+++ /dev/null
-package be.nikiroo.utils.ui;
-
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-
-import javax.swing.BoxLayout;
-import javax.swing.DefaultComboBoxModel;
-import javax.swing.Icon;
-import javax.swing.JButton;
-import javax.swing.JComboBox;
-import javax.swing.JLabel;
-
-/**
- * A small panel that let you choose a zoom level or an actual zoom value (when
- * there is enough space to allow that).
- *
- * @author niki
- */
-public class ZoomBox extends ListenerPanel {
- private static final long serialVersionUID = 1L;
-
- /** The event that is fired on zoom change. */
- public static final String ZOOM_CHANGED = "zoom_changed";
-
- private enum ZoomLevel {
- FIT_TO_WIDTH(0, true), //
- FIT_TO_HEIGHT(0, false), //
- ACTUAL_SIZE(1, null), //
- HALF_SIZE(0.5, null), //
- DOUBLE_SIZE(2, null),//
- ;
-
- private final double zoom;
- private final Boolean snapMode;
-
- private ZoomLevel(double zoom, Boolean snapMode) {
- this.zoom = zoom;
- this.snapMode = snapMode;
- }
-
- public double getZoom() {
- return zoom;
- }
-
- public Boolean getSnapToWidth() {
- return snapMode;
- }
-
- /**
- * Use default values that can be understood by a human.
- */
- @Override
- public String toString() {
- switch (this) {
- case FIT_TO_WIDTH:
- return "Fit to width";
- case FIT_TO_HEIGHT:
- return "Fit to height";
- case ACTUAL_SIZE:
- return "Actual size";
- case HALF_SIZE:
- return "Half size";
- case DOUBLE_SIZE:
- return "Double size";
- }
- return super.toString();
- }
-
- static ZoomLevel[] values(boolean orderedSelection) {
- if (orderedSelection) {
- return new ZoomLevel[] { //
- FIT_TO_WIDTH, //
- FIT_TO_HEIGHT, //
- ACTUAL_SIZE, //
- HALF_SIZE, //
- DOUBLE_SIZE,//
- };
- }
-
- return values();
- }
- }
-
- private boolean vertical;
- private boolean small;
-
- private JButton zoomIn;
- private JButton zoomOut;
- private JButton snapWidth;
- private JButton snapHeight;
- private JLabel zoomLabel;
-
- @SuppressWarnings("rawtypes") // JComboBox<?> is not java 1.6 compatible
- private JComboBox zoombox;
-
- private double zoom = 1;
- private Boolean snapMode = true;
-
- @SuppressWarnings("rawtypes") // JComboBox<?> not compatible java 1.6
- private DefaultComboBoxModel zoomBoxModel;
-
- /**
- * Create a new {@link ZoomBox}.
- */
- @SuppressWarnings({ "unchecked", "rawtypes" }) // JComboBox<?> not
- // compatible java 1.6
- public ZoomBox() {
- zoomIn = new JButton();
- zoomIn.addActionListener(new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- zoomIn(1);
- }
- });
-
- zoomBoxModel = new DefaultComboBoxModel(ZoomLevel.values(true));
- zoombox = new JComboBox(zoomBoxModel);
- zoombox.setEditable(true);
- zoombox.addActionListener(new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- Object selected = zoomBoxModel.getSelectedItem();
-
- if (selected == null) {
- return;
- }
-
- if (selected instanceof ZoomLevel) {
- ZoomLevel selectedZoomLevel = (ZoomLevel) selected;
- setZoomSnapMode(selectedZoomLevel.getZoom(),
- selectedZoomLevel.getSnapToWidth());
- } else {
- String selectedString = selected.toString();
- selectedString = selectedString.trim();
- if (selectedString.endsWith("%")) {
- selectedString = selectedString
- .substring(0, selectedString.length() - 1)
- .trim();
- }
-
- try {
- int pc = Integer.parseInt(selectedString);
- if (pc <= 0) {
- throw new NumberFormatException("invalid");
- }
-
- setZoomSnapMode(pc / 100.0, null);
- } catch (NumberFormatException nfe) {
- }
- }
-
- fireActionPerformed(ZOOM_CHANGED);
- }
- });
-
- zoomOut = new JButton();
- zoomOut.addActionListener(new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- zoomOut(1);
- }
- });
-
- snapWidth = new JButton();
- snapWidth.addActionListener(new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- setSnapMode(true);
- }
- });
-
- snapHeight = new JButton();
- snapHeight.addActionListener(new ActionListener() {
- @Override
- public void actionPerformed(ActionEvent e) {
- setSnapMode(false);
- }
- });
-
- zoomLabel = new JLabel();
-
- setIcons(null, null, null, null);
- setOrientation(vertical);
- }
-
- /**
- * The zoom level.
- * <p>
- * It usually returns 1 (default value), the value you passed yourself or 1
- * (a snap to width or snap to height was asked by the user).
- * <p>
- * Will cause a fire event if needed.
- *
- * @param zoom
- * the zoom level
- */
- public void setZoom(double zoom) {
- if (this.zoom != zoom) {
- doSetZoom(zoom);
- fireActionPerformed(ZOOM_CHANGED);
- }
- }
-
- /**
- * The snap mode (NULL means no snap mode, TRUE for snap to width, FALSE for
- * snap to height).
- * <p>
- * Will cause a fire event if needed.
- *
- * @param snapToWidth
- * the snap mode
- */
- public void setSnapMode(Boolean snapToWidth) {
- if (this.snapMode != snapToWidth) {
- doSetSnapMode(snapToWidth);
- fireActionPerformed(ZOOM_CHANGED);
- }
- }
-
- /**
- * Set both {@link ZoomBox#setZoom(double)} and
- * {@link ZoomBox#setSnapMode(Boolean)} but fire only one change event.
- * <p>
- * Will cause a fire event if needed.
- *
- * @param zoom
- * the zoom level
- * @param snapMode
- * the snap mode
- */
- public void setZoomSnapMode(double zoom, Boolean snapMode) {
- if (this.zoom != zoom || this.snapMode != snapMode) {
- doSetZoom(zoom);
- doSetSnapMode(snapMode);
- fireActionPerformed(ZOOM_CHANGED);
- }
- }
-
- /**
- * The zoom level.
- * <p>
- * It usually returns 1 (default value), the value you passed yourself or 0
- * (a snap to width or snap to height was asked by the user).
- *
- * @return the zoom level
- */
- public double getZoom() {
- return zoom;
- }
-
- /**
- * The snap mode (NULL means no snap mode, TRUE for snap to width, FALSE for
- * snap to height).
- *
- * @return the snap mode
- */
- public Boolean getSnapMode() {
- return snapMode;
- }
-
- /**
- * Zoom in, by a certain amount in "steps".
- * <p>
- * Note that zoomIn(-1) is the same as zoomOut(1).
- *
- * @param steps
- * the number of zoom steps to make, can be negative
- */
- public void zoomIn(int steps) {
- // TODO: redo zoomIn/zoomOut correctly
- if (steps < 0) {
- zoomOut(-steps);
- return;
- }
-
- double newZoom = zoom;
- for (int i = 0; i < steps; i++) {
- newZoom = newZoom + (newZoom < 0.1 ? 0.01 : 0.1);
- if (newZoom > 0.1) {
- newZoom = Math.round(newZoom * 10.0) / 10.0; // snap to 10%
- } else {
- newZoom = Math.round(newZoom * 100.0) / 100.0; // snap to 1%
- }
- }
-
- setZoomSnapMode(newZoom, null);
- fireActionPerformed(ZOOM_CHANGED);
- }
-
- /**
- * Zoom out, by a certain amount in "steps".
- * <p>
- * Note that zoomOut(-1) is the same as zoomIn(1).
- *
- * @param steps
- * the number of zoom steps to make, can be negative
- */
- public void zoomOut(int steps) {
- if (steps < 0) {
- zoomIn(-steps);
- return;
- }
-
- double newZoom = zoom;
- for (int i = 0; i < steps; i++) {
- newZoom = newZoom - (newZoom > 0.19 ? 0.1 : 0.01);
- if (newZoom < 0.01) {
- newZoom = 0.01;
- break;
- }
-
- if (newZoom > 0.1) {
- newZoom = Math.round(newZoom * 10.0) / 10.0; // snap to 10%
- } else {
- newZoom = Math.round(newZoom * 100.0) / 100.0; // snap to 1%
- }
- }
-
- setZoomSnapMode(newZoom, null);
- fireActionPerformed(ZOOM_CHANGED);
- }
-
- /**
- * Set icons for the buttons instead of square brackets.
