Birkaç Swing ve SWT GUI'sı oluşturdum. Bulduğum şey, bir GUI'nin kendi model görünümü (MV) yapısını gerektirmesidir. Uygulama denetleyicisi, GUI bileşenlerinden ziyade GUI modeli ile etkileşime girer.
Temel olarak, GUI'deki her Swing JPanel için bir Java fasulyesi yapıyorum. GUI bileşenleri Java çekirdeği ile etkileşime girer ve uygulama denetleyicisi Java çekirdeği (leri) ile etkileşime girer.
Oluşturduğum bir Spirograph GUI.
İşte Spirograph parametrelerini yönetir Java fasulye var. Denetim Masası sınıfı eklemek için düzenlenmiştir.
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JToggleButton;
import javax.swing.SwingConstants;
import com.ggl.spirograph.model.ControlModel;
public class ControlPanel {
protected static final Insets entryInsets = new Insets(0, 10, 4, 10);
protected static final Insets titleInsets = new Insets(0, 10, 20, 10);
protected ControlModel model;
protected DrawingPanel drawingPanel;
protected JButton drawButton;
protected JButton stopButton;
protected JButton resetButton;
protected JButton foregroundColorButton;
protected JButton backgroundColorButton;
protected JLabel message;
protected JPanel panel;
protected JTextField outerCircleField;
protected JTextField innerCircleField;
protected JTextField penLocationField;
protected JTextField penSizeField;
protected JTextField penFadeField;
protected JToggleButton animationToggleButton;
protected JToggleButton fastToggleButton;
protected static final int messageLength = 100;
protected String blankMessage;
public ControlPanel(ControlModel model) {
this.model = model;
this.blankMessage = createBlankMessage();
createPartControl();
setFieldValues();
setColorValues();
}
public void setDrawingPanel(DrawingPanel drawingPanel) {
this.drawingPanel = drawingPanel;
}
protected String createBlankMessage() {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < messageLength/4; i++) {
sb.append(" ");
}
return sb.toString();
}
protected void createPartControl() {
panel = new JPanel();
panel.setLayout(new GridBagLayout());
int gridy = 0;
JLabel title = new JLabel("Spirograph Parameters");
title.setHorizontalAlignment(SwingConstants.CENTER);
addComponent(panel, title, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
resetButton = new JButton("Reset Default Parameters");
resetButton.setHorizontalAlignment(SwingConstants.CENTER);
resetButton.addActionListener(new ResetButtonListener());
addComponent(panel, resetButton, 0, gridy++, 4, 1, entryInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
JLabel outerCircleLabel = new JLabel("Outer circle radius:");
outerCircleLabel.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, outerCircleLabel, 0, gridy, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
outerCircleField = new JTextField(5);
outerCircleField.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, outerCircleField, 2, gridy++, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
JLabel innerCircleLabel = new JLabel("Inner circle radius:");
innerCircleLabel.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, innerCircleLabel, 0, gridy, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
innerCircleField = new JTextField(5);
innerCircleField.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, innerCircleField, 2, gridy++, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
JLabel penLocationLabel = new JLabel("Pen location radius:");
penLocationLabel.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, penLocationLabel, 0, gridy, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
penLocationField = new JTextField(5);
penLocationField.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, penLocationField, 2, gridy++, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
JLabel penSizeLabel = new JLabel("Pen size:");
penSizeLabel.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, penSizeLabel, 0, gridy, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
penSizeField = new JTextField(5);
penSizeField.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, penSizeField, 2, gridy++, 2, 1, entryInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
message = new JLabel(blankMessage);
message.setForeground(Color.RED);
message.setHorizontalAlignment(SwingConstants.LEFT);
addComponent(panel, message, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);
title = new JLabel("Drawing Speed");
title.setHorizontalAlignment(SwingConstants.CENTER);
addComponent(panel, title, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
JPanel buttonPanel = new JPanel(new GridLayout(1, 2, 4, 0));
animationToggleButton = new JToggleButton("Animated");
animationToggleButton.setSelected(model.isAnimated());
animationToggleButton.setHorizontalAlignment(SwingConstants.CENTER);
animationToggleButton.addActionListener(new DrawingSpeedListener(
animationToggleButton));
buttonPanel.add(animationToggleButton);
fastToggleButton = new JToggleButton("Fast");
fastToggleButton.setSelected(!model.isAnimated());
fastToggleButton.setHorizontalAlignment(SwingConstants.CENTER);
fastToggleButton.addActionListener(new DrawingSpeedListener(
fastToggleButton));
buttonPanel.add(fastToggleButton);
addComponent(panel, buttonPanel, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
title = new JLabel("Drawing Colors");
title.setHorizontalAlignment(SwingConstants.CENTER);
addComponent(panel, title, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
buttonPanel = new JPanel(new GridLayout(1, 2, 4, 0));
foregroundColorButton = new JButton("Pen");
