Mercurial > projects > dynamin
annotate dynamin/gui/list_box.d @ 103:73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
| author | Jordan Miner <jminer7@gmail.com> |
|---|---|
| date | Tue, 15 May 2012 22:06:02 -0500 |
| parents | 3cfc83a99cbc |
| children | acdbb30fee7e |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* | |
|
103
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
83
diff
changeset
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3 * Copyright Jordan Miner |
| 0 | 4 * |
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103
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
83
diff
changeset
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5 * This Source Code Form is subject to the terms of the Mozilla Public |
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73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
83
diff
changeset
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6 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
83
diff
changeset
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7 * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| 0 | 8 * |
| 9 */ | |
| 10 | |
| 11 module dynamin.gui.list_box; | |
| 12 | |
| 13 import dynamin.all_painting; | |
| 14 import dynamin.all_core; | |
| 15 import dynamin.all_gui; | |
| 16 | |
| 17 /** | |
| 18 * A control that shows a list of items that can be selected. | |
| 19 * | |
| 20 * The appearance of a list box with Windows Classic: | |
| 21 * | |
| 22 * $(IMAGE ../web/example_list_box.png) | |
| 23 */ | |
| 24 class ListBox : Scrollable { | |
| 25 protected: | |
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26 List!(string, true) _items; |
| 0 | 27 int _selectedIndex = -1; |
| 28 | |
| 29 override void whenKeyDown(KeyEventArgs e) { | |
| 30 if(e.key == Key.Down) { | |
| 31 if(selectedIndex + 1 < _items.count) | |
| 32 selectedIndex = selectedIndex + 1; | |
| 33 } else if(e.key == Key.Up) { | |
| 34 if(selectedIndex - 1 >= 0) | |
| 35 selectedIndex = selectedIndex - 1; | |
| 36 } | |
| 37 } | |
| 38 override Size bestSize() { | |
| 39 return Size(0, 13*_items.count); | |
| 40 } | |
| 41 override void whenContentPainting(PaintingEventArgs e) { | |
| 42 with(e.graphics) { | |
| 43 source = backColor; | |
| 44 paint(); | |
| 45 auto clip = getClipExtents(); | |
| 46 int start = cast(int)clip.y/13, end = cast(int)clip.bottom/13+1; | |
| 47 for(int i = start; i < _items.count && i < end; ++i) { | |
| 48 source = Color.Black; | |
| 49 if(i == _selectedIndex) { | |
| 50 // TODO: hack | |
| 51 //Source = WindowsTheme.getColor(dynamin.c.windows.COLOR_HIGHLIGHT); | |
| 52 rectangle(0, i*13, width, 13); | |
| 53 fill(); | |
| 54 //Source = WindowsTheme.getColor(dynamin.c.windows.COLOR_HIGHLIGHTTEXT); | |
| 55 } | |
| 56 drawText(_items[i], 3, i*13); | |
| 57 } | |
| 58 } | |
| 59 } | |
| 60 override void whenContentMouseDown(MouseEventArgs e) { | |
| 61 focus(); | |
| 62 selectedIndex = cast(int)e.y/13; | |
| 63 } | |
| 64 public: | |
| 65 | |
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66 /// Override this method in a subclass to handle the selectionChanged event. |
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whenXX methods have to come before the event if switched to template mixins.
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67 protected void whenSelectionChanged(EventArgs e) { } |
| 0 | 68 /// This event occurs after the selection has changed. |
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parents:
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69 Event!(whenSelectionChanged) selectionChanged; |
| 0 | 70 |
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parents:
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71 void whenListItemsChanged(ListChangeType, string, string, uint) { |
| 0 | 72 super.layout(); |
| 73 repaint(); | |
| 74 } | |
| 75 | |
| 76 /// | |
| 77 this() { | |
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Add Event.setUp() and use in place of mainHandler and dispatcher.
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parents:
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78 selectionChanged.setUp(&whenSelectionChanged); |
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83
3cfc83a99cbc
Add List.opIndexAssign and switch to one callback for change notification.
Jordan Miner <jminer7@gmail.com>
parents:
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diff
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79 _items = new List!(string, true)(&whenListItemsChanged); |
| 0 | 80 |
| 81 super(); | |
| 82 _focusable = true; | |
| 83 // TODO: hack | |
| 84 backColor = WindowsTheme.getColor(5); | |
| 85 } | |
| 86 /// | |
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55
c138461bf845
Add focusing and other changes that are related
Jordan Miner <jminer7@gmail.com>
parents:
10
diff
changeset
|
87 List!(string, true) items() { |
| 0 | 88 return _items; |
| 89 } | |
| 90 /// | |
| 91 int selectedIndex() { return _selectedIndex; } | |
| 92 /// ditto | |
| 93 void selectedIndex(int i) { | |
| 94 if(i == _selectedIndex) | |
| 95 return; | |
| 96 _selectedIndex = i; | |
| 97 repaint(); | |
| 98 selectionChanged(new EventArgs); | |
| 99 } | |
| 100 } | |
| 101 |