mirror of
https://github.com/ShareX/ShareX.git
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1888 lines
No EOL
66 KiB
C#
1888 lines
No EOL
66 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2013 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 Sourceforge: http://sourceforge.net/projects/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 Greenshot.Configuration;
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using Greenshot.Core;
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using Greenshot.Drawing.Fields;
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using Greenshot.Helpers;
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using Greenshot.IniFile;
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using Greenshot.Memento;
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using Greenshot.Plugin;
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using Greenshot.Plugin.Drawing;
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using GreenshotPlugin;
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using GreenshotPlugin.Controls;
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using GreenshotPlugin.Core;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Windows.Forms;
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namespace Greenshot.Drawing
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{
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/// <summary>
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/// Description of Surface.
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/// </summary>
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public class Surface : Control, ISurface
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{
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public static int Count = 0;
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private static CoreConfiguration conf = IniConfig.GetIniSection<CoreConfiguration>();
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/// <summary>
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/// Event handlers (do not serialize!)
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/// </summary>
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[NonSerialized]
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private SurfaceElementEventHandler movingElementChanged;
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public event SurfaceElementEventHandler MovingElementChanged
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{
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add
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{
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movingElementChanged += value;
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}
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remove
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{
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movingElementChanged -= value;
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}
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}
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[NonSerialized]
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private SurfaceDrawingModeEventHandler drawingModeChanged;
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public event SurfaceDrawingModeEventHandler DrawingModeChanged
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{
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add
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{
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drawingModeChanged += value;
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}
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remove
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{
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drawingModeChanged -= value;
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}
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}
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[NonSerialized]
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private SurfaceSizeChangeEventHandler surfaceSizeChanged;
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public event SurfaceSizeChangeEventHandler SurfaceSizeChanged
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{
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add
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{
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surfaceSizeChanged += value;
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}
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remove
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{
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surfaceSizeChanged -= value;
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}
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}
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[NonSerialized]
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private SurfaceMessageEventHandler surfaceMessage;
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public event SurfaceMessageEventHandler SurfaceMessage
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{
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add
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{
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surfaceMessage += value;
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}
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remove
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{
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surfaceMessage -= value;
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}
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}
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/// <summary>
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/// inUndoRedo makes sure we don't undo/redo while in a undo/redo action
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/// </summary>
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[NonSerialized]
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private bool inUndoRedo = false;
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/// <summary>
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/// Make only one surfacemove cycle undoable, see SurfaceMouseMove
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/// </summary>
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[NonSerialized]
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private bool isSurfaceMoveMadeUndoable = false;
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/// <summary>
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/// Undo/Redo stacks, should not be serialized as the file would be way to big
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/// </summary>
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[NonSerialized]
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private Stack<IMemento> undoStack = new Stack<IMemento>();
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[NonSerialized]
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private Stack<IMemento> redoStack = new Stack<IMemento>();
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/// <summary>
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/// Last save location, do not serialize!
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/// </summary>
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[NonSerialized]
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private string lastSaveFullPath = null;
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/// <summary>
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/// current drawing mode, do not serialize!
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/// </summary>
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[NonSerialized]
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private DrawingModes drawingMode = DrawingModes.None;
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/// <summary>
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/// the keyslocked flag helps with focus issues
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/// </summary>
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[NonSerialized]
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private bool keysLocked = false;
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/// <summary>
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/// Location of the mouse-down (it "starts" here), do not serialize
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/// </summary>
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[NonSerialized]
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private Point mouseStart = Point.Empty;
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/// <summary>
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/// are we in a mouse down, do not serialize
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/// </summary>
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[NonSerialized]
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private bool mouseDown = false;
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/// <summary>
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/// are we dragging, do not serialize
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/// </summary>
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[NonSerialized]
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private bool draggingInProgress = false;
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/// <summary>
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/// The selected element for the mouse down, do not serialize
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/// </summary>
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[NonSerialized]
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private IDrawableContainer mouseDownElement = null;
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/// <summary>
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/// all selected elements, do not serialize
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/// </summary>
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[NonSerialized]
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private DrawableContainerList selectedElements = new DrawableContainerList();
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/// <summary>
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/// the element we are drawing with, do not serialize
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/// </summary>
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[NonSerialized]
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private IDrawableContainer drawingElement = null;
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/// <summary>
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/// the element we want to draw with (not yet drawn), do not serialize
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/// </summary>
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[NonSerialized]
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private IDrawableContainer undrawnElement = null;
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/// <summary>
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/// the cropcontainer, when cropping this is set, do not serialize
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/// </summary>
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[NonSerialized]
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private IDrawableContainer cropContainer = null;
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/// <summary>
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/// the brush which is used for transparent backgrounds, set by the editor, do not serialize
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/// </summary>
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[NonSerialized]
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private Brush transparencyBackgroundBrush;
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/// <summary>
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/// The buffer is only for drawing on it when using filters (to supply access)
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/// This saves a lot of "create new bitmap" commands
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/// Should not be serialized, as it's generated.
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/// The actual bitmap is in the paintbox...
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/// </summary>
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[NonSerialized]
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private Bitmap buffer = null;
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/// <summary>
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/// all elements on the surface, needed with serialization
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/// </summary>
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private DrawableContainerList elements = new DrawableContainerList();
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/// <summary>
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/// all elements on the surface, needed with serialization
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/// </summary>
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private FieldAggregator fieldAggregator = new FieldAggregator();
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/// <summary>
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/// the cursor container, needed with serialization as we need a direct acces to it.
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/// </summary>
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private IDrawableContainer cursorContainer = null;
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/// <summary>
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/// the capture details, needed with serialization
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/// </summary>
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private ICaptureDetails captureDetails = null;
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/// <summary>
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/// the modified flag specifies if the surface has had modifications after the last export.
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/// Initial state is modified, as "it's not saved"
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/// After serialization this should actually be "false" (the surface came from a stream)
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/// For now we just serialize it...
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/// </summary>
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private bool modified = true;
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/// <summary>
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/// The image is the actual captured image, needed with serialization
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/// </summary>
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private Image image = null;
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public Image Image
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{
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get
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{
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return image;
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}
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set
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{
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image = value;
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Size = image.Size;
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}
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}
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/// <summary>
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/// The field aggregator is that which is used to have access to all the fields inside the currently selected elements.
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/// e.g. used to decided if and which line thickness is shown when multiple elements are selected.
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/// </summary>
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public FieldAggregator FieldAggregator
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{
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get
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{
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return fieldAggregator;
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}
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set
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{
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fieldAggregator = value;
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}
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}
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/// <summary>
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/// The cursor container has it's own accessor so we can find and remove this (when needed)
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/// </summary>
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public IDrawableContainer CursorContainer
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{
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get
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{
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return cursorContainer;
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}
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}
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/// <summary>
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/// A simple getter to ask if this surface has a cursor
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/// </summary>
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public bool HasCursor
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{
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get
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{
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return cursorContainer != null;
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}
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}
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/// <summary>
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/// A simple helper method to remove the cursor from the surface
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/// </summary>
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public void RemoveCursor()
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{
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RemoveElement(cursorContainer, true);
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cursorContainer = null;
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}
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/// <summary>
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/// The brush which is used to draw the transparent background
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/// </summary>
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public Brush TransparencyBackgroundBrush
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{
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get
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{
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return transparencyBackgroundBrush;
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}
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set
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{
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transparencyBackgroundBrush = value;
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}
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}
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/// <summary>
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/// Are the keys on this surface locked?
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/// </summary>
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public bool KeysLocked
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{
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get
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{
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return keysLocked;
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}
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set
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{
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keysLocked = value;
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}
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}
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/// <summary>
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/// Is this surface modified? This is only true if the surface has not been exported.
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/// </summary>
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public bool Modified
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{
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get
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{
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return modified;
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}
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set
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{
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modified = value;
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}
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}
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/// <summary>
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/// The DrawingMode property specifies the mode for drawing, more or less the element type.
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/// </summary>
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public DrawingModes DrawingMode
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{
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get
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{
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return drawingMode;
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}
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set
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{
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drawingMode = value;
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if (drawingModeChanged != null)
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{
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SurfaceDrawingModeEventArgs eventArgs = new SurfaceDrawingModeEventArgs();
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eventArgs.DrawingMode = drawingMode;
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drawingModeChanged.Invoke(this, eventArgs);
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}
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DeselectAllElements();
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CreateUndrawnElement();
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}
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}
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/// <summary>
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/// Property for accessing the last save "full" path
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/// </summary>
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public string LastSaveFullPath
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{
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get
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{
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return lastSaveFullPath;
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}
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set
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{
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lastSaveFullPath = value;
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}
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}
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/// <summary>
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/// Property for accessing the URL to which the surface was recently uploaded
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/// </summary>
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public string UploadURL
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{
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get;
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set;
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}
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/// <summary>
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/// Property for accessing the capture details
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/// </summary>
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public ICaptureDetails CaptureDetails
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{
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get
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{
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return captureDetails;
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}
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set
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{
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captureDetails = value;
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}
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}
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/// <summary>
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/// Base Surface constructor
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/// </summary>
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public Surface()
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: base()
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{
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Count++;
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LOG.Debug("Creating surface!");
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MouseDown += SurfaceMouseDown;
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MouseUp += SurfaceMouseUp;
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MouseMove += SurfaceMouseMove;
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MouseDoubleClick += SurfaceDoubleClick;
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Paint += SurfacePaint;
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AllowDrop = true;
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DragDrop += OnDragDrop;
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DragEnter += OnDragEnter;
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// bind selected & elements to this, otherwise they can't inform of modifications
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selectedElements.Parent = this;
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elements.Parent = this;
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// Make sure we are visible
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Visible = true;
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TabStop = false;
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// Enable double buffering
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DoubleBuffered = true;
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SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.ContainerControl | ControlStyles.OptimizedDoubleBuffer | ControlStyles.SupportsTransparentBackColor, true);
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}
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/// <summary>
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/// Private method, the current image is disposed the new one will stay.
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/// </summary>
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/// <param name="image">The new image</param>
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/// <param name="dispose">true if the old image needs to be disposed, when using undo this should not be true!!</param>
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private void SetImage(Image newImage, bool dispose)
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{
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// Dispose
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if (image != null && dispose)
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{
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image.Dispose();
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}
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// Set new values
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Image = newImage;
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Size = newImage.Size;
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modified = true;
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}
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/// <summary>
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/// Surface constructor with an image
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/// </summary>
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/// <param name="newImage"></param>
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public Surface(Image newImage)
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: this()
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{
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LOG.DebugFormat("Got image with dimensions {0} and format {1}", newImage.Size, newImage.PixelFormat);
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SetImage(newImage, true);
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}
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/// <summary>
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/// Surface contructor with a capture
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/// </summary>
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/// <param name="capture"></param>
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public Surface(ICapture capture)
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: this(capture.Image)
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{
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// check if cursor is captured, and visible
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if (capture.Cursor != null && capture.CursorVisible)
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{
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Rectangle cursorRect = new Rectangle(capture.CursorLocation, capture.Cursor.Size);
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Rectangle captureRect = new Rectangle(Point.Empty, capture.Image.Size);
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// check if cursor is on the capture, otherwise we leave it out.
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if (cursorRect.IntersectsWith(captureRect))
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{
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cursorContainer = AddIconContainer(capture.Cursor, capture.CursorLocation.X, capture.CursorLocation.Y);
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SelectElement(cursorContainer);
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}
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}
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// Make sure the image is NOT disposed, we took the reference directly into ourselves
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((Capture)capture).NullImage();
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captureDetails = capture.CaptureDetails;
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}
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protected override void Dispose(bool disposing)
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{
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if (disposing)
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{
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Count--;
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LOG.Debug("Disposing surface!");
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if (buffer != null)
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{
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buffer.Dispose();
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buffer = null;
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}
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if (transparencyBackgroundBrush != null)
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{
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transparencyBackgroundBrush.Dispose();
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transparencyBackgroundBrush = null;
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}
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// Cleanup undo/redo stacks
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while (undoStack != null && undoStack.Count > 0)
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{
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undoStack.Pop().Dispose();
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}
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while (redoStack != null && redoStack.Count > 0)
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{
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redoStack.Pop().Dispose();
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}
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foreach (IDrawableContainer container in elements)
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{
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container.Dispose();
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}
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if (undrawnElement != null)
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{
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undrawnElement.Dispose();
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undrawnElement = null;
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}
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if (cropContainer != null)
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{
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cropContainer.Dispose();
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cropContainer = null;
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}
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}
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base.Dispose(disposing);
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}
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/// <summary>
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/// Undo the last action
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/// </summary>
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public void Undo()
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{
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if (undoStack.Count > 0)
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{
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inUndoRedo = true;
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IMemento top = undoStack.Pop();
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redoStack.Push(top.Restore());
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inUndoRedo = false;
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}
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}
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/// <summary>
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/// Undo an undo (=redo)
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/// </summary>
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public void Redo()
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{
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if (redoStack.Count > 0)
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{
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inUndoRedo = true;
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IMemento top = redoStack.Pop();
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undoStack.Push(top.Restore());
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inUndoRedo = false;
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}
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}
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/// <summary>
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/// Returns if the surface can do a undo
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/// </summary>
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public bool CanUndo
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{
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get
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|
{
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return undoStack.Count > 0;
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}
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|
}
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/// <summary>
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|
/// Returns if the surface can do a redo
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/// </summary>
|
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public bool CanRedo
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{
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get
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{
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return redoStack.Count > 0;
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}
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}
|
|
|
|
/// <summary>
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/// Get the language key for the undo action
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/// </summary>
|
|
public LangKey UndoActionLanguageKey
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{
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get
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|
{
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if (CanUndo)
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{
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return undoStack.Peek().ActionLanguageKey;
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}
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else
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{
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return LangKey.none;
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}
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}
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}
|
|
|
|
/// <summary>
|
|
/// Get the language key for redo action
|
|
/// </summary>
|
|
public LangKey RedoActionLanguageKey
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|
{
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|
get
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|
{
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|
if (CanRedo)
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{
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return redoStack.Peek().ActionLanguageKey;
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|
}
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|
else
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|
{
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return LangKey.none;
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}
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|
}
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|
}
|
|
|
|
/// <summary>
|
|
/// Make an action undo-able
|
|
/// </summary>
|
|
/// <param name="memento">The memento implementing the undo</param>
|
|
public void MakeUndoable(IMemento memento, bool allowMerge)
|
|
{
|
|
if (inUndoRedo)
|
|
{
|
|
throw new InvalidOperationException("Invoking do within an undo/redo action.");
|
|
}
|
|
if (memento != null)
|
|
{
|
|
bool allowPush = true;
|
|
if (undoStack.Count > 0 && allowMerge)
|
|
{
|
|
// Check if merge is possible
|
|
allowPush = !undoStack.Peek().Merge(memento);
|
|
}
|
|
if (allowPush)
|
|
{
|
|
// Clear the redo-stack and dispose
|
|
while (redoStack.Count > 0)
|
|
{
|
|
redoStack.Pop().Dispose();
|
|
}
|
|
undoStack.Push(memento);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This saves the elements of this surface to a stream.
|
|
/// Is used to save a template of the complete surface
|
|
/// </summary>
|
|
/// <param name="streamWrite"></param>
|
|
/// <returns></returns>
|
|
public long SaveElementsToStream(Stream streamWrite)
|
|
{
|
|
long bytesWritten = 0;
|
|
try
|
|
{
|
|
long lengtBefore = streamWrite.Length;
|
|
BinaryFormatter binaryWrite = new BinaryFormatter();
|
|
binaryWrite.Serialize(streamWrite, elements);
|
|
bytesWritten = streamWrite.Length - lengtBefore;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
LOG.Error("Error serializing elements to stream.", e);
|
|
}
|
|
return bytesWritten;
|
|
}
|
|
|
|
/// <summary>
|
|
/// This loads elements from a stream, among others this is used to load a surface.
|
|
/// </summary>
|
|
/// <param name="streamRead"></param>
|
|
public void LoadElementsFromStream(Stream streamRead)
|
|
{
|
|
try
|
|
{
|
|
BinaryFormatter binaryRead = new BinaryFormatter();
|
|
DrawableContainerList loadedElements = (DrawableContainerList)binaryRead.Deserialize(streamRead);
|
|
if (loadedElements != null)
|
|
{
|
|
loadedElements.Parent = this;
|
|
DeselectAllElements();
|
|
AddElements(loadedElements);
|
|
SelectElements(loadedElements);
|
|
FieldAggregator.BindElements(loadedElements);
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
LOG.Error("Error serializing elements from stream.", e);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This is called from the DrawingMode setter, which is not very correct...
|
|
/// But here an element is created which is not yet draw, thus "undrawnElement".
|
|
/// The element is than used while drawing on the surface.
|
|
/// </summary>
|
|
private void CreateUndrawnElement()
|
|
{
|
|
if (undrawnElement != null)
|
|
{
|
|
FieldAggregator.UnbindElement(undrawnElement);
|
|
}
|
|
switch (DrawingMode)
|
|
{
|
|
case DrawingModes.Rect:
|
|
undrawnElement = new RectangleContainer(this);
|
|
break;
|
|
case DrawingModes.Ellipse:
|
|
undrawnElement = new EllipseContainer(this);
|
|
break;
|
|
case DrawingModes.Text:
|
|
undrawnElement = new TextContainer(this);
|
|
break;
|
|
case DrawingModes.Line:
|
|
undrawnElement = new LineContainer(this);
|
|
break;
|
|
case DrawingModes.Arrow:
|
|
undrawnElement = new ArrowContainer(this);
|
|
break;
|
|
case DrawingModes.Highlight:
|
|
undrawnElement = new HighlightContainer(this);
|
|
break;
|
|
case DrawingModes.Obfuscate:
|
|
undrawnElement = new ObfuscateContainer(this);
|
|
break;
|
|
case DrawingModes.Crop:
|
|
cropContainer = new CropContainer(this);
|
|
undrawnElement = cropContainer;
|
|
break;
|
|
case DrawingModes.Bitmap:
|
|
undrawnElement = new ImageContainer(this);
|
|
break;
|
|
case DrawingModes.Path:
|
|
undrawnElement = new FreehandContainer(this);
|
|
break;
|
|
case DrawingModes.None:
|
|
undrawnElement = null;
|
|
break;
|
|
}
|
|
if (undrawnElement != null)
|
|
{
|
|
FieldAggregator.BindElement(undrawnElement);
|
|
}
|
|
}
|
|
|
|
#region Plugin interface implementations
|
|
|
|
public IImageContainer AddImageContainer(Image image, int x, int y)
|
|
{
|
|
ImageContainer bitmapContainer = new ImageContainer(this);
|
|
bitmapContainer.Image = image;
|
|
bitmapContainer.Left = x;
|
|
bitmapContainer.Top = y;
|
|
AddElement(bitmapContainer);
|
|
return bitmapContainer;
|
|
}
|
|
|
|
public IImageContainer AddImageContainer(string filename, int x, int y)
|
|
{
|
|
ImageContainer bitmapContainer = new ImageContainer(this);
|
|
bitmapContainer.Load(filename);
|
|
bitmapContainer.Left = x;
|
|
bitmapContainer.Top = y;
|
|
AddElement(bitmapContainer);
|
|
return bitmapContainer;
|
|
}
|
|
|
|
public IIconContainer AddIconContainer(Icon icon, int x, int y)
|
|
{
|
|
IconContainer iconContainer = new IconContainer(this);
|
|
iconContainer.Icon = icon;
|
|
iconContainer.Left = x;
|
|
iconContainer.Top = y;
|
|
AddElement(iconContainer);
|
|
return iconContainer;
|
|
}
|
|
|
|
public IIconContainer AddIconContainer(string filename, int x, int y)
|
|
{
|
|
IconContainer iconContainer = new IconContainer(this);
|
|
iconContainer.Load(filename);
|
|
iconContainer.Left = x;
|
|
iconContainer.Top = y;
|
|
AddElement(iconContainer);
|
|
return iconContainer;
|
|
}
|
|
|
|
public ICursorContainer AddCursorContainer(Cursor cursor, int x, int y)
|
|
{
|
|
CursorContainer cursorContainer = new CursorContainer(this);
|
|
cursorContainer.Cursor = cursor;
|
|
cursorContainer.Left = x;
|
|
cursorContainer.Top = y;
|
|
AddElement(cursorContainer);
|
|
return cursorContainer;
|
|
}
|
|
|
|
public ICursorContainer AddCursorContainer(string filename, int x, int y)
|
|
{
|
|
CursorContainer cursorContainer = new CursorContainer(this);
|
|
cursorContainer.Load(filename);
|
|
cursorContainer.Left = x;
|
|
cursorContainer.Top = y;
|
|
AddElement(cursorContainer);
|
|
return cursorContainer;
|
|
}
|
|
|
|
public ITextContainer AddTextContainer(string text, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment, FontFamily family, float size, bool italic, bool bold, bool shadow, int borderSize, Color color, Color fillColor)
|
|
{
|
|
TextContainer textContainer = new TextContainer(this);
|
|
textContainer.Text = text;
|
|
textContainer.SetFieldValue(FieldType.FONT_FAMILY, family.Name);
|
|
textContainer.SetFieldValue(FieldType.FONT_BOLD, bold);
|
|
textContainer.SetFieldValue(FieldType.FONT_ITALIC, italic);
|
|
textContainer.SetFieldValue(FieldType.FONT_SIZE, size);
|
|
textContainer.SetFieldValue(FieldType.FILL_COLOR, fillColor);
|
|
textContainer.SetFieldValue(FieldType.LINE_COLOR, color);
|
|
textContainer.SetFieldValue(FieldType.LINE_THICKNESS, borderSize);
|
|
textContainer.SetFieldValue(FieldType.SHADOW, shadow);
|
|
// Make sure the Text fits
|
|
textContainer.FitToText();
|
|
// Align to Surface
|
|
textContainer.AlignToParent(horizontalAlignment, verticalAlignment);
|
|
|
|
//AggregatedProperties.UpdateElement(textContainer);
|
|
AddElement(textContainer);
|
|
return textContainer;
|
|
}
|
|
|
|
#endregion Plugin interface implementations
|
|
|
|
#region DragDrop
|
|
|
|
private void OnDragEnter(object sender, DragEventArgs e)
|
|
{
|
|
if (LOG.IsDebugEnabled)
|
|
{
|
|
LOG.Debug("DragEnter got following formats: ");
|
|
foreach (string format in ClipboardHelper.GetFormats(e.Data))
|
|
{
|
|
LOG.Debug(format);
|
|
}
|
|
}
|
|
if (draggingInProgress || (e.AllowedEffect & DragDropEffects.Copy) != DragDropEffects.Copy)
|
|
{
|
|
e.Effect = DragDropEffects.None;
|
|
}
|
|
else
|
|
{
|
|
if (ClipboardHelper.ContainsImage(e.Data) || ClipboardHelper.ContainsFormat(e.Data, "DragImageBits"))
|
|
{
|
|
e.Effect = DragDropEffects.Copy;
|
|
}
|
|
else
|
|
{
|
|
e.Effect = DragDropEffects.None;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handle the drag/drop
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void OnDragDrop(object sender, DragEventArgs e)
|
|
{
|
|
List<string> filenames = ClipboardHelper.GetImageFilenames(e.Data);
|
|
Point mouse = PointToClient(new Point(e.X, e.Y));
|
|
|
|
foreach (Image image in ClipboardHelper.GetImages(e.Data))
|
|
{
|
|
AddImageContainer(image, mouse.X, mouse.Y);
|
|
mouse.Offset(10, 10);
|
|
image.Dispose();
|
|
}
|
|
}
|
|
|
|
// private void QueryContinueDragDrop(object sender, QueryContinueDragEventArgs e) {
|
|
// LOG.Debug("QueryContinueDrag: " + e.Action);
|
|
// if (e.EscapePressed) {
|
|
// e.Action = DragAction.Cancel;
|
|
// }
|
|
// }
|
|
//
|
|
// private void GiveFeedbackDragDrop(object sender, GiveFeedbackEventArgs e) {
|
|
// e.UseDefaultCursors = true;
|
|
// }
|
|
|
|
#endregion DragDrop
|
|
|
|
/// <summary>
|
|
/// Auto crop the image
|
|
/// </summary>
|
|
/// <returns>true if cropped</returns>
|
|
public bool AutoCrop()
|
|
{
|
|
Rectangle cropRectangle = ImageHelper.FindAutoCropRectangle(Image, conf.AutoCropDifference);
|
|
if (isCropPossible(ref cropRectangle))
|
|
{
|
|
DeselectAllElements();
|
|
// Maybe a bit obscure, but the following line creates a drop container
|
|
// It's available as "undrawnElement"
|
|
DrawingMode = DrawingModes.Crop;
|
|
undrawnElement.Left = cropRectangle.X;
|
|
undrawnElement.Top = cropRectangle.Y;
|
|
undrawnElement.Width = cropRectangle.Width;
|
|
undrawnElement.Height = cropRectangle.Height;
|
|
undrawnElement.Status = EditStatus.UNDRAWN;
|
|
AddElement(undrawnElement);
|
|
SelectElement(undrawnElement);
|
|
drawingElement = null;
|
|
undrawnElement = null;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// A simple clear
|
|
/// </summary>
|
|
/// <param name="newColor">The color for the background</param>
|
|
public void Clear(Color newColor)
|
|
{
|
|
//create a blank bitmap the same size as original
|
|
Bitmap newBitmap = ImageHelper.CreateEmptyLike((Bitmap)Image, Color.Empty);
|
|
if (newBitmap != null)
|
|
{
|
|
// Make undoable
|
|
MakeUndoable(new SurfaceBackgroundChangeMemento(this, Point.Empty), false);
|
|
SetImage(newBitmap, false);
|
|
Invalidate();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Apply a bitmap effect to the surface
|
|
/// </summary>
|
|
/// <param name="effect"></param>
|
|
public void ApplyBitmapEffect(IEffect effect)
|
|
{
|
|
BackgroundForm backgroundForm = new BackgroundForm("Effect", "Please wait");
|
|
backgroundForm.Show();
|
|
Application.DoEvents();
|
|
try
|
|
{
|
|
Rectangle imageRectangle = new Rectangle(Point.Empty, Image.Size);
|
|
Point offset;
|
|
Image newImage = ImageHelper.ApplyEffect(Image, effect, out offset);
|
|
if (newImage != null)
|
|
{
|
|
// Make sure the elements move according to the offset the effect made the bitmap move
|
|
elements.MoveBy(offset.X, offset.Y);
|
|
// Make undoable
|
|
MakeUndoable(new SurfaceBackgroundChangeMemento(this, offset), false);
|
|
SetImage(newImage, false);
|
|
Invalidate();
|
|
if (surfaceSizeChanged != null && !imageRectangle.Equals(new Rectangle(Point.Empty, newImage.Size)))
|
|
{
|
|
surfaceSizeChanged(this, null);
|
|
}
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
// Always close the background form
|
|
backgroundForm.CloseDialog();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// check if a crop is possible
|
|
/// </summary>
|
|
/// <param name="cropRectangle"></param>
|
|
/// <returns>true if this is possible</returns>
|
|
public bool isCropPossible(ref Rectangle cropRectangle)
|
|
{
|
|
cropRectangle = GuiRectangle.GetGuiRectangle(cropRectangle.Left, cropRectangle.Top, cropRectangle.Width, cropRectangle.Height);
|
|
if (cropRectangle.Left < 0)
|
|
{
|
|
cropRectangle = new Rectangle(0, cropRectangle.Top, cropRectangle.Width + cropRectangle.Left, cropRectangle.Height);
|
|
}
|
|
if (cropRectangle.Top < 0)
|
|
{
|
|
cropRectangle = new Rectangle(cropRectangle.Left, 0, cropRectangle.Width, cropRectangle.Height + cropRectangle.Top);
|
|
}
|
|
if (cropRectangle.Left + cropRectangle.Width > Width)
|
|
{
|
|
cropRectangle = new Rectangle(cropRectangle.Left, cropRectangle.Top, Width - cropRectangle.Left, cropRectangle.Height);
|
|
}
|
|
if (cropRectangle.Top + cropRectangle.Height > Height)
|
|
{
|
|
cropRectangle = new Rectangle(cropRectangle.Left, cropRectangle.Top, cropRectangle.Width, Height - cropRectangle.Top);
|
|
}
|
|
if (cropRectangle.Height > 0 && cropRectangle.Width > 0)
|
|
{
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Use to send any registered SurfaceMessageEventHandler a message, e.g. used for the notification area
|
|
/// </summary>
|
|
/// <param name="source">Who send</param>
|
|
/// <param name="messageType">Type of message</param>
|
|
/// <param name="message">Message itself</param>
|
|
public void SendMessageEvent(object source, SurfaceMessageTyp messageType, string message)
|
|
{
|
|
if (surfaceMessage != null)
|
|
{
|
|
SurfaceMessageEventArgs eventArgs = new SurfaceMessageEventArgs();
|
|
eventArgs.Message = message;
|
|
eventArgs.MessageType = messageType;
|
|
eventArgs.Surface = this;
|
|
surfaceMessage(source, eventArgs);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Crop the surface
|
|
/// </summary>
|
|
/// <param name="cropRectangle"></param>
|
|
/// <returns></returns>
|
|
public bool ApplyCrop(Rectangle cropRectangle)
|
|
{
|
|
if (isCropPossible(ref cropRectangle))
|
|
{
|
|
Rectangle imageRectangle = new Rectangle(Point.Empty, Image.Size);
|
|
Bitmap tmpImage;
|
|
// Make sure we have information, this this fails
|
|
try
|
|
{
|
|
tmpImage = ImageHelper.CloneArea(Image, cropRectangle, PixelFormat.DontCare);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
ex.Data.Add("CropRectangle", cropRectangle);
|
|
ex.Data.Add("Width", Image.Width);
|
|
ex.Data.Add("Height", Image.Height);
|
|
ex.Data.Add("Pixelformat", Image.PixelFormat);
|
|
throw;
|
|
}
|
|
|
|
Point offset = new Point(-cropRectangle.Left, -cropRectangle.Top);
|
|
// Make undoable
|
|
MakeUndoable(new SurfaceBackgroundChangeMemento(this, offset), false);
|
|
|
|
// Do not dispose otherwise we can't undo the image!
|
|
SetImage(tmpImage, false);
|
|
elements.MoveBy(offset.X, offset.Y);
|
|
if (surfaceSizeChanged != null && !imageRectangle.Equals(new Rectangle(Point.Empty, tmpImage.Size)))
|
|
{
|
|
surfaceSizeChanged(this, null);
|
|
}
|
|
Invalidate();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The background here is the captured image.
|
|
/// This is called from the SurfaceBackgroundChangeMemento.
|
|
/// </summary>
|
|
/// <param name="previous"></param>
|
|
/// <param name="offset"></param>
|
|
public void UndoBackgroundChange(Image previous, Point offset)
|
|
{
|
|
SetImage(previous, false);
|
|
elements.MoveBy(offset.X, offset.Y);
|
|
if (surfaceSizeChanged != null)
|
|
{
|
|
surfaceSizeChanged(this, null);
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
/// <summary>
|
|
/// This event handler is called when someone presses the mouse on a surface.
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void SurfaceMouseDown(object sender, MouseEventArgs e)
|
|
{
|
|
mouseStart = e.Location;
|
|
|
|
// check contextmenu
|
|
if (e.Button == MouseButtons.Right)
|
|
{
|
|
DrawableContainerList selectedList = null;
|
|
if (selectedElements != null && selectedElements.Count > 0)
|
|
{
|
|
selectedList = selectedElements;
|
|
}
|
|
else
|
|
{
|
|
// Single element
|
|
IDrawableContainer rightClickedContainer = elements.ClickableElementAt(mouseStart.X, mouseStart.Y);
|
|
if (rightClickedContainer != null)
|
|
{
|
|
selectedList = new DrawableContainerList();
|
|
selectedList.Add(rightClickedContainer);
|
|
}
|
|
}
|
|
if (selectedList != null && selectedList.Count > 0)
|
|
{
|
|
selectedList.ShowContextMenu(e, this);
|
|
}
|
|
return;
|
|
}
|
|
|
|
mouseDown = true;
|
|
isSurfaceMoveMadeUndoable = false;
|
|
|
|
if (cropContainer != null && ((undrawnElement == null) || (undrawnElement != null && DrawingMode != DrawingModes.Crop)))
|
|
{
|
|
RemoveElement(cropContainer, false);
|
|
cropContainer = null;
|
|
drawingElement = null;
|
|
}
|
|
|
|
if (drawingElement == null && DrawingMode != DrawingModes.None)
|
|
{
|
|
if (undrawnElement == null)
|
|
{
|
|
DeselectAllElements();
|
|
if (undrawnElement == null)
|
|
{
|
|
CreateUndrawnElement();
|
|
}
|
|
}
|
|
drawingElement = undrawnElement;
|
|
drawingElement.Status = EditStatus.DRAWING;
|
|
undrawnElement = null;
|
|
// if a new element has been drawn, set location and register it
|
|
if (drawingElement != null)
|
|
{
|
|
drawingElement.PropertyChanged += ElementPropertyChanged;
|
|
if (!drawingElement.HandleMouseDown(mouseStart.X, mouseStart.Y))
|
|
{
|
|
drawingElement.Left = mouseStart.X;
|
|
drawingElement.Top = mouseStart.Y;
|
|
}
|
|
AddElement(drawingElement);
|
|
drawingElement.Selected = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// check whether an existing element was clicked
|
|
// we save mouse down element separately from selectedElements (checked on mouse up),
|
|
// since it could be moved around before it is actually selected
|
|
mouseDownElement = elements.ClickableElementAt(mouseStart.X, mouseStart.Y);
|
|
|
|
if (mouseDownElement != null)
|
|
{
|
|
mouseDownElement.Status = EditStatus.MOVING;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This event handle is called when the mouse button is unpressed
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void SurfaceMouseUp(object sender, MouseEventArgs e)
|
|
{
|
|
Point currentMouse = new Point(e.X, e.Y);
|
|
|
|
elements.Status = EditStatus.IDLE;
|
|
if (mouseDownElement != null)
|
|
{
|
|
mouseDownElement.Status = EditStatus.IDLE;
|
|
}
|
|
mouseDown = false;
|
|
mouseDownElement = null;
|
|
if (DrawingMode == DrawingModes.None)
|
|
{
|
|
// check whether an existing element was clicked
|
|
IDrawableContainer element = elements.ClickableElementAt(currentMouse.X, currentMouse.Y);
|
|
bool shiftModifier = (ModifierKeys & Keys.Shift) == Keys.Shift;
|
|
if (element != null)
|
|
{
|
|
element.Invalidate();
|
|
bool alreadySelected = selectedElements.Contains(element);
|
|
if (shiftModifier)
|
|
{
|
|
if (alreadySelected)
|
|
{
|
|
DeselectElement(element);
|
|
}
|
|
else
|
|
{
|
|
SelectElement(element);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!alreadySelected)
|
|
{
|
|
DeselectAllElements();
|
|
SelectElement(element);
|
|
}
|
|
}
|
|
}
|
|
else if (!shiftModifier)
|
|
{
|
|
DeselectAllElements();
|
|
}
|
|
}
|
|
|
|
if (selectedElements.Count > 0)
|
|
{
|
|
selectedElements.ShowGrippers();
|
|
selectedElements.Selected = true;
|
|
}
|
|
|
|
if (drawingElement != null)
|
|
{
|
|
if (!drawingElement.InitContent())
|
|
{
|
|
elements.Remove(drawingElement);
|
|
drawingElement.Invalidate();
|
|
}
|
|
else
|
|
{
|
|
drawingElement.HandleMouseUp(currentMouse.X, currentMouse.Y);
|
|
drawingElement.Invalidate();
|
|
if (Math.Abs(drawingElement.Width) < 5 && Math.Abs(drawingElement.Height) < 5)
|
|
{
|
|
drawingElement.Width = 25;
|
|
drawingElement.Height = 25;
|
|
}
|
|
SelectElement(drawingElement);
|
|
drawingElement.Selected = true;
|
|
}
|
|
drawingElement = null;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This event handler is called when the mouse moves over the surface
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void SurfaceMouseMove(object sender, MouseEventArgs e)
|
|
{
|
|
Point currentMouse = e.Location;
|
|
|
|
if (DrawingMode != DrawingModes.None)
|
|
{
|
|
Cursor = Cursors.Cross;
|
|
}
|
|
else
|
|
{
|
|
Cursor = Cursors.Default;
|
|
}
|
|
|
|
if (mouseDown)
|
|
{
|
|
if (mouseDownElement != null)
|
|
{ // an element is currently dragged
|
|
mouseDownElement.Invalidate();
|
|
selectedElements.HideGrippers();
|
|
// Move the element
|
|
if (mouseDownElement.Selected)
|
|
{
|
|
if (!isSurfaceMoveMadeUndoable)
|
|
{
|
|
// Only allow one undoable per mouse-down/move/up "cycle"
|
|
isSurfaceMoveMadeUndoable = true;
|
|
selectedElements.MakeBoundsChangeUndoable(false);
|
|
}
|
|
// dragged element has been selected before -> move all
|
|
selectedElements.MoveBy(currentMouse.X - mouseStart.X, currentMouse.Y - mouseStart.Y);
|
|
}
|
|
else
|
|
{
|
|
if (!isSurfaceMoveMadeUndoable)
|
|
{
|
|
// Only allow one undoable per mouse-down/move/up "cycle"
|
|
isSurfaceMoveMadeUndoable = true;
|
|
mouseDownElement.MakeBoundsChangeUndoable(false);
|
|
}
|
|
// dragged element is not among selected elements -> just move dragged one
|
|
mouseDownElement.MoveBy(currentMouse.X - mouseStart.X, currentMouse.Y - mouseStart.Y);
|
|
}
|
|
mouseStart = currentMouse;
|
|
mouseDownElement.Invalidate();
|
|
modified = true;
|
|
}
|
|
else if (drawingElement != null)
|
|
{
|
|
drawingElement.HandleMouseMove(currentMouse.X, currentMouse.Y);
|
|
modified = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This event handler is called when the surface is double clicked.
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void SurfaceDoubleClick(object sender, MouseEventArgs e)
|
|
{
|
|
selectedElements.OnDoubleClick();
|
|
selectedElements.Invalidate();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Privately used to get the rendered image with all the elements on it.
|
|
/// </summary>
|
|
/// <param name="renderMode"></param>
|
|
/// <returns></returns>
|
|
private Image GetImage(RenderMode renderMode)
|
|
{
|
|
// Generate a copy of the original image with a dpi equal to the default...
|
|
Bitmap clone = ImageHelper.Clone(image, PixelFormat.DontCare);
|
|
// otherwise we would have a problem drawing the image to the surface... :(
|
|
using (Graphics graphics = Graphics.FromImage(clone))
|
|
{
|
|
// Do not set the following, the containers need to decide themselves
|
|
//graphics.SmoothingMode = SmoothingMode.HighQuality;
|
|
//graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
|
|
//graphics.CompositingQuality = CompositingQuality.HighQuality;
|
|
//graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
|
|
elements.Draw(graphics, clone, renderMode, new Rectangle(Point.Empty, clone.Size));
|
|
}
|
|
return clone;
|
|
}
|
|
|
|
/// <summary>
|
|
/// This returns the image "result" of this surface, with all the elements rendered on it.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public Image GetImageForExport()
|
|
{
|
|
return GetImage(RenderMode.EXPORT);
|
|
}
|
|
|
|
/// <summary>
|
|
/// This is the event handler for the Paint Event, try to draw as little as possible!
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void SurfacePaint(object sender, PaintEventArgs e)
|
|
{
|
|
Graphics targetGraphics = e.Graphics;
|
|
Rectangle clipRectangle = e.ClipRectangle;
|
|
if (Rectangle.Empty.Equals(clipRectangle))
|
|
{
|
|
LOG.Debug("Empty cliprectangle??");
|
|
return;
|
|
}
|
|
|
|
if (elements.hasIntersectingFilters(clipRectangle))
|
|
{
|
|
if (buffer != null)
|
|
{
|
|
if (buffer.Width != Image.Width || buffer.Height != Image.Height || buffer.PixelFormat != Image.PixelFormat)
|
|
{
|
|
buffer.Dispose();
|
|
buffer = null;
|
|
}
|
|
}
|
|
if (buffer == null)
|
|
{
|
|
buffer = ImageHelper.CreateEmpty(Image.Width, Image.Height, Image.PixelFormat, Color.Empty, Image.HorizontalResolution, Image.VerticalResolution);
|
|
LOG.DebugFormat("Created buffer with size: {0}x{1}", Image.Width, Image.Height);
|
|
}
|
|
// Elements might need the bitmap, so we copy the part we need
|
|
using (Graphics graphics = Graphics.FromImage(buffer))
|
|
{
|
|
// do not set the following, the containers need to decide this themselves!
