Java tutorial
/* * PS3 Media Server, for streaming any medias to your PS3. * Copyright (C) 2008 A.Brochard * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; version 2 * of the License only. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ package net.pms.newgui; import com.jgoodies.forms.builder.PanelBuilder; import com.jgoodies.forms.factories.Borders; import com.jgoodies.forms.layout.*; import java.awt.Color; import java.awt.Component; import java.awt.ComponentOrientation; import java.awt.Container; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.image.BufferedImage; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.text.DecimalFormat; import java.util.List; import javax.imageio.ImageIO; import javax.swing.*; import net.pms.Messages; import net.pms.PMS; import net.pms.configuration.PmsConfiguration; import net.pms.configuration.RendererConfiguration; import net.pms.util.BasicPlayer; import net.pms.util.FormLayoutUtil; import net.pms.util.StringUtil; import net.pms.util.UMSUtils; import org.apache.commons.lang3.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class StatusTab { private static final Logger LOGGER = LoggerFactory.getLogger(StatusTab.class); private static final Color memColor = new Color(119, 119, 119, 128); private static final Color bufColor = new Color(75, 140, 181, 128); public static class RendererItem implements ActionListener { public ImagePanel icon; public JLabel label; public GuiUtil.MarqueeLabel playingLabel; // public GuiUtil.ScrollLabel playingLabel; public GuiUtil.FixedPanel playing; public JLabel time; public JFrame frame; public GuiUtil.SmoothProgressBar rendererProgressBar; public RendererPanel panel; public String name = " "; private JPanel _panel = null; public RendererItem(RendererConfiguration r) { icon = addRendererIcon(r.getRendererIcon()); icon.enableRollover(); label = new JLabel(r.getRendererName()); playingLabel = new GuiUtil.MarqueeLabel(" "); // playingLabel = new GuiUtil.ScrollLabel(" "); playingLabel.setForeground(Color.gray); int h = (int) playingLabel.getSize().getHeight(); playing = new GuiUtil.FixedPanel(0, h); playing.add(playingLabel); time = new JLabel(" "); time.setForeground(Color.gray); rendererProgressBar = new GuiUtil.SmoothProgressBar(0, 100, new GuiUtil.SimpleProgressUI(Color.gray, Color.gray)); rendererProgressBar.setStringPainted(true); rendererProgressBar.setBorderPainted(false); rendererProgressBar.setString(r.getAddress().getHostAddress()); rendererProgressBar.setForeground(bufColor); } @Override public void actionPerformed(final ActionEvent e) { BasicPlayer.State state = ((BasicPlayer) e.getSource()).getState(); time.setText((state.playback == BasicPlayer.STOPPED || StringUtil.isZeroTime(state.position)) ? " " : UMSUtils.playedDurationStr(state.position, state.duration)); rendererProgressBar.setValue((int) (100 * state.buffer / bufferSize)); String n = (state.playback == BasicPlayer.STOPPED || StringUtils.isBlank(state.name)) ? " " : state.name; if (!name.equals(n)) { name = n; playingLabel.setText(name); } } public void addTo(Container parent) { parent.add(getPanel()); parent.validate(); // Maximize the playing label width int w = _panel.getWidth() - _panel.getInsets().left - _panel.getInsets().right; playing.setSize(w, (int) playingLabel.getSize().getHeight()); playingLabel.setMaxWidth(w); } public void delete() { try { // Delete the popup if open if (frame != null) { frame.dispose(); frame = null; } Container parent = _panel.getParent(); parent.remove(_panel); parent.revalidate(); parent.repaint(); } catch (Exception