LayerControl
2015-06-10 14:53:25 访问(1342) 赞(0) 踩(0)
///////////////////////////////////////////////////////////////////////////////
//
// (c) Pitney Bowes MapInfo Corporation, 2008. All rights reserved.
//
// The source code below is provided as sample code only. The end user of the
// Licensed Product that contains this code may use the code below for
// development purposes. This software is provided by Pitney Bowes MapInfo
// "as is" and any express or implied warranties, including, but not limited
// to, the implied warranties of merchantability and fitness for a particular
// purpose are disclaimed. In no event shall Pitney Bowes MapInfo be liable
// for any direct, indirect, incidental, special, exemplary, or consequential
// damages (including, but not limited to, procurement of substitute goods or
// services; loss of use, data or profits; or business interruption) however
// caused and whether in contract, strict liability, or tort (including
// negligence) arising in any way out of the use of this software, even if
// advised of the possibility of such damage.
//
///////////////////////////////////////////////////////////////////////////////
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using MapInfo.Engine;
using MapInfo.Geometry;
using MapInfo.Mapping;
using MapInfo.Windows.Controls;
using MapInfo.Windows.Dialogs;
namespace MapInfo.Samples.LayerControl
{
/// <summary>
/// A sample application that demonstrates various ways of
/// customizing the MapInfo.Windows.Controls.LayerControl class.
/// The form contains a docked LayerControl and a MapControl,
/// as well as various checkboxes and buttons that modify the
/// appearance and/or behavior of the LayerControl.
/// </summary>
public class LayerControlDemoForm : System.Windows.Forms.Form
{
private MapInfo.Windows.Controls.LayerControl layerControl1;
private MapInfo.Windows.Controls.MapControl mapControl1;
private System.Windows.Forms.CheckBox checkBoxShowAddButton;
private System.Windows.Forms.CheckBox checkBoxToolTips;
private System.Windows.Forms.CheckBox checkBoxShowMapNode;
private System.Windows.Forms.CheckBox checkBoxConfirmationPrompt;
private System.Windows.Forms.Button buttonLabelLayers;
private System.Windows.Forms.Button buttonDisableRemovals;
private System.Windows.Forms.Button buttonDisableMapViewTab;
private System.Windows.Forms.Button buttonRemoveMapViewTab;
private System.Windows.Forms.Button buttonAddMenuItem;
private System.Windows.Forms.Button buttonCustomStyleTab;
private MapInfo.Windows.Controls.CheckBox checkBoxShowContextMenu;
private MapToolBar mapToolBar1;
private MapToolBarButton zoomInButton;
private MapToolBarButton zoomOutButton;
private MapToolBarButton centerButton;
private MapToolBarButton panButton;
private IContainer components;
// Constructor that creates the sample app form.
public LayerControlDemoForm()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
// For this application, we'll reset Resize Method, because
// the form is resizable, and the app is more responsive if
// it doesn't redraw the app repeatedly as the user resizes.
mapControl1.Map.ResizeMethod = ResizeMethod.PreserveScale;
// Load sample data if the map is blank
if (mapControl1.Map == null || mapControl1.Map.Layers.Count == 0)
{
SetupMap();
}
// Now assign the map, which will populate the nodes of
// the layer tree.
layerControl1.Map = mapControl1.Map;
layerControl1.Tools = mapControl1.Tools;
}
// Initialize the map using the sample World geoset
private void SetupMap()
{
// Set table search path to value sampledatasearch registry key
// if not found, then just use the app's current directory
Microsoft.Win32.RegistryKey key =
Microsoft.Win32.Registry.LocalMachine.CreateSubKey(@"SOFTWARE\MapInfo\MapXtreme\6.8.0");
string s = (string)key.GetValue("SampleDataSearchPath");
if (s != null && s.Length > 0)
{
if (s.EndsWith("\\")==false)
{
s += "\\";
}
}
else
{
s = Environment.CurrentDirectory;
}
key.Close();
Session.Current.TableSearchPath.Path = s;
string geoSetName = "world.gst";
try
{
mapControl1.Map.Load(new MapGeosetLoader(s + geoSetName));
}
catch(Exception)
{
MessageBox.Show("Geoset " + geoSetName + " not found.");
}
}
// Method that places restrictions on what types of objects
// the user is allowed to remove from the layer tree.
