|
1 /* |
|
2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * |
|
5 * This program is free software: you can redistribute it and/or modify |
|
6 * it under the terms of the GNU Lesser General Public License as published by |
|
7 * the Free Software Foundation, version 2.1 of the License. |
|
8 * |
|
9 * This program is distributed in the hope that it will be useful, |
|
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
12 * GNU Lesser General Public License for more details. |
|
13 * |
|
14 * You should have received a copy of the GNU Lesser General Public License |
|
15 * along with this program. If not, |
|
16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/". |
|
17 * |
|
18 * Description: |
|
19 * |
|
20 */ |
|
21 |
|
22 #ifndef ViewportMetaData_h |
|
23 #define ViewportMetaData_h |
|
24 |
|
25 #include <QFlags> |
|
26 #include <QObject> |
|
27 #include <QRect> |
|
28 |
|
29 namespace GVA { |
|
30 |
|
31 struct ParsedViewportData{ |
|
32 QString m_width; |
|
33 QString m_height; |
|
34 qreal m_minScale; |
|
35 }; |
|
36 |
|
37 class ViewportMetaData { |
|
38 public: |
|
39 enum { |
|
40 ValueUndefined = -1 |
|
41 }; |
|
42 |
|
43 enum ScaleLimit { |
|
44 UserDefinedMinumumScale = 0x1, |
|
45 UserDefinedMaximumScale = 0x2, |
|
46 UserDefinedInitialScale = 0x4, |
|
47 }; |
|
48 Q_DECLARE_FLAGS(ScaleLimits, ScaleLimit) |
|
49 |
|
50 ViewportMetaData(); |
|
51 ViewportMetaData(const ViewportMetaData&); |
|
52 ViewportMetaData& operator=(const ViewportMetaData&); |
|
53 ~ViewportMetaData(); |
|
54 |
|
55 void adjustViewportData(const QRect& clientRect); |
|
56 void updateViewportData(const QSize& size, const QRect& clientRect); |
|
57 void orientationChanged(const QRect& newClientRect); |
|
58 bool isLayoutNeeded(); |
|
59 void reset() {initialize();} |
|
60 |
|
61 void setFlag(ScaleLimit scaleLimit, bool enable) |
|
62 { |
|
63 if (enable) |
|
64 m_scaleLimits |= scaleLimit; |
|
65 else |
|
66 m_scaleLimits &= !scaleLimit; |
|
67 } |
|
68 |
|
69 bool getFlag(ScaleLimit scaleLimit) |
|
70 { |
|
71 return m_scaleLimits.testFlag(scaleLimit); |
|
72 } |
|
73 |
|
74 protected: |
|
75 void initialize(); |
|
76 void adjustZoomValues(const QRect& clientRect); |
|
77 bool isUserSpecifiedWidth(); |
|
78 bool isUserSpecifiedHeight(); |
|
79 |
|
80 public: |
|
81 qreal m_initialScale; |
|
82 qreal m_minimumScale; |
|
83 qreal m_maximumScale; |
|
84 int m_width; |
|
85 int m_height; |
|
86 bool m_userScalable; |
|
87 ScaleLimits m_scaleLimits; |
|
88 bool m_isValid; |
|
89 ParsedViewportData m_specifiedData; |
|
90 };//ViewportMetaData |
|
91 |
|
92 Q_DECLARE_OPERATORS_FOR_FLAGS(ViewportMetaData::ScaleLimits) |
|
93 |
|
94 } //namespace GVA |
|
95 |
|
96 #endif //ViewportMetaData_h |