CheckedListBox.cs :  » 2.6.4-mono-.net-core » System.Windows.Forms » System » Windows » Forms » C# / CSharp Open Source

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C# / CSharp Open Source » 2.6.4 mono .net core » System.Windows.Forms 
System.Windows.Forms » System » Windows » Forms » CheckedListBox.cs
//
// System.Windows.Forms.CheckedListBox.cs
//
// Author:
//   stubbed out by Jaak Simm (jaaksimm@firm.ee)
//  Denis hayes (dennish@raytek.com)
//  Alexandre Pigolkine (pigolkine@gmx.de)
//
// (C) Ximian, Inc., 2002/3
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System.Drawing;
using System.Collections;

namespace System.Windows.Forms{

  /// <summary>
  /// Displays a ListBox in which a check box is displayed to the left of each item.
  /// </summary>

  [MonoTODO]
  public class CheckedListBox : ListBox {

    // private fields
    private bool checkOnClick;
    private bool threeDCheckBoxes;
    private CheckedListBox.CheckedIndexCollection CheckedIndices_ = null;
    private CheckedListBox.CheckedItemCollection CheckedItems_ = null;
    
    // --- Constructor ---
    public CheckedListBox() : base() 
    {
      checkOnClick = false;
      threeDCheckBoxes = true;
      DrawMode_ = DrawMode.Normal;
    }

    internal override void OnObjectCollectionChanged() {
      CheckedIndices_ = null;
      CheckedItems_ = null;
      base.OnObjectCollectionChanged();
    }
    
    // --- CheckedListBox Properties ---
    [MonoTODO]
    public CheckedListBox.CheckedIndexCollection CheckedIndices {
      get {
        if( CheckedIndices_ == null) {
          CheckedIndices_ = new CheckedListBox.CheckedIndexCollection(this);
        }
        return CheckedIndices_; 
      }
    }
    
    [MonoTODO]
    public CheckedListBox.CheckedItemCollection CheckedItems {
      get {
        if( CheckedItems_ == null) {
          CheckedItems_ = new CheckedListBox.CheckedItemCollection(this); 
        }
        return CheckedItems_; 
      }
    }
    
    public bool CheckOnClick {
      get {
        return checkOnClick;
      }
      set {
        checkOnClick = value;
      }
    }
    
    [MonoTODO]
    protected override CreateParams CreateParams {
      get {
        CreateParams createParams = base.CreateParams;
        // set ownerDraw flag to be able to paint check-boxes
        createParams.Style |= (int)ListBoxStyles.LBS_OWNERDRAWFIXED;
        return createParams;
      }    
    }
    
    [MonoTODO]
    public override DrawMode DrawMode {
      get {
        return DrawMode.Normal;
      }
      set {
        // always DrawMode.Normal
      }
    }
    
    [MonoTODO]
    public override int ItemHeight {
      get {
        //FIXME
        return base.ItemHeight;
      }
      set {
        //FIXME
        base.ItemHeight = value;
      }
    }
    
    [MonoTODO]
    public new CheckedListBox.ObjectCollection Items {
      get {
        return (CheckedListBox.ObjectCollection)base.Items; 
      }
    }

    [MonoTODO]
    public new object DataSource { // .NET V1.1 Beta. needs implmented
      get { return base.DataSource; }
      set { base.DataSource = value; }
    }
    
    [MonoTODO]
    public new string DisplayMember { // .NET V1.1 Beta. needs implmented
      get { return base.DisplayMember; }
      set { base.DisplayMember = value; }
    }

    [MonoTODO]
    public new string ValueMember { // .NET V1.1 Beta. needs implmented
      get { return base.DisplayMember; }
      set { base.DisplayMember = value; }
    }

    public override SelectionMode SelectionMode {
      get {
        return base.SelectionMode;
      }
      set {
        if (value!=SelectionMode.One && value!=SelectionMode.None)
          throw new ArgumentException();
        base.SelectionMode=value;
      }
    }
    
    public bool ThreeDCheckBoxes {
      get { return threeDCheckBoxes; }
      set { 
        if( threeDCheckBoxes != value) {
          threeDCheckBoxes = value; 
          Invalidate();
        }
      }
    }
    
