/// <summary>
/// Call this after each draggable GUI block, to calculate and draw the current drag state
/// (or complete it if the mouse was released).
/// Returns TRUE if the drag operation was concluded and accepted.
/// </summary>
/// <param name="draggableList">List containing the draggable item and all other relative draggable items</param>
/// <param name="currDraggableItemIndex">Current index of the draggable item being drawn</param>
/// <param name="dragEvidenceColor">Color to use for drag divider and selection</param>
static public bool Drag(IList draggableList, int currDraggableItemIndex, Color dragEvidenceColor)
{
if (_dragData == null || _dragData.draggableList != draggableList)
{
return(false);
}
if (_waitingToApplyDrag)
{
if (Event.current.type == EventType.Repaint)
{
Event.current.Use();
}
if (Event.current.type == EventType.Used)
{
ApplyDrag();
}
return(false);
}
int listCount = _dragData.draggableList.Count;
if (currDraggableItemIndex == 0 && Event.current.type == EventType.Repaint)
{
_dragData.currDragSet = false;
}
if (!_dragData.currDragSet)
{
// Find and store eventual drag position
Rect lastRect = GUILayoutUtility.GetLastRect();
float lastRectMiddleY = lastRect.yMin + lastRect.height * 0.5f;
float mouseY = Event.current.mousePosition.y;
if (currDraggableItemIndex <= listCount - 1 && mouseY <= lastRectMiddleY)
{
HOGUI.FlatDivider(new Rect(lastRect.xMin, lastRect.yMin - 1, lastRect.width, 2), dragEvidenceColor);
_dragData.currDragIndex = currDraggableItemIndex;
_dragData.currDragSet = true;
}
else if (currDraggableItemIndex >= listCount - 1 && mouseY > lastRectMiddleY)
{
HOGUI.FlatDivider(new Rect(lastRect.xMin, lastRect.yMax - 1, lastRect.width, 2), dragEvidenceColor);
_dragData.currDragIndex = listCount;
_dragData.currDragSet = true;
}
}
if (_dragData.draggedItemIndex == currDraggableItemIndex)
{
// Evidence dragged pool
Color selectionColor = dragEvidenceColor;
selectionColor.a = 0.35f;
HOGUI.FlatDivider(GUILayoutUtility.GetLastRect(), selectionColor);
}
if (GUIUtility.hotControl < 1)
{
// End drag
return(EndDrag(true));
}
return(false);
}
static bool SetState(Editor editor, EditorWindow editorWindow, IList selectableList, int selectionItemIndex, Color selectionColor)
{
if (editor != null)
{
_editor = editor;
}
else
{
_editorWindow = editorWindow;
}
_selectionColor = selectionColor;
_selectionColor.a = 0.35f;
_unfocusedSelectionColor = new Color(selectionColor.r, selectionColor.g, selectionColor.b, 0.15f);
if (_selectData == null || !_selectData.IsStoredList(selectableList))
{
_selectData = new GUISelectData(selectableList);
}
// Check if something was deleted from the list before continuing
if (selectionItemIndex == -1 || selectionItemIndex > _selectData.selectableItemsDatas.Count - 1)
{
return(false);
}
GUISelectData.ItemData itemData = _selectData.selectableItemsDatas[selectionItemIndex];
if (Event.current.type == EventType.Repaint)
{
itemData.rect = GUILayoutUtility.GetLastRect();
}
bool wasPressed = itemData.isPressed;
bool selectionStatusChanged = false;
if (Event.current.type == EventType.MouseDown)
{
itemData.isPressed = itemData.rect.Contains(Event.current.mousePosition);
if (wasPressed != itemData.isPressed && !itemData.selected)
{
selectionStatusChanged = true;
if (!itemData.selected)
{
itemData.canBeDeselected = false;
}
}
}
else if (Event.current.type == EventType.MouseUp || Event.current.type == EventType.Used || Event.current.type == EventType.DragExited)
{
if (!itemData.canBeDeselected)
{
itemData.canBeDeselected = true;
}
else if (itemData.isPressed && itemData.selected && itemData.rect.Contains(Event.current.mousePosition))
{
selectionStatusChanged = true;
}
else if (HOGUIUtils.PanelContainsMouse() && itemData.selected && !Event.current.shift && !Event.current.control && !itemData.rect.Contains(Event.current.mousePosition))
{
itemData.selected = false;
Repaint();
}
itemData.isPressed = false;
}
if (selectionStatusChanged)
{
itemData.selected = !itemData.selected;
if (Event.current.shift)
{
_selectData.CheckFirstSelectedItem(itemData);
SelectRange(_selectData.firstSelectedItemData, itemData);
}
else if (!Event.current.control)
{
DeselectAll(itemData.selected ? itemData : null);
_selectData.CheckFirstSelectedItem(itemData);
}
Repaint();
}
if (itemData.selected)
{
HOGUI.FlatDivider(itemData.rect, IsFocusedPanel() ? _selectionColor : _unfocusedSelectionColor);
return(true);
}
return(false);
}
