TimeValueLayer Class Reference

#include <TimeValueLayer.h>

Inherits SingleColourLayer.

Inheritance diagram for TimeValueLayer:

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List of all members.

Detailed Description

Definition at line 28 of file TimeValueLayer.h.

Public Types

enum  PlotStyle {
  PlotPoints, PlotStems, PlotConnectedPoints, PlotLines,
  PlotCurve, PlotSegmentation
}
enum  VerticalScale { AutoAlignScale, LinearScale, LogScale, PlusMinusOneScale }
enum  VerticalPosition { PositionTop, PositionMiddle, PositionBottom }
enum  SnapType { SnapLeft, SnapRight, SnapNearest, SnapNeighbouring }
enum  ColourSignificance {
  ColourAbsent, ColourIrrelevant, ColourDistinguishes, ColourAndBackgroundSignificant,
  ColourHasMeaningfulValue
}
enum  PropertyType {
  ToggleProperty, RangeProperty, ValueProperty, ColourProperty,
  UnitsProperty, InvalidProperty
}
typedef QString PropertyName
typedef std::vector< PropertyNamePropertyList

Public Slots

virtual void setProperty (const PropertyName &, int value)
 Set a property.
virtual void setProperty (QString nameString, QString valueString)
 Set a property using a fuzzy match.
void showLayer (View *, bool show)
virtual void setPropertyWithCommand (const PropertyName &, int value)
 Set a property using a command, supporting undo and redo.
virtual void setPropertyWithCommand (QString nameString, QString valueString)
 As above, but using a command.

Signals

void modelChanged ()
void modelChanged (size_t startFrame, size_t endFrame)
void modelCompletionChanged ()
void modelAlignmentCompletionChanged ()
void modelReplaced ()
void layerParametersChanged ()
void layerParameterRangesChanged ()
void layerMeasurementRectsChanged ()
void layerNameChanged ()
void verticalZoomChanged ()
void propertyChanged (PropertyContainer::PropertyName)

