private void TryDrawAlphaCheckBg(Rect position, HsvLookup id)
{
if (id == HsvLookup.A && Event.current.type == EventType.Repaint)
{
Rect uvLayout = new Rect
{
width = position.width / position.height, // texture aspect is 1:1
height = 1f
};
Graphics.DrawTexture(position, k_alphaSliderCheckerBackground, uvLayout, 0, 0, 0, 0);
}
}
private bool TryUpdateHsvLookup(SerializedProperty property, string name, HsvLookup id)
{
SerializedProperty minProp = property.FindPropertyRelative($"{name}Min");
SerializedProperty maxProp = property.FindPropertyRelative($"{name}Max");
if (m_hsvLookup.TryGetValue(id, out MinMaxPair pair))
{
pair.Min = minProp.floatValue;
pair.Max = maxProp.floatValue;
return(true);
}
else
{
m_hsvLookup[id] = new MinMaxPair(name, minProp.floatValue, maxProp.floatValue);
return(false);
}
}
private void DrawHsvProperty(
ref Rect position, SerializedProperty property, HsvLookup id, Texture2D hsvTexture,
int width, float hue, float saturation, ref float oldHue, ref float oldSaturation
)
{
MinMaxPair pair = GetHsvProperty(id);
if (m_hsvStyle == null)
{
m_hsvStyle = new GUIStyle(EditorStyles.label);
}
position.y += position.height;
position.y += EditorGUIUtility.singleLineHeight / 2f;
using (var check = new EditorGUI.ChangeCheckScope())
{
Rect texPos = new Rect(position);
texPos.y -= EditorGUIUtility.singleLineHeight / 2f;
texPos.x += EditorGUIUtility.labelWidth + 1;
texPos.width -= EditorGUIUtility.labelWidth - 1;
TryDrawAlphaCheckBg(texPos, id);
hsvTexture = Update1DSlider(hsvTexture, width, hue, saturation, ref oldHue, ref oldSaturation, (int)id, id != HsvLookup.A);
m_hsvStyle.normal.background = hsvTexture;
GUI.Box(texPos, GUIContent.none, m_hsvStyle);
EditorGUI.MinMaxSlider(position, pair.Name, ref pair.Min, ref pair.Max, k_minSaturation, 1);
if (check.changed)
{
OnColorChanged(property, pair);
}
}
}
private MinMaxPair GetHsvProperty(HsvLookup lookup)
{
return(m_hsvLookup[lookup]);
}
