cr->save();
cr->translate(translate_x, translate_y);
cr->scale(scale_x, scale_y);
Gdk::Cairo::set_source_pixbuf(cr, img);
cr->paint();
cr->restore();
}
void CardWidget::Draw(Cairo::RefPtr<Cairo::Context> cr, int x, int y)
{
bool highlight = highlightOnHover && isMouseInArea;
Cairo::RefPtr<Cairo::ImageSurface> image = PrefSlots::getImagesStorage().GetCardImage(card);
cr->save();
cr->translate(x, y);
cr->scale(1.0 * width / image->get_width(), 1.0 * height / image->get_height());
cr->rectangle(0, 0, image->get_width(), image->get_height());
cr->clip();
if( highlight ) {
cr->save();
cr->set_source_rgb(0.1, 0.8, 0.1);
cr->paint();
cr->restore();
}
cr->set_source(image, 0, 0);
cr->paint_with_alpha( highlight ? 0.7 : 1.0 );
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();
}
void clear()
{
cr->save();
cr->set_operator(Cairo::OPERATOR_CLEAR);
cr->set_source_rgba(1.0, 1.0, 1.0, 1.0);
cr->paint();
cr->restore();
}
virtual bool 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();
if(!drawing)
{
sort(objects.begin(), objects.end(), PlaneObjectColection::compare);
}
drawing=1;
unsigned int i;
unsigned int j;
cr->set_line_width(2);
Coordenate temp;
for(i=0; i<objects.size(); i++)
{
if(objects[i].get_num_nodos()<2 || objects[i].z>=camera.z) continue;
cr->save();
temp=get_draw_location(objects[i].get_nodo_position(0), width, height, 26.5/M_PI);
cr->line_to(temp.x, temp.y);
cr->move_to(temp.x, temp.y);
for(j=1; j<objects[i].get_num_nodos(); j++)
{
temp=get_draw_location(objects[i].get_nodo_position(j), width, height, 26.5/M_PI);
cr->line_to(temp.x, temp.y);
}
temp=get_draw_location(objects[i].get_nodo_position(0), width, height, 26.5/M_PI);
cr->line_to(temp.x, temp.y);
temp=get_draw_location(objects[i].get_nodo_position(1), width, height, 26.5/M_PI);
cr->line_to(temp.x, temp.y);
cr->set_source_rgba(double(objects[i].fill_color.red)/255, double(objects[i].fill_color.green)/255, double(objects[i].fill_color.blue)/255, double(objects[i].fill_color.alpha)/255);
cr->fill_preserve();
cr->set_source_rgba(double(objects[i].line_color.red)/255, double(objects[i].line_color.green)/255, double(objects[i].line_color.blue)/255, double(objects[i].line_color.alpha)/255);
cr->stroke();
cr->restore();
}
return 1;
}
void HelloWorld::update_canvas(Cairo::RefPtr<Cairo::Context> &context) {
alc_allocation = ara_canvas.get_allocation();
int width = alc_allocation.get_width();
int height = alc_allocation.get_height();
cout << "width: " << width << ", height: " << height << endl;
context->save();
context->set_source_rgba(0, level, 0, 1);
context->scale(width, height);
context->rectangle(0, 0, 1, 1);
context->fill();
context->restore();
}
void thin_rotor::draw(Cairo::RefPtr<Cairo::Context> cr)
{
cr->save();
// Draw rotor window rectangle
cr->set_source_rgb(red, green, blue);
cr->set_line_width(1.0);
cr->rectangle(x - width / 2, y - height / 2, width, height);
cr->fill();
cr->stroke();
cr->restore();
cr->save();
// Draw rotor position
cr->set_source_rgb(BLACK);
print_char(cr, x, y, wheel_pos, width - 2);
cr->restore();
}
void cairo::draw_centered_text( const Cairo::RefPtr<Cairo::Context>& cr, const std::string& utf8, const cairo_coord_t& pos )
{
cr->save();
Cairo::TextExtents texts;
cr->get_text_extents( utf8, texts );
cr->move_to( pos[0] - texts.width/2. - texts.x_bearing , pos[1] );
cr->show_text( utf8 );
cr->restore();
}
void ActivityDrawingArea::drawText() {
// 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();
cr->set_line_width(2.0);
this->setSourceRGB(cr, currentColourScheme.getAxisColour());
cr->set_font_size(18);
cr->move_to(0, 20);
cr->restore();
}
void PlotContour::draw_plot(const Cairo::RefPtr<Cairo::Context> &cr, const int width, const int height) {
if (!shown)
return;
draw_plot_init(cr, width, height);
change_plstream_color(pls, axes_color);
//plot the box with its axes
pls->adv(0);
pls->vpor(0.1, 0.9, 0.1, 0.9);
pls->wind(plotted_range_x[0], plotted_range_x[1],
plotted_range_y[0], plotted_range_y[1]);
pls->box( "bcnst", 0.0, 0, "bcnstv", 0.0, 0 );
//set the label color
change_plstream_color(pls, titles_color);
pls->lab(axis_title_x.c_str(), axis_title_y.c_str(), plot_title.c_str());
//thinks to set before drawing:
// 1) edge_color
// 2) edge_width
change_plstream_color(pls, edge_color);
pls->width(edge_width);
auto data = dynamic_cast<PlotDataSurface*>(plot_data[0]);
std::vector<double> x = data->get_vector_x();
std::vector<double> y = data->get_vector_y();
PLcGrid cgrid;
cgrid.xg = &x[0];
cgrid.yg = &y[0];
cgrid.nx = x.size();
cgrid.ny = y.size();
double **z = data->get_array2d_z();
pls->setcontlabelparam(0.01, 0.6, 0.1, is_showing_labels());
pls->cont(z, x.size(), y.size(), 1, x.size(), 1, y.size(), &clevels[0], nlevels, PLCALLBACK::tr1, (void *) &cgrid);
free_array2d((void **) z, x.size());
cr->restore();
coordinate_transform_plplot_to_cairo(plotted_range_x[0], plotted_range_y[0],
cairo_range_x[0], cairo_range_y[0]);
coordinate_transform_plplot_to_cairo(plotted_range_x[1], plotted_range_y[1],
cairo_range_x[1], cairo_range_y[1]);
}
/**
* Makes the window draw itself.