Public Member Functions

 TimeValueLayer ()
virtual void paint (View *v, QPainter &paint, QRect rect) const
virtual int getVerticalScaleWidth (View *v, QPainter &) const
virtual void paintVerticalScale (View *v, QPainter &paint, QRect rect) const
virtual QString getFeatureDescription (View *v, QPoint &) const
virtual bool snapToFeatureFrame (View *v, int &frame, size_t &resolution, SnapType snap) const
 Adjust the given frame to snap to the nearest feature, if possible.
virtual void drawStart (View *v, QMouseEvent *)
virtual void drawDrag (View *v, QMouseEvent *)
virtual void drawEnd (View *v, QMouseEvent *)
virtual void eraseStart (View *v, QMouseEvent *)
virtual void eraseDrag (View *v, QMouseEvent *)
virtual void eraseEnd (View *v, QMouseEvent *)
virtual void editStart (View *v, QMouseEvent *)
virtual void editDrag (View *v, QMouseEvent *)
virtual void editEnd (View *v, QMouseEvent *)
virtual bool editOpen (View *v, QMouseEvent *)
 Open an editor on the item under the mouse (e.g.
virtual void moveSelection (Selection s, size_t newStartFrame)
virtual void resizeSelection (Selection s, Selection newSize)
virtual void deleteSelection (Selection s)
virtual void copy (View *v, Selection s, Clipboard &to)
virtual bool paste (View *v, const Clipboard &from, int frameOffset, bool interactive)
 Paste from the given clipboard onto the layer at the given frame offset.
virtual const ModelgetModel () const
void setModel (SparseTimeValueModel *model)
virtual PropertyList getProperties () const
 Get a list of the names of all the supported properties on this container.
virtual QString getPropertyLabel (const PropertyName &) const
virtual PropertyType getPropertyType (const PropertyName &) const
virtual QString getPropertyGroupName (const PropertyName &) const
virtual int getPropertyRangeAndValue (const PropertyName &, int *min, int *max, int *deflt) const
virtual QString getPropertyValueLabel (const PropertyName &, int value) const
virtual void setProperty (const PropertyName &, int value)
void setFillColourMap (int)
int getFillColourMap () const
void setPlotStyle (PlotStyle style)
PlotStyle getPlotStyle () const
void setVerticalScale (VerticalScale scale)
VerticalScale getVerticalScale () const
virtual bool isLayerScrollable (const View *v) const
 This should return true if the layer can safely be scrolled automatically by a given view (simply copying the existing data and then refreshing the exposed area) without altering its meaning.
virtual bool isLayerEditable () const
 This should return true if the layer can be edited by the user.
virtual int getCompletion (View *) const
 Return the proportion of background work complete in drawing this view, as a percentage -- in most cases this will be the value returned by pointer from a call to the underlying model's isReady(int *) call.
virtual bool needsTextLabelHeight () const
virtual bool getValueExtents (float &min, float &max, bool &logarithmic, QString &unit) const
 Return the minimum and maximum values for the y axis of the model in this layer, as well as whether the layer is configured to use a logarithmic y axis display.
virtual bool getDisplayExtents (float &min, float &max) const
 Return the minimum and maximum values within the displayed range for the y axis, if only a subset of the whole range of the model (returned by getValueExtents) is being displayed.
virtual void toXml (QTextStream &stream, QString indent="", QString extraAttributes="") const
 Convert the layer's data (though not those of the model it refers to) into XML for file output.
void setProperties (const QXmlAttributes &attributes)
 Set the particular properties of a layer (those specific to the subclass) from a set of XML attributes.
virtual void setBaseColour (int)
virtual int getBaseColour () const
virtual bool hasLightBackground () const
virtual ColourSignificance getLayerColourSignificance () const
 This should return the degree of meaning associated with colour in this layer.
virtual QPixmap getLayerPresentationPixmap (QSize size) const
virtual QString getPropertyLabel (const PropertyName &) const =0
 Return the human-readable (and i18n'ised) name of a property.
virtual PropertyType getPropertyType (const PropertyName &) const
 Return the type of the given property, or InvalidProperty if the property is not supported on this container.
virtual QString getPropertyGroupName (const PropertyName &) const
 If this property has something in common with other properties on this container, return a name that can be used to group them (in order to save screen space, for example).
virtual int getPropertyRangeAndValue (const PropertyName &, int *min, int *max, int *deflt) const
 Return the minimum and maximum values for the given property and its current value in this container.
virtual QString getPropertyValueLabel (const PropertyName &, int value) const
 If the given property is a ValueProperty, return the display label to be used for the given value for that property.
virtual RangeMappergetNewPropertyRangeMapper (const PropertyName &) const
virtual RangeMappergetNewPropertyRangeMapper (const PropertyName &) const
 If the given property is a RangeProperty, return a new RangeMapper object mapping its integer range onto an underlying floating point value range for human-intelligible display, if appropriate.
virtual void setDefaultColourFor (View *v)
virtual ModelgetModel ()
virtual const ZoomConstraintgetZoomConstraint () const
 Return a zoom constraint object defining the supported zoom levels for this layer.
virtual bool supportsOtherZoomLevels () const
 Return true if this layer can handle zoom levels other than those supported by its zoom constraint (presumably less efficiently or accurately than the officially supported zoom levels).
virtual VerticalPosition getPreferredTimeRulerPosition () const
virtual VerticalPosition getPreferredFrameCountPosition () const
virtual QString getPropertyContainerIconName () const
virtual QString getPropertyContainerName () const
virtual void setPresentationName (QString name)
virtual QString getLayerPresentationName () const
virtual bool getCrosshairExtents (View *, QPainter &, QPoint, std::vector< QRect > &) const
virtual void paintCrosshairs (View *, QPainter &, QPoint) const
virtual void paintMeasurementRects (View *, QPainter &, bool showFocus, QPoint focusPoint) const
virtual bool nearestMeasurementRectChanged (View *, QPoint prev, QPoint now) const
virtual void measureStart (View *, QMouseEvent *)
virtual void measureDrag (View *, QMouseEvent *)
virtual void measureEnd (View *, QMouseEvent *)
virtual void measureDoubleClick (View *, QMouseEvent *)
virtual bool haveCurrentMeasureRect () const
virtual void deleteCurrentMeasureRect ()
virtual bool isLayerOpaque () const
 This should return true if the layer completely obscures any underlying layers.
virtual void setObjectName (const QString &name)
virtual void toBriefXml (QTextStream &stream, QString indent="", QString extraAttributes="") const
 Produce XML containing the layer's ID and type.
virtual void addMeasurementRect (const QXmlAttributes &)
 Add a measurement rectangle from the given XML attributes (presumably taken from a measurement element).
virtual void setLayerDormant (const View *v, bool dormant)
 Indicate that a layer is not currently visible in the given view and is not expected to become visible in the near future (for example because the user has explicitly removed or hidden it).
virtual bool isLayerDormant (const View *v) const
 Return whether the layer is dormant (i.e.
virtual PlayParametersgetPlayParameters ()
virtual bool hasTimeXAxis () const
virtual bool setDisplayExtents (float, float)
 Set the displayed minimum and maximum values for the y axis to the given range, if supported.
virtual bool getXScaleValue (const View *v, int x, float &value, QString &unit) const
 Return the value and unit at the given x coordinate in the given view.
virtual bool getYScaleValue (const View *, int, float &, QString &) const
 Return the value and unit at the given y coordinate in the given view.
virtual bool getYScaleDifference (const View *v, int y0, int y1, float &diff, QString &unit) const
 Return the difference between the values at the given y coordinates in the given view, and the unit of the difference.
virtual int getVerticalZoomSteps (int &) const
 Get the number of vertical zoom steps available for this layer.
virtual int getCurrentVerticalZoomStep () const
 Get the current vertical zoom step.
virtual void setVerticalZoomStep (int)
 Set the vertical zoom step.
virtual RangeMappergetNewVerticalZoomRangeMapper () const
 Create and return a range mapper for vertical zoom step values.
virtual QString getPropertyIconName (const PropertyName &) const
 Return an icon for the property, if any.
virtual QString toXmlString (QString indent="", QString extraAttributes="") const
 Convert this exportable object to XML in a string.

