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| 36 | |
| 37 | #include "qdeclarativeplaceeditorialmodel_p.h" |
| 38 | |
| 39 | #include <QtCore/QUrl> |
| 40 | #include <QtLocation/QPlaceEditorial> |
| 41 | |
| 42 | QT_BEGIN_NAMESPACE |
| 43 | |
| 44 | /*! |
| 45 | \qmltype EditorialModel |
| 46 | \instantiates QDeclarativePlaceEditorialModel |
| 47 | \inqmlmodule QtLocation |
| 48 | \ingroup qml-QtLocation5-places |
| 49 | \ingroup qml-QtLocation5-places-models |
| 50 | \since QtLocation 5.5 |
| 51 | |
| 52 | \brief The EditorialModel type provides a model of place editorials. |
| 53 | |
| 54 | The EditorialModel is a read-only model used to fetch editorials related to a \l Place. |
| 55 | Binding a \l Place via \l EditorialModel::place initiates an initial fetch of editorials. |
| 56 | The model performs fetches incrementally and is intended to be used in conjunction |
| 57 | with a View such as a \l ListView. When the View reaches the last of the editorials |
| 58 | currently in the model, a fetch is performed to retrieve more if they are available. |
| 59 | The View is automatically updated as the editorials are received. The number of |
| 60 | editorials which are fetched at a time is specified by the \l batchSize property. |
| 61 | The total number of editorials available can be accessed via the \l totalCount property. |
| 62 | |
| 63 | The model returns data for the following roles: |
| 64 | |
| 65 | \table |
| 66 | \header |
| 67 | \li Role |
| 68 | \li Type |
| 69 | \li Description |
| 70 | \row |
| 71 | \li text |
| 72 | \li string |
| 73 | \li The editorial's textual description of the place. It can be either rich (HTML based) text or plain text |
| 74 | depending upon the provider. |
| 75 | \row |
| 76 | \li title |
| 77 | \li string |
| 78 | \li The title of the editorial. |
| 79 | \row |
| 80 | \li language |
| 81 | \li string |
| 82 | \li The language that the editorial is written in. |
| 83 | \row |
| 84 | \li supplier |
| 85 | \li \l Supplier |
| 86 | \li The supplier of the editorial. |
| 87 | \row |
| 88 | \li user |
| 89 | \li \l {QtLocation::User}{User} |
| 90 | \li The user who contributed the editorial. |
| 91 | \row |
| 92 | \li attribution |
| 93 | \li string |
| 94 | \li Attribution text which must be displayed when displaying the editorial. |
| 95 | \endtable |
| 96 | |
| 97 | \section1 Example |
| 98 | |
| 99 | The following example shows how to display editorials for a place: |
| 100 | |
| 101 | \snippet declarative/places.qml QtQuick import |
| 102 | \snippet declarative/maps.qml QtLocation import |
| 103 | \codeline |
| 104 | \snippet declarative/places.qml EditorialModel |
| 105 | |
| 106 | */ |
| 107 | |
| 108 | /*! |
| 109 | \qmlproperty Place EditorialModel::place |
| 110 | |
| 111 | This property holds the Place that the editorials are for. |
| 112 | */ |
| 113 | |
| 114 | /*! |
| 115 | \qmlproperty int EditorialModel::batchSize |
| 116 | |
| 117 | This property holds the batch size to use when fetching more editorials items. |
| 118 | */ |
| 119 | |
| 120 | /*! |
| 121 | \qmlproperty int EditorialModel::totalCount |
| 122 | |
| 123 | This property holds the total number of editorial items for the place. |
| 124 | */ |
| 125 | |
| 126 | QDeclarativePlaceEditorialModel::QDeclarativePlaceEditorialModel(QObject *parent) |
| 127 | : QDeclarativePlaceContentModel(QPlaceContent::EditorialType, parent) |
| 128 | { |
| 129 | } |
| 130 | |
| 131 | QDeclarativePlaceEditorialModel::~QDeclarativePlaceEditorialModel() |
| 132 | { |
| 133 | } |
| 134 | |
| 135 | /*! |
| 136 | \internal |
| 137 | */ |
| 138 | QVariant QDeclarativePlaceEditorialModel::data(const QModelIndex &index, int role) const |
| 139 | { |
| 140 | if (!index.isValid()) |
| 141 | return QVariant(); |
| 142 | |
| 143 | if (index.row() >= rowCount(parent: index.parent()) || index.row() < 0) |
| 144 | return QVariant(); |
| 145 | |
| 146 | const QPlaceEditorial &description = m_content.value(akey: index.row()); |
| 147 | |
| 148 | switch (role) { |
| 149 | case TextRole: |
| 150 | return description.text(); |
| 151 | case TitleRole: |
| 152 | return description.title(); |
| 153 | case LanguageRole: |
| 154 | return description.language(); |
| 155 | } |
| 156 | |
| 157 | return QDeclarativePlaceContentModel::data(index, role); |
| 158 | } |
| 159 | |
| 160 | QHash<int, QByteArray> QDeclarativePlaceEditorialModel::roleNames() const |
| 161 | { |
| 162 | QHash<int, QByteArray> roleNames = QDeclarativePlaceContentModel::roleNames(); |
| 163 | roleNames.insert(akey: TextRole, avalue: "text" ); |
| 164 | roleNames.insert(akey: TitleRole, avalue: "title" ); |
| 165 | roleNames.insert(akey: LanguageRole, avalue: "language" ); |
| 166 | return roleNames; |
| 167 | } |
| 168 | |
| 169 | QT_END_NAMESPACE |
| 170 | |