/// <summary>
/// Returns the selection region type actions.
/// </summary>
/// <param name="defaultSelectedRegion">The default selected region.</param>
/// <returns>
/// The selection region type actions.
/// </returns>
private static VisualToolAction[] CreateSelectionRegionTypeActions(
out CustomSelectionRegionTypeAction defaultSelectedRegion)
{
// create action, which allows to select the rectangular image region in an image viewer.
CustomSelectionRegionTypeAction rectangleSelectionRegion =
new CustomSelectionRegionTypeAction(
new RectangularSelectionRegion(),
"Rectangle",
"Rectangle",
GetIcon("CustomSelectionToolRectangle.png"));
// create action, which allows to select the elliptical image region in an image viewer.
CustomSelectionRegionTypeAction ellipticalSelectionRegion =
new CustomSelectionRegionTypeAction(
new EllipticalSelectionRegion(),
"Ellipse",
"Ellipse",
GetIcon("CustomSelectionToolEllipse.png"));
// create action, which allows to select the polygonal image region in an image viewer.
CustomSelectionRegionTypeAction polygonSelectionRegion =
new CustomSelectionRegionTypeAction(
new PolygonalSelectionRegion(),
"Polygon",
"Polygon",
GetIcon("CustomSelectionToolPolygon.png"));
// create action, which allows to select the freehand polygon image region in an image viewer.
CustomSelectionRegionTypeAction lassoSelectionRegion =
new CustomSelectionRegionTypeAction(
new LassoSelectionRegion(),
"Lasso",
"Lasso",
GetIcon("CustomSelectionToolLasso.png"));
// create action, which allows to select the curve image region in an image viewer.
CustomSelectionRegionTypeAction curvesSelectionRegion =
new CustomSelectionRegionTypeAction(
new CurvilinearSelectionRegion(),
"Curves",
"Curves",
GetIcon("CustomSelectionToolCurves.png"));
// set the default selection region
defaultSelectedRegion = lassoSelectionRegion;
// returns the actions
return(new VisualToolAction[] {
rectangleSelectionRegion,
ellipticalSelectionRegion,
polygonSelectionRegion,
lassoSelectionRegion,
curvesSelectionRegion
});
}
/// <summary>
/// Selects the selection region.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void Action_Activated(object sender, EventArgs e)
{
CustomSelectionRegionTypeAction regionTypeAction = (CustomSelectionRegionTypeAction)sender;
if (SelectRegion(regionTypeAction))
{
if (!IsActivated)
{
Activate();
}
}
}
/// <summary>
/// Creates visual tool actions, which allow to enable/disable visual tools (<see cref="RectangularSelectionTool"/> and <see cref="CustomSelectionTool"/>)
/// in image viewer, and adds actions to the toolstrip.
/// </summary>
/// <param name="toolStrip">The toolstrip, where actions must be added.</param>
public static void CreateActions(VisualToolsToolStrip toolStrip)
{
// create action, which allows to select rectangle on image in image viewer
RectangularSelectionAction rectangularSelectionAction =
new RectangularSelectionAction(
new RectangularSelectionToolWithCopyPaste(),
"Rectangular Selection",
"Rectangular Selection",
GetIcon("RectangularSelectionTool.png"));
// add the action to the toolstrip
toolStrip.AddAction(rectangularSelectionAction);
// create the custom selection tool
CustomSelectionTool elipticalSelection = new CustomSelectionTool();
// set the elliptical selection as the current selection in the custom selection tool
elipticalSelection.Selection = new EllipticalSelectionRegion();
// create action, which allows to select the elliptical image region in an image viewer
CustomSelectionAction ellipticalSelectionAction = new CustomSelectionAction(
elipticalSelection,
"Elliptical Selection",
"Elliptical Selection",
GetIcon("CustomSelectionToolEllipse.png"));
// add the action to the toolstrip
toolStrip.AddAction(ellipticalSelectionAction);
// the default selection region type
CustomSelectionRegionTypeAction defaultSelectedRegion = null;
// create action, which allows to select the custom image region in an image viewer
CustomSelectionAction customSelectionAction =
new CustomSelectionAction(
new CustomSelectionTool(),
"Custom Selection",
"Custom Selection",
null,
CreateSelectionRegionTypeActions(out defaultSelectedRegion));
// set the default selection region type
customSelectionAction.SelectRegion(defaultSelectedRegion);
// add the action to the toolstrip
toolStrip.AddAction(customSelectionAction);
}
/// <summary>
/// Initializes a new instance of the <see cref="CustomSelectionAction"/> class.
/// </summary>
/// <param name="visualTool">The visual tool.</param>
/// <param name="text">The action text.</param>
/// <param name="toolTip">The action tool tip.</param>
/// <param name="icon">The action icon.</param>
/// <param name="subActions">The sub-actions of the action.</param>
public CustomSelectionAction(
CustomSelectionTool visualTool,
string text,
string toolTip,
Image icon,
params VisualToolAction[] subActions)
: base(visualTool, text, toolTip, icon, subActions)
{
_activatedRegionTypeAction = null;
if (subActions != null)
{
foreach (VisualToolAction subaction in subActions)
{
if (subaction is CustomSelectionRegionTypeAction)
{
subaction.Activated += new EventHandler(Action_Activated);
}
}
}
}
/// <summary>
/// Selects the specified region.
/// </summary>
/// <param name="regionTypeAction">The region type action.</param>
/// <returns>
/// <b>True</b> - the specified region is selected; otherwise <b>false</b>.
/// </returns>
public bool SelectRegion(CustomSelectionRegionTypeAction regionTypeAction)
{
if (regionTypeAction == null || _activatedRegionTypeAction == regionTypeAction)
{
return(false);
}
if (_activatedRegionTypeAction != null)
{
_activatedRegionTypeAction.Deactivate();
}
_activatedRegionTypeAction = regionTypeAction;
CustomSelectionTool visualTool = (CustomSelectionTool)VisualTool;
visualTool.Selection = regionTypeAction.Region;
SetIcon(regionTypeAction.Icon);
return(true);
}
