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Utils.h
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
#pragma once
#include "CalcManager/ExpressionCommandInterface.h"
#include "DelegateCommand.h"
#include "GraphingInterfaces/GraphingEnums.h"
// Utility macros to make Models easier to write
// generates a member variable called m_<n>
#define SINGLE_ARG(...) __VA_ARGS__
#define PROPERTY_R(t, n) \
property t n \
{ \
t get() \
{ \
return m_##n; \
} \
\
private: \
void set(t value) \
{ \
m_##n = value; \
} \
} \
\
private: \
t m_##n; \
\
public:
#define PROPERTY_RW(t, n) \
property t n \
{ \
t get() \
{ \
return m_##n; \
} \
void set(t value) \
{ \
m_##n = value; \
} \
} \
\
private: \
t m_##n; \
\
public:
#define OBSERVABLE_PROPERTY_R(t, n) \
property t n \
{ \
t get() \
{ \
return m_##n; \
} \
\
private: \
void set(t value) \
{ \
if (m_##n != value) \
{ \
m_##n = value; \
RaisePropertyChanged(L#n); \
} \
} \
} \
\
private: \
t m_##n; \
\
public:
#define OBSERVABLE_PROPERTY_RW(t, n) \
property t n \
{ \
t get() \
{ \
return m_##n; \
} \
void set(t value) \
{ \
if (m_##n != value) \
{ \
m_##n = value; \
RaisePropertyChanged(L#n); \
} \
} \
} \
\
private: \
t m_##n; \
\
public:
#define OBSERVABLE_NAMED_PROPERTY_R(t, n) \
OBSERVABLE_PROPERTY_R(t, n) \
internal: \
static property Platform::String ^ n##PropertyName \
{ \
Platform::String ^ get() { return Platform::StringReference(L#n); } \
} \
\
public:
#define OBSERVABLE_NAMED_PROPERTY_RW(t, n) \
OBSERVABLE_PROPERTY_RW(t, n) \
internal: \
static property Platform::String ^ n##PropertyName \
{ \
Platform::String ^ get() { return Platform::StringReference(L#n); } \
} \
\
public:
#define OBSERVABLE_PROPERTY_FIELD(n) m_##n
// This variant of the observable object is for objects that don't want to react to property changes
#ifndef UNIT_TESTS
#define OBSERVABLE_OBJECT() \
virtual event Windows::UI::Xaml::Data::PropertyChangedEventHandler ^ PropertyChanged; \
internal: \
void RaisePropertyChanged(Platform::String ^ p) \
{ \
PropertyChanged(this, ref new Windows::UI::Xaml::Data::PropertyChangedEventArgs(p)); \
} \
\
public:
#else
#define OBSERVABLE_OBJECT() \
virtual event Windows::UI::Xaml::Data::PropertyChangedEventHandler ^ PropertyChanged; \
internal: \
void RaisePropertyChanged(Platform::String ^ p) \
{ \
} \
\
public:
#endif
// The callback specified in the macro is a method in the class that will be called every time the object changes
// the callback is supposed to be have a single parameter of type Platform::String^
#ifndef UNIT_TESTS
#define OBSERVABLE_OBJECT_CALLBACK(c) \
virtual event Windows::UI::Xaml::Data::PropertyChangedEventHandler ^ PropertyChanged; \
internal: \
void RaisePropertyChanged(Platform::String ^ p) \
{ \
PropertyChanged(this, ref new Windows::UI::Xaml::Data::PropertyChangedEventArgs(p)); \
c(p); \
} \
\
public:
#else
#define OBSERVABLE_OBJECT_CALLBACK(c) \
virtual event Windows::UI::Xaml::Data::PropertyChangedEventHandler ^ PropertyChanged; \
internal: \
void RaisePropertyChanged(Platform::String ^ p) \
{ \
c(p); \
} \
\
public:
#endif
// The variable member generated by this macro should not be used in the class code, use the
// property getter instead.
