💿🐜 Antkeeper source code
https://antkeeper.com
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344 lines
6.8 KiB
344 lines
6.8 KiB
/*
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* Copyright (C) 2017 Christopher J. Howard
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*
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* This file is part of Antkeeper Source Code.
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*
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* Antkeeper Source Code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper Source Code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper Source Code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "menu.hpp"
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#include "ui.hpp"
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#include <algorithm>
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MenuItem::MenuItem(Menu* parent, std::size_t index):
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parent(parent),
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index(index),
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selectedCallback(nullptr),
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deselectedCallback(nullptr),
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activatedCallback(nullptr),
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valueChangedCallback(nullptr),
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valueIndex(0),
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nameLabel(nullptr),
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valueLabel(nullptr),
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rowContainer(nullptr)
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{
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nameLabel = new UILabel();
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nameLabel->setAnchor(Vector2(0.0f, 0.0f));
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valueLabel = new UILabel();
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valueLabel->setAnchor(Vector2(1.0f, 0.0f));
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rowContainer = new UIContainer();
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rowContainer->addChild(nameLabel);
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rowContainer->addChild(valueLabel);
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rowContainer->setMouseOverCallback(std::bind(&Menu::select, parent, index));
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rowContainer->setMouseMovedCallback(std::bind(&Menu::select, parent, index));
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rowContainer->setMousePressedCallback(std::bind(&Menu::activate, parent));
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}
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MenuItem::~MenuItem()
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{
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delete nameLabel;
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delete valueLabel;
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delete rowContainer;
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}
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void MenuItem::select()
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{
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if (selectedCallback != nullptr)
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{
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selectedCallback();
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}
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}
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void MenuItem::deselect()
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{
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if (deselectedCallback != nullptr)
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{
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deselectedCallback();
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}
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}
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void MenuItem::activate()
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{
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if (activatedCallback != nullptr)
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{
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activatedCallback();
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}
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}
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void MenuItem::setSelectedCallback(std::function<void()> callback)
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{
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this->selectedCallback = callback = callback;
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}
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void MenuItem::setDeselectedCallback(std::function<void()> callback)
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{
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this->deselectedCallback = callback;
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}
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void MenuItem::setActivatedCallback(std::function<void()> callback)
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{
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this->activatedCallback = callback;
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}
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void MenuItem::setValueChangedCallback(std::function<void(std::size_t)> callback)
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{
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this->valueChangedCallback = callback;
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}
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void MenuItem::setName(const std::string& text)
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{
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nameLabel->setText(text);
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parent->resize();
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}
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std::size_t MenuItem::addValue()
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{
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values.push_back(std::string());
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return (values.size() - 1);
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}
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void MenuItem::removeValues()
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{
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values.clear();
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valueIndex = 0;
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valueLabel->setText(std::string());
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parent->resize();
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}
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void MenuItem::setValueName(std::size_t index, const std::string& text)
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{
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values[index] = text;
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if (index == valueIndex)
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{
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valueLabel->setText(text);
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parent->resize();
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}
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}
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void MenuItem::setValueIndex(std::size_t index)
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{
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if (valueIndex != index)
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{
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valueIndex = index;
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valueLabel->setText(values[index]);
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if (valueChangedCallback != nullptr)
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{
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valueChangedCallback(index);
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}
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}
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}
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bool MenuItem::isSelected() const
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{
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return (parent->getSelectedItem() == this);
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}
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Menu::Menu():
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selectedItem(nullptr),
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enteredCallback(nullptr),
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exitedCallback(nullptr),
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font(nullptr),
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lineSpacing(1.0f),
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columnMargin(0.0f)
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{
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container = new UIContainer();
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resize();
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}
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Menu::~Menu()
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{
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removeItems();
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delete container;
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}
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void Menu::enter()
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{
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if (enteredCallback != nullptr)
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{
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enteredCallback();
