libkpl  5.0
A Library for Graphical Presentation of Data Sets and Functions
Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
ScaledItem Class Reference

Scaled item class. More...

#include <scaleditem.h>

Inheritance diagram for ScaledItem:
Inheritance graph
[legend]

Public Member Functions

 ScaledItem ()
 Constructor. More...
 
 ScaledItem (const ScaledItem &a)
 Copy constructor. More...
 
 ScaledItem (const KConfigGroup *plo, Symbol symbol, unsigned color, QGraphicsItem *parent)
 Constructor. More...
 
 ScaledItem (FillStyle fillStyle, Symbol symbol, unsigned color, double fx, double fy, double xOffset, double yOffset, double relSize, QGraphicsItem *parent)
 Constructor. More...
 
virtual ~ScaledItem ()
 Destructor. More...
 
unsigned color () const
 Returns color. More...
 
FillStyle fillStyle () const
 Returns fill style. More...
 
bool isNormalized (double fx, double fy) const
 Checks if both normalization factors are equal to given values. More...
 
void normalize (double fx, double fy)
 Sets normalization factors. More...
 
double normX () const
 Returns normalization factor for x values. More...
 
double normY () const
 Returns normalization factor for y values. More...
 
QPixmap pixmap () const
 Returns decoration pixmap for item list. More...
 
void readPlo (const KConfigGroup *plo, Symbol symbol, unsigned color)
 Initializes corresponding to plot file. More...
 
void setColor (unsigned color)
 Sets color. More...
 
void setFillStyle (FillStyle style)
 Sets fill style. More...
 
void setNormX (double fx)
 Sets normalization factor for x values. More...
 
void setNormY (double fy)
 Sets normalization factor for y values. More...
 
void setProperties (const QTransform &m)
 Sets properties according to transformation matrix. More...
 
void setSize ()
 Sets size according to transformation matrix. More...
 
void setSymbol (Symbol symbol)
 Sets symbol type. More...
 
void setXOffset (double xOffset)
 Sets offset for x values. More...
 
void setYOffset (double yOffset)
 Sets offset for y values. More...
 
Symbol symbol () const
 Returns symbol type. More...
 
void update ()
 Applies changes and forces redrawing. More...
 
void updateGeometry ()
 Updates geometry. More...
 
void writePlo (KConfigGroup *plo, bool visible) const
 Writes into plot file. More...
 
double xOffset () const
 Returns offset for x values. More...
 
double yOffset () const
 Returns offset for y values. More...
 
- Public Member Functions inherited from KplItem
 KplItem (double relSize=1)
 Constructor. More...
 
 KplItem (const KplItem &a)
 Copy constructor. More...
 
 KplItem (const KConfigGroup *plo)
 Constructor. More...
 
virtual ~KplItem ()
 Destructor. More...
 
void readPlo (const KConfigGroup *plo)
 Initializes corresponding to plot file. More...
 
double relSize () const
 Returns relative size of item. More...
 
void setRelSize (double relSize)
 Sets relative size of item. More...
 
void writePlo (KConfigGroup *plo, bool visible=true) const
 Writes into plot file. More...
 
- Public Member Functions inherited from QGraphicsItem
 QGraphicsItem (QGraphicsItem *parent)
 
QGraphicsScenescene () const
 
QGraphicsItemparentItem () const
 
QGraphicsItemtopLevelItem () const
 
QGraphicsObjectparentObject () const
 
QGraphicsWidgetparentWidget () const
 
QGraphicsWidgettopLevelWidget () const
 
QGraphicsWidgetwindow () const
 
QGraphicsItempanel () const
 
void setParentItem (QGraphicsItem *newParent)
 
QList< QGraphicsItem * > children () const
 
QList< QGraphicsItem * > childItems () const
 
bool isWidget () const
 
bool isWindow () const
 
bool isPanel () const
 
QGraphicsObjecttoGraphicsObject ()
 
const QGraphicsObjecttoGraphicsObject () const
 
QGraphicsItemGroupgroup () const
 
void setGroup (QGraphicsItemGroup *group)
 
