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Bob.Song
2026-03-05 18:07:55 +08:00
commit e125bb869e
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Assets/Plugins/FairyGUI/Scripts/UI/Controller.cs Normal file
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using System.Collections.Generic;
using FairyGUI.Utils;
using System;
namespace FairyGUI
{
/// <summary>
/// Controller class.
/// 控制器类。控制器的创建和设计需通过编辑器完成，不建议使用代码创建。
/// 最常用的方法是通过selectedIndex获得或改变控制器的活动页面。如果要获得控制器页面改变的通知，使用onChanged事件。
/// </summary>
public class Controller : EventDispatcher
{
/// <summary>
/// Name of the controller
/// 控制器名称。
/// </summary>
public string name;
internal GComponent parent;
internal bool autoRadioGroupDepth;
internal bool changing;
int _selectedIndex;
int _previousIndex;
List<string> _pageIds;
List<string> _pageNames;
List<ControllerAction> _actions;
EventListener _onChanged;
static uint _nextPageId;
public Controller()
{
_pageIds = new List<string>();
_pageNames = new List<string>();
_selectedIndex = -1;
_previousIndex = -1;
}
public void Dispose()
{
RemoveEventListeners();
}
/// <summary>
/// When controller page changed.
/// 当控制器活动页面改变时，此事件被触发。
/// </summary>
public EventListener onChanged
{
get { return _onChanged ?? (_onChanged = new EventListener(this, "onChanged")); }
}
/// <summary>
/// Current page index.
/// 获得或设置当前活动页面索引。
/// </summary>
public int selectedIndex
{
get
{
return _selectedIndex;
}
set
{
if (_selectedIndex != value)
{
if (value > _pageIds.Count - 1)
throw new IndexOutOfRangeException("" + value);
changing = true;
_previousIndex = _selectedIndex;
_selectedIndex = value;
parent.ApplyController(this);
DispatchEvent("onChanged", null);
changing = false;
}
}
}
/// <summary>
/// Set current page index, no onChanged event.
/// 通过索引设置当前活动页面，和selectedIndex的区别在于，这个方法不会触发onChanged事件。
/// </summary>
/// <param name="value">Page index</param>
public void SetSelectedIndex(int value)
{
if (_selectedIndex != value)
{
if (value > _pageIds.Count - 1)
throw new IndexOutOfRangeException("" + value);
changing = true;
_previousIndex = _selectedIndex;
_selectedIndex = value;
parent.ApplyController(this);
changing = false;
}
}
/// <summary>
/// Set current page by name, no onChanged event.
/// 通过页面名称设置当前活动页面，和selectedPage的区别在于，这个方法不会触发onChanged事件。
/// </summary>
/// <param name="value">Page name</param>
public void SetSelectedPage(string value)
{
int i = _pageNames.IndexOf(value);
if (i == -1)
i = 0;
this.SetSelectedIndex(i);
}
/// <summary>
/// Current page name.
/// 获得当前活动页面名称
/// </summary>
public string selectedPage
{
get
{
if (_selectedIndex == -1)
return null;
else
return _pageNames[_selectedIndex];
}
set
{
int i = _pageNames.IndexOf(value);
if (i == -1)
i = 0;
this.selectedIndex = i;
}
}
[Obsolete("Use previousIndex")]
public int previsousIndex
{
get { return _previousIndex; }
}
/// <summary>
/// Previouse page index.
/// 获得上次活动页面索引
/// </summary>
public int previousIndex
{
get { return _previousIndex; }
}
/// <summary>
/// Previous page name.
/// 获得上次活动页面名称。
/// </summary>
public string previousPage
{
get
{
if (_previousIndex == -1)
return null;
else
return _pageNames[_previousIndex];
}
}
/// <summary>
/// Page count of this controller.
/// 获得页面数量。
/// </summary>
public int pageCount
{
get { return _pageIds.Count; }
}
/// <summary>
/// Get page name by an index.
/// 通过页面索引获得页面名称。
/// </summary>
/// <param name="index">Page index</param>
/// <returns>Page Name</returns>
public string GetPageName(int index)
{
return _pageNames[index];
}
/// <summary>
/// Get page id by an index.
/// 通过页面索引获得页面id。
/// </summary>
/// <param name="index">Page index</param>
/// <returns>Page Id</returns>
public string GetPageId(int index)
{
return _pageIds[index];
}
/// <summary>
/// Get page id by name
/// </summary>
/// <param name="aName"></param>
/// <returns></returns>
public string GetPageIdByName(string aName)
{
int i = _pageNames.IndexOf(aName);
if (i != -1)
return _pageIds[i];
else
return null;
}
/// <summary>
/// Add a new page to this controller.
