/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2015 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 .
*/
using Greenshot.Drawing.Fields;
using Greenshot.Helpers;
using Greenshot.Plugin.Drawing;
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
namespace Greenshot.Drawing
{
///
/// empty container for filter-only elements
///
[Serializable()]
public abstract class FilterContainer : DrawableContainer
{
public enum PreparedFilterMode { OBFUSCATE, HIGHLIGHT };
public enum PreparedFilter { BLUR, PIXELIZE, TEXT_HIGHTLIGHT, AREA_HIGHLIGHT, GRAYSCALE, MAGNIFICATION };
public PreparedFilter Filter
{
get { return (PreparedFilter)GetFieldValue(FieldType.PREPARED_FILTER_HIGHLIGHT); }
}
public FilterContainer(Surface parent) : base(parent)
{
}
protected override void InitializeFields()
{
AddField(GetType(), FieldType.LINE_THICKNESS, 0);
AddField(GetType(), FieldType.LINE_COLOR, Color.Red);
AddField(GetType(), FieldType.SHADOW, false);
}
public override void Draw(Graphics graphics, RenderMode rm)
{
int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
Color lineColor = GetFieldValueAsColor(FieldType.LINE_COLOR);
bool shadow = GetFieldValueAsBool(FieldType.SHADOW);
bool lineVisible = (lineThickness > 0 && Colors.IsVisible(lineColor));
if (lineVisible)
{
graphics.SmoothingMode = SmoothingMode.HighSpeed;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.PixelOffsetMode = PixelOffsetMode.None;
//draw shadow first
if (shadow)
{
int basealpha = 100;
int alpha = basealpha;
int steps = 5;
int currentStep = lineVisible ? 1 : 0;
while (currentStep <= steps)
{
using (Pen shadowPen = new Pen(Color.FromArgb(alpha, 100, 100, 100), lineThickness))
{
Rectangle shadowRect = GuiRectangle.GetGuiRectangle(Left + currentStep, Top + currentStep, Width, Height);
graphics.DrawRectangle(shadowPen, shadowRect);
currentStep++;
alpha = alpha - (basealpha / steps);
}
}
}
Rectangle rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
if (lineThickness > 0)
{
using (Pen pen = new Pen(lineColor, lineThickness))
{
graphics.DrawRectangle(pen, rect);
}
}
}
}
}
}