e) { } } public JPanel getPanel() { if (_panel == null) { PanelBuilder b = new PanelBuilder(new FormLayout("center:pref", "max(140px;pref), 3dlu, pref, 2dlu, pref, 2dlu, pref, 2dlu, pref")); b.opaque(true); CellConstraints cc = new CellConstraints(); b.add(icon, cc.xy(1, 1)); b.add(label, cc.xy(1, 3, CellConstraints.CENTER, CellConstraints.DEFAULT)); b.add(rendererProgressBar, cc.xy(1, 5)); b.add(playing, cc.xy(1, 7, CellConstraints.CENTER, CellConstraints.DEFAULT)); b.add(time, cc.xy(1, 9)); _panel = b.getPanel(); } return _panel; } } private ImagePanel imagePanel; private JPanel renderers; private JLabel jl; private JProgressBar memoryProgressBar; private GuiUtil.SegmentedProgressBarUI memBarUI; private JLabel bitrateLabel; private JLabel currentBitrate; private JLabel currentBitrateLabel; private JLabel peakBitrate; private JLabel peakBitrateLabel; private long rc = 0; private long peak; private static DecimalFormat formatter = new DecimalFormat("#,###"); private static int bufferSize; StatusTab(PmsConfiguration configuration) { bufferSize = configuration.getMaxMemoryBufferSize(); } public void updateCurrentBitrate() { long total = 0; List<RendererConfiguration> foundRenderers = PMS.get().getFoundRenderers(); synchronized (foundRenderers) { for (RendererConfiguration r : foundRenderers) { total += r.getBuffer(); } } if (total == 0) { currentBitrate.setText("0"); } } public JLabel getJl() { return jl; } public ImagePanel getImagePanel() { return imagePanel; } public JComponent build() { // Apply the orientation for the locale ComponentOrientation orientation = ComponentOrientation.getOrientation(PMS.getLocale()); String colSpec = FormLayoutUtil.getColSpec("pref, 30dlu, fill:pref:grow, 30dlu, pref", orientation); // 1 2 3 4 5 FormLayout layout = new FormLayout(colSpec, // 1 2 3 4 5 // ////////////////////////////////////////////////// "p," // Detected Media Renderers --------------------// 1 + "9dlu," // // + "fill:p:grow," // <renderers> // 3 + "3dlu," // // + "p," // ---------------------------------------------// 5 + "3dlu," // | | // + "p," // Connected | Memory Usage |<bitrate> // 7 + "3dlu," // | | // + "p," // <icon> | <statusbar> | // 9 ////////////////////////////////////////////////// ); PanelBuilder builder = new PanelBuilder(layout); builder.border(Borders.DIALOG); builder.opaque(true); CellConstraints cc = new CellConstraints(); // Renderers JComponent cmp = builder.addSeparator(Messages.getString("StatusTab.9"), FormLayoutUtil.flip(cc.xyw(1, 1, 5), colSpec, orientation)); cmp = (JComponent) cmp.getComponent(0); Font bold = cmp.getFont().deriveFont(Font.BOLD); Color fgColor = new Color(68, 68, 68); cmp.setFont(bold); renderers = new JPanel(new GuiUtil.WrapLayout(FlowLayout.CENTER, 20, 10)); JScrollPane rsp = new JScrollPane(renderers, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); rsp.setBorder(BorderFactory.createEmptyBorder()); rsp.setPreferredSize(new Dimension(0, 260)); rsp.getHorizontalScrollBar().setLocation(0, 250); builder.add(rsp, cc.xyw(1, 3, 5)); cmp = builder.addSeparator(null, FormLayoutUtil.flip(cc.xyw(1, 5, 5), colSpec, orientation)); // Connected jl = new JLabel(Messages.getString("StatusTab.3")); builder.add(jl, FormLayoutUtil.flip(cc.xy(1, 7, "center, top"), colSpec, orientation)); jl.setFont(bold); jl.setForeground(fgColor); imagePanel = buildImagePanel("/resources/images/icon-status-connecting.png"); builder.add(imagePanel, FormLayoutUtil.flip(cc.xy(1, 9), colSpec, orientation)); // Memory memBarUI = new GuiUtil.SegmentedProgressBarUI(Color.white, Color.gray); memBarUI.setActiveLabel("{}", Color.white, 