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RecolorTool.cs
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RecolorTool.cs
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//
// RecolorTool.cs
//
// Author:
// Jonathan Pobst <monkey@jpobst.com>
//
// Copyright (c) 2010 Jonathan Pobst
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Some methods from Paint.Net:
/////////////////////////////////////////////////////////////////////////////////
// Paint.NET //
// Copyright (C) dotPDN LLC, Rick Brewster, Tom Jackson, and contributors. //
// Portions Copyright (C) Microsoft Corporation. All Rights Reserved. //
// See license-pdn.txt for full licensing and attribution details. //
/////////////////////////////////////////////////////////////////////////////////
using System;
using Cairo;
using Gtk;
using Pinta.Core;
namespace Pinta.Tools
{
public class RecolorTool : BaseBrushTool
{
private readonly IWorkspaceService workspace;
private Point last_point = point_empty;
private BitMask? stencil;
private const string TOLERANCE_SETTING = "recolor-tolerance";
public RecolorTool (IServiceManager services) : base (services)
{
workspace = services.GetService<IWorkspaceService> ();
}
public override string Name => Translations.GetString ("Recolor");
public override string Icon => Pinta.Resources.Icons.ToolRecolor;
public override string StatusBarText => Translations.GetString ("Left click to replace the secondary color with the primary color. " +
"Right click to reverse.");
public override Gdk.Cursor DefaultCursor => new Gdk.Cursor (Gdk.Display.Default, Resources.GetIcon ("Cursor.Recolor.png"), 9, 18);
public override Gdk.Key ShortcutKey => Gdk.Key.R;
protected float Tolerance => (float) (ToleranceSlider.Slider.Value / 100);
public override int Priority => 49;
protected override void OnBuildToolBar (Toolbar tb)
{
base.OnBuildToolBar (tb);
tb.AppendItem (Separator);
tb.AppendItem (ToleranceLabel);
tb.AppendItem (ToleranceSlider);
}
protected override void OnMouseDown (Document document, ToolMouseEventArgs e)
{
document.Layers.ToolLayer.Clear ();
stencil = new BitMask (document.ImageSize.Width, document.ImageSize.Height);
base.OnMouseDown (document, e);
}
protected unsafe override void OnMouseMove (Document document, ToolMouseEventArgs e)
{
ColorBgra old_color;
ColorBgra new_color;
// This should have been created in OnMouseDown
if (stencil is null)
return;
if (mouse_button == MouseButton.Left) {
old_color = Palette.PrimaryColor.ToColorBgra ();
new_color = Palette.SecondaryColor.ToColorBgra ();
} else if (mouse_button == MouseButton.Right) {
old_color = Palette.SecondaryColor.ToColorBgra ();
new_color = Palette.PrimaryColor.ToColorBgra ();
} else {
last_point = point_empty;
return;
}
var x = e.Point.X;
var y = e.Point.Y;
if (last_point.Equals (point_empty))
last_point = new Point (x, y);
if (document.Workspace.PointInCanvas (e.PointDouble))
surface_modified = true;
var surf = document.Layers.CurrentUserLayer.Surface;
var tmp_layer = document.Layers.ToolLayer.Surface;
var roi = CairoExtensions.GetRectangleFromPoints (last_point, new Point (x, y), BrushWidth + 2);
roi = workspace.ClampToImageSize (roi);
var myTolerance = (int) (Tolerance * 256);
tmp_layer.Flush ();
var tmp_data_ptr = (ColorBgra*) tmp_layer.DataPtr;
var tmp_width = tmp_layer.Width;
var surf_data_ptr = (ColorBgra*) surf.DataPtr;
var surf_width = surf.Width;
// The stencil lets us know if we've already checked this
// pixel, providing a nice perf boost
// Maybe this should be changed to a BitVector2DSurfaceAdapter?
for (var i = roi.X; i <= roi.GetRight (); i++)
for (var j = roi.Y; j <= roi.GetBottom (); j++) {
if (stencil[i, j])
continue;
if (ColorBgra.ColorsWithinTolerance (new_color, surf.GetColorBgraUnchecked (surf_data_ptr, surf_width, i, j), myTolerance))
*tmp_layer.GetPointAddressUnchecked (tmp_data_ptr, tmp_width, i, j) = AdjustColorDifference (new_color, old_color, surf.GetColorBgraUnchecked (surf_data_ptr, surf_width, i, j));
stencil[i, j] = true;
}
tmp_layer.MarkDirty ();
using (var g = document.CreateClippedContext ()) {
g.Antialias = UseAntialiasing ? Antialias.Subpixel : Antialias.None;
g.MoveTo (last_point.X, last_point.Y);
g.LineTo (x, y);
g.LineWidth = BrushWidth;
g.LineJoin = LineJoin.Round;
g.LineCap = LineCap.Round;
g.SetSource (tmp_layer);
g.Stroke ();
}
document.Workspace.Invalidate (roi);
last_point = new Point (x, y);
}
protected override void OnSaveSettings (ISettingsService settings)
{
base.OnSaveSettings (settings);
if (tolerance_slider is not null)
settings.PutSetting (TOLERANCE_SETTING, (int) tolerance_slider.Slider.Value);
}
#region Private PDN Methods
private static ColorBgra AdjustColorDifference (ColorBgra oldColor, ColorBgra newColor, ColorBgra basisColor)
{
ColorBgra returnColor;
// eliminate testing for the "equal to" case
returnColor = basisColor;
returnColor.B = AdjustColorByte (oldColor.B, newColor.B, basisColor.B);
returnColor.G = AdjustColorByte (oldColor.G, newColor.G, basisColor.G);
returnColor.R = AdjustColorByte (oldColor.R, newColor.R, basisColor.R);
return returnColor;
}
private static byte AdjustColorByte (byte oldByte, byte newByte, byte basisByte)
{
if (oldByte > newByte)
return Utility.ClampToByte (basisByte - (oldByte - newByte));
else
return Utility.ClampToByte (basisByte + (newByte - oldByte));
}
#endregion
private ToolBarLabel? tolerance_label;
private ToolBarSlider? tolerance_slider;
private SeparatorToolItem? separator;
private ToolBarLabel ToleranceLabel => tolerance_label ??= new ToolBarLabel (string.Format (" {0}: ", Translations.GetString ("Tolerance")));
private ToolBarSlider ToleranceSlider => tolerance_slider ??= new ToolBarSlider (0, 100, 1, Settings.GetSetting (TOLERANCE_SETTING, 50));
private SeparatorToolItem Separator => separator ??= new SeparatorToolItem ();
}
}