+++ /dev/null
-package be.nikiroo.fanfix.reader.ui;
-
-import java.awt.Color;
-import java.awt.LayoutManager;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.swing.BoxLayout;
-import javax.swing.JButton;
-import javax.swing.JLabel;
-import javax.swing.JPanel;
-
-import be.nikiroo.fanfix.Instance;
-
-/**
- * A Swing-based navigation bar, that displays first/previous/next/last page
- * buttons.
- *
- * @author niki
- */
-public class GuiReaderNavBar extends JPanel {
- private static final long serialVersionUID = 1L;
-
- private JLabel label;
- private int index = 0;
- private int min = 0;
- private int max = 0;
- private JButton[] navButtons;
- String extraLabel = null;
-
- private List<ActionListener> listeners = new ArrayList<ActionListener>();
-
- /**
- * Create a new navigation bar.
- * <p>
- * The minimum must be lower or equal to the maximum.
- * <p>
- * Note than a max of "-1" means "infinite".
- *
- * @param min
- * the minimum page number (cannot be negative)
- * @param max
- * the maximum page number (cannot be lower than min, except if
- * -1 (infinite))
- *
- * @throws IndexOutOfBoundsException
- * if min > max and max is not "-1"
- */
- public GuiReaderNavBar(int min, int max) {
- if (min > max && max != -1) {
- throw new IndexOutOfBoundsException(String.format(
- "min (%d) > max (%d)", min, max));
- }
-
- LayoutManager layout = new BoxLayout(this, BoxLayout.X_AXIS);
- setLayout(layout);
-
- // TODO:
- // JButton up = new BasicArrowButton(BasicArrowButton.NORTH);
- // JButton down = new BasicArrowButton(BasicArrowButton.SOUTH);
-
- navButtons = new JButton[4];
-
- navButtons[0] = createNavButton("<<", new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- setIndex(GuiReaderNavBar.this.min);
- fireEvent();
- }
- });
- navButtons[1] = createNavButton(" < ", new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- setIndex(index - 1);
- fireEvent();
- }
- });
- navButtons[2] = createNavButton(" > ", new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- setIndex(index + 1);
- fireEvent();
- }
- });
- navButtons[3] = createNavButton(">>", new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- setIndex(GuiReaderNavBar.this.max);
- fireEvent();
- }
- });
-
- for (JButton navButton : navButtons) {
- add(navButton);
- }
-
- label = new JLabel("");
- add(label);
-
- this.min = min;
- this.max = max;
- this.index = min;
-
- updateEnabled();
- updateLabel();
- fireEvent();
- }
-
- /**
- * The current index, must be between {@link GuiReaderNavBar#min} and
- * {@link GuiReaderNavBar#max}, both inclusive.
- *
- * @return the index
- */
- public int getIndex() {
- return index;
- }
-
- /**
- * The current index, must be between {@link GuiReaderNavBar#min} and
- * {@link GuiReaderNavBar#max}, both inclusive.
- *
- * @param index
- * the new index
- */
- public void setIndex(int index) {
- if (index != this.index) {
- if (index < min || (index > max && max != -1)) {
- throw new IndexOutOfBoundsException(String.format(
- "Index %d but min/max is [%d/%d]", index, min, max));
- }
-
- this.index = index;
- updateLabel();
- }
-
- updateEnabled();
- }
-
- /**
- * The minimun page number. Cannot be negative.
- *
- * @return the min
- */
- public int getMin() {
- return min;
- }
-
- /**
- * The minimum page number. Cannot be negative.
- * <p>
- * May update the index if needed (if the index is < the new min).
- * <p>
- * Will also (always) update the label and enable/disable the required
- * buttons.
- *
- * @param min
- * the new min
- */
- public void setMin(int min) {
- this.min = min;
- if (index < min) {
- index = min;
- }
- updateEnabled();
- updateLabel();
-
- }
-
- /**
- * The maximum page number. Cannot be lower than min, except if -1
- * (infinite).
