677 lines
15 KiB
C#

using System;
using System.ComponentModel;
using System.Data.SqlTypes;
using System.Drawing;
using System.Windows.Forms;
using DevComponents.DotNetBar.Controls;
using DevComponents.DotNetBar.SuperGrid.Style;
namespace DevComponents.DotNetBar.SuperGrid
{
///<summary>
/// GridCheckBoxEditControl
///</summary>
[ToolboxItem(false)]
public class GridCheckBoxXEditControl : CheckBoxX, IGridCellEditControl
{
#region Private variables
private GridCell _Cell;
private EditorPanel _EditorPanel;
private Bitmap _EditorCellBitmap;
private bool _ValueChanged;
private bool _SuspendUpdate;
private StretchBehavior _StretchBehavior = StretchBehavior.None;
#endregion
///<summary>
/// GridCheckBoxXEditControl
///</summary>
public GridCheckBoxXEditControl()
{
CheckValueChecked = null;
CheckValueUnchecked = null;
Text = "";
CheckedChanged += ControlCheckedChanged;
}
#region ControlCheckedChanged
private void ControlCheckedChanged(object sender, EventArgs e)
{
if (_SuspendUpdate == false)
{
if (CheckState == CheckState.Checked)
{
_Cell.Value = (CheckValueChecked ?? true);
}
else if (CheckState == CheckState.Unchecked)
{
_Cell.Value = (CheckValueUnchecked ?? false);
}
else
{
_Cell.Value = CheckValueIndeterminate;
}
_Cell.EditorValueChanged(this);
}
}
#endregion
#region OnInvalidated
/// <summary>
/// OnInvalidated
/// </summary>
/// <param name="e"></param>
protected override void OnInvalidated(InvalidateEventArgs e)
{
base.OnInvalidated(e);
if (_Cell != null && _SuspendUpdate == false)
_Cell.InvalidateRender();
}
#endregion
#region OnPaint
/// <summary>
/// OnPaint
/// </summary>
/// <param name="e"></param>
protected override void OnPaint(PaintEventArgs e)
{
_Cell.PaintEditorBackground(e, this);
PaintControl(e);
}
#endregion
#region Text
/// <summary>
/// Text
/// </summary>
public override string Text
{
get { return (base.Text); }
set
{
if (string.IsNullOrEmpty(value))
{
value = "";
TextVisible = false;
}
else
{
TextVisible = true;
}
base.Text = value;
}
}
#endregion
#region GetValue
///<summary>
/// GetValue
///</summary>
///<param name="value"></param>
///<returns></returns>
///<exception cref="Exception"></exception>
public virtual CheckState GetValue(object value)
{
GridPanel panel = _Cell.GridPanel;
if (value == null ||
(panel.NullValue == NullValue.DBNull && value == DBNull.Value))
{
return (ThreeState ? CheckState.Indeterminate : CheckState.Unchecked);
}
Type type = value.GetType();
if (CheckValueChecked != null)
{
if (value.Equals(CheckValueChecked))
return (CheckState.Checked);
}
if (CheckValueUnchecked != null)
{
if (value.Equals(CheckValueUnchecked))
return (CheckState.Unchecked);
}
if (type == typeof (bool))
return ((bool) value ? CheckState.Checked : CheckState.Unchecked);
if (type == typeof (string))
{
string s = (string) value;
if (_Cell.IsValueExpression == true)
s = _Cell.GetExpValue(s);
switch (s.ToLower())
{
case "y":
case "yes":
case "t":
case "true":
case "1":
return (CheckState.Checked);
case "":
case "0":
case "n":
case "no":
case "f":
case "false":
return (CheckState.Unchecked);
}
}
else if (type == typeof (SqlBoolean))
{
SqlBoolean sb = (SqlBoolean) value;
if (sb.IsNull == true)
return (ThreeState ? CheckState.Indeterminate : CheckState.Unchecked);
return (sb.IsTrue ? CheckState.Checked : CheckState.Unchecked);
}
else if (type == typeof(char))
{
char c = (char)value;
switch (Char.ToLower(c))
{
case 't':
case 'y':
case '1':
return (CheckState.Checked);
case 'f':
case 'n':
case '0':
return (CheckState.Unchecked);
