mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-12-24 17:05:29 +00:00
gtk-sharp module split
svn path=/trunk/gtk-sharp/; revision=63105
This commit is contained in:
parent
9c9d7caed5
commit
b9d1fd5180
|
@ -1,168 +0,0 @@
|
|||
// Canvas.cs - port of standard GNOME canvas demo
|
||||
//
|
||||
// Author: Rachel Hestilow <hestilow@ximian.com>
|
||||
//
|
||||
// (c) 2002 Rachel Hestilow
|
||||
|
||||
namespace GtkSamples {
|
||||
|
||||
using Gnome;
|
||||
using Gtk;
|
||||
using Gdk;
|
||||
using System;
|
||||
|
||||
public class CanvasExample {
|
||||
private int width = 400, height = 400;
|
||||
private double remember_x = 0.0, remember_y = 0.0;
|
||||
|
||||
private Canvas canvas;
|
||||
private Random random = new Random ();
|
||||
|
||||
public CanvasExample () {
|
||||
Gtk.Window win = new Gtk.Window ("Canvas example");
|
||||
win.DeleteEvent += new DeleteEventHandler (Window_Delete);
|
||||
|
||||
VBox vbox = new VBox (false, 0);
|
||||
win.Add (vbox);
|
||||
|
||||
vbox.PackStart (new Label ("Drag - move object.\n" +
|
||||
"Double click - change color\n" +
|
||||
"Right click - delete object"),
|
||||
false, false, 0);
|
||||
|
||||
canvas = new Canvas ();
|
||||
canvas.SetSizeRequest (width, height);
|
||||
canvas.SetScrollRegion (0.0, 0.0, (double) width, (double) height);
|
||||
vbox.PackStart (canvas, false, false, 0);
|
||||
|
||||
HBox hbox = new HBox (false, 0);
|
||||
vbox.PackStart (hbox, false, false, 0);
|
||||
|
||||
Button add_button = new Button ("Add an object");
|
||||
add_button.Clicked += new EventHandler (AddObject);
|
||||
hbox.PackStart (add_button, false, false, 0);
|
||||
|
||||
Button quit_button = new Button ("Quit");
|
||||
quit_button.Clicked += new EventHandler (Quit);
|
||||
hbox.PackStart (quit_button, false, false, 0);
|
||||
|
||||
win.ShowAll ();
|
||||
}
|
||||
|
||||
void Swap (ref double a, ref double b) {
|
||||
double tmp = a;
|
||||
a = b;
|
||||
b = tmp;
|
||||
}
|
||||
|
||||
void AddObject (object obj, EventArgs args)
|
||||
{
|
||||
double x1 = random.Next (width);
|
||||
double y1 = random.Next (height);
|
||||
double x2 = random.Next (width);
|
||||
double y2 = random.Next (height);
|
||||
|
||||
if (x1 > x2)
|
||||
Swap (ref x1, ref x2);
|
||||
|
||||
if (y1 > y2)
|
||||
Swap (ref y1, ref y2);
|
||||
|
||||
if ((x2 - x1) < 10)
|
||||
x2 += 10;
|
||||
|
||||
if ((y2 - y1) < 10)
|
||||
y2 += 10;
|
||||
|
||||
CanvasRE item = null;
|
||||
if (random.Next (2) > 0)
|
||||
item = new CanvasRect (canvas.Root ());
|
||||
else
|
||||
item = new CanvasEllipse (canvas.Root ());
|
||||
|
||||
item.X1 = x1;
|
||||
item.Y1 = y1;
|
||||
item.X2 = x2;
|
||||
item.Y2 = y2;
|
||||
item.FillColor = "white";
|
||||
item.OutlineColor = "black";
|
||||
item.WidthUnits = 1.0;
|
||||
|
||||
item.CanvasEvent += new Gnome.CanvasEventHandler (Item_Event);
|
||||
}
|
||||
|
||||
void ChangeItemColor (CanvasRE item)
|
||||
{
|
||||
string[] colors = new string[] {"red", "yellow", "green", "cyan", "blue", "magenta"};
|
||||
item.FillColor = colors[random.Next (colors.Length)];
|
||||
}
|
||||
|
||||
void Item_Event (object obj, Gnome.CanvasEventArgs args) {
|
||||
EventButton ev = new EventButton (args.Event.Handle);
|
||||
CanvasRE item = (CanvasRE) obj;
|
||||
|
||||
switch (ev.Type) {
|
||||
case EventType.ButtonPress:
|
||||
if (ev.Button == 1) {
|
||||
remember_x = ev.X;
|
||||
remember_y = ev.Y;
|
||||
args.RetVal = true;
|
||||
return;
|
||||
} else if (ev.Button == 3) {
|
||||
item.Destroy ();
|
||||
args.RetVal = true;
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case EventType.TwoButtonPress:
|
||||
ChangeItemColor (item);
|
||||
args.RetVal = true;
|
||||
return;
|
||||
case EventType.MotionNotify:
|
||||
Gdk.ModifierType state = (Gdk.ModifierType) ev.State;
|
||||
if ((state & Gdk.ModifierType.Button1Mask) != 0) {
|
||||
double new_x = ev.X, new_y = ev.Y;
|
||||
item.Move (new_x - remember_x, new_y - remember_y);
|
||||
remember_x = new_x;
|
||||
remember_y = new_y;
|
||||
args.RetVal = true;
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case EventType.EnterNotify:
|
||||
item.WidthUnits = 3.0;
|
||||
args.RetVal = true;
|
||||
return;
|
||||
case EventType.LeaveNotify:
|
||||
item.WidthUnits = 1.0;
|
||||
args.RetVal = true;
|
||||
return;
|
||||
}
|
||||
|
||||
args.RetVal = false;
|
||||
return;
|
||||
}
|
||||
|
||||
void Quit (object obj, EventArgs args)
|
||||
{
|
||||
Application.Quit ();
|
||||
}
|
||||
|
||||
void Window_Delete (object obj, DeleteEventArgs args)
|
||||
{
|
||||
Application.Quit ();
|
||||
args.RetVal = true;
|
||||
}
|
||||
|
||||
public static int Main (string[] args)
|
||||
{
|
||||
Application.Init ();
|
||||
|
||||
new CanvasExample ();
|
||||
|
||||
Application.Run ();
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in a new issue