protected virtual void DrawSelection(Graphics g, Rectangle r, Color?c = null)
{
bool fakeNative = SelectionRenderStyle == DynamicTreeViewRenderStyle.Native && c != null;
if (SelectionRenderStyle == DynamicTreeViewRenderStyle.Native && c == null)
{
VisualStyleRenderer renderer = Focused ? ExplorerViewStyle.ItemSelect : ExplorerViewStyle.ItemSelectNoFocus;
renderer.DrawBackground(g, r);
}
if (c == null)
{
c = Focused ? FakeNativeTreeStyleRenderer.SelectionColor : FakeNativeTreeStyleRenderer.NoFocusSelectionColor;
}
if (SelectionRenderStyle == DynamicTreeViewRenderStyle.FakeNative || fakeNative)
{
FakeNativeTreeStyleRenderer.DrawSelection(g, r, c.Value);
}
else if (SelectionRenderStyle == DynamicTreeViewRenderStyle.Simple)
{
g.FillRectangle(new SolidBrush(FakeNativeTreeStyleRenderer.AlphaBlend(50, c.Value)), r);
g.DrawRectangle(new Pen(c.Value, 1.0f), r);
}
}
protected virtual void DrawHighlight(Graphics g, Rectangle r, Color?c = null)
{
bool fakeNative = SelectionRenderStyle == DynamicTreeViewRenderStyle.Native && c != null;
if (SelectionRenderStyle == DynamicTreeViewRenderStyle.Native && c == null)
{
VisualStyleRenderer renderer = ExplorerViewStyle.ItemHover;
renderer.DrawBackground(g, r);
}
if (c == null)
{
c = Color.FromArgb(100, FakeNativeTreeStyleRenderer.SelectionColor);
}
else
{
c = FakeNativeTreeStyleRenderer.AlphaBlend(100, c.Value);
}
if (SelectionRenderStyle == DynamicTreeViewRenderStyle.FakeNative || fakeNative)
{
FakeNativeTreeStyleRenderer.DrawSelection(g, r, c.Value);
}
else if (SelectionRenderStyle == DynamicTreeViewRenderStyle.Simple)
{
g.FillRectangle(new SolidBrush(FakeNativeTreeStyleRenderer.AlphaBlend(50, c.Value)), r);
g.DrawRectangle(new Pen(c.Value, 1.0f), r);
}
}
protected virtual void DrawArrow(Graphics g, Rectangle r, bool expanded, bool highlighted)
{
VisualStyleRenderer renderer = null;
if (ArrowRenderStyle == DynamicTreeViewRenderStyle.Native)
{
if (highlighted)
{
renderer = expanded ? ExplorerViewStyle.OpenedHover : ExplorerViewStyle.ClosedHover;
}
else
{
renderer = expanded ? ExplorerViewStyle.Opened : ExplorerViewStyle.Closed;
}
}
else if (ArrowRenderStyle == DynamicTreeViewRenderStyle.Simple)
{
renderer = new VisualStyleRenderer(expanded ? VisualStyleElement.TreeView.Glyph.Opened : VisualStyleElement.TreeView.Glyph.Closed);
}
if (renderer != null)
{
renderer.DrawBackground(g, r);
}
else
{
FakeNativeTreeStyleRenderer.DrawArrow(g, r, expanded, highlighted);
}
}
