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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.dialog.welcome;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagLayout;
import java.awt.Paint;
import java.awt.event.ActionEvent;
import java.io.File;
import java.util.List;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ModelerPreferences;
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.BackgroundPanel;
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 JScrollPane implements RecentFileListListener, RecentFileListRenderer.OnFileClickListener {
/**
* 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<String> recentProjectsList;
private JPanel buttonsPanel;
private JPanel mainPanel;
public WelcomeScreen() {
initView();
}
/**
* Creates all necessary components
*/
protected void initView() {
mainPanel = new JPanel(new GridBagLayout()) {
@Override
public void paintComponent(Graphics g) {
// paint gradient background
Graphics2D g2 = (Graphics2D) g.create();
Paint paint = new GradientPaint(0, 0, TOP_GRADIENT, 0, getHeight(), BOTTOM_GRADIENT);
g2.setPaint(paint);
g2.fillRect(0, 0, getWidth(), getHeight());
g2.dispose();
}
};
setBorder(BorderFactory.createEmptyBorder());
initButtonsPane();
initFileListPane();
setViewportView(mainPanel);
}
private void initFileListPane() {
JPanel fileListPanel = new BackgroundPanel("welcome/welcome-screen-right-bg.jpg");
final int padding = 20;
recentProjectsList = new JList<>();
recentProjectsList.setOpaque(false);
recentProjectsList.setLocation(padding, padding);
recentProjectsList.setSize(
fileListPanel.getWidth() - 2 * padding,
fileListPanel.getHeight() - 2 * padding
);
recentProjectsList.setCellRenderer(new RecentFileListRenderer(recentProjectsList, this));
fileListPanel.add(recentProjectsList);
mainPanel.add(fileListPanel);
}
private void initButtonsPane() {
final int padding = 24; // bottom padding for buttons
final int buttonHeight = 36;
buttonsPanel = new BackgroundPanel("welcome/welcome-screen-left-bg.jpg");
int openButtonY = buttonsPanel.getHeight() - padding - buttonHeight; // buttons layout from bottom
int newButtonY = openButtonY - 10 - buttonHeight; // 10px - space between buttons
initButton("open", openButtonY, OpenProjectAction.class);
initButton("new", newButtonY, NewProjectAction.class);
mainPanel.add(buttonsPanel);
}
private void initButton(String name, int y, Class<? extends Action> actionClass) {
ImageIcon icon = ModelerUtil.buildIcon("welcome/welcome-screen-"+name+"-btn.png");
ImageIcon hoverIcon = ModelerUtil.buildIcon("welcome/welcome-screen-"+name+"-btn-hover.png");
JButton button = createButton(icon, hoverIcon);
button.setLocation(24, y); // 24px - button left & right padding
button.addActionListener(Application
.getInstance()
.getActionManager()
.getAction(actionClass));
buttonsPanel.add(button);
}
@Override
public void onFileSelect(File file) {
ActionEvent event = new ActionEvent(file, 0, null);
// Fire an action with the file as source
Application.getInstance()
.getActionManager()
.getAction(OpenProjectAction.class)
.performAction(event);
}
/**
* 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;
}
@Override
public void recentFileListChanged() {
List<File> arr = ModelerPreferences.getLastProjFiles();
recentProjectsList.setModel(new RecentFileListModel(arr));
}
}