1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QLISTVIEW_H 41 #define QLISTVIEW_H 42 43 #include <QtWidgets/qtwidgetsglobal.h> 44 #include <QtWidgets/qabstractitemview.h> 45 46 QT_REQUIRE_CONFIG(listview); 47 48 QT_BEGIN_NAMESPACE 49 50 class QListViewPrivate; 51 52 class Q_WIDGETS_EXPORT QListView : public QAbstractItemView 53 { 54 Q_OBJECT 55 Q_PROPERTY(Movement movement READ movement WRITE setMovement) 56 Q_PROPERTY(Flow flow READ flow WRITE setFlow) 57 Q_PROPERTY(bool isWrapping READ isWrapping WRITE setWrapping) 58 Q_PROPERTY(ResizeMode resizeMode READ resizeMode WRITE setResizeMode) 59 Q_PROPERTY(LayoutMode layoutMode READ layoutMode WRITE setLayoutMode) 60 Q_PROPERTY(int spacing READ spacing WRITE setSpacing) 61 Q_PROPERTY(QSize gridSize READ gridSize WRITE setGridSize) 62 Q_PROPERTY(ViewMode viewMode READ viewMode WRITE setViewMode) 63 Q_PROPERTY(int modelColumn READ modelColumn WRITE setModelColumn) 64 Q_PROPERTY(bool uniformItemSizes READ uniformItemSizes WRITE setUniformItemSizes) 65 Q_PROPERTY(int batchSize READ batchSize WRITE setBatchSize) 66 Q_PROPERTY(bool wordWrap READ wordWrap WRITE setWordWrap) 67 Q_PROPERTY(bool selectionRectVisible READ isSelectionRectVisible WRITE setSelectionRectVisible) 68 Q_PROPERTY(Qt::Alignment itemAlignment READ itemAlignment WRITE setItemAlignment) 69 70 public: 71 enum Movement { Static, Free, Snap }; 72 Q_ENUM(Movement) 73 enum Flow { LeftToRight, TopToBottom }; 74 Q_ENUM(Flow) 75 enum ResizeMode { Fixed, Adjust }; 76 Q_ENUM(ResizeMode) 77 enum LayoutMode { SinglePass, Batched }; 78 Q_ENUM(LayoutMode) 79 enum ViewMode { ListMode, IconMode }; 80 Q_ENUM(ViewMode) 81 82 explicit QListView(QWidget *parent = nullptr); 83 ~QListView(); 84 85 void setMovement(Movement movement); 86 Movement movement() const; 87 88 void setFlow(Flow flow); 89 Flow flow() const; 90 91 void setWrapping(bool enable); 92 bool isWrapping() const; 93 94 void setResizeMode(ResizeMode mode); 95 ResizeMode resizeMode() const; 96 97 void setLayoutMode(LayoutMode mode); 98 LayoutMode layoutMode() const; 99 100 void setSpacing(int space); 101 int spacing() const; 102 103 void setBatchSize(int batchSize); 104 int batchSize() const; 105 106 void setGridSize(const QSize &size); 107 QSize gridSize() const; 108 109 void setViewMode(ViewMode mode); 110 ViewMode viewMode() const; 111 112 void clearPropertyFlags(); 113 114 bool isRowHidden(int row) const; 115 void setRowHidden(int row, bool hide); 116 117 void setModelColumn(int column); 118 int modelColumn() const; 119 120 void setUniformItemSizes(bool enable); 121 bool uniformItemSizes() const; 122 123 void setWordWrap(bool on); 124 bool wordWrap() const; 125 126 void setSelectionRectVisible(bool show); 127 bool isSelectionRectVisible() const; 128 129 void setItemAlignment(Qt::Alignment alignment); 130 Qt::Alignment itemAlignment() const; 131 132 QRect visualRect(const QModelIndex &index) const override; 133 void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override; 134 QModelIndex indexAt(const QPoint &p) const override; 135 136 void doItemsLayout() override; 137 void reset() override; 138 void setRootIndex(const QModelIndex &index) override; 139 140 Q_SIGNALS: 141 void indexesMoved(const QModelIndexList &indexes); 142 143 protected: 144 QListView(QListViewPrivate &, QWidget *parent = nullptr); 145 146 bool event(QEvent *e) override; 147 148 void scrollContentsBy(int dx, int dy) override; 149 150 void resizeContents(int width, int height); 151 QSize contentsSize() const; 152 153 void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles = QVector<int>()) override; 154 void rowsInserted(const QModelIndex &parent, int start, int end) override; 155 void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) override; 156 157 void mouseMoveEvent(QMouseEvent *e) override; 158 void mouseReleaseEvent(QMouseEvent *e) override; 159 #if QT_CONFIG(wheelevent) 160 void wheelEvent(QWheelEvent *e) override; 161 #endif 162 163 void timerEvent(QTimerEvent *e) override; 164 void resizeEvent(QResizeEvent *e) override; 165 #if QT_CONFIG(draganddrop) 166 void dragMoveEvent(QDragMoveEvent *e) override; 167 void dragLeaveEvent(QDragLeaveEvent *e) override; 168 void dropEvent(QDropEvent *e) override; 169 void startDrag(Qt::DropActions supportedActions) override; 170 #endif // QT_CONFIG(draganddrop) 171 172 QStyleOptionViewItem viewOptions() const override; 173 void paintEvent(QPaintEvent *e) override; 174 175 int horizontalOffset() const override; 176 int verticalOffset() const override; 177 QModelIndex moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers) override; 178 QRect rectForIndex(const QModelIndex &index) const; 179 void setPositionForIndex(const QPoint &position, const QModelIndex &index); 180 181 void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command) override; 182 QRegion visualRegionForSelection(const QItemSelection &selection) const override; 183 QModelIndexList selectedIndexes() const override; 184 185 void updateGeometries() override; 186 187 bool isIndexHidden(const QModelIndex &index) const override; 188 189 void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected) override; 190 void currentChanged(const QModelIndex ¤t, const QModelIndex &previous) override; 191 192 QSize viewportSizeHint() const override; 193 194 private: 195 int visualIndex(const QModelIndex &index) const; 196 197 Q_DECLARE_PRIVATE(QListView) 198 Q_DISABLE_COPY(QListView) 199 }; 200 201 QT_END_NAMESPACE 202 203 #endif // QLISTVIEW_H 204