X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/dbc5fd7a491f95ca4084a113d0f902ea975478fd..81065795b78e06ec679ec0589fba7082e777ef2a:/src/kitemviews/kitemlistwidget.h diff --git a/src/kitemviews/kitemlistwidget.h b/src/kitemviews/kitemlistwidget.h index 84bd15fa5..433048aa0 100644 --- a/src/kitemviews/kitemlistwidget.h +++ b/src/kitemviews/kitemlistwidget.h @@ -23,17 +23,38 @@ #ifndef KITEMLISTWIDGET_H #define KITEMLISTWIDGET_H -#include - -#include +#include "dolphin_export.h" +#include "kitemviews/kitemliststyleoption.h" #include #include #include class KItemListSelectionToggle; +class KItemListView; class QPropertyAnimation; +/** + * @brief Provides information for creating an instance of KItemListWidget. + * + * KItemListView only creates KItemListWidget instances for the visible + * area. For calculating the required size of all items the expected + * size for the invisible items must be accessible. KItemListWidgetInformant + * provides this information. + */ +class DOLPHIN_EXPORT KItemListWidgetInformant +{ +public: + KItemListWidgetInformant(); + virtual ~KItemListWidgetInformant(); + + virtual void calculateItemSizeHints(QVector& logicalHeightHints, qreal& logicalWidthHint, const KItemListView* view) const = 0; + + virtual qreal preferredRoleColumnWidth(const QByteArray& role, + int index, + const KItemListView* view) const = 0; +}; + /** * @brief Widget that shows a visible item from the model. * @@ -41,13 +62,13 @@ class QPropertyAnimation; * All properties are set by KItemListView, for each property there is a corresponding * virtual protected method that allows to react on property changes. */ -class LIBDOLPHINPRIVATE_EXPORT KItemListWidget : public QGraphicsWidget +class DOLPHIN_EXPORT KItemListWidget : public QGraphicsWidget { Q_OBJECT public: - KItemListWidget(QGraphicsItem* parent); - virtual ~KItemListWidget(); + KItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent); + ~KItemListWidget() override; void setIndex(int index); int index() const; @@ -60,13 +81,17 @@ public: * to show the data of the custom model provided by KItemListWidget::data(). * @reimp */ - virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0); + void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = nullptr) override; void setVisibleRoles(const QList& roles); QList visibleRoles() const; - void setVisibleRolesSizes(const QHash rolesSizes); - QHash visibleRolesSizes() const; + /** + * Sets the width of a role that should be used if the alignment of the content + * should be done in columns. + */ + void setColumnWidth(const QByteArray& role, qreal width); + qreal columnWidth(const QByteArray& role) const; void setStyleOption(const KItemListStyleOption& option); const KItemListStyleOption& styleOption() const; @@ -82,6 +107,8 @@ public: void setHovered(bool hovered); bool isHovered() const; + void setHoverPosition(const QPointF& pos); + void setAlternateBackground(bool enable); bool alternateBackground() const; @@ -98,13 +125,23 @@ public: void setSiblingsInformation(const QBitArray& siblings); QBitArray siblingsInformation() const; + /** + * Allows the user to edit the role \a role. The signals + * roleEditingCanceled() or roleEditingFinished() will be + * emitted after editing. An ongoing editing gets canceled if + * the role is empty. Derived classes must implement + * editedRoleChanged(). + */ + void setEditedRole(const QByteArray& role); + QByteArray editedRole() const; + /** * @return True if \a point is inside KItemListWidget::hoverRect(), * KItemListWidget::textRect(), KItemListWidget::selectionToggleRect() * or KItemListWidget::expansionToggleRect(). * @reimp */ - virtual bool contains(const QPointF& point) const; + bool contains(const QPointF& point) const override; /** * @return Rectangle for the area that shows the icon. @@ -116,6 +153,20 @@ public: */ virtual QRectF textRect() const = 0; + /** + * @return Focus rectangle for indicating the current item. Per default + * textRect() will be returned. Overwrite this method if textRect() + * provides a larger rectangle than the actual text (e.g. to + * be aligned with the iconRect()). The textFocusRect() may not be + * outside the boundaries of textRect(). + */ + virtual QRectF textFocusRect() const; + + /** + * @return Rectangle around which a selection box should be drawn if the item is selected. + */ + virtual QRectF selectionRect() const = 0; + /** * @return Rectangle for the selection-toggle that is used to select or deselect an item. * Per default an empty rectangle is returned which means that no selection-toggle @@ -130,17 +181,28 @@ public: */ virtual QRectF expansionToggleRect() const; + /** + * @return Pixmap that is used when dragging an item. Per default the current state of the + * widget is returned as pixmap. + */ + virtual QPixmap createDragPixmap(const QStyleOptionGraphicsItem* option, QWidget* widget = nullptr); + +signals: + void roleEditingCanceled(int index, const QByteArray& role, const QVariant& value); + void roleEditingFinished(int index, const QByteArray& role, const QVariant& value); + protected: virtual void dataChanged(const QHash& current, const QSet& roles = QSet()); virtual void visibleRolesChanged(const QList& current, const QList& previous); - virtual void visibleRolesSizesChanged(const QHash& current, const QHash& previous); + virtual void columnWidthChanged(const QByteArray& role, qreal current, qreal previous); virtual void styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous); virtual void currentChanged(bool current); virtual void selectedChanged(bool selected); virtual void hoveredChanged(bool hovered); virtual void alternateBackgroundChanged(bool enabled); virtual void siblingsInformationChanged(const QBitArray& current, const QBitArray& previous); - virtual void resizeEvent(QGraphicsSceneResizeEvent* event); + virtual void editedRoleChanged(const QByteArray& current, const QByteArray& previous); + void resizeEvent(QGraphicsSceneResizeEvent* event) override; /** * @return The current opacity of the hover-animation. When implementing a custom painting-code for a hover-state @@ -148,6 +210,8 @@ protected: */ qreal hoverOpacity() const; + const KItemListWidgetInformant* informant() const; + private slots: void slotHoverAnimationFinished(); @@ -160,6 +224,7 @@ private: private: Q_PROPERTY(qreal hoverOpacity READ hoverOpacity WRITE setHoverOpacity) + KItemListWidgetInformant* m_informant; int m_index; bool m_selected; bool m_current; @@ -168,7 +233,7 @@ private: bool m_enabledSelectionToggle; QHash m_data; QList m_visibleRoles; - QHash m_visibleRolesSizes; + QHash m_columnWidths; KItemListStyleOption m_styleOption; QBitArray m_siblingsInfo; @@ -177,7 +242,15 @@ private: QPropertyAnimation* m_hoverAnimation; KItemListSelectionToggle* m_selectionToggle; + + QByteArray m_editedRole; }; + +inline const KItemListWidgetInformant* KItemListWidget::informant() const +{ + return m_informant; +} + #endif