}
}
else
{
int n = Convert.ToInt32(value);
return (n == 0 ? CheckState.Unchecked : CheckState.Checked);
}
throw new Exception("Invalid checkBox cell value (" + value + ").");
}
#endregion
#region IGridCellEditControl Members
#region Public properties
#region CanInterrupt
/// <summary>
/// CanInterrupt
/// </summary>
public bool CanInterrupt
{
get { return (true); }
}
#endregion
#region CellEditMode
/// <summary>
/// CellEditMode
/// </summary>
public CellEditMode CellEditMode
{
get { return (CellEditMode.InPlace); }
}
#endregion
#region EditorCell
/// <summary>
/// EditorCell
/// </summary>
public GridCell EditorCell
{
get { return (_Cell); }
set { _Cell = value; }
}
#endregion
#region EditorCellBitmap
///<summary>
/// EditorCellBitmap
///</summary>
public Bitmap EditorCellBitmap
{
get { return (_EditorCellBitmap); }
set
{
if (_EditorCellBitmap != null)
_EditorCellBitmap.Dispose();
_EditorCellBitmap = value;
}
}
#endregion
#region EditorFormattedValue
///<summary>
/// EditorFormattedValue
///</summary>
public virtual string EditorFormattedValue
{
get
{
if (_Cell != null && _Cell.IsValueNull == true)
return (_Cell.NullString);
return (EditorValue.ToString());
}
}
#endregion
#region EditorPanel
/// <summary>
/// EditorPanel
/// </summary>
public EditorPanel EditorPanel
{
get { return (_EditorPanel); }
set { _EditorPanel = value; }
}
#endregion
#region EditorValue
/// <summary>
/// EditorValue
/// </summary>
public virtual object EditorValue
{
get { return (CheckState); }
set { CheckState = GetValue(value); }
}
#endregion
#region EditorValueChanged
/// <summary>
/// EditorValueChanged
/// </summary>
public virtual bool EditorValueChanged
{
get { return (_ValueChanged); }
set
{
if (_ValueChanged != value)
{
_ValueChanged = value;
if (value == true)
_Cell.SetEditorDirty(this);
}
}
}
#endregion
#region EditorValueType
///<summary>
/// EditorValueType
///</summary>
public virtual Type EditorValueType
{
get { return (typeof(bool)); }
}
#endregion
#region StretchBehavior
/// <summary>
/// StretchBehavior
/// </summary>
public virtual StretchBehavior StretchBehavior
{
get { return (_StretchBehavior); }
set { _StretchBehavior = value; }
}
#endregion
#region SuspendUpdate
/// <summary>
/// SuspendUpdate
/// </summary>
public bool SuspendUpdate
{
get { return (_SuspendUpdate); }
set { _SuspendUpdate = value; }
}
#endregion
#region ValueChangeBehavior
/// <summary>
/// ValueChangeBehavior
/// </summary>
public virtual ValueChangeBehavior ValueChangeBehavior
{
get { return (ValueChangeBehavior.InvalidateRender); }
}
#endregion
#endregion
#region InitializeContext
///<summary>
/// InitializeContext
///</summary>
///<param name="cell"></param>
///<param name="style"></param>
public virtual void InitializeContext(GridCell cell, CellVisualStyle style)
{
_Cell = cell;
if (style != null)
{
Enabled = (_Cell.IsReadOnly == false);
Font = style.Font;
ForeColor = style.TextColor;
}
CheckState = GetValue(_Cell.Value);
_ValueChanged = false;
}
#endregion
#region GetProposedSize
///<summary>
/// GetProposedSize
///</summary>
///<param name="g"></param>
///<param name="cell"></param>
///<param name="style"></param>
///<param name="constraintSize"></param>
///<returns></returns>
public virtual Size GetProposedSize(Graphics g,
GridCell cell, CellVisualStyle style, Size constraintSize)
{
HostItem.RecalcSize();
Size size = HostItem.Size;
if (TextVisible == false)
{
// RadioButtons are not actually 13 - they are 14, even
// though the system thinks they are 13.
