private GraphicsPath GetTabOutlineDocument(Tab tab, bool rtlTransform, bool toScreen, bool full)
{
const int curveSize = 6;
GraphicsPath.Reset();
Rectangle rect = this.GetTabRectangle(Tabs.IndexOf(tab));
if (rtlTransform)
rect = DrawHelper.RtlTransform(this, rect);
if (toScreen)
rect = RectangleToScreen(rect);
// Draws the full angle piece for active content (or first tab)
if (tab.Content == DockPane.ActiveContent || full || Tabs.IndexOf(tab) == this.FirstDisplayingTab)
{
if (RightToLeft == RightToLeft.Yes)
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
// For some reason the next line draws a line that is not hidden like it is when drawing the tab strip on top.
// It is not needed so it has been commented out.
//GraphicsPath.AddLine(rect.Right, rect.FixedY, rect.Right + rect.Height / 2, rect.FixedY);
GraphicsPath.AddLine(rect.Right + rect.Height / 2, rect.Top, rect.Right - rect.Height / 2 + curveSize / 2, rect.Bottom - curveSize / 2);
}
else
{
GraphicsPath.AddLine(rect.Right, rect.Bottom, rect.Right + rect.Height / 2, rect.Bottom);
GraphicsPath.AddLine(rect.Right + rect.Height / 2, rect.Bottom, rect.Right - rect.Height / 2 + curveSize / 2, rect.Top + curveSize / 2);
}
}
else
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
// For some reason the next line draws a line that is not hidden like it is when drawing the tab strip on top.
// It is not needed so it has been commented out.
//GraphicsPath.AddLine(rect.Left, rect.Top, rect.Left - rect.Height / 2, rect.Top);
GraphicsPath.AddLine(rect.Left - rect.Height / 2, rect.Top, rect.Left + rect.Height / 2 - curveSize / 2, rect.Bottom - curveSize / 2);
}
else
{
GraphicsPath.AddLine(rect.Left, rect.Bottom, rect.Left - rect.Height / 2, rect.Bottom);
GraphicsPath.AddLine(rect.Left - rect.Height / 2, rect.Bottom, rect.Left + rect.Height / 2 - curveSize / 2, rect.Top + curveSize / 2);
}
}
}
// Draws the partial angle for non-active content
else
{
if (RightToLeft == RightToLeft.Yes)
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
GraphicsPath.AddLine(rect.Right, rect.Top, rect.Right, rect.Top + rect.Height / 2);
GraphicsPath.AddLine(rect.Right, rect.Top + rect.Height / 2, rect.Right - rect.Height / 2 + curveSize / 2, rect.Bottom - curveSize / 2);
}
else
{
GraphicsPath.AddLine(rect.Right, rect.Bottom, rect.Right, rect.Bottom - rect.Height / 2);
GraphicsPath.AddLine(rect.Right, rect.Bottom - rect.Height / 2, rect.Right - rect.Height / 2 + curveSize / 2, rect.Top + curveSize / 2);
}
}
else
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
GraphicsPath.AddLine(rect.Left, rect.Top, rect.Left, rect.Top + rect.Height / 2);
GraphicsPath.AddLine(rect.Left, rect.Top + rect.Height / 2, rect.Left + rect.Height / 2 - curveSize / 2, rect.Bottom - curveSize / 2);
}
else
{
GraphicsPath.AddLine(rect.Left, rect.Bottom, rect.Left, rect.Bottom - rect.Height / 2);
GraphicsPath.AddLine(rect.Left, rect.Bottom - rect.Height / 2, rect.Left + rect.Height / 2 - curveSize / 2, rect.Top + curveSize / 2);
}
}
}
if (RightToLeft == RightToLeft.Yes)
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
// Draws the bottom horizontal line (short side)
GraphicsPath.AddLine(rect.Right - rect.Height / 2 - curveSize / 2, rect.Bottom, rect.Left + curveSize / 2, rect.Bottom);
// Drawing the rounded corner is not necessary. The path is automatically connected
//GraphicsPath.AddArc(new Rectangle(rect.Left, rect.Top, curveSize, curveSize), 180, 90);
}
else
{
// Draws the bottom horizontal line (short side)
GraphicsPath.AddLine(rect.Right - rect.Height / 2 - curveSize / 2, rect.Top, rect.Left + curveSize / 2, rect.Top);
GraphicsPath.AddArc(new Rectangle(rect.Left, rect.Top, curveSize, curveSize), 180, 90);
}
}
else
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
// Draws the bottom horizontal line (short side)
GraphicsPath.AddLine(rect.Left + rect.Height / 2 + curveSize / 2, rect.Bottom, rect.Right - curveSize / 2, rect.Bottom);
// Drawing the rounded corner is not necessary. The path is automatically connected
//GraphicsPath.AddArc(new Rectangle(rect.Right - curveSize, rect.FixedY, curveSize, curveSize), 90, -90);
}
else
{
// Draws the top horizontal line (short side)
GraphicsPath.AddLine(rect.Left + rect.Height / 2 + curveSize / 2, rect.Top, rect.Right - curveSize / 2, rect.Top);
// Draws the rounded corner oppposite the angled side
GraphicsPath.AddArc(new Rectangle(rect.Right - curveSize, rect.Top, curveSize, curveSize), -90, 90);
}
}
if (Tabs.IndexOf(tab) != this.EndDisplayingTab &&
(Tabs.IndexOf(tab) != Tabs.Count - 1 && Tabs[Tabs.IndexOf(tab) + 1].Content == DockPane.ActiveContent)
&& !full)
{
if (RightToLeft == RightToLeft.Yes)
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
GraphicsPath.AddLine(rect.Left, rect.Bottom - curveSize / 2, rect.Left, rect.Bottom - rect.Height / 2);
GraphicsPath.AddLine(rect.Left, rect.Bottom - rect.Height / 2, rect.Left + rect.Height / 2, rect.Top);
}
else
{
GraphicsPath.AddLine(rect.Left, rect.Top + curveSize / 2, rect.Left, rect.Top + rect.Height / 2);
GraphicsPath.AddLine(rect.Left, rect.Top + rect.Height / 2, rect.Left + rect.Height / 2, rect.Bottom);
}
}
else
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
{
GraphicsPath.AddLine(rect.Right, rect.Bottom - curveSize / 2, rect.Right, rect.Bottom - rect.Height / 2);
GraphicsPath.AddLine(rect.Right, rect.Bottom - rect.Height / 2, rect.Right - rect.Height / 2, rect.Top);
}
else
{
GraphicsPath.AddLine(rect.Right, rect.Top + curveSize / 2, rect.Right, rect.Top + rect.Height / 2);
GraphicsPath.AddLine(rect.Right, rect.Top + rect.Height / 2, rect.Right - rect.Height / 2, rect.Bottom);
}
}
}
else
{
// Draw the vertical line opposite the angled side
if (RightToLeft == RightToLeft.Yes)
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
GraphicsPath.AddLine(rect.Left, rect.Bottom - curveSize / 2, rect.Left, rect.Top);
else
GraphicsPath.AddLine(rect.Left, rect.Top + curveSize / 2, rect.Left, rect.Bottom);
}
else
{
if (DockPane.DockPanel.DocumentTabStripLocation == DocumentTabStripLocation.Bottom)
GraphicsPath.AddLine(rect.Right, rect.Bottom - curveSize / 2, rect.Right, rect.Top);
else
GraphicsPath.AddLine(rect.Right, rect.Top + curveSize / 2, rect.Right, rect.Bottom);
}
}
return GraphicsPath;
}
