GuidelineOffset Class Reference

Calculate offset from edge for new Guidelines. More...

#include <GuidelineOffset.h>

Collaboration diagram for GuidelineOffset:

Public Member Functions
	GuidelineOffset ()
QPointF	XT (const QGraphicsView &view, const Transformation &transformation) const
	Compute XT offset for point in center of scene, and returns point in graph coordinates.
QPointF	YR (const QGraphicsView &view, const Transformation &transformation) const
	Compute UR offset for point in center of scene, and returns point in graph coordinates.

Detailed Description

Calculate offset from edge for new Guidelines.

Definition at line 16 of file GuidelineOffset.h.

Constructor & Destructor Documentation

GuidelineOffset()

GuidelineOffset::GuidelineOffset

(

)

Definition at line 13 of file GuidelineOffset.cpp.

{
}

Member Function Documentation

XT()

QPointF GuidelineOffset::XT	(	const QGraphicsView &	view,
		const Transformation &	transformation ) const

Compute XT offset for point in center of scene, and returns point in graph coordinates.

Definition at line 17 of file GuidelineOffset.cpp.

{
  // Get scrolled extent so new Guideline appears in visible portion
  QRect viewportRect = view.viewport()->rect();
  QRect scrolledRect = view.viewportTransform ().inverted ().mapRect (viewportRect);
  QRectF sceneRect = view.scene()->sceneRect();
 
  LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineOffset::bottomTop"
                               << " viewportRect=" << QRectFToString (viewportRect).toLatin1().data()
                               << " scrolledRect=" << QRectFToString (scrolledRect).toLatin1().data()
                               << " sceneRect=" << QRectFToString (sceneRect).toLatin1().data();
 
  // Use center of visible sscene
  QPointF posScene (scrolledRect.center().x(),
                    scrolledRect.center().y()), posGraph;
 
  transformation.transformScreenToRawGraph (posScene,
                                            posGraph);
 
  return posGraph;
}

YR()

QPointF GuidelineOffset::YR	(	const QGraphicsView &	view,
		const Transformation &	transformation ) const

Compute UR offset for point in center of scene, and returns point in graph coordinates.

Definition at line 40 of file GuidelineOffset.cpp.

{
  // Get scrolled extent so new Guideline appears in visible portion
  QRect viewportRect = view.viewport()->rect();
  QRect scrolledRect = view.viewportTransform ().inverted ().mapRect (viewportRect);
  QRectF sceneRect = view.scene()->sceneRect();
 
  LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineOffset::leftRight"
                               << " viewportRect=" << QRectFToString (viewportRect).toLatin1().data()
                               << " scrolledRect=" << QRectFToString (scrolledRect).toLatin1().data()
                               << " sceneRect=" << QRectFToString (sceneRect).toLatin1().data();
 
  // Use center of visible sscene
  QPointF posScene (scrolledRect.center().x(),
                    scrolledRect.center().y()), posGraph;
 
  transformation.transformScreenToRawGraph (posScene,
                                            posGraph);
 
  return posGraph;
}

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

• Guideline/GuidelineOffset.h
• Guideline/GuidelineOffset.cpp