src/be/nikiroo/fanfix/reader/ui/GuiReaderCoverImager.java

   1 package be.nikiroo.fanfix.reader.ui;
   2
   3 import java.awt.Color;
   4 import java.awt.Graphics;
   5 import java.awt.Graphics2D;
   6 import java.awt.Polygon;
   7 import java.awt.Rectangle;
   8 import java.awt.image.BufferedImage;
   9 import java.io.ByteArrayInputStream;
  10 import java.io.ByteArrayOutputStream;
  11 import java.io.IOException;
  12 import java.io.InputStream;
  13 import java.net.MalformedURLException;
  14
  15 import javax.imageio.ImageIO;
  16 import javax.swing.ImageIcon;
  17
  18 import be.nikiroo.fanfix.Instance;
  19 import be.nikiroo.fanfix.data.MetaData;
  20 import be.nikiroo.fanfix.library.BasicLibrary;
  21 import be.nikiroo.utils.Image;
  22 import be.nikiroo.utils.ui.ImageUtilsAwt;
  23 import be.nikiroo.utils.ui.UIUtils;
  24
  25 /**
  26  * This class can create a cover icon ready to use for the graphical
  27  * application.
  28  *
  29  * @author niki
  30  */
  31 class GuiReaderCoverImager {
  32
  33         // TODO: export some of the configuration options?
  34         private static final int COVER_WIDTH = 100;
  35         private static final int COVER_HEIGHT = 150;
  36         private static final int SPINE_WIDTH = 5;
  37         private static final int SPINE_HEIGHT = 5;
  38         private static final int HOFFSET = 20;
  39         private static final Color SPINE_COLOR_BOTTOM = new Color(180, 180, 180);
  40         private static final Color SPINE_COLOR_RIGHT = new Color(100, 100, 100);
  41         private static final Color BORDER = Color.black;
  42
  43         public static final int TEXT_HEIGHT = 50;
  44         public static final int TEXT_WIDTH = COVER_WIDTH + 40;
  45
  46         //
  47
  48         /**
  49          * Draw a partially transparent overlay if needed depending upon the
  50          * selection and mouse-hover states on top of the normal component, as well
  51          * as a possible "cached" icon if the item is cached.
  52          *
  53          * @param g
  54          *            the {@link Graphics} to paint onto
  55          * @param enabled
  56          *            draw an enabled overlay
  57          * @param selected
  58          *            draw a selected overlay
  59          * @param hovered
  60          *            draw a hovered overlay
  61          * @param cached
  62          *            draw a cached overlay
  63          */
  64         static public void paintOverlay(Graphics g, boolean enabled,
  65                         boolean selected, boolean hovered, boolean cached) {
  66                 Rectangle clip = g.getClipBounds();
  67                 if (clip.getWidth() <= 0 || clip.getHeight() <= 0) {
  68                         return;
  69                 }
  70
  71                 int h = COVER_HEIGHT;
  72                 int w = COVER_WIDTH;
  73                 int xOffset = (TEXT_WIDTH - COVER_WIDTH) - 1;
  74                 int yOffset = HOFFSET;
  75
  76                 if (BORDER != null) {
  77                         if (BORDER != null) {
  78                                 g.setColor(BORDER);
  79                                 g.drawRect(xOffset, yOffset, COVER_WIDTH, COVER_HEIGHT);
  80                         }
  81
  82                         xOffset++;
  83                         yOffset++;
  84                 }
  85
  86                 int[] xs = new int[] { xOffset, xOffset + SPINE_WIDTH,
  87                                 xOffset + w + SPINE_WIDTH, xOffset + w };
  88                 int[] ys = new int[] { yOffset + h, yOffset + h + SPINE_HEIGHT,
  89                                 yOffset + h + SPINE_HEIGHT, yOffset + h };
  90                 g.setColor(SPINE_COLOR_BOTTOM);
  91                 g.fillPolygon(new Polygon(xs, ys, xs.length));
  92                 xs = new int[] { xOffset + w, xOffset + w + SPINE_WIDTH,
  93                                 xOffset + w + SPINE_WIDTH, xOffset + w };
  94                 ys = new int[] { yOffset, yOffset + SPINE_HEIGHT,
  95                                 yOffset + h + SPINE_HEIGHT, yOffset + h };
  96                 g.setColor(SPINE_COLOR_RIGHT);
  97                 g.fillPolygon(new Polygon(xs, ys, xs.length));
  98
  99                 Color color = new Color(255, 255, 255, 0);
 100                 if (!enabled) {
 101                 } else if (selected && !hovered) {
 102                         color = new Color(80, 80, 100, 40);
 103                 } else if (!selected && hovered) {
 104                         color = new Color(230, 230, 255, 100);
 105                 } else if (selected && hovered) {
 106                         color = new Color(200, 200, 255, 100);
 107                 }
 108
 109                 g.setColor(color);
 110                 g.fillRect(clip.x, clip.y, clip.width, clip.height);
 111
 112                 if (cached) {
 113                         UIUtils.drawEllipse3D(g, Color.green.darker(), COVER_WIDTH
 114                                         + HOFFSET + 30, 10, 20, 20);
 115                 }
 116         }
 117
 118         /**
 119          * Generate a cover icon based upon the given {@link MetaData}.
