protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
PaintBack(e);
Rectangle upperButton = RectUpperButton();
Rectangle lowerButton = RectLowerButton();
upperButtonPainter.Paint(e.Graphics, upperButton, upperButtonState, "", null, Font, null);
lowerButtonPainter.Paint(e.Graphics, lowerButton, lowerButtonState, "", null, Font, null);
if (currentThumbPosition.Height > 0)
{
GetThumbPainter().Paint(e.Graphics, currentThumbPosition, thumbState, "", null, Font, null);
}
}
public override void Paint(Graphics g, Rectangle position, Painter.State buttonState, string text, Image buttonImage, Font textFont, Rectangle?referencePosition)
{
subPainter.Paint(g, position, buttonState, "", buttonImage, textFont, referencePosition);
}
public override void Paint(Graphics g, Rectangle position, Painter.State buttonState, string text, Image buttonImage, Font textFont, Rectangle?referencePosition)
{
Rectangle layoutArea = Rectangle.FromLTRB(position.X + paddingLeft,
position.Y + paddingTop,
position.Right - paddingRight,
position.Bottom - paddingBottom);
if (layoutArea.Width <= 0 || layoutArea.Height <= 0)
{
return;
}
double layoutRatio = (double)layoutArea.Width / (double)layoutArea.Height;
Rectangle targetRect;
//maximize width
if (layoutRatio < targetRatio)
{
int targetWidth = layoutArea.Width;
if (maxWidth > 0)
{
targetWidth = Math.Min(layoutArea.Width, maxWidth);
}
int targetHeight = (int)((double)targetWidth / targetRatio);
targetRect = new Rectangle(layoutArea.X, layoutArea.Y, targetWidth, targetHeight);
}
else
{
//maximize height
int targetWidth = (int)((double)layoutArea.Height * targetRatio);
int targetHeight = layoutArea.Height;
if (maxWidth > 0 && targetWidth > maxWidth)
{
targetWidth = maxWidth;
targetHeight = (int)((double)targetHeight / targetRatio);
}
targetRect = new Rectangle(layoutArea.X, layoutArea.Y, targetWidth, targetHeight);
}
if (vAlign == Alignment.Far)
{
targetRect = new Rectangle(targetRect.X, layoutArea.Bottom - targetRect.Height, targetRect.Width, targetRect.Height);
}
else if (vAlign == Alignment.Center)
{
targetRect = new Rectangle(targetRect.X, layoutArea.Top + (int)((double)layoutArea.Height / 2.0d - (double)targetRect.Height / 2.0d),
targetRect.Width, targetRect.Height);
}
if (hAlign == Alignment.Far)
{
targetRect = new Rectangle(layoutArea.Right - targetRect.Width, targetRect.Y, targetRect.Width, targetRect.Height);
}
else if (hAlign == Alignment.Center)
{
targetRect = new Rectangle(targetRect.X + (int)((double)layoutArea.Width / 2.0d - (double)targetRect.Width / 2.0d),
targetRect.Y, targetRect.Width, targetRect.Height);
}
subPainter.Paint(g, targetRect, buttonState, text, buttonImage, textFont, referencePosition);
}