The interface of any QGraphicsViewItem on GraphicsScene to the Sceneadapter. More...

Inheritance diagram for gui2::ElementView:

Collaboration diagram for gui2::ElementView:

Public Member Functions
	ElementView ()
	The constructor. More...

	~ElementView ()

void	adaptH (bool choice)
	Adapt the height. More...

void	adaptW (bool choice)
	Adapt the width. More...

void	adaptX (bool choice)
	Adapt the x position. More...

void	adaptY (bool choice)
	Adapt the y position. More...

void	advance (int phase) override
	Advance method used by the scene adapter. More...

void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget) override
	paint override More...

ModelView::SceneAdapterInterface *	sceneAdapter () const
	Get the conversion axes. More...

void	setCenterBased (bool choice)
	Adapt the dimensions according to the center. More...

void	stretchLeft (bool choice)
	Stretch the rectangle to the left limit of the viewport. More...

void	stretchRight (bool choice)
	Stretch the rectangle to the right limit of the viewport. More...

Protected Member Functions
QPainterPath	displayPath (QPainterPath real_path) const
	modify the path for display according to the scene adapter More...

QRectF	displayRect (const QRectF &real_rect) const
	modify the rectangle for display according to the scene adapter More...

void	hoverEnterEvent (QGraphicsSceneHoverEvent *event) override
	The hoover enter event. More...

void	hoverLeaveEvent (QGraphicsSceneHoverEvent *event) override
	The hoover exit event. More...

void	mousePressEvent (QGraphicsSceneMouseEvent *event) override
	The mouse press event. More...

void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event) override
	The mouse release event. More...

QPointF	scenePos (QPointF pixel_pos) const
	modify the rectangle for display according to the scene adapter More...

Private Member Functions
QRectF	displayRectCenterBased (const QRectF &real_rect) const
	Helper function for displayRect based on the center of real_rect. More...

QRectF	displayRectEdgeBased (const QRectF &real_rect) const
	Helper function for displayRect based on the edge of real_rect. More...

QRectF	stretchRectLeft (const QRectF &real_rect) const
	Stretch the rectangle to the left limit of the viewport. More...

QRectF	stretchRectRight (const QRectF &real_rect) const
	Stretch the rectangle to the right limit of the viewport. More...

Private Attributes
bool	m_adapt_height = true

bool	m_adapt_width = true

bool	m_adapt_x = true

bool	m_adapt_y = true

bool	m_center_based = true

bool	m_stretch_left = false

bool	m_stretch_right = false

Detailed Description

The interface of any QGraphicsViewItem on GraphicsScene to the Sceneadapter.

Definition at line 26 of file elementview.h.

Constructor & Destructor Documentation

◆ ElementView()

gui2::ElementView::ElementView ( )

The constructor.

Definition at line 26 of file elementview.cpp.

                          : QGraphicsObject()
 {
     setAcceptHoverEvents(true);
 }

◆ ~ElementView()

gui2::ElementView::~ElementView ( )

default

Member Function Documentation

◆ adaptH()

void gui2::ElementView::adaptH ( bool choice )

Adapt the height.

Definition at line 217 of file elementview.cpp.

 {
     m_adapt_height = choice;
 }

References m_adapt_height.

Referenced by gui2::HandleElementView::HandleElementView().

◆ adaptW()

void gui2::ElementView::adaptW ( bool choice )

Adapt the width.

Definition at line 211 of file elementview.cpp.

 {
     m_adapt_width = choice;
 }

References m_adapt_width.

Referenced by gui2::HandleElementView::HandleElementView().

◆ adaptX()

void gui2::ElementView::adaptX ( bool choice )

Adapt the x position.

Definition at line 199 of file elementview.cpp.

 {
     m_adapt_x = choice;
 }

References m_adapt_x.

◆ adaptY()

void gui2::ElementView::adaptY ( bool choice )

Adapt the y position.

Definition at line 205 of file elementview.cpp.

 {
     m_adapt_y = choice;
 }

References m_adapt_y.

