import java.awt.BorderLayout;
import java.awt.Color;
+import java.awt.Component;
+import java.awt.Graphics;
+import java.awt.Rectangle;
import java.awt.event.ActionListener;
-import java.awt.event.MouseEvent;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
+import java.awt.event.FocusAdapter;
+import java.awt.event.FocusEvent;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
import java.util.ArrayList;
import java.util.List;
private static final long serialVersionUID = 1L;
private BookActionListener action;
private Color backgroundColor;
+ private Color backgroundColorDef;
+ private Color backgroundColorDefPane;
private GuiReader reader;
private List<GuiReaderBookInfo> infos;
private List<GuiReaderBook> books;
private JPanel pane;
+ private JLabel titleLabel;
private boolean words; // words or authors (secondary info on books)
+ private int itemsPerLine;
/**
* Create a new {@link GuiReaderGroup}.
* the {@link GuiReaderBook} used to probe some information about
* the stories
* @param title
- * the title of this group
+ * the title of this group (can be NULL for "no title", an empty
+ * {@link String} will trigger a default title for empty groups)
* @param backgroundColor
* the background colour to use (or NULL for default)
*/
public GuiReaderGroup(GuiReader reader, String title, Color backgroundColor) {
this.reader = reader;
- this.backgroundColor = backgroundColor;
this.pane = new JPanel();
-
pane.setLayout(new WrapLayout(WrapLayout.LEADING, 5, 5));
- if (backgroundColor != null) {
- pane.setBackground(backgroundColor);
- setBackground(backgroundColor);
- }
+
+ this.backgroundColorDef = getBackground();
+ this.backgroundColorDefPane = pane.getBackground();
+ setBackground(backgroundColor);
setLayout(new BorderLayout(0, 10));
+
+ // Make it focusable:
+ setFocusable(true);
+ setEnabled(true);
+ setVisible(true);
+
add(pane, BorderLayout.CENTER);
+ titleLabel = new JLabel();
+ titleLabel.setHorizontalAlignment(JLabel.CENTER);
+ add(titleLabel, BorderLayout.NORTH);
+ setTitle(title);
+
+ // Compute the number of items per line at each resize
+ addComponentListener(new ComponentAdapter() {
+ @Override
+ public void componentResized(ComponentEvent e) {
+ super.componentResized(e);
+ computeItemsPerLine();
+ }
+ });
+ computeItemsPerLine();
+
+ addKeyListener(new KeyAdapter() {
+ @Override
+ public void keyPressed(KeyEvent e) {
+ onKeyPressed(e);
+ }
+
+ @Override
+ public void keyTyped(KeyEvent e) {
+ onKeyTyped(e);
+ }
+ });
+
+ addFocusListener(new FocusAdapter() {
+ @Override
+ public void focusGained(FocusEvent e) {
+ if (getSelectedBookIndex() < 0) {
+ setSelectedBook(0, true);
+ }
+ }
+
+ @Override
+ public void focusLost(FocusEvent e) {
+ setBackground(null);
+ setSelectedBook(-1, false);
+ }
+ });
+ }
+
+ /**
+ * Note: this class supports NULL as a background colour, which will revert
+ * it to its default state.
+ * <p>
+ * Note: this class' implementation will also set the main pane background
+ * colour at the same time.
+ * <p>
+ * Sets the background colour of this component. The background colour is
+ * used only if the component is opaque, and only by subclasses of
+ * <code>JComponent</code> or <code>ComponentUI</code> implementations.
+ * Direct subclasses of <code>JComponent</code> must override
+ * <code>paintComponent</code> to honour this property.
+ * <p>
+ * It is up to the look and feel to honour this property, some may choose to
+ * ignore it.
+ *
+ * @param backgroundColor
+ * the desired background <code>Colour</code>
+ * @see java.awt.Component#getBackground
+ * @see #setOpaque
+ *
+ * @beaninfo preferred: true bound: true attribute: visualUpdate true
+ * description: The background colour of the component.
+ */
+ @Override
+ public void setBackground(Color backgroundColor) {
+ this.backgroundColor = backgroundColor;
+
+ Color cme = backgroundColor == null ? backgroundColorDef
+ : backgroundColor;
+ Color cpane = backgroundColor == null ? backgroundColorDefPane
+ : backgroundColor;
+
+ if (pane != null) { // can happen at theme setup time
+ pane.setBackground(cpane);
+ }
+ super.setBackground(cme);
+ }
+
+ /**
+ * The title of this group (can be NULL for "no title", an empty
+ * {@link String} will trigger a default title for empty groups)
+ *
+ * @param title
+ * the title or NULL
+ */
+ public void setTitle(String title) {
if (title != null) {
if (title.isEmpty()) {
title = GuiReader.trans(StringIdGui.MENU_AUTHORS_UNKNOWN);
}
- JLabel label = new JLabel();
- label.setText(String.format("<html>"
+ titleLabel.setText(String.format("<html>"
+ "<body style='text-align: center; color: gray;'><br><b>"
+ "%s" + "</b></body>" + "</html>", title));
- label.setHorizontalAlignment(JLabel.CENTER);
- add(label, BorderLayout.NORTH);
+ titleLabel.setVisible(true);
+ } else {
+ titleLabel.setVisible(false);
+ }
+ }
+
+ /**
+ * Compute how many items can fit in a line so UP and DOWN can be used to go
+ * up/down one line at a time.
