Perf improvement: covers

[fanfix.git] / src / be / nikiroo / fanfix / reader / LocalReaderBook.java
diff --git a/src/be/nikiroo/fanfix/reader/LocalReaderBook.java b/src/be/nikiroo/fanfix/reader/LocalReaderBook.java

index 9991dfff902e463c6dbae46e56f4f46eca7631de..0145559cd04d15ed189548cb6ef909e712e25a81 100644 (file)
--- a/src/be/nikiroo/fanfix/reader/LocalReaderBook.java
+++ b/src/be/nikiroo/fanfix/reader/LocalReaderBook.java
@@ -9,17 +9,25 @@ import java.awt.Rectangle;
  import java.awt.event.MouseEvent;
  import java.awt.event.MouseListener;
  import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
  import java.util.ArrayList;
  import java.util.Date;
  import java.util.EventListener;
  import java.util.List;
  
+import javax.imageio.ImageIO;
  import javax.swing.ImageIcon;
  import javax.swing.JLabel;
  import javax.swing.JPanel;
  
+import be.nikiroo.fanfix.Instance;
  import be.nikiroo.fanfix.data.MetaData;
  import be.nikiroo.fanfix.data.Story;
+import be.nikiroo.utils.IOUtils;
  import be.nikiroo.utils.ui.UIUtils;
  
  /**
@@ -117,8 +125,7 @@ class LocalReaderBook extends JPanel {
                         optSecondary = "(" + optSecondary + ")";
                 }
  
-               icon = new JLabel(generateCoverIcon(meta.getCover()));
-
+               icon = new JLabel(generateCoverIcon(meta));
                 title = new JLabel(
                                 String.format(
                                                 "<html>"
@@ -339,29 +346,64 @@ class LocalReaderBook extends JPanel {
         }
  
         /**
-        * Generate a cover icon based upon the given cover image (which may be
-        * NULL).
+        * Generate a cover icon based upon the given {@link MetaData}.
          * 
-        * @param image
-        *            the cover image, or NULL for none
+        * @param meta
+        *            the {@link MetaData} about the target {@link Story}
          * 
          * @return the icon
          */
-       private ImageIcon generateCoverIcon(BufferedImage image) {
-               BufferedImage resizedImage = new BufferedImage(SPINE_WIDTH
-                               + COVER_WIDTH, SPINE_HEIGHT + COVER_HEIGHT + HOFFSET,
-                               BufferedImage.TYPE_4BYTE_ABGR);
-               Graphics2D g = resizedImage.createGraphics();
-               g.setColor(Color.white);
-               g.fillRect(0, HOFFSET, COVER_WIDTH, COVER_HEIGHT);
-               if (image != null) {
-                       g.drawImage(image, 0, HOFFSET, COVER_WIDTH, COVER_HEIGHT, null);
-               } else {
-                       g.setColor(Color.black);
-                       g.drawLine(0, HOFFSET, COVER_WIDTH, HOFFSET + COVER_HEIGHT);
-                       g.drawLine(COVER_WIDTH, HOFFSET, 0, HOFFSET + COVER_HEIGHT);
+       private ImageIcon generateCoverIcon(MetaData meta) {
+               String id = meta.getUuid() + ".thumb_" + SPINE_WIDTH + "x"
+                               + COVER_WIDTH + "+" + SPINE_HEIGHT + "+" + COVER_HEIGHT + "@"
+                               + HOFFSET;
+               BufferedImage resizedImage = null;
+
+               InputStream in = Instance.getCache().getFromCache(id);
+               if (in != null) {
+                       try {
+                               resizedImage = IOUtils.toImage(in);
+                               in.close();
+                               in = null;
+                       } catch (IOException e) {
+                               Instance.syserr(e);
+                       }
+               }
+
+               if (resizedImage == null) {
+                       try {
+                               BufferedImage cover = Instance.getLibrary().getCover(
+                                               meta.getLuid());
+
+                               resizedImage = new BufferedImage(SPINE_WIDTH + COVER_WIDTH,
+                                               SPINE_HEIGHT + COVER_HEIGHT + HOFFSET,
+                                               BufferedImage.TYPE_4BYTE_ABGR);
+                               Graphics2D g = resizedImage.createGraphics();
+                               g.setColor(Color.white);
+                               g.fillRect(0, HOFFSET, COVER_WIDTH, COVER_HEIGHT);
+                               if (cover != null) {
+                                       g.drawImage(cover, 0, HOFFSET, COVER_WIDTH, COVER_HEIGHT,
+                                                       null);
+                               } else {
+                                       g.setColor(Color.black);
+                                       g.drawLine(0, HOFFSET, COVER_WIDTH, HOFFSET + COVER_HEIGHT);
+                                       g.drawLine(COVER_WIDTH, HOFFSET, 0, HOFFSET + COVER_HEIGHT);
+                               }
+                               g.dispose();
+
+                               ByteArrayOutputStream out = new ByteArrayOutputStream();
+                               ImageIO.write(resizedImage, "png", out);
+                               byte[] imageBytes = out.toByteArray();
+                               in = new ByteArrayInputStream(imageBytes);
+                               Instance.getCache().addToCache(in, id);
+                               in.close();
+                               in = null;
+                       } catch (MalformedURLException e) {
+                               Instance.syserr(e);
+                       } catch (IOException e) {
+                               Instance.syserr(e);
+                       }
                 }
-               g.dispose();
  
                 return new ImageIcon(resizedImage);
         }