/// <summary>
/// Creates a material header scope to display the foldout in the material UI.
/// </summary>
/// <param name="title">GUI Content of the header.</param>
/// <param name="bitExpanded">Bit index which specifies the state of the header (whether it is open or collapsed) inside Editor Prefs.</param>
/// <param name="materialEditor">The current material editor.</param>
/// <param name="spaceAtEnd">Set this to true to make the block include space at the bottom of its UI. Set to false to not include any space.</param>
/// <param name="subHeader">Set to true to make this into a sub-header. This affects the style of the header. Set to false to make this use the standard style.</param>
/// <param name="defaultExpandedState">The default state if the header is not present</param>
/// <param name="documentationURL">[optional] Documentation page</param>
public MaterialHeaderScope(GUIContent title, uint bitExpanded, MaterialEditor materialEditor, bool spaceAtEnd = true, bool subHeader = false, uint defaultExpandedState = uint.MaxValue, string documentationURL = "")
{
if (title == null)
{
throw new ArgumentNullException(nameof(title));
}
bool beforeExpanded = materialEditor.IsAreaExpanded(bitExpanded, defaultExpandedState);
#if !UNITY_2020_1_OR_NEWER
oldIndentLevel = EditorGUI.indentLevel;
EditorGUI.indentLevel = subHeader ? 1 : 0; //fix for preset in 2019.3 (preset are one more indentation depth in material)
#endif
this.spaceAtEnd = spaceAtEnd;
if (!subHeader)
{
CoreEditorUtils.DrawSplitter();
}
GUILayout.BeginVertical();
bool saveChangeState = GUI.changed;
expanded = subHeader
? CoreEditorUtils.DrawSubHeaderFoldout(title, beforeExpanded, isBoxed: false)
: CoreEditorUtils.DrawHeaderFoldout(title, beforeExpanded, documentationURL: documentationURL);
if (expanded ^ beforeExpanded)
{
materialEditor.SetIsAreaExpanded((uint)bitExpanded, expanded);
saveChangeState = true;
}
GUI.changed = saveChangeState;
}
// This one is private as we do not want to have unhandled advanced switch. Change it if necessary.
static IDrawer FoldoutGroup <TEnum, TState>(GUIContent title, TEnum mask, ExpandedState <TEnum, TState> state, FoldoutOption options, Enabler showAdditionalProperties, SwitchEnabler switchAdditionalProperties, params ActionDrawer[] contentDrawers)
where TEnum : struct, IConvertible
{
return(Group((data, owner) =>
{
bool isBoxed = (options & FoldoutOption.Boxed) != 0;
bool isIndented = (options & FoldoutOption.Indent) != 0;
bool isSubFoldout = (options & FoldoutOption.SubFoldout) != 0;
bool noSpaceAtEnd = (options & FoldoutOption.NoSpaceAtEnd) != 0;
bool expended = state[mask];
bool newExpended = expended;
if (isSubFoldout)
{
newExpended = CoreEditorUtils.DrawSubHeaderFoldout(title, expended, isBoxed);
}
else
{
CoreEditorUtils.DrawSplitter(isBoxed);
newExpended = CoreEditorUtils.DrawHeaderFoldout(title,
expended,
isBoxed,
showAdditionalProperties == null ? (Func <bool>)null : () => showAdditionalProperties(data, owner),
switchAdditionalProperties == null ? (Action)null : () => switchAdditionalProperties(data, owner),
GetHelpURL <TEnum>(mask));
}
if (newExpended ^ expended)
{
state[mask] = newExpended;
}
if (newExpended)
{
if (isIndented)
{
++EditorGUI.indentLevel;
}
for (var i = 0; i < contentDrawers.Length; i++)
{
contentDrawers[i](data, owner);
}
if (isIndented)
{
--EditorGUI.indentLevel;
}
if (!noSpaceAtEnd)
{
EditorGUILayout.Space();
}
}
}));
}
/// <summary>
/// Creates a material header scope to display the foldout in the material UI.
/// </summary>
/// <param name="title">GUI Content of the header.</param>
/// <param name="bitExpanded">Bit index which specifies the state of the header (whether it is open or collapsed) inside Editor Prefs.</param>
/// <param name="materialEditor">The current material editor.</param>
/// <param name="spaceAtEnd">Set this to true to make the block include space at the bottom of its UI. Set to false to not include any space.</param>
/// <param name="colorDot">Specify a color to display a dot, like in the layered UI.</param>
/// <param name="subHeader">Set to true to make this into a sub-header. This affects the style of the header. Set to false to make this use the standard style.</param>
/// <param name="defaultExpandedState">The default state if the header is not present</param>
internal MaterialHeaderScope(GUIContent title, uint bitExpanded, MaterialEditor materialEditor, bool spaceAtEnd = true, Color colorDot = default, bool subHeader = false, uint defaultExpandedState = uint.MaxValue)
{
bool beforeExpanded = materialEditor.IsAreaExpanded(bitExpanded, defaultExpandedState);
#if !UNITY_2020_1_OR_NEWER
oldIndentLevel = EditorGUI.indentLevel;
EditorGUI.indentLevel = subHeader ? 1 : 0; //fix for preset in 2019.3 (preset are one more indentation depth in material)
#endif
this.spaceAtEnd = spaceAtEnd;
if (!subHeader)
{
CoreEditorUtils.DrawSplitter();
}
GUILayout.BeginVertical();
bool saveChangeState = GUI.changed;
string text = title.text;
if (colorDot != default)
{
text = " " + text;
}
expanded = subHeader
? CoreEditorUtils.DrawSubHeaderFoldout(text, beforeExpanded, isBoxed: false)
: CoreEditorUtils.DrawHeaderFoldout(text, beforeExpanded);
if (colorDot != default)
{
Rect dotRect = GUILayoutUtility.GetLastRect();
dotRect.width = 5;
dotRect.height = 5;
dotRect.y += 7;
dotRect.x += 17;
EditorGUI.DrawRect(dotRect, colorDot);
}
if (expanded ^ beforeExpanded)
{
materialEditor.SetIsAreaExpanded((uint)bitExpanded, expanded);
saveChangeState = true;
}
GUI.changed = saveChangeState;
if (expanded)
{
++EditorGUI.indentLevel;
}
}
void IDrawer.Draw(TData data, Editor owner)
{
bool expended = m_State[m_Mask];
bool newExpended;
if (m_IsSubFoldout)
{
newExpended = CoreEditorUtils.DrawSubHeaderFoldout(m_Title, expended, m_IsBoxed);
}
else
{
CoreEditorUtils.DrawSplitter(m_IsBoxed);
newExpended = CoreEditorUtils.DrawHeaderFoldout(m_Title,
expended,
m_IsBoxed,
m_Enabler == null ? (Func <bool>)null : () => m_Enabler(data, owner),
m_SwitchEnabler == null ? (Action)null : () => m_SwitchEnabler(data, owner),
m_HelpUrl);
}
if (newExpended ^ expended)
{
m_State[m_Mask] = newExpended;
}
if (!newExpended)
{
return;
}
if (m_IsIndented)
{
++EditorGUI.indentLevel;
}
for (var i = 0; i < m_ActionDrawers.Length; i++)
{
m_ActionDrawers[i](data, owner);
}
if (m_IsIndented)
{
--EditorGUI.indentLevel;
}
if (!m_NoSpaceAtEnd)
{
EditorGUILayout.Space();
}
}