/// <summary> Draw a foldout header </summary>
/// <param name="title"> The title of the header </param>
/// <param name="state"> The state of the header </param>
/// <param name="isBoxed"> [optional] is the eader contained in a box style ? </param>
/// <param name="hasMoreOptions"> [optional] Delegate used to draw the right state of the advanced button. If null, no button drawn. </param>
/// <param name="toggleMoreOptions"> [optional] Callback call when advanced button clicked. Should be used to toggle its state. </param>
/// <returns>return the state of the foldout header</returns>
public static bool DrawSubHeaderFoldout(GUIContent title, bool state, bool isBoxed = false, Func<bool> hasMoreOptions = null, Action toggleMoreOptions = null)
{
const float height = 17f;
var backgroundRect = GUILayoutUtility.GetRect(1f, height);
var labelRect = backgroundRect;
labelRect.xMin += 16f;
labelRect.xMax -= 20f;
var foldoutRect = backgroundRect;
foldoutRect.y += 1f;
foldoutRect.x += 15 * EditorGUI.indentLevel; //GUI do not handle indent. Handle it here
foldoutRect.width = 13f;
foldoutRect.height = 13f;
// More options
var advancedRect = new Rect();
if (hasMoreOptions != null)
{
advancedRect = backgroundRect;
advancedRect.x += advancedRect.width - 16 - 1;
advancedRect.height = 16;
advancedRect.width = 16;
bool moreOptions = hasMoreOptions();
bool newMoreOptions = Styles.DrawMoreOptions(advancedRect, moreOptions);
if (moreOptions ^ newMoreOptions)
toggleMoreOptions?.Invoke();
}
// Background rect should be full-width
backgroundRect.xMin = 0f;
backgroundRect.width += 4f;
if (isBoxed)
{
labelRect.xMin += 5;
foldoutRect.xMin += 5;
backgroundRect.xMin = EditorGUIUtility.singleLineHeight;
backgroundRect.width -= 3;
}
// Title
EditorGUI.LabelField(labelRect, title, EditorStyles.boldLabel);
// Active checkbox
state = GUI.Toggle(foldoutRect, state, GUIContent.none, EditorStyles.foldout);
var e = Event.current;
if (e.type == EventType.MouseDown && backgroundRect.Contains(e.mousePosition) && !advancedRect.Contains(e.mousePosition) && e.button == 0)
{
state = !state;
e.Use();
}
return state;
}
/// <summary>Draw a header toggle like in Volumes</summary>
/// <param name="title"> The title of the header </param>
/// <param name="group"> The group of the header </param>
/// <param name="activeField">The active field</param>
/// <param name="contextAction">The context action</param>
/// <param name="hasMoreOptions">Delegate saying if we have MoreOptions</param>
/// <param name="toggleMoreOptions">Callback called when the MoreOptions is toggled</param>
/// <returns>return the state of the foldout header</returns>
public static bool DrawHeaderToggle(GUIContent title, SerializedProperty group, SerializedProperty activeField, Action <Vector2> contextAction = null, Func <bool> hasMoreOptions = null, Action toggleMoreOptions = null)
{
var backgroundRect = GUILayoutUtility.GetRect(1f, 17f);
var labelRect = backgroundRect;
labelRect.xMin += 32f;
labelRect.xMax -= 20f + 16 + 5;
var foldoutRect = backgroundRect;
foldoutRect.y += 1f;
foldoutRect.width = 13f;
foldoutRect.height = 13f;
var toggleRect = backgroundRect;
toggleRect.x += 16f;
toggleRect.y += 2f;
toggleRect.width = 13f;
toggleRect.height = 13f;
// More options 1/2
var moreOptionsRect = new Rect();
if (hasMoreOptions != null)
{
moreOptionsRect = backgroundRect;
moreOptionsRect.x += moreOptionsRect.width - 16 - 1 - 16 - 5;
moreOptionsRect.height = 15;
moreOptionsRect.width = 16;
}
// Background rect should be full-width
backgroundRect.xMin = 0f;
backgroundRect.width += 4f;
// Background
float backgroundTint = EditorGUIUtility.isProSkin ? 0.1f : 1f;
EditorGUI.DrawRect(backgroundRect, new Color(backgroundTint, backgroundTint, backgroundTint, 0.2f));
// Title
using (new EditorGUI.DisabledScope(!activeField.boolValue))