// This example shows how to prevent the user from removing
// FeatureLayer, GroupLayer, and LabelLayer nodes; the same
// technique could be used to prohibit any or all types of
// layers and themes from being removed by the user.
private void RestrictLayerRemoval()
{
// Declare a LayerNodeHelper object, which has properties
// that dictate the appearance and behavior of the specified
// type of layer.
ILayerNodeHelper helper;
// Get the LayerNodeHelper that is currently being used to
// dictate how FeatureLayer nodes behave in LayerControl.
helper = layerControl1.GetLayerTypeHelper(typeof(FeatureLayer));
// Reconfigure the helper to not allow the removal of FeatureLayers
helper.AllowRemoval = false;
// Now use the same technique to reconfigure other types of layers
helper = layerControl1.GetLayerTypeHelper(typeof(GroupLayer));
helper.AllowRemoval = false;
helper = layerControl1.GetLayerTypeHelper(typeof(LabelLayer));
helper.AllowRemoval = false;
// Apply the same technique to the Map node. If you right-click
// the Map node, there is no Remove menuitem. However, the Map
// node's context menu does have a "clear all" menuitem. In the
// case of the Map node, the helper's AllowRemoval property
// controls whether the clear all menuitem is shown.
helper = layerControl1.GetLayerTypeHelper(typeof(Map));
helper.AllowRemoval = false;
}
// Show or hide the Add button on the LayerControl's ToolBar.
// Also show or hide the separator that separates the Add button
// from the Remove button.
private void ShowAddButton(bool bShow)
{
ToolBar tb = layerControl1.ToolBar;
ToolBarButton spacer = tb.Buttons[1];
ToolBarButton addButton = tb.Buttons[0];
spacer.Visible = addButton.Visible = bShow;
}
// Customize the appearance and behavior of all LabelLayer nodes
private void CustomizeLabelLayerNodes()
{
// Obtain the helper object that is being used to dictate the
// behavior of LabelLayer nodes in the layer tree.
ILayerNodeHelper labelLayerHelper =
layerControl1.GetLayerTypeHelper(typeof(LabelLayer));
// Reconfigure the helper to specify that it should NOT display
// any "child" nodes. By default, each LabelLayer does show a
// child node for each LabelSource in the layer. Setting
// ShowChildren to false will cause LayerControl to not display
// any nodes for LabelSource objects. This simplifies the layer
// tree, and prevents the user from seeing properties of
// individual LabelSources (which might or might not be
// appropriate for your application).
labelLayerHelper.ShowChildren = false;
// Change the ToolTip text used for LabelLayer nodes
labelLayerHelper.ToolTipText = "Labels for various map layers";
// Change which image is displayed for LabelLayer nodes.
// In this example we will set all LabelLayer nodes to display
// with the icon that is ordinarly used for LabelSource nodes.
ILayerNodeHelper labelSourceHelper =
layerControl1.GetLayerTypeHelper(typeof(LabelSource));
labelLayerHelper.Image = labelSourceHelper.Image;
}
// Disable all options on the Map node's View tab, so that the user can
// still see the Map's zoom width, etc., but the user cannot type in
// new values.
private void DisableMapViewTab()
{
// Call a method on LayerControl class that returns the
// collection of PropertiesUserControl objects currently
// associated with the Map class. This collection of
// PropertiesUserControl objects is what populates the
// TabControl whenever the Map node is selected.
IList controlList =
layerControl1.GetLayerTypeControls(typeof(MapInfo.Mapping.Map));
// Determine which of the controls in the collection is
// the View control.
foreach (object obj in controlList)
{
// Try to cast to a MapViewControl class, which might not work
MapViewControl mvc = obj as MapViewControl;
if (mvc != null)
{
// The current control is the one shown on the View tab.
