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Improved performance of drawing borders

0.8
Bruno Van de Velde 2017-01-18 22:10:09 +01:00
parent 3e3e04089e
commit 96b9e0bccc
1 changed files with 25 additions and 20 deletions
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45
src/TGUI/Widget.cpp
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@ -777,35 +777,40 @@ namespace tgui
sf::Vector2f size,
sf::Color color) const
{
sf::RectangleShape border;
border.setFillColor(Color::calcColorOpacity(color, m_opacityCached));
// If size is too small then draw entire size as border
if ((size.x <= borders.left + borders.right) || (size.y <= borders.top + borders.bottom))
{
sf::RectangleShape border;
border.setFillColor(Color::calcColorOpacity(color, m_opacityCached));
border.setSize({size.x, size.y});
target.draw(border, states);
}
else // Draw borders in the normal way
{
// Draw left border
border.setSize({borders.left, size.y - borders.bottom});
target.draw(border, states);
//////////////////////
// 0--1/8---------6 //
// | | //
// | 9------7 | //
// | | | | //
// | | | | //
// | 3------5 | //
// | | //
// 2--------------4 //
//////////////////////
std::vector<sf::Vertex> m_vertices = {
{{0, 0}, color},
{{borders.left, 0}, color},
{{0, size.y}, color},
{{borders.left, size.y - borders.bottom}, color},
{{size.x, size.y}, color},
{{size.x - borders.right, size.y - borders.bottom}, color},
{{size.x, 0}, color},
{{size.x - borders.right, borders.top}, color},
{{borders.left, 0}, color},
{{borders.left, borders.top}, color},
};
// Draw top border
border.setSize({size.x - borders.left, borders.top});
border.setPosition(borders.left, 0);
target.draw(border, states);
// Draw right border
border.setSize({borders.right, size.y - borders.top});
border.setPosition(size.x - borders.right, borders.top);
target.draw(border, states);
// Draw bottom border
border.setSize({size.x - borders.right, borders.bottom});
border.setPosition(0, size.y - borders.bottom);
target.draw(border, states);
target.draw(m_vertices.data(), m_vertices.size(), sf::PrimitiveType::TrianglesStrip, states);
}
}