ToolStripTextBox.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 » ToolStripTextBox.cs
//
// ToolStripTextBox.cs
//
// 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.
//
// Copyright (c) 2006 Jonathan Pobst
//
// Authors:
//  Jonathan Pobst (monkey@jpobst.com)
//
#if NET_2_0
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms.Design;
using System.Runtime.InteropServices;

namespace System.Windows.Forms{
  [ToolStripItemDesignerAvailability (ToolStripItemDesignerAvailability.ToolStrip | ToolStripItemDesignerAvailability.MenuStrip | ToolStripItemDesignerAvailability.ContextMenuStrip)]
  public class ToolStripTextBox : ToolStripControlHost
  {
    private BorderStyle border_style;

    #region Public Constructors
    public ToolStripTextBox () : base (new ToolStripTextBoxControl ())
    {
      ToolStripTextBoxControl text_box = TextBox as ToolStripTextBoxControl;
      text_box.OwnerItem = this;
      text_box.border_style = BorderStyle.None;
      text_box.TopMargin = 3; // need to explicitly set the margin
      text_box.Border = BorderStyle.Fixed3D; // ToolStripTextBoxControl impl, not TextBox
      this.border_style = BorderStyle.Fixed3D;
    }

    [EditorBrowsable (EditorBrowsableState.Never)]
    public ToolStripTextBox (Control c) : base (c)
    {
      throw new NotSupportedException ("This construtor cannot be used.");
    }

    public ToolStripTextBox (string name) : this ()
    {
      base.Name = name;
    }
    #endregion

    #region Public Properties
    [DefaultValue (false)]
    public bool AcceptsReturn {
      get { return this.TextBox.AcceptsReturn; }
      set { this.TextBox.AcceptsReturn = value; }
    }

    [DefaultValue (false)]
    public bool AcceptsTab {
      get { return this.TextBox.AcceptsTab; }
      set { this.TextBox.AcceptsTab = value; }
    }

    [MonoTODO ("AutoCompletion algorithm is currently not implemented.")]
    [Browsable (true)]
    [Localizable (true)]
    [EditorBrowsable (EditorBrowsableState.Always)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [Editor ("System.Windows.Forms.Design.ListControlStringCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
    public AutoCompleteStringCollection AutoCompleteCustomSource {
      get { return this.TextBox.AutoCompleteCustomSource; }
      set { this.TextBox.AutoCompleteCustomSource = value; }
    }
    
    [MonoTODO("AutoCompletion algorithm is currently not implemented.")]
    [Browsable (true)]
    [DefaultValue (AutoCompleteMode.None)]
    [EditorBrowsable (EditorBrowsableState.Always)]
    public AutoCompleteMode AutoCompleteMode {
      get { return this.TextBox.AutoCompleteMode; }
      set { this.TextBox.AutoCompleteMode = value; }
    }

    [MonoTODO("AutoCompletion algorithm is currently not implemented.")]
    [Browsable (true)]
    [DefaultValue (AutoCompleteSource.None)]
    [EditorBrowsable (EditorBrowsableState.Always)]
    public AutoCompleteSource AutoCompleteSource {
      get { return this.TextBox.AutoCompleteSource; }
      set { this.TextBox.AutoCompleteSource = value; }
    }

    [Browsable (false)]
    [EditorBrowsable (EditorBrowsableState.Never)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public override Image BackgroundImage {
      get { return base.BackgroundImage; }
      set { base.BackgroundImage = value; }
    }

    [Browsable (false)]
    [EditorBrowsable (EditorBrowsableState.Never)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public override ImageLayout BackgroundImageLayout {
      get { return base.BackgroundImageLayout; }
      set { base.BackgroundImageLayout = value; }
    }

    [DefaultValue (BorderStyle.Fixed3D)]
    [DispId (-504)]
    public BorderStyle BorderStyle {
      get { return this.border_style; }
      set { 
        if (this.border_style != value) {
          this.border_style = value;
          (base.Control as ToolStripTextBoxControl).Border = value;
          this.OnBorderStyleChanged (EventArgs.Empty);
        }
      }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public bool CanUndo {
      get { return this.TextBox.CanUndo; }
    }