Static Public Member Functions

static QString encodeEntities (QString)
static QString encodeColour (QColor)
static int getObjectExportId (const void *)

Protected Types

typedef std::map< int, int > ColourRefCount
typedef std::set< MeasureRect > MeasureRectSet

Protected Member Functions

void getScaleExtents (View *, float &min, float &max, bool &log) const
int getYForValue (View *, float value) const
float getValueForY (View *, int y) const
QColor getColourForValue (View *v, float value) const
bool shouldAutoAlign () const
SparseTimeValueModel::PointList getLocalPoints (View *v, int) const
virtual int getDefaultColourHint (bool dark, bool &impose)
virtual QColor getBaseQColor () const
virtual QColor getBackgroundQColor (View *v) const
virtual QColor getForegroundQColor (View *v) const
std::vector< QColor > getPartialShades (View *v) const
virtual void flagBaseColourChanged ()
void connectSignals (const Model *)
virtual size_t alignToReference (View *v, size_t frame) const
virtual size_t alignFromReference (View *v, size_t frame) const
bool clipboardHasDifferentAlignment (View *v, const Clipboard &clip) const
void addMeasureRectToSet (const MeasureRect &r)
void deleteMeasureRectFromSet (const MeasureRect &r)
void updateMeasurePixrects (View *v) const
virtual void updateMeasureRectYCoords (View *v, const MeasureRect &r) const
virtual void setMeasureRectYCoord (View *v, MeasureRect &r, bool start, int y) const
virtual void setMeasureRectFromPixrect (View *v, MeasureRect &r, QRect pixrect) const
MeasureRectSet::const_iterator findFocusedMeasureRect (QPoint) const
void paintMeasurementRect (View *v, QPainter &paint, const MeasureRect &r, bool focus) const
virtual bool convertPropertyStrings (QString nameString, QString valueString, PropertyName &name, int &value)

