Windows/FooEditEngine/AutoCompleteBox.cs

   1 using System;
   2 using System.Linq;
   3 using System.Collections.Generic;
   4 using System.Text;
   5 using System.Windows;
   6 using System.Windows.Forms;
   7 using System.Windows.Input;
   8 using FooEditEngine;
   9
  10 namespace FooEditEngine.Windows
  11 {
  12     /// <summary>
  13     /// 自動補完用クラス
  14     /// </summary>
  15     public class AutoCompleteBox : AutoCompleteBoxBase
  16     {
  17         private string inputedWord;
  18         private ListBox listBox1 = new ListBox();
  19         private Document doc;
  20
  21         /// <summary>
  22         /// コンストラクター
  23         /// </summary>
  24         /// <param name="textbox">対象となるテキストボックス</param>
  25         internal AutoCompleteBox(FooTextBox textbox) : base(textbox.Document)
  26         {
  27             //リストボックスを追加する
  28             this.listBox1.MouseDoubleClick += ListBox1_MouseDoubleClick;
  29             this.listBox1.KeyDown += listBox1_KeyDown;
  30             this.listBox1.Height = 200;
  31             this.listBox1.Visible = false;
  32             textbox.Controls.Add(this.listBox1);
  33             this.doc = textbox.Document;
  34         }
  35
  36         /// <summary>
  37         /// オートコンプリートの対象となる単語のリスト
  38         /// </summary>
  39         public override CompleteCollection<ICompleteItem> Items
  40         {
  41             get
  42             {
  43                 return (CompleteCollection<ICompleteItem>)this.listBox1.DataSource;
  44         }
  45             set
  46             {
  47                 this.listBox1.DisplayMember = CompleteCollection<ICompleteItem>.ShowMember;
  48                 this.listBox1.ValueMember = CompleteCollection<ICompleteItem>.ShowMember;
  49                 this.listBox1.DataSource = value;
  50             }
  51         }
  52
  53         /// <summary>
  54         /// 自動補完リストが表示されているかどうか
  55         /// </summary>
  56         protected override bool IsCloseCompleteBox
  57         {
  58             get
  59             {
  60                 return !this.listBox1.Visible;
  61             }
  62         }
  63
  64         /// <summary>
  65         /// 補完候補の表示要求を処理する
  66         /// </summary>
  67         /// <param name="ev"></param>
  68         protected override void RequestShowCompleteBox(ShowingCompleteBoxEventArgs ev)
  69         {
  70             this.inputedWord = ev.inputedWord;
  71             this.listBox1.SelectedItem = ((CompleteCollection<ICompleteItem>)this.listBox1.DataSource)[ev.foundIndex];
  72             this.listBox1.Visible = true;
  73             this.listBox1.Location = ev.CaretPostion;
  74         }
  75
  76         /// <summary>
  77         /// 補完候補の非表示要求を処理する
  78         /// </summary>
  79         protected override void RequestCloseCompleteBox()
  80         {
  81             this.listBox1.Visible = false;
  82         }
  83
  84         internal bool ProcessKeyPress(FooTextBox textbox, KeyPressEventArgs e)
  85         {
  86             if (this.isReqForceComplete && e.KeyChar == ' ')
  87             {
  88                 this.OpenCompleteBox(string.Empty);
  89                 return true;
  90             } else if (!this.IsCloseCompleteBox && (e.KeyChar == '\r')){
  91                 this.RequestCloseCompleteBox();
  92                 CompleteWord selWord = (CompleteWord)this.listBox1.SelectedItem;
  93                 this.SelectItem(this, new SelectItemEventArgs(selWord, this.inputedWord, this.Document));
  94                 textbox.Refresh();
  95                 return true;
  96             }
  97             return false;
  98         }
  99
 100         bool isReqForceComplete = false;
 101
 102         internal bool ProcessKeyDown(FooTextBox textbox, KeyEventArgs e,bool isCtrl,bool isShift)
 103         {
 104             if (this.IsCloseCompleteBox)
 105             {
 106                 if (e.KeyCode == Keys.Space && isCtrl)
 107                 {
 108                     this.isReqForceComplete = true;
 109                     return true;
 110                 }
 111                 return false;
 112             }
 113
 114             switch (e.KeyCode)
 115             {
 116                 case Keys.Escape:
 117                     this.RequestCloseCompleteBox();
 118                     textbox.Focus();
 119                     return true;
 120                 case Keys.Down:
 121                     if (this.listBox1.SelectedIndex + 1 >= this.listBox1.Items.Count)
 122                         this.listBox1.SelectedIndex = this.listBox1.Items.Count - 1;
 123                     else
 124                         this.listBox1.SelectedIndex++;
 125                     return true;
 126                 case Keys.Up:
 127                     if (this.listBox1.SelectedIndex - 1 < 0)
 128                         this.listBox1.SelectedIndex = 0;
 129                     else
 130                         this.listBox1.SelectedIndex--;
 131                     return true;
 132                 case Keys.Tab:
 133                     this.RequestCloseCompleteBox();
 134                     CompleteWord selWord = (CompleteWord)this.listBox1.SelectedItem;
 135                     this.SelectItem(this, new SelectItemEventArgs(selWord, this.inputedWord, this.Document));
 136                     textbox.Refresh();
 137                     return true;
 138             }
 139
 140             return false;
 141         }
 142
 143         private void ListBox1_MouseDoubleClick(object sender, MouseEventArgs e)
 144         {
 145             this.listBox1.Visible = false;
 146             CompleteWord selWord = (CompleteWord)this.listBox1.SelectedItem;
 147             this.SelectItem(this, new SelectItemEventArgs(selWord, this.inputedWord, this.Document));
 148         }
 149
 150         void listBox1_KeyDown(object sender, KeyEventArgs e)
 151         {
 152             if (e.KeyCode == Keys.Enter)
 153             {
 154                 this.listBox1.Visible = false;
 155                 CompleteWord selWord = (CompleteWord)this.listBox1.SelectedItem;
 156                 this.SelectItem(this, new SelectItemEventArgs(selWord, this.inputedWord, this.Document));
 157                 e.Handled = true;
 158             }
 159         }
 160     }
 161 }