From aea2950aab53fa171d073d5e001e0419098ab82d Mon Sep 17 00:00:00 2001 From: dec05eba Date: Sat, 12 Jun 2021 02:12:22 +0200 Subject: Add drop shadow --- src/RoundedRectangle.cpp | 62 +++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 56 insertions(+), 6 deletions(-) (limited to 'src/RoundedRectangle.cpp') diff --git a/src/RoundedRectangle.cpp b/src/RoundedRectangle.cpp index 4aad699..596d980 100644 --- a/src/RoundedRectangle.cpp +++ b/src/RoundedRectangle.cpp @@ -8,17 +8,38 @@ namespace QuickMedia { radius(radius), pos(0.0f, 0.0f), size(size), rounded_rectangle_shader(rounded_rectangle_shader), band_color(sf::Color::Transparent) { assert(rounded_rectangle_shader); - vertices[0].color = color; - vertices[1].color = color; - vertices[2].color = color; - vertices[3].color = color; - vertices[0].texCoords = sf::Vector2f(0.0f, 0.0f); vertices[1].texCoords = sf::Vector2f(1.0f, 0.0f); vertices[2].texCoords = sf::Vector2f(1.0f, 1.0f); vertices[3].texCoords = sf::Vector2f(0.0f, 1.0f); - + set_color(color); set_size(size); + + const sf::Color shadow_color(0, 0, 0, 50); + + // Top + drop_shadow_vertices[0].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[1].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[2].color = shadow_color; + drop_shadow_vertices[3].color = shadow_color; + + // Bottom + drop_shadow_vertices[4].color = shadow_color; + drop_shadow_vertices[5].color = shadow_color; + drop_shadow_vertices[6].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[7].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + + // Left + drop_shadow_vertices[8].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[9].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[10].color = shadow_color; + drop_shadow_vertices[11].color = shadow_color; + + // Right + drop_shadow_vertices[12].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[13].color = sf::Color(shadow_color.r, shadow_color.g, shadow_color.b, 0); + drop_shadow_vertices[14].color = shadow_color; + drop_shadow_vertices[15].color = shadow_color; } void RoundedRectangle::set_position(sf::Vector2f pos) { @@ -27,6 +48,33 @@ namespace QuickMedia { vertices[1].position = pos + sf::Vector2f(size.x, 0.0f); vertices[2].position = pos + sf::Vector2f(size.x, size.y); vertices[3].position = pos + sf::Vector2f(0.0f, size.y); + + const sf::Color shadow_color(0, 0, 0, 50); + const float shadow_radius = 5.0f; + + // Top + drop_shadow_vertices[0].position = pos + sf::Vector2f(radius*0.5f, 0.0f) - sf::Vector2f(0.0f, shadow_radius); + drop_shadow_vertices[1].position = pos + sf::Vector2f(size.x - radius*0.5f, 0.0f) - sf::Vector2f(0.0f, shadow_radius); + drop_shadow_vertices[2].position = pos + sf::Vector2f(size.x - radius*0.5f, 0.0f); + drop_shadow_vertices[3].position = pos + sf::Vector2f(radius*0.5f, 0.0f); + + // Bottom + drop_shadow_vertices[4].position = pos + sf::Vector2f(radius*0.5f, size.y); + drop_shadow_vertices[5].position = pos + size - sf::Vector2f(radius*0.5f, 0.0f); + drop_shadow_vertices[6].position = pos + size - sf::Vector2f(radius*0.5f, 0.0f) + sf::Vector2f(0.0f, shadow_radius); + drop_shadow_vertices[7].position = pos + sf::Vector2f(radius*0.5f, size.y) + sf::Vector2f(0.0f, shadow_radius); + + // Left + drop_shadow_vertices[8].position = pos + sf::Vector2f(-shadow_radius, size.y - radius*0.5f); + drop_shadow_vertices[9].position = pos + sf::Vector2f(-shadow_radius, radius*0.5f); + drop_shadow_vertices[10].position = pos + sf::Vector2f(0.0f, radius*0.5f); + drop_shadow_vertices[11].position = pos + sf::Vector2f(0.0f, size.y - radius*0.5f); + + // Right + drop_shadow_vertices[12].position = pos + sf::Vector2f(size.x + shadow_radius, radius*0.5f); + drop_shadow_vertices[13].position = pos + sf::Vector2f(size.x + shadow_radius, size.y - radius*0.5f); + drop_shadow_vertices[14].position = pos + sf::Vector2f(size.x, size.y - radius*0.5f); + drop_shadow_vertices[15].position = pos + sf::Vector2f(size.x, radius*0.5f); } void RoundedRectangle::set_size(sf::Vector2f size) { @@ -59,6 +107,8 @@ namespace QuickMedia { } void RoundedRectangle::draw(sf::RenderTarget &target) { + target.draw(drop_shadow_vertices, 16, sf::Quads); + // TODO: Remove these for optimizations. Also do the same in other places where setUniform is called rounded_rectangle_shader->setUniform("radius", radius); rounded_rectangle_shader->setUniform("band_pos", band_pos); -- cgit v1.2.3