128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_TREEVIEWITEM_H__
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#define __GUI_TREEVIEWITEM_H__
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#include <NsCore/Noesis.h>
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#include <NsGui/HeaderedItemsControl.h>
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namespace Noesis
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{
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class TreeView;
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NS_WARNING_PUSH
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NS_MSVC_WARNING_DISABLE(4251 4275)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Implements a selectable item in a TreeView control.
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///
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/// http://msdn.microsoft.com/en-us/library/system.windows.controls.treeviewitem.aspx
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API TreeViewItem: public HeaderedItemsControl
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{
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public:
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TreeViewItem();
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~TreeViewItem();
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/// Gets or sets whether the nested items in a TreeViewItem are expanded or collapsed
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//@{
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bool GetIsExpanded() const;
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void SetIsExpanded(bool value);
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//@}
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/// Gets or sets whether a TreeViewItem control is selected
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//@{
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bool GetIsSelected() const;
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void SetIsSelected(bool value);
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//@}
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/// Gets a value that indicates whether the containing TreeView has keyboard focus
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bool GetIsSelectionActive() const;
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/// Occurs when the IsExpanded property changes from true to false
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UIElement::RoutedEvent_<RoutedEventHandler> Collapsed();
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/// Occurs when the IsExpanded property changes from false to true
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UIElement::RoutedEvent_<RoutedEventHandler> Expanded();
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/// Occurs when the IsSelected property of a TreeViewItem changes from false to true
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UIElement::RoutedEvent_<RoutedEventHandler> Selected();
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/// Occurs when the IsSelected property of a TreeViewItem changes from true to false
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UIElement::RoutedEvent_<RoutedEventHandler> Unselected();
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public:
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static const DependencyProperty* IsExpandedProperty;
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static const DependencyProperty* IsSelectedProperty;
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static const DependencyProperty* IsSelectionActiveProperty;
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static const RoutedEvent* CollapsedEvent;
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static const RoutedEvent* ExpandedEvent;
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static const RoutedEvent* SelectedEvent;
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static const RoutedEvent* UnselectedEvent;
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protected:
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virtual void OnCollapsed(const RoutedEventArgs& e);
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virtual void OnExpanded(const RoutedEventArgs& e);
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virtual void OnSelected(const RoutedEventArgs& e);
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virtual void OnUnselected(const RoutedEventArgs& e);
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// From ItemsControl
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//@{
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Ptr<DependencyObject> GetContainerForItemOverride() const override;
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bool IsItemItsOwnContainerOverride(BaseComponent* item) const override;
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void OnItemsChanged(const NotifyCollectionChangedEventArgs& args) override;
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//@}
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// From Control
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//@{
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void UpdateVisualStates() override;
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//@}
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// From FrameworkElement
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//@{
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void OnTemplateChanged(FrameworkTemplate* oldTemplate, FrameworkElement* oldRoot,
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FrameworkTemplate* newTemplate, FrameworkElement* newRoot) override;
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//@}
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// From UIElement
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//@{
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void OnMouseLeftButtonDown(const MouseButtonEventArgs& e) override;
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void OnMouseLeftButtonUp(const MouseButtonEventArgs& e) override;
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void OnGotFocus(const RoutedEventArgs& e) override;
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void OnPreviewKeyDown(const KeyEventArgs& e) override;
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void OnKeyDown(const KeyEventArgs& e) override;
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//@}
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// From DependencyObject
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//@{
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bool OnPropertyChanged(const DependencyPropertyChangedEventArgs& args) override;
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//@}
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private:
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TreeView* GetSourceTreeView() const;
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FrameworkElement* GetHeaderHost() const;
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bool BringHeaderIntoView();
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private:
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Ptr<FrameworkElement> mHeaderHost;
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NS_DECLARE_REFLECTION(TreeViewItem, HeaderedItemsControl)
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};
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NS_WARNING_POP
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}
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#endif
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