Qt 4.8
qdeclarativepositioners_p_p.h
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41 
42 #ifndef QDECLARATIVELAYOUTS_P_H
43 #define QDECLARATIVELAYOUTS_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55 
56 #include "private/qdeclarativepositioners_p.h"
57 
58 #include "private/qdeclarativeimplicitsizeitem_p_p.h"
59 
60 #include <qdeclarativestate_p.h>
63 
64 #include <QtCore/QObject>
65 #include <QtCore/QString>
66 #include <QtCore/QTimer>
67 #include <QDebug>
68 
71 {
73 
74 public:
79  {
80  }
81 
83  {
84  type = at;
85  }
86 
87  int spacing;
88 
96 
97  void watchChanges(QGraphicsObject *other);
98  void unwatchChanges(QGraphicsObject* other);
101  bool anchorConflict : 1;
102 
104 
105 
107  {
109  if(!queuedPositioning){
110  QTimer::singleShot(0,q,SLOT(prePositioning()));
111  queuedPositioning = true;
112  }
113  }
114 
115  void mirrorChange() {
118  q->prePositioning();
119  }
120  bool isLeftToRight() const {
122  return true;
123  else
124  return effectiveLayoutMirror ? layoutDirection == Qt::RightToLeft : layoutDirection == Qt::LeftToRight;
125  }
126 
128  {
129  Q_UNUSED(other);
130  //Delay is due to many children often being reordered at once
131  //And we only want to reposition them all once
133  }
134 
135  void itemGeometryChanged(QDeclarativeItem *, const QRectF &newGeometry, const QRectF &oldGeometry)
136  {
138  if (newGeometry.size() != oldGeometry.size())
139  q->prePositioning();
140  }
141 
143  {
145  }
147  {
149  q->prePositioning();
150  }
151 
153  {
155  q->positionedItems.removeOne(QDeclarativeBasePositioner::PositionedItem(item));
156  }
157 
159  {
160  return positioner->d_func()->layoutDirection;
161  }
162 
164  {
165  if (positioner->d_func()->effectiveLayoutMirror)
166  return positioner->d_func()->layoutDirection == Qt::RightToLeft ? Qt::LeftToRight : Qt::RightToLeft;
167  else
168  return positioner->d_func()->layoutDirection;
169  }
170 };
171 
173 #endif
virtual void itemSiblingOrderChanged(QDeclarativeItem *other)
void itemGeometryChanged(QDeclarativeItem *, const QRectF &newGeometry, const QRectF &oldGeometry)
QDeclarativeStateOperation::ActionList moveActions
QDeclarativeTransitionManager addTransitionManager
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define at(className, varName)
QDeclarativeBasePositioner::PositionerType type
#define SLOT(a)
Definition: qobjectdefs.h:226
QDeclarativeTransitionManager moveTransitionManager
#define Q_Q(Class)
Definition: qglobal.h:2483
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QRectF class defines a rectangle in the plane using floating point precision. ...
Definition: qrect.h:511
The QDeclarativeItem class provides the most basic of all visual items in QML.
The QDeclarativeBasePositioner class provides a base for QDeclarativeGraphics layouts.
LayoutDirection
Definition: qnamespace.h:1580
#define None
#define Q_DECLARE_PUBLIC(Class)
Definition: qglobal.h:2477
void unwatchChanges(QGraphicsObject *other)
static Qt::LayoutDirection getLayoutDirection(const QDeclarativeBasePositioner *positioner)
static Qt::LayoutDirection getEffectiveLayoutDirection(const QDeclarativeBasePositioner *positioner)
bool singleShot
This static function calls a slot after a given time interval.
Definition: qtimer.h:59
Definition: qnamespace.h:54
QSizeF size() const
Returns the size of the rectangle.
Definition: qrect.h:713
void init(QDeclarativeBasePositioner::PositionerType at)
void itemDestroyed(QDeclarativeItem *item)
void watchChanges(QGraphicsObject *other)
virtual void itemVisibilityChanged(QDeclarativeItem *)
The QGraphicsObject class provides a base class for all graphics items that require signals...
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729
QDeclarativeStateOperation::ActionList addActions
virtual void itemOpacityChanged(QDeclarativeItem *)