GraphicsItemFlags flags () const
 
void setFlag (GraphicsItemFlag flag, bool enabled)
 
void setFlags (GraphicsItemFlags flags)
 
CacheMode cacheMode () const
 
void setCacheMode (CacheMode mode, const QSize &logicalCacheSize)
 
PanelModality panelModality () const
 
void setPanelModality (PanelModality panelModality)
 
bool isBlockedByModalPanel (QGraphicsItem **blockingPanel) const
 
QString toolTip () const
 
void setToolTip (const QString &toolTip)
 
QCursor cursor () const
 
void setCursor (const QCursor &cursor)
 
bool hasCursor () const
 
void unsetCursor ()
 
bool isVisible () const
 
bool isVisibleTo (const QGraphicsItem *parent) const
 
void setVisible (bool visible)
 
void hide ()
 
void show ()
 
bool isEnabled () const
 
void setEnabled (bool enabled)
 
bool isSelected () const
 
void setSelected (bool selected)
 
bool acceptDrops () const
 
void setAcceptDrops (bool on)
 
qreal opacity () const
 
qreal effectiveOpacity () const
 
void setOpacity (qreal opacity)
 
QGraphicsEffectgraphicsEffect () const
 
void setGraphicsEffect (QGraphicsEffect *effect)
 
Qt::MouseButtons acceptedMouseButtons () const
 
void setAcceptedMouseButtons (Qt::MouseButtons buttons)
 
bool acceptsHoverEvents () const
 
void setAcceptsHoverEvents (bool enabled)
 
bool acceptHoverEvents () const
 
void setAcceptHoverEvents (bool enabled)
 
bool acceptTouchEvents () const
 
void setAcceptTouchEvents (bool enabled)
 
bool filtersChildEvents () const
 
void setFiltersChildEvents (bool enabled)
 
bool handlesChildEvents () const
 
void setHandlesChildEvents (bool enabled)
 
bool isActive () const
 
void setActive (bool active)
 
bool hasFocus () const
 
void setFocus (Qt::FocusReason focusReason)
 
void clearFocus ()
 
QGraphicsItemfocusProxy () const
 
void setFocusProxy (QGraphicsItem *item)
 
QGraphicsItemfocusItem () const
 
void grabMouse ()
 
void ungrabMouse ()
 
void grabKeyboard ()
 
void ungrabKeyboard ()
 
QPointF pos () const
 
qreal x () const
 
void setX (qreal x)
 
qreal y () const
 
void setY (qreal y)
 
QPointF scenePos () const
 
void setPos (const QPointF &pos)
 
void setPos (qreal x, qreal y)
 
void moveBy (qreal dx, qreal dy)
 
void ensureVisible (const QRectF &rect, int xmargin, int ymargin)
 
void ensureVisible (qreal x, qreal y, qreal w, qreal h, int xmargin, int ymargin)
 
QMatrix matrix () const
 
QMatrix sceneMatrix () const
 
void setMatrix (const QMatrix &matrix, bool combine)
 
void resetMatrix ()
 
QTransform transform () const
 
QTransform sceneTransform () const
 
QTransform deviceTransform (const QTransform &viewportTransform) const
 
QTransform itemTransform (const QGraphicsItem *other, bool *ok) const
 
void setTransform (const QTransform &matrix, bool combine)
 
void resetTransform ()
 
void rotate (qreal angle)
 
void scale (qreal sx, qreal sy)
 
void shear (qreal sh, qreal sv)
 
void translate (qreal dx, qreal dy)
 
void setRotation (qreal angle)
 
qreal rotation () const
 
void setScale (qreal factor)
 
qreal scale () const
 
QList< QGraphicsTransform * > transformations () const
 
void setTransformations (const QList< QGraphicsTransform * > &transformations)
 