Protected Attributes

SparseTimeValueModelm_model
bool m_editing
SparseTimeValueModel::Point m_originalPoint
SparseTimeValueModel::Point m_editingPoint
SparseTimeValueModel::EditCommand * m_editingCommand
int m_colourMap
PlotStyle m_plotStyle
VerticalScale m_verticalScale
int m_colour
bool m_colourExplicitlySet
bool m_defaultColourSet
MeasureRectSet m_measureRects
MeasureRect m_draggingRect
bool m_haveDraggingRect
bool m_haveCurrentMeasureRect
QPoint m_currentMeasureRectPoint
QString m_presentationName

Static Protected Attributes

static ColourRefCount m_colourRefCount


Member Typedef Documentation

typedef std::map<int, int> SingleColourLayer::ColourRefCount [protected, inherited]

Definition at line 68 of file SingleColourLayer.h.

typedef std::set<MeasureRect> Layer::MeasureRectSet [protected, inherited]

Definition at line 529 of file Layer.h.

typedef QString PropertyContainer::PropertyName [inherited]

Definition at line 35 of file PropertyContainer.h.

typedef std::vector<PropertyName> PropertyContainer::PropertyList [inherited]

Definition at line 36 of file PropertyContainer.h.


Member Enumeration Documentation

enum TimeValueLayer::PlotStyle

Enumerator:
PlotPoints 
PlotStems 
PlotConnectedPoints 
PlotLines 
PlotCurve 
PlotSegmentation 

Definition at line 84 of file TimeValueLayer.h.

enum TimeValueLayer::VerticalScale

Enumerator:
AutoAlignScale 
LinearScale 
LogScale 
PlusMinusOneScale 

Definition at line 96 of file TimeValueLayer.h.

enum Layer::VerticalPosition [inherited]

Enumerator:
PositionTop 
PositionMiddle 
PositionBottom 

Definition at line 79 of file Layer.h.

enum Layer::SnapType [inherited]

Enumerator:
SnapLeft 
SnapRight 
SnapNearest 
SnapNeighbouring 

Definition at line 123 of file Layer.h.

enum Layer::ColourSignificance [inherited]

Enumerator:
ColourAbsent 
ColourIrrelevant 
ColourDistinguishes 
ColourAndBackgroundSignificant 
ColourHasMeaningfulValue 

Definition at line 242 of file Layer.h.

enum PropertyContainer::PropertyType [inherited]

Enumerator:
ToggleProperty 
RangeProperty 
ValueProperty 
ColourProperty 
UnitsProperty 
InvalidProperty 

Definition at line 38 of file PropertyContainer.h.


Constructor & Destructor Documentation

TimeValueLayer::TimeValueLayer (  ) 

Definition at line 45 of file TimeValueLayer.cpp.


Member Function Documentation

void TimeValueLayer::paint ( View v,
QPainter &  paint,
QRect  rect 
) const [virtual]

Implements Layer.

Definition at line 537 of file TimeValueLayer.cpp.

References SingleColourLayer::getBaseQColor(), getColourForValue(), SingleColourLayer::getForegroundQColor(), View::getFrameForX(), getLocalPoints(), View::getModelsEndFrame(), SparseModel< PointType >::getPoints(), SparseModel< PointType >::getResolution(), SparseModel< PointType >::getSampleRate(), View::getTextLabelHeight(), SparseValueModel< PointType >::getValueMaximum(), SparseValueModel< PointType >::getValueMinimum(), View::getXForFrame(), getYForValue(), SparseModel< PointType >::isOK(), m_model, m_plotStyle, PlotConnectedPoints, PlotCurve, PlotLines, PlotSegmentation, PlotStems, and View::shouldIlluminateLocalFeatures().

int TimeValueLayer::getVerticalScaleWidth ( View v,
QPainter &   
) const [virtual]

Reimplemented from Layer.

