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 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 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 RegionChooser::draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
int clip_low, int clip_high) {
const int h = KEYBOARD_HEIGHT;
const int w = get_width() - 1;
const int bh = int(h * 0.55);
Gdk::Cairo::set_source_rgba(cr, black);
cr->rectangle(0.5, h1 + 0.5, w, h - 1);
cr->stroke();
int x1 = key_to_x(20.5, w);
Gdk::Cairo::set_source_rgba(cr, grey1);
cr->rectangle(1, h1 + 1, x1 - 1, h - 2);
cr->fill();
int x2 = key_to_x(109.5, w);
Gdk::Cairo::set_source_rgba(cr, white);
cr->rectangle(x1 + 1, h1 + 1, x2 - x1 - 1, h - 2);
cr->fill();
Gdk::Cairo::set_source_rgba(cr, grey1);
cr->rectangle(x2 + 1, h1 + 1, w - x2 - 1, h - 2);
cr->fill();
Gdk::Cairo::set_source_rgba(cr, black);
int clipkey1 = std::max(0, x_to_key_right(clip_low - 1, w));
int clipkey2 = std::min(x_to_key_right(clip_high - 1, w) + 1, 128);
for (int i = clipkey1 ; i < clipkey2 ; i++) {
int note = (i + 3) % 12;
int x = key_to_x(i, w);
if (note == 1 || note == 4 || note == 6 ||
note == 9 || note == 11) {
// black key: short line in the middle, with a rectangle
// on top
int x2 = key_to_x(i + 0.5, w);
cr->move_to(x2 + 0.5, h1 + bh + 0.5);
cr->line_to(x2 + 0.5, h1 + h - 1);
cr->stroke();
int x3 = key_to_x(i + 1, w);
cr->rectangle(x, h1 + 1, x3 - x + 1, bh);
cr->fill();
} else if (note == 3 || note == 8) {
// C or F: long line to the left
cr->move_to(x + 0.5, h1 + 1);
cr->line_to(x + 0.5, h1 + h - 1);
cr->stroke();
}
if (key_pressed[i]) draw_key(cr, i);
if (note == 3) draw_digit(cr, i);
}
}
void BezierPath::Invocation::draw(const Cairo::RefPtr<Cairo::Context> & cr)
{
if (!path) return;
//Execute the bezier path.
path->execute(cr);
//Stroke, fill or do both.
if (stroke && fill) {
cr->fill_preserve();
cr->stroke();
}
else if (stroke) cr->stroke();
else if (fill) cr->fill();
}
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
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();
}
static void
skillgui_cairo_render_bezier(GVJ_t * job, pointf * A, int n, int arrow_at_start,
int arrow_at_end, int filled)
{
#ifdef USE_GVPLUGIN_TIMETRACKER
__tt.ping_start(__ttc_bezier);
++__num_bezier;
#endif
//printf("Bezier\n");
SkillGuiCairoRenderInstructor *cri = (SkillGuiCairoRenderInstructor *)job->context;
Cairo::RefPtr<Cairo::Context> cairo = cri->get_cairo();
obj_state_t *obj = job->obj;
skillgui_cairo_set_penstyle(cairo, job);
cairo->move_to(A[0].x, -A[0].y);
for (int i = 1; i < n; i += 3)
cairo->curve_to(A[i].x, -A[i].y, A[i + 1].x, -A[i + 1].y,
A[i + 2].x, -A[i + 2].y);
if (filled) {
skillgui_cairo_set_color(cairo, &(obj->fillcolor));
cairo->fill_preserve();
}
skillgui_cairo_set_color(cairo, &(obj->pencolor));
cairo->stroke();
#ifdef USE_GVPLUGIN_TIMETRACKER
__tt.ping_end(__ttc_bezier);
#endif
}
static void
skillgui_cairo_render_polyline(GVJ_t * job, pointf * A, int n)
{
#ifdef USE_GVPLUGIN_TIMETRACKER
__tt.ping_start(__ttc_polyline);
++__num_polyline;
#endif
//printf("Polyline\n");
SkillGuiCairoRenderInstructor *cri = (SkillGuiCairoRenderInstructor *)job->context;
Cairo::RefPtr<Cairo::Context> cairo = cri->get_cairo();
obj_state_t *obj = job->obj;
skillgui_cairo_set_penstyle(cairo, job);
//cairo->set_line_width(obj->penwidth * job->scale.x);
cairo->move_to(A[0].x, -A[0].y);
for (int i = 1; i < n; i++) {
cairo->line_to(A[i].x, -A[i].y);