#define COMMAND_FOR_METHOD(p, m) \
property Windows::UI::Xaml::Input::ICommand^ p {\
Windows::UI::Xaml::Input::ICommand^ get() {\
if (!donotuse_##p) {\
donotuse_##p = CalculatorApp::Common::MakeDelegate(this, &m);\
} return donotuse_##p; }} private: Windows::UI::Xaml::Input::ICommand^ donotuse_##p; \
\
public:
#define DEPENDENCY_PROPERTY_DECLARATION(t, n) \
property t n \
{ \
t get() \
{ \
return safe_cast<t>(GetValue(s_##n##Property)); \
} \
void set(t value) \
{ \
SetValue(s_##n##Property, value); \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##n##Property; \
\
private:
// Utilities for DependencyProperties
namespace Utils
{
namespace Details
{
template <typename T>
struct IsRefClass
{
static const bool value = __is_ref_class(T);
};
template <typename T>
struct RemoveHat
{
typedef T type;
};
template <typename T>
struct RemoveHat<T ^>
{
typedef T type;
};
template <typename T>
typename std::enable_if<IsRefClass<T>::value, T ^>::type MakeDefault()
{
return nullptr;
}
template <typename T>
typename std::enable_if<!IsRefClass<T>::value, T>::type MakeDefault()
{
return T();
}
// There's a bug in Xaml in which custom enums are not recognized by the property system/binding
// therefore this template will determine that for enums the type to use to register the
// DependencyProperty is to be Object, for everything else it will use the type
// NOTE: If we are to find more types in which this is broken this template
// will be specialized for those types to return Object
template <typename T>
struct TypeToUseForDependencyProperty
{
typedef typename std::conditional<std::is_enum<T>::value, Platform::Object, T>::type type;
};
}
const wchar_t LRE = 0x202a; // Left-to-Right Embedding
const wchar_t PDF = 0x202c; // Pop Directional Formatting
const wchar_t LRO = 0x202d; // Left-to-Right Override
// Regular DependencyProperty
template <typename TOwner, typename TType>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyProperty(
_In_ const wchar_t* const name,
_In_ Windows::UI::Xaml::PropertyMetadata^ metadata)
{
typedef typename Details::RemoveHat<TOwner>::type OwnerType;
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
typedef typename Details::TypeToUseForDependencyProperty<ThisPropertyType>::type ThisDependencyPropertyType;
static_assert(Details::IsRefClass<OwnerType>::value, "The owner of a DependencyProperty must be a ref class");
return Windows::UI::Xaml::DependencyProperty::Register(
Platform::StringReference(name),
ThisDependencyPropertyType::typeid, // Work around bugs in Xaml by using the filtered type
OwnerType::typeid,
metadata);
}
template <typename TOwner, typename TType>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyProperty(_In_ const wchar_t* const name)
{
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
return RegisterDependencyProperty<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(Details::MakeDefault<ThisPropertyType>()));
}
template <typename TOwner, typename TType>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyProperty(_In_ const wchar_t* const name, TType defaultValue)
{
return RegisterDependencyProperty<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(defaultValue));
}
template <typename TOwner, typename TType, typename TCallback>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyWithCallback(
_In_ wchar_t const * const name,
TCallback callback)
{
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
return RegisterDependencyProperty<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(
Details::MakeDefault<ThisPropertyType>(),
ref new Windows::UI::Xaml::PropertyChangedCallback(callback)));
}
template <typename TOwner, typename TType, typename TCallback>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyWithCallback(
_In_ wchar_t const * const name,
TType defaultValue,
TCallback callback)
{
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
return RegisterDependencyProperty<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(
defaultValue,
ref new Windows::UI::Xaml::PropertyChangedCallback(callback)));
}
// Attached DependencyProperty
template <typename TOwner, typename TType>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyAttached(
_In_ const wchar_t* const name,
_In_ Windows::UI::Xaml::PropertyMetadata^ metadata)
{
typedef typename Details::RemoveHat<TOwner>::type OwnerType;
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
typedef typename Details::TypeToUseForDependencyProperty<ThisPropertyType>::type ThisDependencyPropertyType;
static_assert(Details::IsRefClass<OwnerType>::value, "The owner of a DependencyProperty must be a ref class");
return Windows::UI::Xaml::DependencyProperty::RegisterAttached(
Platform::StringReference(name),
ThisDependencyPropertyType::typeid, // Work around bugs in Xaml by using the filtered type
OwnerType::typeid,
metadata);
}
template <typename TOwner, typename TType>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyAttached(_In_ const wchar_t* const name)