// Disable everything on the tab.
mvc.Enabled = false;
// The MapViewControl has an Apply button; there is no
// point showing a button that is disabled.
// So hide the button:
mvc.ShowApplyButton = false;
break;
}
}
}
// Remove the Map node's View tab, so that when the user selects
// the Map node, the TabControl will not contain a View tab.
// The same technique could be used to remove any or all of the tabs
// associated with any type of node in the layers tree.
private void RemoveMapViewTab()
{
// Call a method on LayerControl class that returns the
// collection of PropertiesUserControl objects currently
// associated with the Map class.
IList controlList =
layerControl1.GetLayerTypeControls(typeof(MapInfo.Mapping.Map));
// Determine which of the controls in the collection is
// the View control.
foreach (object obj in controlList)
{
MapViewControl mvc = obj as MapViewControl;
if (mvc != null)
{
// The current control is the one shown on the View tab.
// Remove it from the collection.
controlList.Remove(obj);
break;
}
}
}
// Create a custom "Style" tab which will appear on the TabControl
// whenever the user selects the Map node at the root of the tree.
private void AddCustomMapStyleTab()
{
// Instantiate a custom control, MapBackgroundControl, the
// source code for which is provided as part of this project.
MapBackgroundControl bgControl = new MapBackgroundControl();
// Call a method on LayerControl class that returns the
// collection of PropertiesUserControl objects currently
// associated with the Map class.
IList controlList =
layerControl1.GetLayerTypeControls(typeof(MapInfo.Mapping.Map));
// Add the custom control to the collection. The next time the
// user selects the Map node at the root of the layer tree,
// the TabControl will contain an extra, non-standard "Style" tab
// that displays a MapBackgroundControl object (which allows the
// user to choose a background color for the map).
controlList.Add(bgControl);
}
// Create a custom menuitem, "Choose Coordinate System", which is available
// when the user right-clicks the Map node. Choosing this menuitem
// displays the Choose Coordinate System dialog.
private void AddChooseCoordSysMenuitem()
{
// Create a new menuitem, which calls the MenuItemChooseCoordSys
// method (see below).
MenuItem chooseCoordSysMenuItem = new MenuItem("&Choose Coordinate System...",
new System.EventHandler(this.MenuItemChooseCoordSys));
// Each type of object that can appear in the layer tree
// has a collection of menuitems displayed when the user
// right-clicks. Obtain a reference to that collection,
// and add our new menuitem to the collection.
IList menuItems =
layerControl1.GetLayerTypeMenuItems(typeof(MapInfo.Mapping.Map));
// Insert a separator and a new menuitem to the collection of menuitems.
menuItems.Add(new MenuItem("-"));
menuItems.Add(chooseCoordSysMenuItem);
}
// The method called when the user chooses the Choose Coordinate System menuitem
private void MenuItemChooseCoordSys(Object sender, System.EventArgs e)
{
if (mapControl1.Map.IsDisplayCoordSysReadOnly)
{
// We cannot allow the user to change the coordinate system if
// the coordinate system is locked due to a raster layer.
