/// <summary>
/// Prepare the editor for editing.
/// </summary>
public static void StartEditing()
{
// Select a layer to edit first
int rasterLayerCount = ArcMapApp.RasterLayerCount;
if (rasterLayerCount == 1)
{
Editor.activeLayer = ArcMapApp.GetRasterLayer();
}
else
{
SelectLayerForm selectLayerForm = new SelectLayerForm();
selectLayerForm.ShowDialog();
if (selectLayerForm.ReturnLayer == null)
{
return;
}
Editor.activeLayer = selectLayerForm.ReturnLayer;
}
Editor.IsEditing = true;
Editor.Edits.Clear();
// Enable the save button
SaveEditsButton saveButton = AddIn.FromID <SaveEditsButton>(ThisAddIn.IDs.SaveEditsButton);
saveButton.IsEnabled = true;
// Enable the save as button
SaveEditsAsButton saveAsButton = AddIn.FromID <SaveEditsAsButton>(ThisAddIn.IDs.SaveEditsAsButton);
saveAsButton.IsEnabled = true;
// Enable the stop button
StopEditingButton stopButton = AddIn.FromID <StopEditingButton>(ThisAddIn.IDs.StopEditingButton);
stopButton.IsEnabled = true;
// Enable the edit tool.
EditTool selectTool = AddIn.FromID <EditTool>(ThisAddIn.IDs.EditTool);
selectTool.IsEnabled = true;
// Disable the start button
StartEditingButton startEditingButton = AddIn.FromID <StartEditingButton>(ThisAddIn.IDs.StartEditingButton);
startEditingButton.IsEnabled = false;
// Enable the ShowEditsButton
ShowEditsButton showEditsButton = AddIn.FromID <ShowEditsButton>(ThisAddIn.IDs.ShowEditsButton);
showEditsButton.IsEnabled = true;
}
/// <summary>
/// Start to track the rectangle when mouse down.
/// </summary>
/// <param name="arg"></param>
protected override void OnMouseDown(ESRI.ArcGIS.Desktop.AddIns.Tool.MouseEventArgs arg)
{
base.OnMouseDown(arg);
activeLayer = ArcMapApp.GetRasterLayer();
if (activeLayer != null)
{
try
{
Display.ClearElement(Editor.Selections.GetAllGraphicElements());
Editor.Selections.Clear();
// Define the selection symbol.
IRgbColor color = new RgbColorClass();
color.Red = 255;
color.Green = 255;
color.Blue = 255;
ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass();
lineSymbol.Width = 1;
lineSymbol.Color = (IColor)color;
IPoint startCoor = Editor.ScreenCoor2MapCoor(arg.X, arg.Y);
newEnvelopeFeedback = new NewEnvelopeFeedbackClass();
newEnvelopeFeedback.Display = ArcMap.Document.ActiveView.ScreenDisplay;
newEnvelopeFeedback.Symbol = (ISymbol)lineSymbol;
newEnvelopeFeedback.Start(startCoor);
// Get the maximum extent of the active layer.
IRasterProps rasterProps = (IRasterProps)activeLayer.Raster;
maxExtent = new Position(rasterProps.Width, rasterProps.Height);
}
catch (Exception ex)
{
MessageBox.Show(string.Format("Unfortunately, the application meets an error.\n\nSource: {0}\nSite: {1}\nMessage: {2}", ex.Source, ex.TargetSite, ex.Message), "Error");
}
}
}
/// <summary>
/// Select the pixels when mouse up.
/// </summary>
/// <param name="arg"></param>
protected override void OnMouseUp(ESRI.ArcGIS.Desktop.AddIns.Tool.MouseEventArgs arg)
{
base.OnMouseUp(arg);
if (activeLayer != null)
{
try
{
IEnvelope envelop = newEnvelopeFeedback.Stop();
UID dockWinID = new UIDClass();
dockWinID.Value = ThisAddIn.IDs.IdentifyForm;
// Use GetDockableWindow directly as we want the client IDockableWindow not the internal class
IDockableWindow dockWindow = ArcMap.DockableWindowManager.GetDockableWindow(dockWinID);
IdentifyForm identifyForm = AddIn.FromID <IdentifyForm.AddinImpl>(ThisAddIn.IDs.IdentifyForm).UI;
Position tlCorner, brCorner;
if (envelop.UpperLeft.IsEmpty)
{
tlCorner = Editor.ScreenCoor2RasterCoor(arg.X, arg.Y, activeLayer);
brCorner = tlCorner;
}
else
{
tlCorner = Editor.MapCoor2RasterCoor(envelop.UpperLeft, activeLayer);
brCorner = Editor.MapCoor2RasterCoor(envelop.LowerRight, activeLayer);
}
if (!IsIntersect(tlCorner, brCorner, maxExtent))
{
identifyForm.ClearValues();
return;
}
tlCorner.Adjust(0, 0, maxExtent.Column, maxExtent.Row);
brCorner.Adjust(0, 0, maxExtent.Column, maxExtent.Row);
// Show symbols of selected pixels
for (int row = tlCorner.Row; row <= brCorner.Row; row++)
{
for (int col = tlCorner.Column; col <= brCorner.Column; col++)
{
Pixel pixel = new Pixel(new Position(col, row));
pixel.GraphicElement = Display.DrawBox(pixel.Position, Editor.GetSelectionSymbol(), ArcMapApp.GetRasterLayer());
Editor.Selections.Add(pixel);
}
}
double[,] values = Editor.GetValues(tlCorner, brCorner, activeLayer.Raster);
identifyForm.SetValues(tlCorner, brCorner, values);
identifyForm.SetLayerName(activeLayer.Name);
if (!dockWindow.IsVisible())
{
dockWindow.Show(true);
}
}
catch (Exception ex)
{
MessageBox.Show(string.Format("Unfortunately, the application meets an error.\n\nSource: {0}\nSite: {1}\nMessage: {2}", ex.Source, ex.TargetSite, ex.Message), "Error");
}
}
}