reader/GuiReaderBook.java

   1 package be.nikiroo.fanfix.reader;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Color;
   5 import java.awt.Graphics;
   6 import java.awt.Graphics2D;
   7 import java.awt.Polygon;
   8 import java.awt.Rectangle;
   9 import java.awt.event.MouseEvent;
  10 import java.awt.event.MouseListener;
  11 import java.awt.image.BufferedImage;
  12 import java.io.ByteArrayInputStream;
  13 import java.io.ByteArrayOutputStream;
  14 import java.io.IOException;
  15 import java.io.InputStream;
  16 import java.net.MalformedURLException;
  17 import java.util.ArrayList;
  18 import java.util.Date;
  19 import java.util.EventListener;
  20 import java.util.List;
  21
  22 import javax.imageio.ImageIO;
  23 import javax.swing.ImageIcon;
  24 import javax.swing.JLabel;
  25 import javax.swing.JPanel;
  26
  27 import be.nikiroo.fanfix.Instance;
  28 import be.nikiroo.fanfix.data.MetaData;
  29 import be.nikiroo.fanfix.data.Story;
  30 import be.nikiroo.utils.ImageUtils;
  31 import be.nikiroo.utils.ui.UIUtils;
  32
  33 /**
  34  * A book item presented in a {@link GuiReaderFrame}.
  35  *
  36  * @author niki
  37  */
  38 class GuiReaderBook extends JPanel {
  39         /**
  40          * Action on a book item.
  41          *
  42          * @author niki
  43          */
  44         interface BookActionListener extends EventListener {
  45                 /**
  46                  * The book was selected (single click).
  47                  *
  48                  * @param book
  49                  *            the {@link GuiReaderBook} itself
  50                  */
  51                 public void select(GuiReaderBook book);
  52
  53                 /**
  54                  * The book was double-clicked.
  55                  *
  56                  * @param book
  57                  *            the {@link GuiReaderBook} itself
  58                  */
  59                 public void action(GuiReaderBook book);
  60
  61                 /**
  62                  * A popup menu was requested for this {@link GuiReaderBook}.
  63                  *
  64                  * @param book
  65                  *            the {@link GuiReaderBook} itself
  66                  * @param e
  67                  *            the {@link MouseEvent} that generated this call
  68                  */
  69                 public void popupRequested(GuiReaderBook book, MouseEvent e);
  70         }
  71
  72         private static final long serialVersionUID = 1L;
  73
  74         // TODO: export some of the configuration options?
  75         private static final int COVER_WIDTH = 100;
  76         private static final int COVER_HEIGHT = 150;
  77         private static final int SPINE_WIDTH = 5;
  78         private static final int SPINE_HEIGHT = 5;
  79         private static final int HOFFSET = 20;
  80         private static final Color SPINE_COLOR_BOTTOM = new Color(180, 180, 180);
  81         private static final Color SPINE_COLOR_RIGHT = new Color(100, 100, 100);
  82         private static final int TEXT_WIDTH = COVER_WIDTH + 40;
  83         private static final int TEXT_HEIGHT = 50;
  84         private static final String AUTHOR_COLOR = "#888888";
  85         private static final Color BORDER = Color.black;
  86         private static final long doubleClickDelay = 200; // in ms
  87         //
  88
  89         private JLabel icon;
  90         private JLabel title;
  91         private boolean selected;
  92         private boolean hovered;
  93         private Date lastClick;
  94
  95         private List<BookActionListener> listeners;
  96         private Reader reader;
  97         private MetaData meta;
  98         private boolean cached;
  99
 100         /**
 101          * Create a new {@link GuiReaderBook} item for the given {@link Story}.
