de65db6197
Fixes #402 and #414 Divide by 4 the CPU usage of OverflowTextBlock when buttons are pressed very quickly. Description of the changes: Xaml-side: OverflowTextBlock has some performance issues: double scrollviewer: the listview was in a scrollviewer, while the control already containing one -> it breaks the virtualization of the listview and impacts on UI performance. The listview used a StackPanel, this panel doesn't support virtualization of ListViewItems contrary to ItemsStackPanel No ListView-specific features were used, an ItemsControl is more efficient and lighter. refactor how we manage the visibility of the left/right buttons in OverflowTextBlock, the new version is more reactive and will not display the right arrow when not necessary (see GIF below). remove the ItemContainerSelector ExpressionItemContainerStyle, not really used by OverflowTextBlock remove UI glitches generated by ChangeView when users type fast (control partially hidden and scrolling issues, see the GIF below). only modify the accessibility view when it's necessary ViewModel-side: stop fully refreshing ExpressionTokens in StandardCalculatorViewModel when a new command were sent, instead, use a IObservableVector to only send new tokens to the UI (in average only 1 or 2 UI items are refreshed while the full expression was refreshed before) How changes were validated: Manually |
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| CODE_OF_CONDUCT.md | ||
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| README.md | ||
Calculator
The Windows Calculator app is a modern Windows app written in C++ that ships pre-installed with Windows. The app provides standard, scientific, and programmer calculator functionality, as well as a set of converters between various units of measurement and currencies.
Calculator ships regularly with new features and bug fixes. You can get the latest version of Calculator in the Microsoft Store.
Features
- Standard Calculator functionality which offers basic operations and evaluates commands immediately as they are entered.
- Scientific Calculator functionality which offers expanded operations and evaluates commands using order of operations.
- Programmer Calculator functionality which offers common mathematical operations for developers including conversion between common bases.
- Date Calculation functionality which offers the difference between two dates, as well as the ability to add/subtract years, months and/or days to/from a given input date.
- Calculation history and memory capabilities.
- Conversion between many units of measurement.
- Currency conversion based on data retrieved from Bing.
Getting started
Prerequisites:
-
Your computer must be running Windows 10, version 1803 or newer.
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Install the latest version of Visual Studio (the free community edition is sufficient).
- Install the "Universal Windows Platform Development" workload.
- Install the optional "C++ Universal Windows Platform tools" component.
- Install the latest Windows 10 SDK.
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Install the XAML Styler Visual Studio extension.
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Get the code:
git clone https://github.com/Microsoft/calculator.git -
Open src\Calculator.sln in Visual Studio to build and run the Calculator app.
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For a general description of the Calculator project architecture see ApplicationArchitecture.md.
Contributing
Want to contribute? The team encourages community feedback and contributions. Please follow our contributing guidelines.
If Calculator is not working properly, please file a report in the Feedback Hub. We also welcome issues submitted on GitHub.
Roadmap
For information regarding Windows Calculator plans and release schedule, please see the Windows Calculator Roadmap.
Data / Telemetry
This project collects usage data and sends it to Microsoft to help improve our products and services.
Read our privacy statement to learn more.
Telemetry is disabled in development builds by default, and can be enabled with the SEND_TELEMETRY
build flag.
Reporting Security Issues
Security issues and bugs should be reported privately, via email, to the Microsoft Security Response Center (MSRC) at <secure@microsoft.com>. You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Further information, including the MSRC PGP key, can be found in the Security TechCenter.
License
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the MIT License.