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);
}
public ElementAdorner(_Control adornedElement)
: base(adornedElement)
{
_element = adornedElement;
}
private void OnAddLineCompeledAction(_Control control)
{
DesginCanvas.AddNewControl(control);
}
private void OnAddElementCompletedAction(_Control control)
{
DesginCanvas.AddNewControl(control);
}
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;
}
}
}
}
public AutoAlignLine MeasureAlign(_Control source, _Control target)
{
if (Math.Abs(source.Left + source.Width / 2d - target.Left - target.Width / 2d) <= AUTO_ALIGN_SIZE)
{
return new AutoAlignLine(
target.Left + target.Width / 2d,
target.Top - target.Height * 0.1d,
target.Left + target.Width / 2d,
target.Top + target.Height * 1.1d,
AlignType.HorizontalCenter);
}
else if (Math.Abs(source.Top + source.Height / 2d - target.Top - target.Height / 2d) <= AUTO_ALIGN_SIZE)
{
return new AutoAlignLine(
target.Left - target.Width * 0.1,
target.Top + target.Height / 2d,
target.Left + target.Width * 1.1,
target.Top + target.Height / 2d,
AlignType.VerticalCenter);
}
else if (Math.Abs(source.Top - target.Top) <= AUTO_ALIGN_SIZE)
{
return new AutoAlignLine(
target.Left - target.Width * 0.1,
target.Top,
target.Left + target.Width * 1.1,
target.Top,
AlignType.Top);
}
else if (Math.Abs(source.Left - target.Left) <= AUTO_ALIGN_SIZE)
{
return new AutoAlignLine(
target.Left,
target.Top - target.Height * 0.1d,
target.Left,
target.Top + target.Height * 1.1,
AlignType.Left);
}
else if (Math.Abs(source.Left + source.Width - target.Left - target.Width) <= AUTO_ALIGN_SIZE)
{
return new AutoAlignLine(
target.Left + target.Width,
target.Top - target.Height * 0.1d,
target.Left + target.Width,
target.Top + target.Height * 1.1,
AlignType.Right);
}
else if (Math.Abs(source.Top + source.Height - target.Top - target.Height) <= AUTO_ALIGN_SIZE)
{
return new AutoAlignLine(
target.Left - target.Width * 0.1,
target.Top + target.Height,
target.Left + target.Width * 1.1,
target.Top + target.Height,
AlignType.Bottom);
}
else
{
return AutoAlignLine.Empty;
}
}
public void BeginAdd(_Control addBaseControl)
{
_addBaseControl = addBaseControl;
this.Visibility = Visibility.Visible;
}