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using System.Collections.Generic;
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using FairyGUI.Utils;
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using System;
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namespace FairyGUI
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{
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/// <summary>
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/// Controller class.
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/// 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。
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/// 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。
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/// </summary>
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public class Controller : EventDispatcher
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{
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/// <summary>
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/// Name of the controller
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/// 控制器名称。
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/// </summary>
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public string name;
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internal GComponent parent;
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internal bool autoRadioGroupDepth;
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internal bool changing;
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int _selectedIndex;
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int _previousIndex;
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List<string> _pageIds;
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List<string> _pageNames;
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List<ControllerAction> _actions;
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EventListener _onChanged;
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static uint _nextPageId;
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public Controller()
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{
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_pageIds = new List<string>();
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_pageNames = new List<string>();
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_selectedIndex = -1;
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_previousIndex = -1;
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}
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public void Dispose()
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{
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RemoveEventListeners();
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}
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/// <summary>
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/// When controller page changed.
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/// 当控制器活动页面改变时，此事件被触发。
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/// </summary>
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public EventListener onChanged
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{
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get { return _onChanged ?? (_onChanged = new EventListener(this, "onChanged")); }
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}
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/// <summary>
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/// Current page index.
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/// 获得或设置当前活动页面索引。
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/// </summary>
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public int selectedIndex
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{
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get
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{
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return _selectedIndex;
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}
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set
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{
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if (_selectedIndex != value)
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{
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if (value > _pageIds.Count - 1)
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throw new IndexOutOfRangeException("" + value);
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changing = true;
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_previousIndex = _selectedIndex;
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_selectedIndex = value;
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parent.ApplyController(this);
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DispatchEvent("onChanged", null);
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changing = false;
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}
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}
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}
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/// <summary>
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/// Set current page index, no onChanged event.
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/// 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。
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/// </summary>
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/// <param name="value">Page index</param>
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public void SetSelectedIndex(int value)
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{
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if (_selectedIndex != value)
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{
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if (value > _pageIds.Count - 1)
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throw new IndexOutOfRangeException("" + value);
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changing = true;
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_previousIndex = _selectedIndex;
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_selectedIndex = value;
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parent.ApplyController(this);
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changing = false;
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}
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}
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/// <summary>
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/// Set current page by name, no onChanged event.
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/// 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。
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/// </summary>
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/// <param name="value">Page name</param>
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public void SetSelectedPage(string value)
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{
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int i = _pageNames.IndexOf(value);
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if (i == -1)
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i = 0;
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this.SetSelectedIndex(i);
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}
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/// <summary>
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/// Current page name.
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/// 获得当前活动页面名称
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/// </summary>
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public string selectedPage
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{
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get
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{
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if (_selectedIndex == -1)
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return null;
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else
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return _pageNames[_selectedIndex];
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}
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set
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{
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int i = _pageNames.IndexOf(value);
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if (i == -1)
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i = 0;
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this.selectedIndex = i;
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}
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}
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/// <summary>
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/// Previouse page index.
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/// 获得上次活动页面索引
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/// </summary>
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public int previsousIndex
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{
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get { return _previousIndex; }
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}
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/// <summary>
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/// Previous page name.
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/// 获得上次活动页面名称。
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/// </summary>
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public string previousPage
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{
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get
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{
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if (_previousIndex == -1)
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return null;
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else
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return _pageNames[_previousIndex];
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}
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}
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/// <summary>
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/// Page count of this controller.
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/// 获得页面数量。
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/// </summary>
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public int pageCount
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{
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get { return _pageIds.Count; }
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}
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/// <summary>
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/// Get page name by an index.
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/// 通过页面索引获得页面名称。
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/// </summary>
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/// <param name="index">Page index</param>
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/// <returns>Page Name</returns>
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public string GetPageName(int index)
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{
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return _pageNames[index];
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}
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/// <summary>
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/// Get page id by an index.
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/// 通过页面索引获得页面id。
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/// </summary>
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/// <param name="index">Page index</param>
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/// <returns>Page Id</returns>
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public string GetPageId(int index)
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{
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return _pageIds[index];
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}
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/// <summary>
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/// Get page id by name
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/// </summary>
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/// <param name="aName"></param>
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/// <returns></returns>
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public string GetPageIdByName(string aName)
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{
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int i = _pageNames.IndexOf(aName);
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if (i != -1)
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return _pageIds[i];
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else
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return null;
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}
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/// <summary>
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/// Add a new page to this controller.
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/// </summary>
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/// <param name="name">Page name</param>
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public void AddPage(string name)
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{
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if (name == null)
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name = string.Empty;
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AddPageAt(name, _pageIds.Count);
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}
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/// <summary>
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/// Add a new page to this controller at a certain index.
