private void MainImage_MouseDown(object sender, MouseButtonEventArgs e)
{
if (DataContext is ViewModel vm)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
if (e.ClickCount == 2)
{
vm.SolidMode = false;
vm.SetRotation(0.0, 0.0);
}
else if (e.ClickCount < 2)
{
_draggingMode = DraggingMode.Left;
_x = vm.CenterX;
_y = vm.CenterY;
_dragStart = e.GetPosition(MainImage);
MainImage.CaptureMouse();
}
}
else if (e.RightButton == MouseButtonState.Pressed)
{
_draggingMode = DraggingMode.Right;
_x = vm.Yaw;
_y = vm.Pitch;
_dragStart = e.GetPosition(MainImage);
MainImage.CaptureMouse();
}
else
{
_draggingMode = DraggingMode.None;
MainImage.ReleaseMouseCapture();
}
}
}
private void Drag(object target, DraggingMode draggingMode, System.Windows.Input.MouseEventArgs e)
{
mouseMoving = true;
if (e.LeftButton == MouseButtonState.Pressed)
{
System.Windows.Controls.Control targetControl = target as System.Windows.Controls.Control;
System.Windows.Point position = e.GetPosition(dragCanvas);
if (Math.Abs(position.X - mouseStartPoint.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(position.Y - mouseStartPoint.Y) > SystemParameters.MinimumVerticalDragDistance)
{
isDragging = true;
double x = position.X - targetControl.Width / 2;
double y = position.Y - targetControl.Height / 2;
//Console.WriteLine(position.X + ":" + position.Y + " ~ " + targetControl.Margin.Left + ":" + targetControl.Margin.Top);
switch (draggingMode)
{
case DraggingMode.Horizontal:
Canvas.SetLeft(targetControl, x);
break;
case DraggingMode.Vertical:
Canvas.SetTop(targetControl, y);
break;
case DraggingMode.Both:
//targetControl.Margin = new Thickness(x, y, 0, 0);
Canvas.SetLeft(targetControl, x);
Canvas.SetTop(targetControl, y);
break;
}
}
}
}
private void GraphEditorClass_MouseUp(object sender, MouseEventArgs e)
{
if (_heldButton == e.Button)
{
_heldButton = MouseButtons.None;
PointF documentPoint = ClientToDocumentPoint(new PointF(e.X, e.Y));
switch (_draggingMode)
{
case DraggingMode.MoveNode:
UpdateSelectedObject(documentPoint);
break;
case DraggingMode.DrawLine:
GraphNode destShape = GetHitObjectInternal(documentPoint) as GraphNode;
if ((destShape != null) && (destShape != _selectedObject) && (_selectedObject is GraphNode))
{
AddLine(_selectedObject as GraphNode, destShape);
}
Invalidate();
break;
case DraggingMode.ScrollWindow:
Cursor = Cursors.Arrow;
break;
}
_draggingMode = DraggingMode.None;
}
}
/// <summary>
/// Drags elements by the delta.
/// </summary>
/// <param name="delta"></param>
/// <param name="draggingMode">describes the way we process the dragging </param>
/// <param name="lastPointerPosition">the last position of the pointer.</param>
internal void Drag(Point delta, DraggingMode draggingMode, Point lastPointerPosition)
{
GraphBoundingBoxGetsExtended = false;
if (delta.X != 0 || delta.Y != 0)
{
if (EditedEdge == null)
{
if (EdgeRoutingMode != EdgeRoutingMode.Rectilinear &&
EdgeRoutingMode != EdgeRoutingMode.RectilinearToCenter)
{
DragObjectsForNonRectilinearCase(delta, draggingMode);
}
else
{
DragObjectsForRectilinearCase(delta);
}
}
else
{
DragEdgeEdit(lastPointerPosition, delta);
UpdateGraphBoundingBoxWithCheck(EditedEdge);
}
}
}
private void GraphEditorClass_MouseDown(object sender, MouseEventArgs e)
{
PointF mousePos = ClientToDocumentPoint(new PointF(e.X, e.Y));
if (_heldButton == MouseButtons.None)
{
if ((e.Button == MouseButtons.Left) && (ModifierKeys != Keys.Control))
{
SelectObjectInternal(mousePos);
_lastDragPoint = mousePos;
_heldButton = e.Button;
_draggingMode = DraggingMode.MoveNode;
}
else if ((e.Button == MouseButtons.Middle) || ((e.Button == MouseButtons.Left) && (ModifierKeys == Keys.Control)))
{
IGraphObject s = SelectObjectInternal(mousePos);
if ((s != null) && (s is GraphNode))
{
_lastDragPoint = mousePos;
_heldButton = e.Button;
_draggingMode = DraggingMode.DrawLine;
}
else if (s == null)
{
_lastDragPoint = mousePos;
_heldButton = e.Button;
_draggingMode = DraggingMode.ScrollWindow;
this.Cursor = Cursors.SizeAll;
}
}
}
Focus();
}
private void RangeHistogram_MouseUp(object sender, MouseEventArgs e)
{
whiteToolTip.Hide(this);
blackToolTip.Hide(this);
m_DragMode = DraggingMode.NONE;
m_mousePrev.X = m_mousePrev.Y = -1;
}
// This handler tries to figure out which handle (white or black) you were trying to
// grab when you clicked.