 120          *
 121          * @param lib
 122          *            the library the meta comes from
 123          * @param meta
 124          *            the {@link MetaData}
 125          *
 126          * @return the icon
 127          */
 128         static public ImageIcon generateCoverIcon(BasicLibrary lib, MetaData meta) {
 129                 return generateCoverIcon(lib, GuiReaderBookInfo.fromMeta(meta));
 130         }
 131
 132         /**
 133          * The width of a cover image.
 134          *
 135          * @return the width
 136          */
 137         static public int getCoverWidth() {
 138                 return SPINE_WIDTH + COVER_WIDTH;
 139         }
 140
 141         /**
 142          * The height of a cover image.
 143          *
 144          * @return the height
 145          */
 146         static public int getCoverHeight() {
 147                 return COVER_HEIGHT + HOFFSET;
 148         }
 149
 150         /**
 151          * Generate a cover icon based upon the given {@link GuiReaderBookInfo}.
 152          *
 153          * @param lib
 154          *            the library the meta comes from
 155          * @param info
 156          *            the {@link GuiReaderBookInfo}
 157          *
 158          * @return the icon
 159          */
 160         static public ImageIcon generateCoverIcon(BasicLibrary lib,
 161                         GuiReaderBookInfo info) {
 162                 BufferedImage resizedImage = null;
 163                 String id = getIconId(info);
 164
 165                 InputStream in = Instance.getCache().getFromCache(id);
 166                 if (in != null) {
 167                         try {
 168                                 resizedImage = ImageUtilsAwt.fromImage(new Image(in));
 169                                 in.close();
 170                                 in = null;
 171                         } catch (IOException e) {
 172                                 Instance.getTraceHandler().error(e);
 173                         }
 174                 }
 175
 176                 if (resizedImage == null) {
 177                         try {
 178                                 Image cover = info.getBaseImage(lib);
 179                                 resizedImage = new BufferedImage(getCoverWidth(),
 180                                                 getCoverHeight(), BufferedImage.TYPE_4BYTE_ABGR);
 181
 182                                 Graphics2D g = resizedImage.createGraphics();
 183                                 try {
 184                                         g.setColor(Color.white);
 185                                         g.fillRect(0, HOFFSET, COVER_WIDTH, COVER_HEIGHT);
 186
 187                                         if (cover != null) {
 188                                                 BufferedImage coverb = ImageUtilsAwt.fromImage(cover);
 189                                                 g.drawImage(coverb, 0, HOFFSET, COVER_WIDTH,
 190                                                                 COVER_HEIGHT, null);
 191                                         } else {
 192                                                 g.setColor(Color.black);
 193                                                 g.drawLine(0, HOFFSET, COVER_WIDTH, HOFFSET
 194                                                                 + COVER_HEIGHT);
 195                                                 g.drawLine(COVER_WIDTH, HOFFSET, 0, HOFFSET
 196                                                                 + COVER_HEIGHT);
 197                                         }
 198                                 } finally {
 199                                         g.dispose();
 200                                 }
 201
 202                                 if (id != null) {
 203                                         ByteArrayOutputStream out = new ByteArrayOutputStream();
 204                                         ImageIO.write(resizedImage, "png", out);
 205                                         byte[] imageBytes = out.toByteArray();
 206                                         in = new ByteArrayInputStream(imageBytes);
 207                                         Instance.getCache().addToCache(in, id);
 208                                         in.close();
 209                                         in = null;
 210                                 }
 211                         } catch (MalformedURLException e) {
 212                                 Instance.getTraceHandler().error(e);
 213                         } catch (IOException e) {
 214                                 Instance.getTraceHandler().error(e);
 215                         }
 216                 }
 217
 218                 return new ImageIcon(resizedImage);
 219         }
 220
 221         /**
 222          * Manually clear the icon set for this item.
 223          *
 224          * @param info
 225          *            the info about the story or source/type or author
 226          */
 227         static public void clearIcon(GuiReaderBookInfo info) {
 228                 String id = getIconId(info);
 229                 Instance.getCache().removeFromCache(id);
 230         }
 231
 232         /**
 233          * Get a unique ID from this {@link GuiReaderBookInfo} (note that it can be
 234          * a story, a fake item for a source/type or a fake item for an author).
 235          *
 236          * @param info
 237          *            the info
 238          * @return the unique ID
 239          */
 240         static private String getIconId(GuiReaderBookInfo info) {
 241                 return info.getId() + ".thumb_" + SPINE_WIDTH + "x" + COVER_WIDTH + "+"
 242                                 + SPINE_HEIGHT + "+" + COVER_HEIGHT + "@" + HOFFSET;
 243         }
 244 }