57 lines
2.3 KiB
C++
57 lines
2.3 KiB
C++
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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#pragma once
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namespace CalculatorApp
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{
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namespace Controls
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{
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public ref class OverflowTextBlock sealed : public Windows::UI::Xaml::Controls::Control
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{
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public:
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OverflowTextBlock()
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{
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}
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DEPENDENCY_PROPERTY_OWNER(OverflowTextBlock);
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DEPENDENCY_PROPERTY_WITH_CALLBACK(bool, TokensUpdated);
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DEPENDENCY_PROPERTY(bool, IsActive);
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DEPENDENCY_PROPERTY(Windows::UI::Xaml::Style^, TextStyle);
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void UpdateScrollButtons();
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void UnregisterEventHandlers();
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protected:
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virtual void OnApplyTemplate() override;
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virtual Windows::UI::Xaml::Automation::Peers::AutomationPeer^ OnCreateAutomationPeer() override;
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private:
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void OnScrollClick(_In_ Platform::Object^ sender, _In_ Windows::UI::Xaml::RoutedEventArgs^ e);
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void OnPointerEntered(_In_ Platform::Object^ sender, _In_ Windows::UI::Xaml::Input::PointerRoutedEventArgs^ e);
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void OnPointerExited(_In_ Platform::Object^ sender, _In_ Windows::UI::Xaml::Input::PointerRoutedEventArgs^ e);
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void ShowHideScrollButtons(Windows::UI::Xaml::Visibility vLeft, Windows::UI::Xaml::Visibility vRight);
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void OnTokensUpdatedPropertyChanged(bool oldValue, bool newValue);
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void UpdateVisualState();
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void UpdateExpressionState();
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void UpdateAllState();
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void ScrollLeft();
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void ScrollRight();
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double scrollRatio = 0.7;
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bool m_scrollingLeft;
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bool m_scrollingRight;
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Windows::UI::Xaml::Controls::ListView^ m_listView;
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Windows::UI::Xaml::Controls::ScrollViewer^ m_expressionContainer;
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Windows::UI::Xaml::Controls::Button^ m_scrollLeft;
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Windows::UI::Xaml::Controls::Button^ m_scrollRight;
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Windows::Foundation::EventRegistrationToken m_scrollLeftClickEventToken;
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Windows::Foundation::EventRegistrationToken m_scrollRightClickEventToken;
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Windows::Foundation::EventRegistrationToken m_pointerEnteredEventToken;
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Windows::Foundation::EventRegistrationToken m_pointerExitedEventToken;
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};
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}
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}
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