/usr/include/Wt/WStackedWidget is in libwt-dev 3.3.3+dfsg-4.1.
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | // This may look like C code, but it's really -*- C++ -*-
/*
 * Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.
 *
 * See the LICENSE file for terms of use.
 */
#ifndef WSTACKEDWIDGET_H_
#define WSTACKEDWIDGET_H_
#include <Wt/WContainerWidget>
namespace Wt {
/*! \class WStackedWidget Wt/WStackedWidget Wt/WStackedWidget
 *  \brief A container widget that stacks its widgets on top of each
 *         other.
 *
 * This is a container widget which at all times has only one item
 * visible. The widget accomplishes this using setHidden(bool) on the
 * children.
 *
 * Using currentIndex() and setCurrentIndex(int index) you can
 * retrieve or set the visible widget.
 *
 * %WStackedWidget, like WContainerWidget, is by default not inline.
 *
 * <h3>CSS</h3>
 *
 * The widget is rendered using an HTML <tt><div></tt> tag and
 * does not provide styling. It can be styled using inline or external
 * CSS as appropriate.
 *
 * \sa WMenu
 */
class WT_API WStackedWidget : public WContainerWidget
{
public:
  /*! \brief Creates a new stack.
   */
  WStackedWidget(WContainerWidget *parent = 0);
  virtual void addWidget(WWidget *widget);
  /*! \brief Returns the index of the widget that is currently shown.
   *
   * \sa setCurrentIndex(), currentWidget()
   */
  int currentIndex() const;
  /*! \brief Returns the widget that is currently shown.
   *
   * \sa setCurrentWidget(), currentIndex()
   */
  WWidget *currentWidget() const;
  /*! \brief Insert a widget at a given index
   */
  void insertWidget(int index, WWidget *widget);
  /*! \brief Changes the current widget.
   *
   * The widget with index \p index is made visible, while all other
   * widgets are hidden.
   *
   * The change of current widget is done using the animation settings
   * specified by setTransitionAnimation().
   *
   * The default value for current index is 0 (provided thath 
   *
   * \sa currentIndex(), setCurrentWidget()
   */
  void setCurrentIndex(int index);
  /*! \brief Changes the current widget using a custom animation.
   *
   * \sa currentIndex(), setCurrentWidget()
   */
  void setCurrentIndex(int index, const WAnimation& animation,
		       bool autoReverse = true);
  /*! \brief Changes the current widget.
   *
   * The widget \p widget, which must have been added before, is
   * made visible, while all other widgets are hidden.
   *
   * \sa currentWidget(), setCurrentIndex()
   */
  void setCurrentWidget(WWidget *widget);
  /*! \brief Specifies an animation used during transitions.
   *
   * The animation is used to hide the previously current widget and
   * show the next current widget using setCurrentIndex().
   *
   * The initial value for \p animation is WAnimation(), specifying
   * no animation.
   *
   * When \p autoReverse is set to \c true, then the reverse animation
   * is chosen when the new index precedes the current index. This
   * only applies to WAnimation::SlideLeft, WAnimation::SlideRight,
   * WAnimation::SlideUp or WAnimation::SlideDown transition
   * effects.
   *
   * \sa setCurrentIndex()
   */
  void setTransitionAnimation(const WAnimation& animation,
			      bool autoReverse = false);
protected:
  using WWidget::removeChild;
  virtual void removeChild(WWidget *child);
  virtual DomElement *createDomElement(WApplication *app);
  virtual void getDomChanges(std::vector<DomElement *>& result,
			     WApplication *app);
  virtual void render(WFlags<RenderFlag> flags);
private:
  WAnimation animation_;
  bool autoReverseAnimation_;
  int currentIndex_;
  bool widgetsAdded_, javaScriptDefined_, loadAnimateJS_;
  void defineJavaScript();  
  void loadAnimateJS();
};
}
#endif // WSTACKEDWIDGET_H_
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