    [DefaultValue (CharacterCasing.Normal)]
    public CharacterCasing CharacterCasing {
      get { return this.TextBox.CharacterCasing; }
      set { this.TextBox.CharacterCasing = value; }
    }

    [DefaultValue (true)]
    public bool HideSelection {
      get { return this.TextBox.HideSelection; }
      set { this.TextBox.HideSelection = value; }
    }

    [Localizable (true)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    [Editor ("System.Windows.Forms.Design.StringArrayEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
    public string[] Lines {
      get { return this.TextBox.Lines; }
      set { this.TextBox.Lines = value; }
    }

    [Localizable (true)]
    [DefaultValue (32767)]
    public int MaxLength {
      get { return this.TextBox.MaxLength; }
      set { this.TextBox.MaxLength = value; }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public bool Modified {
      get { return this.TextBox.Modified; }
      set { this.TextBox.Modified = value; }
    }

    [Localizable (true)]
    [Browsable (false)]
    [EditorBrowsable (EditorBrowsableState.Never)]
    [DefaultValue (false)]
    [RefreshProperties (RefreshProperties.All)]
    public bool Multiline {
      get { return this.TextBox.Multiline; }
      set { this.TextBox.Multiline = value; }
    }

    [DefaultValue (false)]
    public bool ReadOnly {
      get { return this.TextBox.ReadOnly; }
      set { this.TextBox.ReadOnly = value; }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public string SelectedText {
      get { return this.TextBox.SelectedText; }
      set { this.TextBox.SelectedText = value; }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public int SelectionLength {
      get { return this.TextBox.SelectionLength == -1 ? 0 : this.TextBox.SelectionLength; }
      set { this.TextBox.SelectionLength = value; }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public int SelectionStart {
      get { return this.TextBox.SelectionStart; }
      set { this.TextBox.SelectionStart = value; }
    }

    [DefaultValue (true)]
    public bool ShortcutsEnabled {
      get { return this.TextBox.ShortcutsEnabled; }
      set { this.TextBox.ShortcutsEnabled = value; }
    }
    
    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public TextBox TextBox {
      get { return (TextBox)base.Control; }
    }

    [Localizable (true)]
    [DefaultValue (HorizontalAlignment.Left)]
    public HorizontalAlignment TextBoxTextAlign {
      get { return this.TextBox.TextAlign; }
      set { this.TextBox.TextAlign = value; }
    }

    [Browsable (false)]
    public int TextLength {
      get { return this.TextBox.TextLength; }
    }

    [Localizable (true)]
    [Browsable (false)]
    [EditorBrowsable (EditorBrowsableState.Never)]
    [DefaultValue (true)]
    public bool WordWrap {
      get { return this.TextBox.WordWrap; }
      set { this.TextBox.WordWrap = value; }
    }
    #endregion

    #region Protected Properties
    protected internal override Padding DefaultMargin { get { return new Padding (1, 0, 1, 0); } }
    protected override Size DefaultSize { get { return new Size (100, 22); } }
    #endregion

    #region Public Methods
    public void AppendText (string text)
    {
      this.TextBox.AppendText (text);
    }

    public void Clear ()
    {
      this.TextBox.Clear ();
    }

    public void ClearUndo ()
    {
      this.TextBox.ClearUndo ();
    }

    public void Copy ()
    {
      this.TextBox.Copy ();
    }

    public void Cut ()
    {
      this.TextBox.Cut ();
    }

    public void DeselectAll ()
    {
      this.TextBox.DeselectAll ();
    }
    
    public char GetCharFromPosition (Point pt)
    {
      return this.TextBox.GetCharFromPosition (pt);
    }
    
    public int GetCharIndexFromPosition (Point pt)
    {
      return this.TextBox.GetCharIndexFromPosition (pt);
    }
    
    public int GetFirstCharIndexFromLine (int lineNumber)
    {
      return this.TextBox.GetFirstCharIndexFromLine (lineNumber);
    }
    
    public int GetFirstCharIndexOfCurrentLine ()
    {
      return this.TextBox.GetFirstCharIndexOfCurrentLine ();
    }
    
    public int GetLineFromCharIndex (int index)
    {
      return this.TextBox.GetLineFromCharIndex (index);
    }
    
    public Point GetPositionFromCharIndex (int index)
    {
      return this.TextBox.GetPositionFromCharIndex (index);
    }
    
