/// <summary>
/// Handles the MouseDown event when the object pointer tool is selected
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">The mouse event args</param>
/// <remarks>
/// The strategy to handle the mousedown event is as following:
///
/// Have we clicked on already selected objects?
/// if yes (we have clicked on already selected objects) and the shift or control key was pressed -> deselect the object and repaint
/// if yes (we have clicked on already selected objects) and none shift nor control key was pressed-> activate the object moving mode
/// if no (we have not clicked on already selected objects) and shift or control key was pressed -> search for the object and add it to the selected objects, then aktivate moving mode
/// if no (we have not clicked on already selected objects) and no shift or control key pressed -> if a object was found add it to the selected objects and activate moving mode
/// if no object was found clear the selection list, deactivate moving mode
/// </remarks>
public override void OnMouseDown(PointD2D position, MouseButtonEventArgs e)
{
base.OnMouseDown(position, e);
if (e.LeftButton != MouseButtonState.Pressed)
{
return; // then there is nothing to do here
}
// first, if we have a mousedown without shift key and the
// position has changed with respect to the last mousedown
// we have to deselect all objects
var keyboardModifiers = System.Windows.Input.Keyboard.Modifiers;
bool bControlKey = keyboardModifiers.HasFlag(ModifierKeys.Control);
bool bShiftKey = keyboardModifiers.HasFlag(ModifierKeys.Shift);
var mousePixelCoord = position; // Mouse pixel coordinates
var rootLayerCoord = _grac.ConvertMouseToRootLayerCoordinates(mousePixelCoord); // Graph area coordinates
ActiveGrip = GripHitTest(rootLayerCoord);
if ((ActiveGrip is SuperGrip) && (bShiftKey || bControlKey))
{
var superGrip = ActiveGrip as SuperGrip;
if (superGrip.GetHittedElement(rootLayerCoord, out var gripHandle, out var hitTestObj))
{
_selectedObjects.Remove(hitTestObj);
superGrip.Remove(gripHandle);
return;
}
}
else if (ActiveGrip != null)
{
ActiveGrip.Activate(rootLayerCoord, false);
return;
}
_grac.FindGraphObjectAtPixelPosition(mousePixelCoord, false, out var clickedObject, out var clickedLayerNumber);
if (!bShiftKey && !bControlKey) // if shift or control are pressed, we add the object to the selection list and start moving mode
{
ClearSelections();
}
if (null != clickedObject)
{
AddSelectedObject(rootLayerCoord, clickedObject);
}
} // end of function
public override void OnMouseDown(PointD2D position, MouseButtonEventArgs e)
{
base.OnMouseDown(position, e);
_positionCurrentMouseInRootLayerCoordinates = _grac.ConvertMouseToRootLayerCoordinates(position);
GetClosestGridLine(out var minDistanceSquared, out var minIndex, out var minInXGrid);
if (minDistanceSquared < _catchDistance_RLC * _catchDistance_RLC)
{
_movedGridLineIndex = minIndex;
_movedGridLineIsXGrid = minInXGrid;
}
else
{
FinishDrawing();
}
}
public override void OnMouseMove(PointD2D position, MouseEventArgs e)
{
base.OnMouseMove(position, e);
_positionCurrentMouseInRootLayerCoordinates = _grac.ConvertMouseToRootLayerCoordinates(position);
ModifyCurrentMousePrintAreaCoordinate();
_grac.RenderOverlay();
}
/// <summary>
/// Handles the MouseDown event when the plot point tool is selected
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">The mouse event args</param>
public override void OnMouseDown(PointD2D position, MouseButtonEventArgs e)
{
base.OnMouseDown(position, e);
if (null != _cachedActiveLayer && (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))) // if M is pressed, we don't move the cross, but instead we display not only the cross coordinates but also the difference
{
var printableCoord = _grac.ConvertMouseToRootLayerCoordinates(position);
DisplayCrossCoordinatesAndDifference(printableCoord);
}
else
{
_cachedActiveLayer = _grac.ActiveLayer;
_cachedActiveLayerTransformation = _cachedActiveLayer.TransformationFromRootToHere();
_cachedActiveLayerTransformationGdi = _cachedActiveLayerTransformation;
_positionOfCrossInRootLayerCoordinates = _grac.ConvertMouseToRootLayerCoordinates(position);
DisplayCrossCoordinates();
}
_grac.RenderOverlay(); // no refresh necessary, only invalidate to show the cross
} // end of function
/// <summary>
/// Handles the click event by opening the text tool dialog.