foregroundColorButton.setHorizontalAlignment(SwingConstants.CENTER);
foregroundColorButton.addActionListener(new ColorSelectListener(
foregroundColorButton));
buttonPanel.add(foregroundColorButton);
backgroundColorButton = new JButton("Paper");
backgroundColorButton.setHorizontalAlignment(SwingConstants.CENTER);
backgroundColorButton.addActionListener(new ColorSelectListener(
backgroundColorButton));
buttonPanel.add(backgroundColorButton);
addComponent(panel, buttonPanel, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
title = new JLabel("Drawing Controls");
title.setHorizontalAlignment(SwingConstants.CENTER);
addComponent(panel, title, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
buttonPanel = new JPanel(new GridLayout(1, 2, 4, 0));
drawButton = new JButton("Draw");
drawButton.setHorizontalAlignment(SwingConstants.CENTER);
drawButton.addActionListener(new DrawButtonListener());
buttonPanel.add(drawButton);
stopButton = new JButton("Stop");
stopButton.setHorizontalAlignment(SwingConstants.CENTER);
stopButton.addActionListener(new StopButtonListener());
buttonPanel.add(stopButton);
addComponent(panel, buttonPanel, 0, gridy++, 4, 1, titleInsets,
GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL);
}
protected void addComponent(Container container, Component component,
int gridx, int gridy, int gridwidth, int gridheight,
Insets insets, int anchor, int fill) {
GridBagConstraints gbc = new GridBagConstraints(gridx, gridy,
gridwidth, gridheight, 1.0, 1.0, anchor, fill, insets, 0, 0);
container.add(component, gbc);
}
protected void setFieldValues() {
outerCircleField.setText(Integer.toString(model.getOuterCircle()));
innerCircleField.setText(Integer.toString(model.getInnerCircle()));
penLocationField.setText(Integer.toString(model.getPenLocation()));
penSizeField.setText(Integer.toString(model.getPenSize()));
}
protected void setColorValues() {
foregroundColorButton.setForeground(model.getBackgroundColor());
foregroundColorButton.setBackground(model.getPenColor());
backgroundColorButton.setForeground(model.getPenColor());
backgroundColorButton.setBackground(model.getBackgroundColor());
}
public JPanel getPanel() {
return panel;
}
public class ResetButtonListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
model.init();
setFieldValues();
}
}
public class StopButtonListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent arg0) {
drawingPanel.stop();
}
}
public class DrawButtonListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent event) {
message.setText(blankMessage);
int ocTest = isNumeric(outerCircleField.getText());
int icTest = isNumeric(innerCircleField.getText());
int plTest = isNumeric(penLocationField.getText());
int psTest = isNumeric(penSizeField.getText());
boolean isInvalid = false;
if (psTest < 0) {
message.setText("Pen size is not a valid integer");
isInvalid = true;
}
if (plTest < 0) {
message.setText("Pen location radius is not a valid integer");
isInvalid = true;
}
if (icTest < 0) {
message.setText("Inner circle radius is not a valid integer");
isInvalid = true;
}
if (ocTest < 0) {
message.setText("Outer circle radius is not a valid integer");
isInvalid = true;
}
if (isInvalid) {
return;
}
if (ocTest > 1000) {
message.setText("The outer circle cannot be larger than 1000");
isInvalid = true;
}
if (ocTest <= icTest) {
message.setText("The inner circle must be smaller than the outer circle");
isInvalid = true;
}
if (icTest <= plTest) {
message.setText("The pen location must be smaller than the inner circle");
isInvalid = true;
}
if (isInvalid) {
return;
}
model.setOuterCircle(ocTest);
model.setInnerCircle(icTest);
model.setPenLocation(plTest);
model.setPenSize(psTest);
drawingPanel.draw(model.isAnimated());
}
protected int isNumeric(String field) {
try {
return Integer.parseInt(field);
} catch (NumberFormatException e) {
return Integer.MIN_VALUE;
}
}
}
public class DrawingSpeedListener implements ActionListener {
JToggleButton selectedButton;
public DrawingSpeedListener(JToggleButton selectedButton) {
this.selectedButton = selectedButton;
}
@Override
public void actionPerformed(ActionEvent arg0) {
if (selectedButton.equals(animationToggleButton)) {
model.setAnimated(true);
} else {
model.setAnimated(false);
}
animationToggleButton.setSelected(model.isAnimated());
fastToggleButton.setSelected(!model.isAnimated());
}
}
public class ColorSelectListener implements ActionListener {
JButton selectedButton;
public ColorSelectListener(JButton selectedButton) {
this.selectedButton = selectedButton;
}
@Override
public void actionPerformed(ActionEvent arg0) {
if (selectedButton.equals(foregroundColorButton)) {
Color initialColor = model.getPenColor();
Color selectedColor = JColorChooser.showDialog(drawingPanel,
"Select pen color", initialColor);
if (selectedColor != null) {
model.setPenColor(selectedColor);
}
} else if (selectedButton.equals(backgroundColorButton)) {
Color initialColor = model.getBackgroundColor();
Color selectedColor = JColorChooser.showDialog(drawingPanel,
"Select paper color", initialColor);
if (selectedColor != null) {
model.setBackgroundColor(selectedColor);
}
}
setColorValues();
}
}
}
bakınız bu [Örnek] (http://stackoverflow.com/a/3072979/230513) ya da bu [Örnek] (http://stackoverflow.com/a/8534162/230513), ya hangi senin [sscce] bildirebilir (http://sscce.org/). – trashgod
MVP'yi (Model-View-Presenter), örn. Bu sunumda (http://www.jgoodies.com/download/presentations/patterns-and-binding.pdf) – Robin