public LargePreview(PreviewRender.PreviewBuilder preview, ShaderDiagram.Document doc)
{
_preview = preview;
_document = doc;
InitializeComponent();
SetStyle(System.Windows.Forms.ControlStyles.AllPaintingInWmPaint, true);
SetStyle(System.Windows.Forms.ControlStyles.UserPaint, true);
}
public LargePreview(PreviewRender.PreviewBuilder preview, ShaderDiagram.Document doc)
{
_preview = preview;
_document = doc;
InitializeComponent();
SetStyle(System.Windows.Forms.ControlStyles.AllPaintingInWmPaint, true);
SetStyle(System.Windows.Forms.ControlStyles.UserPaint, true);
}
public override void Render(Graphics graphics, SizeF minimumSize, PointF location)
{
if (Node.Tag is ShaderFragmentNodeTag)
{
SizeF size = Measure(graphics);
if (!graphics.IsVisible(new Rectangle() {X = (int)location.X, Y = (int)location.Y, Width = (int)size.Width, Height = (int)size.Height }))
return;
if (_builder == null)
{
var nodeGraph = ModelConversion.ToShaderPatcherLayer(_graphControl);
var shader = ShaderPatcherLayer.NodeGraph.GeneratePreviewShader(nodeGraph, ((ShaderFragmentNodeTag)Node.Tag).Id);
_builder = PreviewRender.Manager.Instance.CreatePreview(shader);
}
// (assuming no rotation on this transformation -- scale is easy to find)
Size idealSize = new Size((int)(graphics.Transform.Elements[0] * size.Width), (int)(graphics.Transform.Elements[3] * size.Height));
if (_builder != null && _builder.Bitmap != null) {
// compare the current bitmap size to the size we'd like
Size bitmapSize = _builder.Bitmap.Size;
float difference = System.Math.Max(System.Math.Abs(1.0f - bitmapSize.Width / (float)(idealSize.Width)), System.Math.Abs(1.0f - bitmapSize.Height / (float)(idealSize.Height)));
if (difference > 0.1f) {
_builder.Invalidate();
}
}
if (_builder.Bitmap==null) {
_builder.Update(_document, idealSize);
}
if (_builder.Bitmap!=null) {
graphics.DrawImage(_builder.Bitmap, new RectangleF() { X = location.X, Y = location.Y, Width = size.Width, Height = size.Height });
}
}
}
public void InvalidateShaderStructure()
{
_builder = null;
}
public void InvalidateAttachedConstants()
{
_builder = null; /* required complete rebuild of shader */
}
public ShaderFragmentPreviewItem(HyperGraph.GraphControl graphControl, ShaderDiagram.Document doc)
{
_graphControl = graphControl; _document = doc; _builder = null;
}