    // --- CheckedListBox methods ---
    // following methods only support .NET framework:
    protected virtual void OnItemCheck(ItemCheckEventArgs ice){
      throw new NotImplementedException ();
    }

    protected override void WmReflectCommand(ref Message m){
      throw new NotImplementedException ();
    }

    protected override AccessibleObject CreateAccessibilityInstance() 
    {
      throw new NotImplementedException ();
    }
    
    [MonoTODO]
    protected override ListBox.ObjectCollection CreateItemCollection() {
      return (ListBox.ObjectCollection)(new CheckedListBox.ObjectCollection( this));
    }
    
    [MonoTODO]
    public bool GetItemChecked(int index) 
    {
      return CheckedIndices.Contains(index);
    }
    
    [MonoTODO]
    public CheckState GetItemCheckState(int index) 
    {
      return CheckedIndices.Contains(index) ? CheckState.Checked : CheckState.Unchecked;
    }
    
    // [event methods]
    [MonoTODO]
    protected override void OnBackColorChanged(EventArgs e) 
    {
      //FIXME
      base.OnBackColorChanged(e);
    }
    
    [MonoTODO]
    protected override void OnClick(EventArgs e) 
    {
      //FIXME
      base.OnClick(e);
    }
    
    [MonoTODO]
    protected override void OnDrawItem(DrawItemEventArgs e)
    {
      Rectangle paintBounds = new Rectangle (0, 0, e.Bounds.Width, e.Bounds.Height);
      Bitmap bmp = new Bitmap( paintBounds.Width, paintBounds.Height,e.Graphics);
      Graphics paintOn = Graphics.FromImage(bmp);
      
      paintOn.FillRectangle(SystemBrushes.Window, paintBounds);
      
      Rectangle checkRect = new Rectangle( 0, 0, paintBounds.Height, paintBounds.Height);
      checkRect.Inflate(-1,-1);
      Rectangle textRect = new Rectangle( checkRect.Right, 0, paintBounds.Width - checkRect.Width - 1, paintBounds.Height);
      
      if( (e.State & DrawItemState.Selected) != 0) {
        paintOn.FillRectangle(SystemBrushes.Highlight, textRect);
        paintOn.DrawString(Items_[e.Index].ToString(), Font, SystemBrushes.HighlightText, textRect.X, textRect.Y);
      }
      else {
        paintOn.DrawString(Items_[e.Index].ToString(), Font, SystemBrushes.ControlText, textRect.X, textRect.Y);
      }
    
      ButtonState state = ButtonState.Normal;
      if( !threeDCheckBoxes) {
        state |= ButtonState.Flat;
      }
      
      if( CheckedIndices.Contains(e.Index)) {
        state |= ButtonState.Checked;
      }
      
      ControlPaint.DrawCheckBox (paintOn, checkRect, state);
      
      if( 0 != (DrawItemState.Focus & e.State)) {
        ControlPaint.DrawFocusRectangle (paintOn, textRect);
      }
      e.Graphics.DrawImage(bmp, e.Bounds.Left, e.Bounds.Top, e.Bounds.Width, e.Bounds.Height);
      paintOn.Dispose ();
      bmp.Dispose();
    }
    
    [MonoTODO]
    protected override void OnFontChanged(EventArgs e) 
    {
      //FIXME
      base.OnFontChanged(e);
    }
    
    [MonoTODO]
    protected override void OnHandleCreated(EventArgs e) 
    {
      //FIXME
      base.OnHandleCreated(e);
    }
    
    // only supports .NET framework, thus is not stubbed out
    /*
    [MonoTODO]
    protected virtual void OnItemCheck(ItemCheckEventArgs ice) 
    {
      throw new NotImplementedException ();
    }
    */
    
    [MonoTODO]
    protected override void OnKeyPress(KeyPressEventArgs e) 
    {
      //FIXME
      base.OnKeyPress(e);
    }
    
    [MonoTODO]
    protected override void OnMeasureItem(MeasureItemEventArgs e) 
    {
      //FIXME
      base.OnMeasureItem(e);
    }
    
    [MonoTODO]
    protected override void OnSelectedIndexChanged(EventArgs e) 
    {
      //FIXME
      base.OnSelectedIndexChanged(e);
    }
    // end of [event methods]
    
