source: branches/HeuristicLab.Problems.GaussianProcessTuning/ILNumerics.2.14.4735.573/Drawing/Misc/Events.cs @ 10903

///
///    This file is part of ILNumerics Community Edition.
///
///    ILNumerics Community Edition - high performance computing for applications.
///    Copyright (C) 2006 - 2012 Haymo Kutschbach, http://ilnumerics.net
///
///    ILNumerics Community Edition is free software: you can redistribute it and/or modify
///    it under the terms of the GNU General Public License version 3 as published by
///    the Free Software Foundation.
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///    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
///    GNU General Public License for more details.
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///    You should have received a copy of the GNU General Public License
///    along with ILNumerics Community Edition. See the file License.txt in the root
///    of your distribution package. If not, see <http://www.gnu.org/licenses/>.
///
///    In addition this software uses the following components and/or licenses: 
///
///    =================================================================================
///    The Open Toolkit Library License
///    
///    Copyright (c) 2006 - 2009 the Open Toolkit library.
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///    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 
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#pragma warning disable 1591

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing; 
using ILNumerics.Drawing.Graphs;
using ILNumerics.Drawing.Interfaces;

namespace ILNumerics.Drawing {

    /// <summary>
    /// tick provider function delegate definition
    /// </summary>
    /// <param name="min">minimum axis limit</param>
    /// <param name="max">maximum axis limit</param>
    /// <param name="maxCount">maximum number of ticks to create</param>
    /// <returns>list of tick position to be drawn</returns>
    /// <remarks>User defined tick providers must fulfill this delegates signature. 
    /// </remarks>
    public delegate List<float> ILLabeledTickProvider (float min, float max, int maxCount);  

    /// <summary>
    /// occours if the clipping data for an subfigure have changed
    /// </summary>
    /// <param name="sender">object which changed the data</param>
    /// <param name="e">arguments containing the new clipping data</param>
    public delegate void ILClippingDataChangedEvent (object sender, ClippingChangedEventArgs e); 
    
    /// <summary>
    /// delegate used to measure text, device dependent
    /// </summary>
    /// <param name="text">text to be measured</param>
    /// <param name="font">Font used for rendering</param>
    /// <returns>Size in screen coords</returns>
    public delegate Size MeasureTextDelegate(string text, Font font); 

    /// <summary>
    /// arguments on ClippinChangedEvents
    /// </summary>
    public class ClippingChangedEventArgs : EventArgs {
        /// <summary>
        /// creates a new ClippingChangedEventArgs object
        /// </summary>
        /// <param name="clippingData"></param>
        public ClippingChangedEventArgs(ILClippingData clippingData) {
            ClippingData = clippingData; 
        }
        /// <summary>
        /// the current (new) clipping data
        /// </summary>
        public ILClippingData ClippingData;
    }
    /// <summary>
    /// occours if a graphics device has been reset by the underlying graphics framework
    /// </summary>
    /// <param name="sender">objects who hosts the graphics device</param>
    /// <param name="eventArgs"></param>
    public delegate void ILGraphicsDeviceResetEvent(object sender, EventArgs eventArgs); 
    /// <summary>
    /// occours if a graphics device has been (re)created by an output panel
    /// </summary>
    /// <param name="sender">objects who hosts the graphics device</param>
    /// <param name="eventArgs"></param>
    public delegate void ILGraphicsDeviceCreatedEvent(object sender, EventArgs eventArgs); 
    /// <summary>
    /// arguments to communicate changes on graphs 
    /// </summary>
    public class ILGraphChangedEventArgs : EventArgs {
        /// <summary>
        /// string description of the changed parameter
        /// </summary>
        public readonly string Source; 
        public ILGraphChangedEventArgs (string source) {
            this.Source = source; 
        }
    }
    /// <summary>
    /// fires, if properties of a graph were /have changed
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="args"></param>
    public delegate void ILGraphChangedEvent (object sender, ILGraphChangedEventArgs args); 
    
    /// <summary>
    /// arguments for ILGraphCollectionChanged events
    /// </summary>
    public class ILGraphCollectionChangedEventArgs: EventArgs {
        public readonly GraphCollectionChangeReason Reason; 
        public readonly ILGraph Graph; 
        /// <summary>
        /// description of element changed (in some cases)
        /// </summary>
        public readonly IILPanelConfigurator Configurator;
        /// <summary>
        /// arguments for GraphCollectionChanged events
        /// </summary>
        /// <param name="graph">the graph who was changed, for ILPlot: the scene graph</param>
        /// <param name="reason">reason</param>
        /// <param name="configurator"> instance of IILPanelConfigurator or null</param>
        public ILGraphCollectionChangedEventArgs(ILGraph graph, GraphCollectionChangeReason reason, IILPanelConfigurator configurator) {
            this.Graph = graph; 
            this.Reason = reason; 
            this.Configurator = configurator; 
        }
    }
    /// <summary>
    /// occurs on changes to the graph collection: add, delete
    /// </summary>
    /// <param name="sender">graph collection</param>
    /// <param name="args"></param>
    public delegate void ILGraphCollectionChangedEvent(object sender, ILGraphCollectionChangedEventArgs args);  

    /// <summary>
    /// Event handler handling LabeledTickAdding events 
    /// </summary>
    public class ILLabeledTickAddingArgs : EventArgs {
        public bool Cancel; 
        public float Value; 
        public string Expression; 
        public int Index; 

        public ILLabeledTickAddingArgs (float value, string expression, int index) {
            Value = value; 
            Expression = expression; 
            Cancel = false; 
            Index = index; 
        }
    }
    /// <summary>
    /// Delegate definition for function handling LabeledTickAdding events
    /// </summary>
    /// <param name="sender">the sender of the event (e.g. ILTickCollection)</param>
    /// <param name="args">arguments </param>
    public delegate void LabeledTickAddingHandler (object sender, ILLabeledTickAddingArgs args); 

    /// <summary>
    /// Event arguments for axis changed events
    /// </summary>
    public class ILAxisChangedEventArgs : EventArgs {
        /// <summary>
        /// Name of changed axis (X-,Y-,ZAxis)
        /// </summary>
        public AxisNames AxisName;
        /// <summary>
        /// construct a new instance 
        /// </summary>
        /// <param name="name"></param>
        public ILAxisChangedEventArgs (AxisNames name) {
            AxisName = name; 
        }
    }
    /// <summary>
    /// delegate for functions handling AxisChanged events
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="args"></param>
    public delegate void AxisChangedEventHandler (object sender, ILAxisChangedEventArgs args); 

    /// <summary>
    /// event argument for SceneGraphNodeAdded events
    /// </summary>
    public class ILSceneGraphNodeEventArgs : EventArgs {
        /// <summary>
        /// Node which was added to the scene graph
        /// </summary>
        public ILSceneGraphNode Node;

        public ILSceneGraphNodeEventArgs(ILSceneGraphNode node) {
            Node = node; 
        }
    }
    /// <summary>
    /// used for events fired once a SceneGraphNode was added
    /// </summary>
    /// <param name="sender">the object</param>
    /// <param name="args">the arguments</param>
    public delegate void SceneGraphNodeHandler (object sender, ILSceneGraphNodeEventArgs args);  

}