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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
//using OpenTK.Graphics.OpenGL;
using Cairo;
using winColors = System.Drawing.Color;
using System.Diagnostics;
using System.Xml.Serialization;
using OpenTK.Input;
namespace go
{
public delegate void GOEvent(GraphicObject sender);
public enum ButtonStates
{
normal,
mouseOver,
mouseDown,
Disable
}
public class Checkbox : Container, IXmlSerializable
{
public GOEvent Click;
bool _isCheckable = false;
bool _isChecked = false;
bool _affectMultiSelectState = false;
bool _border3D = false;
Color _checkedColor;
ButtonStates _CurrentState = ButtonStates.normal;
public Checkbox() : base()
{}
[System.Xml.Serialization.XmlAttributeAttribute()]
[System.ComponentModel.DefaultValue(true)]
public override bool Focusable
{
get { return base.Focusable; }
set { base.Focusable = value; }
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public Color CheckedColor
{
get { return _checkedColor; }
set
{
_checkedColor = value;
registerForGraphicUpdate();
}
}
[System.Xml.Serialization.XmlIgnore]
public ButtonStates CurrentState
{
get { return _CurrentState; }
set
{
if (value == _CurrentState)
return;
_CurrentState = value;
registerForRedraw();
}
}
[System.Xml.Serialization.XmlAttributeAttribute()]
[System.ComponentModel.DefaultValue(false)]
public bool IsChecked
{
get { return _isChecked; }
set
{
if (value == _isChecked)
return;
_isChecked = value;
if (Click != null)
Click(this);
registerForGraphicUpdate();
}
}
[System.Xml.Serialization.XmlAttributeAttribute()]
[System.ComponentModel.DefaultValue(false)]
public bool IsCheckable
{
get { return _isCheckable; }
set { _isCheckable = value; }
}
[System.Xml.Serialization.XmlAttributeAttribute()]
[System.ComponentModel.DefaultValue(false)]
public bool AffectMultiSelectState
{
get { return _affectMultiSelectState; }
set { _affectMultiSelectState = value; }
}
[System.Xml.Serialization.XmlAttributeAttribute()]
[System.ComponentModel.DefaultValue(false)]
public bool Border3d
{
get { return _border3D; }
set { _border3D = value; }
}
public override void Paint(ref Context ctx, Rectangles clip = null)
{
base.Paint(ref ctx, clip);
Rectangle r = Parent.ContextCoordinates (Slot);
ctx.Save();
//ctx.ResetClip();
if (IsCheckable){
if (IsChecked){
ctx.Color = CheckedColor;
ctx.Rectangle(r);
ctx.Fill();
if (Border3d)
CairoHelpers.StrokeLoweredRectangle(ctx, r);
}
else{
if (Border3d)
CairoHelpers.StrokeRaisedRectangle(ctx, r);
}
}
switch (CurrentState){
case ButtonStates.normal:
break;
case ButtonStates.mouseOver:
CairoHelpers.CairoRectangle(ctx,r,CornerRadius);
ctx.Operator = Operator.Add;
ctx.Color = new Color(0.2, 0.2, 0.2, 1.0);
ctx.Fill();
ctx.Operator = Operator.Over;
break;
case ButtonStates.mouseDown:
CairoHelpers.CairoRectangle(ctx,r,CornerRadius);
ctx.Operator = Operator.Add;
ctx.Color = Color.Red;
ctx.Fill();
ctx.Operator = Operator.Over;
break;
case ButtonStates.Disable:
CairoHelpers.CairoRectangle(ctx,r,CornerRadius);
ctx.Color = new Color(0.2, 0.2, 0.2, 0.7);
ctx.Fill();
break;
}
ctx.Restore();
}
#region mouse handling
public override void onMouseButtonDown (object sender,MouseButtonEventArgs e)
{
if (CurrentState != ButtonStates.Disable)
{
if (IsCheckable)
{
if (IsChecked)
IsChecked = false;
else
{
Group wg = Parent as Group;
if (wg != null)
{
if (AffectMultiSelectState && !wg.MultiSelect)
{
foreach (Checkbox but in wg.Children.OfType<Checkbox>())
{
if (but.IsCheckable)
{
if (but.IsChecked && but.AffectMultiSelectState)
{
but.IsChecked = false;
break;
}
}
}
}
}
IsChecked = true;
}
}
//else if (Click != null)
// Click(this);
CurrentState = ButtonStates.mouseDown;
}
base.onMouseButtonDown (sender, e);
}
public override void onMouseButtonUp (object sender, OpenTK.Input.MouseButtonEventArgs e)
{
if (CurrentState != ButtonStates.Disable) {
if (MouseIsIn (e.Position))
CurrentState = ButtonStates.mouseOver;
else
CurrentState = ButtonStates.normal;
}
base.onMouseButtonUp (sender, e);
}
public override void onMouseEnter (object sender, MouseMoveEventArgs e)
{
if (CurrentState == ButtonStates.normal)
CurrentState = ButtonStates.mouseOver;
base.onMouseEnter (sender, e);
}
public override void onMouseLeave (object sender, MouseMoveEventArgs e)
{
if (CurrentState == ButtonStates.mouseOver)
CurrentState = ButtonStates.normal;
base.onMouseLeave (sender, e);
}
#endregion
#region IXmlSerializable
public override System.Xml.Schema.XmlSchema GetSchema()
{
return null;
}
public override void ReadXml(System.Xml.XmlReader reader)
{
string handler = reader.GetAttribute("OnClick");
Interface.EventsToResolve.Add(new EventSource
{
Source = this,
Handler = handler,
EventName = "OnClick"
});
//Container c = this as Container;
base.ReadXml(reader);
}
public override void WriteXml(System.Xml.XmlWriter writer)
{
if (Click != null)
{
writer.WriteAttributeString("OnClick", Click.Method.Name);
}
base.WriteXml(writer);
}
#endregion
}
}
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