}
skillgui_cairo_set_color(cairo, &(obj->pencolor));
cairo->stroke();
#ifdef USE_GVPLUGIN_TIMETRACKER
__tt.ping_end(__ttc_polyline);
#endif
}
bool
ButtonWidget::on_expose_event(GdkEventExpose* event)
{
Gtk::DrawingArea::on_expose_event(event);
Glib::RefPtr<Gdk::Window> window = get_window();
if(window)
{
Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
int w = get_allocation().get_width() - 10;
int h = get_allocation().get_height() - 10;
cr->set_source_rgb(0.0, 0.0, 0.0);
cr->set_line_width(1.0);
cr->translate(5, 5);
cr->rectangle(0, 0, w, h);
if (down)
cr->fill_preserve();
cr->stroke();
if (down)
cr->set_source_rgb(1.0, 1.0, 1.0);
// FIXME: There are better ways to center text
if (name.size() == 2)
cr->move_to(w/2-6, h/2+3);
else
cr->move_to(w/2-4, h/2+3);
cr->show_text(name);
}
return true;
}
/** Drawing event handler. */
virtual bool
on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
switch (_curShape) {
case SHAPE_RECTANGLE:
cr->rectangle(20, 20, 200, 100);
cr->set_source_rgb(0, 0.8, 0);
cr->fill_preserve();
break;
case SHAPE_ELLIPSE:
cr->arc(150, 100, 90, 0, 2 * 3.14);
cr->set_source_rgb(0.8, 0, 0);
cr->fill_preserve();
break;
case SHAPE_TRIANGLE:
cr->move_to(40, 40);
cr->line_to(200, 40);
cr->line_to(120, 160);
cr->line_to(40, 40);
cr->set_source_rgb(0.8, 0, 0.8);
cr->fill_preserve();
cr->set_line_cap(Cairo::LINE_CAP_ROUND);
cr->set_line_join(Cairo::LINE_JOIN_ROUND);
break;
}
cr->set_line_width(3);
cr->set_source_rgb(0, 0, 0);
cr->stroke();
return true;
}
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
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 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 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 GraphicalItem::drawRoundedRectangle(
const Cairo::RefPtr<Cairo::Context>& context,
int x, int y,
int width, int height,
double aspect,
double corner_radius,
double red, double green, double blue)
{
double radius = corner_radius / aspect;
double degrees = M_PI / 180.0;
context->begin_new_sub_path();
context->arc(x + width - radius, y + radius, radius,
-90 * degrees, 0 * degrees);
context->arc(x + width - radius, y + height - radius,
radius, 0 * degrees, 90 * degrees);
context->arc(x + radius, y + height - radius, radius,
90 * degrees, 180 * degrees);
context->arc(x + radius, y + radius, radius,
180 * degrees, 270 * degrees);
context->close_path();
context->set_source_rgb(red, green, blue);
context->fill_preserve();
setColor(Settings::settings().getForegroundColor(), context);
context->stroke();
}
/* Callback on_draw */
bool SensorsMap::on_draw (const Cairo::RefPtr<Cairo::Context>& cr)
{
/* Get window allocation */
Gtk::Allocation allocation = get_allocation ();
const int width = allocation.get_width ();
const int height = allocation.get_height ();
/* Get center of the window */
int xc, yc;
xc = width / 2;
yc = height / 2;
// DEBUG
cr->set_line_width(10.0);
// draw red lines out from the center of the window
cr->set_source_rgb(0.8, 0.0, 0.0);
cr->move_to(0, 0);
cr->line_to(xc, yc);
cr->line_to(0, height);
cr->move_to(xc, yc);
cr->line_to(width, yc);
cr->stroke();
// END DEBUG
/* Return success */
return true;
}
bool MyWidget::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
const double scale_x = (double)get_allocation().get_width() / m_scale;
const double scale_y = (double)get_allocation().get_height() / m_scale;
// paint the background
