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#ifndef VIEW_H
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#define VIEW_H
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#include <vector></vector>
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#include <gtkmm drawingarea.h=""></gtkmm>
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#include "common.h"
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#include "surface.h"
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#include "matrix.h"
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class View: public Gtk::DrawingArea {
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public:
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class Point: public Shared {
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public:
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Vector2 position;
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Color color;
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Real radius;
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bool selected;
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inline explicit Point(
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const Vector2 &position = Vector2(),
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const Color &color = Color(1, 1, 0, 1),
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Real radius = 5.0,
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bool selected = false
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):
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position(position),
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color(color),
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radius(radius),
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selected(selected)
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{ }
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virtual void draw(
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const Cairo::RefPtr<cairo::context>& context,</cairo::context>
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View &view );
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};
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typedef RefPtr<point> PointPtr;</point>
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typedef std::vector<pointptr> PointList;</pointptr>
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public:
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Matrix transform;
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PointList points;
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private:
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bool dragging;
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PointPtr selected_point;
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Vector2 selected_point_offset;
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Vector2 mouse_position; // relative to center of widget
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public:
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View();
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virtual ~View();
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sigc::signal<void, cairo::refptr<cairo::context="" const="">&> signal_draw_view;</void,>
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sigc::signal<void, const="" pointptr&=""> signal_point_motion;</void,>
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sigc::signal<void, const="" pointptr&=""> signal_point_changed;</void,>
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sigc::signal<void> signal_transform_changed;</void>
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void point_motion(const PointPtr &point)
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{ signal_point_motion(point); }
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void point_changed(const PointPtr &point)
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{ point_motion(point); signal_point_changed(point); }
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Real get_pixel_size() const;
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Pair2 get_bounds() const;
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Matrix transform_to_pixels() const;
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Matrix transform_from_pixels() const;
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protected:
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bool on_draw(const Cairo::RefPtr<cairo::context> &context) override;</cairo::context>
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bool on_motion_notify_event(GdkEventMotion *event) override;
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bool on_button_press_event(GdkEventButton *event) override;
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bool on_button_release_event(GdkEventButton *event) override;
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virtual void on_draw_view(const Cairo::RefPtr<cairo::context> &context);</cairo::context>
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virtual void on_point_motion(const PointPtr &point);
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virtual void on_point_changed(const PointPtr &point);
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virtual void on_transform_changed();
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};
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#endif
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