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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.modeler;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.MouseEvent;
import java.io.File;
import java.util.Vector;
import javax.swing.AbstractListModel;
import javax.swing.DefaultListCellRenderer;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.event.MouseInputListener;
import org.apache.cayenne.modeler.action.NewProjectAction;
import org.apache.cayenne.modeler.action.OpenProjectAction;
import org.apache.cayenne.modeler.event.RecentFileListListener;
import org.apache.cayenne.modeler.util.ModelerUtil;
/**
* Welcome screen (CAY-894) is a panel shown when no project is open.
* User can quickly create new project or open an existing one.
*/
public class WelcomeScreen extends JPanel implements RecentFileListListener {
/**
* Top color of gradient background
*/
private static final Color TOP_GRADIENT = new Color(153, 153, 153);
/**
* Bottom color of gradient background
*/
private static final Color BOTTOM_GRADIENT = new Color(230, 230, 230);
/**
* List of recent projects
*/
private JList recentsList;
public WelcomeScreen() {
initView();
}
/**
* Creates all neccesary components
*/
protected void initView() {
setLayout(new GridBagLayout());
ImageIcon welcome = ModelerUtil.buildIcon("welcome.jpg");
JLabel imageLabel = new JLabel(welcome);
ImageIcon newOutIcon = ModelerUtil.buildIcon("icon-welcome-new.png");
ImageIcon newOverIcon = ModelerUtil.buildIcon("icon-welcome-new-over.png");
ImageIcon openOutIcon = ModelerUtil.buildIcon("icon-welcome-open.png");
ImageIcon openOverIcon = ModelerUtil.buildIcon("icon-welcome-open-over.png");
JPanel buttonsPane = new JPanel(null);
buttonsPane.setPreferredSize(new Dimension(300, 30));
buttonsPane.setOpaque(false);
JButton newButton = createButton(newOutIcon, newOverIcon);
newButton.addActionListener(Application.getInstance().getAction(NewProjectAction.getActionName()));
JLabel newLabel = new JLabel(NewProjectAction.getActionName(), SwingConstants.CENTER);
JButton openButton = createButton(openOutIcon, openOverIcon);
openButton.addActionListener(Application.getInstance().getAction(OpenProjectAction.getActionName()));
JLabel openLabel = new JLabel(OpenProjectAction.getActionName(), SwingConstants.CENTER);
imageLabel.setLayout(new BorderLayout());
newButton.setLocation(10, 130);
buttonsPane.add(newButton);
newLabel.setLocation(newButton.getX()
+ newButton.getWidth() / 2 - newLabel.getPreferredSize().width / 2,
newButton.getY() + newButton.getHeight());
newLabel.setSize(newLabel.getPreferredSize());
buttonsPane.add(newLabel);
openButton.setLocation(120, newButton.getY());
buttonsPane.add(openButton);
openLabel.setLocation(openButton.getX()
+ openButton.getWidth() / 2 - openLabel.getPreferredSize().width / 2,
openButton.getY() + openButton.getHeight());
openLabel.setSize(openLabel.getPreferredSize());
buttonsPane.add(openLabel);
JLabel recents = new JLabel("Recent Projects:");
recents.setLocation(207, newButton.getY());
recents.setSize(recents.getPreferredSize());
recents.setHorizontalTextPosition(10);
buttonsPane.add(recents);
recentsList = new JList();
recentsList.setOpaque(false);
recentsList.setLocation(recents.getX(), recents.getY() + 2 * recents.getHeight());
recentsList.setSize(welcome.getIconWidth() - recentsList.getX() - 1,
welcome.getIconHeight() - recentsList.getY());
recentsList.setCellRenderer(new RecentFileListRenderer(recentsList));
buttonsPane.add(recentsList);
imageLabel.add(buttonsPane);
add(imageLabel);
}
/**
* Creates welcome screen-specific button
*/
private JButton createButton(Icon outIcon, Icon overIcon) {
JButton button = new JButton();
button.setFocusPainted(false);
button.setFocusable(false);
button.setBorderPainted(false);
button.setOpaque(false);
button.setContentAreaFilled(false);
button.setPressedIcon(overIcon);
button.setRolloverIcon(overIcon);
button.setIcon(outIcon);
button.setSize(outIcon.getIconWidth(), outIcon.getIconHeight());
return button;
}
/**
* Paints gradient background
*/
@Override
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g.create();
g2.setPaint(new GradientPaint(
0,
0,
TOP_GRADIENT,
0,
getHeight(),
BOTTOM_GRADIENT));
g2.fillRect(0, 0, getWidth(), getHeight());
g2.dispose();
}
public void recentFileListChanged() {
ModelerPreferences pref = ModelerPreferences.getPreferences();
final Vector<?> arr = (Vector<?>) pref.getVector(ModelerPreferences.LAST_PROJ_FILES).clone();
recentsList.setModel(
new AbstractListModel() {
public int getSize() { return arr.size(); }
public Object getElementAt(int i) { return arr.elementAt(i); }
});
}
/**
* Renderer for the list of last files. Ignores the selection, instead paints
* with ROLLOVER_BACKGROUND (currently red) the row mouse is hovering over
*/
class RecentFileListRenderer extends DefaultListCellRenderer implements MouseInputListener {
/**
* Color for background of row mouse is over
*/
final Color ROLLOVER_BACKGROUND = Color.RED;
/**
* Color for foreground of row mouse is over
*/
final Color ROLLOVER_FOREGROUND = Color.WHITE;
/**
* List which is rendered
*/
private JList list;
/**
* Row mouse is over
*/
private int rolloverRow;
public RecentFileListRenderer(JList list) {
list.addMouseListener(this);
list.addMouseMotionListener(this);
this.list = list;
rolloverRow = -1;
setHorizontalTextPosition(10);
}
@Override
public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus) {
//selection is ignored
super.getListCellRendererComponent(list, value, index, false, false);
if (rolloverRow == index) {
setOpaque(true);
setForeground(ROLLOVER_FOREGROUND);
setBackground(ROLLOVER_BACKGROUND);
}
else {
setOpaque(false);
}
return this;
}
public void mouseClicked(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
rolloverRow = -1;
list.repaint();
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
if (SwingUtilities.isLeftMouseButton(e) && rolloverRow != -1) {
File file = new File((String) list.getModel().getElementAt(rolloverRow));
/**
* Fire an action with the file as source
*/
Application.getInstance().getAction(OpenProjectAction.getActionName()).performAction(
new ActionEvent(file, 0, null));
rolloverRow = -1; //clear selection
}
}
public void mouseDragged(MouseEvent e) {
}
public void mouseMoved(MouseEvent e) {
int newRow;
/**
* Check that a row boundary contains the mouse point, so that rolloverRow would
* be -1 if we are below last row
*/
if (list.getModel().getSize() > 0 &&
!list.getCellBounds(0, list.getModel().getSize() - 1).contains(e.getPoint())) {
newRow = -1;
}
else {
newRow = list.locationToIndex(e.getPoint());
}
if (rolloverRow != newRow) {
rolloverRow = newRow;
list.repaint();
}
}
}
}