    [MonoTODO]
    public void SetItemChecked(int index,bool value) 
    {
      SetItemCheckState(index, value ? CheckState.Checked : CheckState.Unchecked);
    }
    
    [MonoTODO]
    public void SetItemCheckState(int index, CheckState value) 
    {
      if( index < 0 || index > Items.Count) {
        // FIXME: Set exception properties
        throw new ArgumentException();
      }

      //bool invalidateControl = false;
      ListBox.ObjectCollection.ListBoxItem item = Items_.getItemAt(index);
      item.Checked_ = value == CheckState.Checked ? true : false;
      CheckedIndices_ = null;
      CheckedItems_ = null;
      // FIXME: Minimize repainting here, invalidate only part on the control ?
      Invalidate();
    }

    internal void listboxSelChange()
    {
      int curSel = Win32.SendMessage(Handle, (int)ListBoxMessages.LB_GETCURSEL, 0, 0);
      //Console.WriteLine("ListBoxNotifications.LBN_SELCHANGE. {0} item is active", curSel);
      // CHECKME: the things work nice w/out call to control, but may be this will be needed.
      //CallControlWndProc(ref m);
      if(checkOnClick || prevSelectedIndex == curSel) {
        SelectedIndex = curSel;
        SetItemChecked(SelectedIndex, !CheckedIndices.Contains(SelectedIndex));
      }
      prevSelectedIndex = curSel;
    }
    
    [MonoTODO]
    protected override void WndProc(ref Message m) 

    {
      //FIXME
      switch ((Msg) m.Msg) {
        case Msg.WM_COMMAND: 
          switch(m.HiWordWParam) {
            case (uint)ListBoxNotifications.LBN_SELCHANGE:
              listboxSelChange();
              m.Result = IntPtr.Zero;
              break;
            case (uint)ListBoxNotifications.LBN_DBLCLK:
              listboxSelChange();
              m.Result = IntPtr.Zero;
              break;
            default:
              base.WndProc(ref m);
              break;
          }
          break;
        default:
          base.WndProc(ref m);
          break;
      }
    }
    
    
    
    
    /// --- CheckedListBox events ---
    /// following events are not stubbed out, because they only support .NET framework:
    /// - public new event EventHandler Click;
    /// - public new event DrawItemEventHandler DrawItem;
    /// - public new event MeasureItemEventHandler MeasureItem;
    public event ItemCheckEventHandler ItemCheck;
    
    /// sub-class: CheckedListBox.CheckedIndexCollection
    /// <summary>
    /// Encapsulates the collection of indexes of checked items (including items in an indeterminate state) in a CheckedListBox.
    /// </summary>
    [MonoTODO]
    public class CheckedIndexCollection : IList, ICollection, IEnumerable {
      CheckedListBox     owner_;
      ArrayList      collection_;
      
      internal CheckedIndexCollection(CheckedListBox owner)
      {
        owner_ = owner;
        collection_ = owner_.Items.CreateCheckedIndexList();
      }
      
      /// --- CheckedIndexCollection Properties ---
      [MonoTODO]
      public int Count {
        get { return collection_.Count; }
      }
      
      [MonoTODO]
      public bool IsReadOnly {
        get { return true; }
      }
      
      [MonoTODO]
      public int this[int index] {
        get { return (int)collection_[index]; }
      }
      
      /// --- ICollection properties ---
      bool IList.IsFixedSize {
        [MonoTODO] get { throw new NotImplementedException(); }
      }
      
      object IList.this[int index] {

        [MonoTODO] get { throw new NotImplementedException(); }
        [MonoTODO] set { ; }
      }
  
      object ICollection.SyncRoot {

        [MonoTODO] get { throw new NotImplementedException(); }
      }
  
      bool ICollection.IsSynchronized {

        [MonoTODO] get { throw new NotImplementedException(); }
      }
      
    
      /// --- CheckedIndexCollection Methods ---
      /// Note: IList methods are stubbed out, otherwise does not IList interface cannot be implemented
      [MonoTODO]
      public bool Contains(int index) 
      {
        return collection_.Contains(index);
      }
      
      [MonoTODO]
      public void CopyTo(Array dest,int index) 
      {
        collection_.CopyTo(dest, index);
      }
      
      [MonoTODO]
      public IEnumerator GetEnumerator() 
      {
        return collection_.GetEnumerator();
      }
      
