private void process() {
int width = Integer.parseInt(xres.getText());
int height = Integer.parseInt(yres.getText());
boolean preserveAspect = aspect.isSelected();
Color bg = new Color(red.getValue(), green.getValue(), blue.getValue());
String outDir = output.getText();
String suffix = ((String) format.getSelectedItem()).toLowerCase();
String preText = prepend.getText();
String appText = append.getText();
int scaleType = -1;
String alg = (String) algorithm.getSelectedItem();
if (alg.equals("Smooth")) scaleType = Image.SCALE_SMOOTH;
else if (alg.equals("Standard")) scaleType = Image.SCALE_DEFAULT;
else if (alg.equals("Fast")) scaleType = Image.SCALE_FAST;
else if (alg.equals("Replicate")) scaleType = Image.SCALE_REPLICATE;
else if (alg.equals("Area averaging")) {
scaleType = Image.SCALE_AREA_AVERAGING;
}
DefaultListModel model = (DefaultListModel) list.getModel();
int size = model.size();
progress.setValue(0);
progress.setMaximum(4 * size);
for (int i = 0; i < size; i++) {
ThumbFile tf = (ThumbFile) model.elementAt(i);
list.setSelectedValue(tf, true);
String tail = " (" + (i + 1) + " of " + size + ")";
progress.setValue(4 * i);
progress.setString("Reading" + tail);
// construct input and output filenames
String inFile = tf.getPath();
String outFile = outDir + SLASH + tf.getName();
int ndx = outFile.lastIndexOf(SLASH);
String s1 = outFile.substring(0, ndx + SLASH.length());
String s2 = outFile.substring(ndx + SLASH.length());
int dot_ndx = s2.lastIndexOf(".");
if (dot_ndx >= 0) s2 = s2.substring(0, dot_ndx);
// make the thumbnail file name
outFile = s1 + preText + s2 + appText + "." + suffix;
// read in the file to an image
BufferedImage image = null;
try {
image = ImageIO.read(new File(inFile));
} catch (IOException exc) {
exc.printStackTrace();
}
progress.setValue(4 * i + 1);
progress.setString("Resizing" + tail);
// resize image
int w, h;
if (preserveAspect) {
int ow = image.getWidth();
int oh = image.getHeight();
double oasp = (double) ow / oh;
double tasp = (double) width / height;
if (oasp > tasp) {
w = width;
h = (int) (w / oasp);
} else {
h = height;
w = (int) (oasp * h);
}
} else {
w = width;
h = height;
}
Image resized = image.getScaledInstance(w, h, scaleType);
progress.setValue(4 * i + 2);
progress.setString("Painting" + tail);
// create thumbnail
BufferedImage thumb = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = thumb.createGraphics();
g2d.setColor(bg);
g2d.fillRect(0, 0, width, height);
g2d.drawImage(resized, (width - w) / 2, (height - h) / 2, this);
g2d.dispose();
progress.setValue(4 * i + 3);
progress.setString("Writing" + tail);
// save thumbnail to disk
File out = new File(outFile);
File parent = out.getParentFile();
if (parent != null && !parent.exists()) parent.mkdirs();
try {
ImageIO.write(thumb, suffix, out);
} catch (IOException exc) {
exc.printStackTrace();
}
}
list.setSelectedIndices(new int[0]);
progress.setValue(4 * size);
progress.setString("Complete");
}
public ThumbMaker() {
super("ThumbMaker");
// grab the preferences so that they can be used to fill out the layout
ThumbMakerPreferences myPrefs = ThumbMakerPreferences.getInstance();
// content pane
JPanel pane = new JPanel();
pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));
setContentPane(pane);
// top panel
JPanel top = new JPanel();
top.setLayout(new BoxLayout(top, BoxLayout.X_AXIS));
pane.add(top);
// left-hand panel
JPanel left = new JPanel();
left.setLayout(new BoxLayout(left, BoxLayout.Y_AXIS));
top.add(left);
// horizontal padding
top.add(Box.createHorizontalStrut(5));
// label for file list
JLabel listLabel = GUIUtil.makeLabel("Files to process:");
listLabel.setDisplayedMnemonic('f');
String listTip = "List of files from which to create thumbnails";
listLabel.setToolTipText(listTip);
left.add(GUIUtil.pad(listLabel));
// list of files to convert
list = new JList();
listLabel.setLabelFor(list);
list.setToolTipText(listTip);
list.setModel(new DefaultListModel());
list.setDragEnabled(true);
