在JTable中为每一行显示不同的图像 [英] Show different image for each row in JTable
问题描述
我正在构建一个应用程序来管理我项目的商店产品。我遇到了问题,我真的需要你的想法来解决它。
我使用DefaultTableCellRenderer在主屏幕的产品基本信息表中成功显示图像。但我只能为所有产品显示1张图片。每个产品都有不同的图像,所以我需要在产品基本信息JTable中为每一行显示不同的图像。
这是我工作的一些部分。 />
这是我的DefaultTableCellRenderer扩展类:
I'm building an application to manage a store's product for my project. I'm facing a problem and I really need your idea to solve it.
I successfully show image in product basic info table at the main screen using DefaultTableCellRenderer. But I can only show 1 image for all product. Each product has a different image, so I need to display different image for each row in the product basic info JTable.
Here is some pieces of my work.
This is my DefaultTableCellRenderer extended class:
class ImageRenderer extends DefaultTableCellRenderer {
JLabel lbl = new JLabel();
ImageIcon icon = new ImageIcon("./src/comicbookandgamingzone/productpicture/NFS-Shift-2-Unleashed-Limited-Edition-Revealed-2.jpg");
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
lbl.setText((String) value);
lbl.setIcon(icon);
lbl.setBounds(0, 0, 100, 100);
return lbl;
}
}
定制产品基本信息表型号
The custom product basic info table model
class ProductTableModel extends AbstractTableModel{
String[] colname = {"ID","Picture","Name","Cost","In stock"};
ArrayList<Product> list;
public ProductTableModel(ArrayList<Product> prolist){
this.list=prolist;
}
public String getColumnName(int col){
return colname[col];
}
@Override
public int getRowCount() {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
return list.size();
}
@Override
public int getColumnCount() {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
return colname.length;
}
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
switch(columnIndex){
case 0: return list.get(rowIndex).ID;
case 1: return list.get(rowIndex).Picture;
case 2: return list.get(rowIndex).Name;
case 3: return list.get(rowIndex).Cost;
case 4: return list.get(rowIndex).Stock;
default : return null;
}
}
......并且在节目结果方法中
...and in the show result method
public void ShowResult(ArrayList<Product> list){
tabProduct.setModel(new ProductTableModel(list));
tabProduct.getColumnModel().getColumn(1).setCellRenderer(new ImageRenderer());
tabProduct.setRowHeight(100);
}
这是我的SQL创建表脚本。我将产品图像的路径存储在数据库中
This is my SQL create table script. I store the path of the product image in database
create table ProductDetails
(
ProductID int identity (1,1) not null,
ProductTypeID int foreign key references ProductType(TypeID),
ProductName text,
ProductPicture text,
ProductCost float,
ProductPoint int,
ProductStock int,
primary key (ProductID)
)
推荐答案
在此处阅读: http://docs.oracle.com/javase/tutorial/uiswing/components/table.html [ ^ ]
为什么ImageRenderer(*)得到一个被转换为String的对象(显然是一个文本?)它应该是一个ProductPicture类型的对象。
*小心这些名字,有些可能已经被采取并且能够引起混淆。最好使用像MyImageRenderer或ProductImageRenderer这样的后缀。
Read here: http://docs.oracle.com/javase/tutorial/uiswing/components/table.html[^]
Why does you ImageRenderer(*) get an Object that is casted to String (obviously a text?) It should be served an object of type ProductPicture.
* be careful with those names, some might be already taken and are able to cause confusion. Better to use a suffix like "MyImageRenderer" or "ProductImageRenderer".
这对你有帮助...
http://stackoverflow.com/questions/7049494/how- to-get-icon-from-jtable [ ^ ]
this will help you...
http://stackoverflow.com/questions/7049494/how-to-get-icon-from-jtable[^]
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