 102          *
 103          * @param reader
 104          *            the associated reader
 105          * @param meta
 106          *            the story {@link MetaData} or source (if no LUID)
 107          * @param cached
 108          *            TRUE if it is locally cached
 109          * @param seeWordCount
 110          *            TRUE to see word counts, FALSE to see authors
 111          */
 112         public GuiReaderBook(Reader reader, MetaData meta, boolean cached,
 113                         boolean seeWordCount) {
 114                 this.reader = reader;
 115                 this.cached = cached;
 116                 this.meta = meta;
 117
 118                 String optSecondary = meta.getAuthor();
 119                 if (seeWordCount) {
 120                         if (meta.getWords() >= 4000) {
 121                                 optSecondary = "" + (meta.getWords() / 1000) + "k";
 122                         } else if (meta.getWords() > 0) {
 123                                 optSecondary = "" + meta.getWords();
 124                         } else {
 125                                 optSecondary = "";
 126                         }
 127
 128                         if (!optSecondary.isEmpty()) {
 129                                 if (meta.isImageDocument()) {
 130                                         optSecondary += " images";
 131                                 } else {
 132                                         optSecondary += " words";
 133                                 }
 134                         }
 135                 }
 136
 137                 if (optSecondary != null && !optSecondary.isEmpty()) {
 138                         optSecondary = "(" + optSecondary + ")";
 139                 } else {
 140                         optSecondary = "";
 141                 }
 142
 143                 icon = new JLabel(generateCoverIcon());
 144                 title = new JLabel(
 145                                 String.format(
 146                                                 "<html>"
 147                                                                 + "<body style='width: %d px; height: %d px; text-align: center'>"
 148                                                                 + "%s" + "<br>" + "<span style='color: %s;'>"
 149                                                                 + "%s" + "</span>" + "</body>" + "</html>",
 150                                                 TEXT_WIDTH, TEXT_HEIGHT, meta.getTitle(), AUTHOR_COLOR,
 151                                                 optSecondary));
 152
 153                 setLayout(new BorderLayout(10, 10));
 154                 add(icon, BorderLayout.CENTER);
 155                 add(title, BorderLayout.SOUTH);
 156
 157                 setupListeners();
 158         }
 159
 160         /**
 161          * The book current selection state.
 162          *
 163          * @return the selection state
 164          */
 165         public boolean isSelected() {
 166                 return selected;
 167         }
 168
 169         /**
 170          * The book current selection state.
 171          *
 172          * @param selected
 173          *            TRUE if it is selected
 174          */
 175         public void setSelected(boolean selected) {
 176                 if (this.selected != selected) {
 177                         this.selected = selected;
 178                         repaint();
 179                 }
 180         }
 181
 182         /**
 183          * The item mouse-hover state.
 184          *
 185          * @param hovered
 186          *            TRUE if it is mouse-hovered
 187          */
 188         private void setHovered(boolean hovered) {
 189                 if (this.hovered != hovered) {
 190                         this.hovered = hovered;
 191                         repaint();
 192                 }
 193         }
 194
 195         /**
 196          * Setup the mouse listener that will activate {@link BookActionListener}
 197          * events.
 198          */
 199         private void setupListeners() {
 200                 listeners = new ArrayList<GuiReaderBook.BookActionListener>();
 201                 addMouseListener(new MouseListener() {
 202                         @Override
 203                         public void mouseReleased(MouseEvent e) {
 204                                 if (e.isPopupTrigger()) {
 205                                         popup(e);
 206                                 }
 207                         }
 208
 209                         @Override
 210                         public void mousePressed(MouseEvent e) {
 211                                 if (e.isPopupTrigger()) {
 212                                         popup(e);
 213                                 }
 214                         }
 215
 216                         @Override
 217                         public void mouseExited(MouseEvent e) {
 218                                 setHovered(false);
 219                         }
 220
 221                         @Override
 222                         public void mouseEntered(MouseEvent e) {
 223                                 setHovered(true);
 224                         }
 225
 226                         @Override
 227                         public void mouseClicked(MouseEvent e) {
 228                                 if (isEnabled()) {
 229                                         Date now = new Date();
 230                                         if (lastClick != null
 231                                                         && now.getTime() - lastClick.getTime() < doubleClickDelay) {
 232                                                 click(true);
 233                                         } else {
 234                                                 click(false);
 235                                         }
 236
 237                                         lastClick = now;
 238                                 }
 239                         }
 240
 241                         private void click(boolean doubleClick) {
 242                                 for (BookActionListener listener : listeners) {
 243                                         if (doubleClick) {
 244                                                 listener.action(GuiReaderBook.this);
 245                                         } else {
 246                                                 listener.select(GuiReaderBook.this);
 247                                         }
 248                                 }
 249                         }
 250
 251                         private void popup(MouseEvent e) {
 252                                 for (BookActionListener listener : listeners) {
 253                                         listener.select((GuiReaderBook.this));
 254                                         listener.popupRequested(GuiReaderBook.this, e);
 255                                 }
 256                         }
 257                 });
 258         }
 259
 260         /**
 261          * Add a new {@link BookActionListener} on this item.
