From b4f401ce7599b9af40bd7d07796c727ad20ee5c0 Mon Sep 17 00:00:00 2001
From: nxist2202005014 <1463859337@qq.com>
Date: Wed, 26 Jun 2024 09:54:27 +0800
Subject: [PATCH] ADD file via upload

---
 CartTableModel.java | 76 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 CartTableModel.java

diff --git a/CartTableModel.java b/CartTableModel.java
new file mode 100644
index 0000000..7156b5e
--- /dev/null
+++ b/CartTableModel.java
@@ -0,0 +1,76 @@
+package flowershop.view;
+
+import javax.swing.table.AbstractTableModel;
+
+//购物车表格模型
+public class CartTableModel extends AbstractTableModel {
+
+	// 表格列名columnNames
+	private String[] columnNames = { "编号", "花卉名", "单支价格", "数量", "应付金额" };
+
+	// 表格中数据保存在data二维数组中
+	private Object[][] data = null;
+
+	public CartTableModel(Object[][] data) {
+		this.data = data;
+	}
+
+	// 返回列数
+	@Override
+	public int getColumnCount() {
+		return columnNames.length;
+	}
+
+	// 返回行数
+	@Override
+	public int getRowCount() {
+		return data.length;
+	}
+
+	// 获得某行某列的数据，而数据保存在对象数组data中
+	@Override
+	public Object getValueAt(int rowIndex, int columnIndex) {
+		return data[rowIndex][columnIndex];
+	}
+
+	@Override
+	public String getColumnName(int columnIndex) {
+		return columnNames[columnIndex];
+	}
+
+	@Override
+	public boolean isCellEditable(int rowIndex, int columnIndex) {
+		// 数量列可以修改
+		if (columnIndex == 3) {
+			return true;
+		}
+		return false;
+	}
+
+	@Override
+	public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
+		// 只允许修改数量列
+		if (columnIndex != 3) {
+			return;
+		}
+		try {
+			// 从表中获得修改之后的商品数量，从表而来的数据都String类型
+			int quantity = new Integer((String) aValue);
+			// 商品数量不能小于0
+			if (quantity < 0) {
+				return;
+			}
+			// 更新数量列
+			data[rowIndex][3] = quantity;
+			// 计算商品应付金额
+			double price = (double) data[rowIndex][2];
+			double totalPrice = price * quantity;
+			// 更新商品应付金额列
+			data[rowIndex][4] = new Double(totalPrice);
+
+		} catch (Exception e) {
+		}
+	}
+
+}
+