/// </summary>
/// <param name="name">Page name</param>
public void AddPage(string name)
{
if (name == null)
name = string.Empty;
AddPageAt(name, _pageIds.Count);
}
/// <summary>
/// Add a new page to this controller at a certain index.
/// </summary>
/// <param name="name">Page name</param>
/// <param name="index">Insert position</param>
public void AddPageAt(string name, int index)
{
string nid = "_" + (_nextPageId++);
if (index == _pageIds.Count)
{
_pageIds.Add(nid);
_pageNames.Add(name);
}
else
{
_pageIds.Insert(index, nid);
_pageNames.Insert(index, name);
}
}
/// <summary>
/// Remove a page.
/// </summary>
/// <param name="name">Page name</param>
public void RemovePage(string name)
{
int i = _pageNames.IndexOf(name);
if (i != -1)
{
_pageIds.RemoveAt(i);
_pageNames.RemoveAt(i);
if (_selectedIndex >= _pageIds.Count)
this.selectedIndex = _selectedIndex - 1;
else
parent.ApplyController(this);
}
}
/// <summary>
/// Removes a page at a certain index.
/// </summary>
/// <param name="index"></param>
public void RemovePageAt(int index)
{
_pageIds.RemoveAt(index);
_pageNames.RemoveAt(index);
if (_selectedIndex >= _pageIds.Count)
this.selectedIndex = _selectedIndex - 1;
else
parent.ApplyController(this);
}
/// <summary>
/// Remove all pages.
/// </summary>
public void ClearPages()
{
_pageIds.Clear();
_pageNames.Clear();
if (_selectedIndex != -1)
this.selectedIndex = -1;
else
parent.ApplyController(this);
}
/// <summary>
/// Check if the controller has a page.
/// </summary>
/// <param name="aName">Page name.</param>
/// <returns></returns>
public bool HasPage(string aName)
{
return _pageNames.IndexOf(aName) != -1;
}
internal int GetPageIndexById(string aId)
{
return _pageIds.IndexOf(aId);
}
internal string GetPageNameById(string aId)
{
int i = _pageIds.IndexOf(aId);
if (i != -1)
return _pageNames[i];
else
return null;
}
internal string selectedPageId
{
get
{
if (_selectedIndex == -1)
return string.Empty;
else
return _pageIds[_selectedIndex];
}
set
{
int i = _pageIds.IndexOf(value);
if (i != -1)
this.selectedIndex = i;
}
}
internal string oppositePageId
{
set
{
int i = _pageIds.IndexOf(value);
if (i > 0)
this.selectedIndex = 0;
else if (_pageIds.Count > 1)
this.selectedIndex = 1;
}
}
internal string previousPageId
{
get
{
if (_previousIndex == -1)
return null;
else
return _pageIds[_previousIndex];
}
}
public void RunActions()
{
if (_actions != null)
{
int cnt = _actions.Count;
for (int i = 0; i < cnt; i++)
{
_actions[i].Run(this, previousPageId, selectedPageId);
}
}
}
public void Setup(ByteBuffer buffer)
{
int beginPos = buffer.position;
buffer.Seek(beginPos, 0);
name = buffer.ReadS();
autoRadioGroupDepth = buffer.ReadBool();
buffer.Seek(beginPos, 1);
int cnt = buffer.ReadShort();
_pageIds.Capacity = cnt;
_pageNames.Capacity = cnt;
for (int i = 0; i < cnt; i++)
{
_pageIds.Add(buffer.ReadS());
_pageNames.Add(buffer.ReadS());
}
int homePageIndex = 0;
if (buffer.version >= 2)
{
int homePageType = buffer.ReadByte();
switch (homePageType)
{
case 1:
homePageIndex = buffer.ReadShort();
break;
case 2:
homePageIndex = _pageNames.IndexOf(UIPackage.branch);
if (homePageIndex == -1)
homePageIndex = 0;
break;
case 3:
homePageIndex = _pageNames.IndexOf(UIPackage.GetVar(buffer.ReadS()));
if (homePageIndex == -1)
homePageIndex = 0;
break;
}
}
buffer.Seek(beginPos, 2);
cnt = buffer.ReadShort();
if (cnt > 0)
{
if (_actions == null)
_actions = new List<ControllerAction>(cnt);
for (int i = 0; i < cnt; i++)
{
int nextPos = buffer.ReadUshort();
nextPos += buffer.position;
ControllerAction action = ControllerAction.CreateAction((ControllerAction.ActionType)buffer.ReadByte());
action.Setup(buffer);
_actions.Add(action);
buffer.position = nextPos;
}
}
if (parent != null && _pageIds.Count > 0)
_selectedIndex = homePageIndex;
else
_selectedIndex = -1;
}
}
}