1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/work/peter/canvas-test.cc	Fri Mar 11 16:43:41 2005 +0000
     1.3 @@ -0,0 +1,114 @@
     1.4 +// This example was started by Guillaume Laurent.
     1.5 +// It has become a place to dump code that tests parts of the
     1.6 +// gnomemm canvas code. Little thought has been given to the
     1.7 +// actual on-screen output.
     1.8 +
     1.9 +#include <libgnomecanvasmm.h>
    1.10 +#include <libgnomecanvasmm/polygon.h>
    1.11 +#include <iostream>
    1.12 +
    1.13 +class CanvasExample : public Gnome::Canvas::CanvasAA
    1.14 +{
    1.15 +	typedef Gnome::Canvas::CanvasAA Parent;
    1.16 +
    1.17 +public:
    1.18 +	CanvasExample();
    1.19 +	virtual ~CanvasExample();
    1.20 +
    1.21 +private:
    1.22 +	bool event_handler(GdkEvent* e, bool b);
    1.23 +	Gnome::Canvas::Points coos;
    1.24 +	Gnome::Art::Point * wp;
    1.25 +	Gnome::Canvas::Ellipse ** nodes;
    1.26 +	Gnome::Canvas::Polygon * sides;
    1.27 +	Gnome::Canvas::Group triangle;
    1.28 +};
    1.29 +
    1.30 +bool CanvasExample::event_handler(GdkEvent* e, bool b)
    1.31 +{
    1.32 +	bool isbutton=true;
    1.33 +	switch(e->type)
    1.34 +	{
    1.35 +		case GDK_BUTTON_PRESS: printf("Node is pressed!\n"); break;
    1.36 +		//case GDK_BUTTON_RELEASE: printf("Node is released!\n"); break;
    1.37 +		default: isbutton=false; break;
    1.38 +	}
    1.39 +	if(isbutton)
    1.40 +	{
    1.41 +		//(get_item_at(e->button.x, e->button.y))->move(5,5);
    1.42 +		(get_item_at(e->button.x, e->button.y))->hide();
    1.43 +	}
    1.44 +}
    1.45 +
    1.46 +CanvasExample::CanvasExample():triangle(*(root()), 0, 0)
    1.47 +{
    1.48 +	double ax=100;
    1.49 +	double ay=100;
    1.50 +	double bx=-100;
    1.51 +	double by=100;
    1.52 +	double cx=0;
    1.53 +	double cy=-100;
    1.54 +	coos.push_back(Gnome::Art::Point(100, 100));
    1.55 +	coos.push_back(Gnome::Art::Point(-100, 100));
    1.56 +	coos.push_back(Gnome::Art::Point(0, -100));
    1.57 +
    1.58 +	sides=new Gnome::Canvas::Polygon(triangle, coos);
    1.59 +	*sides << Gnome::Canvas::Properties::outline_color("green");
    1.60 +	sides->property_width_pixels().set_value(10);
    1.61 +
    1.62 +	nodes=new ( Gnome::Canvas::Ellipse * ) [4];
    1.63 +
    1.64 +	for(int i=0; i<3;i++)
    1.65 +	{
    1.66 +		nodes[i]= new Gnome::Canvas::Ellipse(triangle, coos[i].get_x()-20, coos[i].get_y()-20, coos[i].get_x()+20, coos[i].get_y()+20);
    1.67 +		*(nodes[i]) << Gnome::Canvas::Properties::fill_color("blue");
    1.68 +		*(nodes[i]) << Gnome::Canvas::Properties::outline_color("black");
    1.69 +		(nodes[i])->signal_event().connect(sigc::bind(sigc::mem_fun(*this, &CanvasExample::event_handler),true));
    1.70 +	}
    1.71 +
    1.72 +	wp=new Gnome::Art::Point((ax+bx+cx)/3,(ay+by+cy)/3);
    1.73 +
    1.74 +	nodes[3]= new Gnome::Canvas::Ellipse(triangle, wp->get_x()-20, wp->get_y()-20, wp->get_x()+20, wp->get_y()+20);
    1.75 +	*(nodes[3]) << Gnome::Canvas::Properties::fill_color("blue");
    1.76 +	*(nodes[3]) << Gnome::Canvas::Properties::outline_color("black");
    1.77 +
    1.78 +
    1.79 +}
    1.80 +
    1.81 +CanvasExample::~CanvasExample()
    1.82 +{
    1.83 +}
    1.84 +
    1.85 +//MainWin:
    1.86 +
    1.87 +class MainWin : public Gtk::Window
    1.88 +{
    1.89 +public:
    1.90 +	MainWin(const std::string& title);
    1.91 +
    1.92 +protected:
    1.93 +	//Member widgets:
    1.94 +	CanvasExample m_canvas;
    1.95 +};
    1.96 +
    1.97 +MainWin::MainWin(const std::string& title)
    1.98 +{
    1.99 +	set_title (title);
   1.100 +	add(m_canvas);
   1.101 +	set_default_size(900,600);
   1.102 +
   1.103 +	show_all();
   1.104 +}
   1.105 +
   1.106 +//main():
   1.107 +
   1.108 +int main(int argc, char *argv[])
   1.109 +{
   1.110 +	Gnome::Canvas::init();
   1.111 +	Gtk::Main app(argc, argv);
   1.112 +
   1.113 +	MainWin mainwin("Gnome::Canvas Example");
   1.114 +	app.run(mainwin);
   1.115 +
   1.116 +	return 0;
   1.117 +}