◆ advance()

void gui2::ElementView::advance ( int phase )

override

Advance method used by the scene adapter.

Definition at line 44 of file elementview.cpp.

 {
     if (!phase)
         return;
     prepareGeometryChange();
     update();
 }

◆ displayPath()

QPainterPath gui2::ElementView::displayPath ( QPainterPath real_path ) const

protected

modify the path for display according to the scene adapter

Definition at line 168 of file elementview.cpp.

 {
     auto adapter = sceneAdapter();
     if (!adapter)
         return real_path;
  
     auto display_path = QPainterPath(real_path);
     for (int i = 0; i < display_path.elementCount(); i++) {
         QPointF pt = display_path.elementAt(i);
         display_path.setElementPositionAt(i, adapter->toSceneX(-pt.x()), adapter->toSceneY(pt.y()));
     }
     return display_path;
 }

References sceneAdapter().

Referenced by gui2::RoughnessElementView::boundingRect(), gui2::RoughnessElementView::paint(), and gui2::RoughnessElementView::shape().

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◆ displayRect()

QRectF gui2::ElementView::displayRect ( const QRectF & real_rect ) const

protected

modify the rectangle for display according to the scene adapter

Definition at line 60 of file elementview.cpp.

 {
     auto adapter = sceneAdapter();
     if (!adapter)
         return real_rect;
  
     auto output = QRectF(real_rect);
  
     if (m_center_based) {
         output = displayRectCenterBased(real_rect);
     } else {
         output = displayRectEdgeBased(real_rect);
     }
  
     if (m_stretch_left) {
         output = stretchRectLeft(output);
     } else if (m_stretch_right) {
         output = stretchRectRight(output);
     }
  
     return output;
 }

References displayRectCenterBased(), displayRectEdgeBased(), m_center_based, m_stretch_left, m_stretch_right, sceneAdapter(), stretchRectLeft(), and stretchRectRight().

Referenced by gui2::HandleElementView::boundingRect(), gui2::SegmentElementView::boundingRect(), gui2::HandleElementView::paint(), gui2::SegmentElementView::paint(), gui2::HandleElementView::shape(), and gui2::SegmentElementView::shape().

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◆ displayRectCenterBased()

QRectF gui2::ElementView::displayRectCenterBased ( const QRectF & real_rect ) const

private

Helper function for displayRect based on the center of real_rect.

Definition at line 84 of file elementview.cpp.

 {
     auto adapter = sceneAdapter();
     double x = real_rect.x();
     double y = real_rect.y();
     double w = real_rect.width();
     double h = real_rect.height();
  
     double center_x = x + w / 2.;
     double center_y = y + h / 2.;
  
     if (m_adapt_x) {
         center_x = adapter->toSceneX(-center_x);
     }
     if (m_adapt_y) {
         center_y = adapter->toSceneY(center_y);
     }
     if (m_adapt_width) {
         w = adapter->toSceneX(w) - adapter->toSceneX(0);
     }
     if (m_adapt_height) {
         h = adapter->toSceneY(h) - adapter->toSceneY(0);
     }
  
     x = center_x - w / 2;
     y = center_y - h / 2;
  
     return QRectF(x, y, w, h);
 }

References m_adapt_height, m_adapt_width, m_adapt_x, m_adapt_y, and sceneAdapter().

Referenced by displayRect().

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◆ displayRectEdgeBased()

QRectF gui2::ElementView::displayRectEdgeBased ( const QRectF & real_rect ) const

private

Helper function for displayRect based on the edge of real_rect.

Definition at line 115 of file elementview.cpp.

 {
     auto adapter = sceneAdapter();
     double x = real_rect.x();
     double y = real_rect.y();
     double w = real_rect.width();
     double h = real_rect.height();
  
     if (m_adapt_x) {
         x = adapter->toSceneX(-x);
     }
     if (m_adapt_y) {
         y = adapter->toSceneY(y);
     }
     if (m_adapt_width) {
         w = adapter->toSceneX(w) - adapter->toSceneX(0);
     }
     if (m_adapt_height) {
         h = adapter->toSceneY(h) - adapter->toSceneY(0);
     }
  
     return QRectF(x, y, w, h);
 }

References m_adapt_height, m_adapt_width, m_adapt_x, m_adapt_y, and sceneAdapter().

