KD Chart 2  [rev.2.7]
Public Types | Public Slots | Signals | Public Member Functions | Protected Member Functions | List of all members
KDGantt::DateTimeGrid Class Reference

#include <kdganttdatetimegrid.h>

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Public Types

enum  Scale {
  ScaleAuto,
  ScaleHour,
  ScaleDay,
  ScaleWeek,
  ScaleMonth,
  ScaleUserDefined
}
 

Public Slots

virtual void setModel (QAbstractItemModel *model)
 
virtual void setRootIndex (const QModelIndex &idx)
 

Signals

void gridChanged ()
 

Public Member Functions

 DateTimeGrid ()
 
qreal dayWidth () const
 
QSet< Qt::DayOfWeek > freeDays () const
 
QBrush freeDaysBrush () const
 
bool isSatisfiedConstraint (const Constraint &c) const
 
bool mapFromChart (const Span &span, const QModelIndex &idx, const QList< Constraint > &constraints=QList< Constraint >()) const override
 
QVariant mapFromChart (qreal x) const override
 
qreal mapFromDateTime (const QDateTime &dt) const
 
Span mapToChart (const QModelIndex &idx) const override
 
qreal mapToChart (const QVariant &value) const override
 
QDateTime mapToDateTime (qreal x) const
 
QAbstractItemModel * model () const
 
QBrush noInformationBrush () const
 
void paintGrid (QPainter *painter, const QRectF &sceneRect, const QRectF &exposedRect, AbstractRowController *rowController=0, QWidget *widget=0) override
 
void paintHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, QWidget *widget=0) override
 
QModelIndex rootIndex () const
 
bool rowSeparators () const
 
Scale scale () const
 
void setDayWidth (qreal)
 
void setFreeDays (const QSet< Qt::DayOfWeek > &fd)
 
void setFreeDaysBrush (const QBrush brush)
 
void setNoInformationBrush (const QBrush &brush)
 
void setRowSeparators (bool enable)
 
void setScale (Scale s)
 
void setStartDateTime (const QDateTime &dt)
 
void setUserDefinedLowerScale (DateTimeScaleFormatter *lower)
 
void setUserDefinedUpperScale (DateTimeScaleFormatter *upper)
 
void setWeekStart (Qt::DayOfWeek)
 
QDateTime startDateTime () const
 
DateTimeScaleFormatteruserDefinedLowerScale () const
 
DateTimeScaleFormatteruserDefinedUpperScale () const
 
Qt::DayOfWeek weekStart () const
 
 ~DateTimeGrid () override
 

Protected Member Functions

QRectF computeRect (const QDateTime &from, const QDateTime &to, const QRectF &rect) const
 Return the rectangle that represents the date-range. More...
 
QPair< QDateTime, QDateTime > dateTimeRange (const QRectF &rect) const
 Return a date-range represented by the rectangle. More...
 
void drawBackground (QPainter *paint, const QRectF &rect) override
 
virtual void drawDayBackground (QPainter *painter, const QRectF &rect, const QDate &date)
 
virtual void drawDayForeground (QPainter *painter, const QRectF &rect, const QDate &date)
 
void drawForeground (QPainter *paint, const QRectF &rect) override
 
virtual void paintDayScaleHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, QWidget *widget=0)
 
virtual void paintHourScaleHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, QWidget *widget=0)
 
virtual void paintMonthScaleHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, QWidget *widget=0)
 
virtual void paintUserDefinedHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, const DateTimeScaleFormatter *formatter, QWidget *widget=0)
 
virtual void paintWeekScaleHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, QWidget *widget=0)
 

Detailed Description

This implementation of AbstractGrid works with QDateTime and shows days and week numbers in the header

Definition at line 35 of file kdganttdatetimegrid.h.

Member Enumeration Documentation

Enumerator
ScaleAuto 
ScaleHour 
ScaleDay 
ScaleWeek 
ScaleMonth 
ScaleUserDefined 

Definition at line 40 of file kdganttdatetimegrid.h.

