#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (C) 2008-2013 ShareX Developers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at .
*/
#endregion License Information (GPL v3)
using HelpersLib;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Windows.Forms;
namespace ScreenCapture
{
public class PolygonRegion : Surface
{
private List nodes;
private bool isAreaCreated;
private Rectangle currentArea;
public PolygonRegion(Image backgroundImage = null)
: base(backgroundImage)
{
nodes = new List();
MouseDown += PolygonRegionSurface_MouseDown;
}
private void PolygonRegionSurface_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (DrawableObjects.Cast().Any(node => node.IsMouseHover || node.IsDragging))
{
return;
}
if (nodes.Count == 0)
{
CreateNode();
}
CreateNode();
isAreaCreated = true;
}
else if (e.Button == MouseButtons.Right)
{
if (isAreaCreated)
{
foreach (NodeObject node in nodes)
{
if (node.IsMouseHover)
{
nodes.Remove(node);
DrawableObjects.Remove(node);
return;
}
}
isAreaCreated = false;
nodes.Clear();
DrawableObjects.Clear();
}
else
{
Close(SurfaceResult.Close);
}
}
}
protected override void Update()
{
base.Update();
for (int i = nodes.Count - 1; i >= 0; i--)
{
if (nodes[i].Visible && nodes[i].IsDragging)
{
ActivateNode(nodes[i]);
break;
}
}
if (nodes.Count > 2)
{
RectangleF rect = regionFillPath.GetBounds();
currentArea = new Rectangle((int)rect.X, (int)rect.Y, (int)rect.Width + 1, (int)rect.Height + 1);
}
}
protected override void Draw(Graphics g)
{
g.SmoothingMode = SmoothingMode.HighQuality;
borderDotPen.DashOffset = (float)timer.Elapsed.TotalSeconds * 10;
borderDotPen2.DashOffset = 5 + (float)timer.Elapsed.TotalSeconds * 10;
regionFillPath = new GraphicsPath();
for (int i = 0; i < nodes.Count - 1; i++)
{
regionFillPath.AddLine(nodes[i].Position, nodes[i + 1].Position);
}
if (nodes.Count > 2)
{
regionFillPath.CloseFigure();
using (Region region = new Region(regionFillPath))
{
g.Clip = region;
g.FillRectangle(lightBackgroundBrush, ScreenRectangle0Based);
g.ResetClip();
}
g.DrawRectangleProper(borderPen, currentArea);
}
if (nodes.Count > 1)
{
g.DrawPath(borderDotPen, regionFillPath);
g.DrawPath(borderDotPen2, regionFillPath);
}
base.Draw(g);
}
private void CreateNode()
{
NodeObject newNode = new NodeObject();
ActivateNode(newNode);
nodes.Add(newNode);
DrawableObjects.Add(newNode);
}
private void ActivateNode(NodeObject node)
{
node.Position = InputManager.MousePosition0Based;
node.Visible = true;
node.IsDragging = true;
}
}
}