Changeset 846 for trunk/src/gui/graphicsview/qgridlayoutengine_p.h

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/graphicsview/qgridlayoutengine_p.h (modified) (9 diffs)

trunk/src/gui/graphicsview/qgridlayoutengine_p.h

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -90 +90 @@
     Right,
     Bottom
+};
+
+enum {
+    NoConstraint,
+    HorizontalConstraint,   // Width depends on the height
+    VerticalConstraint,     // Height depends on the width
+    UnknownConstraint,      // need to update cache
+    UnfeasibleConstraint    // not feasible, it be has some items with Vertical and others with Horizontal constraints
 };
 
@@ -217 +225 @@
 typedef QMap<QPair<int, int>, QGridLayoutMultiCellData> MultiCellMap;
 
+class QGridLayoutRowInfo;
+
 class QGridLayoutRowData
 {
 public:
     void reset(int count);
-    void distributeMultiCells();
+    void distributeMultiCells(const QGridLayoutRowInfo &rowInfo);
     void calculateGeometries(int start, int end, qreal targetSize, qreal *positions, qreal *sizes,
-                             qreal *descents, const QGridLayoutBox &totalBox);
+                             qreal *descents, const QGridLayoutBox &totalBox,
+                             const QGridLayoutRowInfo &rowInfo);
     QGridLayoutBox totalBox(int start, int end) const;
     void stealBox(int start, int end, int which, qreal *positions, qreal *sizes);
@@ -271 +282 @@
 
     QSizePolicy::Policy sizePolicy(Qt::Orientation orientation) const;
+
+    bool hasDynamicConstraint() const;
+    Qt::Orientation dynamicConstraintOrientation() const;
+
     QSizePolicy::ControlTypes controlTypes(LayoutSide side) const;
     QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
@@ -281 +296 @@
     void transpose();
     void insertOrRemoveRows(int row, int delta, Qt::Orientation orientation = Qt::Vertical);
-    QSizeF effectiveMaxSize() const;
+    QSizeF effectiveMaxSize(const QSizeF &constraint) const;
 
 #ifdef QT_DEBUG
@@ -364 +379 @@
     inline void insertRow(int row, Qt::Orientation orientation = Qt::Vertical)
         { insertOrRemoveRows(row, +1, orientation); }
-    inline void removeRow(int row, Qt::Orientation orientation = Qt::Vertical)
-        { insertOrRemoveRows(row, -1, orientation); }
+    inline void removeRows(int row, int count, Qt::Orientation orientation)
+        { insertOrRemoveRows(row, -count, orientation); }
 
     void invalidate();
@@ -373 +388 @@
     QSizeF sizeHint(const QLayoutStyleInfo &styleInfo, Qt::SizeHint which,
                     const QSizeF &constraint) const;
+
+    // heightForWidth / widthForHeight support
+    QSizeF dynamicallyConstrainedSizeHint(Qt::SizeHint which, const QSizeF &constraint) const;
+    bool ensureDynamicConstraint() const;
+    bool hasDynamicConstraint() const;
+    Qt::Orientation constraintOrientation() const;
+
+
     QSizePolicy::ControlTypes controlTypes(LayoutSide side) const;
     void transpose();
@@ -391 +414 @@
     void insertOrRemoveRows(int row, int delta, Qt::Orientation orientation = Qt::Vertical);
     void fillRowData(QGridLayoutRowData *rowData, const QLayoutStyleInfo &styleInfo,
-                     Qt::Orientation orientation = Qt::Vertical) const;
+                                    qreal *colPositions, qreal *colSizes,
+                                    Qt::Orientation orientation = Qt::Vertical) const;
     void ensureEffectiveFirstAndLastRows() const;
-    void ensureColumnAndRowData(const QLayoutStyleInfo &styleInfo) const;
+    void ensureColumnAndRowData(QGridLayoutRowData *rowData, QGridLayoutBox *totalBox,
+                                            const QLayoutStyleInfo &styleInfo,
+                                            qreal *colPositions, qreal *colSizes,
+                                            Qt::Orientation orientation) const;
+
     void ensureGeometries(const QLayoutStyleInfo &styleInfo, const QSizeF &size) const;
 
@@ -406 +434 @@
     mutable int q_cachedEffectiveFirstRows[NOrientations];
     mutable int q_cachedEffectiveLastRows[NOrientations];
+    mutable quint8 q_cachedConstraintOrientation : 3;
 
     // Layout item input