SFML/src/SFML/Window/Cursor.cpp at master · criptych/SFML · GitHub

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////////////////////////////////////////////////////////////

// SFML - Simple and Fast Multimedia Library

// This software is provided 'as-is', without any express or implied warranty.

// In no event will the authors be held liable for any damages arising from the use of this software.

// Permission is granted to anyone to use this software for any purpose,

// including commercial applications, and to alter it and redistribute it freely,

// subject to the following restrictions:

// 1. The origin of this software must not be misrepresented;

// you must not claim that you wrote the original software.

// If you use this software in a product, an acknowledgment

// in the product documentation would be appreciated but is not required.

// 2. Altered source versions must be plainly marked as such,

// and must not be misrepresented as being the original software.

// 3. This notice may not be removed or altered from any source distribution.

////////////////////////////////////////////////////////////

// Headers

////////////////////////////////////////////////////////////

#include <SFML/Window/Cursor.hpp>

#include <SFML/Window/CursorImpl.hpp>

#include <SFML/System/Err.hpp>

#include <SFML/System/Exception.hpp>

#include <SFML/System/Vector2.hpp>

#include <memory>

#include <ostream>

namespace sf

{

////////////////////////////////////////////////////////////

Cursor::Cursor() : m_impl(std::make_unique<priv::CursorImpl>())

{

}

////////////////////////////////////////////////////////////

Cursor::Cursor(const std::uint8_t* pixels, Vector2u size, Vector2u hotspot) : Cursor()

{

if ((pixels == nullptr) || (size.x == 0) || (size.y == 0))

throw sf::Exception("Failed to create cursor from pixels (invalid arguments)");

if (!m_impl->loadFromPixels(pixels, size, hotspot))

throw sf::Exception("Failed to create cursor from pixels");

}

////////////////////////////////////////////////////////////

Cursor::Cursor(Type type) : Cursor()

{

if (!m_impl->loadFromSystem(type))

throw sf::Exception("Failed to create cursor from type");

}

////////////////////////////////////////////////////////////

Cursor::~Cursor() = default;

////////////////////////////////////////////////////////////

Cursor::Cursor(Cursor&&) noexcept = default;

////////////////////////////////////////////////////////////

Cursor& Cursor::operator=(Cursor&&) noexcept = default;

////////////////////////////////////////////////////////////

std::optional<Cursor> Cursor::createFromPixels(const std::uint8_t* pixels, Vector2u size, Vector2u hotspot)

{

if ((pixels == nullptr) || (size.x == 0) || (size.y == 0))

{

err() << "Failed to create cursor from pixels (invalid arguments)" << std::endl;

return std::nullopt;

}

Cursor cursor;

if (!cursor.m_impl->loadFromPixels(pixels, size, hotspot))

{

// Error message generated in called function.

return std::nullopt;

}

return cursor;

}

////////////////////////////////////////////////////////////

std::optional<Cursor> Cursor::createFromSystem(Type type)

{

Cursor cursor;

if (!cursor.m_impl->loadFromSystem(type))

{

// Error message generated in called function.

return std::nullopt;

}

return cursor;

}

////////////////////////////////////////////////////////////

const priv::CursorImpl& Cursor::getImpl() const

{

return *m_impl;

}

} // namespace sf

SFML/src/SFML/Window/Cursor.cpp at master · criptych/SFML · GitHub

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