CraftSynth.ImageEditor – Rev 1
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using System;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Globalization;
using System.Runtime.Serialization;
using System.Windows.Forms;
namespace CraftSynth.ImageEditor
{
/// <summary>
/// Rectangle graphic object
/// </summary>
[Serializable]
public class DrawRectangle : DrawObject
{
private Rectangle rectangle;
private const string entryRectangle = "Rect";
protected Rectangle Rectangle
{
get { return rectangle; }
set { rectangle = value; }
}
/// <summary>
/// Clone this instance
/// </summary>
public override DrawObject Clone()
{
DrawRectangle drawRectangle = new DrawRectangle();
drawRectangle.rectangle = rectangle;
FillDrawObjectFields(drawRectangle);
return drawRectangle;
}
public DrawRectangle()
{
SetRectangle(0, 0, 1, 1);
}
#region Destruction
private bool _disposed = false;
protected override void Dispose(bool disposing)
{
if (!this._disposed)
{
if (disposing)
{
// Free any managed objects here.
}
// Free any unmanaged objects here.
this._disposed = true;
}
base.Dispose(disposing);
}
~DrawRectangle()
{
this.Dispose(false);
}
#endregion
public DrawRectangle(int x, int y, int width, int height, Color lineColor, Color fillColor, bool filled, int lineWidth, DrawingPens.PenType penType, LineCap endCap)
{
Center = new Point(x + (width / 2), y + (height / 2));
rectangle.X = x;
rectangle.Y = y;
rectangle.Width = width;
rectangle.Height = height;
Color = lineColor;
FillColor = fillColor;
Filled = filled;
PenWidth = lineWidth;
EndCap = endCap;
PenType = penType;
TipText = String.Format("Rectangle Center @ {0}, {1}", Center.X, Center.Y);
}
/// <summary>
/// Draw rectangle
/// </summary>
/// <param name="g"></param>
public override void Draw(Graphics g)
{
Pen pen;
Brush b = new SolidBrush(FillColor);
if (DrawPen == null)
{
pen = new Pen(Color, PenWidth);
DrawingPens.SetCurrentPen(ref pen, PenType, EndCap);
}
else
pen = (Pen) DrawPen.Clone();
GraphicsPath gp = new GraphicsPath();
gp.AddRectangle(GetNormalizedRectangle(Rectangle));
// Rotate the path about it's center if necessary
if (Rotation != 0)
{
RectangleF pathBounds = gp.GetBounds();
Matrix m = new Matrix();
m.RotateAt(Rotation, new PointF(pathBounds.Left + (pathBounds.Width / 2), pathBounds.Top + (pathBounds.Height / 2)), MatrixOrder.Append);
gp.Transform(m);
}
if (Filled) g.FillPath(b, gp);
g.DrawPath(pen, gp);
gp.Dispose();
pen.Dispose();
b.Dispose();
}
protected void SetRectangle(int x, int y, int width, int height)
{
rectangle.X = x;
rectangle.Y = y;
rectangle.Width = width;
rectangle.Height = height;
}
/// <summary>
/// Get number of handles
/// </summary>
public override int HandleCount
{
get { return 8; }
}
/// <summary>
/// Get number of connection points
/// </summary>
public override int ConnectionCount
{
get { return HandleCount; }
}
public override Point GetConnection(int connectionNumber)
{
return GetHandle(connectionNumber);
}
/// <summary>
/// Get handle point by 1-based number
/// </summary>
/// <param name="handleNumber"></param>
/// <returns></returns>
public override Point GetHandle(int handleNumber)
{
int x, y, xCenter, yCenter;
xCenter = rectangle.X + rectangle.Width / 2;
yCenter = rectangle.Y + rectangle.Height / 2;
x = rectangle.X;
y = rectangle.Y;
switch (handleNumber)
{
case 1:
x = rectangle.X;
y = rectangle.Y;
break;
case 2:
x = xCenter;
y = rectangle.Y;
break;
case 3:
x = rectangle.Right;
y = rectangle.Y;
break;
case 4:
x = rectangle.Right;
y = yCenter;
break;
case 5:
x = rectangle.Right;
y = rectangle.Bottom;
break;
case 6:
x = xCenter;
y = rectangle.Bottom;
break;
case 7:
x = rectangle.X;
y = rectangle.Bottom;
break;
case 8:
x = rectangle.X;
y = yCenter;
break;
}
return new Point(x, y);
}
/// <summary>
/// Hit test.
