Unity运行模式用GUILayout实现ComboBox
public class ComboBox
{
public int index;//索引
public string weight="";//权重
private int labelWidth = 60;//标题的宽
public float Weight
{
get { return float.Parse(weight); }
}
/// <summary>
/// 复选框的宽度
/// </summary>
public const int WIDTH = 150;
/// <summary>
/// 复选框的高度
/// </summary>
public const int Height = 20;
/// <summary>
/// Lable
/// </summary>
public string label = "";
public int viewAreaHeight = 200;
public ComboBox(Dictionary<object, object> dataSource,int viewHeight = 200)
{
if (dataSource == null)
{
dataSource = new Dictionary<object, object>();
for (int i = 0; i < 50; i++)
{
dataSource.Add(i, string.Format("<color=#ff0000ff>请初始化数据 {0}</color>" ,i));
}
}
viewAreaHeight = viewHeight;
this.Init(dataSource,1);
}
private Dictionary<object, object> dataSource;
private object currentValue;
private object currentDisplayText;
private int currentIndex;
private bool showList;
private Vector2 scrollPosition;
private float showListTime;
private int guiDepth;
private bool alreadyInitGuiDepth;
/// <summary>
/// 选择项更改事件参数
/// </summary>
public class SelectItemChangedArgs : EventArgs
{
private object itemValue;
private object itemDisplayText;
public object ItemValue
{
get
{
return itemValue;
}
}
public object ItemDisplayText
{
get
{
return itemDisplayText;
}
}
public SelectItemChangedArgs(object iValue, object iDisplayText)
{
itemValue = iValue;
itemDisplayText = iDisplayText;
}
}
/// <summary>
/// 选择项更改事件
/// </summary>
public event EventHandler<SelectItemChangedArgs> OnSelectItemChanged;
public object SelectValue
{
get { return currentValue; }
}
public object SelectDisplayText
{
get { return currentDisplayText; }
}
public float ShowListTime
{
get { return showListTime; }
}
/// <summary>
/// 数据源
/// </summary>
public Dictionary<object, object> DataSource
{
set
{
dataSource = value;
currentDisplayText = null;
currentValue = null;
}
get
{
return dataSource;
}
}
/// <summary>
/// 初始化各项参数,控件应该只调用一次此方法,进行重置数据源直接使用DataSource属性即可
/// </summary>
/// <param name="data">
/// A <see cref="Dictionary<System.Object, System.Object>"/>
/// </param>
/// <param name="depth">
/// A <see cref="System.Int32"/>
/// </param>
public void Init(Dictionary<object, object> data, int depth)
{
dataSource = data;
currentIndex = -1;
//将控件置于当前GUI元素之上,并且只在第一次调用初始化方法设置GUI深度,防止循环中重复调用
if (!alreadyInitGuiDepth)
{
//guiDepth = GUI.depth - 1;
alreadyInitGuiDepth = true;
}
currentDisplayText = null;
currentValue = null;
}
/// <summary>
/// 强行设置下拉列表是否是示
/// </summary>
/// <param name="show">
/// A <see cref="System.Boolean"/>
/// </param>
public void SetShowList(bool show)
{
if (showList)
{
showList = show;
}
}
/// <summary>
/// 绘制下拉列表框
/// </summary>
public void Draw()
{
if (dataSource == null)
{
return;
}
if (currentDisplayText == null || currentValue == null)
{
if (dataSource.Count > 0)
{
currentDisplayText = dataSource.Values.First();
currentValue = dataSource.Keys.First();
currentIndex = 0;
}
else
{
currentDisplayText = "无";
currentValue = -1;
currentIndex = -1;
}
}
GUILayout.BeginVertical(GUILayout.Width(WIDTH));
GUILayout.BeginHorizontal();
int spaceW = labelWidth;
if (label == null || label.Equals(""))
{
spaceW = 0;
}
GUILayout.Label(label, GUILayout.Width(spaceW));
string buttonName = "";
if(currentDisplayText == null)
{
buttonName = "无";
}else if(currentDisplayText is monster_model)
{
buttonName = ((monster_model)currentDisplayText).name;
}else if(currentDisplayText is string)
{
buttonName = currentDisplayText.ToString();
}
buttonName += (showList ? " <color=#f27272FF>></color>" : " <color=#f27272FF>V</color>");
if (GUILayout.Button(buttonName,GUILayout.Width(WIDTH + 20)))
{
showList = !showList;
if (showList)
{
showListTime = Time.time;
}
else
{
showListTime = 0f;
}
}
GUILayout.EndHorizontal();
this.DrawList();
GUILayout.EndVertical();
}
/// <summary>
/// 绘制列表项
/// </summary>
public void DrawList()
{
if (showList == true)
{
//为了留出最方下的横线,这里高度减1
GUILayout.BeginHorizontal();
int spaceW = labelWidth;
if (label == null || label.Equals(""))
{
spaceW = 0;
}
GUILayout.Label("", GUILayout.Width(spaceW));
scrollPosition = Vector2.Lerp(scrollPosition, GUILayout.BeginScrollView(scrollPosition, true, true,GUILayout.Width(WIDTH+20),GUILayout.Height(this.viewAreaHeight)), 0.5f);
for (int i = 0; i < dataSource.Count; i++)
{
drawItem(i);
}
GUILayout.EndScrollView();
GUILayout.EndHorizontal();
}
}
/// <summary>
/// 绘制内容项,并响应事件
/// </summary>
/// <param name="index">
/// A <see cref="System.Int32"/>
/// </param>
private void drawItem(int index)
{
object value = dataSource.Values.ElementAt(index);
string buttonName = value as string;
if(value is monster_model)
{
buttonName = ((monster_model)value).name;
}
if (GUILayout.Button(buttonName,GUILayout.Width(WIDTH)))
{
if(value is monster_model)
{
currentDisplayText = ((monster_model)value).name;
currentValue = dataSource.Keys.ElementAt(index);
}
else
{
currentDisplayText = value;
currentValue = dataSource.Keys.ElementAt(index);
}
if (currentIndex != index)
{
currentIndex = index;
if (OnSelectItemChanged != null)
{
if(value is monster_model)
{
OnSelectItemChanged(this, new SelectItemChangedArgs(currentValue, value));
}
else
{
OnSelectItemChanged(this, new SelectItemChangedArgs(currentValue, currentDisplayText));
}
}
}
showList = false;
}
}
public void OnGUI()
{
GUI.depth = guiDepth;
this.Draw();
}
/// <summary>
/// 按时间比较各ComboBox控件的顺序,初衷是为了点击新的控件时,其它ComboBox控件下拉列表自动隐藏
/// </summary>
public class ShowListComparer : IComparer<ComboBox>
{
#region IComparer[ComboBox] implementation
int IComparer<ComboBox>.Compare(ComboBox x, ComboBox y)
{
return x.showListTime.CompareTo(y.showListTime) * -1;
}
#endregion
}
}
先说明一下：这个功能是在一位大神的GUI的代码基础上修改的，这样就可以自动排版了，不过已经忘了是哪位了。
