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Diffstat (limited to 'src/gui/itemviews/qabstractitemview_p.h')
| -rw-r--r-- | src/gui/itemviews/qabstractitemview_p.h | 457 |
1 files changed, 0 insertions, 457 deletions
diff --git a/src/gui/itemviews/qabstractitemview_p.h b/src/gui/itemviews/qabstractitemview_p.h deleted file mode 100644 index 6041e5e177..0000000000 --- a/src/gui/itemviews/qabstractitemview_p.h +++ /dev/null @@ -1,457 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QABSTRACTITEMVIEW_P_H -#define QABSTRACTITEMVIEW_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include "private/qabstractscrollarea_p.h" -#include "private/qabstractitemmodel_p.h" -#include "QtGui/qapplication.h" -#include "QtGui/qevent.h" -#include "QtGui/qmime.h" -#include "QtGui/qpainter.h" -#include "QtCore/qpair.h" -#include "QtGui/qregion.h" -#include "QtCore/qdebug.h" -#include "QtGui/qpainter.h" -#include "QtCore/qbasictimer.h" -#include "QtCore/qelapsedtimer.h" - -#ifndef QT_NO_ITEMVIEWS - -QT_BEGIN_NAMESPACE - -struct QEditorInfo { - QEditorInfo(QWidget *e, bool s): widget(QWeakPointer<QWidget>(e)), isStatic(s) {} - QEditorInfo(): isStatic(false) {} - - QWeakPointer<QWidget> widget; - bool isStatic; -}; - -// Fast associativity between Persistent editors and indices. -typedef QHash<QWidget *, QPersistentModelIndex> QEditorIndexHash; -typedef QHash<QPersistentModelIndex, QEditorInfo> QIndexEditorHash; - -typedef QPair<QRect, QModelIndex> QItemViewPaintPair; -typedef QList<QItemViewPaintPair> QItemViewPaintPairs; - -class QEmptyModel : public QAbstractItemModel -{ -public: - explicit QEmptyModel(QObject *parent = 0) : QAbstractItemModel(parent) {} - QModelIndex index(int, int, const QModelIndex &) const { return QModelIndex(); } - QModelIndex parent(const QModelIndex &) const { return QModelIndex(); } - int rowCount(const QModelIndex &) const { return 0; } - int columnCount(const QModelIndex &) const { return 0; } - bool hasChildren(const QModelIndex &) const { return false; } - QVariant data(const QModelIndex &, int) const { return QVariant(); } -}; - -class Q_AUTOTEST_EXPORT QAbstractItemViewPrivate : public QAbstractScrollAreaPrivate -{ - Q_DECLARE_PUBLIC(QAbstractItemView) - -public: - QAbstractItemViewPrivate(); - virtual ~QAbstractItemViewPrivate(); - - void init(); - - virtual void _q_rowsRemoved(const QModelIndex &parent, int start, int end); - virtual void _q_columnsAboutToBeRemoved(const QModelIndex &parent, int start, int end); - virtual void _q_columnsRemoved(const QModelIndex &parent, int start, int end); - virtual void _q_columnsInserted(const QModelIndex &parent, int start, int end); - virtual void _q_modelDestroyed(); - virtual void _q_layoutChanged(); - void _q_headerDataChanged() { doDelayedItemsLayout(); } - void _q_scrollerStateChanged(); - - void fetchMore(); - - bool shouldEdit(QAbstractItemView::EditTrigger trigger, const QModelIndex &index) const; - bool shouldForwardEvent(QAbstractItemView::EditTrigger trigger, const QEvent *event) const; - bool shouldAutoScroll(const QPoint &pos) const; - void doDelayedItemsLayout(int delay = 0); - void interruptDelayedItemsLayout() const; - - void startAutoScroll() - { // ### it would be nice to make this into a style hint one day - int scrollInterval = (verticalScrollMode == QAbstractItemView::ScrollPerItem) ? 