50 lines
1.4 KiB
Vala
50 lines
1.4 KiB
Vala
public class Application : Gtk.Window {
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public Application () {
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// Prepare Gtk.Window:
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this.title = "My Gtk.DrawingArea";
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this.window_position = Gtk.WindowPosition.CENTER;
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this.destroy.connect (Gtk.main_quit);
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this.set_default_size (400, 400);
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// The drawing area:
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Gtk.DrawingArea drawing_area = new Gtk.DrawingArea ();
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drawing_area.draw.connect ((context) => {
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// Get necessary data:
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weak Gtk.StyleContext style_context = drawing_area.get_style_context ();
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int height = drawing_area.get_allocated_height ();
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int width = drawing_area.get_allocated_width ();
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Gdk.RGBA color = style_context.get_color (0);
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// Draw an arc:
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double xc = width / 2.0;
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double yc = height / 2.0;
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double radius = int.min (width, height) / 2.0;
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double angle1 = 0;
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double angle2 = 2*Math.PI;
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context.arc (xc, yc, radius, angle1, angle2);
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Gdk.cairo_set_source_rgba (context, color);
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context.fill ();
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// Text:
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context.set_source_rgb (0.1, 0.1, 0.1);
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context.select_font_face ("Adventure", Cairo.FontSlant.NORMAL, Cairo.FontWeight.BOLD);
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context.set_font_size (20);
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context.move_to (20, 30);
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context.show_text ("Indiana Jones");
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return true;
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});
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this.add (drawing_area);
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}
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public static int main (string[] args) {
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Gtk.init (ref args);
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Application app = new Application ();
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app.show_all ();
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Gtk.main ();
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return 0;
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}
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}
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