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git-svn-id: https://lsleditor.svn.sourceforge.net/svnroot/lsleditor@1 3f4676ac-adda-40fd-8265-58d1435b1672
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dimentox 2010-04-29 03:23:31 +00:00
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Editor/RoundCorners.cs Normal file
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using System;
//Author: Arman Ghazanchyan
//Created date: 01/27/2007
//Last updated: 01/28/2007
using System.Drawing;
using System.Drawing.Drawing2D;
namespace LSLEditor.Editor
{
class RoundCorners
{
///<summary>
/// Rounds a rectangle corners' and returns the graphics path.
/// </summary>
/// <param name="rec">A rectangle whose corners should be rounded.</param>
/// <param name="r">The radius of the rounded corners. This value should be
/// bigger then 0 and less or equal to the (a half of the smallest value
/// of the rectangle’s width and height).</param>
/// <param name="exclude_TopLeft">A value that specifies if the top-left
/// corner of the rectangle should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
/// <param name="exclude_TopRight">A value that specifies if the top-right
/// corner of the rectangle should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
/// <param name="exclude_BottomRight">A value that specifies if the bottom-right
/// corner of the rectangle should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
/// <param name="exclude_BottomLeft">A value that specifies if the bottom-left
/// corner of the rectangle should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
public static GraphicsPath RoundedRectangle(Rectangle rec, int r)
{
return RoundedRectangle(rec,r,false,false,false,false);
}
public static GraphicsPath RoundedRectangle(Rectangle rec, int r,
bool exclude_TopLeft,
bool exclude_TopRight,
bool exclude_BottomRight,
bool exclude_BottomLeft)
{
GraphicsPath path = new GraphicsPath();
int s = r * 2;
//If 's' is less than or equal to zero,
//then return a simple rectangle.
if (s <= 0)
{
path.StartFigure();
path.AddLine(rec.Right, rec.Y, rec.Right, rec.Y);
path.AddLine(rec.Right, rec.Bottom, rec.Right, rec.Bottom);
path.AddLine(rec.X, rec.Bottom, rec.X, rec.Bottom);
path.AddLine(rec.X, rec.Y, rec.X, rec.Y);
path.CloseAllFigures();
return path;
}
//If 's' is bigger than the smallest value of the size,
//then assign the value to 's'.
if (rec.Height <= rec.Width)
{
if (s > rec.Height)
s = rec.Height;
}
else
{
if (s > rec.Width)
s = rec.Width;
}
path.StartFigure();
//Set top-right corner.
if (!exclude_TopRight)
path.AddArc(rec.Right - s, rec.Y, s, s, 270, 90);
else
path.AddLine(rec.Right, rec.Y, rec.Right, rec.Y);
//Set bottom-right corner.
if (!exclude_BottomRight)
path.AddArc(rec.Right - s, rec.Bottom - s, s, s, 0, 90);
else
path.AddLine(rec.Right, rec.Bottom, rec.Right, rec.Bottom);
//Set bottom-left corner.
if (!exclude_BottomLeft)
path.AddArc(rec.X, rec.Bottom - s, s, s, 90, 90);
else
path.AddLine(rec.X, rec.Bottom, rec.X, rec.Bottom);
//Set top-left corner.
if (!exclude_TopLeft)
path.AddArc(rec.X, rec.Y, s, s, 180, 90);
else
path.AddLine(rec.X, rec.Y, rec.X, rec.Y);
path.CloseAllFigures();
return path;
}
/// <summary>
/// Rounds the corners of the newly created rectangle-shape region and returns the region.
/// </summary>
/// <param name="rSize">The size of the region.</param>
/// <param name="r">The radius of the rounded corners. This value should be
/// bigger then 0 and less or equal to the (a half of the smallest value
/// of the region’s width and height).</param>
/// <param name="exclude_TopLeft">A value that specifies if the top-left
/// corner of the region should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
/// <param name="exclude_TopRight">A value that specifies if the top-right
/// corner of the region should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
/// <param name="exclude_BottomRight">A value that specifies if the bottom-right
/// corner of the region should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
/// <param name="exclude_BottomLeft">A value that specifies if the bottom-left
/// corner of the region should be rounded. If the value is True
/// then the corner is not rounded otherwise it is.</param>
public static Region RoundedRegion(Size rSize, int r)
{
return RoundedRegion(rSize, r, false, false, false, false);
}
public static Region RoundedRegion(Size rSize, int r,
bool exclude_TopLeft,
bool exclude_TopRight,
bool exclude_BottomRight,
bool exclude_BottomLeft)
{
int s = r * 2;
GraphicsPath path = new GraphicsPath();
//If 's' is less than or equal to zero,
//then return a simple rectangle.
if (s <= 0)
{
path.StartFigure();
path.AddLine(rSize.Width, 0, rSize.Width, 0);
path.AddLine(rSize.Width, rSize.Height, rSize.Width, rSize.Height);
path.AddLine(0, rSize.Height, 0, rSize.Height);
path.AddLine(0, 0, 0, 0);
path.CloseAllFigures();
return new Region(path);
}
//If 's' is bigger than the smallest value of the size,
//then assign the value to 's'.
if (rSize.Height < rSize.Width)
{
if (s > rSize.Height)
s = rSize.Height;
}
else
{
if (s > rSize.Width)
s = rSize.Width;
}
path.StartFigure();
//Set top-right corner.
if (!exclude_TopRight)
path.AddArc(rSize.Width - s, 0, s - 1, s - 1, 270, 90);
else
path.AddLine(rSize.Width, 0, rSize.Width, 0);
//Set bottom-right corner.
if (!exclude_BottomRight)
{
path.AddLine(rSize.Width, r, rSize.Width, rSize.Height - r);
path.AddArc(rSize.Width - s, rSize.Height - s, s - 1, s - 1, 0, 90);
}
else
path.AddLine(rSize.Width, rSize.Height, rSize.Width, rSize.Height);
//Set bottom-left corner.
if (!exclude_BottomLeft)
{
path.AddLine(rSize.Width - r, rSize.Height, r, rSize.Height);
path.AddArc(0, rSize.Height - s, s - 1, s - 1, 90, 90);
}
else
path.AddLine(0, rSize.Height, 0, rSize.Height);
//Set top-left corner.
if (!exclude_TopLeft)
path.AddArc(0, 0, s - 1, s - 1, 180, 90);
else
path.AddLine(0, 0, 0, 0);
path.CloseAllFigures();
return new Region(path);
}
}
}