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}
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}
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void Menu::exit()
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{
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if (exitedCallback != nullptr)
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{
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exitedCallback();
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}
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}
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MenuItem* Menu::addItem()
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{
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// Allocate item and add to items
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MenuItem* item = new MenuItem(this, items.size());
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items.push_back(item);
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// Set item fonts
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item->nameLabel->setFont(font);
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item->valueLabel->setFont(font);
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// Set item colors
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item->nameLabel->setTintColor(Vector4(1.0f, 1.0f, 1.0f, 0.35f));
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item->valueLabel->setTintColor(Vector4(1.0f, 1.0f, 1.0f, 0.35f));
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// Add item labels to UI container
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container->addChild(item->rowContainer);
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// Resize UI container
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resize();
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return item;
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}
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void Menu::removeItems()
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{
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for (MenuItem* item: items)
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{
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// Remove labels from UI container
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container->removeChild(item->rowContainer);
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delete item;
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}
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items.clear();
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resize();
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}
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void Menu::setEnteredCallback(std::function<void()> callback)
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{
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this->enteredCallback = callback;
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}
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void Menu::setExitedCallback(std::function<void()> callback)
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{
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this->exitedCallback = callback;
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}
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void Menu::setFont(Font* font)
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{
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this->font = font;
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for (MenuItem* item: items)
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{
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item->nameLabel->setFont(font);
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item->valueLabel->setFont(font);
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}
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resize();
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}
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void Menu::setLineSpacing(float spacing)
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{
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lineSpacing = spacing;
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resize();
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}
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void Menu::setColumnMargin(float margin)
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{
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columnMargin = margin;
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resize();
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}
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void Menu::deselect()
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{
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if (selectedItem != nullptr)
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{
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selectedItem->deselect();
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selectedItem->nameLabel->setTintColor(Vector4(1.0f, 1.0f, 1.0f, 0.35f));
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selectedItem->valueLabel->setTintColor(Vector4(1.0f, 1.0f, 1.0f, 0.35f));
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selectedItem = nullptr;
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}
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}
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void Menu::select(std::size_t index)
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{
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deselect();
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MenuItem* item = items[index];
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item->select();
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selectedItem = item;
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selectedItem->nameLabel->setTintColor(Vector4(1.0f, 1.0f, 1.0f, 1.0f));
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selectedItem->valueLabel->setTintColor(Vector4(1.0f, 1.0f, 1.0f, 1.0f));
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}
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void Menu::activate()
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{
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if (selectedItem != nullptr)
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{
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selectedItem->activate();
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}
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}
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void Menu::resize()
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{
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if (!font)
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{
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container->setDimensions(Vector2(0.0f));
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}
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else
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{
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// Determine maximum width of menu
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float menuWidth = 0.0f;
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// For each menu item
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for (std::size_t i = 0; i < items.size(); ++i)
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{
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const MenuItem* item = items[i];
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// Calculate width of item name label
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float nameLabelWidth = item->nameLabel->getDimensions().x;
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// For each item value
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for (std::size_t j = 0; j < item->getValueCount(); ++j)
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{
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// Calculate width of item value label
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float valueLabelWidth = font->getWidth(item->getValue(j).c_str());
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menuWidth = std::max<float>(menuWidth, nameLabelWidth + columnMargin + valueLabelWidth);
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}
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menuWidth = std::max<float>(menuWidth, nameLabelWidth);
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}
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Vector2 dimensions(menuWidth, 0.0f);
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for (std::size_t i = 0; i < items.size(); ++i)
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{
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const MenuItem* item = items[i];
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float translationY = static_cast<float>(static_cast<int>(font->getMetrics().getHeight() * lineSpacing * static_cast<float>(i)));
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item->rowContainer->setDimensions(Vector2(menuWidth, font->getMetrics().getHeight()));
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item->rowContainer->setTranslation(Vector2(0.0f, translationY));
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if (!i)
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{
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dimensions.y += font->getMetrics().getHeight();
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}
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else
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{
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dimensions.y += font->getMetrics().getHeight() * lineSpacing;
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}
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}
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container->setDimensions(dimensions);
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}
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}
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