private void HandleDragging()
{
if (hasSelected && !MouseOnTopOfInspector())
{
Rect textureBounds = new Rect(0, 0, textureActualWidth, textureActualHeight);
EditorGUI.BeginChangeCheck();
Rect oldRect = selectedSpriteRect;
Rect newRect = SpriteEditorUtility.ClampedRect(SpriteEditorUtility.RoundedRect(SpriteEditorHandles.SliderRect(oldRect)), textureBounds, true);
if (EditorGUI.EndChangeCheck())
{
selectedSpriteRect = newRect;
}
}
}
protected static Rect ClampSpriteRect(Rect rect, float maxX, float maxY)
{
// Clamp rect to width height
rect = FlipNegativeRect(rect);
Rect newRect = new Rect();
newRect.xMin = Mathf.Clamp(rect.xMin, 0, maxX - 1);
newRect.yMin = Mathf.Clamp(rect.yMin, 0, maxY - 1);
newRect.xMax = Mathf.Clamp(rect.xMax, 1, maxX);
newRect.yMax = Mathf.Clamp(rect.yMax, 1, maxY);
// Prevent width and height to be 0 value after clamping.
if (Mathf.RoundToInt(newRect.width) == 0)
{
newRect.width = 1;
}
if (Mathf.RoundToInt(newRect.height) == 0)
{
newRect.height = 1;
}
return(SpriteEditorUtility.RoundedRect(newRect));
}