- * <p>
- * Any NULL value will make the button use square brackets again.
- *
- * @param zoomIn
- * the icon of the button "go to first page"
- * @param zoomOut
- * the icon of the button "go to previous page"
- * @param snapWidth
- * the icon of the button "go to next page"
- * @param snapHeight
- * the icon of the button "go to last page"
- */
- public void setIcons(Icon zoomIn, Icon zoomOut, Icon snapWidth,
- Icon snapHeight) {
- this.zoomIn.setIcon(zoomIn);
- this.zoomIn.setText(zoomIn == null ? "+" : "");
- this.zoomOut.setIcon(zoomOut);
- this.zoomOut.setText(zoomOut == null ? "-" : "");
- this.snapWidth.setIcon(snapWidth);
- this.snapWidth.setText(snapWidth == null ? "W" : "");
- this.snapHeight.setIcon(snapHeight);
- this.snapHeight.setText(snapHeight == null ? "H" : "");
- }
-
- /**
- * A smaller {@link ZoomBox} that uses buttons instead of a big combo box
- * for the zoom modes.
- * <p>
- * Always small in vertical orientation.
- *
- * @return TRUE if it is small
- */
- public boolean getSmall() {
- return small;
- }
-
- /**
- * A smaller {@link ZoomBox} that uses buttons instead of a big combo box
- * for the zoom modes.
- * <p>
- * Always small in vertical orientation.
- *
- * @param small
- * TRUE to set it small
- *
- * @return TRUE if it changed something
- */
- public boolean setSmall(boolean small) {
- return setUi(small, vertical);
- }
-
- /**
- * The general orientation of the component.
- *
- * @return TRUE for vertical orientation, FALSE for horisontal orientation
- */
- public boolean getOrientation() {
- return vertical;
- }
-
- /**
- * The general orientation of the component.
- *
- * @param vertical
- * TRUE for vertical orientation, FALSE for horisontal
- * orientation
- *
- * @return TRUE if it changed something
- */
- public boolean setOrientation(boolean vertical) {
- return setUi(small, vertical);
- }
-
- /**
- * Set the zoom level, no fire event.
- * <p>
- * It usually returns 1 (default value), the value you passed yourself or 0
- * (a snap to width or snap to height was asked by the user).
- *
- * @param zoom
- * the zoom level
- */
- private void doSetZoom(double zoom) {
- if (zoom > 0) {
- String zoomStr = Integer.toString((int) Math.round(zoom * 100))
- + " %";
- zoomLabel.setText(zoomStr);
- if (snapMode == null) {
- zoomBoxModel.setSelectedItem(zoomStr);
- }
- }
-
- this.zoom = zoom;
- }
-
- /**
- * Set the snap mode, no fire event.
- *
- * @param snapToWidth
- * the snap mode
- */
- private void doSetSnapMode(Boolean snapToWidth) {
- if (snapToWidth == null) {
- String zoomStr = Integer.toString((int) Math.round(zoom * 100))
- + " %";
- if (zoom > 0) {
- zoomBoxModel.setSelectedItem(zoomStr);
- }
- } else {
- for (ZoomLevel level : ZoomLevel.values()) {
- if (level.getSnapToWidth() == snapToWidth) {
- zoomBoxModel.setSelectedItem(level);
- }
- }
- }
-
- this.snapMode = snapToWidth;
- }
-
- private boolean setUi(boolean small, boolean vertical) {
- if (getWidth() == 0 || this.small != small
- || this.vertical != vertical) {
- this.small = small;
- this.vertical = vertical;
-
- BoxLayout layout = new BoxLayout(this,
- vertical ? BoxLayout.Y_AXIS : BoxLayout.X_AXIS);
- this.removeAll();
- setLayout(layout);
-
- if (vertical || small) {
- this.add(zoomIn);
- this.add(snapWidth);
- this.add(snapHeight);
- this.add(zoomOut);
- this.add(zoomLabel);
- } else {
- this.add(zoomIn);
- this.add(zoombox);
- this.add(zoomOut);
- }
-
- this.revalidate();
- this.repaint();
-
- return true;
- }
-
- return false;
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff