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//
// Document.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.

using System;
using System.Linq;
using Mono.Unix;
using Gdk;
using Gtk;
using System.Collections.Generic;
using Cairo;
using System.ComponentModel;
using Pinta;

namespace Pinta.Core
{
// The differentiation between Document and DocumentWorkspace is
// somewhat arbitrary. In general:
// Document - Data about the image itself
// Workspace - Data about Pinta's state for the image
public class Document
{
private string filename;
private bool is_dirty;
private int layer_name_int = 2;
private int current_layer = -1;

// The layer for tools to use until their output is committed
private Layer tool_layer;

// The layer used for selections
private Layer selection_layer;

private bool show_selection;

public DocumentSelection Selection = new DocumentSelection();

public Document (Gdk.Size size)
{
Guid = Guid.NewGuid ();

Workspace = new DocumentWorkspace (this);
IsDirty = false;
HasFile = false;
HasBeenSavedInSession = false;
ImageSize = size;

UserLayers = new List<UserLayer>();

tool_layer = CreateLayer ("Tool Layer");
tool_layer.Hidden = true;

selection_layer = CreateLayer ("Selection Layer");
selection_layer.Hidden = true;

ResetSelectionPath ();
}

#region Public Properties
public UserLayer CurrentUserLayer
{
get { return UserLayers[current_layer]; }
}

public int CurrentUserLayerIndex {
get { return current_layer; }
}

/// <summary>
/// Just the file name, like "dog.jpg".
/// </summary>
public string Filename {
get { return filename; }
set {
if (filename != value) {
filename = value;
OnRenamed ();
}
}
}

public Guid Guid { get; private set; }

public bool HasFile { get; set; }

//Determines whether or not the Document has been saved to the file that it is currently associated with in the
//current session. This should be false if the Document has not yet been saved, if it was just loaded into
//Pinta from a file, or if the user just clicked Save As.
public bool HasBeenSavedInSession { get; set; }

public DocumentWorkspaceHistory History { get { return Workspace.History; } }

public Gdk.Size ImageSize { get; set; }

public bool IsDirty {
get { return is_dirty; }
set {
if (is_dirty != value) {
is_dirty = value;
OnIsDirtyChanged ();
}
}
}

public List<UserLayer> UserLayers { get; private set; }

/// <summary>
/// Just the directory name, like "C:\MyPictures".
/// </summary>
public string Pathname { get; set; }

/// <summary>
/// Directory and file name, like "C:\MyPictures\dog.jpg".
/// </summary>
public string PathAndFileName {
get { return System.IO.Path.Combine (Pathname, Filename); }
set {
if (string.IsNullOrEmpty (value)) {
Pathname = string.Empty;
Filename = string.Empty;
} else {
Pathname = System.IO.Path.GetDirectoryName (value);
Filename = System.IO.Path.GetFileName (value);
}
}
}

public Layer SelectionLayer {
get { return selection_layer; }
}

public bool ShowSelection {
get { return show_selection; }
set {
show_selection = value;
PintaCore.Actions.Edit.Deselect.Sensitive = show_selection;
PintaCore.Actions.Edit.EraseSelection.Sensitive = show_selection;
PintaCore.Actions.Edit.FillSelection.Sensitive = show_selection;
PintaCore.Actions.Image.CropToSelection.Sensitive = show_selection;
PintaCore.Actions.Edit.InvertSelection.Sensitive = show_selection;
}
}

public bool ShowSelectionLayer { get; set; }

public Layer ToolLayer {
get {
if (tool_layer.Surface.Width != ImageSize.Width || tool_layer.Surface.Height != ImageSize.Height) {
(tool_layer.Surface as IDisposable).Dispose ();
tool_layer = CreateLayer ("Tool Layer");
tool_layer.Hidden = true;
}

return tool_layer;
}
}

public DocumentWorkspace Workspace { get; private set; }

public delegate void LayerCloneEvent();
#endregion

#region Public Methods
// Adds a new layer above the current one
public UserLayer AddNewLayer(string name)
{
UserLayer layer;

if (string.IsNullOrEmpty (name))
layer = CreateLayer ();
else
layer = CreateLayer (name);

UserLayers.Insert (current_layer + 1, layer);

if (UserLayers.Count == 1)
current_layer = 0;

layer.PropertyChanged += RaiseLayerPropertyChangedEvent;

PintaCore.Layers.OnLayerAdded ();
return layer;
}

public Gdk.Rectangle ClampToImageSize (Gdk.Rectangle r)
{
int x = Utility.Clamp (r.X, 0, ImageSize.Width);
int y = Utility.Clamp (r.Y, 0, ImageSize.Height);
int width = Math.Min (r.Width, ImageSize.Width - x);
int height = Math.Min (r.Height, ImageSize.Height - y);

return new Gdk.Rectangle (x, y, width, height);
}

public void Clear ()
{
while (UserLayers.Count > 0) {
Layer l = UserLayers[UserLayers.Count - 1];
UserLayers.RemoveAt (UserLayers.Count - 1);
(l.Surface as IDisposable).Dispose ();
}

current_layer = -1;
PintaCore.Layers.OnLayerRemoved ();
}

// Clean up any native resources we had
public void Close ()
{
// Dispose all of our layers
while (UserLayers.Count > 0) {
Layer l = UserLayers[UserLayers.Count - 1];
UserLayers.RemoveAt (UserLayers.Count - 1);
(l.Surface as IDisposable).Dispose ();
}

current_layer = -1;

if (tool_layer != null)
(tool_layer.Surface as IDisposable).Dispose ();

if (selection_layer != null)
(selection_layer.Surface as IDisposable).Dispose ();

Selection.DisposeSelection();

Workspace.History.Clear ();
}

public Context CreateClippedContext ()
{
Context g = new Context (CurrentUserLayer.Surface);
Selection.Clip (g);
return g;
}

public Context CreateClippedContext (bool antialias)
{
Context g = new Context (CurrentUserLayer.Surface);
Selection.Clip (g);
g.Antialias = antialias ? Antialias.Subpixel : Antialias.None;
return g;
}

public Context CreateClippedToolContext ()
{
Context g = new Context (ToolLayer.Surface);
Selection.Clip (g);
return g;
}

public Context CreateClippedToolContext (bool antialias)
{
Context g = new Context (ToolLayer.Surface);
Selection.Clip (g);
g.Antialias = antialias ? Antialias.Subpixel : Antialias.None;
return g;
}

public UserLayer CreateLayer ()
{
return CreateLayer (string.Format ("{0} {1}", Catalog.GetString ("Layer"), layer_name_int++));
}

public UserLayer CreateLayer (int width, int height)
{
return CreateLayer (string.Format ("{0} {1}", Catalog.GetString ("Layer"), layer_name_int++), width, height);
}

public UserLayer CreateLayer (string name)
{
return CreateLayer (name, ImageSize.Width, ImageSize.Height);
}

public UserLayer CreateLayer(string name, int width, int height)
{
Cairo.ImageSurface surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, width, height);
UserLayer layer = new UserLayer(surface) { Name = name };

return layer;
}

public void CreateSelectionLayer ()
{
Layer old = selection_layer;

selection_layer = CreateLayer ();

if (old != null)
(old.Surface as IDisposable).Dispose ();
}

public void CreateSelectionLayer (int width, int height)
{
Layer old = selection_layer;

selection_layer = CreateLayer (width, height);

if (old != null)
(old.Surface as IDisposable).Dispose ();
}

// Delete the current layer
public void DeleteCurrentLayer ()
{
Layer layer = CurrentUserLayer;

UserLayers.RemoveAt (current_layer);

// Only change this if this wasn't already the bottom layer
if (current_layer > 0)
current_layer--;

layer.PropertyChanged -= RaiseLayerPropertyChangedEvent;

PintaCore.Layers.OnLayerRemoved ();
}

// Delete the layer
public void DeleteLayer (int index, bool dispose)
{
Layer layer = UserLayers[index];

UserLayers.RemoveAt (index);

if (dispose)
(layer.Surface as IDisposable).Dispose ();

// Only change this if this wasn't already the bottom layer
if (current_layer > 0)
current_layer--;

layer.PropertyChanged -= RaiseLayerPropertyChangedEvent;

PintaCore.Layers.OnLayerRemoved ();
}

public void DestroySelectionLayer ()
{
ShowSelectionLayer = false;
SelectionLayer.Clear ();
SelectionLayer.Transform.InitIdentity();
}

// Duplicate current layer
public UserLayer DuplicateCurrentLayer()
{
UserLayer source = CurrentUserLayer;
UserLayer layer = CreateLayer(string.Format("{0} {1}", source.Name, Catalog.GetString("copy")));

using (Cairo.Context g = new Cairo.Context (layer.Surface)) {
g.SetSource (source.Surface);
g.Paint ();
}

layer.Hidden = source.Hidden;
layer.Opacity = source.Opacity;
layer.Tiled = source.Tiled;

UserLayers.Insert (++current_layer, layer);

layer.PropertyChanged += RaiseLayerPropertyChangedEvent;

PintaCore.Layers.OnLayerAdded ();

return layer;
}

public void FinishSelection ()
{
// We don't have an uncommitted layer, abort
if (!ShowSelectionLayer)
return;

FinishPixelsHistoryItem hist = new FinishPixelsHistoryItem ();
hist.TakeSnapshot ();

Layer layer = SelectionLayer;

using (Cairo.Context g = new Cairo.Context (CurrentUserLayer.Surface)) {
layer.Draw(g);
}

DestroySelectionLayer ();
Workspace.Invalidate ();

Workspace.History.PushNewItem (hist);
}

// Flatten image
public void FlattenImage ()
{
if (UserLayers.Count < 2)
throw new InvalidOperationException ("Cannot flatten image because there is only one layer.");

// Find the "bottom" layer
var bottom_layer = UserLayers[0];
var old_surf = bottom_layer.Surface;

// Replace the bottom surface with the flattened image,
// and dispose the old surface
bottom_layer.Surface = GetFlattenedImage ();
(old_surf as IDisposable).Dispose ();

// Reset our layer pointer to the only remaining layer
current_layer = 0;

// Delete all other layers
while (UserLayers.Count > 1)
UserLayers.RemoveAt (1);

PintaCore.Layers.OnLayerRemoved ();
Workspace.Invalidate ();
}

// Flip image horizontally
public void FlipImageHorizontal ()
{
foreach (var layer in UserLayers)
layer.FlipHorizontal ();

Workspace.Invalidate ();
}

// Flip image vertically
public void FlipImageVertical ()
{
foreach (var layer in UserLayers)
layer.FlipVertical ();

Workspace.Invalidate ();
}

public ImageSurface GetClippedLayer (int index)
{
Cairo.ImageSurface surf = new Cairo.ImageSurface (Cairo.Format.Argb32, ImageSize.Width, ImageSize.Height);

using (Cairo.Context g = new Cairo.Context (surf)) {
g.AppendPath(Selection.SelectionPath);
g.Clip ();

g.SetSource (UserLayers[index].Surface);
g.Paint ();
}

return surf;
}

/// <summary>
/// Gets the final pixel color for the given point, taking layers, opacity, and blend modes into account.
/// </summary>
public ColorBgra GetComputedPixel (int x, int y)
{
var pixel = ColorBgra.Zero;

foreach (var layer in GetLayersToPaint ()) {
var blend_op = UserBlendOps.GetBlendOp (layer.BlendMode, layer.Opacity);

pixel = blend_op.Apply (pixel, layer.Surface.GetColorBgra (x, y));
}

return pixel;
}

public ImageSurface GetFlattenedImage ()
{
// Create a new image surface
var surf = new Cairo.ImageSurface (Cairo.Format.Argb32, ImageSize.Width, ImageSize.Height);

// Blend each visible layer onto our surface
foreach (var layer in GetLayersToPaint ()) {
var blendop = UserBlendOps.GetBlendOp (layer.BlendMode, layer.Opacity);
blendop.Apply (surf, layer.Surface);
}

surf.MarkDirty ();
return surf;
}

public List<Layer> GetLayersToPaint ()
{
List<Layer> paint = new List<Layer> ();

foreach (var layer in UserLayers) {
if (!layer.Hidden)
paint.Add (layer);

if (layer == CurrentUserLayer) {
if (!ToolLayer.Hidden)
paint.Add (ToolLayer);

if (ShowSelectionLayer)
paint.Add (SelectionLayer);
}

//Make sure that the UserLayer's TextLayer is in use.
if (!layer.Hidden && layer.IsTextLayerSetup)
{
paint.Add(layer.TextLayer);
}
}

return paint;
}

/// <param name="canvasOnly">false for the whole selection, true for the part only on our canvas</param>
public Gdk.Rectangle GetSelectedBounds (bool canvasOnly)
{
var bounds = Selection.SelectionPath.GetBounds();

if (canvasOnly)
bounds = ClampToImageSize (bounds);

return bounds;
}

public int IndexOf(UserLayer layer)
{
return UserLayers.IndexOf (layer);
}

// Adds a new layer above the current one
public void Insert(UserLayer layer, int index)
{
UserLayers.Insert (index, layer);

if (UserLayers.Count == 1)
current_layer = 0;

layer.PropertyChanged += RaiseLayerPropertyChangedEvent;

PintaCore.Layers.OnLayerAdded ();
}

// Flatten current layer
public void MergeCurrentLayerDown ()
{
if (current_layer == 0)
throw new InvalidOperationException ("Cannot flatten layer because current layer is the bottom layer.");

// Get our source and destination layers
var source = CurrentUserLayer;
var dest = UserLayers[current_layer - 1];

// Blend the layers
var blendop = UserBlendOps.GetBlendOp (source.BlendMode, source.Opacity);
blendop.Apply (dest.Surface, source.Surface);

DeleteCurrentLayer ();
}

// Move current layer down
public void MoveCurrentLayerDown ()
{
if (current_layer == 0)
throw new InvalidOperationException ("Cannot move layer down because current layer is the bottom layer.");

UserLayer layer = CurrentUserLayer;
UserLayers.RemoveAt (current_layer);
UserLayers.Insert (--current_layer, layer);

PintaCore.Layers.OnSelectedLayerChanged ();

Workspace.Invalidate ();
}

// Move current layer up
public void MoveCurrentLayerUp ()
{
if (current_layer == UserLayers.Count)
throw new InvalidOperationException ("Cannot move layer up because current layer is the top layer.");

UserLayer layer = CurrentUserLayer;
UserLayers.RemoveAt (current_layer);
UserLayers.Insert (++current_layer, layer);

PintaCore.Layers.OnSelectedLayerChanged ();

Workspace.Invalidate ();
}

public void ResetSelectionPath()
{
Selection.DisposeSelectionPreserve();

Selection.ResetSelection(selection_layer.Surface, ImageSize);

ShowSelection = false;
}

/// <summary>
/// Resizes the canvas.
/// </summary>
/// <param name='compoundAction'>
/// Optionally, the history item for resizing the canvas can be added to
/// a CompoundHistoryItem if it is part of a larger action (e.g. pasting an image).
/// </param>
public void ResizeCanvas (int width, int height, Anchor anchor, CompoundHistoryItem compoundAction)
{
double scale;

if (ImageSize.Width == width && ImageSize.Height == height)
return;

PintaCore.Tools.Commit ();

ResizeHistoryItem hist = new ResizeHistoryItem (ImageSize);
hist.Icon = "Menu.Image.CanvasSize.png";
hist.Text = Catalog.GetString ("Resize Canvas");
hist.StartSnapshotOfImage ();

scale = Workspace.Scale;

ImageSize = new Gdk.Size (width, height);

foreach (var layer in UserLayers)
layer.ResizeCanvas (width, height, anchor);

hist.FinishSnapshotOfImage ();

if (compoundAction != null) {
compoundAction.Push (hist);
} else {
Workspace.History.PushNewItem (hist);
}

ResetSelectionPath ();

Workspace.Scale = scale;
}

public void ResizeImage (int width, int height)
{
double scale;

if (ImageSize.Width == width && ImageSize.Height == height)
return;

PintaCore.Tools.Commit ();

ResizeHistoryItem hist = new ResizeHistoryItem (ImageSize);
hist.StartSnapshotOfImage ();

scale = Workspace.Scale;

ImageSize = new Gdk.Size (width, height);

foreach (var layer in UserLayers)
layer.Resize (width, height);

hist.FinishSnapshotOfImage ();

Workspace.History.PushNewItem (hist);

ResetSelectionPath ();

Workspace.Scale = scale;
}

// Rotate image 180 degrees (flip H+V)
public void RotateImage180 ()
{
RotateImage (180);
}

public void RotateImageCW ()
{
RotateImage (90);
}

public void RotateImageCCW ()
{
RotateImage (-90);
}

/// <summary>
/// Rotates the image by the specified angle (in degrees)
/// </summary>
private void RotateImage (double angle)
{
foreach (var layer in UserLayers)
{
layer.Rotate (angle);
}

ImageSize = Layer.RotateDimensions (ImageSize, angle);
Workspace.CanvasSize = Layer.RotateDimensions (Workspace.CanvasSize, angle);

PintaCore.Actions.View.UpdateCanvasScale ();
Workspace.Invalidate ();
}

// Returns true if successful, false if canceled
public bool Save (bool saveAs)
{
return PintaCore.Actions.File.RaiseSaveDocument (this, saveAs);
}

public void SetCurrentUserLayer (int i)
{
// Ensure that the current tool's modifications are finalized before
// switching layers.
PintaCore.Tools.CurrentTool.DoCommit ();

current_layer = i;
PintaCore.Layers.OnSelectedLayerChanged ();
}

public void SetCurrentUserLayer(UserLayer layer)
{
SetCurrentUserLayer (UserLayers.IndexOf (layer));
}

/// <summary>
/// Pastes an image from the clipboard.
/// </summary>
/// <param name="toNewLayer">Set to TRUE to paste into a
/// new layer. Otherwise, will paste to the current layer.</param>
/// <param name="x">Optional. Location within image to paste to.
/// Position will be adjusted if pasted image would hang
/// over right or bottom edges of canvas.</param>
/// <param name="y">Optional. Location within image to paste to.
/// Position will be adjusted if pasted image would hang
/// over right or bottom edges of canvas.</param>
public void Paste (bool toNewLayer, int x = 0, int y = 0)
{
// Create a compound history item for recording several
// operations so that they can all be undone/redone together.
CompoundHistoryItem paste_action;
if (toNewLayer)
{
paste_action = new CompoundHistoryItem (Stock.Paste, Catalog.GetString ("Paste Into New Layer"));
}
else
{
paste_action = new CompoundHistoryItem (Stock.Paste, Catalog.GetString ("Paste"));
}

Gtk.Clipboard cb = Gtk.Clipboard.Get (Gdk.Atom.Intern ("CLIPBOARD", false));

// See if the current tool wants to handle the paste
// operation (e.g., the text tool could paste text)
if (!toNewLayer)
{
if (PintaCore.Tools.CurrentTool.TryHandlePaste (cb))
return;
}

PintaCore.Tools.Commit ();

Path p;

// Don't dispose this, as we're going to give it to the history
Gdk.Pixbuf cbImage = cb.WaitForImage ();

if (cbImage == null)
{
ShowClipboardEmptyDialog();
return;
}

Gdk.Size canvas_size = PintaCore.Workspace.ImageSize;

// If the image being pasted is larger than the canvas size, allow the user to optionally resize the canvas
if (cbImage.Width > canvas_size.Width || cbImage.Height > canvas_size.Height)
{
ResponseType response = ShowExpandCanvasDialog ();

if (response == ResponseType.Accept)
{
PintaCore.Workspace.ResizeCanvas (cbImage.Width, cbImage.Height,
Pinta.Core.Anchor.Center, paste_action);
PintaCore.Actions.View.UpdateCanvasScale ();
}
else if (response == ResponseType.Cancel || response == ResponseType.DeleteEvent)
{
return;
}
}

// If the pasted image would fall off bottom- or right-
// side of image, adjust paste position
x = Math.Max (0, Math.Min (x, canvas_size.Width - cbImage.Width));
y = Math.Max (0, Math.Min (y, canvas_size.Height - cbImage.Height));

// If requested, create a new layer, make it the current
// layer and record it's creation in the history
if (toNewLayer)
{
UserLayer l = AddNewLayer (string.Empty);
SetCurrentUserLayer (l);
paste_action.Push (new AddLayerHistoryItem ("Menu.Layers.AddNewLayer.png", Catalog.GetString ("Add New Layer"), UserLayers.IndexOf (l)));
}

// Copy the paste to the temp layer, which should be at least the size of this document.
CreateSelectionLayer (Math.Max(ImageSize.Width, cbImage.Width),
Math.Max(ImageSize.Height, cbImage.Height));
ShowSelectionLayer = true;

using (Cairo.Context g = new Cairo.Context (SelectionLayer.Surface))
{

g.DrawPixbuf (cbImage, new Cairo.Point (0, 0));
p = g.CreateRectanglePath (new Cairo.Rectangle (x, y, cbImage.Width, cbImage.Height));
}

SelectionLayer.Transform.InitIdentity();
SelectionLayer.Transform.Translate (x, y);

PintaCore.Tools.SetCurrentTool (Catalog.GetString ("Move Selected Pixels"));

DocumentSelection old_selection = Selection.Clone();
bool old_show_selection = ShowSelection;

Selection.SelectionPath = p;
Selection.SelectionPolygons.Clear();
ShowSelection = true;

Workspace.Invalidate ();

paste_action.Push (new PasteHistoryItem (cbImage, old_selection, old_show_selection));
History.PushNewItem (paste_action);
}

private ResponseType ShowExpandCanvasDialog ()
{
const string markup = "<span weight=\"bold\" size=\"larger\">{0}</span>\n\n{1}";
string primary = Catalog.GetString ("Image larger than canvas");
string secondary = Catalog.GetString ("The image being pasted is larger than the canvas size. What would you like to do?");
string message = string.Format (markup, primary, secondary);

var enlarge_dialog = new MessageDialog (PintaCore.Chrome.MainWindow, DialogFlags.Modal, MessageType.Question, ButtonsType.None, message);
enlarge_dialog.AddButton (Catalog.GetString ("Expand canvas"), ResponseType.Accept);
enlarge_dialog.AddButton (Catalog.GetString ("Don't change canvas size"), ResponseType.Reject);
enlarge_dialog.AddButton (Stock.Cancel, ResponseType.Cancel);
enlarge_dialog.DefaultResponse = ResponseType.Accept;

ResponseType response = (ResponseType)enlarge_dialog.Run ();

enlarge_dialog.Destroy ();

return response;
}

public static void ShowClipboardEmptyDialog()
{
var primary = Catalog.GetString ("Image cannot be pasted");
var secondary = Catalog.GetString ("The clipboard does not contain an image.");
var markup = "<span weight=\"bold\" size=\"larger\">{0}</span>\n\n{1}\n";
markup = string.Format (markup, primary, secondary);

var md = new MessageDialog (Pinta.Core.PintaCore.Chrome.MainWindow, DialogFlags.Modal,
MessageType.Error, ButtonsType.None, true,
markup);

md.AddButton (Stock.Ok, ResponseType.Yes);

md.Run ();
md.Destroy ();
}

/// <summary>
/// Signal to the TextTool that an ImageSurface was cloned.
/// </summary>
public void SignalSurfaceCloned()
{
if (LayerCloned != null)
{
LayerCloned();
}
}
#endregion

#region Protected Methods
protected void OnIsDirtyChanged ()
{
if (IsDirtyChanged != null)
IsDirtyChanged (this, EventArgs.Empty);
}

protected void OnRenamed ()
{
if (Renamed != null)
Renamed (this, EventArgs.Empty);
}
#endregion

#region Private Methods
private void RaiseLayerPropertyChangedEvent (object sender, PropertyChangedEventArgs e)
{
PintaCore.Layers.RaiseLayerPropertyChangedEvent (sender, e);
}
#endregion

#region Public Events
public event EventHandler IsDirtyChanged;
public event EventHandler Renamed;
public event LayerCloneEvent LayerCloned;
#endregion
}
}
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