qscrollarea.h 3.3 KB

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  1. /****************************************************************************
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  3. ** Copyright (C) 2016 The Qt Company Ltd.
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  5. **
  6. ** This file is part of the QtWidgets module of the Qt Toolkit.
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  17. ** GNU Lesser General Public License Usage
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  25. ** GNU General Public License Usage
  26. ** Alternatively, this file may be used under the terms of the GNU
  27. ** General Public License version 2.0 or (at your option) the GNU General
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  36. ** $QT_END_LICENSE$
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  38. ****************************************************************************/
  39. #ifndef QSCROLLAREA_H
  40. #define QSCROLLAREA_H
  41. #include <QtWidgets/qabstractscrollarea.h>
  42. QT_BEGIN_NAMESPACE
  43. #ifndef QT_NO_SCROLLAREA
  44. class QScrollAreaPrivate;
  45. class Q_WIDGETS_EXPORT QScrollArea : public QAbstractScrollArea
  46. {
  47. Q_OBJECT
  48. Q_PROPERTY(bool widgetResizable READ widgetResizable WRITE setWidgetResizable)
  49. Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
  50. public:
  51. explicit QScrollArea(QWidget *parent = Q_NULLPTR);
  52. ~QScrollArea();
  53. QWidget *widget() const;
  54. void setWidget(QWidget *widget);
  55. QWidget *takeWidget();
  56. bool widgetResizable() const;
  57. void setWidgetResizable(bool resizable);
  58. QSize sizeHint() const Q_DECL_OVERRIDE;
  59. bool focusNextPrevChild(bool next) Q_DECL_OVERRIDE;
  60. Qt::Alignment alignment() const;
  61. void setAlignment(Qt::Alignment);
  62. void ensureVisible(int x, int y, int xmargin = 50, int ymargin = 50);
  63. void ensureWidgetVisible(QWidget *childWidget, int xmargin = 50, int ymargin = 50);
  64. protected:
  65. QScrollArea(QScrollAreaPrivate &dd, QWidget *parent = Q_NULLPTR);
  66. bool event(QEvent *) Q_DECL_OVERRIDE;
  67. bool eventFilter(QObject *, QEvent *) Q_DECL_OVERRIDE;
  68. void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE;
  69. void scrollContentsBy(int dx, int dy) Q_DECL_OVERRIDE;
  70. QSize viewportSizeHint() const Q_DECL_OVERRIDE;
  71. private:
  72. Q_DECLARE_PRIVATE(QScrollArea)
  73. Q_DISABLE_COPY(QScrollArea)
  74. };
  75. #endif // QT_NO_SCROLLAREA
  76. QT_END_NAMESPACE
  77. #endif // QSCROLLAREA_H