{
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
return RegisterDependencyPropertyAttached<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(Details::MakeDefault<ThisPropertyType>()));
}
template <typename TOwner, typename TType>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyAttached(_In_ const wchar_t* const name, TType defaultValue)
{
return RegisterDependencyPropertyAttached<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(defaultValue));
}
template <typename TOwner, typename TType, typename TCallback>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyAttachedWithCallback(
_In_ wchar_t const * const name,
TCallback callback)
{
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
return RegisterDependencyPropertyAttached<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(
Details::MakeDefault<ThisPropertyType>(),
ref new Windows::UI::Xaml::PropertyChangedCallback(callback)));
}
template <typename TOwner, typename TType, typename TCallback>
Windows::UI::Xaml::DependencyProperty^ RegisterDependencyPropertyAttachedWithCallback(
_In_ wchar_t const * const name,
TType defaultValue,
TCallback callback)
{
typedef typename Details::RemoveHat<TType>::type ThisPropertyType;
return RegisterDependencyPropertyAttached<TOwner, TType>(
name,
ref new Windows::UI::Xaml::PropertyMetadata(
defaultValue,
ref new Windows::UI::Xaml::PropertyChangedCallback(callback)));
}
void IFTPlatformException(HRESULT hr);
Platform::String ^ GetStringValue(Platform::String ^ input);
bool IsLastCharacterTarget(std::wstring const& input, wchar_t target);
// Return wstring after removing characters specified by unwantedChars array
template <size_t N>
std::wstring RemoveUnwantedCharsFromString(std::wstring inputString, const wchar_t (&unwantedChars)[N])
{
for (const wchar_t unwantedChar : unwantedChars)
{
inputString.erase(std::remove(inputString.begin(), inputString.end(), unwantedChar), inputString.end());
}
return inputString;
}
double GetDoubleFromWstring(std::wstring input);
int GetWindowId();
void RunOnUIThreadNonblocking(std::function<void()>&& function, _In_ Windows::UI::Core::CoreDispatcher ^ currentDispatcher);
void SerializeCommandsAndTokens(
_In_ std::shared_ptr<std::vector<std::pair<std::wstring, int>>> const& tokens,
_In_ std::shared_ptr<std::vector<std::shared_ptr<IExpressionCommand>>> const& commands,
Windows::Storage::Streams::DataWriter ^ writer);
const std::shared_ptr<std::vector<std::shared_ptr<IExpressionCommand>>> DeserializeCommands(Windows::Storage::Streams::DataReader ^ reader);
const std::shared_ptr<std::vector<std::pair<std::wstring, int>>> DeserializeTokens(Windows::Storage::Streams::DataReader ^ reader);
Windows::Foundation::DateTime GetUniversalSystemTime();
bool IsDateTimeOlderThan(Windows::Foundation::DateTime dateTime, const long long duration);
concurrency::task<void> WriteFileToFolder(Windows::Storage::IStorageFolder^ folder, Platform::String^ fileName, Platform::String^ contents, Windows::Storage::CreationCollisionOption collisionOption);
concurrency::task<Platform::String^> ReadFileFromFolder(Windows::Storage::IStorageFolder^ folder, Platform::String^ fileName);
bool AreColorsEqual(const Windows::UI::Color& color1, const Windows::UI::Color& color2);
Platform::String^ Trim(Platform::String^ value);
void Trim(std::wstring& value);
void TrimFront(std::wstring& value);
void TrimBack(std::wstring& value);
Platform::String ^ EscapeHtmlSpecialCharacters(Platform::String ^ originalString, std::shared_ptr<std::vector<wchar_t>> specialCharacters = nullptr);
}
// This goes into the header to define the property, in the public: section of the class
#define DEPENDENCY_PROPERTY_OWNER(owner) \
private: \
typedef owner DependencyPropertiesOwner; \
\
public:
// Normal DependencyProperty
#define DEPENDENCY_PROPERTY(type, name) \
property type name \
{ \
type get() \
{ \
return safe_cast<type>(GetValue(s_##name##Property)); \
} \
void set(type value) \
{ \
SetValue(s_##name##Property, value); \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyProperty<DependencyPropertiesOwner, type>(L#name); \
} \
\
public:
#define DEPENDENCY_PROPERTY_WITH_DEFAULT(type, name, defaultValue) \
property type name \
{ \
type get() \
{ \
return safe_cast<type>(GetValue(s_##name##Property)); \
} \
void set(type value) \
{ \
SetValue(s_##name##Property, value); \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyProperty<DependencyPropertiesOwner, type>(L#name, defaultValue); \
} \
\
public:
#define DEPENDENCY_PROPERTY_WITH_CALLBACK(type, name) \
property type name \
{ \
type get() \
{ \
return safe_cast<type>(GetValue(s_##name##Property)); \
} \
void set(type value) \
{ \
SetValue(s_##name##Property, value); \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyPropertyWithCallback<DependencyPropertiesOwner, type>(L#name, &On##name##PropertyChangedImpl); \
} \