Referenced by displayRect().

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◆ hoverEnterEvent()

void gui2::ElementView::hoverEnterEvent ( QGraphicsSceneHoverEvent * event )

overrideprotected

The hoover enter event.

Definition at line 235 of file elementview.cpp.

 {
     if (flags() & QGraphicsItem::ItemIsMovable)
         setCursor(QCursor(Qt::OpenHandCursor));
     QGraphicsItem::hoverEnterEvent(event);
 }

◆ hoverLeaveEvent()

void gui2::ElementView::hoverLeaveEvent ( QGraphicsSceneHoverEvent * event )

overrideprotected

The hoover exit event.

Definition at line 243 of file elementview.cpp.

 {
     unsetCursor();
     QGraphicsItem::hoverLeaveEvent(event);
 }

◆ mousePressEvent()

void gui2::ElementView::mousePressEvent ( QGraphicsSceneMouseEvent * event )

overrideprotected

The mouse press event.

Definition at line 250 of file elementview.cpp.

 {
     if (flags() & QGraphicsItem::ItemIsMovable)
         setCursor(QCursor(Qt::ClosedHandCursor));
     QGraphicsItem::mousePressEvent(event);
 }

◆ mouseReleaseEvent()

void gui2::ElementView::mouseReleaseEvent ( QGraphicsSceneMouseEvent * event )

overrideprotected

The mouse release event.

Definition at line 258 of file elementview.cpp.

 {
     if (flags() & QGraphicsItem::ItemIsMovable)
         setCursor(QCursor(Qt::OpenHandCursor));
     QGraphicsItem::mouseReleaseEvent(event);
 }

◆ paint()

void gui2::ElementView::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

override

paint override

Definition at line 53 of file elementview.cpp.

 {
     painter->setClipRect(sceneAdapter()->viewportRectangle());
 }

References sceneAdapter().

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◆ sceneAdapter()

ModelView::SceneAdapterInterface * gui2::ElementView::sceneAdapter ( ) const

Get the conversion axes.

Definition at line 34 of file elementview.cpp.

 {
     GraphicsScene* scene_item = static_cast<GraphicsScene*>(scene());
     if (!scene_item)
         return nullptr;
  
     return scene_item->sceneAdapter();
 }

References gui2::GraphicsScene::sceneAdapter().

Referenced by displayPath(), displayRect(), displayRectCenterBased(), displayRectEdgeBased(), paint(), gui2::HandleElementView::paint(), gui2::RoughnessElementView::paint(), gui2::SegmentElementView::paint(), scenePos(), stretchRectLeft(), and stretchRectRight().

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◆ scenePos()

QPointF gui2::ElementView::scenePos ( QPointF pixel_pos ) const

protected

modify the rectangle for display according to the scene adapter

Definition at line 183 of file elementview.cpp.

 {
     auto adapter = sceneAdapter();
     if (!adapter)
         return pixel_pos;
  
     return QPointF(-adapter->fromSceneX(pixel_pos.x()), adapter->fromSceneY(pixel_pos.y()));
 }

References sceneAdapter().

Referenced by gui2::HandleElementView::mouseMoveEvent(), and gui2::SegmentElementView::mouseMoveEvent().

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◆ setCenterBased()

void gui2::ElementView::setCenterBased ( bool choice )

Adapt the dimensions according to the center.

Definition at line 193 of file elementview.cpp.

 {
     m_center_based = choice;
 }

References m_center_based.

◆ stretchLeft()

void gui2::ElementView::stretchLeft ( bool choice )

Stretch the rectangle to the left limit of the viewport.

Definition at line 223 of file elementview.cpp.

 {
     m_stretch_left = choice;
 }

References m_stretch_left.

◆ stretchRectLeft()

QRectF gui2::ElementView::stretchRectLeft ( const QRectF & real_rect ) const

private

Stretch the rectangle to the left limit of the viewport.

