2014-09-20 03:50:11 +12:00
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/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2014 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using Greenshot.Drawing.Fields;
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using Greenshot.Helpers;
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using Greenshot.Plugin;
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using Greenshot.Plugin.Drawing;
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Text;
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using System.Runtime.Serialization;
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using System.Windows.Forms;
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namespace Greenshot.Drawing
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{
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/// <summary>
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/// Description of SpeechbubbleContainer.
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/// </summary>
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[Serializable]
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public class SpeechbubbleContainer : TextContainer
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{
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#region TargetGripper serializing code
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// Only used for serializing the TargetGripper location
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private Point _storedTargetGripperLocation;
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/// <summary>
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/// Store the current location of the target gripper
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/// </summary>
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/// <param name="context"></param>
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[OnSerializing]
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private void SetValuesOnSerializing(StreamingContext context)
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{
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if (TargetGripper != null)
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{
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_storedTargetGripperLocation = TargetGripper.Location;
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}
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}
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/// <summary>
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/// Restore the target gripper
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/// </summary>
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/// <param name="context"></param>
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[OnDeserialized]
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private void SetValuesOnDeserialized(StreamingContext context)
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{
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InitTargetGripper(Color.Yellow, _storedTargetGripperLocation);
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2014-09-20 03:50:11 +12:00
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}
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#endregion TargetGripper serializing code
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public SpeechbubbleContainer(Surface parent)
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: base(parent)
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{
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}
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/// <summary>
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/// We set our own field values
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/// </summary>
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protected override void InitializeFields()
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{
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AddField(GetType(), FieldType.LINE_THICKNESS, 2);
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AddField(GetType(), FieldType.LINE_COLOR, DefaultLineColor);
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AddField(GetType(), FieldType.SHADOW, false);
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AddField(GetType(), FieldType.FONT_ITALIC, false);
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AddField(GetType(), FieldType.FONT_BOLD, false);
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AddField(GetType(), FieldType.FILL_COLOR, Color.White);
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AddField(GetType(), FieldType.FONT_FAMILY, FontFamily.GenericSansSerif.Name);
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AddField(GetType(), FieldType.FONT_SIZE, 20f);
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AddField(GetType(), FieldType.TEXT_HORIZONTAL_ALIGNMENT, StringAlignment.Center);
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AddField(GetType(), FieldType.TEXT_VERTICAL_ALIGNMENT, VerticalAlignment.CENTER);
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}
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protected override void TargetGripperMove(int absX, int absY)
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{
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base.TargetGripperMove(absX, absY);
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Invalidate();
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}
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/// <summary>
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/// Called from Surface (the _parent) when the drawing begins (mouse-down)
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/// </summary>
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/// <returns>true if the surface doesn't need to handle the event</returns>
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public override bool HandleMouseDown(int mouseX, int mouseY)
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{
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if (TargetGripper == null)
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{
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InitTargetGripper(Color.Yellow, new Point(mouseX, mouseY));
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}
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return base.HandleMouseDown(mouseX + 20, mouseY + 20);
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}
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public override Rectangle DrawingBounds
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{
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get
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{
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// TODO: Use the normal bounds and extend with the TargetGripper
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return new Rectangle(0, 0, _parent.Width, _parent.Height);
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}
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}
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public override void Draw(Graphics graphics, RenderMode renderMode)
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{
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if (TargetGripper == null)
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{
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return;
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}
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graphics.SmoothingMode = SmoothingMode.HighQuality;
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graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
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graphics.CompositingQuality = CompositingQuality.HighQuality;
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graphics.PixelOffsetMode = PixelOffsetMode.None;
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graphics.TextRenderingHint = TextRenderingHint.SystemDefault;
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Color lineColor = GetFieldValueAsColor(FieldType.LINE_COLOR);
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Color fillColor = GetFieldValueAsColor(FieldType.FILL_COLOR);
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
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bool lineVisible = (lineThickness > 0 && Colors.IsVisible(lineColor));
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Rectangle rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
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if (Selected && renderMode == RenderMode.EDIT)
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{
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DrawSelectionBorder(graphics, rect);
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}
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int tailAngle = 90 + (int)GeometryHelper.Angle2D(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2), TargetGripper.Left, TargetGripper.Top);
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int tailLength = GeometryHelper.Distance2D(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2), TargetGripper.Left, TargetGripper.Top);
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int tailWidth = (Math.Abs(rect.Width) + Math.Abs(rect.Height)) / 20;
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GraphicsPath bubble = new GraphicsPath();
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Rectangle bubbleRect = GuiRectangle.GetGuiRectangle(0, 0, rect.Width, rect.Height);
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// adapt corner radius to small rectangle dimensions
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int smallerSideLength = Math.Min(bubbleRect.Width, bubbleRect.Height);
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int cornerRadius = Math.Min(30, smallerSideLength / 2 - lineThickness);
