/// <summary>
/// Draw a background for an expert style button with pressed effect.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Rectangle to draw.</param>
/// <param name="backColor1">First color.</param>
/// <param name="backColor2">Second color.</param>
/// <param name="orientation">Drawing orientation.</param>
/// <param name="path">Clipping path.</param>
/// <param name="memento">Cache used for drawing.</param>
public static IDisposable DrawBackExpertPressed(RenderContext context,
Rectangle rect,
Color backColor1,
Color backColor2,
VisualOrientation orientation,
GraphicsPath path,
IDisposable memento)
{
using (Clipping clip = new Clipping(context.Graphics, path))
{
// Cannot draw a zero length rectangle
if ((rect.Width > 0) && (rect.Height > 0))
{
bool generate = true;
MementoBackExpertShadow cache;
// Access a cache instance and decide if cache resources need generating
if (!(memento is MementoBackExpertShadow))
{
memento?.Dispose();
cache = new MementoBackExpertShadow(rect, backColor1, backColor2);
memento = cache;
}
else
{
cache = (MementoBackExpertShadow)memento;
generate = !cache.UseCachedValues(rect, backColor1, backColor2);
}
// Do we need to generate the contents of the cache?
if (generate)
{
rect.X -= 1;
rect.Y -= 1;
rect.Width += 2;
rect.Height += 2;
// Dispose of existing values
cache.Dispose();
cache.path1 = CreateBorderPath(rect, ITEM_CUT);
cache.path2 = CreateBorderPath(new Rectangle(rect.X + 1, rect.Y + 1, rect.Width - 2, rect.Height - 2), ITEM_CUT);
cache.path3 = CreateBorderPath(new Rectangle(rect.X + 2, rect.Y + 2, rect.Width - 4, rect.Height - 4), ITEM_CUT);
cache.brush1 = new SolidBrush(CommonHelper.MergeColors(backColor2, 0.4f, backColor1, 0.6f));
cache.brush2 = new SolidBrush(CommonHelper.MergeColors(backColor2, 0.2f, backColor1, 0.8f));
cache.brush3 = new SolidBrush(backColor1);
}
using (AntiAlias aa = new AntiAlias(context.Graphics))
{
context.Graphics.FillRectangle(cache.brush3, rect);
context.Graphics.FillPath(cache.brush1, cache.path1);
context.Graphics.FillPath(cache.brush2, cache.path2);
context.Graphics.FillPath(cache.brush3, cache.path3);
}
}
return(memento);
}
}
/// <summary>
/// Draw a background for an expert style button with pressed effect.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Rectangle to draw.</param>
/// <param name="backColor1">First color.</param>
/// <param name="backColor2">Second color.</param>
/// <param name="orientation">Drawing orientation.</param>
/// <param name="path">Clipping path.</param>
/// <param name="memento">Cache used for drawing.</param>
public static IDisposable DrawBackExpertPressed(RenderContext context,
Rectangle rect,
Color backColor1,
Color backColor2,
VisualOrientation orientation,
GraphicsPath path,
IDisposable memento)
{
using (Clipping clip = new Clipping(context.Graphics, path))
{
// Cannot draw a zero length rectangle
if ((rect.Width > 0) && (rect.Height > 0))
{
bool generate = true;
MementoBackExpertShadow cache;
// Access a cache instance and decide if cache resources need generating
if ((memento == null) || !(memento is MementoBackExpertShadow))
{
if (memento != null)
memento.Dispose();
cache = new MementoBackExpertShadow(rect, backColor1, backColor2);
memento = cache;
}
else
{
cache = (MementoBackExpertShadow)memento;
generate = !cache.UseCachedValues(rect, backColor1, backColor2);
}
// Do we need to generate the contents of the cache?
if (generate)
{
rect.X -= 1;
rect.Y -= 1;
rect.Width += 2;
rect.Height += 2;
// Dispose of existing values
cache.Dispose();
cache.path1 = CreateBorderPath(rect, _itemCut);
cache.path2 = CreateBorderPath(new Rectangle(rect.X + 1, rect.Y + 1, rect.Width - 2, rect.Height - 2), _itemCut);
cache.path3 = CreateBorderPath(new Rectangle(rect.X + 2, rect.Y + 2, rect.Width - 4, rect.Height - 4), _itemCut);
cache.brush1 = new SolidBrush(CommonHelper.MergeColors(backColor2, 0.4f, backColor1, 0.6f));
cache.brush2 = new SolidBrush(CommonHelper.MergeColors(backColor2, 0.2f, backColor1, 0.8f));
cache.brush3 = new SolidBrush(backColor1);
}
using (AntiAlias aa = new AntiAlias(context.Graphics))
{
context.Graphics.FillRectangle(cache.brush3, rect);
context.Graphics.FillPath(cache.brush1, cache.path1);
context.Graphics.FillPath(cache.brush2, cache.path2);
context.Graphics.FillPath(cache.brush3, cache.path3);
}
}
return memento;
}
}