Definition at line 140 of file elementview.cpp.

 {
     double x_i = real_rect.x();
     double y_i = real_rect.y();
     double x_f = real_rect.x() + real_rect.width();
     double y_f = real_rect.y() + real_rect.height();
  
     auto viewport_rect = sceneAdapter()->viewportRectangle();
     x_i = viewport_rect.x();
  
     return QRectF(x_i, y_i, x_f - x_i, y_f - y_i);
 }

References sceneAdapter(), and ModelView::SceneAdapterInterface::viewportRectangle().

Referenced by displayRect().

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◆ stretchRectRight()

QRectF gui2::ElementView::stretchRectRight ( const QRectF & real_rect ) const

private

Stretch the rectangle to the right limit of the viewport.

Definition at line 154 of file elementview.cpp.

 {
     double x_i = real_rect.x();
     double y_i = real_rect.y();
     double x_f = real_rect.x() + real_rect.width();
     double y_f = real_rect.y() + real_rect.height();
  
     auto viewport_rect = sceneAdapter()->viewportRectangle();
     x_f = viewport_rect.x() + viewport_rect.width();
  
     return QRectF(x_i, y_i, x_f - x_i, y_f - y_i);
 }

References sceneAdapter(), and ModelView::SceneAdapterInterface::viewportRectangle().

Referenced by displayRect().

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◆ stretchRight()

void gui2::ElementView::stretchRight ( bool choice )

Stretch the rectangle to the right limit of the viewport.

Definition at line 229 of file elementview.cpp.

 {
     m_stretch_right = choice;
 }

References m_stretch_right.

Member Data Documentation

◆ m_adapt_height

bool gui2::ElementView::m_adapt_height = true

private

Definition at line 67 of file elementview.h.

Referenced by adaptH(), displayRectCenterBased(), and displayRectEdgeBased().

◆ m_adapt_width

bool gui2::ElementView::m_adapt_width = true

private

Definition at line 66 of file elementview.h.

Referenced by adaptW(), displayRectCenterBased(), and displayRectEdgeBased().

◆ m_adapt_x

bool gui2::ElementView::m_adapt_x = true

private

Definition at line 64 of file elementview.h.

Referenced by adaptX(), displayRectCenterBased(), and displayRectEdgeBased().

◆ m_adapt_y

bool gui2::ElementView::m_adapt_y = true

private

Definition at line 65 of file elementview.h.

Referenced by adaptY(), displayRectCenterBased(), and displayRectEdgeBased().

◆ m_center_based

bool gui2::ElementView::m_center_based = true

private

Definition at line 63 of file elementview.h.

Referenced by displayRect(), and setCenterBased().

◆ m_stretch_left

bool gui2::ElementView::m_stretch_left = false

private

Definition at line 68 of file elementview.h.

Referenced by displayRect(), and stretchLeft().

◆ m_stretch_right

bool gui2::ElementView::m_stretch_right = false

private

Definition at line 69 of file elementview.h.

Referenced by displayRect(), and stretchRight().

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

/home/www/ba/gui2/sldeditor/elementview.h
/home/www/ba/gui2/sldeditor/elementview.cpp

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ElementView()

◆ ~ElementView()

Member Function Documentation

◆ adaptH()

◆ adaptW()

◆ adaptX()

◆ adaptY()

◆ advance()

◆ displayPath()

◆ displayRect()

◆ displayRectCenterBased()

◆ displayRectEdgeBased()

◆ hoverEnterEvent()

◆ hoverLeaveEvent()

◆ mousePressEvent()

◆ mouseReleaseEvent()

◆ paint()

◆ sceneAdapter()

◆ scenePos()

◆ setCenterBased()

◆ stretchLeft()

◆ stretchRectLeft()

◆ stretchRectRight()

◆ stretchRight()

Member Data Documentation

◆ m_adapt_height

◆ m_adapt_width

◆ m_adapt_x

◆ m_adapt_y

◆ m_center_based

◆ m_stretch_left

◆ m_stretch_right