private void RangeHistogram_MouseDown(object sender, MouseEventArgs e)
{
if(e.Button != MouseButtons.Left || !ValidRange)
return;
Rectangle rect = this.ClientRectangle;
rect.Inflate(-m_TotalSpace, -m_TotalSpace);
int whiteX = (int)(m_WhiteDelta * rect.Width);
int blackX = (int)(m_BlackDelta * rect.Width);
var whiteVec = new PointF(whiteX - e.Location.X, ClientRectangle.Height - e.Location.Y);
var blackVec = new PointF(blackX-e.Location.X, e.Location.Y);
float whitedist = (float)Math.Sqrt(whiteVec.X * whiteVec.X + whiteVec.Y * whiteVec.Y);
float blackdist = (float)Math.Sqrt(blackVec.X * blackVec.X + blackVec.Y * blackVec.Y);
System.Diagnostics.Trace.WriteLine(string.Format("white {0} black {1}", whitedist, blackdist));
if (whitedist < blackdist && whitedist < 18.0f)
m_DragMode = DraggingMode.WHITE;
else if (blackdist < whitedist && blackdist < 18.0f)
m_DragMode = DraggingMode.BLACK;
else if (e.Location.X > whiteX)
m_DragMode = DraggingMode.WHITE;
else if (e.Location.X < blackX)
m_DragMode = DraggingMode.BLACK;
if (m_DragMode == DraggingMode.WHITE)
{
float newWhite = (float)(e.Location.X - m_TotalSpace) / (float)m_RegionWidth;
m_WhiteDelta = Math.Max(m_BlackDelta + m_MinRangeSize, Math.Min(1.0f, newWhite));
}
else if (m_DragMode == DraggingMode.BLACK)
{
float newBlack = (float)(e.Location.X - m_TotalSpace) / (float)m_RegionWidth;
m_BlackDelta = Math.Min(m_WhiteDelta - m_MinRangeSize, Math.Max(0.0f, newBlack));
}
OnRangeUpdated(new RangeHistogramEventArgs(BlackPoint, WhitePoint));
if (m_DragMode != DraggingMode.NONE)
{
this.Invalidate();
this.Update();
}
m_mousePrev.X = e.X;
m_mousePrev.Y = e.Y;
}
void DragObjectsForNonRectilinearCase(Point delta, DraggingMode draggingMode)
{
if (draggingMode == DraggingMode.Incremental)
{
DragIncrementally(delta);
}
else if (EdgeRoutingMode == EdgeRoutingMode.Spline || EdgeRoutingMode == EdgeRoutingMode.SplineBundling)
{
DragWithSplinesOrBundles(delta);
}
else
{
DragWithStraightLines(delta);
}
}
/// <summary>
/// Default constructor
/// </summary>
public GraphEditorControl()
{
_nodes = new List<GraphNode>();
_lines = new List<GraphLine>();
_linkLines = new List<GraphLinkLine>();
_heldButton = MouseButtons.None;
_lastDragPoint = new PointF();
_draggingMode = DraggingMode.None;
_scrollPosition = new PointF();
_dirty = false;
_zoom = 1.0f;
_graphLock = new object();
MouseWheel += new MouseEventHandler(GraphEditorControl_MouseWheel);
InitializeComponent();
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
Controls.Add(vScrollBar);
Controls.Add(hScrollBar);
}
/// <summary>
/// Default constructor
/// </summary>
public GraphEditorControl()
{
_nodes = new List <GraphNode>();
_lines = new List <GraphLine>();
_linkLines = new List <GraphLinkLine>();
_heldButton = MouseButtons.None;
_lastDragPoint = new PointF();
_draggingMode = DraggingMode.None;
_scrollPosition = new PointF();
_dirty = false;
_zoom = 1.0f;
_graphLock = new object();
MouseWheel += new MouseEventHandler(GraphEditorControl_MouseWheel);
InitializeComponent();
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
Controls.Add(vScrollBar);
Controls.Add(hScrollBar);
}
/// <summary>
/// Default constructor
/// </summary>
public GraphEditorControl()
{
_nodes = new List <GraphNode>();
_lines = new List <GraphLine>();
_linkLines = new List <GraphLinkLine>();
_heldButton = MouseButtons.None;
_lastDragPoint = new PointF();
_draggingMode = DraggingMode.None;
_scrollPosition = new PointF();
_dirty = false;
_graphLock = new object();
using (Graphics g = CreateGraphics())
{
_xscale = g.DpiX / 96.0f;
_yscale = g.DpiY / 96.0f;
}
DocumentWidth = (int)(DEFAULT_DOCUMENT_WIDTH * _xscale);