QPointF transformOriginPoint () const
 
void setTransformOriginPoint (const QPointF &origin)
 
void setTransformOriginPoint (qreal x, qreal y)
 
virtual void advance (int phase)
 
qreal zValue () const
 
void setZValue (qreal z)
 
void stackBefore (const QGraphicsItem *sibling)
 
virtual QRectF boundingRect () const =0
 
QRectF childrenBoundingRect () const
 
QRectF sceneBoundingRect () const
 
virtual QPainterPath shape () const
 
bool isClipped () const
 
QPainterPath clipPath () const
 
virtual bool contains (const QPointF &point) const
 
virtual bool collidesWithItem (const QGraphicsItem *other, Qt::ItemSelectionMode mode) const
 
virtual bool collidesWithPath (const QPainterPath &path, Qt::ItemSelectionMode mode) const
 
QList< QGraphicsItem * > collidingItems (Qt::ItemSelectionMode mode) const
 
bool isObscured (const QRectF &rect) const
 
bool isObscured (qreal x, qreal y, qreal w, qreal h) const
 
virtual bool isObscuredBy (const QGraphicsItem *item) const
 
virtual QPainterPath opaqueArea () const
 
QRegion boundingRegion (const QTransform &itemToDeviceTransform) const
 
qreal boundingRegionGranularity () const
 
void setBoundingRegionGranularity (qreal granularity)
 
virtual void paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)=0
 
void update (const QRectF &rect)
 
void update (qreal x, qreal y, qreal width, qreal height)
 
void scroll (qreal dx, qreal dy, const QRectF &rect)
 
QPointF mapToItem (const QGraphicsItem *item, const QPointF &point) const
 
QPointF mapToParent (const QPointF &point) const
 
QPointF mapToScene (const QPointF &point) const
 
QPolygonF mapToItem (const QGraphicsItem *item, const QRectF &rect) const
 
QPolygonF mapToParent (const QRectF &rect) const
 
QPolygonF mapToScene (const QRectF &rect) const
 
QRectF mapRectToItem (const QGraphicsItem *item, const QRectF &rect) const
 
QRectF mapRectToParent (const QRectF &rect) const
 
QRectF mapRectToScene (const QRectF &rect) const
 
QPolygonF mapToItem (const QGraphicsItem *item, const QPolygonF &polygon) const
 
QPolygonF mapToParent (const QPolygonF &polygon) const
 
QPolygonF mapToScene (const QPolygonF &polygon) const
 
QPainterPath mapToItem (const QGraphicsItem *item, const QPainterPath &path) const
 
QPainterPath mapToParent (const QPainterPath &path) const
 
QPainterPath mapToScene (const QPainterPath &path) const
 
QPointF mapFromItem (const QGraphicsItem *item, const QPointF &point) const
 
QPointF mapFromParent (const QPointF &point) const
 
QPointF mapFromScene (const QPointF &point) const
 
QPolygonF mapFromItem (const QGraphicsItem *item, const QRectF &rect) const
 
QPolygonF mapFromParent (const QRectF &rect) const
 
QPolygonF mapFromScene (const QRectF &rect) const
 
QRectF mapRectFromItem (const QGraphicsItem *item, const QRectF &rect) const
 
QRectF mapRectFromParent (const QRectF &rect) const
 
QRectF mapRectFromScene (const QRectF &rect) const
 
QPolygonF mapFromItem (const QGraphicsItem *item, const QPolygonF &polygon) const
 
QPolygonF mapFromParent (const QPolygonF &polygon) const
 
QPolygonF mapFromScene (const QPolygonF &polygon) const
 
QPainterPath mapFromItem (const QGraphicsItem *item, const QPainterPath &path) const
 
QPainterPath mapFromParent (const QPainterPath &path) const
 
QPainterPath mapFromScene (const QPainterPath &path) const
 
QPointF mapToItem (const QGraphicsItem *item, qreal x, qreal y) const
 
QPointF mapToParent (qreal x, qreal y) const
 
QPointF mapToScene (qreal x, qreal y) const
 
QPolygonF mapToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QPolygonF mapToParent (qreal x, qreal y, qreal w, qreal h) const
 
QPolygonF mapToScene (qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectToParent (qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectToScene (qreal x, qreal y, qreal w, qreal h) const
 