MessageBox.Show("Coordinate system is currently restricted, due to a raster layer.");
}
else
{
CoordSysPickerDlg csysDlg = new CoordSysPickerDlg();
csysDlg.SelectedCoordSys = mapControl1.Map.GetDisplayCoordSys();
if (csysDlg.ShowDialog(this) == DialogResult.OK)
{
CoordSys csysNew = csysDlg.SelectedCoordSys;
if (csysNew != mapControl1.Map.GetDisplayCoordSys() )
{
mapControl1.Map.SetDisplayCoordSys(csysNew);
}
}
}
}
/// <summary>
/// Standard Windows forms method. Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form 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.components = new System.ComponentModel.Container();
this.layerControl1 = new MapInfo.Windows.Controls.LayerControl();
this.mapControl1 = new MapInfo.Windows.Controls.MapControl();
this.checkBoxShowAddButton = new System.Windows.Forms.CheckBox();
this.checkBoxToolTips = new System.Windows.Forms.CheckBox();
this.checkBoxShowMapNode = new System.Windows.Forms.CheckBox();
this.checkBoxConfirmationPrompt = new System.Windows.Forms.CheckBox();
this.buttonLabelLayers = new System.Windows.Forms.Button();
this.buttonDisableRemovals = new System.Windows.Forms.Button();
this.buttonDisableMapViewTab = new System.Windows.Forms.Button();
this.buttonRemoveMapViewTab = new System.Windows.Forms.Button();
this.buttonAddMenuItem = new System.Windows.Forms.Button();
this.buttonCustomStyleTab = new System.Windows.Forms.Button();
this.checkBoxShowContextMenu = new MapInfo.Windows.Controls.CheckBox();
this.mapToolBar1 = new MapInfo.Windows.Controls.MapToolBar();
this.zoomInButton = new MapInfo.Windows.Controls.MapToolBarButton();
this.zoomOutButton = new MapInfo.Windows.Controls.MapToolBarButton();
this.centerButton = new MapInfo.Windows.Controls.MapToolBarButton();
this.panButton = new MapInfo.Windows.Controls.MapToolBarButton();
this.SuspendLayout();
//
// layerControl1
//
this.layerControl1.AllowDragAndDrop = true;
this.layerControl1.AllowRenaming = true;
this.layerControl1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)));
this.layerControl1.AutomaticLabelRemoval = MapInfo.Windows.Controls.LayerControl.LabelRemoval.Prompt;
this.layerControl1.CheckBoxes = false;
this.layerControl1.ConfirmLayerRemoval = true;
this.layerControl1.EditNameAfterInsertingLayer = true;
this.layerControl1.FeatureLayerImageType = MapInfo.Windows.Controls.LayerControl.ImageType.Sample;
this.layerControl1.ItemHeight = 20;
this.layerControl1.Location = new System.Drawing.Point(8, 8);
this.layerControl1.Map = null;
this.layerControl1.Name = "layerControl1";
this.layerControl1.OriginalMap = null;
this.layerControl1.PointSampleMaximumPointSize = 18;
this.layerControl1.SelectedObject = null;
this.layerControl1.SelectedTab = MapInfo.Windows.Controls.PropertiesCategory.Custom;
this.layerControl1.ShowContextMenu = true;
this.layerControl1.ShowMapNode = true;
this.layerControl1.Size = new System.Drawing.Size(285, 479);
this.layerControl1.TabIndex = 0;
this.layerControl1.Tools = null;
this.layerControl1.UpdateWhenCollectionChanges = true;
this.layerControl1.UpdateWhenMapViewChanges = true;
this.layerControl1.UpdateWhenNameChanges = true;
//
// mapControl1
//
this.mapControl1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.mapControl1.IgnoreLostFocusEvent = false;
this.mapControl1.Location = new System.Drawing.Point(301, 35);
this.mapControl1.Name = "mapControl1";
this.mapControl1.Size = new System.Drawing.Size(355, 220);
this.mapControl1.TabIndex = 1;
this.mapControl1.Text = "mapControl1";
this.mapControl1.Tools.LeftButtonTool = "Arrow";
this.mapControl1.Tools.MiddleButtonTool = null;
this.mapControl1.Tools.RightButtonTool = null;
//
// checkBoxShowAddButton
//
this.checkBoxShowAddButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.checkBoxShowAddButton.Checked = true;
