### Description of the changes:
**1) Do not set units to default values if they already have valid values**
This fixes the actual issue. `UnitConverter::InitializeSelectedUnits()` ( this function resets all units to their default units if available for the current category ) gets called after `UnitConverterViewModel::RestoreUserPreferences()` ( this function restores user preferences ).
So Calculator has been restoring saved values, and then overriding the restored values with default values.
I modified `InitializeSelectedUnits()` so that we only initialize units only when they are not already set to valid units for the current category.
**2) Removed `m_isFirstTime`**
I noticed that we are calling `RestoreUserPreferences()` twice when Calculator starts up, and the function is restoring the same value both times
The below happens when Calculator starts up
1) On startup, in `UnitConverterViewModel::InitializeView()`, `RestoreUserPreferences()` is called.
2) `RestoreUserPreferences()` in turn triggers `OnUnitChanged()`
3) During the first call to `OnUnitChanged()`, m_IsFirstTime is `True`, so we call `RestoreUserPreferences()` again while also setting `m_IsFirstTime` to `False`.
4) `RestoreUserPreference()` again triggers `OnUnitChanged()`
5) During the second call to `OnUnitChanged()`, m_IsFirstTime is `False`, so we call `SaveUserPreferences()`
I think we should only call `SaveUserPreferences()` inside `OnUnitChanged()` since we already restored user preferences during view initialization. I can't really think of a reason to restore units after view has been initialized. This led me to just delete `m_isFirstTime`.
### How changes were validated:
Manually tested that units and the current category are properly selected when you quit and start Calculator.
## Fixes#445.
Description of the changes:
Adjusted some of the values in .clang-format
Add clang-format-all.ps1
Fix path to .clang-format in Calculator.sln
How changes were validated:
Manual.
Fixes#202
This PR fixes code style for the project files.
The Problem
Different files in the project use different code style. That is not consistent and leads to harder maintenance of the project.
Description of the changes:
Have investigated and determined the most used code style across the given codebase
Have configured IDE and applied code style to all project files.
Have crafted clang-formatter config.
see https://clang.llvm.org/docs/ClangFormat.htmlhttps://clang.llvm.org/docs/ClangFormatStyleOptions.html
Some cases were fixed manually
How changes were validated:
manual/ad-hoc testing, automated testing
All tests pass as before because these are only code style changes.
Additional
Please review, and let me know if I have any mistake in the code style. In case of any mistake, I will change the configuration and re-apply it to the project.
Fixes#260
Description of the changes:
prevent UnitConverterViewModel to reset values when users click on update rates.
recompute UnitConverter's caches (m_ratioMap and m_categoryToUnits) once rates are updated (but check first if the user did/didn't change the category)
How changes were validated:
Manually tested with fake currency rates (HTTP responses modified on the fly via FiddlerCore)
Verified that it works no matter the selected field (From or To)
Verified that the currencies selected are kept after a refresh
Fixed comments that were inconsistent with the style guidelines described in C++ core guidelines and the modern C++/WinRT language projections and removed trailing whitespace.
Inserted a space after the beginning of the comment so the text wasn't touching the // on all occurrences.
Removed all occurrences of trailing whitespace
Before this change, the pchs for CalcViewModel and Calculator project referenced project headers. If those project headers (or any of their dependencies) were to change, then the pch would be recompiled, slowing local build times.
By removing references to project headers, the pch will be compiled once and is resilient to changes in the project. Now that project headers are explicit about their dependencies, when there is a change to a project header only the translation units referencing the modified header will need to be rebuilt.
- Manually tested by ensuring Calculator project builds locally.
@Microsoft/calculator-team
