/// <summary>
/// Can be called from the mouse up event of the ArcMap tool.
/// </summary>
/// <param name="x">Clicked x coordinate.</param>
/// <param name="y">Clicked y coordinate.</param>
/// <returns>The picked feature candidate or null if no feature was picked.</returns>
public ArcmapPickCandidate OnMouseUp(int x, int y)
{
ArcmapPickCandidate result = null;
IScreenDisplay screenDisplay = ArcmapUtils.FocusMapToScreenDisplay(FocusMap);
IPoint mapPoint = TransformMousePositionToMapPoint(x, y, screenDisplay);
double searchTolerance = ArcmapUtils.PixelsToDistance(_snapTolerance, screenDisplay);
double mapScale = GetCurrentMapScale(screenDisplay);
List <ArcmapPickCandidate> pickCandidates = FindPickCandidates(mapPoint, _pickLayers, mapScale, searchTolerance);
SortPickCandidates(pickCandidates);
if (pickCandidates.Count == 1)
{
result = pickCandidates[0];
}
else if (pickCandidates.Count > 1)
{
System.Drawing.Point position = new System.Drawing.Point(x + popupShiftH, y + popupShiftV);
ContextMenuStrip menu = BuildContextMenu(pickCandidates);
menu.Opacity = 0.9;
_selectedCandidate = null;
ContextMenuUtils.ShowContextMenu(menu, position, (IntPtr)ArcmapUtils.FocusMapToScreenDisplay(FocusMap).hWnd);
if (_selectedCandidate != null)
{
result = _selectedCandidate;
}
}
return(result);
}
private void contextMenuItem_Select(object sender, EventArgs e)
{
object menuTag = ((ToolStripItem)sender).Tag;
ArcmapPickCandidate candidate = (ArcmapPickCandidate)menuTag;
ArcmapUtils.FlashFeature(candidate.Feature, ArcmapUtils.FocusMapToScreenDisplay(FocusMap));
}
/// <summary>
/// Enumerates all workspaces in ArcMap.
/// </summary>
/// <param name="esriApplication">The Esri application istance.</param>
/// <returns>Enumeration of workspaces.</returns>
public static IEnumerable <IWorkspace> EnumerateAllWorkspaces(IApplication esriApplication)
{
HashSet <IWorkspace> duplicateFinder = new HashSet <IWorkspace>();
foreach (IDataset dataset in ArcmapUtils.EnumerateAllDatasets(esriApplication))
{
IWorkspace workspace = dataset.Workspace;
if ((workspace != null) && !duplicateFinder.Contains(workspace))
{
duplicateFinder.Add(workspace);
yield return(workspace);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ArcmapPickCandidate"/> class.
/// </summary>
/// <param name="identifyOby">Identified object.</param>
/// <param name="distance">Distance from the identified object to the mouse click.</param>
public ArcmapPickCandidate(IIdentifyObj identifyOby, double distance)
{
IdentifyObj = identifyOby;
DistanceToClickPoint = distance;
GeometryType = ArcmapUtils.DetectGeometryBaseType(Feature.Shape);
}