Responsible for drawing LINE charts. More...

#include <gobchartslineview.h>

Inheritance diagram for GobChartsLineView:

Public Member Functions
	GobChartsLineView (QWidget *parent=0)
	Constructor.

virtual	~GobChartsLineView ()
	Destructor.

Public Member Functions inherited from GobChartsView
virtual	~GobChartsView ()
	Constructor.

void	drawChart ()
	Displays the chosen chart type.

void	legendItemSelected (const QString &text)
	Informs the view that a legend of name "text" has been selected.

void	setStateXML (const QDomNode &viewNode, const QDomNode &dataNode, bool includeData=true)
	Set the chart values when loading from file.

QString	getStateXML (bool includeData=true) const
	Returns the chart content and settings as an XML QString.

QRect	visualRect (const QModelIndex &index) const
	Re-implemented from QAbstractItemView.

QModelIndex	indexAt (const QPoint &point) const
	Re-implemented from QAbstractItemView.

void	scrollTo (const QModelIndex &index, ScrollHint hint=EnsureVisible)
	Re-implemented from QAbstractItemView.

void	setModel (QAbstractItemModel *model)
	Re-implemented from QAbstractItemView.

Protected Member Functions
void	generateGraphicsItems ()
	Graphics (chart) items.

bool	needsGrid () const
	Grid required (returns "true").

QString	typeInteger () const
	Type integer is "2".

Protected Member Functions inherited from GobChartsView
	GobChartsView (QWidget *parent=0)
	Destructor.

bool	useFixedColour () const
	Returns "true" if the chart colour is fixed or "false" if random colours must be generated.

QColor	fixedColour () const
	If the chart colour is fixed, this function returns the colour used to draw the chart items.

void	addToGraphItemsContainer (const QModelIndex &valueIndex, QGraphicsItem *item, const QString &legendText)
	Stores dynamically created graphics items.

int	nrValidItems () const
	Returns the number of valid rows in the data model.

QList< int >	validRowList () const
	Returns a list of valid data row numbers.

QString	category (int row) const
	Returns the category name corresponding to "row" in validRowList()

qreal	value (int row) const
	Returns the data value corresponding to "row" in validRowList()

const QRectF &	innerSceneRectF () const
	Returns the rectangle corresponding to the "inner scene".

bool	isWithinAllowedRange (qreal value) const
	Determines whether or not a data value falls within the allowed data range.

qreal	gridWidth () const
	Returns the grid width.

qreal	stripSpace (qreal perc) const
	Calculates the amount of space at the top of the view that is "extra".

qreal	totalValue () const
	Returns the total, consolidated value of all category values.

QModelIndex	moveCursor (QAbstractItemView::CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
	Re-implemented from QAbstractItemView.

QRegion	visualRegionForSelection (const QItemSelection &selection) const
	Re-implemented from QAbstractItemView.

int	horizontalOffset () const
	Re-implemented from QAbstractItemView.

int	verticalOffset () const
	Re-implemented from QAbstractItemView.

bool	isIndexHidden (const QModelIndex &index) const
	Re-implemented from QAbstractItemView.

void	setSelection (const QRect &rect, QItemSelectionModel::SelectionFlags command)
	Re-implemented from QAbstractItemView.

void	keyPressEvent (QKeyEvent *event)
	Re-implemented from QAbstractItemView.

Additional Inherited Members
Public Slots inherited from GobChartsView
void	setLabelDetails (GobChartsLabel label, const QString &text, const QFont &font, const QColor &colour, Qt::Alignment align)
	Set chart label.

void	requestLabelDetails (GobChartsLabel label)
	Request a specific label's settings.

void	setGridLineStyle (Qt::PenStyle style)
	Grid line style.

void	setHorizontalGridLines (bool set, int number)
	Set horizontal grid lines.

void	setVerticalGridLines (bool set, int number)
	Set horizontal grid lines.

void	setGridColour (QColor colour)
	Set grid colour.

void	setFixedColour (QColor colour)
	Fix the chart colour.

void	setRandomColours ()
	Use different colours.

void	setAllowedDataRange (qreal lowerBoundary, qreal upperBoundary)
	Limit data range.

void	setShowTotalRange ()
	Show total data range.

void	setDebugLoggingOn (bool logging)
	Debug log.

Signals inherited from GobChartsView
void	lastDebugLogMsg (QString)
	Debug messages.

void	emitLabelDetails (GobChartsLabel label, const QString &text, const QFont &font, const QColor &colour, Qt::Alignment align)
	Obtain label details.

void	createLegendItem (const QColor &colour, const QString &text)
	Emitted when a new graphics item was created.

void	clearLegend ()
	Emitted when a chart is redrawn and its graphics items are reset.

void	highLightLegendItem (const QString &text)
	Emitted when a graphics item is selected.

Protected Types inherited from GobChartsView
enum	GobChartsColumn { CATEGORY, VALUE }
	Expected data model columns. More...

Protected Slots inherited from GobChartsView
void	debugLog (QString msg)
	Log debug messages.

void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight)
	Re-implemented from QAbstractItemView.

void	rowsInserted (const QModelIndex &parent, int start, int end)
	Re-implemented from QAbstractItemView.

void	rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
	Re-implemented from QAbstractItemView.

void	mousePressEvent (QMouseEvent *p_event)
	Re-implemented from QAbstractItemView.

Detailed Description

Responsible for drawing LINE charts.

This class implements the following GobChartsView pure virtual functions:

Definition at line 39 of file gobchartslineview.h.

Member Function Documentation

void GobChartsLineView::generateGraphicsItems ( )

protectedvirtual

Graphics (chart) items.

This function generates the chart's line segments and uses the various categories' values to determine each segment's relative size with respect to each other and the confines of the available space.

Implements GobChartsView.

Definition at line 51 of file gobchartslineview.cpp.

bool GobChartsLineView::needsGrid ( ) const

protectedvirtual

Grid required (returns "true").

Implements GobChartsView.

Definition at line 126 of file gobchartslineview.cpp.

QString GobChartsLineView::typeInteger ( ) const

protectedvirtual

Type integer is "2".

Implements GobChartsView.

Definition at line 133 of file gobchartslineview.cpp.

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

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation