SizeHandleElement Class Reference

Size handle on top of RectangleView represented as small circle or small rectangle. More...

Inheritance diagram for SizeHandleElement:

Collaboration diagram for SizeHandleElement:

Public Types
enum	EHandleLocation {   NONE , TOPLEFT , TOPMIDDLE , TOPRIGHT ,   MIDDLELEFT , MIDDLERIGHT , BOTTOMLEFT , BOTTOMMIDLE ,   BOTTOMRIGHT }
enum	EHandleType { RESIZE , RESIZE_WIDTH , RESIZE_HEIGHT }

Public Slots
virtual void	update_view ()

Signals
void	resize_request (bool going_to_resize)

Public Member Functions
	SizeHandleElement (EHandleLocation pointType, QGraphicsObject *parent=0)
QRectF	boundingRect () const
EHandleLocation	getHandleLocation () const
EHandleType	getHandleType () const
EHandleLocation	getOppositeHandleLocation () const
int	type () const
void	updateHandleElementPosition (const QRectF &rect)
	set position from location type using coordinates of external rectangle More...

Protected Member Functions
void	mousePressEvent (QGraphicsSceneMouseEvent *event)
void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)

Private Attributes
EHandleLocation	m_handleLocation
EHandleType	m_handleType

Static Private Attributes
static QMap< EHandleLocation, Qt::CursorShape >	m_cursors
static QMap< EHandleLocation, EHandleType >	m_location_to_type = create_location_to_type_map()
static QMap< EHandleLocation, EHandleLocation >	m_opposite_handle_location = getMapOfOppositeCorners()

Detailed Description

Size handle on top of RectangleView represented as small circle or small rectangle.

Placed either in corners on in the middle of the edge.

Definition at line 26 of file SizeHandleElement.h.

Member Enumeration Documentation

EHandleLocation

enum SizeHandleElement::EHandleLocation

Enumerator
NONE
TOPLEFT
TOPMIDDLE
TOPRIGHT
MIDDLELEFT
MIDDLERIGHT
BOTTOMLEFT
BOTTOMMIDLE
BOTTOMRIGHT

Definition at line 32 of file SizeHandleElement.h.

                         {
        NONE,
        TOPLEFT,
        TOPMIDDLE,
        TOPRIGHT,
        MIDDLELEFT,
        MIDDLERIGHT,
        BOTTOMLEFT,
        BOTTOMMIDLE,
        BOTTOMRIGHT,
    };

EHandleType

enum SizeHandleElement::EHandleType

Enumerator
RESIZE
RESIZE_WIDTH
RESIZE_HEIGHT

Definition at line 44 of file SizeHandleElement.h.

{ RESIZE, RESIZE_WIDTH, RESIZE_HEIGHT };

Constructor & Destructor Documentation

SizeHandleElement()

SizeHandleElement::SizeHandleElement	(	EHandleLocation	pointType,
		QGraphicsObject *	parent = 0
	)

Definition at line 80 of file SizeHandleElement.cpp.

    : QGraphicsObject(parent)
    , m_handleLocation(pointType)
    , m_handleType(m_location_to_type[pointType])
{
    setCursor(m_cursors[m_handleLocation]);
    setParentItem(parent);
}

References m_cursors, and m_handleLocation.

Member Function Documentation

boundingRect()

QRectF SizeHandleElement::boundingRect

(

)

const

Definition at line 89 of file SizeHandleElement.cpp.

{
    return QRectF(-4, -4, 8, 8);
}

Referenced by paint().

getHandleLocation()

SizeHandleElement::EHandleLocation SizeHandleElement::getHandleLocation

(

)

const

Definition at line 155 of file SizeHandleElement.cpp.

{
    return m_handleLocation;
}

References m_handleLocation.

getHandleType()

SizeHandleElement::EHandleType SizeHandleElement::getHandleType

(

)

const

Definition at line 165 of file SizeHandleElement.cpp.

{
    return m_handleType;
}

References m_handleType.

Referenced by EllipseView::mouseMoveEvent(), RectangleView::mouseMoveEvent(), and paint().

getOppositeHandleLocation()

SizeHandleElement::EHandleLocation SizeHandleElement::getOppositeHandleLocation

(

)

const

Definition at line 160 of file SizeHandleElement.cpp.

{
    return m_opposite_handle_location[m_handleLocation];
}

References m_handleLocation, and m_opposite_handle_location.

Referenced by RectangleBaseView::onSizeHandleElementRequest().

mousePressEvent()

void SizeHandleElement::mousePressEvent ( QGraphicsSceneMouseEvent *  event )

protected

Definition at line 107 of file SizeHandleElement.cpp.