DocumentHeight = (int)(DEFAULT_DOCUMENT_HEIGHT * _yscale);
MouseWheel += new MouseEventHandler(GraphEditorControl_MouseWheel);
InitializeComponent();
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
Controls.Add(vScrollBar);
Controls.Add(hScrollBar);
}
public DragObject SetDraggingMode(DraggingMode mode)
{
draggingMode = mode;
return(this);
}
/// <summary>
/// drags elements by the delta
/// </summary>
/// <param name="delta"></param>
/// <param name="draggingMode">describes the way we process the dragging </param>
/// <param name="lastMousePosition">the last position of the mouse pointer </param>
internal void Drag(Point delta, DraggingMode draggingMode, Point lastMousePosition) {
GraphBoundingBoxGetsExtended = false;
if (delta.X != 0 || delta.Y != 0) {
if (EditedEdge == null)
if (EdgeRoutingMode != EdgeRoutingMode.Rectilinear &&
EdgeRoutingMode != EdgeRoutingMode.RectilinearToCenter)
DragObjectsForNonRectilinearCase(delta, draggingMode);
else
DragObjectsForRectilinearCase(delta);
else {
DragEdgeEdit(lastMousePosition, delta);
UpdateGraphBoundingBoxWithCheck(EditedEdge);
}
}
}
/// <summary>
/// prepares for node dragging
/// </summary>
/// <param name="markedObjects">markedObjects will be dragged</param>
/// <param name="dragMode"> is shift is pressed then the mode changes </param>
/// <returns></returns>
internal void PrepareForObjectDragging(IEnumerable <GeometryObject> markedObjects, DraggingMode dragMode)
{
EditedEdge = null;
CalculateDragSets(markedObjects);
InsertToListAndSetTheBoxBefore(new ObjectDragUndoRedoAction(graph));
if (dragMode == DraggingMode.Incremental)
{
InitIncrementalDragger();
}
}
void DragObjectsForNonRectilinearCase(Point delta, DraggingMode draggingMode) {
if (draggingMode == DraggingMode.Incremental)
DragIncrementally(delta);
else if (EdgeRoutingMode == EdgeRoutingMode.Spline || EdgeRoutingMode == EdgeRoutingMode.SplineBundling)
DragWithSplinesOrBundles(delta);
else
DragWithStraightLines(delta);
}
/// <summary>
/// prepares for node dragging
/// </summary>
/// <param name="markedObjects">markedObjects will be dragged</param>
/// <param name="dragMode"> is shift is pressed then the mode changes </param>
/// <returns></returns>
internal void PrepareForObjectDragging(IEnumerable<GeometryObject> markedObjects, DraggingMode dragMode) {
EditedEdge = null;
CalculateDragSets(markedObjects);
InsertToListAndSetTheBoxBefore(new ObjectDragUndoRedoAction(graph));
if (dragMode == DraggingMode.Incremental)
InitIncrementalDragger();
}
private void GraphEditorClass_MouseDown(object sender, MouseEventArgs e)
{
PointF mousePos = ClientToDocumentPoint(new PointF(e.X, e.Y));
if (_heldButton == MouseButtons.None)
{
if ((e.Button == MouseButtons.Left) && (ModifierKeys != Keys.Control))
{
SelectObjectInternal(mousePos);
_lastDragPoint = mousePos;
_heldButton = e.Button;
_draggingMode = DraggingMode.MoveNode;
}
else if ((e.Button == MouseButtons.Middle) || ((e.Button == MouseButtons.Left) && (ModifierKeys == Keys.Control)))
{
IGraphObject s = SelectObjectInternal(mousePos);
if ((s != null) && (s is GraphNode))
{
_lastDragPoint = mousePos;
_heldButton = e.Button;
_draggingMode = DraggingMode.DrawLine;
}
else if (s == null)
{
_lastDragPoint = mousePos;
_heldButton = e.Button;
_draggingMode = DraggingMode.ScrollWindow;
this.Cursor = Cursors.SizeAll;
}
}
}
Focus();
}
private void RangeHistogram_MouseUp(object sender, MouseEventArgs e)
{
whiteToolTip.Hide(this);
blackToolTip.Hide(this);
m_DragMode = DraggingMode.NONE;
m_mousePrev.X = m_mousePrev.Y = -1;
}
// This handler tries to figure out which handle (white or black) you were trying to
// grab when you clicked.
