christian@0: /*
christian@0:  * Postarc
christian@0:  *
christian@0:  * Author:
christian@0:  * Christian Lins <christian.lins@intevation.de>
christian@0:  *
christian@0:  * Copyright:
christian@0:  * Copyright (C) 2012 Intevation GmbH <http://www.intevation.de/>
christian@0:  *
christian@0:  * This program is free software: you can redistribute it and/or modify
christian@0:  * it under the terms of the GNU Lesser General Public License as published by
christian@0:  * the Free Software Foundation, either version 3 of the License, or
christian@0:  * (at your option) any later version.
christian@0:  *
christian@0:  * This program is distributed in the hope that it will be useful,
christian@0:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
christian@0:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
christian@0:  * GNU General Public License for more details.
christian@0:  *
christian@0:  * You should have received a copy of the GNU Lesser General Public License
christian@0:  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
christian@0: */
christian@0: 
christian@0: using System;
christian@0: using System.Collections.Generic;
christian@0: using System.Linq;
christian@0: using System.Text;
christian@0: using ESRI.ArcGIS.Carto;
christian@0: using ESRI.ArcGIS.Geodatabase;
christian@0: using ESRI.ArcGIS.Geometry;
christian@0: using ESRI.ArcGIS.esriSystem;
christian@0: using ESRI.ArcGIS.Display;
christian@0: using Postarc.Geodatabase;
christian@0: using System.Diagnostics;
christian@0: 
christian@0: namespace Postarc.Feature
christian@0: {
christian@0:     class FeatureLayer : IFeatureLayer, ITableFields, IGeoDataset, ILegendInfo
christian@0:     {
christian@0:         protected Postarc.Feature.FeatureClass featureClass = null;
christian@0:         protected string name = "Unamed FeatureLayer";
christian@0:         protected bool cached = false;
christian@0:         protected bool visible = true;
christian@0:         protected bool selectable = true;
christian@0:         protected bool showTips = false;
christian@0:         protected ISpatialReference spatialReference = new UnknownCoordinateSystemClass();
christian@0: 
christian@0:         private IFeatureLayer parent;
christian@0: 
christian@0:         public IEnvelope AreaOfInterest
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 EnvelopeClass env = new EnvelopeClass();
christian@0:                 env.XMax = 100;
christian@0:                 env.XMin = -100;
christian@0:                 env.YMax = 100;
christian@0:                 env.YMin = -100;
christian@0:                 return env as IEnvelope;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public bool Cached
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.cached;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 this.cached = value;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public string DataSourceType
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return "PostGIS Feature Class";
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 // TODO
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public string DisplayField
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.featureClass.ShapeFieldName;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 // TODO
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public FeatureLayer()
christian@0:         {
christian@0:             this.parent = new FeatureLayerClass();
christian@0:         }
christian@0: 
christian@0:         ///<summary>Create a simple fill symbol by specifying a color, outline color and fill style.</summary>
christian@0:         ///  
christian@0:         ///<param name="fillColor">An IRGBColor interface. The color for the inside of the fill symbol.</param>
christian@0:         ///<param name="fillStyle">An esriSimpleLineStyle enumeration for the inside fill symbol. Example: esriSFSSolid.</param>
christian@0:         ///<param name="borderColor">An IRGBColor interface. The color for the outside line border of the fill symbol.</param>
christian@0:         ///<param name="borderStyle">An esriSimpleLineStyle enumeration for the outside line border. Example: esriSLSSolid.</param>
christian@0:         ///<param name="borderWidth">A System.Double that is the width of the outside line border in points. Example: 2</param>