Gdk::Cairo::set_source_rgba(cr, get_style_context()->get_background_color());
cr->paint();
// draw the foreground
Gdk::Cairo::set_source_rgba(cr, get_style_context()->get_color());
cr->move_to(155.*scale_x, 165.*scale_y);
cr->line_to(155.*scale_x, 838.*scale_y);
cr->line_to(265.*scale_x, 900.*scale_y);
cr->line_to(849.*scale_x, 564.*scale_y);
cr->line_to(849.*scale_x, 438.*scale_y);
cr->line_to(265.*scale_x, 100.*scale_y);
cr->line_to(155.*scale_x, 165.*scale_y);
cr->move_to(265.*scale_x, 100.*scale_y);
cr->line_to(265.*scale_x, 652.*scale_y);
cr->line_to(526.*scale_x, 502.*scale_y);
cr->move_to(369.*scale_x, 411.*scale_y);
cr->line_to(633.*scale_x, 564.*scale_y);
cr->move_to(369.*scale_x, 286.*scale_y);
cr->line_to(369.*scale_x, 592.*scale_y);
cr->move_to(369.*scale_x, 286.*scale_y);
cr->line_to(849.*scale_x, 564.*scale_y);
cr->move_to(633.*scale_x, 564.*scale_y);
cr->line_to(155.*scale_x, 838.*scale_y);
cr->stroke();
return true;
}
void
ColorSlider::draw_arrow(
const Cairo::RefPtr<Cairo::Context> &cr,
double x, double y,
double width, double height,
int size,
bool fill)
{
//TODO hardcoded colors
Color dark(0, 0, 0);
Color light(1, 1, 1);
//!TODO FActorize ! (Duplicate code with "Widget_Keyframe_List::draw_arrow")
//! Upper black pointing down arrow
cr->set_source_rgb(dark.get_r(), dark.get_g(), dark.get_b());
cr->set_line_width(1.0);
cr->move_to(x, y);
cr->line_to(x - 0.5*width, y - height);
cr->line_to(x + 0.5*width, y - height);
cr->close_path();
if (fill)
{
/* //! Draw on outline
cr->fill_preserve();
cr->set_source_rgb(light.get_r(), light.get_g(), light.get_b());
cr->stroke();
*/
cr->fill();
}else cr->stroke();
//! Bottom light pointing up arrow
cr->set_source_rgb(light.get_r(), light.get_g(), light.get_b());
cr->set_line_width(1.0);
cr->move_to(x, size - height);
cr->line_to(x - 0.5*width, size);
cr->line_to(x + 0.5*width, size);
cr->close_path();
if (fill)
{
/* //! Draw on outline
cr->fill_preserve();
cr->set_source_rgb(dark.get_r(), dark.get_g(), dark.get_b());
cr->stroke();
*/
cr->fill();
}else cr->stroke();
}
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
}
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;
}
void NodeSurface::DrawRoundedRectangle(
Cairo::RefPtr<Cairo::Context> refCairo,
double x,
double y,
double width,
double height,
double radius,
double red,
double green,
double blue,
bool selected )
{
refCairo->save();
if ( (radius > height/2.0) || (radius > width/2.0) )
{
radius = std::min<double>(height / 2, width / 2);
}
refCairo->move_to( x, y + radius );
refCairo->arc( x + radius, y + radius, radius, sk_pi, -sk_pi / 2.0 );
refCairo->line_to( x + width - radius, y );
refCairo->arc( x + width - radius, y + radius, radius, -sk_pi / 2.0, 0 );
refCairo->line_to( x + width, y + height - radius );
refCairo->arc( x + width - radius, y + height - radius, radius, 0, sk_pi / 2.0 );
refCairo->line_to( x + radius, y + height );
refCairo->arc( x + radius, y + height - radius, radius, sk_pi / 2.0, sk_pi );
refCairo->close_path();
refCairo->set_source_rgb( red, green, blue );
refCairo->fill_preserve();
if ( selected == true )
{
refCairo->set_source_rgb( 1.0, 0.0, 0.0 );
refCairo->set_line_width( 2 );
refCairo->stroke();
}
else
{
refCairo->set_source_rgb( 0.0, 0.0, 0.0 );
refCairo->set_line_width( 1 );
refCairo->stroke();
}
refCairo->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();
}
}
/** \brief Signal handler.
