KisDraggableToolButton Class Reference

#include <kis_draggable_tool_button.h>

Inheritance diagram for KisDraggableToolButton:

Signals
void	offsetChanged (int offset)
void	valueChanged (int delta)

Public Member Functions
void	beginDrag (const QPoint &pos)
int	continueDrag (const QPoint &pos)
	KisDraggableToolButton (QWidget *parent)
void	mouseMoveEvent (QMouseEvent *e) override
void	mousePressEvent (QMouseEvent *e) override
int	movementDelta (const QPoint &pos)
	~KisDraggableToolButton () override

Private Member Functions
qreal	tangent ()

Private Attributes
QPoint	m_lastPosition
Qt::Orientation	m_orientation
QPoint	m_startPoint

Detailed Description

Definition at line 13 of file kis_draggable_tool_button.h.

Constructor & Destructor Documentation

KisDraggableToolButton()

KisDraggableToolButton::KisDraggableToolButton

(

QWidget *

parent

)

Definition at line 14 of file kis_draggable_tool_button.cpp.

    : QToolButton(parent),
      m_orientation(Qt::Horizontal)
{
}

~KisDraggableToolButton()

KisDraggableToolButton::~KisDraggableToolButton ( )

override

Definition at line 20 of file kis_draggable_tool_button.cpp.

{
}

Member Function Documentation

beginDrag()

void KisDraggableToolButton::beginDrag

(

const QPoint &

pos

)

Definition at line 24 of file kis_draggable_tool_button.cpp.

{
    m_startPoint = pos;
    m_lastPosition = m_startPoint;
}

References m_lastPosition, and m_startPoint.

continueDrag()

int KisDraggableToolButton::continueDrag

(

const QPoint &

pos

)

Definition at line 30 of file kis_draggable_tool_button.cpp.

{
    QPoint diff = pos - m_startPoint;
 
    int value = 0;
 
    qreal tanx = diff.x() != 0 ? qAbs(qreal(diff.y()) / diff.x()) : 100.0;
 
    if (tanx > 10 && m_orientation == Qt::Horizontal) {
        m_orientation = Qt::Vertical;
    } else if (tanx < 0.1 && m_orientation == Qt::Vertical) {
        m_orientation = Qt::Horizontal;
    }
 
    // people like it more when the they can zoom by dragging in both directions
    Q_UNUSED(m_orientation);
 
    value = diff.x() - diff.y();
 
    return value;
}

References m_orientation, m_startPoint, and value().

mouseMoveEvent()

void KisDraggableToolButton::mouseMoveEvent ( QMouseEvent * e )

override

Definition at line 66 of file kis_draggable_tool_button.cpp.

{
    int distance = continueDrag(e->pos());
    Q_EMIT offsetChanged(distance);
    int delta = movementDelta(e->pos());
    Q_EMIT valueChanged(delta);
 
    QToolButton::mouseMoveEvent(e);
}

References continueDrag(), distance(), movementDelta(), offsetChanged(), and valueChanged().

mousePressEvent()

void KisDraggableToolButton::mousePressEvent ( QMouseEvent * e )

override

Definition at line 60 of file kis_draggable_tool_button.cpp.

{
    beginDrag(e->pos());
    QToolButton::mousePressEvent(e);
}

References beginDrag().

movementDelta()

int KisDraggableToolButton::movementDelta

(

const QPoint &

pos

)

Definition at line 52 of file kis_draggable_tool_button.cpp.

{
    QPoint diff = pos - m_lastPosition;
    m_lastPosition = pos;
    return diff.x() - diff.y();
 
}

References m_lastPosition.

offsetChanged

void KisDraggableToolButton::offsetChanged ( int offset )

signal

tangent()

qreal KisDraggableToolButton::tangent ( )

private

valueChanged

void KisDraggableToolButton::valueChanged ( int delta )

signal

Member Data Documentation

m_lastPosition

QPoint KisDraggableToolButton::m_lastPosition

private

Definition at line 37 of file kis_draggable_tool_button.h.

m_orientation

Qt::Orientation KisDraggableToolButton::m_orientation

private

Definition at line 35 of file kis_draggable_tool_button.h.

m_startPoint

QPoint KisDraggableToolButton::m_startPoint

private

Definition at line 36 of file kis_draggable_tool_button.h.

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The documentation for this class was generated from the following files:

• plugins/dockers/animation/kis_draggable_tool_button.h
• plugins/dockers/animation/kis_draggable_tool_button.cpp