CyberX8/Framework/OpenControl/OpenSEMI.Ctrlib.Controls/EditTextBlock.cs

using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;

namespace OpenSEMI.Ctrlib.Controls
{
	public class EditTextBlock : TextBlock
	{
		public static readonly DependencyProperty IsInEditModeProperty;

		public static readonly DependencyProperty EditBoxModeProperty;

		private bool m_AllowEmpty = true;

		private bool m_AllowBackgroundChange = false;

		public static readonly DependencyProperty MaxValueProperty;

		public static readonly DependencyProperty MinValueProperty;

		public static readonly DependencyProperty AccuracyProperty;

		public static readonly DependencyProperty TextSavedProperty;

		public static readonly DependencyProperty ScrollToEndProperty;

		private EditTextBlockAdorner _adorner;

		public bool IsInEditMode
		{
			get
			{
				return (bool)GetValue(IsInEditModeProperty);
			}
			set
			{
				SetValue(IsInEditModeProperty, value);
			}
		}

		public EditBoxMode EditBoxMode
		{
			get
			{
				return (EditBoxMode)GetValue(EditBoxModeProperty);
			}
			set
			{
				SetValue(EditBoxModeProperty, value);
			}
		}

		public bool AllowEmpty
		{
			get
			{
				return m_AllowEmpty;
			}
			set
			{
				m_AllowEmpty = value;
			}
		}

		public bool AllowBackgroundChange
		{
			get
			{
				return m_AllowBackgroundChange;
			}
			set
			{
				m_AllowBackgroundChange = value;
			}
		}

		public double MaxValue
		{
			get
			{
				return (double)GetValue(MaxValueProperty);
			}
			set
			{
				SetValue(MaxValueProperty, value);
			}
		}

		public double MinValue
		{
			get
			{
				return (double)GetValue(MinValueProperty);
			}
			set
			{
				SetValue(MinValueProperty, value);
			}
		}

		public int Accuracy
		{
			get
			{
				return (int)GetValue(AccuracyProperty);
			}
			set
			{
				SetValue(AccuracyProperty, value);
			}
		}

		public bool TextSaved
		{
			get
			{
				return (bool)GetValue(TextSavedProperty);
			}
			set
			{
				SetValue(TextSavedProperty, value);
			}
		}

		public bool IsScrollToEnd
		{
			get
			{
				return (bool)GetValue(ScrollToEndProperty);
			}
			set
			{
				SetValue(ScrollToEndProperty, value);
			}
		}

		static EditTextBlock()
		{
			IsInEditModeProperty = DependencyProperty.Register("IsInEditMode", typeof(bool), typeof(EditTextBlock), new UIPropertyMetadata(false, IsInEditModeUpdate));
			EditBoxModeProperty = DependencyProperty.Register("EditBoxMode", typeof(EditBoxMode), typeof(EditTextBlock), new UIPropertyMetadata(EditBoxMode.Default));
			MaxValueProperty = DependencyProperty.Register("MaxValue", typeof(double), typeof(EditTextBlock), new UIPropertyMetadata(double.NaN));
			MinValueProperty = DependencyProperty.Register("MinValue", typeof(double), typeof(EditTextBlock), new UIPropertyMetadata(double.NaN));
			AccuracyProperty = DependencyProperty.Register("Accuracy", typeof(int), typeof(EditTextBlock), new UIPropertyMetadata(4));
			TextSavedProperty = DependencyProperty.Register("TextSaved", typeof(bool), typeof(EditTextBlock), new UIPropertyMetadata(true, TextSavedChangedCallBack));
			ScrollToEndProperty = DependencyProperty.Register("IsScrollToEnd", typeof(bool), typeof(EditTextBlock), new UIPropertyMetadata(false));
			FrameworkElement.DefaultStyleKeyProperty.OverrideMetadata(typeof(EditTextBlock), new FrameworkPropertyMetadata(typeof(EditTextBlock)));
		}

		private static void IsInEditModeUpdate(DependencyObject obj, DependencyPropertyChangedEventArgs e)
		{
			EditTextBlock editTextBlock = obj as EditTextBlock;
			if (editTextBlock != null)
			{
				AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(editTextBlock);
				if (adornerLayer != null)
				{
					if (editTextBlock.IsInEditMode)
					{
						if (editTextBlock._adorner == null)
						{
							editTextBlock._adorner = new EditTextBlockAdorner(editTextBlock);
							editTextBlock._adorner.TextBoxKeyUp += editTextBlock.TextBoxKeyUp;
							editTextBlock._adorner.TextBoxLostFocus += editTextBlock.TextBoxLostFocus;
						}
						adornerLayer.Add(editTextBlock._adorner);
					}
					else
					{
						Adorner[] adorners = adornerLayer.GetAdorners(editTextBlock);
						if (adorners != null)
						{
							Adorner[] array = adorners;
							foreach (Adorner adorner in array)
							{
								if (adorner is EditTextBlockAdorner)
								{
									adornerLayer.Remove(adorner);
								}
							}
						}
					}
				}
			}
		}

		private void TextBoxLostFocus(object sender, RoutedEventArgs e)
		{
			IsInEditMode = false;
			TextBoxEx textBoxEx = sender as TextBoxEx;
			if (textBoxEx != null && (EditBoxMode == EditBoxMode.Decimal || EditBoxMode == EditBoxMode.UnSignDecimal || EditBoxMode == EditBoxMode.SignInteger || EditBoxMode == EditBoxMode.UnSignInteger))
			{
				double result = 0.0;
				if (double.TryParse(textBoxEx.Text, out result) && (MinValue != MaxValue || MinValue != 0.0))
				{
					base.Background = ((result < MinValue || result > MaxValue) ? Brushes.Red : Brushes.Transparent);
				}
			}
		}

		private void TextBoxKeyUp(object sender, KeyEventArgs e)
		{
			if (e.Key == Key.Return)
			{
				IsInEditMode = false;
				TextBoxEx textBoxEx = sender as TextBoxEx;
				if (textBoxEx != null && (EditBoxMode == EditBoxMode.Decimal || EditBoxMode == EditBoxMode.UnSignDecimal || EditBoxMode == EditBoxMode.SignInteger || EditBoxMode == EditBoxMode.UnSignInteger))
				{
					double result = 0.0;
					if (double.TryParse(textBoxEx.Text, out result) && (MinValue != MaxValue || MinValue != 0.0))
					{
						base.Background = ((result < MinValue || result > MaxValue) ? Brushes.Red : Brushes.Transparent);
					}
				}
			}
		}

		protected override void OnMouseDown(MouseButtonEventArgs e)
		{
			if (e.MiddleButton == MouseButtonState.Pressed)
			{
				IsInEditMode = true;
			}
			else if (e.ClickCount == 1)
			{
				IsInEditMode = true;
			}
		}

		private static void TextSavedChangedCallBack(DependencyObject d, DependencyPropertyChangedEventArgs args)
		{
			EditTextBlock editTextBlock = d as EditTextBlock;
			if (editTextBlock == null)
			{
				return;
			}
		}
	}
}