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);
}
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
}
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;
}
int main(int, char**) {
Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create(
Cairo::FORMAT_ARGB32, WIDTH, HEIGHT);
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);
// fill background in white
cr->set_source_rgb(1.0, 1.0, 1.0);
cr->paint();
// draw a little dot at the point where text will be drawn
cr->arc(TEXT_ORIGIN_X, TEXT_ORIGIN_Y, FONT_SIZE / 4.0, 0, 2 * M_PI);
cr->set_source_rgba(0.0, 1.0, 0.0, 0.5);
cr->fill();
// draw the text
cr->move_to(TEXT_ORIGIN_X, TEXT_ORIGIN_Y);
cr->set_source_rgb(0.8, 0.2, 0.2);
Cairo::RefPtr<Cairo::ToyFontFace> font = Cairo::ToyFontFace::create(
"Bitstream Charter", Cairo::FONT_SLANT_ITALIC,
Cairo::FONT_WEIGHT_BOLD);
cr->set_font_face(font);
cr->set_font_size(FONT_SIZE);
cr->show_text("cairomm!");
surface->write_to_png("toy-text.png");
return 0;
}
bool Window::OnDraw(const Cairo::RefPtr<Cairo::Context> & cr)
{
cr->set_source_rgba(0.337, 0.612, 0.117, 0.9);
cr->paint();
return false;
}
void renderLabels(Cairo::RefPtr<Cairo::Context> cr, std::vector<std::pair<string, FloatPoint> >& toPlace) {
cr->save();
cr->set_source_rgba(0.0, 0.0, 0.0, 0.5);
Cairo::RefPtr<Cairo::ToyFontFace> font = Cairo::ToyFontFace::create(DEFAULT_FONT, Cairo::FONT_SLANT_NORMAL, Cairo::FONT_WEIGHT_NORMAL);
cr->set_font_face(font);
cr->set_font_size(120.0);
cr->set_line_width(2.0);
Cairo::TextExtents textSize;
std::list<shared_ptr<Label> > labels;
int i = 0;
std::vector<shared_ptr<Style>> styles;
for (auto& pair : toPlace)
{
string& text = pair.first;
cr->get_text_extents(text, textSize);
shared_ptr<Style> s = boost::make_shared<Style>();
s->text = text;
styles.push_back(s);
FloatPoint center = pair.second + FloatPoint(textSize.width/2.0, textSize.height/2.0);
FloatRect owner = FloatRect(center.x, center.y, center.x, center.y);
FloatPoint origin = pair.second - FloatPoint(textSize.x_bearing, textSize.y_bearing);
shared_ptr<Label> l = boost::make_shared<Label>(FloatRect(pair.second, textSize.width, textSize.height), owner, s->text, s.get(), origin);
cr->rectangle(l->box.minX, l->box.minY, l->box.getWidth(), l->box.getHeight());
cr->stroke();
labels.push_back(l);
}
std::vector<shared_ptr<Label> > placed;
placeLabels(labels, placed);
for (auto& l: placed)
{
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0);
cr->move_to(l->box.minX, l->box.maxY);
cr->show_text(l->style->text.str());
cr->fill();
cr->set_source_rgba(1.0, 0.0, 0.0, 0.5);
cr->rectangle(l->box.minX, l->box.minY, l->box.getWidth(), l->box.getHeight());
cr->fill();
}
cr->restore();
}
void ConsoleWindow::draw(Cairo::RefPtr<Cairo::Context> ctx)
{
ctx->save();
ctx->set_source_rgba(0, 0, 0, 0.8);
ctx->paint();
ctx->set_source_rgba(1, 1, 1, 0.3);
ctx->move_to(0, height - 0.5);
ctx->line_to(width, height - 0.5);
ctx->set_line_width(1);
ctx->stroke();
ctx->restore();
ctx->move_to(10, 16);
ctx->set_source_rgb(1, 1, 1);
ctx->select_font_face("Menlo", Cairo::FONT_SLANT_NORMAL, Cairo::FONT_WEIGHT_NORMAL);
ctx->set_font_size(13);
ctx->show_text(input);
}
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 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();
}
bool MyPaintBox::on_expose_event(GdkEventExpose *event) {
call_paint_func(event);
Cairo::RefPtr<Cairo::Context> cr = Glib::wrap(event->window, true)->create_cairo_context();
gdk_cairo_region(cr->cobj(), event->region);
cr->clip();
cr->set_source_rgba(0.0, 0.0, 0.0, 1-background_adj->get_value());
cr->paint();
foreach(sigc::bind(sigc::mem_fun(this, &MyPaintBox::propagate_expose), event));
return true;
}
/** 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();
}
int main(int, char**) {
Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create(
Cairo::FORMAT_ARGB32, WIDTH, HEIGHT);
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create(surface);
// fill background in white
cr->set_source_rgb(1.0, 1.0, 1.0);
cr->paint();
// draw a little dot at the point where text will be drawn
cr->arc(TEXT_ORIGIN_X, TEXT_ORIGIN_Y, FONT_SIZE / 4.0, 0, 2 * M_PI);
cr->set_source_rgba(0.0, 1.0, 0.0, 0.5);
cr->fill();
// draw the text
cr->move_to(TEXT_ORIGIN_X, TEXT_ORIGIN_Y);
cr->set_source_rgb(0.8, 0.2, 0.2);
Cairo::RefPtr<BoxFontFace> font = BoxFontFace::create();
cr->set_font_face(font);
cr->set_font_size(FONT_SIZE);
cr->show_text("cairomm!");
// Now show it with the toy text API to
// demonstrate how the glyphs match up
cr->move_to(TEXT_ORIGIN_X, TEXT_ORIGIN_Y);
cr->set_source_rgba(0.2, 0.2, 0.2, 0.3);
Cairo::RefPtr<Cairo::ToyFontFace> toy_font = Cairo::ToyFontFace::create(
"Bitstream Charter", Cairo::FONT_SLANT_NORMAL,
Cairo::FONT_WEIGHT_BOLD);
cr->set_font_face(toy_font);
cr->set_font_size(FONT_SIZE);
cr->show_text("cairomm!");
const char* filename = "user-font.png";
try {
surface->write_to_png(filename);
std::cout << "Wrote Image " << filename << std::endl;
return 0;
} catch (const std::exception& e) {
std::cout << "** Unable to write Image " << filename << std::endl;
return 1;
}
}
bool ColorArea::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
cr->set_source_rgba(_color.red / 255.0,
_color.green / 255.0,
_color.blue / 255.0,
_color.alpha / 255.0);
cr->paint();
return true;
}
bool MyArea_private::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
if (pixbuf == 0) return false;
cr->set_source_rgba(0xff, 0xff, 0xff, 0xff);
cr->rectangle(0, 0, 800, 640);
cr->fill();
Gdk::Cairo::set_source_pixbuf(cr, pixbuf);
cr->paint();
cr->stroke();
return true;
}
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 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 EmblemCellRenderer::do_render(const Cairo::RefPtr<Cairo::Context>& context, int widget, int background_area, Gdk::Rectangle &cell_area, int flags) {
context->translate(cell_area.get_x(), cell_area.get_y());
context->rectangle(0, 0, cell_area.get_width(), cell_area.get_height());
context->clip();
// TODO: Incorporate padding
context->push_group();
if (!this->_icon_name.empty()) {
Glib::RefPtr<Gdk::Pixbuf> pixbuf = this->_get_pixbuf(this->_icon_name, this->_icon_size);
context->set_operator(Cairo::OPERATOR_SOURCE);
// Assumes square icons; may break if we don't get the requested size
int height_offset = int((cell_area.get_height() - pixbuf->get_height())/2);
Gdk::Cairo::set_source_pixbuf(context, pixbuf, 0, height_offset);
context->rectangle(0, height_offset,
pixbuf->get_width(), pixbuf->get_height());
context->fill();
if (this->_tint_color) {
Gdk::RGBA* c = this->_tint_color;
gushort r = c->get_red();
gushort g = c->get_green();
gushort b = c->get_blue();
// Figure out the difference between our tint colour and an
// empirically determined (i.e., guessed) satisfying luma and
// adjust the base colours accordingly
double luma = (r + r + b + g + g + g) / 6.;
double extra_luma = (1.2 - luma) / 3.;
r = std::min(r + extra_luma, 1.);
g = std::min(g + extra_luma, 1.);
b = std::min(b + extra_luma, 1.);
context->set_source_rgba(r, g, b, 0.4);
context->set_operator(Cairo::OPERATOR_ATOP);
context->paint();
}
if (!this->_emblem_name.empty()) {
Glib::RefPtr<Gdk::Pixbuf> pixbuf = this->_get_pixbuf(this->_emblem_name, this->_emblem_size);
int x_offset = this->_icon_size - this->_emblem_size;
context->set_operator(Cairo::OPERATOR_OVER);
Gdk::Cairo::set_source_pixbuf(context, pixbuf, x_offset, 0);