Constructor & Destructor Documentation

DateTimeGrid::DateTimeGrid ( )

Definition at line 289 of file kdganttdatetimegrid.cpp.

DateTimeGrid::~DateTimeGrid ( )
override

Definition at line 293 of file kdganttdatetimegrid.cpp.

Member Function Documentation

QRectF DateTimeGrid::computeRect ( const QDateTime &  from,
const QDateTime &  to,
const QRectF &  rect 
) const
protected

Return the rectangle that represents the date-range.

Definition at line 1183 of file kdganttdatetimegrid.cpp.

References d.

QPair< QDateTime, QDateTime > DateTimeGrid::dateTimeRange ( const QRectF &  rect) const
protected

Return a date-range represented by the rectangle.

Definition at line 1193 of file kdganttdatetimegrid.cpp.

References d.

qreal DateTimeGrid::dayWidth ( ) const
Returns
The width in pixels for each day in the grid.

The default is 100 pixels.

Definition at line 321 of file kdganttdatetimegrid.cpp.

References d.

Referenced by drawBackground(), drawForeground(), KDAB_SCOPED_UNITTEST_SIMPLE(), mapFromChart(), paintDayScaleHeader(), paintGrid(), paintHourScaleHeader(), paintMonthScaleHeader(), paintUserDefinedHeader(), and paintWeekScaleHeader().

void DateTimeGrid::drawBackground ( QPainter *  paint,
const QRectF &  rect 
)
overrideprotectedvirtual
Todo:
document this function

Reimplemented from KDGantt::AbstractGrid.

Definition at line 1204 of file kdganttdatetimegrid.cpp.

References d, dayWidth(), and drawDayBackground().

void DateTimeGrid::drawDayBackground ( QPainter *  painter,
const QRectF &  rect,
const QDate &  date 
)
protectedvirtual

Draw the background for a day.

Definition at line 1165 of file kdganttdatetimegrid.cpp.

Referenced by drawBackground().

void DateTimeGrid::drawDayForeground ( QPainter *  painter,
const QRectF &  rect,
const QDate &  date 
)
protectedvirtual

Draw the foreground for a day.

Definition at line 1174 of file kdganttdatetimegrid.cpp.

Referenced by drawForeground().

void DateTimeGrid::drawForeground ( QPainter *  paint,
const QRectF &  rect 
)
overrideprotectedvirtual
Todo:
document this function

Reimplemented from KDGantt::AbstractGrid.

Definition at line 1247 of file kdganttdatetimegrid.cpp.

References d, dayWidth(), and drawDayForeground().

QSet< Qt::DayOfWeek > DateTimeGrid::freeDays ( ) const
Returns
The days marked as free in the grid.

Definition at line 454 of file kdganttdatetimegrid.cpp.

References d.

Referenced by mapFromChart().

QBrush DateTimeGrid::freeDaysBrush ( ) const
Returns
The brush used to paint free days.

Definition at line 469 of file kdganttdatetimegrid.cpp.

References d.

Referenced by mapFromChart().

void KDGantt::AbstractGrid::gridChanged ( )
signalinherited
bool AbstractGrid::isSatisfiedConstraint ( const Constraint c) const
inherited
Returns
true if the startpoint is before the endpoint of the constraint c.

Definition at line 86 of file kdganttabstractgrid.cpp.

References KDGantt::Span::end(), KDGantt::Constraint::endIndex(), KDGantt::AbstractGrid::mapToChart(), and KDGantt::Constraint::startIndex().

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE(), and mapFromChart().

bool DateTimeGrid::mapFromChart ( const Span span,
const QModelIndex &  idx,
const QList< Constraint > &  constraints = QList<Constraint>() 
) const
overridevirtual

Maps the supplied Span to QDateTimes, and puts them as start time and end time for the supplied index.

Parameters
spanThe span used to map from.
idxThe index used for setting the start time and end time in the model.
constraintsA list of hard constraints to match against the start time and end time mapped from the span.
Returns
true if the start time and time was successfully added to the model, or false if unsucessful. Also returns false if any of the constraints isn't satisfied. That is, if the start time of the constrained index is before the end time of the dependency index, or the end time of the constrained index is before the start time of the dependency index.

Implements KDGantt::AbstractGrid.

Definition at line 587 of file kdganttdatetimegrid.cpp.

References KDGantt::DateTimeScaleFormatter::currentRangeBegin(), d, dayWidth(), KDGantt::Constraint::endIndex(), KDGantt::EndTimeRole, freeDays(), freeDaysBrush(), KDGantt::AbstractGrid::isSatisfiedConstraint(), KDGantt::Span::length(), KDGantt::AbstractGrid::model(), KDGantt::DateTimeScaleFormatter::nextRangeBegin(), scale(), ScaleDay, ScaleHour, ScaleMonth, ScaleWeek, KDGantt::Span::start(), KDGantt::Constraint::startIndex(), KDGantt::StartTimeRole, KDGantt::Constraint::type(), KDGantt::Constraint::TypeHard, and weekStart().

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

QVariant DateTimeGrid::mapFromChart ( qreal  x) const
overridevirtual
Parameters
xThe x value get the datetime for.
Returns
The datetime corresponding to x or an invalid datetime if x cannot be mapped.

Reimplemented from KDGantt::AbstractGrid.

Definition at line 520 of file kdganttdatetimegrid.cpp.

References d.

qreal DateTimeGrid::mapFromDateTime ( const QDateTime &  dt) const

Maps a given point in time dt to an X value in the scene.

Definition at line 328 of file kdganttdatetimegrid.cpp.

References d.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

Span DateTimeGrid::mapToChart ( const QModelIndex &  idx) const
overridevirtual
Parameters
idxThe index to get the Span for.
Returns
The start and end pixels, in a Span, of the specified index.

Implements KDGantt::AbstractGrid.

Definition at line 528 of file kdganttdatetimegrid.cpp.

References d, KDGantt::EndTimeRole, KDGantt::AbstractGrid::model(), and KDGantt::StartTimeRole.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

qreal DateTimeGrid::mapToChart ( const QVariant &  value) const
overridevirtual
Parameters
valueThe datetime to get the x value for.
Returns
The x value corresponding to value or -1.0 if value is not a datetime variant.

Reimplemented from KDGantt::AbstractGrid.

Definition at line 506 of file kdganttdatetimegrid.cpp.

References d.

QDateTime DateTimeGrid::mapToDateTime ( qreal  x) const

Maps a given X value x in scene coordinates to a point in time.

Definition at line 335 of file kdganttdatetimegrid.cpp.

References d.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

QAbstractItemModel * AbstractGrid::model ( ) const
inherited
Returns
The QAbstractItemModel used by this grid

Definition at line 64 of file kdganttabstractgrid.cpp.

References d.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE(), mapFromChart(), mapToChart(), and KDGantt::AbstractGrid::setModel().

QBrush DateTimeGrid::noInformationBrush ( ) const
Returns
the brush used to mark rows with no information.

Definition at line 497 of file kdganttdatetimegrid.cpp.

References d.

void DateTimeGrid::paintDayScaleHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
QWidget widget = 0 
)
protectedvirtual

Paints the day scale header.

See also
paintHeader()

Definition at line 1050 of file kdganttdatetimegrid.cpp.

References d, and dayWidth().

Referenced by paintHeader().

void DateTimeGrid::paintGrid ( QPainter *  painter,
const QRectF &  sceneRect,
const QRectF &  exposedRect,
AbstractRowController rowController = 0,
QWidget widget = 0 
)
overridevirtual

Implement this to paint the background of the view – typically with some grid lines.

Parameters
painter– the QPainter to paint with.
sceneRect– the total bounding rectangle of the scene.
exposedRect– the rectangle that needs to be painted.
rowController– the row controller used by the view – may be 0.
widget– the widget used by the view – may be 0.

Implements KDGantt::AbstractGrid.

