internal float GetSelectionHeight(AdvancedDropdownDataSource dataSource, Rect buttonRect)
{
if (state.GetSelectedIndex(dataSource.mainTree) == -1)
{
return(0);
}
float heigth = 0;
for (int i = 0; i < dataSource.mainTree.children.Count(); i++)
{
var child = dataSource.mainTree.children.ElementAt(i);
var content = GUIContent.Temp(child.name, child.icon);
if (state.GetSelectedIndex(dataSource.mainTree) == 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);
}
internal 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 = GUIContent.Temp(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 += 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 void Init(Rect buttonRect)
{
m_ButtonRectScreenPos = EditorGUIUtility.GUIToScreenRect(buttonRect);
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_DataSource);
}
m_Gui.state = m_State;
// Has to be done before calling Show / ShowWithMode
buttonRect = GUIUtility.GUIToScreenRect(buttonRect);
OnDirtyList();
m_CurrentlyRenderedTree = hasSearch ? m_DataSource.searchTree : m_DataSource.mainTree;
ShowAsDropDown(buttonRect, CalculateWindowSize(buttonRect), GetLocationPriority());
if (setInitialSelectionPosition)
{
m_InitialSelectionPosition = m_Gui.GetSelectionHeight(m_DataSource, buttonRect);
}
wantsMouseMove = true;
SetSelectionFromState();
}
public void Show(Rect rect)
{
if (m_WindowInstance != null)
{
m_WindowInstance.Close();
m_WindowInstance = null;
}
if (m_DataSource == null)
{
m_DataSource = new CallbackDataSource(BuildRoot);
}
if (m_Gui == null)
{
m_Gui = new AdvancedDropdownGUI(m_DataSource);
}
m_WindowInstance = ScriptableObject.CreateInstance <AdvancedDropdownWindow>();
if (m_MinimumSize != Vector2.zero)
{
m_WindowInstance.minSize = m_MinimumSize;
}
m_WindowInstance.state = m_State;
m_WindowInstance.dataSource = m_DataSource;
m_WindowInstance.gui = m_Gui;
m_WindowInstance.windowClosed += (w) => ItemSelected(w.GetSelectedItem());
m_WindowInstance.Init(rect);
}
internal 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 = CalcItemSize(content);
a.x += iconSize.x + 1;
if (maxWidth < a.x)
{
maxWidth = a.x + 1;
includeArrow |= child.children.Any();
}
if (child.IsSeparator())
{
maxHeight += Styles.lineSeparator.CalcHeight(content, maxWidth) + Styles.lineSeparator.margin.vertical;
}
else
{
maxHeight += CalcItemHeight(content, maxWidth);
}
}
if (includeArrow)
{
maxWidth += arrowWidth;
}
// other size calculations may rely on m_HeaderRect and m_SearchRect, which wont be populated until the first time they are drawn
// so they need to be calculated here if needed.
if (m_HeaderRect == default(Rect))
{
var headerContent = GUIContent.Temp(dataSource.mainTree.name, dataSource.mainTree.icon);
var headerSize = Styles.header.CalcSize(headerContent);
if (maxWidth > headerSize.x)
{
headerSize.x = maxWidth;
}
headerSize.y = Styles.header.CalcHeight(headerContent, maxWidth);
m_HeaderRect = new Rect(0, 0, headerSize.x, headerSize.y);
}
if (m_SearchRect == default(Rect))
{
var controlRectSize = Styles.searchFieldStyle.CalcSize(GUIContent.none);
controlRectSize.x = maxWidth;
var controlRect = new Rect(0, 0, controlRectSize.x, controlRectSize.y);
m_SearchRect = CalculateSearchRect(ref controlRect);
}
return(new Vector2(maxWidth, maxHeight));
}
public AdvancedDropdownGUI(AdvancedDropdownDataSource dataSource)
{
m_DataSource = dataSource;
}
