package gui.model;

import java.util.ArrayList;
import java.util.List;

import javax.swing.ComboBoxModel;
import javax.swing.event.ListDataListener;

public class CategoryComboBoxModel implements ComboBoxModel<String>{
	public List<String> cs = new ArrayList<>();
	
	String c;
	public CategoryComboBoxModel(){
		cs.add("餐饮");
		cs.add("交通");
		cs.add("住宿");
		cs.add("话费");
		c = cs.get(0);
	}
	
	@Override
	public int getSize() {
		return cs.size();
	}

	@Override
	public String getElementAt(int index) {
		return cs.get(index);
	}

	@Override
	public void addListDataListener(ListDataListener l) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void removeListDataListener(ListDataListener l) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void setSelectedItem(Object anItem) {
		c = (String) anItem;
		
	}

	@Override
	public Object getSelectedItem() {
		// TODO Auto-generated method stub
		return c;
	}

}

package gui.panel;

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.util.Date;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.jdesktop.swingx.JXDatePicker;

import gui.model.CategoryComboBoxModel;
import util.ColorUtil;
import util.GUIUtil;

public class RecordPanel extends JPanel{
	static{
		GUIUtil.useLNF();
	}
	public static RecordPanel instance = new RecordPanel();

	JLabel lSpend = new JLabel("花费(￥)");
	JLabel lCategory = new JLabel("分类");
	JLabel lComment = new JLabel("备注");
	JLabel lDate = new JLabel("日期");

	public JTextField tfSpend = new JTextField("0");

	public CategoryComboBoxModel cbModel = new CategoryComboBoxModel();
	public JComboBox<String> cbCategory = new JComboBox<>(cbModel);
	public JTextField tfComment = new JTextField();
	public JXDatePicker datepick = new JXDatePicker(new Date());
	
	JButton bSubmit = new JButton("记一笔");

	public RecordPanel() {
		GUIUtil.setColor(ColorUtil.grayColor, lSpend,lCategory,lComment,lDate);
		GUIUtil.setColor(ColorUtil.blueColor, bSubmit);
		JPanel pInput =new JPanel();
		JPanel pSubmit = new JPanel();
		int gap = 40;
		pInput.setLayout(new GridLayout(4,2,gap,gap));
		
		pInput.add(lSpend);
		pInput.add(tfSpend);
		pInput.add(lCategory);
		pInput.add(cbCategory);
		pInput.add(lComment);
		pInput.add(tfComment);
		pInput.add(lDate);
		pInput.add(datepick);
		
		pSubmit.add(bSubmit);
		
		this.setLayout(new BorderLayout());
		this.add(pInput,BorderLayout.NORTH);
		this.add(pSubmit,BorderLayout.CENTER);
	}

	public static void main(String[] args) {
		GUIUtil.showPanel(RecordPanel.instance);
	}
	
}