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#include <iostream>
#include <gtkmm.h>
#include "canvas/canvas.h"
#include "canvas/rectangle.h"
#include "canvas/pixbuf.h"
using namespace std;
using namespace ArdourCanvas;
Rectangle* rectangle = 0;
bool
event (GdkEvent* ev)
{
static bool dragging = false;
static Duple offset;
if (ev->type == GDK_BUTTON_PRESS) {
GdkEventButton* b = reinterpret_cast<GdkEventButton*> (ev);
if (b->button == 1) {
dragging = true;
offset = Duple (b->x, b->y) - rectangle->position ();
rectangle->grab ();
cout << "Dragging offset=" << offset << "\n";
}
} else if (ev->type == GDK_BUTTON_RELEASE) {
GdkEventButton* b = reinterpret_cast<GdkEventButton*> (ev);
cout << "Release.\n";
if (b->button == 1) {
dragging = false;
rectangle->ungrab ();
cout << "Drag complete.\n";
}
} else if (ev->type == GDK_MOTION_NOTIFY) {
GdkEventMotion* m = reinterpret_cast<GdkEventMotion*> (ev);
if (dragging) {
rectangle->set_position (Duple (m->x, m->y) - offset);
cout << "Move to " << (Duple (m->x, m->y) - offset) << "\n";
}
}
return true;
}
int main (int argc, char* argv[])
{
Gtk::Main kit (argc, argv);
Gtk::Window window;
window.set_title ("Hello world");
window.set_size_request (768, 768);
Gtk::Adjustment hadj (0, 0, 1e3);
Gtk::Adjustment vadj (0, 0, 1e3);
GtkCanvasViewport viewport (hadj, vadj);
GtkCanvas* canvas = viewport.canvas ();
rectangle = new Rectangle (canvas->root(), Rect (64, 64, 128, 128));
rectangle->set_outline_color (0xff0000aa);
rectangle->Event.connect (sigc::ptr_fun (event));
window.add (viewport);
canvas->show ();
window.show_all ();
Gtk::Main::run (window);
return 0;
}
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