this.checkBoxShowAddButton.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxShowAddButton.Location = new System.Drawing.Point(304, 263);
this.checkBoxShowAddButton.Name = "checkBoxShowAddButton";
this.checkBoxShowAddButton.Size = new System.Drawing.Size(336, 24);
this.checkBoxShowAddButton.TabIndex = 5;
this.checkBoxShowAddButton.Text = "Show the Add button on the Layer Control toolbar";
this.checkBoxShowAddButton.CheckedChanged += new System.EventHandler(this.checkBoxShowAddButton_CheckedChanged);
//
// checkBoxToolTips
//
this.checkBoxToolTips.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.checkBoxToolTips.Checked = true;
this.checkBoxToolTips.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxToolTips.Location = new System.Drawing.Point(304, 287);
this.checkBoxToolTips.Name = "checkBoxToolTips";
this.checkBoxToolTips.Size = new System.Drawing.Size(336, 24);
this.checkBoxToolTips.TabIndex = 10;
this.checkBoxToolTips.Text = "Show ToolTips over the layers tree";
this.checkBoxToolTips.CheckedChanged += new System.EventHandler(this.checkBoxToolTips_CheckedChanged);
//
// checkBoxShowMapNode
//
this.checkBoxShowMapNode.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.checkBoxShowMapNode.Checked = true;
this.checkBoxShowMapNode.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxShowMapNode.Location = new System.Drawing.Point(304, 311);
this.checkBoxShowMapNode.Name = "checkBoxShowMapNode";
this.checkBoxShowMapNode.Size = new System.Drawing.Size(336, 24);
this.checkBoxShowMapNode.TabIndex = 15;
this.checkBoxShowMapNode.Text = "Show a Map node at the root of the layers tree";
this.checkBoxShowMapNode.CheckedChanged += new System.EventHandler(this.checkBoxShowMapNode_CheckedChanged);
//
// checkBoxConfirmationPrompt
//
this.checkBoxConfirmationPrompt.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.checkBoxConfirmationPrompt.Checked = true;
this.checkBoxConfirmationPrompt.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxConfirmationPrompt.Location = new System.Drawing.Point(304, 335);
this.checkBoxConfirmationPrompt.Name = "checkBoxConfirmationPrompt";
this.checkBoxConfirmationPrompt.Size = new System.Drawing.Size(336, 24);
this.checkBoxConfirmationPrompt.TabIndex = 20;
this.checkBoxConfirmationPrompt.Text = "Display \"Do you want to remove...\" confirmation prompts";
this.checkBoxConfirmationPrompt.CheckedChanged += new System.EventHandler(this.checkBoxConfirmationPrompt_CheckedChanged);
//
// buttonLabelLayers
//
this.buttonLabelLayers.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.buttonLabelLayers.Location = new System.Drawing.Point(299, 428);
this.buttonLabelLayers.Name = "buttonLabelLayers";
this.buttonLabelLayers.Size = new System.Drawing.Size(168, 23);
this.buttonLabelLayers.TabIndex = 60;
this.buttonLabelLayers.Text = "Simplify LabelLayer nodes...";
this.buttonLabelLayers.Click += new System.EventHandler(this.buttonLabelLayers_Click);
//
// buttonDisableRemovals
//
this.buttonDisableRemovals.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.buttonDisableRemovals.Location = new System.Drawing.Point(299, 398);
this.buttonDisableRemovals.Name = "buttonDisableRemovals";
this.buttonDisableRemovals.Size = new System.Drawing.Size(168, 23);
this.buttonDisableRemovals.TabIndex = 40;
this.buttonDisableRemovals.Text = "Disable layer removal...";
this.buttonDisableRemovals.Click += new System.EventHandler(this.buttonDisableRemovals_Click);
//
// buttonDisableMapViewTab
//
this.buttonDisableMapViewTab.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.buttonDisableMapViewTab.Location = new System.Drawing.Point(472, 398);
this.buttonDisableMapViewTab.Name = "buttonDisableMapViewTab";