 262          *
 263          * @param listener
 264          *            the listener
 265          */
 266         public void addActionListener(BookActionListener listener) {
 267                 listeners.add(listener);
 268         }
 269
 270         /**
 271          * The Library {@link MetaData} of the book represented by this item.
 272          *
 273          * @return the meta
 274          */
 275         public MetaData getMeta() {
 276                 return meta;
 277         }
 278
 279         /**
 280          * This item {@link GuiReader} library cache state.
 281          *
 282          * @return TRUE if it is present in the {@link GuiReader} cache
 283          */
 284         public boolean isCached() {
 285                 return cached;
 286         }
 287
 288         /**
 289          * This item {@link GuiReader} library cache state.
 290          *
 291          * @param cached
 292          *            TRUE if it is present in the {@link GuiReader} cache
 293          */
 294         public void setCached(boolean cached) {
 295                 if (this.cached != cached) {
 296                         this.cached = cached;
 297                         repaint();
 298                 }
 299         }
 300
 301         /**
 302          * Paint the item, then call {@link GuiReaderBook#paintOverlay(Graphics)}.
 303          */
 304         @Override
 305         public void paint(Graphics g) {
 306                 super.paint(g);
 307                 paintOverlay(g);
 308         }
 309
 310         /**
 311          * Draw a partially transparent overlay if needed depending upon the
 312          * selection and mouse-hover states on top of the normal component, as well
 313          * as a possible "cached" icon if the item is cached.
 314          *
 315          * @param g
 316          *            the {@link Graphics} to paint onto
 317          */
 318         public void paintOverlay(Graphics g) {
 319                 Rectangle clip = g.getClipBounds();
 320                 if (clip.getWidth() <= 0 || clip.getHeight() <= 0) {
 321                         return;
 322                 }
 323
 324                 int h = COVER_HEIGHT;
 325                 int w = COVER_WIDTH;
 326                 int xOffset = (TEXT_WIDTH - COVER_WIDTH) - 1;
 327                 int yOffset = HOFFSET;
 328
 329                 if (BORDER != null) {
 330                         if (BORDER != null) {
 331                                 g.setColor(BORDER);
 332                                 g.drawRect(xOffset, yOffset, COVER_WIDTH, COVER_HEIGHT);
 333                         }
 334
 335                         xOffset++;
 336                         yOffset++;
 337                 }
 338
 339                 int[] xs = new int[] { xOffset, xOffset + SPINE_WIDTH,
 340                                 xOffset + w + SPINE_WIDTH, xOffset + w };
 341                 int[] ys = new int[] { yOffset + h, yOffset + h + SPINE_HEIGHT,
 342                                 yOffset + h + SPINE_HEIGHT, yOffset + h };
 343                 g.setColor(SPINE_COLOR_BOTTOM);
 344                 g.fillPolygon(new Polygon(xs, ys, xs.length));
 345                 xs = new int[] { xOffset + w, xOffset + w + SPINE_WIDTH,
 346                                 xOffset + w + SPINE_WIDTH, xOffset + w };
 347                 ys = new int[] { yOffset, yOffset + SPINE_HEIGHT,
 348                                 yOffset + h + SPINE_HEIGHT, yOffset + h };
 349                 g.setColor(SPINE_COLOR_RIGHT);
 350                 g.fillPolygon(new Polygon(xs, ys, xs.length));
 351
 352                 Color color = new Color(255, 255, 255, 0);
 353                 if (!isEnabled()) {
 354                 } else if (selected && !hovered) {
 355                         color = new Color(80, 80, 100, 40);
 356                 } else if (!selected && hovered) {
 357                         color = new Color(230, 230, 255, 100);
 358                 } else if (selected && hovered) {
 359                         color = new Color(200, 200, 255, 100);
 360                 }
 361
 362                 g.setColor(color);
 363                 g.fillRect(clip.x, clip.y, clip.width, clip.height);
 364
 365                 if (cached) {
 366                         UIUtils.drawEllipse3D(g, Color.green.darker(), COVER_WIDTH
 367                                         + HOFFSET + 30, 10, 20, 20);
 368                 }
 369         }
 370
 371         /**
 372          * Generate a cover icon based upon the given {@link MetaData}.
