/// <summary>Sets up the current batch based on the isolation settings requested by a property.</summary>
/// <param name="property">The displayable property which wants the batch.</param>
/// <param name="fontTexture">The font texture to use with this batch.</param>
public void SetupBatch(DisplayableProperty property, TextureAtlas graphics, TextureAtlas font)
{
if (property.Isolated)
{
if (property.GotBatchAlready)
{
// The property already got a batch on this layout - it doesn't need another.
return;
}
// Isolated properties always get a new batch every time.
CurrentBatch = UIBatchPool.Get(this);
if (CurrentBatch == null)
{
CurrentBatch = new UIBatch(this);
}
property.GotBatchAlready = true;
// And push it to the active stack:
AddBatch(CurrentBatch);
// Make sure it knows it's isolated:
CurrentBatch.IsIsolated(property);
}
else
{
if (CurrentBatch != null && !CurrentBatch.Isolated)
{
// Re-use existing batch?
if (font != null)
{
if (CurrentBatch.FontAtlas == null)
{
// Didn't have one assigned before. Assign now:
CurrentBatch.SetFontAtlas(font);
}
else if (font != CurrentBatch.FontAtlas)
{
// Font atlas changed. Can't share.
CurrentBatch = null;
}
}
if (graphics != null)
{
if (CurrentBatch.GraphicsAtlas == null)
{
// Didn't have one assigned before. Assign now:
CurrentBatch.SetGraphicsAtlas(graphics);
}
else if (graphics != CurrentBatch.GraphicsAtlas)
{
// Atlas changed. Can't share.
CurrentBatch = null;
}
}
if (CurrentBatch != null)
{
// Yep - reuse it.
return;
}
}
// Pull a batch from the pool and set it to currentbatch. May need to generate a new one.
CurrentBatch = UIBatchPool.Get(this);
if (CurrentBatch == null)
{
CurrentBatch = new UIBatch(this);
}
// And push it to the active stack:
AddBatch(CurrentBatch);
// Make sure it knows it's not isolated:
CurrentBatch.NotIsolated(graphics, font);
}
// Finally, prepare it for layout:
CurrentBatch.PrepareForLayout();
}