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nxist2202005014 2 years ago
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FlowerListFrame.java
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package flowershop.view;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
import flowershop.model.Flower;
import flowershop.dao.FlowerDao;
import flowershop.daoimpl.FlowerDaoImpl;
//商品列表窗口
public class FlowerListFrame extends MyFrame{
private JTable table;
private JLabel lblImage;
private JLabel lblPrice;
private JLabel lblDescn;
//商品列表集合
private List<Flower> flowers =null;
//创建商品Dao对象
private FlowerDao dao = new FlowerDaoImpl();
// 购物车，键是选择的商品Id，值是商品的数量
private Map<String,Integer> cart = new HashMap<String,Integer>();
// 选择的商品索引
private int selectedRow = -1;
public FlowerListFrame(String title, int width, int height) {
super(title, width, height);
// TODO 自动生成的构造函数存根
flowers = dao.findAll();
//添加顶部搜索面板
getContentPane().add(getSearchPanel(),BorderLayout.NORTH);
//创建分栏面板
JSplitPane splitPane = new JSplitPane();
//设置指定分割条位置，从窗格的左边到分割条的右边
splitPane.setDividerLocation(600);
//设置左侧面板
splitPane.setLeftComponent(getLeftPanel());
//设置右侧面板
splitPane.setRightComponent(getRightPanel());
//把分栏面板添加到内容面板
getContentPane().add(splitPane,BorderLayout.CENTER);
}
//初始化右侧面板
private JPanel getRightPanel() {
JPanel rightPanel = new JPanel();
rightPanel.setBackground(new Color(255, 220, 230));
rightPanel.setLayout(new GridLayout(2,1,0,20));
lblImage = new JLabel();
rightPanel.add(lblImage);
lblImage.setHorizontalAlignment(SwingConstants.CENTER);
JPanel detailPanel = new JPanel();
detailPanel.setBackground(new Color(255, 220, 230));
rightPanel.add(detailPanel);
detailPanel.setLayout(new GridLayout(8,1,0,5));
JSeparator separator_1 = new JSeparator();
detailPanel.add(separator_1);
lblPrice = new JLabel();
detailPanel.add(lblPrice);
//设置字体
lblPrice.setFont(new Font("微软雅黑",Font.PLAIN,16));
lblDescn = new JLabel();
detailPanel.add(lblDescn);
//设置字体
lblDescn.setFont(new Font("微软雅黑",Font.PLAIN,16));
JSeparator separator_2 = new JSeparator();
detailPanel.add(separator_2);
JButton btnAdd = new JButton("添加到购物车");
btnAdd.setFont(new Font("微软雅黑",Font.PLAIN,15));
detailPanel.add(btnAdd);
//布局占位使用
JLabel lb1 =new JLabel("");
detailPanel.add(lb1);
JButton btnCheck = new JButton("查看购物车");
btnCheck.setFont(new Font("微软雅黑",Font.PLAIN,15));
detailPanel.add(btnCheck);
//注册【添加到购物车】按钮的ActionEvent事件监听器
btnAdd.addActionListener(e ->{
if(selectedRow <0) {
return;
}
//添加商品到购物车处理
Flower selectFlower = flowers.get(selectedRow);
String productid = selectFlower.getProductid();
if(cart.containsKey(productid)) {//购物车中已经有该商品
//获得商品数量
Integer quantity = cart.get(productid);
cart.put(productid, ++quantity);
}else {//购物车中还没有还商品
cart.put(productid, 1);
}
System.out.println(cart);
});
// //注册【查看到购物车】按钮的ActionEvent事件监听器
btnCheck.addActionListener(e->{
CartFrame cartFrame = new CartFrame(cart,this);
cartFrame.setVisible(true);
this.setVisible(false);
});
return rightPanel;
}
//初始化左侧面板
private JScrollPane getLeftPanel() {
JScrollPane leftScrollPane = new JScrollPane();
//将表格作为滚动面板的各个视口试图
leftScrollPane.setViewportView(getTable());
return leftScrollPane;
}
//初始化左侧面板中的表格控件
private JTable getTable() {
FlowerTableModel model = new FlowerTableModel(this.flowers);
if(table == null) {
table = new JTable(model);
//设置表中内容字体
table.setFont(new Font("微软雅黑",Font.PLAIN,16));
//设置表列标题字体
table.getTableHeader().setFont(new Font("微软雅黑",Font.PLAIN,16));
//设置表行高
table.setRowHeight(51);
table.setRowSelectionAllowed(true);
table.setBackground(new Color(250,220,230));
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
ListSelectionModel rowSelectionModel = table.getSelectionModel();
rowSelectionModel.addListSelectionListener(e ->{
//只处理鼠标释放
if(e.getValueIsAdjusting()) {
return;
}
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
selectedRow = lsm.getMinSelectionIndex();
if(selectedRow < 0) {
return;
}
//更新右侧面板内容
Flower f = flowers.get(selectedRow);
String petImage = String.format("/image/%s",f.getImage());
ImageIcon icon = new ImageIcon(FlowerListFrame.class.getResource(petImage));
lblImage.setIcon(icon);
String descn = f.getDescn();
lblDescn.setText("花语: "+ descn);
double price = f.getPrice();
String sprice = String.format("单支价格：%.2f",price);
lblPrice.setText(sprice);
});
}else {
table.setModel(model);
}
return table;
}
//初始化搜索面板
private JPanel getSearchPanel() {
//TODO
JPanel searchPanel = new JPanel();
searchPanel.setBackground(new Color(255, 220, 230));
FlowLayout flowLayout = (FlowLayout) searchPanel.getLayout();
flowLayout.setVgap(20);
flowLayout.setHgap(40);
JLabel lbl = new JLabel("请选择花卉类别：");
lbl.setFont(new Font("微软雅黑",Font.PLAIN,15));
searchPanel.add(lbl);
String[] categorys= {"春季花卉","夏季花卉","秋季花卉","冬季花卉"};
JComboBox comboBox = new JComboBox(categorys);
comboBox.setFont(new Font("微软雅黑",Font.PLAIN,15));
searchPanel.add(comboBox);
JButton btnGo = new JButton("查询");
btnGo.setFont(new Font("微软雅黑", Font.PLAIN, 15));
searchPanel.add(btnGo);
JButton btnReset = new JButton("重置");
btnReset.setFont(new Font("微软雅黑",Font.PLAIN,15));
searchPanel.add(btnReset);
//注册查询按钮的ActionEvent事件监听器
btnGo.addActionListener(e ->{
//所选择的类别
String category = (String) comboBox.getSelectedItem();
//按照类别查询
flowers = dao.findByCategory(category);
TableModel model = new FlowerTableModel(flowers);
table.setModel(model);
});
// 注册重置按钮的ActionEvent事件监听器
btnReset.addActionListener(e -> {
flowers = dao.findAll();
TableModel model = new FlowerTableModel(flowers);
table.setModel(model);
});
return searchPanel;
}
}
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