QPointF mapFromItem (const QGraphicsItem *item, qreal x, qreal y) const
 
QPointF mapFromParent (qreal x, qreal y) const
 
QPointF mapFromScene (qreal x, qreal y) const
 
QPolygonF mapFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QPolygonF mapFromParent (qreal x, qreal y, qreal w, qreal h) const
 
QPolygonF mapFromScene (qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectFromParent (qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectFromScene (qreal x, qreal y, qreal w, qreal h) const
 
bool isAncestorOf (const QGraphicsItem *child) const
 
QGraphicsItemcommonAncestorItem (const QGraphicsItem *other) const
 
bool isUnderMouse () const
 
QVariant data (int key) const
 
void setData (int key, const QVariant &value)
 
Qt::InputMethodHints inputMethodHints () const
 
void setInputMethodHints (Qt::InputMethodHints hints)
 
virtual int type () const
 
void installSceneEventFilter (QGraphicsItem *filterItem)
 
void removeSceneEventFilter (QGraphicsItem *filterItem)
 

Static Public Member Functions

static void exponent (double a, int &iExp, double &f)
 Calculates normalization factor. More...
 
static bool limits (double &xMin, double &xMax, const double *values, int n)
 Calculates minimum and maximum values of an array. More...
 
- Static Public Member Functions inherited from KplItem
static QUrl absoluteUrl (const QString &path, const QUrl &urlPlo)
 Constructs absolute file URL. More...
 
static QBrush createBrush (unsigned color, FillStyle fillStyle=NoBrush)
 Creates brush. More...
 
static QPen createPen (double width, unsigned color, PenType penType, Symbol symbol)
 Creates pen. More...
 
static void paintSymbol (QPainter *painter, const QRectF &rect, Symbol symbol=OpenCircle)
 Paints symbol. More...
 
static QPixmap pixmap (Symbol symbol)
 Returns black decoration pixmap of plot symbol for use in dialog GUI. More...
 
static QPixmap pixmap (QPen pen, Symbol symbol=SolidLine)
 Returns decoration pixmap of plot symbol for use in item lists. More...
 
static QString path (const QUrl &urlPlo, const QUrl &url, bool absolute=false)
 Constructs absolute or (if possible) relative file path. More...
 
static void resetDashOffset ()
 Resets offset for dashed lines. More...
 
static unsigned rgb (const QString &color)
 Converts rgb string to QRgb. More...
 
static unsigned rgbQt1 (unsigned rgb)
 Converts QRgb to Qt1 QRgb. More...
 

Protected Member Functions

double length (const double *x, const double *y, int n) const
 Calculates line length. More...
 
void plotArray (QPainter *painter, const double *x, const double *y, int n) const
 Plots array. More...
 
void setProperties ()
 Sets properties according to transformation matrix. More...
 
- Protected Member Functions inherited from KplItem
QPenchangePenWidth (QPen &pen, double width) const
 Changes pen width. More...
 
QPen createPen (QGraphicsItem *item, unsigned color=0, PenType penType=DataPen, Symbol symbol=SolidLine) const
 Creates pen for plot item. More...
 
double penWidth (const QGraphicsItem *item, PenType penType=DataPen) const
 Calculates pen width for plot item. More...
 
- Protected Member Functions inherited from QGraphicsItem
void updateMicroFocus ()
 
virtual bool sceneEventFilter (QGraphicsItem *watched, QEvent *event)
 
virtual bool sceneEvent (QEvent *event)
 
virtual void contextMenuEvent (QGraphicsSceneContextMenuEvent *event)
 
virtual void dragEnterEvent (QGraphicsSceneDragDropEvent *event)
 
virtual void dragLeaveEvent (QGraphicsSceneDragDropEvent *event)
 
virtual void dragMoveEvent (QGraphicsSceneDragDropEvent *event)
 
virtual void dropEvent (QGraphicsSceneDragDropEvent *event)
 
virtual void focusInEvent (QFocusEvent *event)
 
virtual void focusOutEvent (QFocusEvent *event)
 
virtual void hoverEnterEvent (QGraphicsSceneHoverEvent *event)
 
virtual void hoverMoveEvent (QGraphicsSceneHoverEvent *event)
 
virtual void hoverLeaveEvent (QGraphicsSceneHoverEvent *event)
 
virtual void keyPressEvent (QKeyEvent *event)
 
virtual void keyReleaseEvent (QKeyEvent *event)
 
virtual void mousePressEvent (QGraphicsSceneMouseEvent *event)
 
virtual void mouseMoveEvent (QGraphicsSceneMouseEvent *event)
 
virtual void mouseReleaseEvent (QGraphicsSceneMouseEvent *event)
 
virtual void mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event)
 
virtual void wheelEvent (QGraphicsSceneWheelEvent *event)
 
virtual void inputMethodEvent (QInputMethodEvent *event)
 
virtual QVariant inputMethodQuery (Qt::InputMethodQuery query) const
 
virtual QVariant itemChange (GraphicsItemChange change, const QVariant &value)
 
void prepareGeometryChange ()
 

Protected Attributes

FillStyle m_fillStyle
 
Symbol m_symbol
 
unsigned m_color
 
double m_normX
 
double m_normY
 
double m_xOffset
 
double m_yOffset
 
double dydx
 
double myDashOffset
 
QPen m_pen
 
QPainterPath bPath
 
QRectF bRect
 
QRectF symbRect
 
QTransform m_matrix
 
- Protected Attributes inherited from KplItem
double m_relSize
 

Additional Inherited Members

- Public Types inherited from KplItem
enum  FillStyle {
  NoBrush, SolidPattern, HorPattern, VerPattern,
  CrossPattern, BDiagPattern, FDiagPattern, DiagCrossPattern
}
 Fill styles. More...
 
enum  ItemType {
  Frame = 1, Array, Function, ParFunction,
  Spline, Array3D, Function3D, Legend,
  Text, Line, Arrow, Arc,
  Rectangle, Ellipse, Image, ScaleBar
}
 Item types. More...
 
enum  PenType { FramePen, GridPen, DataPen }
 Pen types. More...
 
enum  Symbol {
  Invisible = -17, FilledOctagon, FilledHourglass, FilledTriangle,
  FilledSquare, FilledDiamond, FilledCircle, Umbrella,
  Ypsilon, Plus, Cross, OpenOctagon,
  OpenHourglass, OpenTriangle, OpenSquare, OpenDiamond,
  Dot, OpenCircle, SolidLine, DashLine1,
  DashLine2, DotLine1, DashLine3, DashDotLine,
  DashLine4, DashLine5, DotLine2
}
 Symbol types. More...
 
- Public Attributes inherited from QGraphicsItem
typedef GraphicsItemFlags
 
- Static Protected Member Functions inherited from KplItem
static double parentWidth (const QGraphicsItem *item)
 Returns width of item's parent frame or width of scene if the item has no parent item. More...
 
static double penWidthFactor (PenType penType)
 Returns factor to calculate pen width from frame width. More...
 
- Static Protected Attributes inherited from KplItem
static double m_dashOffset
 

Detailed Description

Scaled item class.

Base class for array and function items.

Author
Werner Stille

Constructor & Destructor Documentation

ScaledItem::ScaledItem ( )

Constructor.

ScaledItem::ScaledItem ( const ScaledItem a)

Copy constructor.

Parameters
asource item.
ScaledItem::ScaledItem ( const KConfigGroup *  plo,
Symbol  symbol,
unsigned  color,
QGraphicsItem parent 
)

Constructor.

Initializes corresponding to plot file.

Parameters
plopointer to KConfigGroup object containing item data.
symboldefault symbol type.
colordefault color.
parentpointer to parent item.
ScaledItem::ScaledItem ( FillStyle  fillStyle,
Symbol  symbol,
unsigned  color,
double  fx,
double  fy,
double  xOffset,
double  yOffset,
double  relSize,
QGraphicsItem parent 
)

Constructor.

Initializes corresponding to arguments.