    public override Size GetPreferredSize (Size constrainingSize)
    {
      return base.GetPreferredSize (constrainingSize);
    }

    public void Paste ()
    {
      this.TextBox.Paste ();
    }

    public void ScrollToCaret ()
    {
      this.TextBox.ScrollToCaret ();
    }

    public void Select (int start, int length)
    {
      this.TextBox.Select (start, length);
    }

    public void SelectAll ()
    {
      this.TextBox.SelectAll ();
    }

    public void Undo ()
    {
      this.TextBox.Undo ();
    }
    #endregion

    #region Protected Methods
    protected virtual void OnAcceptsTabChanged (EventArgs e)
    {
      EventHandler eh = (EventHandler)Events [AcceptsTabChangedEvent];
      if (eh != null)
        eh (this, e);
    }

    protected virtual void OnBorderStyleChanged (EventArgs e)
    {
      EventHandler eh = (EventHandler)Events [BorderStyleChangedEvent];
      if (eh != null)
        eh (this, e);
    }

    protected virtual void OnHideSelectionChanged (EventArgs e)
    {
      EventHandler eh = (EventHandler)Events [HideSelectionChangedEvent];
      if (eh != null)
        eh (this, e);
    }

    protected virtual void OnModifiedChanged (EventArgs e)
    {
      EventHandler eh = (EventHandler)Events [ModifiedChangedEvent];
      if (eh != null)
        eh (this, e);
    }

    protected virtual void OnMultilineChanged (EventArgs e)
    {
      EventHandler eh = (EventHandler)Events [MultilineChangedEvent];
      if (eh != null)
        eh (this, e);
    }

    protected virtual void OnReadOnlyChanged (EventArgs e)
    {
      EventHandler eh = (EventHandler)Events [ReadOnlyChangedEvent];
      if (eh != null)
        eh (this, e);
    }

    protected override void OnSubscribeControlEvents (Control control)
    {
      base.OnSubscribeControlEvents (control);

      this.TextBox.AcceptsTabChanged += new EventHandler (HandleAcceptsTabChanged);
      this.TextBox.HideSelectionChanged += new EventHandler (HandleHideSelectionChanged);
      this.TextBox.ModifiedChanged += new EventHandler (HandleModifiedChanged);
      this.TextBox.MultilineChanged += new EventHandler (HandleMultilineChanged);
      this.TextBox.ReadOnlyChanged += new EventHandler (HandleReadOnlyChanged);
      this.TextBox.TextAlignChanged += new EventHandler (HandleTextAlignChanged);
      this.TextBox.TextChanged += new EventHandler (HandleTextChanged);
    }

    protected override void OnUnsubscribeControlEvents (Control control)
    {
      base.OnUnsubscribeControlEvents (control);
    }
    #endregion

    #region Public Events
    static object AcceptsTabChangedEvent = new object ();
    static object BorderStyleChangedEvent = new object ();
    static object HideSelectionChangedEvent = new object ();
    static object ModifiedChangedEvent = new object ();
    static object MultilineChangedEvent = new object ();
    static object ReadOnlyChangedEvent = new object ();
    static object TextBoxTextAlignChangedEvent = new object ();

    public event EventHandler AcceptsTabChanged {
      add { Events.AddHandler (AcceptsTabChangedEvent, value); }
      remove {Events.RemoveHandler (AcceptsTabChangedEvent, value); }
    }
    public event EventHandler BorderStyleChanged {
      add { Events.AddHandler (BorderStyleChangedEvent, value); }
      remove {Events.RemoveHandler (BorderStyleChangedEvent, value); }
    }
    public event EventHandler HideSelectionChanged {
      add { Events.AddHandler (HideSelectionChangedEvent, value); }
      remove {Events.RemoveHandler (HideSelectionChangedEvent, value); }
    }
    public event EventHandler ModifiedChanged {
      add { Events.AddHandler (ModifiedChangedEvent, value); }
      remove {Events.RemoveHandler (ModifiedChangedEvent, value); }
    }
    [Browsable (false)]
    [EditorBrowsable (EditorBrowsableState.Never)]
    public event EventHandler MultilineChanged {
      add { Events.AddHandler (MultilineChangedEvent, value); }
      remove {Events.RemoveHandler (MultilineChangedEvent, value); }
    }
    public event EventHandler ReadOnlyChanged {
      add { Events.AddHandler (ReadOnlyChangedEvent, value); }
      remove {Events.RemoveHandler (ReadOnlyChangedEvent, value); }
    }
    public event EventHandler TextBoxTextAlignChanged {
      add { Events.AddHandler (TextBoxTextAlignChangedEvent, value); }
      remove {Events.RemoveHandler (TextBoxTextAlignChangedEvent, value); }
    }
    #endregion