/// Return value: -1 - no hit
/// 0 - hit anywhere
/// > 1 - handle number
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public override int HitTest(Point point)
{
if (Selected)
{
for (int i = 1; i <= HandleCount; i++)
{
if (GetHandleRectangle(i).Contains(point))
return i;
}
}
if (PointInObject(point))
return 0;
return -1;
}
protected override bool PointInObject(Point point)
{
return rectangle.Contains(point);
}
public override Rectangle GetBounds(Graphics g)
{
return rectangle;
}
/// <summary>
/// Get cursor for the handle
/// </summary>
/// <param name="handleNumber"></param>
/// <returns></returns>
public override Cursor GetHandleCursor(int handleNumber)
{
switch (handleNumber)
{
case 1:
return Cursors.SizeNWSE;
case 2:
return Cursors.SizeNS;
case 3:
return Cursors.SizeNESW;
case 4:
return Cursors.SizeWE;
case 5:
return Cursors.SizeNWSE;
case 6:
return Cursors.SizeNS;
case 7:
return Cursors.SizeNESW;
case 8:
return Cursors.SizeWE;
default:
return Cursors.Default;
}
}
/// <summary>
/// Move handle to new point (resizing)
/// </summary>
/// <param name="point"></param>
/// <param name="handleNumber"></param>
public override void MoveHandleTo(Point point, int handleNumber)
{
int left = Rectangle.Left;
int top = Rectangle.Top;
int right = Rectangle.Right;
int bottom = Rectangle.Bottom;
switch (handleNumber)
{
case 1:
left = point.X;
top = point.Y;
break;
case 2:
top = point.Y;
break;
case 3:
right = point.X;
top = point.Y;
break;
case 4:
right = point.X;
break;
case 5:
right = point.X;
bottom = point.Y;
break;
case 6:
bottom = point.Y;
break;
case 7:
left = point.X;
bottom = point.Y;
break;
case 8:
left = point.X;
break;
}
Dirty = true;
SetRectangle(left, top, right - left, bottom - top);
}
public override bool IntersectsWith(Rectangle rectangle)
{
return Rectangle.IntersectsWith(rectangle);
}
/// <summary>
/// Move object
/// </summary>
/// <param name="deltaX"></param>
/// <param name="deltaY"></param>
public override void Move(int deltaX, int deltaY)
{
rectangle.X += deltaX;
rectangle.Y += deltaY;
Dirty = true;
}
public override void Dump()
{
base.Dump();
Trace.WriteLine("rectangle.X = " + rectangle.X.ToString(CultureInfo.InvariantCulture));
Trace.WriteLine("rectangle.Y = " + rectangle.Y.ToString(CultureInfo.InvariantCulture));
Trace.WriteLine("rectangle.Width = " + rectangle.Width.ToString(CultureInfo.InvariantCulture));
Trace.WriteLine("rectangle.Height = " + rectangle.Height.ToString(CultureInfo.InvariantCulture));
}
/// <summary>
/// Normalize rectangle
/// </summary>
public override void Normalize()
{
rectangle = GetNormalizedRectangle(rectangle);
}
/// <summary>
/// Save objevt to serialization stream
/// </summary>
/// <param name="info">Contains all data being written to disk</param>
/// <param name="orderNumber">Index of the Layer being saved</param>
/// <param name="objectIndex">Index of the drawing object in the Layer</param>
public override void SaveToStream(SerializationInfo info, int orderNumber, int objectIndex)
{
info.AddValue(
String.Format(CultureInfo.InvariantCulture,
"{0}{1}-{2}",
entryRectangle, orderNumber, objectIndex),
rectangle);
base.SaveToStream(info, orderNumber, objectIndex);
}
/// <summary>
/// LOad object from serialization stream
/// </summary>
/// <param name="info"></param>
/// <param name="orderNumber"></param>
/// <param name="objectIndex"></param>
public override void LoadFromStream(SerializationInfo info, int orderNumber, int objectIndex)
{
rectangle = (Rectangle)info.GetValue(
String.Format(CultureInfo.InvariantCulture,
"{0}{1}-{2}",
entryRectangle, orderNumber, objectIndex),
typeof(Rectangle));
base.LoadFromStream(info, orderNumber, objectIndex);
}
#region Helper Functions
public static Rectangle GetNormalizedRectangle(int x1, int y1, int x2, int y2)
{
if (x2 < x1)
{
int tmp = x2;
x2 = x1;
x1 = tmp;
}
if (y2 < y1)
{
int tmp = y2;
y2 = y1;
y1 = tmp;
}
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
}
public static Rectangle GetNormalizedRectangle(Point p1, Point p2)
{
return GetNormalizedRectangle(p1.X, p1.Y, p2.X, p2.Y);
}
public static Rectangle GetNormalizedRectangle(Rectangle r)
{
return GetNormalizedRectangle(r.X, r.Y, r.X + r.Width, r.Y + r.Height);
}
#endregion Helper Functions
}
}
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