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#include "../include/Tabs.hpp"
#include "../include/Body.hpp"
#include "../include/ResourceLoader.hpp"
#include "../include/Config.hpp"
#include "../include/Theme.hpp"
#include <SFML/Window/Event.hpp>
#include <SFML/Graphics/RenderWindow.hpp>
#include <cmath>
namespace QuickMedia {
static const float tab_text_size = std::floor(get_config().tab.font_size * get_config().scale * get_config().font_scale);
static const float tab_height = tab_text_size + std::floor(10.0f * get_config().scale);
static const float tab_min_width = 250.0f;
static const float tab_margin_x = 10.0f;
// static
float Tabs::get_height() {
return tab_height;
}
// static
float Tabs::get_shade_height() {
return tab_height + std::floor(10.0f * get_config().scale);
}
Tabs::Tabs(sf::Shader *rounded_rectangle_shader, sf::Color shade_color) : background(sf::Vector2f(1.0f, 1.0f), 10.0f, get_current_theme().selected_color, rounded_rectangle_shader), shade_color(shade_color) {
shade.setFillColor(shade_color);
}
Tabs::Tabs(sf::Shader *rounded_rectangle_shader) : Tabs(rounded_rectangle_shader, get_current_theme().shade_color) {}
int Tabs::add_tab(const std::string &title, Body *body) {
assert(body);
tabs.push_back({ sf::Text(title, *FontLoader::get_font(FontLoader::FontType::LATIN), tab_text_size), title, body} );
return tabs.size() - 1;
}
void Tabs::move_selected_tab(int new_tab) {
const int tab_diff = new_tab - selected_tab;
if(tab_diff > 0) {
while(selected_tab < new_tab) {
++selected_tab;
const float scroll_fixed = scroll + (tab_offset * width_per_tab);
if(scroll_fixed + tab_index_to_x_offset(selected_tab) + tab_background_width > container_width - tab_margin_x)
--tab_offset;
}
} else if(tab_diff < 0) {
while(selected_tab > new_tab) {
--selected_tab;
const float scroll_fixed = scroll + (tab_offset * width_per_tab);
if(scroll_fixed + tab_index_to_x_offset(selected_tab) + tab_background_width < tab_margin_x)
++tab_offset;
}
} else {
return;
}
if(on_change_tab)
on_change_tab(selected_tab);
}
void Tabs::on_event(sf::Event &event) {
if(event.type == sf::Event::KeyPressed && event.key.control && !tabs.empty()) {
bool move_left = (event.key.code == sf::Keyboard::Left || (event.key.alt && event.key.code == sf::Keyboard::H));
move_left |= (event.key.code == sf::Keyboard::Tab && event.key.shift);
bool move_right = (event.key.code == sf::Keyboard::Right || (event.key.alt && event.key.code == sf::Keyboard::L));
move_right |= (event.key.code == sf::Keyboard::Tab && !event.key.shift);
if(move_left) {
if(selected_tab > 0)
move_selected_tab(selected_tab - 1);
} else if(move_right) {
if(selected_tab < (int)tabs.size() - 1)
move_selected_tab(selected_tab + 1);
} else if(event.key.code >= sf::Keyboard::Num1 && event.key.code <= sf::Keyboard::Num9) {
const int tab_target = event.key.code - sf::Keyboard::Num1;
if(tab_target < (int)tabs.size())
move_selected_tab(tab_target);
}
}
}
static sf::View create_scissor_view(sf::Vector2f pos, sf::Vector2f size, const sf::Vector2f window_size) {
sf::View view(sf::FloatRect(0.0f, 0.0f, size.x, size.y));
view.setViewport(sf::FloatRect(
pos.x / (float)window_size.x, pos.y / (float)window_size.y,
size.x / (float)window_size.x, size.y / (float)window_size.y));
return view;
}
void Tabs::draw(sf::RenderWindow &window, sf::Vector2f pos, float width) {
if(width - tab_margin_x < 0.0f || tabs.empty()) return;
auto window_size = window.getSize();
container_width = width;
const int num_visible_tabs = std::min((int)tabs.size(), std::max(1, (int)(width / tab_min_width)));
width_per_tab = std::floor(width / num_visible_tabs);
const float tab_text_y = std::floor(pos.y + tab_height*0.5f - (tab_text_size + 5.0f*get_config().scale)*0.5f);
tab_background_width = std::floor(width_per_tab - tab_margin_x*2.0f);
background.set_size(sf::Vector2f(tab_background_width, tab_height));
if(shade_color != sf::Color::Transparent) {
shade.setSize(sf::Vector2f(width, get_shade_height()));
shade.setPosition(std::floor(pos.x), std::floor(pos.y));
window.draw(shade);
}
float scroll_fixed = scroll + (tab_offset * width_per_tab);
float overflow_last = (scroll_fixed + tab_index_to_x_offset(tabs.size() - 1) + tab_background_width) - (width - tab_margin_x);
if(overflow_last < 0.0f)
scroll_fixed -= overflow_last;
float overflow = (scroll_fixed + tab_index_to_x_offset(selected_tab) + tab_background_width) - (width - tab_margin_x);
float underflow = scroll_fixed + tab_index_to_x_offset(selected_tab);
if(overflow > 0.0f)
scroll_fixed -= overflow;
else if(underflow < 0.0f)
