/// <summary>
/// Function called when dragged window is moved over already docked window</summary>
/// <param name="sender">Dockable window being dragged</param>
/// <param name="e">Drag and drop arguments when window is dropped to be docked to dockpanel</param>
public void DockDragOver(object sender, DockDragDropEventArgs e)
{
Point pos = e.MouseEventArgs.GetPosition(this);
bool b = m_dockTabIcon.HitTest(pos);
if (b && !m_dockTabIcon.Highlight)
{
m_dockTabIcon.Highlight = b;
DockIconsLayer.RemoveChild(m_dockPreviewShape);
m_dockPreviewShape = null;
Window owner = Window.GetWindow(this);
Rectangle rect = new Rectangle();
rect.Fill = Brushes.RoyalBlue;
rect.Opacity = 0.3;
m_dockPreviewShape = rect;
double space = 2;
Point p = PointFromScreen(PointToScreen(new Point(space, space)));
Canvas c = new Canvas();
c.SnapsToDevicePixels = true;
c.Width = DockedContent.ActualWidth;
c.Height = DockedContent.ActualHeight;
Canvas.SetLeft(c, p.X);
Canvas.SetTop(c, p.Y);
m_dockPreviewShape.Width = DockedContent.ActualWidth - space * 2;
m_dockPreviewShape.Height = DockedContent.ActualHeight - 20 - space * 2;
Canvas.SetLeft(m_dockPreviewShape, 0);
Canvas.SetTop(m_dockPreviewShape, 0);
c.Children.Add(m_dockPreviewShape);
rect = new Rectangle();
rect.Fill = Brushes.RoyalBlue;
rect.Opacity = 0.3;
rect.Width = Math.Min(DockedContent.ActualWidth / 4, 50);
rect.Height = 20;
Canvas.SetLeft(rect, 0);
Canvas.SetTop(rect, DockedContent.ActualHeight - 20 - space * 2);
c.Children.Add(rect);
m_dockPreviewShape = c;
DockIconsLayer.InsertChild(0, m_dockPreviewShape);
}
else if (!b)
{
if (m_dockPreviewShape != null)
{
DockIconsLayer.RemoveChild(m_dockPreviewShape);
m_dockPreviewShape = null;
}
m_dockTabIcon.Highlight = false;
}
}
/// <summary>
/// Function called when dragged window is moved over already docked window</summary>
/// <param name="sender">Dockable window being dragged</param>
/// <param name="e">Drag and drop arguments when window is dropped to be docked to dockpanel</param>
public void DockDragOver(object sender, DockDragDropEventArgs e)
{
DockTo?previousDockPreview = m_dockPreview;
m_dockPreview = null;
Point pos = e.MouseEventArgs.GetPosition(Root);
m_dockLeftIcon.Highlight = m_dockLeftIcon.HitTest(pos);
m_dockRightIcon.Highlight = m_dockRightIcon.HitTest(pos);
m_dockTopIcon.Highlight = m_dockTopIcon.HitTest(pos);
m_dockBottomIcon.Highlight = m_dockBottomIcon.HitTest(pos);
m_dockTabIcon.Highlight = m_dockTabIcon.HitTest(pos);
m_dockPreview = m_dockLeftIcon.Highlight ? DockTo.Left : m_dockPreview;
m_dockPreview = m_dockRightIcon.Highlight ? DockTo.Right : m_dockPreview;
m_dockPreview = m_dockTopIcon.Highlight ? DockTo.Top : m_dockPreview;
m_dockPreview = m_dockBottomIcon.Highlight ? DockTo.Bottom : m_dockPreview;
m_dockPreview = m_dockTabIcon.Highlight ? DockTo.Center : m_dockPreview;
if (m_dockPreview != null)
{
if (previousDockPreview != m_dockPreview)
{
Root.DockIconsLayer.RemoveChild(m_dockPreviewShape);
m_dockPreviewShape = null;
Window owner = Window.GetWindow(this);
Rectangle rect = new Rectangle();
rect.Fill = Brushes.RoyalBlue;
rect.Opacity = 0.3;
FrameworkElement fe = rect;
double space = 2;
Point p = Root.PointFromScreen(PointToScreen(new Point(space, space)));
ContentSettings contentSettings = (e.Content is TabLayout) ? ((TabLayout)e.Content).Children[0].Settings : ((DockContent)e.Content).Settings;
double width = Math.Max(Math.Min(contentSettings.Size.Width, ActualWidth / 2), ActualWidth / 5);
double height = Math.Max(Math.Min(contentSettings.Size.Height, ActualHeight / 2), ActualHeight / 5);
double ratioWidth = width / ActualWidth;
double ratioHeight = height / ActualHeight;
switch (m_dockPreview)
{
case DockTo.Left:
fe.Width = ActualWidth * ratioWidth - space * 2;
fe.Height = ActualHeight - space * 2;
Canvas.SetLeft(fe, p.X);
Canvas.SetTop(fe, p.Y);
break;
case DockTo.Right:
fe.Width = ActualWidth * ratioWidth - space * 2;
fe.Height = ActualHeight - space * 2;
Canvas.SetLeft(fe, p.X + ActualWidth * (1 - ratioWidth));
Canvas.SetTop(fe, p.Y);
break;
case DockTo.Top:
fe.Width = ActualWidth - space * 2;
fe.Height = ActualHeight * ratioHeight - space * 2;
Canvas.SetLeft(fe, p.X);
Canvas.SetTop(fe, p.Y);
break;
case DockTo.Bottom:
fe.Width = ActualWidth - space * 2;
fe.Height = ActualHeight * ratioHeight - space * 2;
Canvas.SetLeft(fe, p.X);
Canvas.SetTop(fe, p.Y + ActualHeight * (1 - ratioHeight));
break;
case DockTo.Center:
Canvas c = new Canvas();
c.SnapsToDevicePixels = true;
c.Width = ActualWidth;
c.Height = ActualHeight;
Canvas.SetLeft(c, p.X);
Canvas.SetTop(c, p.Y);
fe.Width = ActualWidth - space * 2;
fe.Height = ActualHeight - 20 - space * 2;
Canvas.SetLeft(fe, 0);
Canvas.SetTop(fe, 0);
c.Children.Add(fe);
rect = new Rectangle();
rect.Fill = Brushes.RoyalBlue;
rect.Opacity = 0.3;
rect.Width = Math.Min(ActualWidth / 4, 50);
rect.Height = 20;
Canvas.SetLeft(rect, 0);
Canvas.SetTop(rect, ActualHeight - 20 - space * 2);
c.Children.Add(rect);
fe = c;
break;
}
Root.DockIconsLayer.InsertChild(0, fe);
m_dockPreviewShape = fe;
}
}
else
{
if (m_dockPreviewShape != null)
{
Root.DockIconsLayer.RemoveChild(m_dockPreviewShape);
m_dockPreviewShape = null;
}
}
}