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/// </summary>
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/// <param name="name">Page name</param>
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/// <param name="index">Insert position</param>
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public void AddPageAt(string name, int index)
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{
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string nid = "_" + (_nextPageId++);
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if (index == _pageIds.Count)
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{
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_pageIds.Add(nid);
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_pageNames.Add(name);
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}
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else
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{
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_pageIds.Insert(index, nid);
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_pageNames.Insert(index, name);
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}
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}
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/// <summary>
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/// Remove a page.
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/// </summary>
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/// <param name="name">Page name</param>
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public void RemovePage(string name)
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{
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int i = _pageNames.IndexOf(name);
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if (i != -1)
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{
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_pageIds.RemoveAt(i);
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_pageNames.RemoveAt(i);
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if (_selectedIndex >= _pageIds.Count)
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this.selectedIndex = _selectedIndex - 1;
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else
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parent.ApplyController(this);
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}
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}
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/// <summary>
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/// Removes a page at a certain index.
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/// </summary>
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/// <param name="index"></param>
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public void RemovePageAt(int index)
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{
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_pageIds.RemoveAt(index);
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_pageNames.RemoveAt(index);
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if (_selectedIndex >= _pageIds.Count)
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this.selectedIndex = _selectedIndex - 1;
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else
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parent.ApplyController(this);
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}
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/// <summary>
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/// Remove all pages.
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/// </summary>
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public void ClearPages()
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{
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_pageIds.Clear();
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_pageNames.Clear();
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if (_selectedIndex != -1)
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this.selectedIndex = -1;
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else
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parent.ApplyController(this);
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}
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/// <summary>
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/// Check if the controller has a page.
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/// </summary>
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/// <param name="aName">Page name.</param>
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/// <returns></returns>
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public bool HasPage(string aName)
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{
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return _pageNames.IndexOf(aName) != -1;
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}
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internal int GetPageIndexById(string aId)
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{
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return _pageIds.IndexOf(aId);
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}
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internal string GetPageNameById(string aId)
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{
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int i = _pageIds.IndexOf(aId);
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if (i != -1)
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return _pageNames[i];
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else
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return null;
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}
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internal string selectedPageId
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{
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get
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{
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if (_selectedIndex == -1)
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return string.Empty;
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else
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return _pageIds[_selectedIndex];
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}
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set
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{
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int i = _pageIds.IndexOf(value);
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if (i != -1)
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this.selectedIndex = i;
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}
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}
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internal string oppositePageId
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{
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set
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{
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int i = _pageIds.IndexOf(value);
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if (i > 0)
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this.selectedIndex = 0;
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else if (_pageIds.Count > 1)
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this.selectedIndex = 1;
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}
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}
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internal string previousPageId
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{
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get
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{
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if (_previousIndex == -1)
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return null;
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else
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return _pageIds[_previousIndex];
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}
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}
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public void RunActions()
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{
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if (_actions != null)
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{
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int cnt = _actions.Count;
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for (int i = 0; i < cnt; i++)
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{
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_actions[i].Run(this, previousPageId, selectedPageId);
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}
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}
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}
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public void Setup(ByteBuffer buffer)
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{
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int beginPos = buffer.position;
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buffer.Seek(beginPos, 0);
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name = buffer.ReadS();
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autoRadioGroupDepth = buffer.ReadBool();
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buffer.Seek(beginPos, 1);
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int cnt = buffer.ReadShort();
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_pageIds.Capacity = cnt;
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_pageNames.Capacity = cnt;
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for (int i = 0; i < cnt; i++)
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{
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_pageIds.Add(buffer.ReadS());
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_pageNames.Add(buffer.ReadS());
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}
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int homePageIndex = 0;
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if (buffer.version >= 2)
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{
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int homePageType = buffer.ReadByte();
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switch (homePageType)
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{
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case 1:
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homePageIndex = buffer.ReadShort();
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break;
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case 2:
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homePageIndex = _pageNames.IndexOf(UIPackage.branch);
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if (homePageIndex == -1)
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homePageIndex = 0;
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break;
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case 3:
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homePageIndex = _pageNames.IndexOf(UIPackage.GetVar(buffer.ReadS()));
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if (homePageIndex == -1)
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homePageIndex = 0;
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break;
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}
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}
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buffer.Seek(beginPos, 2);
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cnt = buffer.ReadShort();
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if (cnt > 0)
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{
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if (_actions == null)
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_actions = new List<ControllerAction>(cnt);
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for (int i = 0; i < cnt; i++)
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{
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int nextPos = buffer.ReadUshort();
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nextPos += buffer.position;
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ControllerAction action = ControllerAction.CreateAction((ControllerAction.ActionType)buffer.ReadByte());
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action.Setup(buffer);
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_actions.Add(action);
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buffer.position = nextPos;
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}
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}
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if (parent != null && _pageIds.Count > 0)
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_selectedIndex = homePageIndex;
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else
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_selectedIndex = -1;
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}
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}
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}
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