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if (cornerRadius > 0)
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{
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bubble.AddArc(bubbleRect.X, bubbleRect.Y, cornerRadius, cornerRadius, 180, 90);
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bubble.AddArc(bubbleRect.X + bubbleRect.Width - cornerRadius, bubbleRect.Y, cornerRadius, cornerRadius, 270, 90);
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bubble.AddArc(bubbleRect.X + bubbleRect.Width - cornerRadius, bubbleRect.Y + bubbleRect.Height - cornerRadius, cornerRadius, cornerRadius, 0, 90);
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bubble.AddArc(bubbleRect.X, bubbleRect.Y + bubbleRect.Height - cornerRadius, cornerRadius, cornerRadius, 90, 90);
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}
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else
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{
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bubble.AddRectangle(bubbleRect);
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}
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bubble.CloseAllFigures();
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GraphicsPath tail = new GraphicsPath();
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tail.AddLine(-tailWidth, 0, tailWidth, 0);
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tail.AddLine(tailWidth, 0, 0, -tailLength);
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tail.CloseFigure();
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GraphicsState state = graphics.Save();
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// draw the tail border where the bubble is not visible
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using (Region clipRegion = new Region(bubble))
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{
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clipRegion.Translate(rect.Left, rect.Top);
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graphics.SetClip(clipRegion, CombineMode.Exclude);
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graphics.TranslateTransform(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
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graphics.RotateTransform(tailAngle);
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using (Pen pen = new Pen(lineColor, lineThickness))
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{
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graphics.DrawPath(pen, tail);
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}
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}
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graphics.Restore(state);
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if (Colors.IsVisible(fillColor))
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{
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//draw the bubbleshape
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state = graphics.Save();
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graphics.TranslateTransform(rect.Left, rect.Top);
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using (Brush brush = new SolidBrush(fillColor))
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{
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graphics.FillPath(brush, bubble);
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}
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graphics.Restore(state);
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}
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if (lineVisible)
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{
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//draw the bubble border
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state = graphics.Save();
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// Draw bubble where the Tail is not visible.
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using (Region clipRegion = new Region(tail))
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{
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using (Matrix transformMatrix = new Matrix())
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{
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transformMatrix.Rotate(tailAngle);
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clipRegion.Transform(transformMatrix);
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}
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clipRegion.Translate(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
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graphics.SetClip(clipRegion, CombineMode.Exclude);
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graphics.TranslateTransform(rect.Left, rect.Top);
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using (Pen pen = new Pen(lineColor, lineThickness))
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{
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//pen.EndCap = pen.StartCap = LineCap.Round;
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graphics.DrawPath(pen, bubble);
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}
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}
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graphics.Restore(state);
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}
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if (Colors.IsVisible(fillColor))
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{
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// Draw the tail border
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state = graphics.Save();
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graphics.TranslateTransform(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
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graphics.RotateTransform(tailAngle);
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using (Brush brush = new SolidBrush(fillColor))
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{
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graphics.FillPath(brush, tail);
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}
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graphics.Restore(state);
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}
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// cleanup the paths
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bubble.Dispose();
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tail.Dispose();
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// Draw the text
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UpdateFormat();
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DrawText(graphics, rect, lineThickness, lineColor, false, StringFormat, Text, Font);
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}
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/*public override bool Contains(int x, int y)
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{
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double xDistanceFromCenter = x - (Left + Width / 2);
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double yDistanceFromCenter = y - (Top + Height / 2);
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// ellipse: x^2/a^2 + y^2/b^2 = 1
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return Math.Pow(xDistanceFromCenter, 2) / Math.Pow(Width / 2, 2) + Math.Pow(yDistanceFromCenter, 2) / Math.Pow(Height / 2, 2) < 1;
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}
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public override bool ClickableAt(int x, int y)
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{
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Rectangle rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
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int lineThicknessPlusSafety = lineThickness + 10;
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// If we clicked inside the rectangle and it's visible we are clickable at.
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Color fillColor = GetFieldValueAsColor(FieldType.FILL_COLOR);
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if (!Color.Transparent.Equals(fillColor))
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{
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if (Contains(x, y))
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{
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return true;
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}
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}
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// check the rest of the lines
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if (lineThicknessPlusSafety > 0)
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{
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using (Pen pen = new Pen(Color.White, lineThicknessPlusSafety))
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{
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using (GraphicsPath path = new GraphicsPath())
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{
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path.AddEllipse(rect);
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return path.IsOutlineVisible(x, y, pen);
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}
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}
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}
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else
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{
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return false;
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}
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}*/
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}
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}
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