Mercurial > projects > dynamin
annotate dynamin/gui/list_box.d @ 78:651082a9b364
Add Event.setUp() and use in place of mainHandler and dispatcher.
| author | Jordan Miner <jminer7@gmail.com> |
|---|---|
| date | Sat, 06 Feb 2010 15:12:52 -0600 |
| parents | c138461bf845 |
| children | 3cfc83a99cbc |
| rev | line source |
|---|---|
| 0 | 1 // Written in the D programming language |
| 2 // www.digitalmars.com/d/ | |
| 3 | |
| 4 /* | |
| 5 * The contents of this file are subject to the Mozilla Public License Version | |
| 6 * 1.1 (the "License"); you may not use this file except in compliance with | |
| 7 * the License. You may obtain a copy of the License at | |
| 8 * http://www.mozilla.org/MPL/ | |
| 9 * | |
| 10 * Software distributed under the License is distributed on an "AS IS" basis, | |
| 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License | |
| 12 * for the specific language governing rights and limitations under the | |
| 13 * License. | |
| 14 * | |
| 15 * The Original Code is the Dynamin library. | |
| 16 * | |
| 17 * The Initial Developer of the Original Code is Jordan Miner. | |
| 18 * Portions created by the Initial Developer are Copyright (C) 2007-2009 | |
| 19 * the Initial Developer. All Rights Reserved. | |
| 20 * | |
| 21 * Contributor(s): | |
| 22 * Jordan Miner <jminer7@gmail.com> | |
| 23 * | |
| 24 */ | |
| 25 | |
| 26 module dynamin.gui.list_box; | |
| 27 | |
| 28 import dynamin.all_painting; | |
| 29 import dynamin.all_core; | |
| 30 import dynamin.all_gui; | |
| 31 | |
| 32 /** | |
| 33 * A control that shows a list of items that can be selected. | |
| 34 * | |
| 35 * The appearance of a list box with Windows Classic: | |
| 36 * | |
| 37 * $(IMAGE ../web/example_list_box.png) | |
| 38 */ | |
| 39 class ListBox : Scrollable { | |
| 40 protected: | |
|
55
c138461bf845
Add focusing and other changes that are related
Jordan Miner <jminer7@gmail.com>
parents:
10
diff
changeset
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41 List!(string, true) _items; |
| 0 | 42 int _selectedIndex = -1; |
| 43 | |
| 44 override void whenKeyDown(KeyEventArgs e) { | |
| 45 if(e.key == Key.Down) { | |
| 46 if(selectedIndex + 1 < _items.count) | |
| 47 selectedIndex = selectedIndex + 1; | |
| 48 } else if(e.key == Key.Up) { | |
| 49 if(selectedIndex - 1 >= 0) | |
| 50 selectedIndex = selectedIndex - 1; | |
| 51 } | |
| 52 } | |
| 53 override Size bestSize() { | |
| 54 return Size(0, 13*_items.count); | |
| 55 } | |
| 56 override void whenContentPainting(PaintingEventArgs e) { | |
| 57 with(e.graphics) { | |
| 58 source = backColor; | |
| 59 paint(); | |
| 60 auto clip = getClipExtents(); | |
| 61 int start = cast(int)clip.y/13, end = cast(int)clip.bottom/13+1; | |
| 62 for(int i = start; i < _items.count && i < end; ++i) { | |
| 63 source = Color.Black; | |
| 64 if(i == _selectedIndex) { | |
| 65 // TODO: hack | |
| 66 //Source = WindowsTheme.getColor(dynamin.c.windows.COLOR_HIGHLIGHT); | |
| 67 rectangle(0, i*13, width, 13); | |
| 68 fill(); | |
| 69 //Source = WindowsTheme.getColor(dynamin.c.windows.COLOR_HIGHLIGHTTEXT); | |
| 70 } | |
| 71 drawText(_items[i], 3, i*13); | |
| 72 } | |
| 73 } | |
| 74 } | |
| 75 override void whenContentMouseDown(MouseEventArgs e) { | |
| 76 focus(); | |
| 77 selectedIndex = cast(int)e.y/13; | |
| 78 } | |
| 79 public: | |
| 80 | |
|
10
ccc108b25a0a
Convert to using a struct for events. Fix some comments too.
Jordan Miner <jminer7@gmail.com>
parents:
8
diff
changeset
|
81 /// Override this method in a subclass to handle the selectionChanged event. |
|
8
b621b528823d
whenXX methods have to come before the event if switched to template mixins.
Jordan Miner <jminer7@gmail.com>
parents:
0
diff
changeset
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82 protected void whenSelectionChanged(EventArgs e) { } |
| 0 | 83 /// This event occurs after the selection has changed. |
|
10
ccc108b25a0a
Convert to using a struct for events. Fix some comments too.
Jordan Miner <jminer7@gmail.com>
parents:
8
diff
changeset
|
84 Event!(whenSelectionChanged) selectionChanged; |
| 0 | 85 |
|
55
c138461bf845
Add focusing and other changes that are related
Jordan Miner <jminer7@gmail.com>
parents:
10
diff
changeset
|
86 void whenListItemsChanged(string, int) { |
| 0 | 87 super.layout(); |
| 88 repaint(); | |
| 89 } | |
| 90 | |
| 91 /// | |
| 92 this() { | |
|
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651082a9b364
Add Event.setUp() and use in place of mainHandler and dispatcher.
Jordan Miner <jminer7@gmail.com>
parents:
55
diff
changeset
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93 selectionChanged.setUp(&whenSelectionChanged); |
|
55
c138461bf845
Add focusing and other changes that are related
Jordan Miner <jminer7@gmail.com>
parents:
10
diff
changeset
|
94 _items = new List!(string, true)(&whenListItemsChanged, &whenListItemsChanged); |
| 0 | 95 |
| 96 super(); | |
| 97 _focusable = true; | |
| 98 // TODO: hack | |
| 99 backColor = WindowsTheme.getColor(5); | |
| 100 } | |
| 101 /// | |
|
55
c138461bf845
Add focusing and other changes that are related
Jordan Miner <jminer7@gmail.com>
parents:
10
diff
changeset
|
102 List!(string, true) items() { |
| 0 | 103 return _items; |
| 104 } | |
| 105 /// | |
| 106 int selectedIndex() { return _selectedIndex; } | |
| 107 /// ditto | |
| 108 void selectedIndex(int i) { | |
| 109 if(i == _selectedIndex) | |
| 110 return; | |
| 111 _selectedIndex = i; | |
| 112 repaint(); | |
| 113 selectionChanged(new EventArgs); | |
| 114 } | |
| 115 } | |
| 116 |