|
1 /* |
|
2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Visual list observer interface |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 |
|
20 |
|
21 /** |
|
22 * @internal reviewed 04/07/2007 by M Byrne |
|
23 */ |
|
24 |
|
25 #ifndef M_GLXVISUALLISTOBSERVER_H |
|
26 #define M_GLXVISUALLISTOBSERVER_H |
|
27 |
|
28 #include <e32std.h> |
|
29 #include <glxlistdefs.h> |
|
30 |
|
31 class MGlxVisualList; |
|
32 class CAlfVisual; |
|
33 |
|
34 /** |
|
35 * MGlxVisualListObserver |
|
36 * |
|
37 * Observer to a list of visuals |
|
38 * |
|
39 * @author Aki Vanhatalo |
|
40 */ |
|
41 class MGlxVisualListObserver |
|
42 { |
|
43 public: |
|
44 |
|
45 /** |
|
46 * Focus has changed. |
|
47 * @param aFocusIndex new focus index |
|
48 * @param aItemsPerSecond speed of focus change |
|
49 * @param aList The visual list to which this notification relates |
|
50 * @param aType Type/direction of focus change |
|
51 */ |
|
52 virtual void HandleFocusChangedL(TInt aFocusIndex, TReal32 aItemsPerSecond, |
|
53 MGlxVisualList* aList, NGlxListDefs::TFocusChangeType aType) = 0; |
|
54 |
|
55 /** |
|
56 * Size of the rendering area has changed |
|
57 * @param aSize new size of the area |
|
58 * @param aList The visual list to which this notification relates |
|
59 */ |
|
60 virtual void HandleSizeChanged(const TSize& aSize, |
|
61 MGlxVisualList* aList) = 0; |
|
62 |
|
63 /** |
|
64 * Visual is being removed. The visual instance will be |
|
65 * destroyed after this call returns. |
|
66 * @param aVisual The visual which is being removed |
|
67 * @param aList The visual list to which this notification relates |
|
68 */ |
|
69 virtual void HandleVisualRemoved(const CAlfVisual* aVisual, |
|
70 MGlxVisualList* aList) = 0; |
|
71 |
|
72 /** |
|
73 * Visual has been added |
|
74 * @param aVisual The new visual |
|
75 * @param aIndex The list index of the new visual |
|
76 * @param aList The visual list to which this notification relates |
|
77 */ |
|
78 virtual void HandleVisualAddedL( CAlfVisual* aVisual, TInt aIndex, |
|
79 MGlxVisualList* aList) = 0; |
|
80 }; |
|
81 |
|
82 #endif // M_GLXVISUALLISTOBSERVER_H |