diff options
Diffstat (limited to 'Software/Visual_Studio/Tango.SharedUI')
3 files changed, 180 insertions, 1 deletions
diff --git a/Software/Visual_Studio/Tango.SharedUI/Components/LazyBinding.cs b/Software/Visual_Studio/Tango.SharedUI/Components/LazyBinding.cs new file mode 100644 index 000000000..e8e22d182 --- /dev/null +++ b/Software/Visual_Studio/Tango.SharedUI/Components/LazyBinding.cs @@ -0,0 +1,160 @@ +using System; +using System.ComponentModel; +using System.Globalization; +using System.Windows; +using System.Windows.Data; +using System.Windows.Markup; + +namespace Tango.SharedUI.Components +{ + [MarkupExtensionReturnType(typeof(object))] + public class LazyBindingExtension : MarkupExtension + { + public LazyBindingExtension() + { } + + public LazyBindingExtension(PropertyPath path) : this() + { + Path = path; + } + + #region Properties + + public IValueConverter Converter { get; set; } + [TypeConverter(typeof(CultureInfoIetfLanguageTagConverter))] + public CultureInfo ConverterCulture { get; set; } + public object ConverterParamter { get; set; } + public string ElementName { get; set; } + [ConstructorArgument("path")] + public PropertyPath Path { get; set; } + public RelativeSource RelativeSource { get; set; } + public object Source { get; set; } + public UpdateSourceTrigger UpdateSourceTrigger { get; set; } + public bool ValidatesOnDataErrors { get; set; } + public bool ValidatesOnExceptions { get; set; } + public bool ValidatesOnNotifyDataErrors { get; set; } + + private Binding binding; + private UIElement bindingTarget; + private DependencyProperty bindingTargetProperty; + + #endregion + + #region Init + + public override object ProvideValue(IServiceProvider serviceProvider) + { + var valueProvider = serviceProvider.GetService(typeof(IProvideValueTarget)) as IProvideValueTarget; + if (valueProvider != null) + { + bindingTarget = valueProvider.TargetObject as UIElement; + + if (bindingTarget == null) + { + throw new NotSupportedException($"Target '{valueProvider.TargetObject}' is not valid for a LazyBinding. The LazyBinding target must be a UIElement."); + } + + bindingTargetProperty = valueProvider.TargetProperty as DependencyProperty; + + if (bindingTargetProperty == null) + { + throw new NotSupportedException($"The property '{valueProvider.TargetProperty}' is not valid for a LazyBinding. The LazyBinding target property must be a DependencyProperty."); + } + + binding = new Binding + { + Path = Path, + Converter = Converter, + ConverterCulture = ConverterCulture, + ConverterParameter = ConverterParamter + }; + + if (ElementName != null) + { + binding.ElementName = ElementName; + } + + if (RelativeSource != null) + { + binding.RelativeSource = RelativeSource; + } + + if (Source != null) + { + binding.Source = Source; + } + + binding.UpdateSourceTrigger = UpdateSourceTrigger; + binding.ValidatesOnDataErrors = ValidatesOnDataErrors; + binding.ValidatesOnExceptions = ValidatesOnExceptions; + binding.ValidatesOnNotifyDataErrors = ValidatesOnNotifyDataErrors; + + return SetBinding(); + } + + return null; + } + + public object SetBinding() + { + bindingTarget.IsVisibleChanged += UiElement_IsVisibleChanged; + + updateBinding(); + + return bindingTarget.GetValue(bindingTargetProperty); + } + + #endregion + + #region Event Handlers + + private void UiElement_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e) + { + updateBinding(); + } + + #endregion + + #region Update Binding + + private void updateBinding() + { + if (bindingTarget.IsVisible) + { + ConsolidateBinding(); + } + else + { + ClearBinding(); + } + } + + private bool _isBind; + + private void ConsolidateBinding() + { + if (_isBind) + { + return; + } + + _isBind = true; + + BindingOperations.SetBinding(bindingTarget, bindingTargetProperty, binding); + } + + private void ClearBinding() + { + if (!