christian@0:         ///   
christian@0:         ///<returns>An ISimpleFillSymbol interface.</returns>
christian@0:         ///  
christian@0:         ///<remarks></remarks>
christian@0:         private ISimpleFillSymbol CreateSimpleFillSymbol(
christian@0:             IRgbColor fillColor, 
christian@0:             esriSimpleFillStyle fillStyle, 
christian@0:             IRgbColor borderColor, 
christian@0:             esriSimpleLineStyle borderStyle, 
christian@0:             System.Double borderWidth)
christian@0:         {
christian@0:             if (fillColor == null || fillStyle == null || borderColor == null || borderStyle == null)
christian@0:             {
christian@0:                 return null;
christian@0:             }
christian@0:             ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
christian@0:             simpleLineSymbol.Width = borderWidth;
christian@0:             simpleLineSymbol.Color = borderColor;
christian@0:             simpleLineSymbol.Style = borderStyle;
christian@0: 
christian@0:             ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
christian@0:             simpleFillSymbol.Outline = simpleLineSymbol;
christian@0:             simpleFillSymbol.Style = fillStyle;
christian@0:             simpleFillSymbol.Color = fillColor;
christian@0: 
christian@0:             return simpleFillSymbol;
christian@0:         }
christian@0: 
christian@0:         public void Draw(esriDrawPhase drawPhase, IDisplay display, ITrackCancel trackCancel)
christian@0:         {
christian@0:             Debug.WriteLine("PostGISFeatureLayer::Draw(" + drawPhase + ")");
christian@0:          //   this.parent.Draw(drawPhase, display, trackCancel);
christian@0: 
christian@0:             switch (drawPhase)
christian@0:             {
christian@0:                 case esriDrawPhase.esriDPGeography:
christian@0:                     display.SetSymbol(get_LegendGroup(0).get_Class(0).Symbol);
christian@0: 
christian@0:                     IFeatureCursor cur = featureClass.Search(null, true);
christian@0:                     IFeature feat;
christian@0:                     while ((feat = cur.NextFeature()) != null)
christian@0:                     {
christian@0:                         IPoint sp = feat.Shape as IPoint;
christian@0:                         PointClass p = new PointClass();
christian@0:                         p.PutCoords(sp.X, sp.Y);
christian@0:                         p.SpatialReference = CreateGeographicSpatialReference();
christian@0:                         p.Project(spatialReference);
christian@0:                         //feat.Shape.Project(spatialReference);
christian@0:                         display.DrawPoint(p);
christian@0:                     }
christian@0: 
christian@0:                     break;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         private double GetSymbolSize(IDisplay display, int symbolSizePixels)
christian@0:         {
christian@0:             if (display == null)
christian@0:                 return 0;
christian@0: 
christian@0:             double symbolSize;
christian@0:             
christian@0:             // convert the symbol size from pixels to map units
christian@0:             ITransformation transform = display.DisplayTransformation as ITransformation;
christian@0:             if (transform == null)
christian@0:                 return 0;
christian@0: 
christian@0:             double[] symbolDimensions = new double[2];
christian@0:             symbolDimensions[0] = (double)symbolSizePixels;
christian@0:             symbolDimensions[1] = (double)symbolSizePixels;
christian@0: 
christian@0:             double[] symbolDimensionsMap = new double[2];
christian@0: 
christian@0:             transform.TransformMeasuresFF(
christian@0:                 esriTransformDirection.esriTransformReverse, 1, ref symbolDimensionsMap[0], ref symbolDimensions[0]);
christian@0:             symbolSize = symbolDimensionsMap[0];
christian@0:             
christian@0:             return symbolSize;
christian@0:         }
christian@0: 
christian@0: 
christian@0:         /// <summary>
christian@0:         /// create a WGS1984 geographic coordinate system.
christian@0:         /// In this case, the underlying data provided by the service is in WGS1984.
