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Add variable editing (#581)

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Pepe Rivera 2019-07-24 11:23:33 -07:00 • committed by GitHub
commit 46f11c7c72
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12 changed files with 519 additions and 6 deletions
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60
src/CalcViewModel/GraphingCalculator/GraphingCalculatorViewModel.h
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@ -5,6 +5,62 @@
namespace CalculatorApp::ViewModel
{
public value struct VariableChangedEventArgs sealed
{
Platform::String^ variableName;
double newValue;
};
[Windows::UI::Xaml::Data::Bindable]
public ref class VariableViewModel sealed : public Windows::UI::Xaml::Data::INotifyPropertyChanged
{
public:
VariableViewModel(Platform::String^ name, double value) :
m_Name(name),
m_Value(value),
m_SliderSettingsVisible(false),
m_Min(0.0),
m_Step(0.1),
m_Max(2.0)
{ }
OBSERVABLE_OBJECT_CALLBACK(OnPropertyChanged);
OBSERVABLE_PROPERTY_R(Platform::String^, Name);
// TODO: Consider removing this work around and manually set the textbox text.
OBSERVABLE_PROPERTY_RW_ALWAYS_NOTIFY(double, Value);
OBSERVABLE_PROPERTY_RW_ALWAYS_NOTIFY(double, Min);
OBSERVABLE_PROPERTY_RW_ALWAYS_NOTIFY(double, Step);
OBSERVABLE_PROPERTY_RW_ALWAYS_NOTIFY(double, Max);
OBSERVABLE_PROPERTY_RW(bool, SliderSettingsVisible);
event Windows::Foundation::EventHandler<VariableChangedEventArgs>^ VariableUpdated;
void SetValue(double value)
{
if (value < Min)
{
value = Min;
}
else if (value > Max)
{
value = Max;
}
Value = value;
}
private:
void OnPropertyChanged(Platform::String^ propertyName)
{
if (propertyName == "Value")
{
VariableUpdated(this, VariableChangedEventArgs{ Name, Value });
}
}
};
[Windows::UI::Xaml::Data::Bindable]
public ref class GraphingCalculatorViewModel sealed : public Windows::UI::Xaml::Data::INotifyPropertyChanged
{
@ -14,9 +70,13 @@ namespace CalculatorApp::ViewModel
OBSERVABLE_OBJECT();
OBSERVABLE_PROPERTY_R(bool, IsDecimalEnabled);
OBSERVABLE_PROPERTY_R(Windows::Foundation::Collections::IObservableVector< EquationViewModel^ >^, Equations);
OBSERVABLE_PROPERTY_R(Windows::Foundation::Collections::IObservableVector< VariableViewModel^ >^, Variables);
COMMAND_FOR_METHOD(ButtonPressed, GraphingCalculatorViewModel::OnButtonPressed);
event Windows::Foundation::EventHandler<VariableChangedEventArgs>^ VariableUpdated;
void UpdateVariables(Windows::Foundation::Collections::IMap<Platform::String^, double>^ variables);
private:
void OnButtonPressed(Platform::Object^ parameter);
};