Definition at line 773 of file kdganttdatetimegrid.cpp.

References d, dayWidth(), KDGantt::AbstractRowController::indexAbove(), KDGantt::AbstractRowController::indexAt(), KDGantt::AbstractRowController::indexBelow(), KDGantt::ItemTypeRole, KDGantt::Span::length(), KDGantt::AbstractRowController::rowGeometry(), scale(), ScaleAuto, ScaleDay, ScaleHour, ScaleMonth, ScaleUserDefined, ScaleWeek, and KDGantt::Span::start().

void DateTimeGrid::paintHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
QWidget widget = 0 
)
overridevirtual

Implement this to paint the header part of the view.

Parameters
painter– the QPainter to paint with.
headerRect– the total rectangle occupied by the header.
exposedRect– the rectangle that needs to be painted.
offset– the horizontal scroll offset of the view.
widget– the widget used by the view – may be 0.

Implements KDGantt::AbstractGrid.

Definition at line 874 of file kdganttdatetimegrid.cpp.

References d, paintDayScaleHeader(), paintHourScaleHeader(), paintMonthScaleHeader(), paintUserDefinedHeader(), paintWeekScaleHeader(), scale(), ScaleAuto, ScaleDay, ScaleHour, ScaleMonth, ScaleUserDefined, ScaleWeek, startDateTime(), and KDGantt::DateTimeScaleFormatter::text().

void DateTimeGrid::paintHourScaleHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
QWidget widget = 0 
)
protectedvirtual

Paints the hour scale header.

See also
paintHeader()

Definition at line 1009 of file kdganttdatetimegrid.cpp.

References d, and dayWidth().

Referenced by paintHeader().

void DateTimeGrid::paintMonthScaleHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
QWidget widget = 0 
)
protectedvirtual

Paints the week scale header.

See also
paintHeader()

Definition at line 1129 of file kdganttdatetimegrid.cpp.

References d, and dayWidth().

Referenced by paintHeader().

void DateTimeGrid::paintUserDefinedHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
const DateTimeScaleFormatter formatter,
QWidget widget = 0 
)
protectedvirtual
void DateTimeGrid::paintWeekScaleHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
QWidget widget = 0 
)
protectedvirtual

Paints the week scale header.

See also
paintHeader()

Definition at line 1090 of file kdganttdatetimegrid.cpp.

References d, and dayWidth().

Referenced by paintHeader().

QModelIndex AbstractGrid::rootIndex ( ) const
inherited
Returns
the current root index for this grid

Definition at line 78 of file kdganttabstractgrid.cpp.

References d.

bool DateTimeGrid::rowSeparators ( ) const
Returns
true if row separators are used.

Definition at line 475 of file kdganttdatetimegrid.cpp.

References d.

DateTimeGrid::Scale DateTimeGrid::scale ( ) const
Returns
The scale used to paint the grid.

The default is ScaleAuto, which means the day scale will be used as long as the day width is less or equal to 500.

See also
Scale

Definition at line 377 of file kdganttdatetimegrid.cpp.

References d.

Referenced by mapFromChart(), paintGrid(), and paintHeader().

void DateTimeGrid::setDayWidth ( qreal  w)
Parameters
wThe width in pixels for each day in the grid.

The signal gridChanged() is emitted after the day width is changed.

Definition at line 344 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

void DateTimeGrid::setFreeDays ( const QSet< Qt::DayOfWeek > &  fd)
Parameters
fdA set of days to mark as free in the grid.

Free days are filled with the alternate base brush of the palette used by the view. The signal gridChanged() is emitted after the free days are changed.

Definition at line 447 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

void DateTimeGrid::setFreeDaysBrush ( const QBrush  brush)

Sets the brush to use to paint free days.

Definition at line 461 of file kdganttdatetimegrid.cpp.

References d.

void AbstractGrid::setModel ( QAbstractItemModel *  model)
virtualslotinherited

Sets the QAbstractItemModel used by this grid implementation. This is called by the view, you should never need to call this from client code.

