internal float GetSelectionHeight(AdvancedDropdownDataSource dataSource, Rect buttonRect)
{
if (state.GetSelectedIndex(dataSource.mainTree) == -1)
{
return(0);
}
var height = 0f;
for (var i = 0; i < dataSource.mainTree.children.Count(); i++)
{
var child = dataSource.mainTree.children.ElementAt(i);
var content = new GUIContent(child.name, child.icon);
if (state.GetSelectedIndex(dataSource.mainTree) == i)
{
var diff = (lineStyle.CalcHeight(content, 0) - buttonRect.height) / 2f;
return(height + diff);
}
if (child.IsSeparator())
{
height += GUIHelpers.Styles.lineSeparator.CalcHeight(content, 0) + GUIHelpers.Styles.lineSeparator.margin.vertical;
}
else
{
height += lineStyle.CalcHeight(content, 0);
}
}
return(height);
}
public void Show(Rect rect)
{
if (m_WindowInstance != null)
{
m_WindowInstance.Close();
m_WindowInstance = null;
}
if (m_DataSource == null)
{
m_DataSource = new CallbackDataSource(BuildRoot, BuildCustomSearch);
}
if (m_Gui == null)
{
m_Gui = new AdvancedDropdownGUI();
}
m_WindowInstance = ScriptableObject.CreateInstance <AdvancedDropdownWindow>();
if (minimumSize != Vector2.zero)
{
m_WindowInstance.minSize = minimumSize;
}
if (maximumSize != Vector2.zero)
{
m_WindowInstance.maxSize = maximumSize;
}
m_WindowInstance.state = m_State;
m_WindowInstance.dataSource = m_DataSource;
m_WindowInstance.gui = m_Gui;
m_WindowInstance.windowClosed +=
w => { ItemSelected(w.GetSelectedItem()); };
m_WindowInstance.windowDestroyed += OnDestroy;
m_WindowInstance.Init(rect);
}
public void Init(Rect buttonRect)
{
var screenPoint = GUIUtility.GUIToScreenPoint(new Vector2(buttonRect.x, buttonRect.y));
m_ButtonRectScreenPos.x = screenPoint.x;
m_ButtonRectScreenPos.y = screenPoint.y;
if (m_State == null)
{
m_State = new AdvancedDropdownState();
}
if (m_DataSource == null)
{
m_DataSource = new MultiLevelDataSource();
}
if (m_Gui == null)
{
m_Gui = new AdvancedDropdownGUI();
}
m_Gui.state = m_State;
m_Gui.Init();
// Has to be done before calling Show / ShowWithMode
screenPoint = GUIUtility.GUIToScreenPoint(new Vector2(buttonRect.x, buttonRect.y));
buttonRect.x = screenPoint.x;
buttonRect.y = screenPoint.y;
Vector2 requiredDropdownSize;
OnDirtyList();
m_CurrentlyRenderedTree = hasSearch ? m_DataSource.searchTree : m_DataSource.mainTree;
ShowAsDropDown(buttonRect, CalculateWindowSize(m_ButtonRectScreenPos, out requiredDropdownSize));
// If the dropdown is as height as the screen height, give it some margin
if (position.height < requiredDropdownSize.y)
{
var pos = position;
pos.y += 5;
pos.height -= 10;
position = pos;
}
if (setInitialSelectionPosition)
{
m_InitialSelectionPosition = m_Gui.GetSelectionHeight(m_DataSource, buttonRect);
}
wantsMouseMove = true;
SetSelectionFromState();
}
internal Vector2 CalculateContentSize(AdvancedDropdownDataSource dataSource)
{
var maxWidth = 0f;
var maxHeight = 0f;
var includeArrow = false;
var arrowWidth = 0f;
foreach (var child in dataSource.mainTree.children)
{
var content = new GUIContent(child.name, child.icon);
var a = lineStyle.CalcSize(content);
a.x += iconSize.x + 1;
if (maxWidth < a.x)
{
maxWidth = a.x + 1;
includeArrow |= child.children.Any();
}
if (child.IsSeparator())
{
maxHeight += GUIHelpers.Styles.lineSeparator.CalcHeight(content, maxWidth) + GUIHelpers.Styles.lineSeparator.margin.vertical;
}
else
{
maxHeight += lineStyle.CalcHeight(content, maxWidth);
}
if (arrowWidth == 0)
{
lineStyle.CalcMinMaxWidth(Styles.arrowRightContent, out arrowWidth, out arrowWidth);
}
}
if (includeArrow)
{
maxWidth += arrowWidth;
}
return(new Vector2(maxWidth, maxHeight));
}
