About the Custom map navigation commands Sample
[C#]
ZoomIn.cs
using System; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.Display; using ESRI.ArcGIS.SystemUI; using ESRI.ArcGIS.ADF.CATIDs; using System.Runtime.InteropServices; namespace PanZoom { [ClassInterface(ClassInterfaceType.None)] [Guid("2C214724-BFA2-4e8c-BC5D-775C67FA6F51")] public class ZoomIn : ICommand, ITool { #region COM Registration Function(s) [ComRegisterFunction()] [ComVisible(false)] static void RegisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryRegistration(registerType); // // TODO: Add any COM registration code here // } [ComUnregisterFunction()] [ComVisible(false)] static void UnregisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryUnregistration(registerType); // // TODO: Add any COM unregistration code here // } #region ArcGIS Component Category Registrar generated code /// <summary> /// Required method for ArcGIS Component Category registration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryRegistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); ControlsCommands.Register(regKey); } /// <summary> /// Required method for ArcGIS Component Category unregistration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryUnregistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); ControlsCommands.Unregister(regKey); } #endregion #endregion [DllImport("gdi32.dll")] static extern bool DeleteObject(IntPtr hObject); private System.Drawing.Bitmap m_bitmap; private IntPtr m_hBitmap; private IHookHelper m_pHookHelper; private INewEnvelopeFeedback m_feedBack; private IPoint m_point; private Boolean m_isMouseDown; private System.Windows.Forms.Cursor m_zoomInCur; private System.Windows.Forms.Cursor m_moveZoomInCur; public ZoomIn() { //Load resources string[] res = GetType().Assembly.GetManifestResourceNames(); if(res.GetLength(0) > 0) { m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream(GetType(), "ZoomIn.bmp")); if(m_bitmap != null) { m_bitmap.MakeTransparent(m_bitmap.GetPixel(1,1)); m_hBitmap = m_bitmap.GetHbitmap(); } } m_pHookHelper = new HookHelperClass (); } ~ZoomIn() { if(m_hBitmap.ToInt32() != 0) DeleteObject(m_hBitmap); } #region ICommand Members public void OnClick() { } public string Message { get { return "zooms the Display In By Rectangle or Single Click"; } } public int Bitmap { get { return m_hBitmap.ToInt32(); } } public void OnCreate(object hook) { m_pHookHelper.Hook = hook; m_zoomInCur = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream(GetType(), "ZoomIn.cur")); m_moveZoomInCur = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream(GetType(), "MoveZoomIn.cur")); } public string Caption { get { return "Zoom In"; } } public string Tooltip { get { return "Zoom In"; } } public int HelpContextID { get { // TODO: Add ZoomIn.HelpContextID getter implementation return 0; } } public string Name { get { return "Sample_Pan/Zoom_Zoom In"; } } public bool Checked { get { return false; } } public bool Enabled { get { if(m_pHookHelper.FocusMap == null) return false; return true; } } public string HelpFile { get { // TODO: Add ZoomIn.HelpFile getter implementation return null; } } public string Category { get { return "Sample_Pan/Zoom"; } } #endregion #region ITool Members public void OnMouseDown(int button, int shift, int x, int y) { if(m_pHookHelper.ActiveView == null) return; //If the active view is a page layout if(m_pHookHelper.ActiveView is IPageLayout) { //Create a point in map coordinates IPoint pPoint = (IPoint) m_pHookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y); //Get the map if the point is within a data frame IMap pMap = m_pHookHelper.ActiveView.HitTestMap(pPoint); if(pMap == null) return; //Set the map to be the page layout's focus map if(pMap != m_pHookHelper.FocusMap) { m_pHookHelper.ActiveView.FocusMap = pMap; m_pHookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } } //Create a point in map coordinates IActiveView pActiveView = (IActiveView) m_pHookHelper.FocusMap; m_point = pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y); m_isMouseDown = true; } public void OnMouseMove(int button, int shift, int x, int