if (CheckBoxStyle == eCheckBoxStyle.RadioButton)
size.Height += Dpi.Height1;
if (size.Width < size.Height)
size.Width = size.Height;
}
return (size);
}
#endregion
#region Edit support
#region BeginEdit
/// <summary>
/// BeginEdit
/// </summary>
/// <param name="selectAll"></param>
/// <returns></returns>
public virtual bool BeginEdit(bool selectAll)
{
return (false);
}
#endregion
#region EndEdit
/// <summary>
/// EndEdit
/// </summary>
/// <returns></returns>
public virtual bool EndEdit()
{
return (false);
}
#endregion
#region CancelEdit
/// <summary>
/// CancelEdit
/// </summary>
/// <returns></returns>
public virtual bool CancelEdit()
{
return (false);
}
#endregion
#endregion
#region CellRender
/// <summary>
/// CellRender
/// </summary>
/// <param name="g"></param>
public virtual void CellRender(Graphics g)
{
_Cell.CellRender(this, g);
}
#endregion
#region Keyboard support
#region CellKeyDown
///<summary>
/// CellKeyDown
///</summary>
public virtual void CellKeyDown(KeyEventArgs e)
{
switch (e.KeyData)
{
case Keys.T:
case Keys.Y:
if (Checked == false)
Checked = true;
break;
case Keys.F:
case Keys.N:
if (Checked == true)
Checked = false;
break;
default:
OnKeyDown(e);
break;
}
}
#endregion
#region WantsInputKey
/// <summary>
/// WantsInputKey
/// </summary>
/// <param name="key"></param>
/// <param name="gridWantsKey"></param>
/// <returns></returns>
public virtual bool WantsInputKey(Keys key, bool gridWantsKey)
{
switch (key & Keys.KeyCode)
{
case Keys.T:
case Keys.F:
case Keys.Y:
case Keys.N:
case Keys.Space:
return (true);
default:
return (gridWantsKey == false);
}
}
#endregion
#endregion
#region Mouse support
#region OnCellMouseMove
///<summary>
/// OnCellMouseMove
///</summary>
///<param name="e"></param>
public virtual void OnCellMouseMove(MouseEventArgs e)
{
OnMouseMove(e);
}
#endregion
#region OnCellMouseEnter
///<summary>
/// OnCellMouseEnter
///</summary>
///<param name="e"></param>
public virtual void OnCellMouseEnter(EventArgs e)
{
OnMouseEnter(e);
}
#endregion
#region OnCellMouseLeave
///<summary>
/// OnCellMouseLeave
///</summary>
///<param name="e"></param>
public virtual void OnCellMouseLeave(EventArgs e)
{
OnMouseLeave(e);
}
#endregion
#region OnCellMouseUp
///<summary>
/// OnCellMouseUp
///</summary>
///<param name="e"></param>
public virtual void OnCellMouseUp(MouseEventArgs e)
{
eCheckBoxStyle style = CheckBoxStyle;
CheckBoxStyle = eCheckBoxStyle.CheckBox;
try
{
OnMouseUp(e);
}
finally
{
CheckBoxStyle = style;
}
}
#endregion
#region OnCellMouseDown
///<summary>
/// OnCellMouseDown
///</summary>
///<param name="e"></param>
public virtual void OnCellMouseDown(MouseEventArgs e)
{
OnMouseDown(e);
}
#endregion
#endregion
#endregion
#region Dispose
/// <summary>
/// Dispose
/// </summary>
/// <param name="disposing"></param>
protected override void Dispose(bool disposing)
{
CheckedChanged -= ControlCheckedChanged;
base.Dispose(disposing);
}
#endregion
}
}