+ */
+ private void computeItemsPerLine() {
+ itemsPerLine = 1;
+
+ if (books != null && books.size() > 0) {
+ // this.pane holds all the books with a hgap of 5 px
+ int wbook = books.get(0).getWidth() + 5;
+ itemsPerLine = pane.getWidth() / wbook;
}
}
*/
public void setActionListener(BookActionListener action) {
this.action = action;
+ refreshBooks();
+ }
+
+ /**
+ * Clear all the books in this {@link GuiReaderGroup}.
+ */
+ public void clear() {
+ refreshBooks(new ArrayList<GuiReaderBookInfo>());
+ }
+
+ /**
+ * Refresh the list of {@link GuiReaderBook}s displayed in the control.
+ */
+ public void refreshBooks() {
+ refreshBooks(infos, words);
+ }
+
+ /**
+ * Refresh the list of {@link GuiReaderBook}s displayed in the control.
+ *
+ * @param infos
+ * the new list of infos
+ */
+ public void refreshBooks(List<GuiReaderBookInfo> infos) {
refreshBooks(infos, words);
}
if (infos != null) {
for (GuiReaderBookInfo info : infos) {
boolean isCached = false;
- if (info.getMeta() != null) {
+ if (info.getMeta() != null && info.getMeta().getLuid() != null) {
isCached = reader.isCached(info.getMeta().getLuid());
}
book.addActionListener(new BookActionListener() {
@Override
public void select(GuiReaderBook book) {
+ GuiReaderGroup.this.requestFocusInWindow();
for (GuiReaderBook abook : books) {
abook.setSelected(abook == book);
}
}
@Override
- public void popupRequested(GuiReaderBook book, MouseEvent e) {
+ public void popupRequested(GuiReaderBook book,
+ Component target, int x, int y) {
}
@Override
pane.repaint();
validate();
repaint();
+
+ computeItemsPerLine();
}
/**
super.setEnabled(b);
repaint();
}
+
+ /**
+ * The number of books in this group.
+ *
+ * @return the count
+ */
+ public int getBooksCount() {
+ return books.size();
+ }
+
+ /**
+ * Return the index of the currently selected book if any, -1 if none.
+ *
+ * @return the index or -1
+ */
+ public int getSelectedBookIndex() {
+ int index = -1;
+ for (int i = 0; i < books.size(); i++) {
+ if (books.get(i).isSelected()) {
+ index = i;
+ break;
+ }
+ }
+ return index;
+ }
+
+ /**
+ * Select the given book, or unselect all items.
+ *
+ * @param index
+ * the index of the book to select, can be outside the bounds
+ * (either all the items will be unselected or the first or last
+ * book will then be selected, see <tt>forceRange></tt>)
+ * @param forceRange
+ * TRUE to constraint the index to the first/last element, FALSE
+ * to unselect when outside the range
+ */
+ public void setSelectedBook(int index, boolean forceRange) {
+ int previousIndex = getSelectedBookIndex();
+
+ if (index >= books.size()) {
+ if (forceRange) {
+ index = books.size() - 1;
+ } else {
+ index = -1;
+ }
+ }
+
+ if (index < 0 && forceRange) {
+ index = 0;
+ }
+
+ if (previousIndex >= 0) {
+ books.get(previousIndex).setSelected(false);
+ }
+
+ if (index >= 0 && !books.isEmpty()) {
+ books.get(index).setSelected(true);
+ }
+ }
+
+ /**
+ * The action to execute when a key is typed.
+ *
+ * @param e
+ * the key event
+ */
+ private void onKeyTyped(KeyEvent e) {
+ boolean consumed = false;
+ boolean action = e.getKeyChar() == '\n';
+ boolean popup = e.getKeyChar() == ' ';
+ if (action || popup) {
+ consumed = true;
+
+ int index = getSelectedBookIndex();
+ if (index >= 0) {
+ GuiReaderBook book = books.get(index);
+ if (action) {
+ book.action();
+ } else if (popup) {
+ book.popup(book, book.getWidth() / 2, book.getHeight() / 2);
+ }
+ }
+ }
+
+ if (consumed) {
+ e.consume();
+ }
+ }
+
+ /**
+ * The action to execute when a key is pressed.
+ *
+ * @param e
+ * the key event
+ */
+ private void onKeyPressed(KeyEvent e) {
+ boolean consumed = false;
+ if (e.isActionKey()) {
+ int offset = 0;
+ switch (e.getKeyCode()) {
+ case KeyEvent.VK_LEFT:
+ offset = -1;
+ break;
+ case KeyEvent.VK_RIGHT:
+ offset = 1;
+ break;
+ case KeyEvent.VK_UP:
+ offset = -itemsPerLine;
+ break;
+ case KeyEvent.VK_DOWN:
+ offset = itemsPerLine;
+ break;
+ }
+
+ if (offset != 0) {
+ consumed = true;
+
+ int previousIndex = getSelectedBookIndex();
+ if (previousIndex >= 0) {
+ setSelectedBook(previousIndex + offset, true);
+ }
+ }
+ }
+
+ if (consumed) {
+ e.consume();
+ }
+ }
+
+ @Override
+ public void paint(Graphics g) {
+ super.paint(g);
+
+ Rectangle clip = g.getClipBounds();
+ if (clip.getWidth() <= 0 || clip.getHeight() <= 0) {
+ return;
+ }
+
+ if (!isEnabled()) {
+ g.setColor(new Color(128, 128, 128, 128));
+ g.fillRect(clip.x, clip.y, clip.width, clip.height);
+ }
+ }
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff