mirror of
https://github.com/RGBCube/serenity
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cb9cac4e40
This allows us to use TRY() in decoding helpers, leading to a nice reduction in line count.
73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <LibGfx/Point.h>
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#include <LibGfx/Rect.h>
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#include <LibIPC/Decoder.h>
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#include <LibIPC/Encoder.h>
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namespace Gfx {
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template<typename T>
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void Point<T>::constrain(Rect<T> const& rect)
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{
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m_x = AK::clamp<T>(x(), rect.left(), rect.right());
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m_y = AK::clamp<T>(y(), rect.top(), rect.bottom());
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}
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template<typename T>
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[[nodiscard]] Point<T> Point<T>::end_point_for_aspect_ratio(Point<T> const& previous_end_point, float aspect_ratio) const
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{
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VERIFY(aspect_ratio > 0);
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const T x_sign = previous_end_point.x() >= x() ? 1 : -1;
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const T y_sign = previous_end_point.y() >= y() ? 1 : -1;
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T dx = AK::abs(previous_end_point.x() - x());
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T dy = AK::abs(previous_end_point.y() - y());
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if (dx > dy) {
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dy = (T)((float)dx / aspect_ratio);
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} else {
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dx = (T)((float)dy * aspect_ratio);
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}
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return { x() + x_sign * dx, y() + y_sign * dy };
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}
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template<>
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String IntPoint::to_string() const
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{
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return String::formatted("[{},{}]", x(), y());
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}
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template<>
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String FloatPoint::to_string() const
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{
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return String::formatted("[{},{}]", x(), y());
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}
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}
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namespace IPC {
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bool encode(Encoder& encoder, Gfx::IntPoint const& point)
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{
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encoder << point.x() << point.y();
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return true;
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}
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ErrorOr<void> decode(Decoder& decoder, Gfx::IntPoint& point)
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{
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int x = 0;
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int y = 0;
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TRY(decoder.decode(x));
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TRY(decoder.decode(y));
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point = { x, y };
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return {};
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}
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}
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template class Gfx::Point<int>;
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template class Gfx::Point<float>;
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