Dépôt officiel du code source de l'ERP OpenConcerto

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 2011-2019 OpenConcerto, by ILM Informatique. All rights reserved.
 * 
 * The contents of this file are subject to the terms of the GNU General Public License Version 3
 * only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
 * copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each file.
 */
 
 package org.openconcerto.erp.core.sales.pos.ui;

import org.openconcerto.erp.core.sales.pos.model.Article;
import org.openconcerto.ui.touch.ScrollableList;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.List;

import javax.swing.JPanel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class ArticleSelectorDialogPanel extends JPanel {

    private final ScrollableList list;
    private final CaisseControler controller;
    private final ArticleSelectionListener listener;

    public ArticleSelectorDialogPanel(CaisseFrame caisseFrame, List<Article> articles, ArticleSelectionListener articleSelectionListener) {
        this.listener = articleSelectionListener;
        this.controller = caisseFrame.getControler();

        this.setLayout(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.weightx = 1;
        c.weighty = 1;
        c.fill = GridBagConstraints.BOTH;

        ArticleModel model = new ArticleModel();
        model.setArticles(articles);

        final Font f;
        if (controller.getPOSConf().getScreenWidth() < 1280) {
            f = new Font("Arial", Font.PLAIN, 18);
        } else {
            f = new Font("Arial", Font.PLAIN, 21);
        }

        this.list = new ScrollableList(model) {
            int maxStringWidth = 0;

            @Override
            public void paint(Graphics g) {

                if (this.maxStringWidth == 0) {
                    g.setFont(f);
                    int w = this.getWidth();
                    int priceWidth = (int) g.getFontMetrics(f).getStringBounds("9999 €", g).getWidth();
                    int maxW = w - priceWidth - getLeftMargin();
                    String str = "a";
                    int strW;
                    do {
                        strW = (int) g.getFontMetrics(f).getStringBounds(str, g).getWidth();
                        str += "a";
                    } while (strW < maxW);

                    this.maxStringWidth = Math.max(1, str.length() - 1);

                }
                super.paint(g);
                g.setColor(Color.GRAY);
                g.drawLine(0, 0, 0, this.getHeight());
            }

            @Override
            public void paintCell(Graphics g, Object object, int index, boolean isSelected, int posY) {
                Article article = (Article) object;
                ArticleSelector.paintArticle(f, g, article, isSelected, posY, this.getWidth(), this.getCellHeight(), this.maxStringWidth, getLeftMargin(), false);

            }
        };

        this.list.setFixedCellHeight(64);
        this.list.setOpaque(true);
        this.add(this.list, c);
        this.list.addListSelectionListener(new ListSelectionListener() {

            @Override
            public void valueChanged(ListSelectionEvent e) {
                Object sel = list.getSelectedValue();
                if (sel != null && !e.getValueIsAdjusting()) {
                    Article article = (Article) sel;
                    controller.setArticleSelected(article);
                }

            }
        });

        this.list.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {

                Object sel = list.getSelectedValue();
                if (sel != null) {
                    Article article = (Article) sel;
                    articledSelected(article);
                }
            }
        });

    }

    public void articledSelected(Article a) {
        listener.articleSelected(a);
    }

    public int getLeftMargin() {
        if (this.controller.getPOSConf().getScreenWidth() < 1280) {
            return 3;
        }
        return 10;
    }

    @Override
    public Dimension getPreferredSize() {
        int w = Math.min(1000, controller.getPOSConf().getScreenWidth());
        w = (int) (w * 0.8f);
        int h = (int) (0.8 * controller.getPOSConf().getScreenHeight());
        return new Dimension(w, h);
    }
}