private void RangeHistogram_MouseDown(object sender, MouseEventArgs e)
{
if(e.Button != MouseButtons.Left || !ValidRange)
return;
Rectangle rect = this.ClientRectangle;
rect.Inflate(-m_TotalSpace, -m_TotalSpace);
int whiteX = (int)(m_WhiteDelta * rect.Width);
int blackX = (int)(m_BlackDelta * rect.Width);
var whiteVec = new PointF(whiteX - e.Location.X, ClientRectangle.Height - e.Location.Y);
var blackVec = new PointF(blackX-e.Location.X, e.Location.Y);
float whitedist = (float)Math.Sqrt(whiteVec.X * whiteVec.X + whiteVec.Y * whiteVec.Y);
float blackdist = (float)Math.Sqrt(blackVec.X * blackVec.X + blackVec.Y * blackVec.Y);
System.Diagnostics.Trace.WriteLine(string.Format("white {0} black {1}", whitedist, blackdist));
if (whitedist < blackdist && whitedist < 18.0f)
m_DragMode = DraggingMode.WHITE;
else if (blackdist < whitedist && blackdist < 18.0f)
m_DragMode = DraggingMode.BLACK;
else if (e.Location.X > whiteX)
m_DragMode = DraggingMode.WHITE;
else if (e.Location.X < blackX)
m_DragMode = DraggingMode.BLACK;
if (m_DragMode == DraggingMode.WHITE)
{
float newWhite = (float)(e.Location.X - m_TotalSpace) / (float)m_RegionWidth;
m_WhiteDelta = Math.Max(m_BlackDelta + m_MinRangeSize, Math.Min(1.0f, newWhite));
}
else if (m_DragMode == DraggingMode.BLACK)
{
float newBlack = (float)(e.Location.X - m_TotalSpace) / (float)m_RegionWidth;
m_BlackDelta = Math.Min(m_WhiteDelta - m_MinRangeSize, Math.Max(0.0f, newBlack));
}
OnRangeUpdated(new RangeHistogramEventArgs(BlackPoint, WhitePoint));
if (m_DragMode != DraggingMode.NONE)
{
this.Invalidate();
this.Update();
}
m_mousePrev.X = e.X;
m_mousePrev.Y = e.Y;
}
private void GraphEditorClass_MouseUp(object sender, MouseEventArgs e)
{
if (_heldButton == e.Button)
{
_heldButton = MouseButtons.None;
PointF documentPoint = ClientToDocumentPoint(new PointF(e.X, e.Y));
switch (_draggingMode)
{
case DraggingMode.MoveNode:
UpdateSelectedObject(documentPoint);
break;
case DraggingMode.DrawLine:
GraphNode destShape = GetHitObjectInternal(documentPoint) as GraphNode;
if ((destShape != null) && (destShape != _selectedObject) && (_selectedObject is GraphNode))
{
AddLine(_selectedObject as GraphNode, destShape);
}
Invalidate();
break;
case DraggingMode.ScrollWindow:
Cursor = Cursors.Arrow;
break;
}
_draggingMode = DraggingMode.None;
}
}