static void On##name##PropertyChangedImpl(Windows::UI::Xaml::DependencyObject ^ sender, Windows::UI::Xaml::DependencyPropertyChangedEventArgs ^ args) \
{ \
auto self = safe_cast<DependencyPropertiesOwner ^>(sender); \
self->On##name##PropertyChanged(safe_cast<type>(args->OldValue), safe_cast<type>(args->NewValue)); \
} \
\
public:
#define DEPENDENCY_PROPERTY_WITH_DEFAULT_AND_CALLBACK(type, name, defaultValue) \
property type name \
{ \
type get() \
{ \
return safe_cast<type>(GetValue(s_##name##Property)); \
} \
void set(type value) \
{ \
SetValue(s_##name##Property, value); \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyPropertyWithCallback<DependencyPropertiesOwner, type>(L#name, defaultValue, &On##name##PropertyChangedImpl); \
} \
static void On##name##PropertyChangedImpl(Windows::UI::Xaml::DependencyObject ^ sender, Windows::UI::Xaml::DependencyPropertyChangedEventArgs ^ args) \
{ \
auto self = safe_cast<DependencyPropertiesOwner ^>(sender); \
self->On##name##PropertyChanged(safe_cast<type>(args->OldValue), safe_cast<type>(args->NewValue)); \
} \
\
public:
// Attached DependencyProperty
#define DEPENDENCY_PROPERTY_ATTACHED(type, name) \
static type Get##name(Windows::UI::Xaml::DependencyObject ^ target) \
{ \
return safe_cast<type>(target->GetValue(s_##name##Property)); \
} \
static void Set##name(Windows::UI::Xaml::DependencyObject ^ target, type value) \
{ \
target->SetValue(s_##name##Property, value); \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyPropertyAttached<DependencyPropertiesOwner, type>(L#name); \
} \
\
public:
#define DEPENDENCY_PROPERTY_ATTACHED_WITH_DEFAULT(type, name, defaultValue) \
static type Get##name(Windows::UI::Xaml::DependencyObject ^ target) \
{ \
return safe_cast<type>(target->GetValue(s_##name##Property)); \
} \
static void Set##name(Windows::UI::Xaml::DependencyObject ^ target, type value) \
{ \
target->SetValue(s_##name##Property, value); \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyPropertyAttached<DependencyPropertiesOwner, type>(L#name, defaultValue); \
} \
\
public:
#define DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(type, name) \
static type Get##name(Windows::UI::Xaml::DependencyObject ^ target) \
{ \
return safe_cast<type>(target->GetValue(s_##name##Property)); \
} \
static void Set##name(Windows::UI::Xaml::DependencyObject ^ target, type value) \
{ \
target->SetValue(s_##name##Property, value); \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyPropertyAttachedWithCallback<DependencyPropertiesOwner, type>(L#name, &On##name##PropertyChangedImpl); \
} \
static void On##name##PropertyChangedImpl(Windows::UI::Xaml::DependencyObject ^ sender, Windows::UI::Xaml::DependencyPropertyChangedEventArgs ^ args) \
{ \
On##name##PropertyChanged(sender, safe_cast<type>(args->OldValue), safe_cast<type>(args->NewValue)); \
} \
\
public:
#define DEPENDENCY_PROPERTY_ATTACHED_WITH_DEFAULT_AND_CALLBACK(type, name, defaultValue) \
static type Get##name(Windows::UI::Xaml::DependencyObject ^ target) \
{ \
return safe_cast<type>(target->GetValue(s_##name##Property)); \
} \
static void Set##name(Windows::UI::Xaml::DependencyObject ^ target, type value) \
{ \
target->SetValue(s_##name##Property, value); \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ s_##name##Property; \
\
public: \
static property Windows::UI::Xaml::DependencyProperty ^ name##Property \
{ \
Windows::UI::Xaml::DependencyProperty ^ get() { \
assert(s_##name##Property); \
return s_##name##Property; \
} \
} \
\
private: \
static Windows::UI::Xaml::DependencyProperty ^ Initialize##name##Property() \
{ \
return Utils::RegisterDependencyPropertyAttachedWithCallback<DependencyPropertiesOwner, type>(L#name, defaultValue, &On##name##PropertyChangedImpl); \
} \
static void On##name##PropertyChangedImpl(Windows::UI::Xaml::DependencyObject ^ sender, Windows::UI::Xaml::DependencyPropertyChangedEventArgs ^ args) \
{ \
On##name##PropertyChanged(sender, safe_cast<type>(args->OldValue), safe_cast<type>(args->NewValue)); \
} \
\
public:
// This goes into the cpp to initialize the static variable
#define DEPENDENCY_PROPERTY_INITIALIZATION(owner, name) Windows::UI::Xaml::DependencyProperty ^ owner::s_##name##Property = owner::Initialize##name##Property();
namespace CalculatorApp
{
template <typename T>
T from_cx(Platform::Object ^ from)
{
T to{ nullptr };
winrt::check_hresult(reinterpret_cast<::IUnknown*>(from)->QueryInterface(winrt::guid_of<T>(), reinterpret_cast<void**>(winrt::put_abi(to))));
return to;
}
}
// There's no standard definition of equality for Windows::UI::Color structs.
// Define a template specialization for std::equal_to.
template<>
class std::equal_to<Windows::UI::Color>
{
public:
bool operator()(const Windows::UI::Color& color1, const Windows::UI::Color& color2)
{
return Utils::AreColorsEqual(color1, color2);
}
};
bool operator==(const Windows::UI::Color& color1, const Windows::UI::Color& color2);
bool operator!=(const Windows::UI::Color& color1, const Windows::UI::Color& color2);