KD Chart 2  [rev.2.5]
Public Types | Public Slots | Signals | Public Member Functions | Protected Member Functions
KDGantt::DateTimeGrid Class Reference

#include <kdganttdatetimegrid.h>

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List of all members.

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
QVariant mapFromChart (qreal x) const
qreal mapFromDateTime (const QDateTime &dt) const
Span mapToChart (const QModelIndex &idx) const
qreal mapToChart (const QVariant &value) const
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)
void paintHeader (QPainter *painter, const QRectF &headerRect, const QRectF &exposedRect, qreal offset, QWidget *widget=0)
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
virtual ~DateTimeGrid ()

Protected Member Functions

QRectF computeRect (const QDateTime &from, const QDateTime &to, const QRectF &rect) const
QPair< QDateTime, QDateTime > dateTimeRange (const QRectF &rect) const
void drawBackground (QPainter *paint, const QRectF &rect)
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)
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 288 of file kdganttdatetimegrid.cpp.

DateTimeGrid::~DateTimeGrid ( ) [virtual]

Definition at line 292 of file kdganttdatetimegrid.cpp.


Member Function Documentation

QRectF DateTimeGrid::computeRect ( const QDateTime &  from,
const QDateTime &  to,
const QRectF &  rect 
) const [protected]
Todo:
document this function

Definition at line 1185 of file kdganttdatetimegrid.cpp.

References d.

QPair< QDateTime, QDateTime > DateTimeGrid::dateTimeRange ( const QRectF &  rect) const [protected]
Todo:
document this function

Definition at line 1196 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 320 of file kdganttdatetimegrid.cpp.

References d.

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

void DateTimeGrid::drawBackground ( QPainter *  paint,
const QRectF &  rect 
) [protected, virtual]
Todo:
document this function

Reimplemented from KDGantt::AbstractGrid.

Definition at line 1207 of file kdganttdatetimegrid.cpp.

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

void DateTimeGrid::drawDayBackground ( QPainter *  painter,
const QRectF &  rect,
const QDate &  date 
) [protected, virtual]
Todo:
document this function

Definition at line 1165 of file kdganttdatetimegrid.cpp.

Referenced by drawBackground().

void DateTimeGrid::drawDayForeground ( QPainter *  painter,
const QRectF &  rect,
const QDate &  date 
) [protected, virtual]
Todo:
document this function

Definition at line 1175 of file kdganttdatetimegrid.cpp.

Referenced by drawForeground().

void DateTimeGrid::drawForeground ( QPainter *  paint,
const QRectF &  rect 
) [protected, virtual]
Todo:
document this function

Reimplemented from KDGantt::AbstractGrid.

Definition at line 1250 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 453 of file kdganttdatetimegrid.cpp.

References d.

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

Definition at line 468 of file kdganttdatetimegrid.cpp.

References d.

void KDGantt::AbstractGrid::gridChanged ( ) [signal, inherited]
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 [virtual]

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 586 of file kdganttdatetimegrid.cpp.

References d, KDGantt::Constraint::endIndex(), KDGantt::EndTimeRole, KDGantt::AbstractGrid::isSatisfiedConstraint(), KDGantt::Span::length(), KDGantt::AbstractGrid::model(), KDGantt::Span::start(), KDGantt::Constraint::startIndex(), KDGantt::StartTimeRole, KDGantt::Constraint::type(), and KDGantt::Constraint::TypeHard.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

QVariant DateTimeGrid::mapFromChart ( qreal  x) const [virtual]
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 519 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 327 of file kdganttdatetimegrid.cpp.

References d.

Referenced by KDAB_SCOPED_UNITTEST_SIMPLE().

Span DateTimeGrid::mapToChart ( const QModelIndex &  idx) const [virtual]
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 527 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 [virtual]
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 505 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 334 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 mapFromChart(), mapToChart(), and KDGantt::AbstractGrid::setModel().

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

Definition at line 496 of file kdganttdatetimegrid.cpp.

References d.

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

Paints the day scale header.

See also:
paintHeader()

Definition at line 1049 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 
) [virtual]

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 772 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 
) [virtual]

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 873 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 
) [protected, virtual]

Paints the hour scale header.

See also:
paintHeader()

Definition at line 1008 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 
) [protected, virtual]

Paints the week scale header.

See also:
paintHeader()

Definition at line 1128 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 
) [protected, virtual]
void DateTimeGrid::paintWeekScaleHeader ( QPainter *  painter,
const QRectF &  headerRect,
const QRectF &  exposedRect,
qreal  offset,
QWidget widget = 0 
) [protected, virtual]

Paints the week scale header.

See also:
paintHeader()

Definition at line 1089 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 474 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 376 of file kdganttdatetimegrid.cpp.

References d.

Referenced by 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 343 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 446 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 460 of file kdganttdatetimegrid.cpp.

References d.

void AbstractGrid::setModel ( QAbstractItemModel *  model) [virtual, slot, inherited]

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 488 of file kdganttdatetimegrid.cpp.

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

void AbstractGrid::setRootIndex ( const QModelIndex &  idx) [virtual, slot, inherited]

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 479 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 );
 grid->setScale( DateTimeGrid::ScaleUserDefined ); 

Definition at line 364 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 310 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 388 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 402 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 428 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 300 of file kdganttdatetimegrid.cpp.

References d.

Referenced by paintHeader().

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

Definition at line 411 of file kdganttdatetimegrid.cpp.

References d.

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

Definition at line 418 of file kdganttdatetimegrid.cpp.

References d.

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

Definition at line 435 of file kdganttdatetimegrid.cpp.

References d.


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