Mercurial > cgi-bin > hgweb.cgi > ClipMan
annotate src/name/blackcap/clipman/Misc.kt @ 45:ca8a23bae4fa
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| author | David Barts <n5jrn@me.com> |
|---|---|
| date | Mon, 10 Feb 2020 06:55:07 -0700 |
| parents | 33fbe3a78d84 |
| children | 19d9da731c43 |
| rev | line source |
|---|---|
| 27 | 1 /* |
| 2 * Miscellaneous utility stuff. | |
| 3 */ | |
| 4 package name.blackcap.clipman | |
| 5 | |
| 6 import java.awt.Dimension | |
| 7 import java.awt.Toolkit | |
|
41
33fbe3a78d84
Got the settings stuff compiling (untested).
David Barts <n5jrn@me.com>
parents:
31
diff
changeset
|
8 import java.nio.charset.Charset |
| 27 | 9 import javax.swing.* |
| 10 import javax.swing.text.JTextComponent | |
| 11 | |
| 12 /** | |
| 31 | 13 * Name of the character set (encoding) we preferentially use for many |
| 14 * things. | |
| 15 */ | |
| 16 val CHARSET_NAME = "UTF-8" | |
|
41
33fbe3a78d84
Got the settings stuff compiling (untested).
David Barts <n5jrn@me.com>
parents:
31
diff
changeset
|
17 val CHARSET = Charset.forName(CHARSET_NAME) |
| 31 | 18 |
| 19 /** | |
| 27 | 20 * Allows a val to have lateinit functionality. It is an error to attempt |
| 21 * to retrieve this object's value unless it has been set, and it is an | |
| 22 * error to attempt to set the value of an already-set object. | |
| 23 * @param <T> type of the associated value | |
| 24 */ | |
| 25 class LateInit<T> { | |
| 26 private var _v: T? = null | |
| 27 | |
| 28 /** | |
| 29 * The value associated with this object. The name of this property is | |
| 30 * deliberately short. | |
| 31 */ | |
| 32 var v: T | |
| 33 get() { | |
| 34 if (_v == null) { | |
| 35 throw IllegalStateException("cannot retrieve un-initialized value") | |
| 36 } else { | |
| 37 return _v!! | |
| 38 } | |
| 39 } | |
| 40 @Synchronized set(value) { | |
| 41 if (_v != null) { | |
| 42 throw IllegalStateException("cannot set already-initialized value") | |
| 43 } | |
| 44 _v = value | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 /** | |
| 49 * Run something in the Swing thread, asynchronously. | |
| 50 * @param block lambda containing code to run | |
| 51 */ | |
| 52 fun inSwingThread(block: () -> Unit) { | |
| 53 SwingUtilities.invokeLater(Runnable(block)) | |
| 54 } | |
| 55 | |
| 56 /** | |
| 57 * Run something in the Swing thread, synchronously. | |
| 58 * @param block lambda containing code to run | |
| 59 */ | |
| 60 fun inSynSwingThread(block: () -> Unit) { | |
| 61 SwingUtilities.invokeAndWait(Runnable(block)) | |
| 62 } | |
| 63 | |
| 64 /** | |
| 65 * Autosize a JTextComponent to a given width. | |
| 66 * @param width the width | |
| 67 */ | |
| 68 fun JTextComponent.autoSize(width: Int): Unit { | |
| 69 val SLOP = 10 | |
| 70 val dim = Dimension(width, width) | |
| 71 preferredSize = dim | |
| 72 size = dim | |
| 73 val r = modelToView(document.length) | |
| 74 preferredSize = Dimension(width, r.y + r.height + SLOP) | |
| 75 } | |
| 76 | |
| 77 /** | |
| 78 * Make a shortcut for a menu item, using the standard combining key | |
| 79 * (control, command, etc.) for the system we're on. | |
| 80 * @param key KeyEvent constant describing the key | |
| 81 */ | |
| 82 fun JMenuItem.makeShortcut(key: Int): Unit { | |
| 83 val SC_KEY_MASK = Toolkit.getDefaultToolkit().menuShortcutKeyMask | |
| 84 setAccelerator(KeyStroke.getKeyStroke(key, SC_KEY_MASK)) | |
| 85 } | |
| 86 | |
| 87 /** | |
| 88 * Given a MenuElement object, get the item whose text matches the | |
| 89 * specified text. | |
| 90 * @param text to match | |
| 91 * @return first matched element, null if no match found | |
| 92 */ | |
| 93 fun MenuElement.getItem(name: String) : JMenuItem? { | |
| 94 subElements.forEach { | |
| 95 val jMenuItem = it.component as? JMenuItem | |
| 96 if (jMenuItem?.text == name) { | |
| 97 return jMenuItem | |
| 98 } | |
| 99 } | |
| 100 return null | |
| 101 } | |
| 102 |