y) { if(!m_isMouseDown) return; //Get the focus map IActiveView pActiveView = (IActiveView) m_pHookHelper.FocusMap; //Start an envelope feedback if(m_feedBack == null) { m_feedBack = new NewEnvelopeFeedbackClass(); m_feedBack.Display = pActiveView.ScreenDisplay; m_feedBack.Start(m_point); } //Move the envelope feedback m_feedBack.MoveTo(pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y)); } public void OnMouseUp(int button, int shift, int x, int y) { if(!m_isMouseDown) return; //Get the focus map IActiveView pActiveView = (IActiveView) m_pHookHelper.FocusMap; //If an envelope has not been tracked IEnvelope pEnvelope; if(m_feedBack == null) { //Zoom in from mouse click pEnvelope = pActiveView.Extent; pEnvelope.Expand(0.5, 0.5, true); pEnvelope.CenterAt(m_point); } else { //Stop the envelope feedback pEnvelope = m_feedBack.Stop(); //Exit if the envelope height or width is 0 if(pEnvelope.Width ==0 || pEnvelope.Height == 0) { m_feedBack = null; m_isMouseDown = false; } } //Set the new extent pActiveView.Extent = pEnvelope; //Refresh the active view pActiveView.Refresh(); m_feedBack = null; m_isMouseDown = false; } public void OnKeyDown(int keyCode, int shift) { if(m_isMouseDown) { if(keyCode == 27) { m_isMouseDown = false; m_feedBack = null; m_pHookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewForeground, null, null); } } } public void OnKeyUp(int keyCode, int shift) { // TODO: Add ZoomIn.OnKeyUp implementation } public int Cursor { get { if(m_isMouseDown) return m_moveZoomInCur.Handle.ToInt32(); else return m_zoomInCur.Handle.ToInt32(); } } public bool OnContextMenu(int x, int y) { // TODO: Add ZoomIn.OnContextMenu implementation return false; } public bool Deactivate() { return true; } public void Refresh(int hdc) { // TODO: Add ZoomIn.Refresh implementation } public void OnDblClick() { // TODO: Add ZoomIn.OnDblClick implementation } #endregion } }
[Visual Basic .NET]
ZoomIn.vb
Imports ESRI.ArcGIS.Carto Imports ESRI.ArcGIS.GeomeTry Imports ESRI.ArcGIS.Controls Imports ESRI.ArcGIS.Display Imports ESRI.ArcGIS.ADF.BaseClasses Imports ESRI.ArcGIS.ADF.CATIDs Imports System.Runtime.InteropServices <ComClass(ZoomIn.ClassId, ZoomIn.InterfaceId, ZoomIn.EventsId)> _ Public NotInheritable Class ZoomIn Inherits BaseTool #Region "COM GUIDs" ' These GUIDs provide the COM identity for this class ' and its COM interfaces. If you change them, existing ' clients will no longer be able to access the class. Public Const ClassId As String = "DAEDFD5C-7CFE-4EB2-AC50-E62CFEB0EABA" Public Const InterfaceId As String = "2EA141CC-94C4-48C7-912F-4786422D362A" Public Const EventsId As String = "1582A9D9-AE09-432F-8DB2-9BE2A0030B96" #End Region #Region "COM Registration Function(s)" <ComRegisterFunction(), ComVisibleAttribute(False)> _ Public Shared Sub RegisterFunction(ByVal registerType As Type) ' Required for ArcGIS Component Category Registrar support ArcGISCategoryRegistration(registerType) 'Add any COM registration code after the ArcGISCategoryRegistration() call End Sub <ComUnregisterFunction(), ComVisibleAttribute(False)> _ Public Shared Sub UnregisterFunction(ByVal registerType As Type) ' Required for ArcGIS Component Category Registrar support ArcGISCategoryUnregistration(registerType) 'Add any COM unregistration code after the ArcGISCategoryUnregistration() call End Sub #Region "ArcGIS Component Category Registrar generated code" ''' <summary> ''' Required method for ArcGIS Component Category registration - ''' Do not modify the contents of this method with the code editor. ''' </summary> Private Shared Sub ArcGISCategoryRegistration(ByVal registerType As Type) Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID) ControlsCommands.Register(regKey) End Sub ''' <summary> ''' Required method for ArcGIS Component Category unregistration - ''' Do not modify the contents of this method with the code editor. ''' </summary> Private Shared Sub ArcGISCategoryUnregistration(ByVal registerType As Type) Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID) ControlsCommands.Unregister(regKey) End Sub #End Region #End Region Private m_pHookHelper As IHookHelper Private m_feedBack As