- *
- * @return the max
- */
- public int getMax() {
- return max;
- }
-
- /**
- * The maximum page number. Cannot be lower than min, except if -1
- * (infinite).
- * <p>
- * May update the index if needed (if the index is > the new max).
- * <p>
- * Will also (always) update the label and enable/disable the required
- * buttons.
- *
- * @param max
- * the new max
- */
- public void setMax(int max) {
- this.max = max;
- if (index > max && max != -1) {
- index = max;
- }
- updateEnabled();
- updateLabel();
- }
-
- /**
- * The current extra label to display with the default
- * {@link GuiReaderNavBar#computeLabel(int, int, int)} implementation.
- *
- * @return the current label
- */
- public String getExtraLabel() {
- return extraLabel;
- }
-
- /**
- * The current extra label to display with the default
- * {@link GuiReaderNavBar#computeLabel(int, int, int)} implementation.
- *
- * @param currentLabel
- * the new current label
- */
- public void setExtraLabel(String currentLabel) {
- this.extraLabel = currentLabel;
- updateLabel();
- }
-
- /**
- * Add a listener that will be called on each page change.
- *
- * @param listener
- * the new listener
- */
- public void addActionListener(ActionListener listener) {
- listeners.add(listener);
- }
-
- /**
- * Remove the given listener if possible.
- *
- * @param listener
- * the listener to remove
- * @return TRUE if it was removed, FALSE if it was not found
- */
- public boolean removeActionListener(ActionListener listener) {
- return listeners.remove(listener);
- }
-
- /**
- * Remove all the listeners.
- */
- public void clearActionsListeners() {
- listeners.clear();
- }
-
- /**
- * Notify a change of page.
- */
- public void fireEvent() {
- for (ActionListener listener : listeners) {
- try {
- listener.actionPerformed(new ActionEvent(this,
- ActionEvent.ACTION_FIRST, "page changed"));
- } catch (Exception e) {
- Instance.getInstance().getTraceHandler().error(e);
- }
- }
- }
-
- /**
- * Create a single navigation button.
- *
- * @param text
- * the text to display
- * @param action
- * the action to take on click
- * @return the button
- */
- private JButton createNavButton(String text, ActionListener action) {
- JButton navButton = new JButton(text);
- navButton.addActionListener(action);
- navButton.setForeground(Color.BLUE);
- return navButton;
- }
-
- /**
- * Update the label displayed in the UI.
- */
- private void updateLabel() {
- label.setText(computeLabel(index, min, max));
- }
-
- /**
- * Update the navigation buttons "enabled" state according to the current
- * index value.
- */
- private void updateEnabled() {
- navButtons[0].setEnabled(index > min);
- navButtons[1].setEnabled(index > min);
- navButtons[2].setEnabled(index < max || max == -1);
- navButtons[3].setEnabled(index < max || max == -1);
- }
-
- /**
- * Return the label to display for the given index.
- * <p>
- * Swing HTML (HTML3) is supported if surrounded by <HTML> and
- * </HTML>.
- * <p>
- * By default, return "Page 1/5: current_label" (with the current index and
- * {@link GuiReaderNavBar#getCurrentLabel()}).
- *
- * @param index
- * the new index number
- * @param mix
- * the minimum index (inclusive)
- * @param max
- * the maximum index (inclusive)
- * @return the label
- */
- protected String computeLabel(int index,
- @SuppressWarnings("unused") int min, int max) {
-
- String base = " <B>Page <SPAN COLOR='#444466'>%d</SPAN> ";
- if (max >= 0) {
- base += "/ %d";
- }
- base += "</B>";
-
- String ifLabel = ": %s";
-
- String display = base;
- String label = getExtraLabel();
- if (label != null && !label.trim().isEmpty()) {
- display += ifLabel;
- }
-
- display = "<HTML>" + display + "</HTML>";
-
- if (max >= 0) {
- return String.format(display, index, max, label);
- }
-
- return String.format(display, index, label);
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff