/*
 * Greenshot - a free and open source screenshot tool
 * Copyright (C) 2007-2013  Thomas Braun, Jens Klingen, Robin Krom
 *
 * For more information see: http://getgreenshot.org/
 * The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

using Greenshot.Core;
using Greenshot.Plugin.Drawing;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

namespace Greenshot.Plugin
{
    /// <summary>
    /// Alignment Enums for possitioning
    /// </summary>
    //public enum HorizontalAlignment {LEFT, CENTER, RIGHT};
    public enum VerticalAlignment { TOP, CENTER, BOTTOM };

    public enum SurfaceMessageTyp
    {
        FileSaved,
        Error,
        Info,
        UploadedUri
    }

    public class SurfaceMessageEventArgs : EventArgs
    {
        public SurfaceMessageTyp MessageType
        {
            get;
            set;
        }
        public string Message
        {
            get;
            set;
        }
        public ISurface Surface
        {
            get;
            set;
        }
    }

    public class SurfaceElementEventArgs : EventArgs
    {
        public IList<IDrawableContainer> Elements
        {
            get;
            set;
        }
    }

    public class SurfaceDrawingModeEventArgs : EventArgs
    {
        public DrawingModes DrawingMode
        {
            get;
            set;
        }
    }

    public delegate void SurfaceSizeChangeEventHandler(object sender, EventArgs eventArgs);
    public delegate void SurfaceMessageEventHandler(object sender, SurfaceMessageEventArgs eventArgs);
    public delegate void SurfaceElementEventHandler(object sender, SurfaceElementEventArgs eventArgs);
    public delegate void SurfaceDrawingModeEventHandler(object sender, SurfaceDrawingModeEventArgs eventArgs);
    public enum DrawingModes { None, Rect, Ellipse, Text, Line, Arrow, Crop, Highlight, Obfuscate, Bitmap, Path }

    /// <summary>
    /// The interface to the Surface object, so Plugins can use it.
    /// </summary>
    public interface ISurface : IDisposable
    {
        event SurfaceSizeChangeEventHandler SurfaceSizeChanged;
        event SurfaceMessageEventHandler SurfaceMessage;
        event SurfaceDrawingModeEventHandler DrawingModeChanged;
        event SurfaceElementEventHandler MovingElementChanged;

        /// <summary>
        /// Get/Set the image to the Surface
        /// get will give the image as is currently visible
        /// set will overwrite both the visible image as the underlying image
        ///
        /// important notice:
        /// The setter will clone the passed bitmap and dispose it when the Surface is disposed
        /// This means that the supplied image needs to be disposed by the calling code (if needed!)
        /// </summary>
        Image Image
        {
            get;
            set;
        }

        /// <summary>
        /// Get the current Image from the Editor for Exporting (save/upload etc)
        /// Don't forget to call image.Dispose() when finished!!!
        /// </summary>
        /// <returns>Bitmap</returns>
        Image GetImageForExport();

        /// <summary>
        /// Add a TextContainer, at the given location, to the Surface.
        /// The TextContainer will be "re"sized to the text size.
        /// </summary>
        /// <param name="text">String to show</param>
        /// <param name="horizontalAlignment">Left, Center, Right</param>
        /// <param name="verticalAlignment">TOP, CENTER, BOTTOM</param>
        /// <param name="family">FontFamily</param>
        /// <param name="size">Font Size in float</param>
        /// <param name="italic">bool true if italic</param>
        /// <param name="bold">bool true if bold</param>
        /// <param name="shadow">bool true if shadow</param>
        /// <param name="borderSize">size of border (0 for none)</param>
        /// <param name="color">Color of string</param>
        /// <param name="fillColor">Color of background (e.g. Color.Transparent)</param>
        ITextContainer AddTextContainer(string text, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment, FontFamily family, float size, bool italic, bool bold, bool shadow, int borderSize, Color color, Color fillColor);

        IImageContainer AddImageContainer(Image image, int x, int y);

        ICursorContainer AddCursorContainer(Cursor cursor, int x, int y);

        IIconContainer AddIconContainer(Icon icon, int x, int y);

        IImageContainer AddImageContainer(string filename, int x, int y);

        ICursorContainer AddCursorContainer(string filename, int x, int y);

        IIconContainer AddIconContainer(string filename, int x, int y);

        long SaveElementsToStream(Stream stream);

        void LoadElementsFromStream(Stream stream);

        bool HasSelectedElements
        {
            get;
        }

        void RemoveSelectedElements();

        void CutSelectedElements();

        void CopySelectedElements();

        void PasteElementFromClipboard();

        void DuplicateSelectedElements();

        void DeselectElement(IDrawableContainer container);

        void DeselectAllElements();

        void SelectElement(IDrawableContainer container);

        void Invalidate(Rectangle rectangleToInvalidate);

        void Invalidate();

        bool Modified
        {
            get;
            set;
        }
        string LastSaveFullPath
        {
            get;
            set;
        }
        string UploadURL
        {
            get;
            set;
        }

        void RemoveElement(IDrawableContainer elementToRemove, bool makeUndoable);

        void SendMessageEvent(object source, SurfaceMessageTyp messageType, string message);

        void ApplyBitmapEffect(IEffect effect);

        void RemoveCursor();

        bool HasCursor
        {
            get;
        }

        ICaptureDetails CaptureDetails
        {
            get;
            set;
        }
    }
}