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 );
}
}
}