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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| //////////////////////////////////////////////////////////// | ||
| // | ||
| // 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. | ||
| // | ||
| //////////////////////////////////////////////////////////// | ||
|
|
||
| // | ||
| // https://github.com/SFML/SFML/wiki/Source%3A-Draw-Rounded-Rectangle | ||
| // | ||
| // ALTERATIONS FROM ORIGINAL | ||
| // - Added pragma to silence conversion warnings | ||
| // - Radius as Vector2f | ||
| // - Fallback to rectangle when corner point count is 1 | ||
| // - Math in radians | ||
| // | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| // Headers | ||
| //////////////////////////////////////////////////////////// | ||
| #include "rounded_rectangle_shape.hpp" | ||
| #include <cmath> | ||
|
|
||
| #pragma GCC diagnostic push | ||
| #pragma GCC diagnostic ignored "-Wconversion" | ||
| #pragma GCC diagnostic ignored "-Wdouble-promotion" | ||
| #pragma GCC diagnostic ignored "-Wfloat-conversion" | ||
|
|
||
| namespace sf | ||
| { | ||
| //////////////////////////////////////////////////////////// | ||
| RoundedRectangleShape::RoundedRectangleShape(const Vector2f& size, const Vector2f& radius, unsigned int cornerPointCount) | ||
| { | ||
| m_size = size; | ||
| m_radius = radius; | ||
| m_corner_point_count = cornerPointCount; | ||
| update(); | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| void RoundedRectangleShape::setSize(const Vector2f& size) | ||
| { | ||
| m_size = size; | ||
| update(); | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| const Vector2f& RoundedRectangleShape::getSize() const | ||
| { | ||
| return m_size; | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| void RoundedRectangleShape::setCornerRadius(const Vector2f& radius) | ||
| { | ||
| m_radius = radius; | ||
| update(); | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| const Vector2f& RoundedRectangleShape::getCornerRadius() const | ||
| { | ||
| return m_radius; | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| void RoundedRectangleShape::setCornerPointCount(unsigned int count) | ||
| { | ||
| m_corner_point_count = count; | ||
| update(); | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| std::size_t RoundedRectangleShape::getPointCount() const | ||
| { | ||
| return m_corner_point_count*4; | ||
| } | ||
|
|
||
| //////////////////////////////////////////////////////////// | ||
| sf::Vector2f RoundedRectangleShape::getPoint(std::size_t index) const | ||
| { | ||
| if(m_corner_point_count == 1) | ||
| { | ||
| switch (index) | ||
| { | ||
| default: | ||
| case 0: return Vector2f(0, 0); | ||
| case 1: return Vector2f(m_size.x, 0); | ||
| case 2: return Vector2f(m_size.x, m_size.y); | ||
| case 3: return Vector2f(0, m_size.y); | ||
| } | ||
| } | ||
|
|
||
| if(index >= m_corner_point_count*4) | ||
| return sf::Vector2f(0,0); | ||
|
|
||
| sf::Vector2f center; | ||
| unsigned int centerIndex = index/m_corner_point_count; | ||
| static const float half_pi = 3.141592654f / 2.0f; | ||
| float angle = (index-centerIndex) * half_pi / (m_corner_point_count-1); | ||
|
|
||
| switch(centerIndex) | ||
| { | ||
| case 0: center.x = m_size.x - m_radius.x; center.y = m_radius.y; break; | ||
| case 1: center.x = m_radius.x; center.y = m_radius.y; break; | ||
| case 2: center.x = m_radius.x; center.y = m_size.y - m_radius.y; break; | ||
| case 3: center.x = m_size.x - m_radius.x; center.y = m_size.y - m_radius.y; break; | ||
| } | ||
|
|
||
| return sf::Vector2f(m_radius.x*cos(angle)+center.x, -m_radius.y*sin(angle)+center.y); | ||
| } | ||
| } // namespace sf | ||
|
|
||
| #pragma GCC diagnostic pop |
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