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https://github.com/greenshot/greenshot.git
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115 lines
4.0 KiB
C#
115 lines
4.0 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2020 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 GitHub https://github.com/greenshot/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 System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Runtime.Serialization;
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using Greenshot.Drawing.Fields;
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using Greenshot.Helpers;
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using Greenshot.Drawing.Adorners;
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using GreenshotPlugin.Interfaces.Drawing;
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namespace Greenshot.Drawing {
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/// <summary>
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/// Description of LineContainer.
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/// </summary>
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[Serializable()]
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public class LineContainer : DrawableContainer {
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public static readonly int MAX_CLICK_DISTANCE_TOLERANCE = 10;
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public LineContainer(Surface parent) : base(parent) {
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Init();
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}
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protected override void InitializeFields() {
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AddField(GetType(), FieldType.LINE_THICKNESS, 2);
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AddField(GetType(), FieldType.LINE_COLOR, Color.Red);
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AddField(GetType(), FieldType.SHADOW, true);
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}
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protected override void OnDeserialized(StreamingContext context)
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{
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Init();
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}
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protected void Init() {
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Adorners.Add(new MoveAdorner(this, Positions.TopLeft));
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Adorners.Add(new MoveAdorner(this, Positions.BottomRight));
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}
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public override void Draw(Graphics graphics, RenderMode rm) {
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graphics.SmoothingMode = SmoothingMode.HighQuality;
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graphics.InterpolationMode = InterpolationMode.HighQualityBilinear;
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graphics.CompositingQuality = CompositingQuality.HighQuality;
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graphics.PixelOffsetMode = PixelOffsetMode.None;
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
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Color lineColor = GetFieldValueAsColor(FieldType.LINE_COLOR);
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bool shadow = GetFieldValueAsBool(FieldType.SHADOW);
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if (lineThickness > 0) {
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if (shadow) {
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//draw shadow first
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int basealpha = 100;
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int alpha = basealpha;
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int steps = 5;
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int currentStep = 1;
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while (currentStep <= steps)
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{
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using Pen shadowCapPen = new Pen(Color.FromArgb(alpha, 100, 100, 100), lineThickness);
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graphics.DrawLine(shadowCapPen,
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Left + currentStep,
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Top + currentStep,
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Left + currentStep + Width,
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Top + currentStep + Height);
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currentStep++;
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alpha -= basealpha / steps;
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}
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}
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using Pen pen = new Pen(lineColor, lineThickness);
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graphics.DrawLine(pen, Left, Top, Left + Width, Top + Height);
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}
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}
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public override bool ClickableAt(int x, int y) {
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int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS) +5;
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if (lineThickness > 0)
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{
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using Pen pen = new Pen(Color.White)
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{
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Width = lineThickness
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};
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using GraphicsPath path = new GraphicsPath();
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path.AddLine(Left, Top, Left + Width, Top + Height);
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return path.IsOutlineVisible(x, y, pen);
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}
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return false;
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}
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protected override ScaleHelper.IDoubleProcessor GetAngleRoundProcessor() {
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return ScaleHelper.LineAngleRoundBehavior.Instance;
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}
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}
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}
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