public void Init(Rect buttonRect)
{
m_ButtonRectScreenPos = EditorGUIUtility.GUIToScreenRect(buttonRect);
if (dataSource == null)
{
dataSource = new MultiLevelDataSource();
}
if (gui == null)
{
gui = new AdvancedDropdownGUI(dataSource);
}
selectionChanged += dataSource.UpdateSelectedId;
// Has to be done before calling Show / ShowWithMode
buttonRect = GUIUtility.GUIToScreenRect(buttonRect);
OnDirtyList();
m_CurrentlyRenderedTree = hasSearch ? dataSource.searchTree : dataSource.mainTree;
ShowAsDropDown(buttonRect, CalculateWindowSize(buttonRect), GetLocationPriority());
if (setInitialSelectionPosition)
{
m_InitialSelectionPosition = gui.GetSelectionHeight(dataSource, buttonRect);
}
wantsMouseMove = true;
}
public float GetSelectionHeight(AdvancedDropdownDataSource dataSource, Rect buttonRect)
{
if (dataSource.mainTree.selectedItem == -1)
{
return(0);
}
float heigth = 0;
for (int i = 0; i < dataSource.mainTree.children.Count; i++)
{
var child = dataSource.mainTree.children[i];
var content = child.content;
if (dataSource.mainTree.selectedItem == i)
{
var diff = (lineStyle.CalcHeight(content, 0) - buttonRect.height) / 2f;
return(heigth + diff);
}
if (child.IsSeparator())
{
heigth += Styles.lineSeparator.CalcHeight(content, 0) + Styles.lineSeparator.margin.vertical;
}
else
{
heigth += lineStyle.CalcHeight(content, 0);
}
}
return(heigth);
}
public Vector2 CalculateContentSize(AdvancedDropdownDataSource dataSource)
{
float maxWidth = 0;
float maxHeight = 0;
bool includeArrow = false;
float arrowWidth = Styles.rightArrow.fixedWidth;
foreach (var child in dataSource.mainTree.children)
{
var content = child.content;
var a = lineStyle.CalcSize(content);
a.x += iconSize.x + 1;
if (maxWidth < a.x)
{
maxWidth = a.x + 1;
includeArrow |= child.hasChildren;
}
if (child.IsSeparator())
{
maxHeight += Styles.lineSeparator.CalcHeight(content, maxWidth) + Styles.lineSeparator.margin.vertical;
}
else
{
maxHeight += lineStyle.CalcHeight(content, maxWidth);
}
}
if (includeArrow)
{
maxWidth += arrowWidth;
}
return(new Vector2(maxWidth, maxHeight));
}
public AddComponentGUI(AdvancedDropdownDataSource dataSource) : base(dataSource)
{
}
public AdvancedDropdownGUI(AdvancedDropdownDataSource dataSource)
{
m_DataSource = dataSource;
}