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New GUI control for an editable list of colors from a color scheme.
Supports drag and drop reordering, drag and drop colors from external apps (on supported OS).
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| /** \ingroup gui | ||
| * \class QgsColorSwatchDelegate | ||
| * A delegate for showing a color swatch in a list | ||
| * @see QgsColorSchemeList | ||
| * @note introduced in QGIS 2.5 | ||
| */ | ||
| class QgsColorSwatchDelegate : QAbstractItemDelegate | ||
| { | ||
| %TypeHeaderCode | ||
| #include <qgscolorschemelist.h> | ||
| %End | ||
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| public: | ||
| QgsColorSwatchDelegate( QWidget *parent /TransferThis/ = 0 ); | ||
| void paint( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const; | ||
| QSize sizeHint( const QStyleOptionViewItem & option, const QModelIndex & index ) const; | ||
| bool editorEvent( QEvent * event, QAbstractItemModel * model, const QStyleOptionViewItem & option, const QModelIndex & index ); | ||
| }; | ||
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| /** \ingroup gui | ||
| * \class QgsColorSchemeModel | ||
| * A model for colors in a color scheme | ||
| * @see QgsColorSchemeList | ||
| * @note introduced in QGIS 2.5 | ||
| */ | ||
| class QgsColorSchemeModel: QAbstractItemModel | ||
| { | ||
| %TypeHeaderCode | ||
| #include <qgscolorschemelist.h> | ||
| %End | ||
|
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| public: | ||
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| /**Constructor | ||
| * @param scheme color scheme for list | ||
| * @param context context string for color scheme | ||
| * @param baseColor base color for color scheme | ||
| * @param parent parent object | ||
| */ | ||
| explicit QgsColorSchemeModel( QgsColorScheme* scheme, const QString context = QString(), const QColor baseColor = QColor(), QObject* parent /TransferThis/ = 0 ); | ||
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| ~QgsColorSchemeModel(); | ||
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| //reimplemented QAbstractItemModel methods | ||
| QModelIndex index( int row, int column, const QModelIndex &parent = QModelIndex() ) const; | ||
| QModelIndex parent( const QModelIndex &index ) const; | ||
| int rowCount( const QModelIndex &parent = QModelIndex() ) const; | ||
| int columnCount( const QModelIndex &parent = QModelIndex() ) const; | ||
| QVariant data( const QModelIndex &index, int role = Qt::DisplayRole ) const; | ||
| Qt::ItemFlags flags( const QModelIndex & index ) const; | ||
| bool setData( const QModelIndex & index, const QVariant & value, int role = Qt::EditRole ); | ||
| QVariant headerData( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const; | ||
| Qt::DropActions supportedDropActions() const; | ||
| QStringList mimeTypes() const; | ||
| bool removeRows( int row, int count, const QModelIndex & parent = QModelIndex() ); | ||
| bool insertRows( int row, int count, const QModelIndex &parent = QModelIndex() ); | ||
| QMimeData *mimeData( const QModelIndexList &indexes ) const; | ||
| bool dropMimeData( const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent ); | ||
|
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| /**Returns a list of colors shown in the widget | ||
| * @returns colors shown in the widget | ||
| */ | ||
| QgsNamedColorList colors() const; | ||
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| /**Sets the color scheme to show in the widget | ||
| * @param scheme color scheme | ||
| * @param context context for color scheme | ||
| * @param baseColor base color for color scheme | ||
| */ | ||
| void setScheme( QgsColorScheme* scheme, const QString context = QString(), const QColor baseColor = QColor() ); | ||
|
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| /**Get the current color scheme context for the model | ||
| * @returns context string which is passed to scheme for color generation | ||
| * @see baseColor | ||
| */ | ||
| QString context() const; | ||
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| /**Get the base color for the color scheme used by the model | ||
| * @returns base color which is passed to scheme for color generation | ||
| * @see context | ||
| */ | ||
| QColor baseColor() const; | ||
|
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| /**Add a color to the list | ||
| * @param color color to add | ||
| * @param label label for color | ||
| */ | ||
| void addColor( const QColor color, const QString label = QString() ); | ||
|
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| }; | ||
|
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| /** \ingroup gui | ||
| * \class QgsColorSchemeList | ||
| * An editable list of color swatches, taken from an associated QgsColorScheme. | ||
| * @see QgsColorSchemeList | ||
| * @note introduced in QGIS 2.5 | ||
| */ | ||
| class QgsColorSchemeList: QTreeView | ||
| { | ||
| %TypeHeaderCode | ||
| #include <qgscolorschemelist.h> | ||
| %End | ||
|
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| public: | ||
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| /**Construct a new color swatch grid. | ||
| * @param parent parent widget | ||
| * @param scheme QgsColorScheme for colors to show in the list | ||
| * @param context context string provided to color scheme | ||
| * @param baseColor base color for color scheme | ||
| */ | ||
| QgsColorSchemeList( QWidget *parent /TransferThis/ = 0, QgsColorScheme* scheme = 0, const QString context = QString(), const QColor baseColor = QColor() ); | ||
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| virtual ~QgsColorSchemeList(); | ||
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| /**Sets the color scheme to show in the list | ||
| * @param scheme QgsColorScheme for colors to show in the list | ||
| * @param context context string provided to color scheme | ||
| * @param baseColor base color for color scheme | ||
| */ | ||
| void setScheme( QgsColorScheme* scheme, const QString context = QString(), const QColor baseColor = QColor() ); | ||
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| /**Saves the current colors shown in the list back to a color scheme, if supported | ||
| * by the color scheme. | ||
| * @note this method is only effective if the color scheme is editable | ||
| */ | ||
| bool saveColorsToScheme(); | ||
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| /**Removes any selected colors from the list | ||
| */ | ||
| void removeSelection(); | ||
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| /**Adds a color to the list | ||
| * @param color color to add | ||
| * @param label optional label for color | ||
| */ | ||
| void addColor( const QColor color, const QString label = QString() ); | ||
|
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| }; | ||
|
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