{
    emit resize_request(true);
    QGraphicsObject::mousePressEvent(event);
}

References resize_request().

mouseReleaseEvent()

void SizeHandleElement::mouseReleaseEvent ( QGraphicsSceneMouseEvent *  event )

protected

Definition at line 113 of file SizeHandleElement.cpp.

{
    emit resize_request(false);
    QGraphicsObject::mouseReleaseEvent(event);
}

References resize_request().

paint()

void SizeHandleElement::paint ( QPainter *  painter, const QStyleOptionGraphicsItem *  , QWidget *    )

protected

Definition at line 94 of file SizeHandleElement.cpp.

{
    painter->setRenderHints(QPainter::Antialiasing);
 
    painter->setBrush(MaskEditorHelper::getSelectionMarkerBrush());
    painter->setPen(MaskEditorHelper::getSelectionMarkerPen());
    if (getHandleType() == RESIZE) {
        painter->drawRect(boundingRect());
    } else {
        painter->drawEllipse(boundingRect());
    }
}

References boundingRect(), getHandleType(), MaskEditorHelper::getSelectionMarkerBrush(), MaskEditorHelper::getSelectionMarkerPen(), and RESIZE.

Here is the call graph for this function:

resize_request

void SizeHandleElement::resize_request ( bool  going_to_resize )

signal

Referenced by RectangleBaseView::create_size_handle_elements(), mousePressEvent(), and mouseReleaseEvent().

type()

int SizeHandleElement::type ( ) const

inline

Definition at line 30 of file SizeHandleElement.h.

{ return MaskEditorHelper::SIZEHANDLE; }

References MaskEditorHelper::SIZEHANDLE.

update_view

void SizeHandleElement::update_view ( )

virtualslot

Definition at line 170 of file SizeHandleElement.cpp.

{
    update();
}

updateHandleElementPosition()

void SizeHandleElement::updateHandleElementPosition

(

const QRectF &

rect

)

set position from location type using coordinates of external rectangle

Definition at line 120 of file SizeHandleElement.cpp.

{
    if (m_handleLocation == TOPLEFT) {
        setPos(rect.topLeft());
    }
 
    else if (m_handleLocation == TOPMIDDLE) {
        setPos(QPointF(rect.x() + rect.width() / 2., rect.y()));
    }
 
    else if (m_handleLocation == TOPRIGHT) {
        setPos(rect.topRight());
    }
 
    else if (m_handleLocation == MIDDLERIGHT) {
        setPos(QPointF(rect.x() + rect.width(), rect.y() + rect.height() / 2.));
    }
 
    else if (m_handleLocation == BOTTOMRIGHT) {
        setPos(rect.bottomRight());
    }
 
    else if (m_handleLocation == BOTTOMMIDLE) {
        setPos(QPointF(rect.x() + rect.width() / 2., rect.y() + rect.height()));
    }
 
    else if (m_handleLocation == BOTTOMLEFT) {
        setPos(rect.bottomLeft());
    }
 
    else if (m_handleLocation == MIDDLELEFT) {
        setPos(QPointF(rect.x(), rect.y() + rect.height() / 2.));
    }
}

References BOTTOMLEFT, BOTTOMMIDLE, BOTTOMRIGHT, m_handleLocation, MIDDLELEFT, MIDDLERIGHT, TOPLEFT, TOPMIDDLE, and TOPRIGHT.

Member Data Documentation

m_cursors

QMap< SizeHandleElement::EHandleLocation, Qt::CursorShape > SizeHandleElement::m_cursors

staticprivate

Initial value:

=
    create_cursors_map()

Definition at line 70 of file SizeHandleElement.h.

Referenced by SizeHandleElement().

m_handleLocation

EHandleLocation SizeHandleElement::m_handleLocation

private

Definition at line 68 of file SizeHandleElement.h.

Referenced by SizeHandleElement(), getHandleLocation(), getOppositeHandleLocation(), and updateHandleElementPosition().

m_handleType

EHandleType SizeHandleElement::m_handleType

private

Definition at line 69 of file SizeHandleElement.h.

Referenced by getHandleType().

m_location_to_type

QMap< SizeHandleElement::EHandleLocation, SizeHandleElement::EHandleType > SizeHandleElement::m_location_to_type = create_location_to_type_map()

staticprivate

Definition at line 71 of file SizeHandleElement.h.

m_opposite_handle_location

QMap< SizeHandleElement::EHandleLocation, SizeHandleElement::EHandleLocation > SizeHandleElement::m_opposite_handle_location = getMapOfOppositeCorners()

staticprivate

Definition at line 72 of file SizeHandleElement.h.

Referenced by getOppositeHandleLocation().

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

• /home/www/ba/GUI/coregui/Views/MaskWidgets/SizeHandleElement.h
• /home/www/ba/GUI/coregui/Views/MaskWidgets/SizeHandleElement.cpp