Mercurial > projects > dynamin
annotate dynamin/gui/text_box.d @ 113:4636a64afabc default tip
Add reverse() function.
| author | Jordan Miner <jminer7@gmail.com> |
|---|---|
| date | Sat, 19 Jan 2013 21:08:52 -0600 |
| parents | 73060bc3f004 |
| children |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* | |
|
103
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
3 * Copyright Jordan Miner |
| 0 | 4 * |
|
103
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
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5 * This Source Code Form is subject to the terms of the Mozilla Public |
|
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
6 * License, v. 2.0. If a copy of the MPL was not distributed with this |
|
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| 0 | 8 * |
| 9 */ | |
| 10 | |
| 11 module dynamin.gui.text_box; | |
| 12 | |
| 13 import dynamin.all_painting; | |
| 14 import dynamin.all_core; | |
| 15 import dynamin.all_gui; | |
| 16 | |
| 17 /** | |
| 18 * A control that allows text to be entered and edited. | |
| 19 * | |
| 20 * The appearance of a text box with Windows Classic: | |
| 21 * | |
| 22 * $(IMAGE ../web/example_text_box.png) | |
| 23 */ | |
| 24 class TextBox : Scrollable { | |
| 25 protected: | |
| 26 string _text; | |
| 27 int _caret = 0; | |
| 28 override Size contentBestSize() { | |
| 29 return Size(0, 0); | |
| 30 } | |
| 31 override void whenContentPainting(PaintingEventArgs e) { | |
| 32 with(e.graphics) { | |
| 33 source = Color.White; | |
| 34 paint(); | |
| 35 source = Color.Black; | |
| 36 drawText(_text, 1, 1); | |
| 37 if(focused) { | |
| 38 Size ex = getTextExtents(_text[0.._caret]); | |
| 39 moveTo(1+ex.width+0.5, 1); | |
| 40 lineTo(1+ex.width+0.5, 14); | |
| 41 stroke(); | |
| 42 } | |
| 43 } | |
| 44 } | |
| 45 override void whenContentMouseDown(MouseEventArgs e) { | |
| 46 focus(); | |
| 47 repaint(); | |
| 48 } | |
| 49 override void whenKeyDown(KeyEventArgs e) { | |
| 50 switch(e.key) { | |
| 51 case Key.Backspace: | |
| 52 if(_caret > 0) | |
| 53 _text = _text[0.._caret-1] ~ _text[_caret..$]; | |
| 54 if(_caret > 0) | |
| 55 _caret--; | |
| 56 break; | |
| 57 case Key.Delete: | |
| 58 if(_text.length > _caret) | |
| 59 _text = _text[0.._caret] ~ _text[_caret+1..$]; | |
| 60 break; | |
| 61 case Key.Right: | |
| 62 if(_caret < _text.length) | |
| 63 _caret++; | |
| 64 break; | |
| 65 case Key.Left: | |
| 66 if(_caret > 0) | |
| 67 _caret--; | |
| 68 break; | |
| 69 case Key.Home: | |
| 70 _caret = 0; | |
| 71 break; | |
| 72 case Key.End: | |
| 73 _caret = _text.length; | |
| 74 break; | |
| 75 default: | |
| 76 return; | |
| 77 } | |
| 78 repaint(); | |
| 79 } | |
| 80 override void whenKeyTyped(KeyTypedEventArgs e) { | |
| 81 _text = format("{}{}{}", _text[0.._caret], e.character, _text[_caret..$]); | |
| 82 _caret++; | |
| 83 repaint(); | |
| 84 } | |
| 85 override void whenMouseDown(MouseEventArgs e) { | |
| 86 focus(); | |
| 87 } | |
| 88 public: | |
| 89 override Size bestSize() { | |
| 90 // TODO: columns and rows | |
| 91 return Size(100, 20); | |
| 92 } | |
| 93 override int baseline() { return 14; } | |
| 94 | |
|
10
ccc108b25a0a
Convert to using a struct for events. Fix some comments too.
Jordan Miner <jminer7@gmail.com>
parents:
8
diff
changeset
|
95 /// Override this method in a subclass to handle the selectionChanged event. |
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8
b621b528823d
whenXX methods have to come before the event if switched to template mixins.
Jordan Miner <jminer7@gmail.com>
parents:
0
diff
changeset
|
96 protected void whenSelectionChanged(EventArgs e) { } |
| 0 | 97 /// This event occurs after the selection has changed. |
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10
ccc108b25a0a
Convert to using a struct for events. Fix some comments too.
Jordan Miner <jminer7@gmail.com>
parents:
8
diff
changeset
|
98 Event!(whenSelectionChanged) selectionChanged; |
| 0 | 99 |
| 100 this() { | |
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78
651082a9b364
Add Event.setUp() and use in place of mainHandler and dispatcher.
Jordan Miner <jminer7@gmail.com>
parents:
10
diff
changeset
|
101 selectionChanged.setUp(&whenSelectionChanged); |
| 0 | 102 |
| 103 super(); | |
| 104 _focusable = true; | |
| 105 content.cursor = Cursor.Text; | |
| 106 | |
| 107 // TODO: change if Multiline is added | |
| 108 visibleScrollBars = VisibleScrollBars.None; | |
| 109 elasticX = true; | |
| 110 elasticY = false; | |
| 111 } | |
| 112 } | |
| 113 |