|
|
//graphics.SmoothingMode = SmoothingMode.HighQuality;
|
|
//graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
|
|
//graphics.CompositingQuality = CompositingQuality.HighQuality;
|
|
//graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
|
|
graphics.DrawImage(Image, clipRectangle, clipRectangle, GraphicsUnit.Pixel);
|
|
graphics.SetClip(targetGraphics);
|
|
elements.Draw(graphics, buffer, RenderMode.EDIT, clipRectangle);
|
|
}
|
|
targetGraphics.DrawImage(buffer, clipRectangle, clipRectangle, GraphicsUnit.Pixel);
|
|
}
|
|
else
|
|
{
|
|
targetGraphics.DrawImage(Image, clipRectangle, clipRectangle, GraphicsUnit.Pixel);
|
|
elements.Draw(targetGraphics, null, RenderMode.EDIT, clipRectangle);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Draw a checkboard when capturing with transparency
|
|
/// </summary>
|
|
/// <param name="e">PaintEventArgs</param>
|
|
protected override void OnPaintBackground(PaintEventArgs e)
|
|
{
|
|
// check if we need to draw the checkerboard
|
|
if (Image.IsAlphaPixelFormat(Image.PixelFormat) && transparencyBackgroundBrush != null)
|
|
{
|
|
Graphics targetGraphics = e.Graphics;
|
|
Rectangle clipRectangle = e.ClipRectangle;
|
|
targetGraphics.FillRectangle(transparencyBackgroundBrush, clipRectangle);
|
|
}
|
|
else
|
|
{
|
|
Graphics targetGraphics = e.Graphics;
|
|
targetGraphics.Clear(BackColor);
|
|
//base.OnPaintBackground(e);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Wrapper for makeUndoable flag which was introduced later, will call AddElement with makeundoable set to true
|
|
/// </summary>
|
|
/// <param name="element">the new element</param>
|
|
public void AddElement(IDrawableContainer element)
|
|
{
|
|
AddElement(element, true);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add a new element to the surface
|
|
/// </summary>
|
|
/// <param name="element">the new element</param>
|
|
/// <param name="makeUndoable">true if the adding should be undoable</param>
|
|
public void AddElement(IDrawableContainer element, bool makeUndoable)
|
|
{
|
|
elements.Add(element);
|
|
DrawableContainer container = element as DrawableContainer;
|
|
if (container != null)
|
|
{
|
|
container.FieldChanged += element_FieldChanged;
|
|
}
|
|
element.PropertyChanged += ElementPropertyChanged;
|
|
if (element.Status == EditStatus.UNDRAWN)
|
|
{
|
|
element.Status = EditStatus.IDLE;
|
|
}
|
|
element.Invalidate();
|
|
if (makeUndoable)
|
|
{
|
|
MakeUndoable(new AddElementMemento(this, element), false);
|
|
}
|
|
modified = true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Remove an element of the elements list
|
|
/// </summary>
|
|
/// <param name="elementToRemove">Element to remove</param>
|
|
/// <param name="makeUndoable">flag specifying if the remove needs to be undoable</param>
|
|
public void RemoveElement(IDrawableContainer elementToRemove, bool makeUndoable)
|
|
{
|
|
DeselectElement(elementToRemove);
|
|
elements.Remove(elementToRemove);
|
|
DrawableContainer element = elementToRemove as DrawableContainer;
|
|
if (element != null)
|
|
{
|
|
element.FieldChanged -= element_FieldChanged;
|
|
}
|
|
elementToRemove.PropertyChanged -= ElementPropertyChanged;
|
|
// Do not dispose, the memento should!! element.Dispose();
|
|
elementToRemove.Invalidate();
|
|
if (makeUndoable)
|
|
{
|
|
MakeUndoable(new DeleteElementMemento(this, elementToRemove), false);
|
|
}
|
|
modified = true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add the supplied elements to the surface
|
|
/// </summary>
|
|
/// <param name="elementsToAdd"></param>
|
|
public void AddElements(DrawableContainerList elementsToAdd)
|
|
{
|
|
foreach (IDrawableContainer element in elementsToAdd)
|
|
{
|
|
AddElement(element, true);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns if this surface has selected elements
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public bool HasSelectedElements
|
|
{
|
|
get
|
|
{
|
|
return (selectedElements != null && selectedElements.Count > 0);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Remove all the selected elements
|
|
/// </summary>
|
|
public void RemoveSelectedElements()
|
|
{
|
|
if (HasSelectedElements)
|
|
{
|
|
// As RemoveElement will remove the element from the selectedElements list we need to copy the element
|
|
// to another list.
|
|
List<DrawableContainer> elementsToRemove = new List<DrawableContainer>();
|
|
foreach (DrawableContainer element in selectedElements)
|
|
{
|
|
// Collect to remove later
|
|
elementsToRemove.Add(element);
|
|
}
|
|
// Remove now
|
|
foreach (DrawableContainer element in elementsToRemove)
|
|
{
|
|
RemoveElement(element, true);
|
|
}
|
|
selectedElements.Clear();
|
|
if (movingElementChanged != null)
|
|
{
|
|
SurfaceElementEventArgs eventArgs = new SurfaceElementEventArgs();
|
|
eventArgs.Elements = selectedElements;
|
|
movingElementChanged(this, eventArgs);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Cut the selected elements from the surface to the clipboard
|
|
/// </summary>
|
|
public void CutSelectedElements()
|
|
{
|
|
if (HasSelectedElements)
|
|
{
|
|
ClipboardHelper.SetClipboardData(typeof(DrawableContainerList), selectedElements);
|
|
RemoveSelectedElements();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Copy the selected elements to the clipboard
|
|
/// </summary>
|
|
public void CopySelectedElements()
|
|
{
|
|
if (HasSelectedElements)
|
|
{
|
|
ClipboardHelper.SetClipboardData(typeof(DrawableContainerList), selectedElements);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This method is called to confirm/cancel "confirmable" elements, like the crop-container.
|
|
/// Called when pressing enter or using the "check" in the editor.
|
|
/// </summary>
|
|
/// <param name="confirm"></param>
|
|
public void ConfirmSelectedConfirmableElements(bool confirm)
|
|
{
|
|
// create new collection so that we can iterate safely (selectedElements might change due with confirm/cancel)
|
|
List<IDrawableContainer> selectedDCs = new List<IDrawableContainer>(selectedElements);
|
|
foreach (IDrawableContainer dc in selectedDCs)
|
|
{
|
|
if (dc.Equals(cropContainer))
|
|
{
|
|
DrawingMode = DrawingModes.None;
|
|
// No undo memento for the cropcontainer itself, only for the effect
|
|
RemoveElement(cropContainer, false);
|
|
if (confirm)
|
|
{
|
|
ApplyCrop(cropContainer.Bounds);
|
|
}
|
|
cropContainer.Dispose();
|
|
cropContainer = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Paste all the elements that are on the clipboard
|
|
/// </summary>
|
|
public void PasteElementFromClipboard()
|
|
{
|
|
IDataObject clipboard = ClipboardHelper.GetDataObject();
|
|
|
|
List<string> formats = ClipboardHelper.GetFormats(clipboard);
|
|
if (formats == null || formats.Count == 0)
|
|
{
|
|
return;
|
|
}
|
|
if (LOG.IsDebugEnabled)
|
|
{
|
|
LOG.Debug("List of clipboard formats available for pasting:");
|
|
foreach (string format in formats)
|
|
{
|
|
LOG.Debug("\tgot format: " + format);
|
|
}
|
|
}
|
|
|
|
if (formats.Contains(typeof(DrawableContainerList).FullName))
|
|
{
|
|
DrawableContainerList dcs = (DrawableContainerList)ClipboardHelper.GetFromDataObject(clipboard, typeof(DrawableContainerList));
|
|
if (dcs != null)
|
|
{
|
|
dcs.Parent = this;
|
|
dcs.MoveBy(10, 10);
|
|
AddElements(dcs);
|
|
FieldAggregator.BindElements(dcs);
|
|
DeselectAllElements();
|
|
SelectElements(dcs);
|
|
}
|
|
}
|
|
else if (ClipboardHelper.ContainsImage(clipboard))
|
|
{
|
|
int x = 10;
|
|
int y = 10;
|
|
foreach (Image clipboardImage in ClipboardHelper.GetImages(clipboard))
|
|
{
|
|
if (clipboardImage != null)
|
|
{
|
|
DeselectAllElements();
|
|
IImageContainer container = AddImageContainer(clipboardImage as Bitmap, x, y);
|
|
SelectElement(container);
|
|
clipboardImage.Dispose();
|
|
x += 10;
|
|
y += 10;
|
|
}
|
|
}
|
|
}
|
|
else if (ClipboardHelper.ContainsText(clipboard))
|
|
{
|
|
string text = ClipboardHelper.GetText(clipboard);
|
|
if (text != null)
|
|
{
|
|
DeselectAllElements();
|
|
ITextContainer textContainer = AddTextContainer(text, HorizontalAlignment.Center, VerticalAlignment.CENTER,
|
|
FontFamily.GenericSansSerif, 12f, false, false, false, 2, Color.Black, Color.Transparent);
|
|
SelectElement(textContainer);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Duplicate all the selecteded elements
|
|
/// </summary>
|
|
public void DuplicateSelectedElements()
|
|
{
|
|
LOG.DebugFormat("Duplicating {0} selected elements", selectedElements.Count);
|
|
DrawableContainerList dcs = selectedElements.Clone();
|
|
dcs.Parent = this;
|
|
dcs.MoveBy(10, 10);
|
|
AddElements(dcs);
|
|
DeselectAllElements();
|
|
SelectElements(dcs);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Deselect the specified element
|
|
/// </summary>
|
|
/// <param name="container"></param>
|
|
public void DeselectElement(IDrawableContainer container)
|
|
{
|
|
container.HideGrippers();
|
|
container.Selected = false;
|
|
selectedElements.Remove(container);
|
|
FieldAggregator.UnbindElement(container);
|
|
if (movingElementChanged != null)
|
|
{
|
|
SurfaceElementEventArgs eventArgs = new SurfaceElementEventArgs();
|
|
eventArgs.Elements = selectedElements;
|
|
movingElementChanged(this, eventArgs);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Deselect all the selected elements
|
|
/// </summary>
|
|
public void DeselectAllElements()
|
|
{
|
|
if (HasSelectedElements)
|
|
{
|
|
while (selectedElements.Count > 0)
|
|
{
|
|
IDrawableContainer element = selectedElements[0];
|
|
element.Invalidate();
|
|
element.HideGrippers();
|
|
element.Selected = false;
|
|
selectedElements.Remove(element);
|
|
FieldAggregator.UnbindElement(element);
|
|
}
|
|
if (movingElementChanged != null)
|
|
{
|
|
SurfaceElementEventArgs eventArgs = new SurfaceElementEventArgs();
|
|
eventArgs.Elements = selectedElements;
|
|
movingElementChanged(this, eventArgs);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Select the supplied element
|
|
/// </summary>
|
|
/// <param name="container"></param>
|
|
public void SelectElement(IDrawableContainer container)
|
|
{
|
|
if (!selectedElements.Contains(container))
|
|
{
|
|
selectedElements.Add(container);
|
|
container.ShowGrippers();
|
|
container.Selected = true;
|
|
FieldAggregator.BindElement(container);
|
|
if (movingElementChanged != null)
|
|
{
|
|
SurfaceElementEventArgs eventArgs = new SurfaceElementEventArgs();
|
|
eventArgs.Elements = selectedElements;
|
|
movingElementChanged(this, eventArgs);
|
|
}
|
|
container.Invalidate();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Select all elements, this is called when Ctrl+A is pressed
|
|
/// </summary>
|
|
public void SelectAllElements()
|
|
{
|
|
SelectElements(elements);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Select the supplied elements
|
|
/// </summary>
|
|
/// <param name="elements"></param>
|
|
public void SelectElements(DrawableContainerList elements)
|
|
{
|
|
foreach (DrawableContainer element in elements)
|
|
{
|
|
SelectElement(element);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Process key presses on the surface, this is called from the editor (and NOT an override from the Control)
|
|
/// </summary>
|
|
/// <param name="k">Keys</param>
|
|
/// <returns>false if no keys were processed</returns>
|
|
public bool ProcessCmdKey(Keys k)
|
|
{
|
|
if (selectedElements.Count > 0)
|
|
{
|
|
bool shiftModifier = (ModifierKeys & Keys.Shift) == Keys.Shift;
|
|
int px = shiftModifier ? 10 : 1;
|
|
Point moveBy = Point.Empty;
|
|
|
|
switch (k)
|
|
{
|
|
case Keys.Left:
|
|
case Keys.Left | Keys.Shift:
|
|
moveBy = new Point(-px, 0);
|
|
break;
|
|
case Keys.Up:
|
|
case Keys.Up | Keys.Shift:
|
|
moveBy = new Point(0, -px);
|
|
break;
|
|
case Keys.Right:
|
|
case Keys.Right | Keys.Shift:
|
|
moveBy = new Point(px, 0);
|
|
break;
|
|
case Keys.Down:
|
|
case Keys.Down | Keys.Shift:
|
|
moveBy = new Point(0, px);
|
|
break;
|
|
case Keys.PageUp:
|
|
PullElementsUp();
|
|
break;
|
|
case Keys.PageDown:
|
|
PushElementsDown();
|
|
break;
|
|
case Keys.Home:
|
|
PullElementsToTop();
|
|
break;
|
|
case Keys.End:
|
|
PushElementsToBottom();
|
|
break;
|
|
case Keys.Enter:
|
|
ConfirmSelectedConfirmableElements(true);
|
|
break;
|
|
case Keys.Escape:
|
|
ConfirmSelectedConfirmableElements(false);
|
|
break;
|
|
/*case Keys.Delete:
|
|
RemoveSelectedElements();
|
|
break;*/
|
|
default:
|
|
return false;
|
|
}
|
|
if (!Point.Empty.Equals(moveBy))
|
|
{
|
|
selectedElements.MakeBoundsChangeUndoable(true);
|
|
selectedElements.MoveBy(moveBy.X, moveBy.Y);
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Property for accessing the elements on the surface
|
|
/// </summary>
|
|
public DrawableContainerList Elements
|
|
{
|
|
get
|
|
{
|
|
return elements;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// pulls selected elements up one level in hierarchy
|
|
/// </summary>
|
|
public void PullElementsUp()
|
|
{
|
|
elements.PullElementsUp(selectedElements);
|
|
elements.Invalidate();
|
|
}
|
|
|
|
/// <summary>
|
|
/// pushes selected elements up to top in hierarchy
|
|
/// </summary>
|
|
public void PullElementsToTop()
|
|
{
|
|
elements.PullElementsToTop(selectedElements);
|
|
elements.Invalidate();
|
|
}
|
|
|
|
/// <summary>
|
|
/// pushes selected elements down one level in hierarchy
|
|
/// </summary>
|
|
public void PushElementsDown()
|
|
{
|
|
elements.PushElementsDown(selectedElements);
|
|
elements.Invalidate();
|
|
}
|
|
|
|
/// <summary>
|
|
/// pushes selected elements down to bottom in hierarchy
|
|
/// </summary>
|
|
public void PushElementsToBottom()
|
|
{
|
|
elements.PushElementsToBottom(selectedElements);
|
|
elements.Invalidate();
|
|
}
|
|
|
|
/// <summary>
|
|
/// indicates whether the selected elements could be pulled up in hierarchy
|
|
/// </summary>
|
|
/// <returns>true if selected elements could be pulled up, false otherwise</returns>
|
|
public bool CanPullSelectionUp()
|
|
{
|
|
return elements.CanPullUp(selectedElements);
|
|
}
|
|
|
|
/// <summary>
|
|
/// indicates whether the selected elements could be pushed down in hierarchy
|
|
/// </summary>
|
|
/// <returns>true if selected elements could be pushed down, false otherwise</returns>
|
|
public bool CanPushSelectionDown()
|
|
{
|
|
return elements.CanPushDown(selectedElements);
|
|
}
|
|
|
|
public void ElementPropertyChanged(object sender, PropertyChangedEventArgs e)
|
|
{
|
|
//Invalidate();
|
|
}
|
|
|
|
public void element_FieldChanged(object sender, FieldChangedEventArgs e)
|
|
{
|
|
selectedElements.HandleFieldChangedEvent(sender, e);
|
|
}
|
|
}
|
|
} |