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122 lines
3.4 KiB
C++
122 lines
3.4 KiB
C++
#ifndef VTREEWIDGET_H
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#define VTREEWIDGET_H
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#include <QTreeWidget>
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#include "vsimplesearchinput.h"
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class QDropEvent;
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class VStyledItemDelegate;
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class QTimer;
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class QGraphicsOpacityEffect;
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// QTreeWidget won't emit the rowsMoved() signal after drag-and-drop.
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// VTreeWidget will emit rowsMoved() signal.
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class VTreeWidget : public QTreeWidget, public ISimpleSearch
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{
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Q_OBJECT
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public:
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explicit VTreeWidget(QWidget *p_parent = nullptr);
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// Clear tree widget as well as other data.
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void clearAll();
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void setSimpleSearchMatchFlags(Qt::MatchFlags p_flags);
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Qt::MatchFlags getSimpleSearchMatchFlags() const;
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// Implement ISimpleSearch.
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virtual QList<void *> searchItems(const QString &p_text,
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Qt::MatchFlags p_flags) const Q_DECL_OVERRIDE;
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virtual void highlightHitItems(const QList<void *> &p_items) Q_DECL_OVERRIDE;
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virtual void clearItemsHighlight() Q_DECL_OVERRIDE;
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virtual void selectHitItem(void *p_item) Q_DECL_OVERRIDE;
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virtual int totalNumberOfItems() Q_DECL_OVERRIDE;
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virtual void selectNextItem(bool p_forward) Q_DECL_OVERRIDE;
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virtual void selectParentItem();
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void setFitContent(bool p_enabled);
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QTreeWidgetItem *getItemFromIndex(const QModelIndex &p_index) const;
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// Next visible item.
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static QTreeWidgetItem *nextItem(const QTreeWidget* p_tree,
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QTreeWidgetItem *p_item,
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bool p_forward);
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// Whether @p_tree is expanded.
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static bool isTreeExpanded(const QTreeWidget *p_tree);
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static void expandCollapseAll(QTreeWidget *p_tree);
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static const QTreeWidgetItem *topLevelTreeItem(const QTreeWidgetItem *p_item);
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static int childIndexOfTreeItem(const QTreeWidgetItem *p_item);
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protected:
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void keyPressEvent(QKeyEvent *p_event) Q_DECL_OVERRIDE;
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void resizeEvent(QResizeEvent *p_event) Q_DECL_OVERRIDE;
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void dropEvent(QDropEvent *p_event) Q_DECL_OVERRIDE;
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signals:
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// Rows [@p_first, @p_last] were moved to @p_row.
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void rowsMoved(int p_first, int p_last, int p_row);
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void itemExpandedOrCollapsed();
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private slots:
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void handleSearchModeTriggered(bool p_inSearchMode, bool p_focus);
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void handleSearchInputTextChanged(const QString &p_text);
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private:
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// Show or hide search input.
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void setSearchInputVisible(bool p_visible);
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QGraphicsOpacityEffect *getSearchInputEffect() const;
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static QTreeWidgetItem *nextSibling(const QTreeWidget *p_widget,
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QTreeWidgetItem *p_item,
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bool p_forward);
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VSimpleSearchInput *m_searchInput;
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VStyledItemDelegate *m_delegate;
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QTimer *m_searchColdTimer;
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QTimer *m_expandTimer;
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bool m_fitContent;
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};
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inline void VTreeWidget::setSimpleSearchMatchFlags(Qt::MatchFlags p_flags)
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{
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m_searchInput->setMatchFlags(p_flags);
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}
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inline Qt::MatchFlags VTreeWidget::getSimpleSearchMatchFlags() const
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{
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return m_searchInput->getMatchFlags();
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}
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inline void VTreeWidget::setFitContent(bool p_enabled)
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{
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m_fitContent = p_enabled;
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setSizeAdjustPolicy(m_fitContent ? QAbstractScrollArea::AdjustToContents
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: QAbstractScrollArea::AdjustIgnored);
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}
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inline QTreeWidgetItem *VTreeWidget::getItemFromIndex(const QModelIndex &p_index) const
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{
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return itemFromIndex(p_index);
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}
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#endif // VTREEWIDGET_H
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