/// </summary>
/// <param name="e">EventArgs.</param>
/// <param name="position">Mouse position.</param>
/// <returns>The mouse state handler for handling the next mouse events.</returns>
public override void OnClick(PointD2D position, MouseButtonEventArgs e)
{
base.OnClick(position, e);
_cachedActiveLayer = _grac.ActiveLayer;
_cachedActiveLayerTransformation = _cachedActiveLayer.TransformationFromRootToHere();
_cachedActiveLayerTransformationGdi = _cachedActiveLayerTransformation;
// get the page coordinates (in Point (1/72") units)
var rootLayerCoord = _grac.ConvertMouseToRootLayerCoordinates(_positionLastMouseDownInMouseCoordinates);
// with knowledge of the current active layer, calculate the layer coordinates from them
var layerCoord = _cachedActiveLayerTransformation.InverseTransformPoint(rootLayerCoord);
var tgo = new TextGraphic(_grac.Doc.GetPropertyContext());
tgo.SetParentSize(_grac.ActiveLayer.Size, false);
tgo.Position = layerCoord;
tgo.ParentObject = _grac.ActiveLayer;
// deselect the text tool
_grac.SetGraphToolFromInternal(GraphToolType.ObjectPointer);
object tgoo = tgo;
if (Current.Gui.ShowDialog(ref tgoo, "Text", false))
{
tgo = (TextGraphic)tgoo;
if (tgo != null && !tgo.Empty)
{
_grac.ActiveLayer.GraphObjects.Add(tgo);
}
}
/*
* TextControlDialog dlg = new TextControlDialog(_grac.Layers[_grac.CurrentLayerNumber],tgo);
* if(DialogResult.OK==dlg.ShowDialog(_grac.View.Window))
* {
* // add the resulting textgraphobject to the layer
* if(!dlg.SimpleTextGraphics.Empty)
* {
* _grac.Layers[_grac.CurrentLayerNumber].GraphObjects.Add(dlg.SimpleTextGraphics);
* _grac.RefreshGraph();
* }
* }
*/
_grac.SetGraphToolFromInternal(GraphToolType.ObjectPointer);
}
public override void OnMouseMove(PointD2D position, MouseEventArgs e)
{
base.OnMouseMove(position, e);
_positionCurrentMouseInRootLayerCoordinates = _grac.ConvertMouseToRootLayerCoordinates(position);
if (e.LeftButton == MouseButtonState.Pressed)
{
ModifyCurrentMousePrintAreaCoordinate();
_grac.RenderOverlay();
}
else if (_currentPoint != 0)
{
_currentPoint = 0;
_grac.RenderOverlay();
}
}
/// <summary>
/// Handles the MouseDown event when the plot point tool is selected
/// </summary>
/// <param name="position">Mouse position.</param>
/// <param name="e">The mouse event args</param>
public override void OnMouseDown(PointD2D position, MouseButtonEventArgs e)
{
base.OnMouseDown(position, e);
var graphXY = _grac.ConvertMouseToRootLayerCoordinates(position);
_grac.FindGraphObjectAtPixelPosition(position, true, out var clickedObject, out var clickedLayerNumber);
if (null != clickedObject && clickedObject.HittedObject is XYColumnPlotItem)
{
_PlotItem = (XYColumnPlotItem)clickedObject.HittedObject;
var transXY = clickedObject.Transformation.InverseTransformPoint(graphXY);
_layer = (XYPlotLayer)(clickedObject.ParentLayer);
XYScatterPointInformation scatterPoint = _PlotItem.GetNearestPlotPoint(_layer, transXY);
_PlotItemNumber = GetPlotItemNumber(_layer, _PlotItem);
if (null != scatterPoint)
{
_PlotIndex = scatterPoint.PlotIndex;
_RowIndex = scatterPoint.RowIndex;
// convert this layer coordinates first to PrintableAreaCoordinates
var rootLayerCoord = clickedObject.ParentLayer.TransformCoordinatesFromHereToRoot(scatterPoint.LayerCoordinates);
_positionOfCrossInRootLayerCoordinates = rootLayerCoord;
// m_Cross.X -= _grac.GraphViewOffset.X;
// m_Cross.Y -= _grac.GraphViewOffset.Y;
var newPixelCoord = _grac.ConvertGraphToMouseCoordinates(rootLayerCoord);
// TODO (Wpf)
//var newCursorPosition = new Point((int)(Cursor.Position.X + newPixelCoord.X - mouseXY.X),(int)(Cursor.Position.Y + newPixelCoord.Y - mouseXY.Y));
//SetCursorPos(newCursorPosition.X, newCursorPosition.Y);
DisplayData(_PlotItem, scatterPoint.RowIndex,
_PlotItem.XYColumnPlotData.XColumn[scatterPoint.RowIndex],
_PlotItem.XYColumnPlotData.YColumn[scatterPoint.RowIndex]);
// here we shoud switch the bitmap cache mode on and link us with the AfterPaint event
// of the grac
_grac.RenderOverlay(); // no refresh necessary, only invalidate to show the cross
}
}
} // end of function