EditorGUI.LabelField(labelRect, title, EditorStyles.boldLabel);
// Foldout
group.serializedObject.Update();
group.isExpanded = GUI.Toggle(foldoutRect, group.isExpanded, GUIContent.none, EditorStyles.foldout);
group.serializedObject.ApplyModifiedProperties();
// Active checkbox
activeField.serializedObject.Update();
activeField.boolValue = GUI.Toggle(toggleRect, activeField.boolValue, GUIContent.none, CoreEditorStyles.smallTickbox);
activeField.serializedObject.ApplyModifiedProperties();
// More options 2/2
if (hasMoreOptions != null)
{
bool moreOptions = hasMoreOptions();
bool newMoreOptions = Styles.DrawMoreOptions(moreOptionsRect, moreOptions);
if (moreOptions ^ newMoreOptions)
{
toggleMoreOptions?.Invoke();
}
}
// Context menu
var menuIcon = CoreEditorStyles.paneOptionsIcon;
var menuRect = new Rect(labelRect.xMax + 3f + 16 + 5, labelRect.y + 1f, menuIcon.width, menuIcon.height);
if (contextAction != null)
{
GUI.DrawTexture(menuRect, menuIcon);
}
// Handle events
var e = Event.current;
if (e.type == EventType.MouseDown)
{
if (contextAction != null && menuRect.Contains(e.mousePosition))
{
contextAction(new Vector2(menuRect.x, menuRect.yMax));
e.Use();
}
else if (labelRect.Contains(e.mousePosition))
{
if (e.button == 0)
{
group.isExpanded = !group.isExpanded;
}
else if (contextAction != null)
{
contextAction(e.mousePosition);
}
e.Use();
}
}
return(group.isExpanded);
}
/// <summary> Draw a foldout header </summary>
/// <param name="title"> The title of the header </param>
/// <param name="state"> The state of the header </param>
/// <param name="isBoxed"> [optional] is the eader contained in a box style ? </param>
/// <param name="hasMoreOptions"> [optional] Delegate used to draw the right state of the advanced button. If null, no button drawn. </param>
/// <param name="toggleMoreOptions"> [optional] Callback call when advanced button clicked. Should be used to toggle its state. </param>
/// <returns>return the state of the foldout header</returns>
public static bool DrawHeaderFoldout(GUIContent title, bool state, bool isBoxed = false, Func <bool> hasMoreOptions = null, Action toggleMoreOptions = null)
{
const float height = 17f;
var backgroundRect = GUILayoutUtility.GetRect(1f, height);
var labelRect = backgroundRect;
labelRect.xMin += 16f;
labelRect.xMax -= 20f;
var foldoutRect = backgroundRect;
foldoutRect.y += 1f;
foldoutRect.width = 13f;
foldoutRect.height = 13f;
foldoutRect.x = labelRect.xMin + 15 * (EditorGUI.indentLevel - 1); //fix for presset
// More options 1/2
var moreOptionsRect = new Rect();
if (hasMoreOptions != null)
{
moreOptionsRect = backgroundRect;
moreOptionsRect.x += moreOptionsRect.width - 16 - 1;
moreOptionsRect.height = 15;
moreOptionsRect.width = 16;
}
// Background rect should be full-width
backgroundRect.xMin = 0f;
backgroundRect.width += 4f;
if (isBoxed)
{
labelRect.xMin += 5;
foldoutRect.xMin += 5;
backgroundRect.xMin = EditorGUIUtility.singleLineHeight;
backgroundRect.width -= 1;
}
// Background
float backgroundTint = EditorGUIUtility.isProSkin ? 0.1f : 1f;
EditorGUI.DrawRect(backgroundRect, new Color(backgroundTint, backgroundTint, backgroundTint, 0.2f));
// More options 2/2
if (hasMoreOptions != null)
{
EditorGUI.BeginChangeCheck();
Styles.DrawMoreOptions(moreOptionsRect, hasMoreOptions());
if (EditorGUI.EndChangeCheck() && toggleMoreOptions != null)
{
toggleMoreOptions();
}
}
// Title
EditorGUI.LabelField(labelRect, title, EditorStyles.boldLabel);
// Active checkbox
state = GUI.Toggle(foldoutRect, state, GUIContent.none, EditorStyles.foldout);
var e = Event.current;
if (e.type == EventType.MouseDown && backgroundRect.Contains(e.mousePosition) && !moreOptionsRect.Contains(e.mousePosition) && e.button == 0)
{
state = !state;
e.Use();
}
return(state);
}