scroll_fixed -= underflow;
bool tabs_cutoff_left = false;
bool tabs_cutoff_right = false;
const auto start_pos = pos;
const sf::View prev_view = window.getView();
pos.x += scroll_fixed;
for(size_t i = 0; i < tabs.size(); ++i) {
const int index = i;
const float background_pos_x = std::floor(pos.x + tab_index_to_x_offset(i));
if(background_pos_x - start_pos.x >= width - tab_margin_x) {
tabs_cutoff_right = true;
break;
} else if(background_pos_x + tab_background_width - start_pos.x <= tab_margin_x) {
tabs_cutoff_left = true;
continue;
}
if((int)index == selected_tab) {
background.set_position(sf::Vector2f(background_pos_x, std::floor(pos.y)));
background.draw(window);
}
sf::Text &tab_text = tabs[index].text;
float text_pos_x = std::floor(pos.x + i*width_per_tab + width_per_tab*0.5f - tab_text.getLocalBounds().width*0.5f);
text_pos_x = std::max(text_pos_x, background_pos_x);
window.setView(create_scissor_view({ text_pos_x, tab_text_y }, { tab_background_width, tab_height }, { (float)window_size.x, (float)window_size.y }));
window.draw(tab_text);
window.setView(prev_view);
}
float lw = std::floor(25.0f * get_config().scale);
float lh = background.get_size().y;
float line_offset_y = std::floor(lw * 0.35f);
if(tabs_cutoff_left) {
sf::Vertex gradient_points[4];
gradient_points[0].position = sf::Vector2f(start_pos.x + tab_margin_x, start_pos.y);
gradient_points[1].position = sf::Vector2f(start_pos.x + tab_margin_x + lw, start_pos.y);
gradient_points[2].position = sf::Vector2f(start_pos.x + tab_margin_x + lw, start_pos.y + lh);
gradient_points[3].position = sf::Vector2f(start_pos.x + tab_margin_x, start_pos.y + lh);
gradient_points[0].color = shade_color;
gradient_points[1].color = sf::Color(shade_color.r, shade_color.g, shade_color.b, 10);
gradient_points[2].color = sf::Color(shade_color.r, shade_color.g, shade_color.b, 10);
gradient_points[3].color = shade_color;
window.draw(gradient_points, 4, sf::Quads);
sf::RectangleShape line(sf::Vector2f(std::floor(10.0f * get_config().scale), std::floor(2.0f * get_config().scale)));
line.setFillColor(get_current_theme().arrow_color);
line.setOrigin(line.getSize().x * 0.5f, line.getSize().y * 0.5f);
line.rotate(-45.0f);
line.setPosition(std::floor(start_pos.x + line.getLocalBounds().width), std::floor(pos.y + background.get_size().y * 0.5f - lh * 0.5f + line_offset_y));
window.draw(line);
line.rotate(-90.0f);
line.setPosition(std::floor(start_pos.x + line.getLocalBounds().width), std::floor(pos.y + background.get_size().y * 0.5f - lh * 0.5f + line_offset_y + std::floor(7.0f * get_config().scale)));
window.draw(line);
}
if(tabs_cutoff_right) {
sf::Vertex gradient_points[4];
gradient_points[0].position = sf::Vector2f(start_pos.x + width - lw - tab_margin_x, start_pos.y);
gradient_points[1].position = sf::Vector2f(start_pos.x + width, start_pos.y);
gradient_points[2].position = sf::Vector2f(start_pos.x + width, start_pos.y + lh);
gradient_points[3].position = sf::Vector2f(start_pos.x + width - lw - tab_margin_x, start_pos.y + lh);
gradient_points[0].color = sf::Color(shade_color.r, shade_color.g, shade_color.b, 10);
gradient_points[1].color = shade_color;
gradient_points[2].color = shade_color;
gradient_points[3].color = sf::Color(shade_color.r, shade_color.g, shade_color.b, 10);
window.draw(gradient_points, 4, sf::Quads);
sf::RectangleShape line(sf::Vector2f(std::floor(10.0f * get_config().scale), std::floor(2.0f * get_config().scale)));
line.setFillColor(get_current_theme().arrow_color);
line.setOrigin(line.getSize().x * 0.5f, line.getSize().y * 0.5f);
line.rotate(45.0f);
line.setPosition(std::floor(start_pos.x + width - lw*0.75f + line.getLocalBounds().width), std::floor(pos.y + background.get_size().y * 0.5f - lh * 0.5f + line_offset_y));
window.draw(line);
line.rotate(-90.0f);
line.setPosition(std::floor(start_pos.x + width - lw*0.75f + line.getLocalBounds().width), std::floor(pos.y + background.get_size().y * 0.5f - lh * 0.5f + line_offset_y + std::floor(7.0f * get_config().scale)));
window.draw(line);
}
}
void Tabs::set_text(int index, const std::string &text) {
if(index < 0 || index >= (int)tabs.size() || text == tabs[index].label_utf8) return;
tabs[index].text.setString(sf::String::fromUtf8(text.begin(), text.end()));
tabs[index].label_utf8 = text;
}
void Tabs::set_selected(int index) {
move_selected_tab(index);
}
int Tabs::get_selected() const {
return selected_tab;
}
float Tabs::tab_index_to_x_offset(int index) {
return std::floor(index*width_per_tab + tab_margin_x);
}
}
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