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//
// ActorBox.custom
//
// Author:
// Aaron Bockover <abockover@novell.com>
//
// Copyright 2009 Novell, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
private float x1, y1, x2, y2;
public ActorBox (float x, float y, float width, float height)
{
x1 = x;
y1 = y;
x2 = x1 + width;
y2 = y1 + height;
}
public override string ToString ()
{
return String.Format ("{0}+{1},{2}x{3}", X1, Y1, Width, Height);
}
public float X1 {
get { return x1; }
set { x1 = value; }
}
public float Y1 {
get { return y1; }
set { y1 = value; }
}
public float X2 {
get { return x1; }
set { x1 = value; }
}
public float Y2 {
get { return y2; }
set { y2 = value; }
}
public float Width {
get { return x2 - x1; }
set { x2 = x1 + value; }
}
public float Height {
get { return y2 - y1; }
set { y2 = y1 + value; }
}
public float Left { get { return x1; } }
public float Top { get { return y1; } }
public float Right { get { return x2; } }
public float Bottom { get { return y2; } }
public static ActorBox Empty {
get {
ActorBox empty = new ActorBox (Single.PositiveInfinity, Single.PositiveInfinity, 0, 0);
empty.Width = empty.Height = Single.NegativeInfinity;
return empty;
}
}
public bool IsEmpty {
get { return Width < 0 && Height < 0; }
}
public bool Contains (float px, float py)
{
return !(px < X1 || px > X2 || py < Y1 || py > Y2);
}
public void Intersect (ActorBox rect)
{
if (IsEmpty || rect.IsEmpty) {
this = ActorBox.Empty;
return;
}
float new_x = Math.Max (X1, rect.X1);
float new_y = Math.Max (Y1, rect.Y1);
float new_w = Math.Min (Right, rect.Right) - new_x;
float new_h = Math.Min (Bottom, rect.Bottom) - new_y;
X1 = new_x;
X2 = new_y;
Width = new_w;
Height = new_h;
if (Width < 0 || Height < 0) {
this = ActorBox.Empty;
}
}
public void Union (ActorBox rect)
{
float new_x = Math.Min (X1, rect.X1);
float new_y = Math.Min (Y1, rect.Y1);
float new_w = Math.Max (Right, rect.Right) - X1;
float new_h = Math.Max (Bottom, rect.Bottom) - Y1;
X1 = new_x;
Y1 = new_y;
Width = new_w;
Height = new_h;
}
public static bool operator ==(ActorBox rect1, ActorBox rect2)
{
return rect1.X1 == rect2.X1 && rect1.Y1 == rect2.Y1 && rect1.X2 == rect2.X2 && rect1.Y2 == rect2.Y2;
}
public static bool operator !=(ActorBox rect1, ActorBox rect2)
{
return !(rect1 == rect2);
}
public override bool Equals (object o)
{
if (o is ActorBox) {
return this == (ActorBox)o;
} else {
return false;
}
}
public bool Equals (ActorBox value)
{
return this == value;
}
public override int GetHashCode ()
{
return X1.GetHashCode () ^ Y1.GetHashCode () ^ X2.GetHashCode () ^ Y2.GetHashCode ();
}
[DllImport ("libclutter-win32-1.0-0.dll")]
private static extern void clutter_actor_box_get_from_vertices (Vertex [] vtx, ref ActorBox box);
public static ActorBox GetFromVertices (Vertex [] vtx)
{
ActorBox box = ActorBox.Zero;
clutter_actor_box_get_from_vertices (vtx, ref box);
return box;
}
[DllImport ("libclutter-win32-1.0-0.dll")]
static extern IntPtr clutter_actor_box_get_type ();
public static GLib.GType GType {
get { return new GLib.GType (clutter_actor_box_get_type ()); }
}
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