| 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.gui.widgets;
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| 3 |
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| 4 | import static org.openstreetmap.josm.tools.I18n.tr;
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| 5 |
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| 6 | import java.awt.Cursor;
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| 7 | import java.awt.event.MouseEvent;
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| 8 | import java.awt.event.MouseListener;
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| 9 |
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| 10 | import javax.swing.JLabel;
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| 11 | import javax.swing.SwingUtilities;
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| 12 |
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| 13 | import org.openstreetmap.josm.gui.datatransfer.ClipboardUtils;
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| 14 | import org.openstreetmap.josm.tools.OpenBrowser;
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| 15 |
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| 16 | /**
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| 17 | * Label that contains a clickable link.
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| 18 | * @since 6340
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| 19 | */
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| 20 | public class UrlLabel extends JLabel implements MouseListener {
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| 21 |
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| 22 | private String url = "";
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| 23 | private String description = "";
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| 24 |
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| 25 | /**
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| 26 | * Constructs a new empty {@code UrlLabel}.
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| 27 | */
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| 28 | public UrlLabel() {
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| 29 | addMouseListener(this);
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| 30 | setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
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| 31 | }
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| 32 |
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| 33 | /**
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| 34 | * Constructs a new {@code UrlLabel} for the given URL.
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| 35 | * @param url The URL to use, also used as description
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| 36 | */
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| 37 | public UrlLabel(String url) {
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| 38 | this (url, url, 0);
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| 39 | }
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| 40 |
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| 41 | /**
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| 42 | * Constructs a new {@code UrlLabel} for the given URL and font increase.
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| 43 | * @param url The URL to use, also used as description
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| 44 | * @param fontPlus The font increase in 1/72 of an inch units.
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| 45 | */
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| 46 | public UrlLabel(String url, int fontPlus) {
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| 47 | this (url, url, fontPlus);
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| 48 | }
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| 49 |
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| 50 | /**
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| 51 | * Constructs a new {@code UrlLabel} for the given URL and description.
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| 52 | * @param url The URL to use
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| 53 | * @param description The description to display
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| 54 | */
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| 55 | public UrlLabel(String url, String description) {
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| 56 | this (url, description, 0);
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| 57 | }
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| 58 |
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| 59 | /**
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| 60 | * Constructs a new {@code UrlLabel} for the given URL, description and font increase.
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| 61 | * @param url The URL to use
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| 62 | * @param description The description to display
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| 63 | * @param fontPlus The font increase in 1/72 of an inch units.
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| 64 | */
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| 65 | public UrlLabel(String url, String description, int fontPlus) {
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| 66 | this();
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| 67 | setUrl(url);
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| 68 | setDescription(description);
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| 69 | if (fontPlus != 0) {
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| 70 | setFont(getFont().deriveFont(0, (float) getFont().getSize()+fontPlus));
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| 71 | }
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| 72 | refresh();
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| 73 | }
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| 74 |
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| 75 | protected final void refresh() {
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| 76 | if (url != null && !url.isEmpty()) {
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| 77 | setText("<html><a href=\""+url+"\">"+description+"</a></html>");
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| 78 | setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
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| 79 | setToolTipText(String.format("<html>%s<br/>%s</html>", url, tr("Right click = copy to clipboard")));
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| 80 | } else {
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| 81 | setText("<html>" + description + "</html>");
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| 82 | setCursor(null);
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| 83 | setToolTipText(null);
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| 84 | }
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| 85 | }
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| 86 |
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| 87 | /**
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| 88 | * Sets the URL to be visited if the user clicks on this URL label.
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| 89 | * If null or empty, the label turns into a normal label without hyperlink.
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| 90 | *
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| 91 | * @param url the url. Can be null.
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| 92 | */
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| 93 | public final void setUrl(String url) {
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| 94 | this.url = url;
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| 95 | refresh();
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| 96 | }
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| 97 |
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| 98 | /**
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| 99 | * Sets the text part of the URL label. Defaults to the empty string if description is null.
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| 100 | *
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| 101 | * @param description the description
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| 102 | */
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| 103 | public final void setDescription(String description) {
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| 104 | this.description = description == null ? "" : description;
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| 105 | this.description = this.description.replace("&", "&").replace(">", ">").replace("<", "<");
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| 106 | refresh();
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| 107 | }
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| 108 |
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| 109 | @Override
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| 110 | public void mouseClicked(MouseEvent e) {
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| 111 | if (url != null && !url.isEmpty()) {
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| 112 | if (SwingUtilities.isLeftMouseButton(e)) {
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| 113 | OpenBrowser.displayUrl(url);
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| 114 | } else if (SwingUtilities.isRightMouseButton(e)) {
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| 115 | ClipboardUtils.copyString(url);
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| 116 | }
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| 117 | }
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| 118 | }
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| 119 |
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| 120 | @Override
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| 121 | public void mousePressed(MouseEvent e) {
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| 122 | // Ignored
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| 123 | }
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| 124 |
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| 125 | @Override
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| 126 | public void mouseEntered(MouseEvent e) {
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| 127 | // Ignored
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| 128 | }
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| 129 |
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| 130 | @Override
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| 131 | public void mouseExited(MouseEvent e) {
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| 132 | // Ignored
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| 133 | }
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| 134 |
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| 135 | @Override
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| 136 | public void mouseReleased(MouseEvent e) {
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| 137 | // Ignored
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| 138 | }
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| 139 | }
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