Changeset 561 for trunk/src/gui/itemviews/qlistview_p.h

Timestamp:

Feb 11, 2010, 11:19:06 PM (16 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/itemviews/qlistview_p.h (modified) (17 diffs)

trunk/src/gui/itemviews/qlistview_p.h

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information ([email protected])
+** All rights reserved.
+** Contact: Nokia Corporation ([email protected])
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -21 +22 @@
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** If you 
+** @nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -68 +68 @@
 {
     friend class QListViewPrivate;
-    friend class QStaticListViewBase;
-    friend class QDynamicListViewBase;
+    friend class QViewBase;
+    friend class QViewBase;
 public:
     inline QListViewItem()
@@ -85 +85 @@
         { return !(*this == other); }
     inline bool isValid() const
-        { return (x > -1) && (y > -1) && (w > 0) && (h > 0) && (indexHint > -1); }
+        { return ) && (indexHint > -1); }
     inline void invalidate()
         { x = -1; y = -1; w = 0; h = 0; }
@@ -121 +121 @@
 {
 public:
-    inline QCommonListViewBase(QListView *q, QListViewPrivate *d) : dd(d), qq(q) {}
-
+    inline QCommonListViewBase(QListView *q, QListViewPrivate *d) : dd(d), qq(q), batchStartRow(0), batchSavedDeltaSeg(0) {}
+    virtual ~QCommonListViewBase() {}
+
+    //common interface
+    virtual int itemIndex(const QListViewItem &item) const = 0;
+    virtual QListViewItem indexToListViewItem(const QModelIndex &index) const = 0;
+    virtual bool doBatchedItemLayout(const QListViewLayoutInfo &info, int max) = 0;
+    virtual void clear() = 0;
+    virtual void setRowCount(int) = 0;
+    virtual QVector<QModelIndex> intersectingSet(const QRect &area) const = 0;
+    virtual void dataChanged(const QModelIndex &, const QModelIndex &) = 0;
+
+    virtual int horizontalScrollToValue(int index, QListView::ScrollHint hint,
+        bool leftOf, bool rightOf, const QRect &area, const QRect &rect) const;
+    virtual int verticalScrollToValue(int index, QListView::ScrollHint hint,
+        bool above, bool below, const QRect &area, const QRect &rect) const;
+    virtual void scrollContentsBy(int dx, int dy, bool scrollElasticBand);
+    virtual QRect mapToViewport(const QRect &rect) const {return rect;}
+    virtual int horizontalOffset() const;
+    virtual int verticalOffset() const { return verticalScrollBar()->value(); }
+    virtual void updateHorizontalScrollBar(const QSize &step);
+    virtual void updateVerticalScrollBar(const QSize &step);
+    virtual void appendHiddenRow(int row);
+    virtual void removeHiddenRow(int row);
+    virtual void setPositionForIndex(const QPoint &, const QModelIndex &) { }
+
+#ifndef QT_NO_DRAGANDDROP
+    virtual void paintDragDrop(QPainter *painter) = 0;
+    virtual bool filterDragMoveEvent(QDragMoveEvent *) { return false; }
+    virtual bool filterDragLeaveEvent(QDragLeaveEvent *) { return false; }
+    virtual bool filterDropEvent(QDropEvent *) { return false; }
+    virtual bool filterStartDrag(Qt::DropActions) { return false; }
+#endif
+
+
+    //other inline members
     inline int spacing() const;
     inline bool isWrapping() const;
@@ -134 +168 @@
     inline int column() const;
 
-    inline int verticalScrollBarValue() const;
-    inline int horizontalScrollBarValue() const;
+    inline () const;
+    inline () const;
     inline QListView::ScrollMode verticalScrollMode() const;
     inline QListView::ScrollMode horizontalScrollMode() const;
@@ -154 +188 @@
     inline int hiddenCount() const;
 
-    inline void clearIntersections() const;
-    inline void appendToIntersections(const QModelIndex &idx) const;
-
     inline bool isRightToLeft() const;
 
     QListViewPrivate *dd;
     QListView *qq;
-};
-
-// ### rename to QListModeViewBase
-class QStaticListViewBase : public QCommonListViewBase
-{
-    friend class QListViewPrivate;
+    QSize contentsSize;
+    int batchStartRow;
+    int batchSavedDeltaSeg;
+};
+
+class QListModeViewBase : public QCommonListViewBase
+{
 public:
-    QStaticListViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d),
-        batchStartRow(0), batchSavedDeltaSeg(0), batchSavedPosition(0) {}
+    QListModeViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d) {}
 
     QVector<int> flowPositions;
@@ -175 +206 @@
     QVector<int> segmentStartRows;
     QVector<int> segmentExtents;
-
-    QSize contentsSize;
+    QVector<int> scrollValueMap;
 
     // used when laying out in batches
-    int batchStartRow;
-    int batchSavedDeltaSeg;
     int batchSavedPosition;
 
+
+
+
     bool doBatchedItemLayout(const QListViewLayoutInfo &info, int max);
-
+    void clear();
+    void setRowCount(int rowCount) { flowPositions.resize(rowCount); }
+    QVector<QModelIndex> intersectingSet(const QRect &area) const;
+    void dataChanged(const QModelIndex &, const QModelIndex &);
+
+    int horizontalScrollToValue(int index, QListView::ScrollHint hint,
+        bool leftOf, bool rightOf,const QRect &area, const QRect &rect) const;
+    int verticalScrollToValue(int index, QListView::ScrollHint hint,
+        bool above, bool below, const QRect &area, const QRect &rect) const;
+    void scrollContentsBy(int dx, int dy, bool scrollElasticBand);
+    QRect mapToViewport(const QRect &rect) const;
+    int horizontalOffset() const;
+    int verticalOffset() const;
+    void updateHorizontalScrollBar(const QSize &step);
+    void updateVerticalScrollBar(const QSize &step);
+
+#ifndef QT_NO_DRAGANDDROP
+    void paintDragDrop(QPainter *painter);
+
+    // The next two methods are to be used on LefToRight flow only.
+    // WARNING: Plenty of duplicated code from QAbstractItemView{,Private}.
+    QAbstractItemView::DropIndicatorPosition position(const QPoint &pos, const QRect &rect, const QModelIndex &idx) const;
+    void dragMoveEvent(QDragMoveEvent *e);
+#endif
+
+private:
     QPoint initStaticLayout(const QListViewLayoutInfo &info);
     void doStaticLayout(const QListViewLayoutInfo &info);
-    void intersectingStaticSet(const QRect &area) const;
-
-    int itemIndex(const QListViewItem &item) const;
-
-    int perItemScrollingPageSteps(int length, int bounds, bool wrap) const;
-
     int perItemScrollToValue(int index, int value, int height,
                              QAbstractItemView::ScrollHint hint,
                              Qt::Orientation orientation, bool wrap, int extent) const;
-
-    QRect mapToViewport(const QRect &rect) const;
-
-    QListViewItem indexToListViewItem(const QModelIndex &index) const;
-
-    void scrollContentsBy(int &dx, int &dy);
-
-    int verticalPerItemValue(int itemIndex, int verticalValue, int areaHeight,
-                       bool above, bool below, bool wrap, QListView::ScrollHint hint, int itemHeight) const;
-    int horizontalPerItemValue(int itemIndex, int horizontalValue, int areaWidth,
-                       bool leftOf, bool rightOf, bool wrap, QListView::ScrollHint hint, int itemWidth) const;
-
-    void clear();
-};
-
-// ### rename to QIconModeViewBase
-class QDynamicListViewBase : public QCommonListViewBase
-{
-    friend class QListViewPrivate;
+    int perItemScrollingPageSteps(int length, int bounds, bool wrap) const;
+};
+
+class QIconModeViewBase : public QCommonListViewBase
+{
 public:
-    QDynamicListViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d),
-        batchStartRow(0), batchSavedDeltaSeg(0) {}
+    QIconModeViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d), interSectingVector(0) {}
 
     QBspTree tree;
@@ -223 +258 @@
     QBitArray moved;
 
-    QSize contentsSize;
-
     QVector<QModelIndex> draggedItems; // indices to the tree.itemVector
     mutable QPoint draggedItemsPos;
 
     // used when laying out in batches
-    int batchStartRow;
-    int batchSavedDeltaSeg;
-
+    QVector<QModelIndex> *interSectingVector; //used from within intersectingSet
+
+    //reimplementations
+    int itemIndex(const QListViewItem &item) const;
+    QListViewItem indexToListViewItem(const QModelIndex &index) const;
+    bool doBatchedItemLayout(const QListViewLayoutInfo &info, int max);
+    void clear();
+    void setRowCount(int rowCount);
+    QVector<QModelIndex> intersectingSet(const QRect &area) const;
+
+    void scrollContentsBy(int dx, int dy, bool scrollElasticBand);
     void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
-    bool doBatchedItemLayout(const QListViewLayoutInfo &info, int max);
-
+    void appendHiddenRow(int row);
+    void removeHiddenRow(int row);
+    void setPositionForIndex(const QPoint &position, const QModelIndex &index);
+
+#ifndef QT_NO_DRAGANDDROP
+    void paintDragDrop(QPainter *painter);
+    bool filterDragMoveEvent(QDragMoveEvent *);
+    bool filterDragLeaveEvent(QDragLeaveEvent *);
+    bool filterDropEvent(QDropEvent *e);
+    bool filterStartDrag(Qt::DropActions);
+#endif
+
+private:
     void initBspTree(const QSize &contents);
     QPoint initDynamicLayout(const QListViewLayoutInfo &info);
     void doDynamicLayout(const QListViewLayoutInfo &info);
-    void intersectingDynamicSet(const QRect &area) const;
-
     static void addLeaf(QVector<int> &leaf, const QRect &area,
                         uint visited, QBspTree::Data data);
-
-    void insertItem(int index);
-    void removeItem(int index);
+    QRect itemsRect(const QVector<QModelIndex> &indexes) const;
+    QRect draggedItemsRect() const;
+    QPoint snapToGrid(const QPoint &pos) const;
+    void updateContentsSize();
+    QPoint draggedItemsDelta() const;
+    void drawItems(QPainter *painter, const QVector<QModelIndex> &indexes) const;
     void moveItem(int index, const QPoint &dest);
 
-    int itemIndex(const QListViewItem &item) const;
-
-    void createItems(int to);
-    void drawItems(QPainter *painter, const QVector<QModelIndex> &indexes) const;
-    QRect itemsRect(const QVector<QModelIndex> &indexes) const;
-
-    QPoint draggedItemsDelta() const;
-    QRect draggedItemsRect() const;
-
-    QPoint snapToGrid(const QPoint &pos) const;
-
-    void scrollElasticBandBy(int dx, int dy);
-
-    QListViewItem indexToListViewItem(const QModelIndex &index) const;
-
-    void clear();
-    void updateContentsSize();
 };
 
@@ -278 +314 @@
     bool doItemsLayout(int num);
 
-    inline void intersectingSet(const QRect &area, bool doLayout = true) const {
+    inline  intersectingSet(const QRect &area, bool doLayout = true) const {
         if (doLayout) executePostedLayout();
         QRect a = (q_func()->isRightToLeft() ? flipX(area.normalized()) : area.normalized());
-        if (viewMode == QListView::ListMode) staticListView->intersectingStaticSet(a);
-        else dynamicListView->intersectingDynamicSet(a);
+        return commonListView->intersectingSet(a);
     }
 
-    // ### FIXME:
-    inline void resetBatchStartRow()
-        { if (viewMode == QListView::ListMode) staticListView->batchStartRow = 0;
-              else dynamicListView->batchStartRow = 0; }
-    inline int batchStartRow() const
-        { return (viewMode == QListView::ListMode
-          ? staticListView->batchStartRow : dynamicListView->batchStartRow); }
-    inline QSize contentsSize() const
-        { return (viewMode == QListView::ListMode
-          ? staticListView->contentsSize : dynamicListView->contentsSize); }
-    inline void setContentsSize(int w, int h)
-        { if (viewMode == QListView::ListMode) staticListView->contentsSize = QSize(w, h);
-          else dynamicListView->contentsSize = QSize(w, h); }
+    inline void resetBatchStartRow() { commonListView->batchStartRow = 0; }
+    inline int batchStartRow() const { return commonListView->batchStartRow; }
+    inline QSize contentsSize() const { return commonListView->contentsSize; }
+    inline void setContentsSize(int w, int h) { commonListView->contentsSize = QSize(w, h); }
 
     inline int flipX(int x) const
@@ -308 +334 @@
         { if (q_func()->isRightToLeft()) return flipX(item.rect()); return item.rect(); }
 
-    int itemIndex(const QListViewItem &item) const;
     QListViewItem indexToListViewItem(const QModelIndex &index) const;
     inline QModelIndex listViewItemToIndex(const QListViewItem &item) const
-        { return model->index(itemIndex(item), column, root); }
-
-    QRect mapToViewport(const QRect &rect, bool greedy = false) const;
+        { return model->index(commonListView->itemIndex(item), column, root); }
+
+    QRect rectForIndex(const QModelIndex &index) const
+    {
+        if (!isIndexValid(index) || index.parent() != root || index.column() != column || isHidden(index.row()))
+            return QRect();
+        executePostedLayout();
+        return viewItemRect(indexToListViewItem(index));
+    }
+
+    void viewUpdateGeometries() { q_func()->updateGeometries(); }
+
+
+    QRect mapToViewport(const QRect &rect, bool extend = true) const;
 
     QModelIndex closestIndex(const QRect &target, const QVector<QModelIndex> &candidates) const;
@@ -326 +362 @@
     QItemSelection selection(const QRect &rect) const;
     void selectAll(QItemSelectionModel::SelectionFlags command);
+
+
+
+
 
     inline void setGridSize(const QSize &size) { grid = size; }
@@ -352 +392 @@
     void scrollElasticBandBy(int dx, int dy);
 
-    // ### FIXME: we only need one at a time
-    QDynamicListViewBase *dynamicListView;
-    QStaticListViewBase *staticListView;
+    QItemViewPaintPairs draggablePaintPairs(const QModelIndexList &indexes, QRect *r) const;
+
+    void emitIndexesMoved(const QModelIndexList &indexes) { emit q_func()->indexesMoved(indexes); }
+
+
+    QCommonListViewBase *commonListView;
 
     // ### FIXME: see if we can move the members into the dynamic/static classes
@@ -384 +427 @@
     QRect layoutBounds;
 
-    // used for intersecting set
-    mutable QVector<QModelIndex> intersectVector;
-
     // timers
     QBasicTimer batchLayoutTimer;
@@ -415 +455 @@
 inline int QCommonListViewBase::column() const { return dd->column; }
 
-inline int QCommonListViewBase::verticalScrollBarValue() const { return qq->verticalScrollBar()->value(); }
-inline int QCommonListViewBase::horizontalScrollBarValue() const { return qq->horizontalScrollBar()->value(); }
+inline (); }
+inline (); }
 inline QListView::ScrollMode QCommonListViewBase::verticalScrollMode() const { return qq->verticalScrollMode(); }
 inline QListView::ScrollMode QCommonListViewBase::horizontalScrollMode() const { return qq->horizontalScrollMode(); }
@@ -439 +479 @@
 inline int QCommonListViewBase::hiddenCount() const { return dd->hiddenRows.count(); }
 
-inline void QCommonListViewBase::clearIntersections() const { dd->intersectVector.clear(); }
-inline void QCommonListViewBase::appendToIntersections(const QModelIndex &idx) const { dd->intersectVector.append(idx); }
-
 inline bool QCommonListViewBase::isRightToLeft() const { return qq->isRightToLeft(); }