      [MonoTODO]
      public int IndexOf(int index) 
      {
        return collection_.IndexOf(index);
      }
      
      /// --- CheckedIndexCollection.IList methods ---
      [MonoTODO]
      int IList.Add(object value) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      void IList.Clear() 
      {
        throw new NotImplementedException ();
      }
      
      [MonoTODO]
      bool IList.Contains(object index) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      int IList.IndexOf(object index) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      void IList.Insert(int index,object value) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      void IList.Remove(object value) 
      {
        throw new NotImplementedException ();
      }
      
      [MonoTODO]
      void IList.RemoveAt(int index) 
      {
        throw new NotImplementedException ();
      }
    }  // --- end of CheckedListBox.CheckedIndexCollection ---
    
    
    
    
    /// sub-class: CheckedListBox.CheckedItemCollection
    /// <summary>
    /// Encapsulates the collection of checked items (including items in an indeterminate state) in a CheckedListBox control.
    /// </summary>
    [MonoTODO]
    public class CheckedItemCollection : IList, ICollection, IEnumerable {
      
      CheckedListBox     owner_;
      ArrayList      collection_;
      
      internal CheckedItemCollection(CheckedListBox owner)
      {
        owner_ = owner;
        collection_ = owner_.Items.CreateCheckedItemList();
      }
      
      /// --- CheckedItemCollection Properties ---
      [MonoTODO]
      public int Count {
        get { return collection_.Count; }
      }
      
      [MonoTODO]
      public bool IsReadOnly {
        get { return collection_.IsReadOnly; }
      }

      /// --- ICollection properties ---
      bool IList.IsFixedSize {
        [MonoTODO] get { throw new NotImplementedException (); }
      }

      object IList.this[int index] {
        [MonoTODO] get { throw new NotImplementedException (); }
        [MonoTODO] set { throw new NotImplementedException (); }
      }

      [MonoTODO]
      public object this[int index] {
        get { return collection_[index]; }
        set { throw new NotImplementedException (); }
      }

      object ICollection.SyncRoot {

        [MonoTODO] get { throw new NotImplementedException (); }
      }

      bool ICollection.IsSynchronized {

        [MonoTODO] get { throw new NotImplementedException (); }
      }
      
      
      
      /// --- CheckedItemCollection Methods ---
      /// Note: IList methods are stubbed out, otherwise IList interface cannot be implemented
      [MonoTODO]
      public bool Contains(object item) 
      {
        return collection_.Contains(item);
      }
      
      [MonoTODO]
      public void CopyTo(Array dest,int index) 
      {
        collection_.CopyTo(dest,index);
      }
      
      [MonoTODO]
      public IEnumerator GetEnumerator() 
      {
        return collection_.GetEnumerator();
      }
      
      [MonoTODO]
      public int IndexOf(object item) 
      {
        return collection_.IndexOf(item);
      }
      
      /// --- CheckedItemCollection.IList methods ---
      [MonoTODO]
      int IList.Add(object value) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      void IList.Clear() 
      {
        throw new NotImplementedException ();
      }
      
      [MonoTODO]
      bool IList.Contains(object index) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      int IList.IndexOf(object index) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      void IList.Insert(int index,object value) 
      {
        throw new NotImplementedException ();
      }
    
      [MonoTODO]
      void IList.Remove(object value) 
      {
        throw new NotImplementedException ();
      }
      
      [MonoTODO]
      void IList.RemoveAt(int index) 
      {
        throw new NotImplementedException ();
      }
    }  // --- end of CheckedListBox.CheckedItemCollection ---
    
    /// sub-class: CheckedListBox.ObjectCollection
    /// <summary>
    /// Represents the collection of items in a CheckedListBox.
    /// </summary>
    
    [MonoTODO]
    public new class ObjectCollection : ListBox.ObjectCollection {
      
      /// --- ObjectCollection.constructor ---
      [MonoTODO]
      public ObjectCollection(CheckedListBox owner) :base(owner)
      {
        
      }
      
      /// --- methods ---
      [MonoTODO]
      public int Add(object item,bool isChecked) 
      {
        throw new NotImplementedException ();
      }
      
      [MonoTODO]
      public int Add(object item,CheckState check) 
      {
        throw new NotImplementedException ();
      }
    }
  }
}
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