    #region Private Methods
    private void HandleTextAlignChanged (object sender, EventArgs e)
    {
      EventHandler eh = (EventHandler)(Events [TextBoxTextAlignChangedEvent]);
      if (eh != null)
        eh (this, e);
    }

    private void HandleReadOnlyChanged (object sender, EventArgs e)
    {
      OnReadOnlyChanged (e);
    }

    private void HandleMultilineChanged (object sender, EventArgs e)
    {
      OnMultilineChanged (e);
    }

    private void HandleModifiedChanged (object sender, EventArgs e)
    {
      OnModifiedChanged (e);
    }

    private void HandleHideSelectionChanged (object sender, EventArgs e)
    {
      OnHideSelectionChanged (e);
    }

    private void HandleAcceptsTabChanged (object sender, EventArgs e)
    {
      OnAcceptsTabChanged (e);
    }

    private void HandleTextChanged (object sender, EventArgs e)
    {
      OnTextChanged (e);
    }
    #endregion

    private class ToolStripTextBoxControl : TextBox
    {
      private BorderStyle border;
      private Timer tooltip_timer;
      private ToolTip tooltip_window;
      private ToolStripItem owner_item;
      
      public ToolStripTextBoxControl () : base ()
      {
      }

      protected override void OnLostFocus (EventArgs e)
      {
        base.OnLostFocus (e);
        Invalidate ();
      }
      
      protected override void OnMouseEnter (EventArgs e)
      {
        base.OnMouseEnter (e);
        Invalidate ();

        if (ShowToolTips)
          ToolTipTimer.Start ();

      }

      protected override void OnMouseLeave (EventArgs e)
      {
        base.OnMouseLeave (e);
        Invalidate ();

        ToolTipTimer.Stop ();
        ToolTipWindow.Hide (this);
      }

      internal override void OnPaintInternal (PaintEventArgs e)
      {
        base.OnPaintInternal (e);

        if ((this.Focused || this.Entered || border == BorderStyle.FixedSingle) && border != BorderStyle.None) {
          ToolStripRenderer tsr = (this.Parent as ToolStrip).Renderer;

          if (tsr is ToolStripProfessionalRenderer)
            using (Pen p = new Pen ((tsr as ToolStripProfessionalRenderer).ColorTable.ButtonSelectedBorder))
              e.Graphics.DrawRectangle (p, new Rectangle (0, 0, this.Width - 1, this.Height - 1));
        }
      }
      
      internal BorderStyle Border {
        set {
          border = value;
          Invalidate ();
        }
      }

      internal ToolStripItem OwnerItem {
        set { owner_item = value; }
      }
          
      #region Stuff for ToolTips
      private bool ShowToolTips {
        get {
          if (Parent == null)
            return false;
            
          return (Parent as ToolStrip).ShowItemToolTips;
        }
      }

      private Timer ToolTipTimer {
        get {
          if (tooltip_timer == null) {
            tooltip_timer = new Timer ();
            tooltip_timer.Enabled = false;
            tooltip_timer.Interval = 500;
            tooltip_timer.Tick += new EventHandler (ToolTipTimer_Tick);
          }

          return tooltip_timer;
        }
      }

      private ToolTip ToolTipWindow {
        get {
          if (tooltip_window == null)
            tooltip_window = new ToolTip ();

          return tooltip_window;
        }
      }

      private void ToolTipTimer_Tick (object o, EventArgs args)
      {
        string tooltip = owner_item.GetToolTip ();

        if (!string.IsNullOrEmpty (tooltip))
          ToolTipWindow.Present (this, tooltip);

        ToolTipTimer.Stop ();
      }
      #endregion
    }
  }
}
#endif
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