christian@0:         /// </summary>
christian@0:         /// <returns></returns>
christian@0:         public static ISpatialReference CreateGeographicSpatialReference()
christian@0:         {
christian@0:             ISpatialReferenceFactory spatialRefFatcory = new SpatialReferenceEnvironmentClass();
christian@0:             IGeographicCoordinateSystem geoCoordSys;
christian@0:             geoCoordSys = spatialRefFatcory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
christian@0:             //geoCoordSys.SetFalseOriginAndUnits(-180.0, -180.0, 5000000.0);
christian@0:             //geoCoordSys.SetZFalseOriginAndUnits(0.0, 100000.0);
christian@0:             //geoCoordSys.SetMFalseOriginAndUnits(0.0, 100000.0);
christian@0: 
christian@0:             return geoCoordSys as ISpatialReference;
christian@0:         }
christian@0: 
christian@0:         public IFeatureClass FeatureClass
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.featureClass;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 this.parent.FeatureClass = value;
christian@0:                 this.featureClass = value as FeatureClass;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public double MaximumScale
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return 100; // FIXME
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 // TODO: Not implemented
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public double MinimumScale
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return 0.01; // FIXME
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 // TODO: Not implemented
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public string Name
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.name;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 this.name = value;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public bool ScaleSymbols
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return false; // FIXME
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 // TODO: Not implemented
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public IFeatureCursor Search(IQueryFilter queryFilter, bool recycling)
christian@0:         {
christian@0:             return FeatureClass.Search(queryFilter, recycling);
christian@0:         }
christian@0: 
christian@0:         public bool Selectable
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return selectable;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 this.selectable = value;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public bool ShowTips
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.showTips;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 this.showTips = value;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public ISpatialReference SpatialReference
christian@0:         {
christian@0:             set
christian@0:             {
christian@0:                 this.spatialReference = value;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public int SupportedDrawPhases
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return 1;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public bool Valid
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return true; // FIXME
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public bool Visible
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.visible;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 this.visible = value;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public string get_TipText(double x, double y, double Tolerance)
christian@0:         {
christian@0:             return "tiptext";
christian@0:         }
christian@0: 
christian@0:         public int FieldCount
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.featureClass.Fields.FieldCount;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public IField get_Field(int index)
christian@0:         {
christian@0:             return this.featureClass.Fields.get_Field(index);
christian@0:         }
christian@0: 
christian@0:         public IFieldInfo get_FieldInfo(int index)
christian@0:         {
christian@0:             return Postarc.Geodatabase.FieldInfo.Create(get_Field(index));   
christian@0:         }
christian@0:     
christian@0:         public int FindField(string fieldName)
christian@0:         {
christian@0:             return this.featureClass.FindField(fieldName);
christian@0:         }
christian@0: 
christian@0: 
christian@0:         public IEnvelope Extent
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return featureClass.Extent;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         ISpatialReference IGeoDataset.SpatialReference
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return this.spatialReference;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public int LegendGroupCount
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return 1;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public ILegendItem LegendItem
christian@0:         {
christian@0:             get 
christian@0:             {
christian@0:                 return null;
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public bool SymbolsAreGraduated
christian@0:         {
christian@0:             get
christian@0:             {
christian@0:                 return true;
christian@0:             }
christian@0:             set
christian@0:             {
christian@0:                 throw new NotImplementedException();
christian@0:             }
christian@0:         }
christian@0: 
christian@0:         public ILegendGroup get_LegendGroup(int index)
christian@0:         {
christian@0:             if (index == 0)
christian@0:             {
christian@0:                 RgbColorClass fillColor = new RgbColorClass();
christian@0:                 fillColor.Blue = 255;
christian@0:                 fillColor.Red = 0;
christian@0:                 fillColor.Green = 0;
christian@0: 
christian@0:                 ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
christian@0:                 simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
christian@0:                 simpleMarkerSymbol.Size = 5;
christian@0:                 simpleMarkerSymbol.Color = fillColor;
christian@0: 
christian@0:                 LegendGroupClass legGrp = new LegendGroupClass();
christian@0:                 legGrp.Editable = true;
christian@0:                 legGrp.Visible = true;
christian@0: 
christian@0:                 LegendClassClass legClass = new LegendClassClass();
christian@0:                 legClass.Description = "Point Description";
christian@0:                 legClass.Label = "Points";
christian@0:                 legClass.Symbol = (ISymbol)simpleMarkerSymbol;
christian@0:                 legGrp.AddClass(legClass);
christian@0:                 return legGrp;
christian@0:             }
christian@0:             return null;
christian@0:         }
christian@0:     }
christian@0: }