94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
#include "Menu.hpp"
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#include <stdexcept>
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using namespace gui;
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Menu::Menu() : Container(glm::vec2(1)){
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}
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bool Menu::has(const std::string& name) {
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return pages.find(name) != pages.end() ||
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pageSuppliers.find(name) != pageSuppliers.end();
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}
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void Menu::addPage(std::string name, std::shared_ptr<UINode> panel) {
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pages[name] = Page{name, panel};
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}
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void Menu::addSupplier(std::string name, supplier<std::shared_ptr<UINode>> pageSupplier) {
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pageSuppliers[name] = pageSupplier;
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}
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std::shared_ptr<UINode> Menu::fetchPage(const std::string& name) {
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auto found = pages.find(name);
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if (found == pages.end()) {
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auto supplier = pageSuppliers.find(name);
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if (supplier == pageSuppliers.end()) {
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if (pagesLoader) {
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return pagesLoader(name);
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}
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return nullptr;
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} else {
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return supplier->second();
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// supplied pages caching is not implemented
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}
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} else {
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return found->second.panel;
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}
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}
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void Menu::setPage(std::string name, bool history) {
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Page page {name, fetchPage(name)};
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if (page.panel == nullptr) {
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throw std::runtime_error("no page found");
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}
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setPage(page, history);
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}
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void Menu::setPage(Page page, bool history) {
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if (current.panel) {
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Container::remove(current.panel);
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}
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if (history) {
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pageStack.push(current);
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}
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current = page;
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Container::add(current.panel);
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setSize(current.panel->getSize());
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}
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void Menu::back() {
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if (pageStack.empty())
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return;
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Page page = pageStack.top();
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pageStack.pop();
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auto updated = fetchPage(page.name);
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if (updated) {
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page.panel = updated;
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}
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setPage(page, false);
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}
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void Menu::setPageLoader(page_loader_func loader) {
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pagesLoader = loader;
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}
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Page& Menu::getCurrent() {
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return current;
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}
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void Menu::clearHistory() {
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pageStack = std::stack<Page>();
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}
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void Menu::reset() {
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clearHistory();
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if (current.panel) {
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Container::remove(current.panel);
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current = Page{"", nullptr};
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}
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}
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