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"Merged" 0.8 with HEAD, so we can continue developing

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1282 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
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RKrom 2011-07-17 12:05:59 +00:00
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Greenshot/Drawing/ArrowContainer.cs Normal file
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/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2011 Thomas Braun, Jens Klingen, Robin Krom
*
* For more information see: http://getgreenshot.org/
* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
*
* 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 1 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, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Runtime.Serialization;
using System.Windows.Forms;
using Greenshot.Configuration;
using Greenshot.Drawing.Fields;
using Greenshot.Helpers;
using Greenshot.Plugin.Drawing;
namespace Greenshot.Drawing {
/// <summary>
/// Description of LineContainer.
/// </summary>
[Serializable()]
public class ArrowContainer : LineContainer {
public enum ArrowHeadCombination { NONE, START_POINT, END_POINT, BOTH };
private static readonly AdjustableArrowCap ARROW_CAP = new AdjustableArrowCap(4, 6);
public ArrowContainer(Surface parent) : base(parent) {
AddField(GetType(), FieldType.ARROWHEADS, 2);
AddField(GetType(), FieldType.LINE_COLOR, Color.Red);
AddField(GetType(), FieldType.FILL_COLOR, Color.Transparent);
AddField(GetType(), FieldType.SHADOW, false);
AddField(GetType(), FieldType.ARROWHEADS, Greenshot.Drawing.ArrowContainer.ArrowHeadCombination.END_POINT);
}
public override void Draw(Graphics g, RenderMode rm) {
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
Color lineColor = GetFieldValueAsColor(FieldType.LINE_COLOR);
bool shadow = GetFieldValueAsBool(FieldType.SHADOW);
ArrowHeadCombination heads = (ArrowHeadCombination)GetFieldValue(FieldType.ARROWHEADS);;
if ( shadow && lineThickness > 0 ) {
//draw shadow first
int basealpha = 100;
int alpha = basealpha;
int steps = 5;
int currentStep = 1;
while ( currentStep <= steps ) {
using (Pen shadowCapPen = new Pen(Color.FromArgb(alpha, 100, 100, 100))) {
shadowCapPen.Width = lineThickness;
if ( heads == ArrowHeadCombination.BOTH || heads == ArrowHeadCombination.START_POINT ) shadowCapPen.CustomStartCap = ARROW_CAP;
if ( heads == ArrowHeadCombination.BOTH || heads == ArrowHeadCombination.END_POINT ) shadowCapPen.CustomEndCap = ARROW_CAP;
g.DrawLine(shadowCapPen,
this.Left + currentStep,
this.Top + currentStep,
this.Left + currentStep + this.Width,
this.Top + currentStep + this.Height);
currentStep++;
alpha = alpha - (basealpha / steps);
}
}
}
using (Pen pen = new Pen(lineColor)) {
pen.Width = lineThickness;
if ( pen.Width > 0 ) {
if ( heads == ArrowHeadCombination.BOTH || heads == ArrowHeadCombination.START_POINT ) pen.CustomStartCap = ARROW_CAP;
if ( heads == ArrowHeadCombination.BOTH || heads == ArrowHeadCombination.END_POINT ) pen.CustomEndCap = ARROW_CAP;
g.DrawLine(pen, this.Left, this.Top, this.Left + this.Width, this.Top + this.Height);
}
}
}
public override Rectangle DrawingBounds {
get {
int lineThickness = 0;
if (HasField(FieldType.LINE_THICKNESS)) {
lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
}
int arrowCapWidth = 0;
int arrowCapHeight = 0;
if (HasField(FieldType.ARROWHEADS)) {
ArrowHeadCombination heads = (ArrowHeadCombination)GetFieldValue(FieldType.ARROWHEADS);
if(heads.Equals(ArrowHeadCombination.START_POINT) || heads.Equals(ArrowHeadCombination.END_POINT) || heads.Equals(ArrowHeadCombination.BOTH)) {
arrowCapWidth = (int)ARROW_CAP.Width * lineThickness;
arrowCapHeight = (int)ARROW_CAP.Height * lineThickness;
}
}
int offset = Math.Max(lineThickness/2, Math.Max(arrowCapWidth, arrowCapHeight));
return new Rectangle(Bounds.Left-offset, Bounds.Top-offset, Bounds.Width+offset*2, Bounds.Height+offset*2);
}
}
public override bool ClickableAt(int x, int y) {
bool ret = false;
ret = base.ClickableAt(x, y);
if(!ret) {
// line has not been clicked, check arrow heads
ArrowHeadCombination heads = (ArrowHeadCombination)GetFieldValue(FieldType.ARROWHEADS);
if(!ArrowHeadCombination.NONE.Equals(heads)) {
int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
double arrowCapHalfWidth = ARROW_CAP.Width * lineThickness / 2;
double arrowCapHeight = ARROW_CAP.Height * lineThickness;
// we have to check only if arrow heads are wider than tolerated area of LineContainer
if(arrowCapHalfWidth > MAX_CLICK_DISTANCE_TOLERANCE) {
double mouseToLineDist = DrawingHelper.CalculateLinePointDistance(Left, Top, Left+Width, Top+Height, x, y);
if(mouseToLineDist > -1) { // point next to line at all?
if(heads.Equals(ArrowHeadCombination.END_POINT) || heads.Equals(ArrowHeadCombination.BOTH)) {
// calculate a perpendicular line at arrow tip to hittest arrow head easily
int p1x = Left + Width + Height;
int p1y = Top + Height - Width;
int p2x = Left + Width - Height;
int p2y = Top + Height + Width;
double mouseToPerpDist = DrawingHelper.CalculateLinePointDistance(p1x,p1y,p2x,p2y, x, y);
if(
// point located within rectangular area of width/height of arrowhead?
mouseToLineDist <= arrowCapHalfWidth
&& mouseToPerpDist <= arrowCapHeight
// point located within arrowhead? (nearer to line than to perp * w/h-factor)
&& mouseToLineDist < mouseToPerpDist * arrowCapHalfWidth / arrowCapHeight) {
return true;
}
}
if(heads.Equals(ArrowHeadCombination.START_POINT) || heads.Equals(ArrowHeadCombination.BOTH)) {
// calculate a perpendicular line at arrow tip to hittest arrow head easily
int p1x = Left - Height;
int p1y = Top + Width;
int p2x = Left + Height;
int p2y = Top - Width;
double mouseToPerpDist = DrawingHelper.CalculateLinePointDistance(p1x,p1y,p2x,p2y, x, y);
if(
// point located within rectangular area of width/height of arrowhead?
mouseToLineDist <= arrowCapHalfWidth
&& mouseToPerpDist <= arrowCapHeight
// point located within arrowhead? (nearer to line than to perp * w/h-factor)
&& mouseToLineDist < mouseToPerpDist * arrowCapHalfWidth / arrowCapHeight) {
return true;
}
}
}
}
}
}
return ret;
/*int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
double distance = DrawingHelper.CalculateLinePointDistance(this.Left, this.Top, this.Left + this.Width, this.Top + this.Height, x, y);
if (distance < 0) {
return false;
}
return distance <= Math.Max(lineThickness / 2, 10);*/
}
}
}