changeFilesInList = new ThumbTransferHandler();
list.setTransferHandler(changeFilesInList);
left.add(new JScrollPane(list));
// progress bar
progress = new JProgressBar(0, 1);
progress.setString("[Drag and drop files onto list to begin]");
progress.setStringPainted(true);
progress.setToolTipText("Status of thumbnail processing operation");
left.add(progress);
// panel for process and remove buttons
JPanel p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
// add files button
addFiles = new JButton("Add Files");
addFiles.setMnemonic('d');
addFiles.setToolTipText("Add files to be processed.");
addFiles.addActionListener(this);
p.add(addFiles);
p.add(Box.createHorizontalStrut(5));
// process button
process = new JButton("Process");
process.setMnemonic('p');
process.setToolTipText("Begin creating thumbnails");
process.addActionListener(this);
p.add(process);
p.add(Box.createHorizontalStrut(5));
// remove button
remove = new JButton("Remove");
remove.setMnemonic('v');
remove.setToolTipText("Remove selected files from the list");
remove.addActionListener(this);
p.add(remove);
left.add(GUIUtil.pad(p));
// right-hand panel
JPanel right = new JPanel();
right.setLayout(new BoxLayout(right, BoxLayout.Y_AXIS));
top.add(right);
// panel for resolution settings
p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
// resolution label
JLabel resLabel = GUIUtil.makeLabel("Resolution: ");
resLabel.setDisplayedMnemonic('s');
resLabel.setToolTipText("Resolution of the thumbnails");
p.add(resLabel);
// x resolution text box
xres =
GUIUtil.makeTextField(myPrefs.getStringPref(ThumbMakerPreferences.RES_WIDTH_PREF_NAME), 2);
resLabel.setLabelFor(xres);
xres.setToolTipText("Thumbnail width");
p.add(xres);
// "by" label
JLabel byLabel = GUIUtil.makeLabel(" by ");
byLabel.setDisplayedMnemonic('y');
p.add(byLabel);
// y resolution text box
yres =
GUIUtil.makeTextField(myPrefs.getStringPref(ThumbMakerPreferences.RES_HEIGHT_PREF_NAME), 2);
byLabel.setLabelFor(yres);
yres.setToolTipText("Thumbnail height");
p.add(yres);
right.add(GUIUtil.pad(p));
right.add(Box.createVerticalStrut(8));
// aspect ratio checkbox
aspect = new JCheckBox("Maintain aspect ratio", true);
aspect.setMnemonic('m');
aspect.setToolTipText(
"When checked, thumbnails are not stretched, "
+ "but rather padded with the background color.");
aspect.addActionListener(this);
right.add(GUIUtil.pad(aspect));
// make sure that the check box is initialized correctly
aspect.setSelected(
myPrefs
.getStringPref(ThumbMakerPreferences.DO_MAINTAIN_ASPECT_PREF_NAME)
.equalsIgnoreCase(ThumbMakerPreferences.BOOLEAN_TRUE_STRING));
// panel for background color
p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
// load the color values from the preferences
int redValueNumber = myPrefs.getIntegerPref(ThumbMakerPreferences.RED_VALUE_PREF_NAME);
int greenValueNumber = myPrefs.getIntegerPref(ThumbMakerPreferences.GREEN_VALUE_PREF_NAME);
int blueValueNumber = myPrefs.getIntegerPref(ThumbMakerPreferences.BLUE_VALUE_PREF_NAME);
// background color label
colorLabel = GUIUtil.makeLabel("Background color: ");
String colorTip = "Thumbnail background color";
colorLabel.setToolTipText(colorTip);
p.add(colorLabel);
// background color
colorBox = new JPanel();
colorBox.setToolTipText(colorTip);
colorBox.setBorder(new LineBorder(Color.black, 1));
Dimension colorBoxSize = new Dimension(45, 15);
colorBox.setMaximumSize(colorBoxSize);
colorBox.setMinimumSize(colorBoxSize);
colorBox.setPreferredSize(colorBoxSize);
colorBox.setBackground(new Color(redValueNumber, greenValueNumber, blueValueNumber));
p.add(colorBox);
right.add(GUIUtil.pad(p));
right.add(Box.createVerticalStrut(2));
// red slider
redLabel = GUIUtil.makeLabel("R");
red = new JSlider(0, 255, redValueNumber);
redValue = GUIUtil.makeLabel("" + redValueNumber);
redValue.setToolTipText("Red color component slider");
right.add(makeSlider(redLabel, red, redValue, "Red"));
// green slider
greenLabel = GUIUtil.makeLabel("G");
