/// <summary>
/// Draw an enlarged sprite within the specified texture atlas.
/// </summary>
public Rect DrawSprite(Texture2D tex, Rect sprite, Material mat, bool addPadding, int maxSize)
{
float paddingX = addPadding ? 4f / tex.width : 0f;
float paddingY = addPadding ? 4f / tex.height : 0f;
float ratio = (sprite.height + paddingY) / (sprite.width + paddingX);
ratio *= (float)tex.height / tex.width;
// Draw the checkered background
Color c = GUI.color;
Rect rect = NGUIEditorTools.DrawBackground(tex, ratio);
GUI.color = c;
if (maxSize > 0)
{
float dim = maxSize / Mathf.Max(rect.width, rect.height);
rect.width *= dim;
rect.height *= dim;
}
// We only want to draw into this rectangle
if (Event.current.type == EventType.Repaint)
{
if (mat == null)
{
GUI.DrawTextureWithTexCoords(rect, tex, sprite);
}
else
{
// NOTE: DrawPreviewTexture doesn't seem to support BeginGroup-based clipping
// when a custom material is specified. It seems to be a bug in Unity.
// Passing 'null' for the material or omitting the parameter clips as expected.
UnityEditor.EditorGUI.DrawPreviewTexture(sprite, tex, mat);
//UnityEditor.EditorGUI.DrawPreviewTexture(drawRect, tex);
//GUI.DrawTexture(drawRect, tex);
}
rect = new Rect(sprite.x + rect.x, sprite.y + rect.y, sprite.width, sprite.height);
}
return(rect);
}