public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
DataTemplate dt = new DataTemplate();
if (item != null && item is Context)
{
BaseInfoType model = (item as Context).info;
Window window = Application.Current.MainWindow;
if (model.GetInfoType().Equals(BaseInfoType.InfoType.LiteralText))
{
//实例化标签控件
FrameworkElementFactory txtBox = new FrameworkElementFactory(typeof(TextBox));
txtBox.SetBinding(TextBox.TextProperty, new Binding()
{
Path = new PropertyPath("Content"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
txtBox.SetValue(TextBox.ForegroundProperty, Brushes.Black);
txtBox.SetValue(TextBox.HorizontalContentAlignmentProperty, HorizontalAlignment.Center);
dt.VisualTree = txtBox;
}
else if (model.GetInfoType().Equals(BaseInfoType.InfoType.Picture))
{
//实例化图像框控件
FrameworkElementFactory image = new FrameworkElementFactory(typeof(Image));
image.SetBinding(Image.SourceProperty, new Binding()
{
Path = new PropertyPath("Source"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
image.SetValue(Image.StretchProperty, Stretch.Uniform);
dt.VisualTree = image;
}
else
{
//实例化文本控件
FrameworkElementFactory txtBox = new FrameworkElementFactory(typeof(TextBox));
txtBox.SetBinding(TextBox.TextProperty, new Binding()
{
Path = new PropertyPath("Content"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
txtBox.SetValue(TextBox.ForegroundProperty, Brushes.White);
txtBox.SetValue(TextBox.BackgroundProperty, new SolidColorBrush(Colors.Transparent));
dt.VisualTree = txtBox;
}
}
return(dt);
}
public Context(BaseInfoType con)
{
this.info = con;
this.Name = this.info.Name;
this.Content = this.info.ToString();
if (con.GetInfoType().Equals(BaseInfoType.InfoType.Picture))
{
ms = new MemoryStream(con.Data);
ImageBrush imageBrush = new ImageBrush();
ImageSourceConverter imageSourceConverter = new ImageSourceConverter();
this.Source = (ImageSource)imageSourceConverter.ConvertFrom(ms);
//ms.Close();
}
}
public BaseInfo(BaseInfoType type)
{
Type = type;
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
DataTemplate dt = new DataTemplate();
if (item != null && item is Context)
{
BaseInfoType model = (item as Context).info;
MainWindow window = (MainWindow)Application.Current.MainWindow;
if (model.GetInfoType().Equals(BaseInfoType.InfoType.LiteralText))
{
//实例化标签控件
FrameworkElementFactory label = new FrameworkElementFactory(typeof(Label));
label.SetBinding(Label.ContentProperty, new Binding()
{
Path = new PropertyPath("Content"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
label.SetValue(Label.ForegroundProperty, Brushes.Black);
label.SetValue(Label.HorizontalAlignmentProperty, HorizontalAlignment.Center);
TextBlock tb = new TextBlock();
ToolTip tt = new ToolTip();
tb = new TextBlock();
tb.MaxWidth = 700;
tb.TextWrapping = TextWrapping.Wrap;
tt.Content = tb;
label.SetValue(Label.ToolTipProperty, tt);
label.AddHandler(UIElement.MouseMoveEvent, new MouseEventHandler(TemplateLabelEventHandlers.label_MouseMove));
label.AddHandler(UIElement.MouseLeaveEvent, new MouseEventHandler(TemplateLabelEventHandlers.label_MouseLeave));
dt.VisualTree = label;
}
else if (model.GetInfoType().Equals(BaseInfoType.InfoType.Picture))
{
//实例化图像框控件
FrameworkElementFactory image = new FrameworkElementFactory(typeof(Image));
image.SetBinding(Image.SourceProperty, new Binding()
{
Path = new PropertyPath("Source"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
Image im = new Image();
im.MaxWidth = 700;
im.MaxHeight = 700;
im.Stretch = Stretch.Uniform;
im.SetBinding(Image.SourceProperty, new Binding()
{
Path = new PropertyPath("Source"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
ToolTip tt = new ToolTip();
tt.Content = im;
image.SetValue(Image.ToolTipProperty, tt);
image.AddHandler(Image.ToolTipClosingEvent, new ToolTipEventHandler(TemplateImageEventHandlers.toolTip_Closing));
image.SetValue(Image.StretchProperty, Stretch.Uniform);
dt.VisualTree = image;
}
else
{
//实例化文本控件
FrameworkElementFactory txtBox = new FrameworkElementFactory(typeof(TextBox));
txtBox.SetBinding(TextBox.TextProperty, new Binding()
{
Path = new PropertyPath("Content"),
Mode = BindingMode.TwoWay,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
txtBox.SetValue(TextBox.ForegroundProperty, Brushes.White);
txtBox.SetValue(TextBox.BackgroundProperty, new SolidColorBrush(Colors.Transparent));
dt.VisualTree = txtBox;
}
}
return(dt);
}