_isBind) + { + return; + } + + BindingOperations.ClearBinding(bindingTarget, bindingTargetProperty); + + _isBind = false; + } + + #endregion + } +} diff --git a/Software/Visual_Studio/Tango.SharedUI/Controls/FastTextBlock.cs b/Software/Visual_Studio/Tango.SharedUI/Controls/FastTextBlock.cs index 141fa6e27..07005a0f4 100644 --- a/Software/Visual_Studio/Tango.SharedUI/Controls/FastTextBlock.cs +++ b/Software/Visual_Studio/Tango.SharedUI/Controls/FastTextBlock.cs @@ -1,5 +1,6 @@ using System; using System.Collections.Generic; +using System.ComponentModel; using System.Globalization; using System.Linq; using System.Text; @@ -30,6 +31,23 @@ namespace Tango.SharedUI.Controls public FastTextBlock() { Loaded += FastTextBlock_Loaded; + + DependencyPropertyDescriptor fontFamilyPropertyDescriptor = DependencyPropertyDescriptor.FromProperty(FastTextBlock.FontFamilyProperty, typeof(FastTextBlock)); + fontFamilyPropertyDescriptor.AddValueChanged(this, OnPropertyChangedInit); + + DependencyPropertyDescriptor fontSizePropertyDescriptor = DependencyPropertyDescriptor.FromProperty(FastTextBlock.FontSizeProperty, typeof(FastTextBlock)); + fontSizePropertyDescriptor.AddValueChanged(this, OnPropertyChangedInit); + + DependencyPropertyDescriptor fontWeightPropertyDescriptor = DependencyPropertyDescriptor.FromProperty(FastTextBlock.FontWeightProperty, typeof(FastTextBlock)); + fontWeightPropertyDescriptor.AddValueChanged(this, OnPropertyChangedInit); + + DependencyPropertyDescriptor ForegroundPropertyDescriptor = DependencyPropertyDescriptor.FromProperty(FastTextBlock.ForegroundProperty, typeof(FastTextBlock)); + ForegroundPropertyDescriptor.AddValueChanged(this, OnPropertyChangedInit); + } + + private void OnPropertyChangedInit(object sender, EventArgs e) + { + Init(); } private void FastTextBlock_Loaded(object sender, RoutedEventArgs e) diff --git a/Software/Visual_Studio/Tango.SharedUI/Tango.SharedUI.csproj b/Software/Visual_Studio/Tango.SharedUI/Tango.SharedUI.csproj index e4dc72746..5d9592a26 100644 --- a/Software/Visual_Studio/Tango.SharedUI/Tango.SharedUI.csproj +++ b/Software/Visual_Studio/Tango.SharedUI/Tango.SharedUI.csproj @@ -67,6 +67,7 @@ <Compile Include="Binding\BindingEventArgs.cs" /> <Compile Include="Binding\BindingEventContainer.cs" /> <Compile Include="Binding\BindingProperty.cs" /> + <Compile Include="Components\LazyBinding.cs" /> <Compile Include="Components\BindingProxy.cs" /> <Compile Include="Components\SelectedObject.cs" /> <Compile Include="Components\SelectedObjectCollection.cs" /> @@ -261,7 +262,7 @@ <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> <ProjectExtensions> <VisualStudio> - <UserProperties BuildVersion_StartDate="2000/1/1" BuildVersion_UseGlobalSettings="False" BuildVersion_BuildVersioningStyle="None.None.Increment.TimeStamp" BuildVersion_UpdateAssemblyVersion="True" BuildVersion_AssemblyInfoFilename="Properties\AssemblyInfo.cs" /> + <UserProperties BuildVersion_AssemblyInfoFilename="Properties\AssemblyInfo.cs" BuildVersion_UpdateAssemblyVersion="True" BuildVersion_BuildVersioningStyle="None.None.Increment.TimeStamp" BuildVersion_UseGlobalSettings="False" BuildVersion_StartDate="2000/1/1" /> </VisualStudio> </ProjectExtensions> </Project>
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