green = new JSlider(0, 255, greenValueNumber);
greenValue = GUIUtil.makeLabel("" + greenValueNumber);
greenValue.setToolTipText("Green color component slider");
right.add(makeSlider(greenLabel, green, greenValue, "Green"));
// blue slider
blueLabel = GUIUtil.makeLabel("B");
blue = new JSlider(0, 255, blueValueNumber);
blueValue = GUIUtil.makeLabel("" + blueValueNumber);
right.add(makeSlider(blueLabel, blue, blueValue, "Blue"));
right.add(Box.createVerticalStrut(8));
// panel for algorithm
p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
// algorithm label
JLabel algorithmLabel = GUIUtil.makeLabel("Algorithm: ");
algorithmLabel.setDisplayedMnemonic('l');
String algorithmTip = "Resizing algorithm to use";
algorithmLabel.setToolTipText(algorithmTip);
p.add(algorithmLabel);
// algorithm combo box
algorithm =
GUIUtil.makeComboBox(
new String[] {"Smooth", "Standard", "Fast", "Replicate", "Area averaging"});
algorithmLabel.setLabelFor(algorithm);
algorithm.setToolTipText(algorithmTip);
p.add(algorithm);
// set the algorithm value from the preferences
algorithm.setSelectedIndex(myPrefs.getIntegerPref(ThumbMakerPreferences.RESIZE_ALG_PREF_NAME));
right.add(GUIUtil.pad(p));
// panel for output format
p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
// format label
JLabel formatLabel = GUIUtil.makeLabel("Format: ");
formatLabel.setDisplayedMnemonic('f');
String formatTip = "Thumbnail output format";
formatLabel.setToolTipText(formatTip);
p.add(formatLabel);
// format combo box
format = GUIUtil.makeComboBox(new String[] {"PNG", "JPG"});
formatLabel.setLabelFor(format);
format.setToolTipText(formatTip);
p.add(format);
// set the format value from the preferences
format.setSelectedIndex(myPrefs.getIntegerPref(ThumbMakerPreferences.THUMB_FORMAT_PREF_NAME));
right.add(GUIUtil.pad(p));
right.add(Box.createVerticalStrut(5));
// panel for prepend string
p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
// prepend label
JLabel prependLabel = GUIUtil.makeLabel("Prepend: ");
prependLabel.setDisplayedMnemonic('e');
String prependTip = "Starting string for each thumbnail filename";
prependLabel.setToolTipText(prependTip);
p.add(prependLabel);
// prepend field
prepend =
GUIUtil.makeTextField(
myPrefs.getStringPref(ThumbMakerPreferences.STRING_TO_PREPEND_PREF_NAME), 4);
prependLabel.setLabelFor(prepend);
prepend.setToolTipText(prependTip);
p.add(prepend);
p.add(Box.createHorizontalStrut(5));
// append label
JLabel appendLabel = GUIUtil.makeLabel("Append: ");
appendLabel.setDisplayedMnemonic('a');
String appendTip = "Ending string for each thumbnail filename";
appendLabel.setToolTipText(appendTip);
p.add(appendLabel);
// append field
append =
GUIUtil.makeTextField(
myPrefs.getStringPref(ThumbMakerPreferences.STRING_TO_APPEND_PREF_NAME), 4);
appendLabel.setLabelFor(append);
append.setToolTipText(appendTip);
p.add(append);
right.add(GUIUtil.pad(p));
// vertical padding
right.add(Box.createVerticalGlue());
// bottom panel
JPanel bottom = new JPanel();
bottom.setLayout(new BoxLayout(bottom, BoxLayout.X_AXIS));
pane.add(bottom);
// output folder label
JLabel outputLabel = GUIUtil.makeLabel("Output folder: ");
outputLabel.setDisplayedMnemonic('o');
String outputTip = "Thumbnail output folder";
outputLabel.setToolTipText(outputTip);
bottom.add(outputLabel);
// output folder field
String filePath =
new File(myPrefs.getStringPref(ThumbMakerPreferences.FILE_PATH_STRING_PREF_NAME))
.getAbsolutePath();
output = GUIUtil.makeTextField(filePath, 8);
outputLabel.setLabelFor(output);
output.setToolTipText(outputTip);
// start this in default and then lock down so "..." is used
output.setEditable(false);
output.setBackground(Color.LIGHT_GRAY);
bottom.add(output);
// add a file chooser button "..."
dotDotDot = new JButton("...");
dotDotDot.setMnemonic('.');
dotDotDot.setToolTipText("Select destination directory.");
dotDotDot.addActionListener(this);
bottom.add(dotDotDot);
right.add(GUIUtil.pad(p));
setFromPreferences();
addWindowListener(this);
}