0); memBarUI.setActiveLabel("{}", Color.red, 90); memBarUI.addSegment("", memColor); memBarUI.addSegment("", bufColor); memBarUI.setTickMarks(getTickMarks(), "{}"); memoryProgressBar = new GuiUtil.CustomUIProgressBar(0, 100, memBarUI); memoryProgressBar.setStringPainted(true); memoryProgressBar.setForeground(new Color(75, 140, 181)); memoryProgressBar.setString(Messages.getString("StatusTab.5")); JLabel mem = builder .addLabel( "<html><b>" + Messages.getString("StatusTab.6") + "</b> (" + Messages.getString("StatusTab.12") + ")</html>", FormLayoutUtil.flip(cc.xy(3, 7), colSpec, orientation)); mem.setForeground(fgColor); builder.add(memoryProgressBar, FormLayoutUtil.flip(cc.xyw(3, 9, 1), colSpec, orientation)); // Bitrate String bitColSpec = "left:pref, 3dlu, right:pref:grow"; PanelBuilder bitrateBuilder = new PanelBuilder(new FormLayout(bitColSpec, "p, 1dlu, p, 1dlu, p")); bitrateLabel = new JLabel("<html><b>" + Messages.getString("StatusTab.13") + "</b> (" + Messages.getString("StatusTab.11") + ")</html>"); bitrateLabel.setForeground(fgColor); bitrateBuilder.add(bitrateLabel, FormLayoutUtil.flip(cc.xy(1, 1), bitColSpec, orientation)); currentBitrateLabel = new JLabel(Messages.getString("StatusTab.14")); currentBitrateLabel.setForeground(fgColor); bitrateBuilder.add(currentBitrateLabel, FormLayoutUtil.flip(cc.xy(1, 3), bitColSpec, orientation)); currentBitrate = new JLabel("0"); currentBitrate.setForeground(fgColor); bitrateBuilder.add(currentBitrate, FormLayoutUtil.flip(cc.xy(3, 3), bitColSpec, orientation)); peakBitrateLabel = new JLabel(Messages.getString("StatusTab.15")); peakBitrateLabel.setForeground(fgColor); bitrateBuilder.add(peakBitrateLabel, FormLayoutUtil.flip(cc.xy(1, 5), bitColSpec, orientation)); peakBitrate = new JLabel("0"); peakBitrate.setForeground(fgColor); bitrateBuilder.add(peakBitrate, FormLayoutUtil.flip(cc.xy(3, 5), bitColSpec, orientation)); builder.add(bitrateBuilder.getPanel(), FormLayoutUtil.flip(cc.xywh(5, 7, 1, 3, "left, top"), colSpec, orientation)); JPanel panel = builder.getPanel(); // Apply the orientation to the panel and all components in it panel.applyComponentOrientation(orientation); JScrollPane scrollPane = new JScrollPane(panel, JScrollPane.VERTICAL_SCROLLBAR_NEVER, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); scrollPane.setBorder(BorderFactory.createEmptyBorder()); startMemoryUpdater(); return scrollPane; } public void setReadValue(long v, String msg) { if (v < rc) { rc = v; } else { int sizeinMb = (int) ((v - rc) / 125) / 1024; if (sizeinMb > peak) { peak = sizeinMb; } currentBitrate.setText(formatter.format(sizeinMb)); peakBitrate.setText(formatter.format(peak)); rc = v; } } public ImagePanel buildImagePanel(String url) { BufferedImage bi = null; if (url != null) { try { bi = ImageIO.read(LooksFrame.class.getResourceAsStream(url)); } catch (IOException e) { LOGGER.debug("Caught exception", e); } } return new ImagePanel(bi); } public void addRenderer(final RendererConfiguration renderer) { final RendererItem r = new RendererItem(renderer); r.addTo(renderers); renderer.setGuiComponents(r); r.icon.setAction(new AbstractAction() { private static final long serialVersionUID = -6316055325551243347L; @Override public void actionPerformed(ActionEvent e) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { if (r.frame == null) { JFrame top = (JFrame) SwingUtilities .getWindowAncestor((Component) PMS.get().getFrame()); // We're using JFrame instead of JDialog here so as to have a minimize button. Since the