this.buttonDisableMapViewTab.Size = new System.Drawing.Size(176, 23);
this.buttonDisableMapViewTab.TabIndex = 50;
this.buttonDisableMapViewTab.Text = "Disable the Map\'s View tab...";
this.buttonDisableMapViewTab.Click += new System.EventHandler(this.buttonDisableMapViewTab_Click);
//
// buttonRemoveMapViewTab
//
this.buttonRemoveMapViewTab.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.buttonRemoveMapViewTab.Location = new System.Drawing.Point(472, 428);
this.buttonRemoveMapViewTab.Name = "buttonRemoveMapViewTab";
this.buttonRemoveMapViewTab.Size = new System.Drawing.Size(176, 23);
this.buttonRemoveMapViewTab.TabIndex = 70;
this.buttonRemoveMapViewTab.Text = "Remove the Map\'s View tab...";
this.buttonRemoveMapViewTab.Click += new System.EventHandler(this.buttonRemoveMapViewTab_Click);
//
// buttonAddMenuItem
//
this.buttonAddMenuItem.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.buttonAddMenuItem.Location = new System.Drawing.Point(472, 458);
this.buttonAddMenuItem.Name = "buttonAddMenuItem";
this.buttonAddMenuItem.Size = new System.Drawing.Size(177, 23);
this.buttonAddMenuItem.TabIndex = 90;
this.buttonAddMenuItem.Text = "Add custom menu items...";
this.buttonAddMenuItem.Click += new System.EventHandler(this.buttonAddMenuItem_Click);
//
// buttonCustomStyleTab
//
this.buttonCustomStyleTab.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.buttonCustomStyleTab.Location = new System.Drawing.Point(299, 458);
this.buttonCustomStyleTab.Name = "buttonCustomStyleTab";
this.buttonCustomStyleTab.Size = new System.Drawing.Size(168, 23);
this.buttonCustomStyleTab.TabIndex = 80;
this.buttonCustomStyleTab.Text = "Add a custom Map Style tab...";
this.buttonCustomStyleTab.Click += new System.EventHandler(this.buttonCustomStyleTab_Click);
//
// checkBoxShowContextMenu
//
this.checkBoxShowContextMenu.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.checkBoxShowContextMenu.Checked = true;
this.checkBoxShowContextMenu.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxShowContextMenu.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.checkBoxShowContextMenu.Location = new System.Drawing.Point(305, 358);
this.checkBoxShowContextMenu.Name = "checkBoxShowContextMenu";
this.checkBoxShowContextMenu.Size = new System.Drawing.Size(335, 24);
this.checkBoxShowContextMenu.TabIndex = 25;
this.checkBoxShowContextMenu.Text = "Show context menu when user right-clicks in layer tree";
this.checkBoxShowContextMenu.CheckedChanged += new System.EventHandler(this.checkBoxContextMenuChanged);
//
// mapToolBar1
//
this.mapToolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
this.zoomInButton,
this.zoomOutButton,
this.centerButton,
this.panButton});
this.mapToolBar1.ButtonSize = new System.Drawing.Size(25, 22);
this.mapToolBar1.Divider = false;
this.mapToolBar1.Dock = System.Windows.Forms.DockStyle.None;
this.mapToolBar1.DropDownArrows = true;
this.mapToolBar1.Location = new System.Drawing.Point(301, 8);
this.mapToolBar1.MapControl = this.mapControl1;
this.mapToolBar1.Name = "mapToolBar1";
this.mapToolBar1.ShowToolTips = true;
this.mapToolBar1.Size = new System.Drawing.Size(100, 26);
this.mapToolBar1.TabIndex = 91;
this.mapToolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.mapToolBar1_ButtonClick);
//
// zoomInButton
//
this.zoomInButton.ButtonType = MapInfo.Windows.Controls.MapToolButtonType.ZoomIn;
this.zoomInButton.Name = "zoomInButton";
this.zoomInButton.ToolTipText = "Zoom-in";
//
// zoomOutButton
//
this.zoomOutButton.ButtonType = MapInfo.Windows.Controls.MapToolButtonType.ZoomOut;
this.zoomOutButton.Name = "zoomOutButton";
this.zoomOutButton.ToolTipText = "Zoom-out";
//
// centerButton
//
this.centerButton.ButtonType = MapInfo.Windows.Controls.MapToolButtonType.Center;