Definition at line 58 of file kdganttabstractgrid.cpp.

References d, and KDGantt::AbstractGrid::model().

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

void DateTimeGrid::setNoInformationBrush ( const QBrush &  brush)

Sets the brush used to display rows where no data is found. Default is a red pattern. If set to QBrush() rows with no information will not be marked.

Definition at line 489 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

void AbstractGrid::setRootIndex ( const QModelIndex &  idx)
virtualslotinherited

Sets the root index used by this grid implementation. This is called by the view, you should never need to call this from client code.

Definition at line 72 of file kdganttabstractgrid.cpp.

References d.

void DateTimeGrid::setRowSeparators ( bool  enable)
Parameters
enableWhether to use row separators or not.

Definition at line 480 of file kdganttdatetimegrid.cpp.

References d.

void DateTimeGrid::setScale ( Scale  s)
Parameters
sThe scale to be used to paint the grid.

The signal gridChanged() is emitted after the scale has changed.

See also
Scale

Following example demonstrates how to change the format of the header to use a date-scaling with the header-label displayed with the ISO date-notation.

DateTimeScaleFormatter* formatter = new DateTimeScaleFormatter(DateTimeScaleFormatter::Day, QString::fromLatin1("yyyy-MMMM-dddd"));
grid->setUserDefinedUpperScale( formatter );
grid->setUserDefinedLowerScale( formatter );

Definition at line 365 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

void DateTimeGrid::setStartDateTime ( const QDateTime &  dt)
Parameters
dtThe start date of the grid. It is used as the beginning of the horizontal scrollbar in the view.

Emits gridChanged() after the start date has changed.

Definition at line 311 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

void DateTimeGrid::setUserDefinedLowerScale ( DateTimeScaleFormatter lower)

Sets the scale formatter for the lower part of the header to the user defined formatter to lower. The DateTimeGrid object takes ownership of the formatter, which has to be allocated with new.

You have to set the scale to ScaleUserDefined for this setting to take effect.

See also
DateTimeScaleFormatter

Definition at line 389 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

void DateTimeGrid::setUserDefinedUpperScale ( DateTimeScaleFormatter upper)

Sets the scale formatter for the upper part of the header to the user defined formatter to upper. The DateTimeGrid object takes ownership of the formatter, which has to be allocated with new.

You have to set the scale to ScaleUserDefined for this setting to take effect.

See also
DateTimeScaleFormatter

Definition at line 403 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

void DateTimeGrid::setWeekStart ( Qt::DayOfWeek  ws)
Parameters
wsThe start day of the week.

A solid line is drawn on the grid to mark the beginning of a new week. Emits gridChanged() after the start day has changed.

Definition at line 429 of file kdganttdatetimegrid.cpp.

References d, and KDGantt::AbstractGrid::gridChanged().

QDateTime DateTimeGrid::startDateTime ( ) const
Returns
The QDateTime used as start date for the grid.

The default is three days before the current date.

Definition at line 301 of file kdganttdatetimegrid.cpp.

References d.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE(), and paintHeader().

DateTimeScaleFormatter * DateTimeGrid::userDefinedLowerScale ( ) const
Returns
The DateTimeScaleFormatter being used to render the lower scale.

Definition at line 412 of file kdganttdatetimegrid.cpp.

References d.

DateTimeScaleFormatter * DateTimeGrid::userDefinedUpperScale ( ) const
Returns
The DateTimeScaleFormatter being used to render the upper scale.

Definition at line 419 of file kdganttdatetimegrid.cpp.

References d.

Qt::DayOfWeek DateTimeGrid::weekStart ( ) const
Returns
The start day of the week

Definition at line 436 of file kdganttdatetimegrid.cpp.

References d.

Referenced by mapFromChart().


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

Klarälvdalens Datakonsult AB (KDAB)
"The Qt, C++ and OpenGL Experts"
https://www.kdab.com/

https://www.kdab.com/development-resources/qt-tools/kd-chart/