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++)
{
AdvancedDropdownItem child = dataSource.MainTree.Children.ElementAt(i);
GUIContent content = new GUIContent(child.Name, child.Icon);
if (State.GetSelectedIndex(dataSource.MainTree) == i)
{
float 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 void Show(Rect rect)
{
if (windowInstance != null)
{
windowInstance.Close();
windowInstance = null;
}
if (dataSource == null)
{
dataSource = new CallbackDataSource(BuildRoot);
}
if (gui == null)
{
gui = new AdvancedDropdownGUI();
}
windowInstance = ScriptableObject.CreateInstance <AdvancedDropdownWindow> ();
if (minimumSize != Vector2.zero)
{
windowInstance.minSize = minimumSize;
}
if (maximumSize != Vector2.zero)
{
windowInstance.maxSize = maximumSize;
}
windowInstance.State = state;
windowInstance.DataSource = dataSource;
windowInstance.Gui = gui;
windowInstance.WindowClosed += (w) => ItemSelected(w.GetSelectedItem());
windowInstance.Init(rect);
}
public void Init(Rect buttonRect)
{
Vector2 screenPoint = GUIUtility.GUIToScreenPoint(new Vector2(buttonRect.x, buttonRect.y));
buttonRectScreenPos.x = screenPoint.x;
buttonRectScreenPos.y = screenPoint.y;
if (state == null)
{
state = new AdvancedDropdownState();
}
if (dataSource == null)
{
dataSource = new MultiLevelDataSource();
}
if (gui == null)
{
gui = new AdvancedDropdownGUI();
}
gui.State = state;
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();
currentlyRenderedTree = HasSearch ? dataSource.SearchTree : dataSource.MainTree;
ShowAsDropDown(buttonRect, CalculateWindowSize(buttonRectScreenPos, out requiredDropdownSize));
// If the dropdown is as height as the screen height, give it some margin
if (position.height < requiredDropdownSize.y)
{
Rect pos = position;
pos.y += 5;
pos.height -= 10;
position = pos;
}
if (SetInitialSelectionPosition)
{
initialSelectionPosition = gui.GetSelectionHeight(dataSource, buttonRect);
}
wantsMouseMove = true;
SetSelectionFromState();
}
internal Vector2 CalculateContentSize(AdvancedDropdownDataSource dataSource)
{
float maxWidth = 0;
float maxHeight = 0;
bool includeArrow = false;
float arrowWidth = 0;
foreach (AdvancedDropdownItem child in dataSource.MainTree.Children)
{
GUIContent content = new GUIContent(child.Name, child.Icon);
Vector2 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 (arrowWidth == 0)
{
LineStyle.CalcMinMaxWidth(Styles.arrowRightContent, out arrowWidth, out arrowWidth);
}
}
if (includeArrow)
{
maxWidth += arrowWidth;
}
return(new Vector2(maxWidth, maxHeight));
}