this.centerButton.Name = "centerButton";
this.centerButton.ToolTipText = "Center";
//
// panButton
//
this.panButton.ButtonType = MapInfo.Windows.Controls.MapToolButtonType.Pan;
this.panButton.Name = "panButton";
this.panButton.ToolTipText = "Pan";
//
// LayerControlDemoForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(664, 493);
this.Controls.Add(this.mapToolBar1);
this.Controls.Add(this.checkBoxShowContextMenu);
this.Controls.Add(this.buttonCustomStyleTab);
this.Controls.Add(this.buttonAddMenuItem);
this.Controls.Add(this.buttonRemoveMapViewTab);
this.Controls.Add(this.buttonDisableMapViewTab);
this.Controls.Add(this.buttonDisableRemovals);
this.Controls.Add(this.buttonLabelLayers);
this.Controls.Add(this.checkBoxConfirmationPrompt);
this.Controls.Add(this.checkBoxShowMapNode);
this.Controls.Add(this.checkBoxToolTips);
this.Controls.Add(this.checkBoxShowAddButton);
this.Controls.Add(this.mapControl1);
this.Controls.Add(this.layerControl1);
this.MinimumSize = new System.Drawing.Size(660, 470);
this.Name = "LayerControlDemoForm";
this.Text = "Layer Control Demo";
this.Load += new System.EventHandler(this.LayerControlDemoForm_Load);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new LayerControlDemoForm());
}
// The method called when the user clicks the Disable Layer Removal button
private void buttonDisableRemovals_Click(object sender, System.EventArgs e)
{
string prompt = "This button prevents the user from removing FeatureLayer, "
+ "GroupLayer, or LabelLayer nodes. It does not prevent the user "
+ "from removing theme nodes or LabelSource nodes.";
if (ConfirmCustomization(prompt))
{
RestrictLayerRemoval();
RefreshLayerTree();
buttonDisableRemovals.Enabled = false;
}
}
// The method called when the user checks or clears the
// "Show The Add Button" checkbox
private void checkBoxShowAddButton_CheckedChanged(object sender, System.EventArgs e)
{
// Show or hide the Layer Control's Add button,
// based on whether the checkbox is currently checked.
ShowAddButton(checkBoxShowAddButton.Checked);
}
// The method called when the user checks or clears the
// Show ToolTips checkbox.
private void checkBoxToolTips_CheckedChanged(object sender, System.EventArgs e)
{
layerControl1.ToolTip.Active = checkBoxToolTips.Checked;
}
// The method called when the user checks or clears the
// Show Map Node checkbox.
private void checkBoxShowMapNode_CheckedChanged(object sender, System.EventArgs e)
{
layerControl1.ShowMapNode = checkBoxShowMapNode.Checked;
RefreshLayerTree();
}
// The method called when the user checks or clears
// the Show Context Menu checkbox
private void checkBoxContextMenuChanged(object sender, System.EventArgs e)
{
layerControl1.ShowContextMenu = checkBoxShowContextMenu.Checked;
}
// The method called when the user checks or clears the
// Suppress All Confirmation Prompts checkbox.
private void checkBoxConfirmationPrompt_CheckedChanged(object sender, System.EventArgs e)
{
// Set the LayerControl object's ConfirmLayerRemoval property,
// which can be used to globally suppress all confirmation
// prompts that are displayed when the user removes a node
// from the layer tree.
layerControl1.ConfirmLayerRemoval = checkBoxConfirmationPrompt.Checked;
// NOTE: You can configure LayerControl so that it displays a
// confirmation prompt for some types of layers (e.g.
// "Do you want to remove this layer?") but does not display
// a confirmation prompt for other types of layers (e.g.
// you might not want to display a confirmation prompt when the
// user removes a Style Override node). To control confirmation
// prompts separately for different types of layers, obtain
// the appropriate ILayerNodeHelper object and set its properties.
