/// <summary>
/// Forces all images sizes to be refreshed from the respective providers.
/// </summary>
protected void RefreshItemImages()
{
Size imageSize = ShengToolStripIconImageProvider.GetIconSize(ImageSize);
ImageScalingSize = imageSize;
bool changesMade = false;
IShengToolStripImageProvider imageProvider = null;
foreach (ToolStripItem item in Items)
{
if (item.Size != imageSize)
{
imageProvider = null;
// If an image provider was registered with the toolstrip then...
if (ContainsImage(item))
{
if (IsImageSupported(item, ImageSize))
item.Image = GetImage(item, ImageSize);
else if (UseUnknownImageSizeIcon && IsImageSupported(ImageSize))
item.Image = GetImage(ImageSize);
changesMade = true;
}
else if (item is IShengToolStripImageProvider)
{
imageProvider = item as IShengToolStripImageProvider;
}
else if (item.Tag is IShengToolStripImageProvider)
{
imageProvider = item.Tag as IShengToolStripImageProvider;
}
// If an alternative image provider was found, attempt to use that.
if (!changesMade && imageProvider != null)
{
if (imageProvider.IsImageSupported(ImageSize))
{
item.Image = imageProvider.GetImage(ImageSize);
changesMade = true;
}
}
// Were changes made?
if (changesMade)
{
// Automatically adjust the image scaling mode.
if (item.Image != null && item.Image.Size == imageSize)
item.ImageScaling = ToolStripItemImageScaling.None;
else
item.ImageScaling = ToolStripItemImageScaling.SizeToFit;
}
}
}
}
/// <summary>
/// Fetches an image of the requested size.
/// </summary>
/// <param name="size">Size of image to obtain.</param>
/// <returns>If supported, returns requested image. A value of null
/// indicates that the requested size is not supported.</returns>
public virtual Image GetImage(ShengToolStripImageSize size)
{
if (DefaultImageProvider == null)
throw new NullReferenceException();
if (DefaultImageProvider == this)
{
Size iconSize = ShengToolStripIconImageProvider.GetIconSize(size);
Bitmap icon = new Bitmap(16, 16);
Icon iconResult = new Icon(DrawingTool.ImageToIcon(icon), iconSize);
return iconResult.ToBitmap();
}
return DefaultImageProvider.GetImage(size);
}
/// <summary>
/// Fetches an image of the requested size.
/// </summary>
/// <param name="size">Size of image to obtain.</param>
/// <returns>If supported, returns requested image. A value of null
/// indicates that the requested size is not supported.</returns>
public Image GetImage(ShengToolStripImageSize size)
{
Icon desiredSize = new Icon(SourceIcon, ShengToolStripIconImageProvider.GetIconSize(size));
return desiredSize.ToBitmap();
}