 373          *
 374          * @return the icon
 375          */
 376         private ImageIcon generateCoverIcon() {
 377                 BufferedImage resizedImage = null;
 378                 String id = getIconId(meta);
 379
 380                 InputStream in = Instance.getCache().getFromCache(id);
 381                 if (in != null) {
 382                         try {
 383                                 resizedImage = ImageUtils.fromStream(in);
 384                                 in.close();
 385                                 in = null;
 386                         } catch (IOException e) {
 387                                 Instance.syserr(e);
 388                         }
 389                 }
 390
 391                 if (resizedImage == null) {
 392                         try {
 393                                 BufferedImage cover = null;
 394                                 if (meta.getLuid() == null) {
 395                                         cover = reader.getLibrary()
 396                                                         .getSourceCover(meta.getSource());
 397                                 } else {
 398                                         cover = reader.getLibrary().getCover(meta.getLuid());
 399                                 }
 400
 401                                 resizedImage = new BufferedImage(SPINE_WIDTH + COVER_WIDTH,
 402                                                 SPINE_HEIGHT + COVER_HEIGHT + HOFFSET,
 403                                                 BufferedImage.TYPE_4BYTE_ABGR);
 404                                 Graphics2D g = resizedImage.createGraphics();
 405                                 g.setColor(Color.white);
 406                                 g.fillRect(0, HOFFSET, COVER_WIDTH, COVER_HEIGHT);
 407                                 if (cover != null) {
 408                                         g.drawImage(cover, 0, HOFFSET, COVER_WIDTH, COVER_HEIGHT,
 409                                                         null);
 410                                 } else {
 411                                         g.setColor(Color.black);
 412                                         g.drawLine(0, HOFFSET, COVER_WIDTH, HOFFSET + COVER_HEIGHT);
 413                                         g.drawLine(COVER_WIDTH, HOFFSET, 0, HOFFSET + COVER_HEIGHT);
 414                                 }
 415                                 g.dispose();
 416
 417                                 if (id != null) {
 418                                         ByteArrayOutputStream out = new ByteArrayOutputStream();
 419                                         ImageIO.write(resizedImage, "png", out);
 420                                         byte[] imageBytes = out.toByteArray();
 421                                         in = new ByteArrayInputStream(imageBytes);
 422                                         Instance.getCache().addToCache(in, id);
 423                                         in.close();
 424                                         in = null;
 425                                 }
 426                         } catch (MalformedURLException e) {
 427                                 Instance.syserr(e);
 428                         } catch (IOException e) {
 429                                 Instance.syserr(e);
 430                         }
 431                 }
 432
 433                 return new ImageIcon(resizedImage);
 434         }
 435
 436         /**
 437          * Manually clear the icon set for this item.
 438          *
 439          * @param meta
 440          *            the meta of the story or source (if luid is null)
 441          */
 442         public static void clearIcon(MetaData meta) {
 443                 String id = getIconId(meta);
 444                 Instance.getCache().removeFromCache(id);
 445         }
 446
 447         /**
 448          * Get a unique ID from this meta (note that if the luid is null, it is
 449          * considered a source and not a {@link Story}).
 450          *
 451          * @param meta
 452          *            the meta
 453          * @return the unique ID
 454          */
 455         private static String getIconId(MetaData meta) {
 456                 String id = null;
 457
 458                 String key = meta.getUuid();
 459                 if (meta.getLuid() == null) {
 460                         // a fake meta (== a source)
 461                         key = "source_" + meta.getSource();
 462                 }
 463
 464                 id = key + ".thumb_" + SPINE_WIDTH + "x" + COVER_WIDTH + "+"
 465                                 + SPINE_HEIGHT + "+" + COVER_HEIGHT + "@" + HOFFSET;
 466
 467                 return id;
 468         }
 469 }