player panel // is intrinsically a freestanding module this approach seems valid to me but some frown on it: see // http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice r.frame = new JFrame(); r.panel = new RendererPanel(renderer); r.frame.add(r.panel); r.panel.update(); r.frame.setResizable(false); r.frame.setIconImage(((JFrame) PMS.get().getFrame()).getIconImage()); r.frame.setLocationRelativeTo(top); r.frame.setVisible(true); } else { r.frame.setVisible(true); r.frame.toFront(); } } }); } }); } public static void updateRenderer(final RendererConfiguration renderer) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { if (renderer.gui != null) { renderer.gui.icon.set(getRendererIcon(renderer.getRendererIcon())); renderer.gui.label.setText(renderer.getRendererName()); // Update the popup panel if it's been opened if (renderer.gui.panel != null) { renderer.gui.panel.update(); } } } }); } public static ImagePanel addRendererIcon(String icon) { BufferedImage bi = getRendererIcon(icon); return bi != null ? new ImagePanel(bi) : null; } public static BufferedImage getRendererIcon(String icon) { BufferedImage bi = null; if (icon != null) { if (icon.matches(".*\\S+://.*")) { try { bi = ImageIO.read(new URL(icon)); } catch (Exception e) { LOGGER.debug("Error reading icon url: " + e); } if (bi != null) { return bi; } else { LOGGER.debug("Unable to read icon url \"{}\", using '{}' instead.", RendererConfiguration.UNKNOWN_ICON); icon = RendererConfiguration.UNKNOWN_ICON; } } try { InputStream is = null; /** * Check for a custom icon file first * * The file can be a) the name of a file in the renderers directory b) a path relative * to the PMS working directory or c) an absolute path. If no file is found, * the built-in resource (if any) is used instead. * * The File constructor does the right thing for the relative and absolute path cases, * so we only need to detect the bare filename case. * * RendererIcon = foo.png // e.g. $PMS/renderers/foo.png * RendererIcon = images/foo.png // e.g. $PMS/images/foo.png * RendererIcon = /path/to/foo.png */ File f = new File(icon); if (!f.isAbsolute() && f.getParent() == null) { // filename f = new File("renderers", icon); } if (f.isFile()) { is = new FileInputStream(f); } if (is == null) { is = LooksFrame.class.getResourceAsStream("/resources/images/clients/" + icon); } if (is == null) { is = LooksFrame.class.getResourceAsStream("/renderers/" + icon); } if (is != null) { bi = ImageIO.read(is); } } catch (IOException e) { LOGGER.debug("Caught exception", e); } } if (bi == null) { LOGGER.debug("Failed to load icon: " + icon); } return bi; } private int getTickMarks() { int mb = (int) (Runtime.getRuntime().maxMemory() / 1048576); return mb < 1000 ? 100 : mb < 2500 ? 250 : mb < 5000 ? 500 : 1000; } public void updateMemoryUsage() { final long max = Runtime.getRuntime().maxMemory() / 1048576; final long used = (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / 1048576; long buf = 0; List<RendererConfiguration> foundRenderers = PMS.get().getFoundRenderers(); synchronized (foundRenderers) { for (RendererConfiguration r : PMS.get().getFoundRenderers()) { buf += (r.getBuffer()); } } final long buffer = buf; SwingUtilities.invokeLater(new Runnable() { @Override public void run() { memBarUI.setValues(0, (int) max, (int) (used - buffer), (int) buffer); } }); } private void startMemoryUpdater() { Runnable r = new Runnable() { @Override public void run() { for (;;) { updateMemoryUsage(); try { Thread.sleep(2000); } catch (Exception e) { return; } } } }; new Thread(r).start(); } }