private void OnElementMoving(_Control element, Rect rect)
{
if (!DesginCanvas.IsAutoAlign)
{
return;
}
List <AutoAlignLine> alignLines = new List <AutoAlignLine>();
foreach (UIElement ui in DesginCanvas.Children)
{
if (DesginCanvas.SelectedControls.Contains(ui as _Control))
{
continue;
}
if (ui is _Control && !(ui is _Line))
{
AutoAlignLine alignLine = AlignCanvas.MeasureAlign(element, ui as _Control);
if (!alignLine.IsEmpty)
{
alignLines.Add(alignLine);
}
}
}
AlignCanvas.DrawAlignLines(alignLines);
}
private Point OnLineMoved(_Line source, Point point1, Point point2)
{
if (!DesginCanvas.IsAutoAlign)
{
return(point1);
}
Point a = new Point(point1.X + source.Left, point1.Y + source.Top);
Point b = new Point(point2.X + source.Left, point2.Y + source.Top);
AlignCanvas.Clear();
Point point = new Point(double.NaN, double.NaN);
foreach (UIElement ui in DesginCanvas.Children)
{
if (DesginCanvas.SelectedControls.Contains(ui as _Control))
{
continue;
}
if (ui is _Line)
{
_Line line = ui as _Line;
point = AlignCanvas.MeasurePoint(a, b, new Point(line.Line.X1 + line.Left, line.Line.Y1 + line.Top), new Point(line.Line.X2 + line.Left, line.Line.Y2 + line.Top));
if (!double.IsNaN(point.X))
{
return(new Point(point.X - source.Left, point.Y - source.Top));
}
}
else if (ui is _Rectangle)
{
_Control element = ui as _Control;
Point a1 = new Point(element.Left, element.Top);
Point b1 = new Point(element.Left + element.Width, element.Top);
Point c1 = new Point(element.Left + element.Width, element.Top + element.Height);
Point d1 = new Point(element.Left, element.Top + element.Height);
point = AlignCanvas.MeasurePoint(a, b, a1, b1);
if (!double.IsNaN(point.X))
{
return(new Point(point.X - source.Left, point.Y - source.Top));
}
else if (!double.IsNaN((point = AlignCanvas.MeasurePoint(a, b, b1, c1)).X))
{
return(new Point(point.X - source.Left, point.Y - source.Top));
}
else if (!double.IsNaN((point = AlignCanvas.MeasurePoint(a, b, c1, d1)).X))
{
return(new Point(point.X - source.Left, point.Y - source.Top));
}
else if (!double.IsNaN((point = AlignCanvas.MeasurePoint(a, b, d1, a1)).X))
{
return(new Point(point.X - source.Left, point.Y - source.Top));
}
}
}
return(AlignCanvas.Orthogonal(point1, point2));
}
private void OnLinePoint1Adding(_Line source, Point a)
{
if (!DesginCanvas.IsAutoAlign)
{
return;
}
List <Point> points = new List <Point>();
foreach (UIElement ui in DesginCanvas.Children)
{
if (DesginCanvas.SelectedControls.Contains(ui as _Control))
{
continue;
}
if (ui is _Line)
{
_Line line = ui as _Line;
Point point = AlignCanvas.MeasurePoint(a, new Point(line.Line.X1 + line.Left, line.Line.Y1 + line.Top), new Point(line.Line.X2 + line.Left, line.Line.Y2 + line.Top));
if (!double.IsNaN(point.X))
{
points.Add(point);
}
}
else if (ui is _Rectangle)
{
_Control element = ui as _Control;
Point a1 = new Point(element.Left, element.Top);
Point b1 = new Point(element.Left + element.Width, element.Top);
Point c1 = new Point(element.Left + element.Width, element.Top + element.Height);
Point d1 = new Point(element.Left, element.Top + element.Height);
Point point = AlignCanvas.MeasurePoint(a, a1, b1);
if (!double.IsNaN(point.X))
{
points.Add(point);
}
else if (!double.IsNaN((point = AlignCanvas.MeasurePoint(a, b1, c1)).X))
{
points.Add(point);
}
else if (!double.IsNaN((point = AlignCanvas.MeasurePoint(a, c1, d1)).X))
{
points.Add(point);
}
else if (!double.IsNaN((point = AlignCanvas.MeasurePoint(a, d1, a1)).X))
{
points.Add(point);
}
}
}
AlignCanvas.DrawAlignPoints(points);
}
private void OnElementMoved(_Control element, Rect rect)
{
AlignCanvas.Clear();
if (!DesginCanvas.IsAutoAlign)
{
return;
}
foreach (UIElement ui in DesginCanvas.Children)
{
if (DesginCanvas.SelectedControls.Contains(ui as _Control))
{
continue;
}
if (ui is _Control)
{
AutoAlignLine alignLine = AlignCanvas.MeasureAlign(element, ui as _Control);
if (!alignLine.IsEmpty)
{
switch (alignLine.AlignType)
{
case AlignType.Left:
element.Left = alignLine.X1;
break;
case AlignType.Top:
element.Top = alignLine.Y1;
break;
case AlignType.Right:
element.Left = alignLine.X1 - element.Width;
break;
case AlignType.Bottom:
element.Top = alignLine.Y1 - element.Height;
break;
case AlignType.HorizontalCenter:
element.Left = alignLine.X1 - element.Width / 2d;
break;
case AlignType.VerticalCenter:
element.Top = alignLine.Y1 - element.Height / 2d;
break;
}
break;
}
}
}
}
