//绘制预览界面
public void DrawPreviewEvent()
{
Event currentEvent = Event.current;
EventType type = currentEvent.type;
int x = m_cellPadding, y = m_cellPadding;
int width = Screen.width - m_cellPadding;
int spacingX = cellSize + m_cellPadding;
int spacingY = spacingX;
if (m_mode == Mode.DetailedMode)
{
spacingY += 32;
}
GameObject[] draggeds = draggedObjects;
bool isDragging = (draggeds != null);
int indexUnderMouse = GetCellUnderMouse(spacingX, spacingY);
if (isDragging)
{
foreach (var gameObject in draggeds)
{
var result = FindItem(gameObject);
if (result != null)
{
_selections.Add(result);
}
}
}
string searchFilter = EditorPrefs.GetString("PrefabWin_SearchFilter", null);
if (mReset && type == EventType.Repaint)
{
mReset = false;
foreach (PreviewItem item in mItems)
{
GeneratePreview(item, false);
}
RectivateLights();
}
bool eligibleToDrag = (currentEvent.mousePosition.y < Screen.height - 40);
if (type == EventType.MouseDown)
{
m_mouseIsInside = true;
}
else if (type == EventType.MouseDrag)
{
m_mouseIsInside = true;
if (indexUnderMouse != -1 && eligibleToDrag)
{
if (draggedObjectIsOurs)
{
DragAndDrop.StartDrag("Prefab Tool");
}
currentEvent.Use();
}
}
else if (type == EventType.MouseUp)
{
DragAndDrop.PrepareStartDrag();
m_mouseIsInside = false;
Repaint();
}
else if (type == EventType.DragUpdated)
{
m_mouseIsInside = true;
UpdateVisual();
currentEvent.Use();
}
else if (type == EventType.DragPerform)
{
if (draggeds != null)
{
if (_selections != null)
{
foreach (var selection in _selections)
{
DestroyTexture(selection);
mItems.Remove(selection);
}
}
foreach (var dragged in draggeds)
{
AddItem(dragged, indexUnderMouse);
++indexUnderMouse;
}
draggeds = null;
}
m_mouseIsInside = false;
currentEvent.Use();
}
else if (type == EventType.DragExited || type == EventType.Ignore)
{
m_mouseIsInside = false;
}
if (!m_mouseIsInside)
{
_selections.Clear();
draggeds = null;
}
BetterList <int> indices = new BetterList <int>();
for (int i = 0; i < mItems.size;)
{
if (draggeds != null && indices.size == indexUnderMouse)
{
indices.Add(-1);
}
var has = _selections.Exists(item => item == mItems[i]);
if (!has)
{
if (string.IsNullOrEmpty(searchFilter) ||
mItems[i].prefab.name.IndexOf(searchFilter, System.StringComparison.CurrentCultureIgnoreCase) != -1)
{
indices.Add(i);
}
}
++i;
}
if (!indices.Contains(-1))
{
indices.Add(-1);
}
if (eligibleToDrag && type == EventType.MouseDown && indexUnderMouse > -1)
{
GUIUtility.keyboardControl = 0;
if (currentEvent.button == 0 && indexUnderMouse < indices.size)
{
int index = indices[indexUnderMouse];
if (index != -1 && index < mItems.size)
{
_selections.Add(mItems[index]);
draggedObjects = _selections.Select(item => item.prefab).ToArray();
draggeds = _selections.Select(item => item.prefab).ToArray();
currentEvent.Use();
}
}
}
m_pos = EditorGUILayout.BeginScrollView(m_pos);
{
Color normal = new Color(1f, 1f, 1f, 0.5f);
for (int i = 0; i < indices.size; ++i)
{
int index = indices[i];
PreviewItem item = (index != -1) ? mItems[index] : _selections.Count == 0 ? null : _selections[0];
if (item != null && item.prefab == null)
{
mItems.RemoveAt(index);
continue;
}
Rect rect = new Rect(x, y, cellSize, cellSize);
Rect inner = rect;
inner.xMin += 2f;
inner.xMax -= 2f;
inner.yMin += 2f;
inner.yMax -= 2f;
rect.yMax -= 1f;
if (!isDragging && (m_mode == Mode.CompactMode || (item == null || item.tex != null)))
{
m_content.tooltip = (item != null) ? item.prefab.name : "Click to add";
}
else
{
m_content.tooltip = "";
}
GUI.color = normal;
UIEditorHelper.DrawTiledTexture(inner, UIEditorHelper.backdropTexture);
GUI.color = Color.white;
GUI.backgroundColor = normal;
if (GUI.Button(rect, m_content, "Button"))
{
if (item == null || currentEvent.button == 0)
{
string path = EditorUtility.OpenFilePanel("Add a prefab", "", "prefab");
if (!string.IsNullOrEmpty(path))
{
PreviewItem newEnt = CreateItemByPath(path);
if (newEnt != null)
{
mItems.Add(newEnt);
Save();
}
}
}
else if (currentEvent.button == 1)
{
ContextMenu.AddItemWithArge("更新预览", false, delegate {
GeneratePreview(item, true);
}, index);
ContextMenu.AddItemWithArge("删除当前", false, RemoveItem, index);
ContextMenu.Show();
}
}
string caption = (item == null) ? "" : item.prefab.name.Replace("Control - ", "");
if (item != null)
{
if (item.tex == null)
{
GeneratePreview(item, false);
}
if (item.tex != null)
{
GUI.DrawTexture(inner, item.tex);
var labelPos = new Rect(inner);
var labelStyle = EditorStyles.label;
labelPos.height = labelStyle.lineHeight;
labelPos.y = inner.height - labelPos.height + 5;
labelStyle.fontSize = 16;
labelStyle.alignment = TextAnchor.LowerCenter;
{
GUI.color = Color.black;
var name = item.prefab.name.Split('(');
if (name.Length == 2)
{
GUI.Label(rect, name[0] + "\n(" + name[1], labelStyle);
}
else
{
GUI.Label(rect, item.prefab.name, labelStyle);
}
}
labelStyle.alignment = TextAnchor.UpperLeft;
labelStyle.fontSize = m_labelDefaultFontSize;
}
else if (m_mode != Mode.DetailedMode)
{
GUI.Label(inner, caption, m_style);
caption = "";
}
}
else
{
GUI.Label(inner, "Add", m_style);
}
if (m_mode == Mode.DetailedMode)
{
GUI.backgroundColor = new Color(1f, 1f, 1f, 0.5f);
GUI.contentColor = new Color(1f, 1f, 1f, 0.7f);
GUI.Label(new Rect(rect.x, rect.y + rect.height, rect.width, 32f), caption, "ProgressBarBack");
GUI.contentColor = Color.white;
GUI.backgroundColor = Color.white;
}
x += spacingX;
if (x + spacingX > width)
{
y += spacingY;
x = m_cellPadding;
}
}
GUILayout.Space(y + spacingY);
}
EditorGUILayout.EndScrollView();
GUILayout.BeginHorizontal();
{
string after = EditorGUILayout.TextField("", searchFilter, "SearchTextField", GUILayout.Width(Screen.width - 20f));
if (GUILayout.Button("", "SearchCancelButton", GUILayout.Width(18f)))
{
after = "";
GUIUtility.keyboardControl = 0;
}
if (searchFilter != after)
{
EditorPrefs.SetString("PrefabWin_SearchFilter", after);
searchFilter = after;
}
}
GUILayout.EndHorizontal();
SizePercent = EditorGUILayout.Slider(SizePercent, 0, 2);
}