diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicsanchorlayout_p.h')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsanchorlayout_p.h | 101 |
1 files changed, 69 insertions, 32 deletions
diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.h b/src/gui/graphicsview/qgraphicsanchorlayout_p.h index 098407c..c86bfa3 100644 --- a/src/gui/graphicsview/qgraphicsanchorlayout_p.h +++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.h @@ -1,6 +1,7 @@ /**************************************************************************** ** ** Copyright (C) 2009 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. @@ -20,10 +21,9 @@ ** 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. +** 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. @@ -54,6 +54,7 @@ // #include <QGraphicsWidget> +#include <private/qobject_p.h> #include "qgraphicslayout_p.h" #include "qgraphicsanchorlayout.h" @@ -153,6 +154,7 @@ struct AnchorData : public QSimplexVariable { minSize(minimumSize), prefSize(preferredSize), maxSize(maximumSize), sizeAtMinimum(preferredSize), sizeAtPreferred(preferredSize), sizeAtMaximum(preferredSize), + graphicsAnchor(0), skipInPreferred(0), type(Normal), hasSize(true), isLayoutAnchor(false) {} @@ -160,6 +162,7 @@ struct AnchorData : public QSimplexVariable { : QSimplexVariable(), from(0), to(0), minSize(size), prefSize(size), maxSize(size), sizeAtMinimum(size), sizeAtPreferred(size), sizeAtMaximum(size), + graphicsAnchor(0), skipInPreferred(0), type(Normal), hasSize(true), isLayoutAnchor(false) {} @@ -167,6 +170,7 @@ struct AnchorData : public QSimplexVariable { : QSimplexVariable(), from(0), to(0), minSize(0), prefSize(0), maxSize(0), sizeAtMinimum(0), sizeAtPreferred(0), sizeAtMaximum(0), + graphicsAnchor(0), skipInPreferred(0), type(Normal), hasSize(false), isLayoutAnchor(false) {} @@ -215,6 +219,7 @@ struct AnchorData : public QSimplexVariable { qreal sizeAtMinimum; qreal sizeAtPreferred; qreal sizeAtMaximum; + QGraphicsAnchor *graphicsAnchor; uint skipInPreferred : 1; uint type : 2; // either Normal, Sequential or Parallel @@ -226,6 +231,7 @@ protected: minSize(size), prefSize(size), maxSize(size), sizeAtMinimum(size), sizeAtPreferred(size), sizeAtMaximum(size), + graphicsAnchor(0), skipInPreferred(0), type(type), hasSize(true), isLayoutAnchor(false) {} }; @@ -309,13 +315,35 @@ public: QSet<AnchorData *> negatives; }; +class QGraphicsAnchorLayoutPrivate; +/*! + \internal +*/ +class QGraphicsAnchorPrivate : public QObjectPrivate +{ + Q_DECLARE_PUBLIC(QGraphicsAnchor) + +public: + explicit QGraphicsAnchorPrivate(int version = QObjectPrivateVersion); + ~QGraphicsAnchorPrivate(); + + void setSpacing(qreal value); + void unsetSpacing(); + qreal spacing() const; + + QGraphicsAnchorLayoutPrivate *layoutPrivate; + AnchorData *data; +}; + + + /*! \internal QGraphicsAnchorLayout private methods and attributes. */ -class QGraphicsAnchorLayoutPrivate : public QGraphicsLayoutPrivate +class Q_AUTOTEST_EXPORT QGraphicsAnchorLayoutPrivate : public QGraphicsLayoutPrivate { Q_DECLARE_PUBLIC(QGraphicsAnchorLayout) @@ -342,6 +370,11 @@ public: QGraphicsAnchorLayoutPrivate(); + static QGraphicsAnchorLayoutPrivate *get(QGraphicsAnchorLayout *q) + { + return q ? q->d_func() : 0; + } + static Qt::AnchorPoint oppositeEdge( Qt::AnchorPoint edge); @@ -365,35 +398,37 @@ public: void removeCenterAnchors(QGraphicsLayoutItem *item, Qt::AnchorPoint centerEdge, bool substitute = true); void removeCenterConstraints(QGraphicsLayoutItem *item, Orientation orientation); - // helper function used by the 4 API functions - void anchor(QGraphicsLayoutItem *firstItem, - Qt::AnchorPoint firstEdge, - QGraphicsLayoutItem *secondItem, - Qt::AnchorPoint secondEdge, - qreal *spacing = 0); + QGraphicsAnchor *acquireGraphicsAnchor(AnchorData *data) + { + Q_Q(QGraphicsAnchorLayout); + if (!data->graphicsAnchor) { + data->graphicsAnchor = new QGraphicsAnchor(q); + data->graphicsAnchor->d_func()->data = data; + } + return data->graphicsAnchor; + } - // Anchor Manipulation methods - void addAnchor(QGraphicsLayoutItem *firstItem, + // function used by the 4 API functions + QGraphicsAnchor *addAnchor(QGraphicsLayoutItem *firstItem, + Qt::AnchorPoint firstEdge, + QGraphicsLayoutItem *secondItem, + Qt::AnchorPoint secondEdge, + qreal *spacing = 0); + + // Helper for Anchor Manipulation methods + void addAnchor_helper(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge, QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge, AnchorData *data); - void removeAnchor(QGraphicsLayoutItem *firstItem, - Qt::AnchorPoint firstEdge, - QGraphicsLayoutItem *secondItem, - Qt::AnchorPoint secondEdge); - - bool setAnchorSize(const QGraphicsLayoutItem *firstItem, - Qt::AnchorPoint firstEdge, - const QGraphicsLayoutItem *secondItem, - Qt::AnchorPoint secondEdge, - const qreal *anchorSize); - - bool anchorSize(const QGraphicsLayoutItem *firstItem, - Qt::AnchorPoint firstEdge, - const QGraphicsLayoutItem *secondItem, - Qt::AnchorPoint secondEdge, + QGraphicsAnchor *getAnchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge, + QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge); + + void removeAnchor(AnchorVertex *firstVertex, AnchorVertex *secondVertex); + void removeAnchor_helper(AnchorVertex *v1, AnchorVertex *v2); + void setAnchorSize(AnchorData *data, const qreal *anchorSize); + void anchorSize(const AnchorData *data, qreal *minSize = 0, qreal *prefSize = 0, qreal *maxSize = 0) const; @@ -437,7 +472,7 @@ public: void removeInternalVertex(QGraphicsLayoutItem *item, Qt::AnchorPoint edge); // Geometry interpolation methods - void setItemsGeometries(); + void setItemsGeometries(const QRectF &geom); void calculateVertexPositions(Orientation orientation); void setupEdgesInterpolation(Orientation orientation); @@ -448,9 +483,10 @@ public: Orientation orientation); // Linear Programming solver methods - QPair<qreal, qreal> solveMinMax(QList<QSimplexConstraint *> constraints, - GraphPath path); - void solvePreferred(QList<QSimplexConstraint *> constraints); + bool solveMinMax(QList<QSimplexConstraint *> constraints, + GraphPath path, qreal *min, qreal *max); + bool solvePreferred(QList<QSimplexConstraint *> constraints); + bool hasConflicts() const; #ifdef QT_DEBUG void dumpGraph(); @@ -484,6 +520,7 @@ public: // ### bool graphSimplified[2]; + bool graphHasConflicts[2]; uint calculateGraphCacheDirty : 1; }; |