context->rectangle(x_offset, 0,
cell_area.get_width(), this->_emblem_size);
context->fill();
}
}
context->pop_group_to_source();
context->set_operator(Cairo::OPERATOR_OVER);
context->paint();
}
//! Debug function that prints identifier on the tile
void Renderer::printTileId(const Cairo::RefPtr<Cairo::Context>& cr,
const shared_ptr<TileIdentifier>& id) const
{
cr->save();
cr->set_font_size(10);
cr->move_to(5.0, TILE_SIZE - 10);
std::ostringstream labelstrm;
labelstrm << "X: " << id->getX() << " Y: " << id->getY();
labelstrm << " Zoom: " << id->getZoom();
labelstrm << " Style: " << id->getStylesheetPath();
std::string label = labelstrm.str();
cr->text_path(label.c_str());
cr->set_source_rgba(1.0, 1.0, 1.0, 1.0);
cr->set_line_width(2.0);
cr->stroke_preserve();
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0);
cr->fill();
cr->restore();
}
bool MainWindow::first_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
Gtk::Allocation allocation = m_first.get_allocation();
cr->set_source_rgba(0, 0, 0, 1);
cr->rectangle(0, 0, allocation.get_width(), allocation.get_height());
cr->fill();
if(m_png)
{
cr->set_source(m_png, 0, 0);
cr->paint();
}
return true;
}
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();
}
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 drawMotionItem(const MotionItem2D& item){
Glib::RefPtr<Gdk::Window> window = drawingAreaMain->get_window();
if(window){
int width;
int height;
drawingAreaMain->get_size_request(width,height);
Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
if (item.motion > 0){
cr->set_source_rgba(1.0, 0.0, 0.0,1.0);
cr->rectangle(item.area.x, item.area.y, item.area.width, item.area.height);
cr->stroke();
}
}
}
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
}
bool TransparentSlider::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
auto window = get_window();
Cairo::RectangleInt window_size;
Cairo::RectangleInt clip;
double x1, y1, x2, y2;
cr->get_clip_extents(x1, y1, x2, y2);
clip.height = _round(y2-y1);
clip.width = _round(x2-x1);
clip.x = _round(x1);
clip.y = _round(y1);
window_size.x = 0;
window_size.y = 0;
window_size.height = window->get_height();
window_size.width = window->get_width();
cr->save();
if (_SUPPORTS_ALPHA) {
cr->set_source_rgba( // transparent
_adjustmentRed->get_value(),
_adjustmentGreen->get_value(),
_adjustmentBlue->get_value(),
_adjustmentAlpha->get_value());
} else {
cr->set_source_rgb( // opaque
_adjustmentRed->get_value(),
_adjustmentGreen->get_value(),
_adjustmentBlue->get_value());
}
cr->set_operator(Cairo::OPERATOR_SOURCE);
if (clip.height==window_size.height && clip.width==window_size.width && clip.x==window_size.x && clip.y==window_size.y) {
} else {
window->invalidate(true);
}
cr->reset_clip();
cr->paint();
cr->restore();
return Gtk::Window::on_draw(cr);
}
void CurveEditPart::drawControlLine(Cairo::RefPtr<Cairo::Context> context, const Point& start_point, const Point& end_point)
{
context->begin_new_path();
context->move_to (start_point.getX(), start_point.getY());
context->line_to (end_point.getX(), end_point.getY());
context->set_source_rgba (1, 0, 0, 0.5);
std::vector< double > dashes(2);
dashes[0] = 2.0;
dashes[1] = 2.0;
context->set_dash (dashes, 0.0);
context->set_line_width (1.0);
context->stroke();
}
void RectangularSelectionLayer::draw(const Cairo::RefPtr<Cairo::Context>& context)
{
if (!_is_visible || !_width || !_height) {
return;
}
if (_current_time != _timestamp) {
return;
}
context->save();
context->set_source_rgba(1.0, 0.0, 0.0, 0.5);
context->rectangle(_x - 0.5, _y - 0.5, _width, _height);
context->set_line_width(1.0);
context->stroke();
context->restore();
}
//const Cairo::RefPtr<Cairo::Context>& cr
virtual bool on_draw(const Cairo::RefPtr<Cairo::Context> &cr) {
Gtk::Allocation alloc = get_allocation();
int ancho = alloc.get_width();
int alto = alloc.get_height();
int x = ancho / 2;
int y = alto / 2;
int w = 3 * ancho / 4.0;
int h = alto / 2.0;
cr->save();
cr->translate(x, y);
cr->scale(w, h);
cr->arc(0, 0, 1.0, 0, 2 * M_PI);
cr->set_source_rgba(0, 0, 1.0, 0);
// cr->fill_preserve();
cr->restore(); // back to opaque black
cr->stroke();
return true;
}
bool level_editor::tileset_display::on_expose_event(GdkEventExpose* event) {
Glib::RefPtr<Gdk::Window> window = get_window();
if (!window || !m_surface)
return true;
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->set_source(m_surface, 0, 0);
cr->paint();
// Show selection rectangle when we are selecting
if (m_selecting
|| ((m_select_x != m_select_end_x || m_select_y != m_select_end_y)
&& m_preferences.sticky_tile_selection)) {
const int x = std::min(m_select_x, m_select_end_x) * m_tile_width;
const int y = std::min(m_select_y, m_select_end_y) * m_tile_height;
const int w = (std::abs(m_select_x - m_select_end_x))
* m_tile_width;
const int h = (std::abs(m_select_y - m_select_end_y))
* m_tile_height;
cr->save();
cr->rectangle(x, y, w, h);
// TODO: move selection color somewhere else (preferences?)
cr->set_source_rgb(0.7, 1, 1);
if (m_preferences.selection_background) {
cr->stroke_preserve();
cr->set_source_rgba(0.7, 1, 0, 0.2);
cr->fill();
} else {
cr->stroke();
}
cr->restore();
}
return true;
}
/**
* Draws a curve for the speed graph.
*/
void GtkGraph::draw(std::queue<double> q, double height, double increment, double maxValue, const Cairo::RefPtr<Cairo::Context>& cr)
{
// wizards use computers
// computers use numbers
// no magic
double offset = increment * (m_displaySize - q.size());
cr->move_to(0, height);
for(unsigned i = 0; i< (m_displaySize - q.size());++i)
cr->line_to(i*increment, height);
double oldy;
if(q.empty()) return;
oldy = height - (q.front() * height / maxValue);
cr->line_to(offset, oldy);
q.pop();
double x = increment + offset;
while(!q.empty())
{
double y = height - (q.front() * height / maxValue);
cr->curve_to(x - increment/2, oldy, x - increment/2, y, x, y);
q.pop();
oldy = y;
x += increment;
}
if(gt::Settings::settings["GraphStyle"] == "Fill")
{
cr->stroke_preserve();
Gdk::Cairo::set_source_rgba(cr, Gdk::RGBA(gt::Settings::settings[(upl) ? "GraphUploadFillColor" : "GraphDownloadFillColor"]));
cr->line_to(x - increment, height);
cr->line_to(0,height);
auto k = Gdk::RGBA(gt::Settings::settings[(upl) ? "GraphUploadFillColor" : "GraphDownloadFillColor"]);
cr->set_source_rgba(k.get_red(), k.get_green(), k.get_blue(), k.get_alpha() * 0.5);
cr->fill();
}
else cr->stroke();
}
void drawMotion(const MotionItem2DSeq& motionSeq){
Glib::RefPtr<Gdk::Window> window = drawingAreaMain->get_window();
if(window){
int width;
int height;
drawingAreaMain->get_size_request(width,height);
Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
// Store context
//cr->save();
// Draw the source image on the widget context
//cr->set_source(pImpl->image_surface, 0.0, 0.0);
//cr->rectangle(0.0, 0.0, imgBuff->get_width(), imgBuff->get_height());
//cr->clip();
//cr->paint();
//cr->set_line_width(2.0);
// 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->rectangle(event->area.x, event->area.y,
// event->area.width, event->area.height);
//cr->clip();
MotionItem2DSeq::const_iterator m_it = motionSeq.begin();
for (;m_it!=motionSeq.end(); m_it++){
if (m_it->motion > 0){
cr->set_source_rgba(1.0, 0.0, 0.0,1.0);
cr->rectangle(m_it->area.x, m_it->area.y, m_it->area.width, m_it->area.height);
cr->stroke();
}
}
// Restore context
//cr->restore();
}
}