*/
void Window::redraw()
{
LOG(kLogDebug, "Redrawing window %p", this);
needsRedraw = false;
Cairo::RefPtr<Cairo::Context> context = Cairo::Context::create(store);
context->save();
context->set_operator(Cairo::OPERATOR_CLEAR);
context->paint();
context->restore();
draw(context);
loadTexture();
}
void Rect::draw(Cairo::RefPtr<Cairo::Context> cr, int x, int y)
{
//draw a Rectangle centered on (x, y)
int w_2 = width/2;
int h_2 = height/2;
cr->save();
cr->rectangle(x - w_2, y - h_2, width, height);
cr->set_source_rgba(color->getRed(), color->getGreen(), color->getBlue(), 1.0); //opaque
cr->fill();
cr->restore();
}
void ItemView::drawButtons(const Cairo::RefPtr<Cairo::Context>& cr, const int width, const int height)
{
cr->save();
cr->set_antialias(Cairo::ANTIALIAS_NONE);
if (isSelected())
{
drawButton(cr, Resources::res->imgBtnDelete, rectBtnDelete);
drawButton(cr, Resources::res->imgBtnEdit, rectBtnEdit);
}
cr->restore();
}
//! Only renders the shield background, the text is rendered in renderLabels
void Renderer::renderShields(const Cairo::RefPtr<Cairo::Context>& cr,
std::vector<shared_ptr<Shield> >& shields) const
{
cr->save();
cr->set_line_join(Cairo::LINE_JOIN_ROUND);
for (auto& shield : shields)
{
const Style* s = shield->style;
double x0, y0, height, width;
double border = ceil(s->shield_frame_width/2.0 + s->shield_casing_width);
x0 = shield->shield.minX + border;
y0 = shield->shield.minY + border;
width = shield->shield.getWidth() - 2*border;
height = shield->shield.getHeight() - 2*border;
if ((int) s->shield_frame_width % 2 == 1) {
x0 -= 0.5;
y0 -= 0.5;
}
if (s->shield_shape == Style::ShieldShape::ROUNDED) {
cr->arc(x0 + height/2.0, y0 + height/2.0,
height/2.0, boost::math::constants::pi<double>()/2.0, 3.0*boost::math::constants::pi<double>()/2.0);
cr->arc(x0 + width - height/2.0, y0 + height/2.0,
height/2.0, 3.0*boost::math::constants::pi<double>()/2.0, boost::math::constants::pi<double>()/2.0);
cr->close_path();
} else
cr->rectangle(x0, y0, width, height);
// shield casing
if (s->shield_casing_width > 0) {
cr->set_source_color(s->shield_casing_color),
cr->set_line_width(s->shield_frame_width + s->shield_casing_width * 2.0);
cr->stroke_preserve();
}
// shield background
cr->set_source_color(s->shield_color),
cr->fill_preserve();
// shield frame
cr->set_source_color(s->shield_frame_color),
cr->set_line_width(s->shield_frame_width);
cr->stroke();
}
cr->restore();
}
void OutputFile::draw_edges(Cairo::RefPtr<Cairo::Context> &cr,
vector<straightener::Route*> const & es, double const xmin, double const ymin) {
cr->save();
// background
cr->set_source_rgba(0,0,1,0.5);
for (unsigned i=0;i<es.size();i++) {
const straightener::Route* r=es[i];
cr->move_to(r->xs[0]-xmin,r->ys[0]-ymin);
for (unsigned j=1;j<r->n;j++) {
cr->line_to(r->xs[j]-xmin,r->ys[j]-ymin);
}
cr->stroke();
}
cr->restore();
}