INewEnvelopeFeedback Private m_point As IPoint Private m_isMouseDown As Boolean Private m_zoomInCur As System.Windows.Forms.Cursor Private m_moveZoomInCur As System.Windows.Forms.Cursor ' A creatable COM class must have a Public Sub New() ' with no parameters, otherwise, the class will not be ' registered in the COM registry and cannot be created ' via CreateObject. Public Sub New() MyBase.New() MyBase.m_category = "Sample_Pan_VBNET/Zoom" MyBase.m_caption = "Zoom In" MyBase.m_message = "Zooms the Display In By Rectangle or Single Click" MyBase.m_toolTip = "Zoom In" MyBase.m_name = "Sample_Pan/Zoom_Zoom In" Dim res() As String = GetType(ZoomIn).Assembly.GetManifestResourceNames() If res.GetLength(0) > 0 Then MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(ZoomIn).Assembly.GetManifestResourceStream("PanZoomVBNET.ZoomIn.bmp")) End If m_pHookHelper = New HookHelperClass End Sub Public Overrides Sub OnCreate(ByVal hook As Object) m_pHookHelper.Hook = hook m_zoomInCur = New System.Windows.Forms.Cursor(GetType(ZoomIn).Assembly.GetManifestResourceStream("PanZoomVBNET.ZoomIn.cur")) m_moveZoomInCur = New System.Windows.Forms.Cursor(GetType(ZoomIn).Assembly.GetManifestResourceStream("PanZoomVBNET.MoveZoomIn.cur")) End Sub Public Overrides ReadOnly Property Enabled() As Boolean Get If m_pHookHelper.FocusMap Is Nothing Then Return False End If Return True End Get End Property Public Overrides Sub OnMouseDown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer) If m_pHookHelper.ActiveView Is Nothing Then Return End If 'If the active view is a page layout If TypeOf m_pHookHelper.ActiveView Is IPageLayout Then 'Create a point in map coordinates Dim pPoint As IPoint = CType(m_pHookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y), IPoint) 'Get the map if the point is within a data frame Dim pMap As IMap = m_pHookHelper.ActiveView.HitTestMap(pPoint) If pMap Is Nothing Then Return End If 'Set the map to be the page layout's focus map If Not pMap Is m_pHookHelper.FocusMap Then m_pHookHelper.ActiveView.FocusMap = pMap m_pHookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, Nothing, Nothing) End If End If 'Create a point in map coordinates Dim pActiveView As IActiveView = CType(m_pHookHelper.FocusMap, IActiveView) m_point = pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y) m_isMouseDown = True End Sub Public Overrides Sub OnMouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer) If Not m_isMouseDown Then Return End If 'Get the focus map Dim pActiveView As IActiveView = CType(m_pHookHelper.FocusMap, IActiveView) 'Start an envelope feedback If m_feedBack Is Nothing Then m_feedBack = New NewEnvelopeFeedbackClass m_feedBack.Display = pActiveView.ScreenDisplay m_feedBack.Start(m_point) End If 'Move the envelope feedback m_feedBack.MoveTo(pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y)) End Sub Public Overrides Sub OnMouseUp(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer) If Not m_isMouseDown Then Return End If 'Get the focus map Dim pActiveView As IActiveView = CType(m_pHookHelper.FocusMap, IActiveView) 'If an envelope has not been tracked Dim pEnvelope As IEnvelope If m_feedBack Is Nothing Then 'Zoom in from mouse click pEnvelope = pActiveView.Extent pEnvelope.Expand(0.5, 0.5, True) pEnvelope.CenterAt(m_point) Else 'Stop the envelope feedback pEnvelope = m_feedBack.Stop() 'Exit if the envelope height or width is 0 If pEnvelope.Width = 0 Or pEnvelope.Height = 0 Then m_feedBack = Nothing m_isMouseDown = False End If End If 'Set the new extent pActiveView.Extent = pEnvelope 'Refresh the active view pActiveView.Refresh() m_feedBack = Nothing m_isMouseDown = False End Sub Public Overrides Sub OnKeyDown(ByVal keyCode As Integer, ByVal Shift As Integer) If (m_isMouseDown) Then If (keyCode = 27) Then m_isMouseDown = False m_feedBack = Nothing m_pHookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewForeground, Nothing, Nothing) End If End If End Sub Public Overrides ReadOnly Property Cursor() As Integer Get If (m_isMouseDown) Then Return m_moveZoomInCur.Handle.ToInt32() Else Return m_zoomInCur.Handle.ToInt32() End If End Get End Property End Class