Parameters
fillStylefill style.
symbolsymbol type.
colorcolor.
fxnormalization factor for x values.
fynormalization factor for y values.
xOffsetoffset for x values.
yOffsetoffset for x values.
relSizerelative size.
parentpointer to parent item.
virtual ScaledItem::~ScaledItem ( )
virtual

Destructor.

Member Function Documentation

unsigned ScaledItem::color ( ) const
inline

Returns color.

static void ScaledItem::exponent ( double  a,
int &  iExp,
double &  f 
)
static

Calculates normalization factor.

Parameters
aabsolute double value.
iExpreference to logarithm of normalization factor.
freference to normalization factor.
FillStyle ScaledItem::fillStyle ( ) const
inline

Returns fill style.

bool ScaledItem::isNormalized ( double  fx,
double  fy 
) const
inline

Checks if both normalization factors are equal to given values.

Parameters
fxnormalization factor for x values.
fynormalization factor for y values.
Returns
true when both normalization factors are equal to given values.
double ScaledItem::length ( const double *  x,
const double *  y,
int  n 
) const
protected

Calculates line length.

Parameters
xarray with x values.
yarray with y values.
nnumber of values.
Returns
length in pixel units.
static bool ScaledItem::limits ( double &  xMin,
double &  xMax,
const double *  values,
int  n 
)
static

Calculates minimum and maximum values of an array.

Parameters
xMinreference to minimum value.
xMaxreference to maximum value.
valuesdouble array.
nsize of array.
Returns
true for xmax > xmin.
void ScaledItem::normalize ( double  fx,
double  fy 
)
inline

Sets normalization factors.

Parameters
fxnormalization factor for x values.
fynormalization factor for y values.
double ScaledItem::normX ( ) const
inline

Returns normalization factor for x values.

double ScaledItem::normY ( ) const
inline

Returns normalization factor for y values.

QPixmap ScaledItem::pixmap ( ) const

Returns decoration pixmap for item list.

void ScaledItem::plotArray ( QPainter painter,
const double *  x,
const double *  y,
int  n 
) const
protected

Plots array.

Parameters
painterpointer to QPainter object, 0 for calculating bounding box.
xarray with x values.
yarray with y values.
nnumber of values.
void ScaledItem::readPlo ( const KConfigGroup *  plo,
Symbol  symbol,
unsigned  color 
)

Initializes corresponding to plot file.

Parameters
plopointer to KSimpleConfig object containing item data.
symboldefault symbol type.
colordefault color.
void ScaledItem::setColor ( unsigned  color)
inline

Sets color.

Parameters
colorcolor.
void ScaledItem::setFillStyle ( FillStyle  style)
inline

Sets fill style.

Parameters
stylefill style.
void ScaledItem::setNormX ( double  fx)
inline

Sets normalization factor for x values.

Parameters
fxnormalization factor.
void ScaledItem::setNormY ( double  fy)
inline

Sets normalization factor for y values.

Parameters
fynormalization factor.
void ScaledItem::setProperties ( const QTransform m)

Sets properties according to transformation matrix.

Parameters
mtransformation matrix.
void ScaledItem::setProperties ( )
protected

Sets properties according to transformation matrix.

void ScaledItem::setSize ( )

Sets size according to transformation matrix.

void ScaledItem::setSymbol ( Symbol  symbol)
inline

Sets symbol type.

Parameters
symbolsymbol type.
void ScaledItem::setXOffset ( double  xOffset)
inline

Sets offset for x values.

Parameters
xOffsetoffset.
void ScaledItem::setYOffset ( double  yOffset)
inline

Sets offset for y values.

Parameters
yOffsetoffset.
Symbol ScaledItem::symbol ( ) const
inline

Returns symbol type.

void ScaledItem::update ( )

Applies changes and forces redrawing.

void ScaledItem::updateGeometry ( )

Updates geometry.

void ScaledItem::writePlo ( KConfigGroup *  plo,
bool  visible 
) const

Writes into plot file.

Parameters
ploKConfigGroup object.
visibletrue for visible item.
double ScaledItem::xOffset ( ) const
inline

Returns offset for x values.

double ScaledItem::yOffset ( ) const
inline

Returns offset for y values.


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