Map component for building GIS applications (GisMap)

/**************************************************************** 
**  Copyright (C) 2004 MvisionTech Ltd.  
**  Copyright (C) 2005 Roadware Inc.
**
** This file is part of the Canvas.NET data visualization framework.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
**********************************************************************/

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using CanvasControl;
using GeomModel;

namespace CanvasControl
{
	/// <summary>
	/// Summary description for LayersControl.
	/// </summary>
	public class LayersControl : System.Windows.Forms.UserControl
	{
		private Canvas m_canvas;
		private string m_current;
		private System.Windows.Forms.ListView listView1;
		private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.Panel panel2;
		private System.Windows.Forms.Splitter splitter1;
		private System.Windows.Forms.Button buttonCreate;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Button buttonUp;
		private System.Windows.Forms.Button buttonDown;
		private System.Windows.Forms.Button buttonDelete;
		private System.Windows.Forms.PropertyGrid propertyGridLayers;

		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public LayersControl()
		{
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();

			listView1.GridLines = true;			
		}

		public void updateLayers()
		{
			CanvasGeomModel gm = m_canvas.getGeomModel();
			ArrayList layers = gm.getLayers();
			this.listView1.Items.Clear();

			SortedList sl = new SortedList();
			foreach(CanvasLayer lay in layers)
			{
				sl.Add(lay.Order,lay);
			}

			// Initialize the ImageList objects with bitmaps.
			int indx = 0;
			foreach(CanvasLayer lay in sl.Values)
			{				
				ListViewItem item = new ListViewItem(lay.Name,indx++);				
				item.Checked = lay.Visiable;				
				this.listView1.Items.Add(item);	
			}
		}

		public void setCanvas(Canvas c)
		{
			m_canvas = c;
			updateLayers();
			m_canvas.getGeomModel().LayerChangedEvent += new GeomModel.CanvasGeomModel.LayerChangedEventHandler(this.onLayerChanged);
		}

	
		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Component Designer generated code
		/// <summary> 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.listView1 = new System.Windows.Forms.ListView();
			this.panel1 = new System.Windows.Forms.Panel();
			this.buttonDelete = new System.Windows.Forms.Button();
			this.buttonDown = new System.Windows.Forms.Button();
			this.buttonUp = new System.Windows.Forms.Button();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.buttonCreate = new System.Windows.Forms.Button();
			this.panel2 = new System.Windows.Forms.Panel();
			this.propertyGridLayers = new System.Windows.Forms.PropertyGrid();
			this.splitter1 = new System.Windows.Forms.Splitter();
			this.panel1.SuspendLayout();
			this.panel2.SuspendLayout();
			this.SuspendLayout();
			// 
			// listView1
			// 
			this.listView1.CheckBoxes = true;
			this.listView1.Dock = System.Windows.Forms.DockStyle.Left;
			this.listView1.FullRowSelect = true;
			this.listView1.Location = new System.Drawing.Point(0, 0);
			this.listView1.Name = "listView1";
			this.listView1.Size = new System.Drawing.Size(96, 144);
			this.listView1.TabIndex = 0;
			this.listView1.View = System.Windows.Forms.View.List;
			this.listView1.Click += new System.EventHandler(this.listView1_Click);
			this.listView1.SelectedIndexChanged += new System.EventHandler(this.listView1_SelectedIndexChanged);
			this.listView1.ItemCheck += new System.Windows.Forms.ItemCheckEventHandler(this.listView1_ItemCheck);
			// 
			// panel1
			// 
			this.panel1.Controls.Add(this.buttonDelete);
			this.panel1.Controls.Add(this.buttonDown);
			this.panel1.Controls.Add(this.buttonUp);
			this.panel1.Controls.Add(this.textBox1);
			this.panel1.Controls.Add(this.buttonCreate);
			this.panel1.Dock = System.Windows.Forms.DockStyle.Top;
			this.panel1.Location = new System.Drawing.Point(0, 0);
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(296, 38);
			this.panel1.TabIndex = 5;
			// 
			// buttonDelete
			// 
			this.buttonDelete.Location = new System.Drawing.Point(232, 8);
			this.buttonDelete.Name = "buttonDelete";
			this.buttonDelete.Size = new System.Drawing.Size(56, 23);
			this.buttonDelete.TabIndex = 4;
			this.buttonDelete.Text = "delete";
			// 
			// buttonDown
			// 
			this.buttonDown.Location = new System.Drawing.Point(192, 8);
			this.buttonDown.Name = "buttonDown";
			this.buttonDown.Size = new System.Drawing.Size(32, 23);
			this.buttonDown.TabIndex = 3;
			this.buttonDown.Text = ">>";
			this.buttonDown.Click += new System.EventHandler(this.buttonDown_Click);
			// 
			// buttonUp
			// 
			this.buttonUp.Location = new System.Drawing.Point(160, 8);
			this.buttonUp.Name = "buttonUp";
			this.buttonUp.Size = new System.Drawing.Size(32, 23);
			this.buttonUp.TabIndex = 2;
			this.buttonUp.Text = "<<";
			this.buttonUp.Click += new System.EventHandler(this.buttonUp_Click);
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(8, 8);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(96, 22);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "new-name";
			// 
			// buttonCreate
			// 
			this.buttonCreate.Location = new System.Drawing.Point(112, 8);
			this.buttonCreate.Name = "buttonCreate";
			this.buttonCreate.Size = new System.Drawing.Size(40, 23);
			this.buttonCreate.TabIndex = 0;
			this.buttonCreate.Text = "new ";
			this.buttonCreate.Click += new System.EventHandler(this.buttonCreate_Click);
			// 
			// panel2
			// 
			this.panel2.Controls.Add(this.propertyGridLayers);
			this.panel2.Controls.Add(this.splitter1);
			this.panel2.Controls.Add(this.listView1);
			this.panel2.Dock = System.Windows.Forms.DockStyle.Fill;
			this.panel2.Location = new System.Drawing.Point(0, 38);
			this.panel2.Name = "panel2";
			this.panel2.Size = new System.Drawing.Size(296, 144);
			this.panel2.TabIndex = 6;
			// 
			// propertyGridLayers
			// 
			this.propertyGridLayers.CommandsVisibleIfAvailable = true;
			this.propertyGridLayers.Dock = System.Windows.Forms.DockStyle.Fill;
			this.propertyGridLayers.LargeButtons = false;
			this.propertyGridLayers.LineColor = System.Drawing.SystemColors.ScrollBar;
			this.propertyGridLayers.Location = new System.Drawing.Point(99, 0);
			this.propertyGridLayers.Name = "propertyGridLayers";
			this.propertyGridLayers.Size = new System.Drawing.Size(197, 144);
			this.propertyGridLayers.TabIndex = 6;
			this.propertyGridLayers.Text = "propertyGrid1";
			this.propertyGridLayers.ViewBackColor = System.Drawing.SystemColors.Window;
			this.propertyGridLayers.ViewForeColor = System.Drawing.SystemColors.WindowText;
			// 
			// splitter1
			// 
			this.splitter1.Location = new System.Drawing.Point(96, 0);
			this.splitter1.Name = "splitter1";
			this.splitter1.Size = new System.Drawing.Size(3, 144);
			this.splitter1.TabIndex = 5;
			this.splitter1.TabStop = false;
			// 
			// LayersControl
			// 
			this.Controls.Add(this.panel2);
			this.Controls.Add(this.panel1);
			this.Name = "LayersControl";
			this.Size = new System.Drawing.Size(296, 182);
			this.panel1.ResumeLayout(false);
			this.panel2.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		public void onLayerChanged(object sender,LayerEventArgs args)
		{
			//listView1.Items.Add(args.lay.Name);
			updateLayers();
		}