\param cr is a pointer to the cairo context
\return always true
Draws population development (of preys and predators) in the cairo
context object.
*/
bool
Graph::on_draw (const Cairo::RefPtr<Cairo::Context> &cr) {
int w = get_width();
int h = get_height();
if (_is_enabled) {
cr->save();
cr->rectangle(0, 0, w, h);
cr->set_source_rgb(1, 1, 1);
cr->fill();
Bounded<TValues::size_type> startb(0, 0, _values[PREY].size());
Bounded<TValues::size_type> stopb(0, 0, _values[PREY].size());
TValues::size_type start = 0;
TValues::size_type stop = 0;
if (_cont_zoom) {
stop = _values[PREY].size();
start = 0;
}
else {
if (_cont_pos) {
stopb = _values[PREY].size();
start = (stopb - _visible_range).get_value();
stop = start + _visible_range;
}
else {
start = _visible_position;
stop = start + _visible_range;
}
}
draw_line(cr, _values[PREY], _max_values[PREY], start, stop);
cr->set_source_rgb(0, 0, 0);
cr->stroke();
draw_line(cr, _values[PREDATOR], _max_values[PREDATOR], start, stop);
cr->set_source_rgb(1, 0, 0);
cr->stroke();
cr->restore();
}
return true;
}
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 AdvEnvGUIScope::on_expose_event(GdkEventExpose* event)
{
Glib::RefPtr<Gdk::Window> window = get_window();
if (window)
{
float len, x, y, xscale, yscale;
Gtk::Allocation allocation = get_allocation();
const int width = allocation.get_width();
const int height = allocation.get_height();
Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
cr->set_line_width(2.0);
cr->set_source_rgb(0.0, 0.0, 0.0);
cr->paint();
cr->set_source_rgb(0.0, 0.8, 0.0);
cr->rectangle(event->area.x, event->area.y, event->area.width, event->area.height);
cr->clip();
cr->move_to(width, height);
len = m_valueDelay + m_valueAttackTime1 + m_valueAttackTime2 + m_valueAttackTime3 + m_valueAttackTime4 + m_valueReleaseTime1 + m_valueReleaseTime2 + m_valueReleaseTime3 + SUSTAIN_LEN;
xscale = (float) width / len;
yscale = (float) (height - 6);
x = m_valueDelay * xscale;
cr->line_to((int) x, height);
x += m_valueAttackTime1 * xscale;
y = m_valueAttackLevel1 * yscale;
cr->line_to((int) x, height - (int) y);
x += m_valueAttackTime2 * xscale;
y = m_valueAttackLevel2 * yscale;
cr->line_to((int) x, height - (int) y);
x += m_valueAttackTime3 * xscale;
y = m_valueAttackLevel3 * yscale;
cr->line_to((int) x, height - (int) y);
x += m_valueAttackTime4 * xscale;
y = m_valueSustain * yscale;
cr->line_to((int) x, height - (int) y);
x += SUSTAIN_LEN * xscale;
cr->line_to((int) x, height - (int) y);
x += m_valueReleaseTime1 * xscale;
y = m_valueReleaseLevel1 * yscale;
cr->line_to((int) x, height - (int) y);
x += m_valueReleaseTime2 * xscale;
y = m_valueReleaseLevel2 * yscale;
cr->line_to((int) x, height - (int) y);
x += m_valueReleaseTime3 * xscale;
cr->line_to((int) x, height);
x = m_valueDelay * xscale;
cr->line_to((int) x, height);
cr->stroke();
}
return true;
}
void MonitorInterface::dibujar_division_y(Cairo::RefPtr < Cairo::Context >& cr, size_t cant_div, double& offsety, double& offsetx) {
double distancia = 1/double(cant_div);
for(size_t i=0;i<cant_div;++i){
cr->set_line_width(0.009);
cr->move_to(offsetx-largo/2 ,i*distancia-offsety);
cr->line_to(offsetx+largo/2 ,i*distancia-offsety);
cr->stroke();
}
}
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();
}
}
}
}