150 : 50; - autoScrollTimer.start(scrollInterval, q_func()); - autoScrollCount = 0; - } - void stopAutoScroll() { autoScrollTimer.stop(); autoScrollCount = 0;} - -#ifndef QT_NO_DRAGANDDROP - virtual bool dropOn(QDropEvent *event, int *row, int *col, QModelIndex *index); -#endif - bool droppingOnItself(QDropEvent *event, const QModelIndex &index); - - QWidget *editor(const QModelIndex &index, const QStyleOptionViewItem &options); - bool sendDelegateEvent(const QModelIndex &index, QEvent *event) const; - bool openEditor(const QModelIndex &index, QEvent *event); - void updateEditorData(const QModelIndex &topLeft, const QModelIndex &bottomRight); - - QItemSelectionModel::SelectionFlags multiSelectionCommand(const QModelIndex &index, - const QEvent *event) const; - QItemSelectionModel::SelectionFlags extendedSelectionCommand(const QModelIndex &index, - const QEvent *event) const; - QItemSelectionModel::SelectionFlags contiguousSelectionCommand(const QModelIndex &index, - const QEvent *event) const; - virtual void selectAll(QItemSelectionModel::SelectionFlags command); - - void setHoverIndex(const QPersistentModelIndex &index); - - void checkMouseMove(const QPersistentModelIndex &index); - inline void checkMouseMove(const QPoint &pos) { checkMouseMove(q_func()->indexAt(pos)); } - - inline QItemSelectionModel::SelectionFlags selectionBehaviorFlags() const - { - switch (selectionBehavior) { - case QAbstractItemView::SelectRows: return QItemSelectionModel::Rows; - case QAbstractItemView::SelectColumns: return QItemSelectionModel::Columns; - case QAbstractItemView::SelectItems: default: return QItemSelectionModel::NoUpdate; - } - } - -#ifndef QT_NO_DRAGANDDROP - virtual QAbstractItemView::DropIndicatorPosition position(const QPoint &pos, const QRect &rect, const QModelIndex &idx) const; - - inline bool canDecode(QDropEvent *e) const { - QStringList modelTypes = model->mimeTypes(); - const QMimeData *mime = e->mimeData(); - for (int i = 0; i < modelTypes.count(); ++i) - if (mime->hasFormat(modelTypes.at(i)) - && (e->dropAction() & model->supportedDropActions())) - return true; - return false; - } - - inline void paintDropIndicator(QPainter *painter) - { - if (showDropIndicator && state == QAbstractItemView::DraggingState -#ifndef QT_NO_CURSOR - && viewport->cursor().shape() != Qt::ForbiddenCursor -#endif - ) { - QStyleOption opt; - opt.init(q_func()); - opt.rect = dropIndicatorRect; - q_func()->style()->drawPrimitive(QStyle::PE_IndicatorItemViewItemDrop, &opt, painter, q_func()); - } - } - -#endif - virtual QItemViewPaintPairs draggablePaintPairs(const QModelIndexList &indexes, QRect *r) const; - - inline void releaseEditor(QWidget *editor) const { - if (editor) { - QObject::disconnect(editor, SIGNAL(destroyed(QObject*)), - q_func(), SLOT(editorDestroyed(QObject*))); - editor->removeEventFilter(itemDelegate); - editor->hide(); - editor->deleteLater(); - } - } - - inline void executePostedLayout() const { - if (delayedPendingLayout && state != QAbstractItemView::CollapsingState) { - interruptDelayedItemsLayout(); - const_cast<QAbstractItemView*>(q_func())->doItemsLayout(); - } - } - - inline void setDirtyRegion(const QRegion &visualRegion) { - updateRegion += visualRegion; - if (!updateTimer.isActive()) - updateTimer.start(0, q_func()); - } - - inline void scrollDirtyRegion(int dx, int dy) { - scrollDelayOffset = QPoint(-dx, -dy); - updateDirtyRegion(); - scrollDelayOffset = QPoint(0, 0); - } - - inline void scrollContentsBy(int dx, int dy) { - scrollDirtyRegion(dx, dy); - viewport->scroll(dx, dy); - } - - void updateDirtyRegion() { - updateTimer.stop(); - viewport->update(updateRegion); - updateRegion = QRegion(); - } - - void clearOrRemove(); - void checkPersistentEditorFocus(); - - QPixmap renderToPixmap(const QModelIndexList &indexes, QRect *r) const; - - inline QPoint offset() const { - const Q_Q(QAbstractItemView); - return QPoint(q->isRightToLeft() ? -q->horizontalOffset() - : q->horizontalOffset(), q->verticalOffset()); - } - - const QEditorInfo &editorForIndex(const QModelIndex &index) const; - inline bool hasEditor(const QModelIndex &index) const { - return indexEditorHash.find(index) != indexEditorHash.constEnd(); - } - - QModelIndex indexForEditor(QWidget *editor) const; - void addEditor(const QModelIndex &index, QWidget *editor, bool isStatic); - void removeEditor(QWidget *editor); - - inline bool isAnimating() const { - return state == QAbstractItemView::AnimatingState; - } - - inline QAbstractItemDelegate *delegateForIndex(const QModelIndex &index) const { - QAbstractItemDelegate *del; - if ((del = rowDelegates.value(index.row(), 0))) return del; - if ((del = columnDelegates.value(index.column(), 0))) return del; - return itemDelegate; - } - - inline bool isIndexValid(const QModelIndex &index) const { - return (index.row() >= 0) && (index.column() >= 0) && (index.model() == model); - } - inline bool isIndexSelectable(const QModelIndex &index) const { - return (model->flags(index) & Qt::ItemIsSelectable); - } - inline bool isIndexEnabled(const QModelIndex &index) const { - return (model->flags(index) & Qt::ItemIsEnabled); - } - inline bool isIndexDropEnabled(const QModelIndex &index) const { - return (model->flags(index) & Qt::ItemIsDropEnabled); - } - inline bool isIndexDragEnabled(const QModelIndex &index) const { - return (model->flags(index) & Qt::ItemIsDragEnabled); - } - - virtual bool selectionAllowed(const QModelIndex &index) const { - // in some views we want to go ahead with selections, even if the index is invalid - return isIndexValid(index) && isIndexSelectable(index); - } - - // reimplemented from QAbstractScrollAreaPrivate - virtual QPoint contentsOffset() const { - Q_Q(const QAbstractItemView); - return QPoint(q->horizontalOffset(), q->verticalOffset()); - } - - /** - * For now, assume that we have few editors, if we need a more efficient implementation - * we should add a QMap<QAbstractItemDelegate*, int> member. - */ - int delegateRefCount(const QAbstractItemDelegate *delegate) const - { - int ref = 0; - if (itemDelegate == delegate) - ++ref; - - for (int maps = 0; maps < 2; ++maps) { - const QMap<int, QPointer<QAbstractItemDelegate> > *delegates = maps ? &columnDelegates : &rowDelegates; - for (QMap<int, QPointer<QAbstractItemDelegate> >::const_iterator it = delegates->begin(); - it != delegates->end(); ++it) { - if (it.value() == delegate) { - ++ref; - // optimization, we are only interested in the ref count values 0, 1 or >=2 - if (ref >= 2) { - return ref; - } - } - } - } - return ref; - } - - /** - * return true if the index is registered as a QPersistentModelIndex - */ - inline bool isPersistent(const QModelIndex &index) const - { - return static_cast<QAbstractItemModelPrivate *>(model->d_ptr.data())->persistent.indexes.contains(index); - } - - QModelIndexList selectedDraggableIndexes() const; - - QStyleOptionViewItemV4 viewOptionsV4() const; - - void doDelayedReset() - { - //we delay the reset of the timer because some views (QTableView) - //with headers can't handle the fact that the model has been destroyed - //all _q_modelDestroyed slots must have been called - if (!delayedReset.isActive()) - delayedReset.start(0, q_func()); - } - - QAbstractItemModel *model; - QPointer<QAbstractItemDelegate> itemDelegate; - QMap<int, QPointer<QAbstractItemDelegate> > rowDelegates; - QMap<int, QPointer<QAbstractItemDelegate> > columnDelegates; - QPointer<QItemSelectionModel> selectionModel; - QItemSelectionModel::SelectionFlag ctrlDragSelectionFlag; - bool noSelectionOnMousePress; - - QAbstractItemView::SelectionMode selectionMode; - QAbstractItemView::SelectionBehavior selectionBehavior; - - QEditorIndexHash editorIndexHash; - QIndexEditorHash indexEditorHash; - QSet<QWidget*> persistent; - QWidget *currentlyCommittingEditor; - - QPersistentModelIndex enteredIndex; - QPersistentModelIndex pressedIndex; - Qt::KeyboardModifiers pressedModifiers; - QPoint pressedPosition; - bool pressedAlreadySelected; - - //forces the next mouseMoveEvent to send the viewportEntered signal - //if the mouse is over the viewport and not over an item - bool viewportEnteredNeeded; - - QAbstractItemView::State state; - QAbstractItemView::State stateBeforeAnimation; - QAbstractItemView::EditTriggers editTriggers; - QAbstractItemView::EditTrigger lastTrigger; - - QPersistentModelIndex root; - QPersistentModelIndex hover; - - bool tabKeyNavigation; - -#ifndef QT_NO_DRAGANDDROP - bool showDropIndicator; - QRect dropIndicatorRect; - bool dragEnabled; - QAbstractItemView::DragDropMode dragDropMode; - bool overwrite; - QAbstractItemView::DropIndicatorPosition dropIndicatorPosition; - Qt::DropAction defaultDropAction; -#endif - -#ifdef QT_SOFTKEYS_ENABLED - QAction *doneSoftKey; -#endif - - QString keyboardInput; - QElapsedTimer keyboardInputTime; - - bool autoScroll; - QBasicTimer autoScrollTimer; - int autoScrollMargin; - int autoScrollCount; - bool shouldScrollToCurrentOnShow; //used to know if we should scroll to current on show event - bool shouldClearStatusTip; //if there is a statustip currently shown that need to be cleared when leaving. - - bool alternatingColors; - - QSize iconSize; - Qt::TextElideMode textElideMode; - - QRegion updateRegion; // used for the internal update system - QPoint scrollDelayOffset; - - QBasicTimer updateTimer; - QBasicTimer delayedEditing; - QBasicTimer delayedAutoScroll; //used when an item is clicked - QBasicTimer delayedReset; - - QAbstractItemView::ScrollMode verticalScrollMode; - QAbstractItemView::ScrollMode horizontalScrollMode; - -#ifndef QT_NO_GESTURES - // the selection before the last mouse down. In case we have to restore it for scrolling - QItemSelection oldSelection; - QModelIndex oldCurrent; -#endif - - bool currentIndexSet; - - bool wrapItemText; - mutable bool delayedPendingLayout; - bool moveCursorUpdatedView; - -private: - mutable QBasicTimer delayedLayout; - mutable QBasicTimer fetchMoreTimer; -}; - -QT_BEGIN_INCLUDE_NAMESPACE -#include <qvector.h> -QT_END_INCLUDE_NAMESPACE - -template <typename T> -inline int qBinarySearch(const QVector<T> &vec, const T &item, int start, int end) -{ - int i = (start + end + 1) >> 1; - while (end - start > 0) { - if (vec.at(i) > item) - end = i - 1; - else - start = i; - i = (start + end + 1) >> 1; - } - return i; -} - -QT_END_NAMESPACE - -#endif // QT_NO_ITEMVIEWS - -#endif // QABSTRACTITEMVIEW_P_H |