		private void listView1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			if(listView1.SelectedItems.Count == 0)
				return;

			m_current = listView1.SelectedItems[0].Text;
			GeomModel.CanvasLayer lay = m_canvas.layerByName(m_current);
			if( lay == null)
				return;
			
			propertyGridLayers.SelectedObject = lay;
			
		}

		private void listView1_ItemCheck(object sender, System.Windows.Forms.ItemCheckEventArgs e)
		{
			
			m_current = listView1.Items[e.Index].Text;
			GeomModel.CanvasLayer lay = m_canvas.layerByName(m_current);
			if( lay == null)
				return;
			if(e.CurrentValue != CheckState.Checked)
			{
				lay.Visiable = true;
				m_canvas.Invalidate();
			}
			else
			{
				lay.Visiable = false;
				m_canvas.Invalidate();
				propertyGridLayers.Update();
			}
		}

		private void buttonCreate_Click(object sender, System.EventArgs e)
		{
			CanvasLayer lay = m_canvas.createLayer(textBox1.Text,Color.GreenYellow,0,true);
			m_canvas.CurrentLayer = lay;
		}

		private void buttonUp_Click(object sender, System.EventArgs e)
		{
			if(listView1.SelectedItems.Count == 0)
				return;
			m_canvas.getGeomModel().moveLayerUp(listView1.SelectedItems[0].Text);
		}

		private void buttonDown_Click(object sender, System.EventArgs e)
		{
			if(listView1.SelectedItems.Count == 0)
				return;
			m_canvas.getGeomModel().moveLayerDown(listView1.SelectedItems[0].Text);	
		}

		private void listView1_Click(object sender, System.EventArgs e)
		{
			if(listView1.SelectedItems.Count == 0)
				return;
			CanvasLayer lay = m_canvas.getGeomModel().layerByName(listView1.SelectedItems[0].Text);
			if(lay != null)
				m_canvas.CurrentLayer = lay;
		}

		
	}
}