public override void Render(RenderingBuffer buffer)
{
Attr attr = Colors.Blend(Color.Black, Color.DarkGreen);
Attr inactiveAttr = Colors.Blend(Color.DarkGray, Color.DarkGreen);
// Transparent background for borders
buffer.SetOpacityRect(0, 0, ActualWidth, ActualHeight, 3);
buffer.FillRectangle(0, 0, ActualWidth, ActualHeight, ' ', attr);
// Transparent child content part
if (ActualWidth > 2 && ActualHeight > 3)
{
buffer.SetOpacityRect(1, 3, ActualWidth - 2, ActualHeight - 4, 2);
}
renderBorderSafe(buffer, 0, 2, Math.Max(getTabHeaderWidth( ) - 1, ActualWidth - 1), ActualHeight - 1);
// Start to render header
buffer.FillRectangle(0, 0, ActualWidth, Math.Min(2, ActualHeight), ' ', attr);
int x = 0;
// Render tabs before active tab
for (int tab = 0; tab < tabDefinitions.Count; x += TabDefinitions[tab++].Title.Length + 3)
{
var tabDefinition = TabDefinitions[tab];
if (tab <= activeTabIndex)
{
buffer.SetPixelSafe(x, 0, UnicodeTable.SingleFrameTopLeftCorner);
buffer.SetPixelSafe(x, 1, UnicodeTable.SingleFrameVertical);
}
if (tab == activeTabIndex)
{
buffer.SetPixelSafe(x, 2,
activeTabIndex == 0 ? UnicodeTable.SingleFrameVertical : UnicodeTable.SingleFrameBottomRightCorner);
}
for (int i = 0; i < tabDefinition.Title.Length + 2; i++)
{
buffer.SetPixelSafe(x + 1 + i, 0, UnicodeTable.SingleFrameHorizontal);
if (tab == activeTabIndex)
{
buffer.SetPixelSafe(x + 1 + i, 2, ' ');
}
}
buffer.RenderStringSafe(" " + tabDefinition.Title + " ", x + 1, 1,
activeTabIndex == tab ? attr : inactiveAttr);
if (tab >= activeTabIndex)
{
buffer.SetPixelSafe(x + tabDefinition.Title.Length + 3, 0, UnicodeTable.SingleFrameTopRightCorner);
buffer.SetPixelSafe(x + tabDefinition.Title.Length + 3, 1, UnicodeTable.SingleFrameVertical);
}
if (tab == activeTabIndex)
{
buffer.SetPixelSafe(x + tabDefinition.Title.Length + 3, 2,
activeTabIndex == tabDefinitions.Count - 1 && ActualWidth - 1 == x + tabDefinition.Title.Length + 3
? UnicodeTable.SingleFrameVertical
: UnicodeTable.SingleFrameBottomLeftCorner);
}
}
}
