plugins/Ubuntu/Gestures/FloatingFlickable.cpp · unity8

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unity8/plugins/Ubuntu/Gestures/FloatingFlickable.cpp

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1/*

3 *

4 * This program is free software; you can redistribute it and/or modify

5 * it under the terms of the GNU General Public License as published by

6 * the Free Software Foundation; version 3.

7 *

8 * This program is distributed in the hope that it will be useful,

9 * but WITHOUT ANY WARRANTY; without even the implied warranty of

10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

11 * GNU General Public License for more details.

12 *

13 * You should have received a copy of the GNU General Public License

14 * along with this program. If not, see <http://www.gnu.org/licenses/>.

15 */

17#include "FloatingFlickable.h"

19#include <private/qquickflickable_p.h>

20#include "DirectionalDragArea.h"

22#include <QDebug>

24FloatingFlickable::FloatingFlickable(QQuickItem *parent)

25 : QQuickItem(parent)

26 , m_mousePressed(false)

27{

28 m_dragArea = new DirectionalDragArea(this);

29 m_dragArea->setWidth(width());

30 m_dragArea->setHeight(height());

31 m_dragArea->setDirection(Direction::Horizontal);

32 connect(m_dragArea, &DirectionalDragArea::touchXChanged,

33 this, &FloatingFlickable::onDragAreaTouchXChanged);

34 connect(m_dragArea, &DirectionalDragArea::draggingChanged,

35 this, &FloatingFlickable::onDragAreaDraggingChanged);

37 m_flickable = new QQuickFlickable(this);

38 m_flickable->setEnabled(false);

39 m_flickable->setWidth(width());

40 m_flickable->setHeight(height());

41 connect(m_flickable, &QQuickFlickable::contentWidthChanged,

42 this, &FloatingFlickable::contentWidthChanged);

43 connect(m_flickable, &QQuickFlickable::contentXChanged,

44 this, &FloatingFlickable::contentXChanged);

46 connect(this, &QQuickItem::widthChanged, this, &FloatingFlickable::updateChildrenWidth);

47 connect(this, &QQuickItem::heightChanged, this, &FloatingFlickable::updateChildrenHeight);

48}

50qreal FloatingFlickable::contentWidth() const

51{

52 return m_flickable->contentWidth();

53}

55void FloatingFlickable::setContentWidth(qreal contentWidth)

56{

57 m_flickable->setContentWidth(contentWidth);

58}

60qreal FloatingFlickable::contentX() const

61{

62 return m_flickable->contentX();

63}

65void FloatingFlickable::setContentX(qreal contentX)

66{

67 m_flickable->setContentX(contentX);

68}

70void FloatingFlickable::updateChildrenWidth()

71{

72 m_dragArea->setWidth(width());

73 m_flickable->setWidth(width());

74}

76void FloatingFlickable::updateChildrenHeight()

77{

78 m_dragArea->setHeight(height());

79 m_flickable->setHeight(height());

80}

82void FloatingFlickable::onDragAreaTouchXChanged(qreal /*touchX*/)

83{

84 if (m_mousePressed) {

85 QMouseEvent mouseEvent(QEvent::MouseMove,

86 QPointF(m_dragArea->touchX(),m_dragArea->touchY()),

87 Qt::NoButton, Qt::LeftButton, Qt::NoModifier);

89 QCoreApplication::sendEvent(m_flickable, &mouseEvent);

91 }

92}

94void FloatingFlickable::onDragAreaDraggingChanged(bool dragging)

95{

96 if (dragging && !m_mousePressed) {

97 QMouseEvent mouseEvent(QEvent::MouseButtonPress,

98 QPointF(m_dragArea->touchX(),m_dragArea->touchY()),

99 Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);

100

101 QCoreApplication::sendEvent(m_flickable, &mouseEvent);

102 m_mousePressed = true;

103

104 } else if (!dragging && m_mousePressed) {

105 QMouseEvent mouseEvent(QEvent::MouseButtonRelease,

106 QPointF(m_dragArea->touchX(),m_dragArea->touchY()),

107 Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);

108

109 QCoreApplication::sendEvent(m_flickable, &mouseEvent);

110 m_mousePressed = false;

111 }

112}