}
// The method called when the user clicks Simplify LabelLayer Nodes.
private void buttonLabelLayers_Click(object sender, System.EventArgs e)
{
string prompt = "This button hides all LabelSource nodes, and "
+ "changes the icon that appears next to LabelLayer nodes.";
if (ConfirmCustomization(prompt))
{
CustomizeLabelLayerNodes();
RefreshLayerTree();
buttonLabelLayers.Enabled = false;
}
}
// The method called when the user clicks Disable the Map's View Tab.
private void buttonDisableMapViewTab_Click(object sender, System.EventArgs e)
{
string prompt = "This button disables the options on the View tab, "
+ "which appears when the user selects the Map node.";
if (ConfirmCustomization(prompt))
{
DisableMapViewTab();
buttonDisableMapViewTab.Enabled = false;
}
}
// The method called when the user clicks Remove the Map's View Tab.
private void buttonRemoveMapViewTab_Click(object sender, System.EventArgs e)
{
string prompt = "This button removes the View tab, so that the TabControl "
+ "does not contain a View tab when the user chooses the Map node.";
if (ConfirmCustomization(prompt))
{
RemoveMapViewTab();
RefreshLayerTree();
buttonRemoveMapViewTab.Enabled = false;
// Since we have removed the View tab, we must now disable
// the button on the demo form that allows you to make
// other changes to the View tab
buttonDisableMapViewTab.Enabled = false;
}
}
// The method called when the user clicks Add Custom Menuitems.
private void buttonAddMenuItem_Click(object sender, System.EventArgs e)
{
string prompt = "This button adds custom menu items to right-click menus: "
+ "a 'Choose Coordinate System' menu item (on the Map node's menu); "
+ "a 'Find Labels' menu item (on each FeatureLayer node's menu); and "
+ "a 'Find Layers' menu item (on each LabelSource node's menu).";
if (ConfirmCustomization(prompt))
{
// Add the custom item to the Map node's menu
AddChooseCoordSysMenuitem();
// Add custom items to the FeatureLayer and LabelSource menus
LayerControlEnhancer lce = new LayerControlEnhancer();
lce.LayerControl = layerControl1;
lce.AddLayerToLabelEnhancement();
buttonAddMenuItem.Enabled = false;
}
}
// The method called when the user clicks Add Custom Map Style Tab.
private void buttonCustomStyleTab_Click(object sender, System.EventArgs e)
{
string prompt = "This button adds a custom 'Style' tab that allows the "
+ "user to select the Map node, then choose a map background color.";
if (ConfirmCustomization(prompt))
{
AddCustomMapStyleTab();
RefreshLayerTree();
buttonCustomStyleTab.Enabled = false;
}
}
// A method that re-assigns the LayerControl's Map property, which
// causes the LayerControl to regenerate the hierarchy of nodes
// displayed in the layer tree. (Most applications do not need to
// re-assign the Map property in this manner, because most
// applications set LayerControl properties once, at the beginning;
// but this application lets you set LayerControl properties on the
// fly, which can create situations where the layer tree needs to
// be recreated.)
private void RefreshLayerTree() {
layerControl1.Map = mapControl1.Map;
}
// A method that displays a confirmation dialog and determines whether
// the user chooses OK or Cancel.
private bool ConfirmCustomization(string prompt)
{
DialogResult result = DialogResult.Yes;
string caption = "Confirm Layer Control Customization";
MessageBoxButtons buttons = MessageBoxButtons.YesNo;
result = MessageBox.Show(this, prompt + " Do you want to proceed?",
caption, buttons, MessageBoxIcon.Question,
MessageBoxDefaultButton.Button1);
if(result == DialogResult.Yes)
{
return true;
}
return false;
}
private void LayerControlDemoForm_Load(object sender, EventArgs e)
{
}
private void mapToolBar1_ButtonClick(object sender, ToolBarButtonClickEventArgs e)
{
}
}
}
标签：
LayerControl 
上一条：
下一条：
相关评论
发表评论