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Fix crash and high contrast (#773)

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This commit is contained in:
Pepe Rivera
2019-11-05 15:26:46 -08:00
committed by GitHub
parent 65c304682d
commit 433d54d571
5 changed files with 96 additions and 64 deletions
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91
src/Calculator/Views/GraphingCalculator/EquationInputArea.xaml.cpp
View File

@@ -6,7 +6,9 @@ using namespace CalculatorApp::Common;
using namespace CalculatorApp::ViewModel;
using namespace CalculatorApp::Controls;
using namespace Platform;
using namespace Platform::Collections;
using namespace std;
using namespace Windows::Foundation;
using namespace Windows::System;
using namespace Windows::UI;
using namespace Windows::UI::ViewManagement;
@@ -24,11 +26,18 @@ namespace
EquationInputArea::EquationInputArea()
: m_lastLineColorIndex{ -1 }
, m_AvailableColors{ ref new Vector<SolidColorBrush ^>() }
, m_accessibilitySettings{ ref new AccessibilitySettings() }
{
InitializeComponent();
m_accessibilitySettings->HighContrastChanged +=
ref new TypedEventHandler<AccessibilitySettings ^, Object ^>(this, &EquationInputArea::OnHighContrastChanged);
ReloadAvailableColors(m_accessibilitySettings->HighContrast);
InitializeComponent();
}
void EquationInputArea::OnPropertyChanged(String^ propertyName)
void EquationInputArea::OnPropertyChanged(String ^ propertyName)
{
if (propertyName == EquationsPropertyName)
{
@@ -44,7 +53,7 @@ void EquationInputArea::OnEquationsPropertyChanged()
}
}
void EquationInputArea::AddEquationButton_Click(Object^ sender, RoutedEventArgs^ e)
void EquationInputArea::AddEquationButton_Click(Object ^ sender, RoutedEventArgs ^ e)
{
AddNewEquation();
}
@@ -52,31 +61,36 @@ void EquationInputArea::AddEquationButton_Click(Object^ sender, RoutedEventArgs^
void EquationInputArea::AddNewEquation()
{
auto eq = ref new EquationViewModel();
m_lastLineColorIndex = (m_lastLineColorIndex + 1) % AvailableColors->Size;
eq->LineColor = AvailableColors->GetAt(m_lastLineColorIndex);
Equations->Append(eq);
}
void EquationInputArea::InputTextBox_GotFocus(Object^ sender, RoutedEventArgs^ e)
void EquationInputArea::InputTextBox_GotFocus(Object ^ sender, RoutedEventArgs ^ e)
{
KeyboardShortcutManager::HonorShortcuts(false);
}
void EquationInputArea::InputTextBox_LostFocus(Object^ sender, RoutedEventArgs^ e)
void EquationInputArea::InputTextBox_LostFocus(Object ^ sender, RoutedEventArgs ^ e)
{
KeyboardShortcutManager::HonorShortcuts(true);
}
void EquationInputArea::InputTextBox_Submitted(Object ^ sender, RoutedEventArgs ^ e)
{
auto tb = static_cast<EquationTextBox^>(sender);
auto eq = static_cast<EquationViewModel^>(tb->DataContext);
auto tb = static_cast<EquationTextBox ^>(sender);
auto eq = static_cast<EquationViewModel ^>(tb->DataContext);
eq->Expression = tb->GetEquationText();
FocusManager::TryMoveFocus(::FocusNavigationDirection::Left);
}
void EquationInputArea::EquationTextBox_RemoveButtonClicked(Object^ sender, RoutedEventArgs^ e)
void EquationInputArea::EquationTextBox_RemoveButtonClicked(Object ^ sender, RoutedEventArgs ^ e)
{
auto tb = static_cast<EquationTextBox^>(sender);
auto eq = static_cast<EquationViewModel^>(tb->DataContext);
auto tb = static_cast<EquationTextBox ^>(sender);
auto eq = static_cast<EquationViewModel ^>(tb->DataContext);
unsigned int index;
if (Equations->IndexOf(eq, &index))
{
@@ -90,8 +104,57 @@ void EquationInputArea::EquationTextBoxLoaded(Object ^ sender, RoutedEventArgs ^
auto eq = static_cast<EquationViewModel ^>(tb->DataContext);
auto colorChooser = static_cast<EquationStylePanelControl ^>(tb->ColorChooserFlyout->Content);
m_lastLineColorIndex = (m_lastLineColorIndex + 1) % colorChooser->AvailableColors->Size;
eq->LineColor = colorChooser->AvailableColors->GetAt(m_lastLineColorIndex);
colorChooser->AvailableColors = AvailableColors;
}
void EquationInputArea::OnHighContrastChanged(AccessibilitySettings ^ sender, Object ^ args)
{
ReloadAvailableColors(sender->HighContrast);
}
void EquationInputArea::ReloadAvailableColors(bool isHighContrast)
{
m_AvailableColors->Clear();
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush1")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush2")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush3")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush4")));
// If this is not high contrast, we have all 16 colors, otherwise we will restrict this to a subset of high contrast colors
if (!isHighContrast)
{
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush5")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush6")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush7")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush8")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush9")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush10")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush11")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush12")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush13")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush14")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush15")));
m_AvailableColors->Append(safe_cast<SolidColorBrush ^>(Application::Current->Resources->Lookup(L"EquationBrush16")));
}
// If there are no equations to reload, quit early
if (Equations == nullptr || Equations->Size == 0)
{
return;
}
// Use a blank brush to clear out the color before setting it. This is needed because going
// from High Contrast White -> High Contrast Black, the high contrast colors seem to be equivalent,
// causing the change to not take place.
auto blankBrush = ref new SolidColorBrush();
// Reassign colors for each equation
m_lastLineColorIndex = -1;
for (auto equationViewModel : Equations)
{
m_lastLineColorIndex = (m_lastLineColorIndex + 1) % AvailableColors->Size;
equationViewModel->LineColor = blankBrush;
equationViewModel->LineColor = AvailableColors->GetAt(m_lastLineColorIndex);
}
}

6
src/Calculator/Views/GraphingCalculator/EquationInputArea.xaml.h
View File

@@ -16,6 +16,8 @@ namespace CalculatorApp
OBSERVABLE_OBJECT_CALLBACK(OnPropertyChanged);
OBSERVABLE_PROPERTY_RW(Windows::Foundation::Collections::IObservableVector< ViewModel::EquationViewModel^ >^, Equations);
OBSERVABLE_PROPERTY_RW(Windows::Foundation::Collections::IObservableVector<Windows::UI::Xaml::Media::SolidColorBrush ^> ^, AvailableColors);
private:
void OnPropertyChanged(Platform::String^ propertyName);
@@ -28,7 +30,11 @@ namespace CalculatorApp
void InputTextBox_LostFocus(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
void InputTextBox_Submitted(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e);
void OnHighContrastChanged(Windows::UI::ViewManagement::AccessibilitySettings ^ sender, Platform::Object ^ args);
void ReloadAvailableColors(bool isHighContrast);
private:
Windows::UI::ViewManagement::AccessibilitySettings ^ m_accessibilitySettings;
int m_lastLineColorIndex;
void EquationTextBox_RemoveButtonClicked(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
void EquationTextBoxLoaded(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e);