Definition at line 758 of file TimeValueLayer.cpp.

References m_plotStyle, and PlotSegmentation.

Referenced by paintVerticalScale().

void TimeValueLayer::paintVerticalScale ( View v,
QPainter &  paint,
QRect  rect 
) const [virtual]

Reimplemented from Layer.

Definition at line 766 of file TimeValueLayer.cpp.

References getColourForValue(), SparseValueModel< PointType >::getScaleUnits(), SparseValueModel< PointType >::getValueMaximum(), SparseValueModel< PointType >::getValueMinimum(), getVerticalScaleWidth(), getYForValue(), m_model, m_plotStyle, and PlotSegmentation.

QString TimeValueLayer::getFeatureDescription ( View v,
QPoint &   
) const [virtual]

Reimplemented from Layer.

Definition at line 312 of file TimeValueLayer.cpp.

References RealTime::frame2RealTime(), getLocalPoints(), SparseModel< PointType >::getSampleRate(), SparseValueModel< PointType >::getScaleUnits(), View::getXForFrame(), getYForValue(), SparseModel< PointType >::isReady(), m_model, and RealTime::toText().

bool TimeValueLayer::snapToFeatureFrame ( View v,
int &  frame,
size_t &  resolution,
SnapType  snap 
) const [virtual]

Adjust the given frame to snap to the nearest feature, if possible.

If snap is SnapLeft or SnapRight, adjust the frame to match that of the nearest feature in the given direction regardless of how far away it is. If snap is SnapNearest, adjust the frame to that of the nearest feature in either direction. If snap is SnapNeighbouring, adjust the frame to that of the nearest feature if it is close, and leave it alone (returning false) otherwise. SnapNeighbouring should always choose the same feature that would be used in an editing operation through calls to editStart etc.

Return true if a suitable feature was found and frame adjusted accordingly. Return false if no suitable feature was available (and leave frame unmodified). Also return the resolution of the model in this layer in sample frames.

Reimplemented from Layer.

Definition at line 355 of file TimeValueLayer.cpp.

References getLocalPoints(), SparseModel< PointType >::getPoints(), SparseModel< PointType >::getResolution(), View::getXForFrame(), m_model, Layer::SnapLeft, Layer::SnapNeighbouring, Layer::SnapRight, and Layer::snapToFeatureFrame().

void TimeValueLayer::drawStart ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 843 of file TimeValueLayer.cpp.

References View::getFrameForX(), getLocalPoints(), SparseModel< PointType >::getResolution(), getValueForY(), m_editing, m_editingCommand, m_editingPoint, m_model, and m_originalPoint.

void TimeValueLayer::drawDrag ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 889 of file TimeValueLayer.cpp.

References View::getFrameForX(), getLocalPoints(), SparseModel< PointType >::getResolution(), getValueForY(), m_editing, m_editingCommand, m_editingPoint, m_model, and m_originalPoint.

void TimeValueLayer::drawEnd ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 941 of file TimeValueLayer.cpp.

References m_editing, m_editingCommand, and m_model.

void TimeValueLayer::eraseStart ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 951 of file TimeValueLayer.cpp.

References getLocalPoints(), m_editing, m_editingCommand, m_editingPoint, and m_model.

void TimeValueLayer::eraseDrag ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 969 of file TimeValueLayer.cpp.

void TimeValueLayer::eraseEnd ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 974 of file TimeValueLayer.cpp.

References getLocalPoints(), m_editing, m_editingCommand, m_editingPoint, and m_model.

void TimeValueLayer::editStart ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 996 of file TimeValueLayer.cpp.

References getLocalPoints(), m_editing, m_editingCommand, m_editingPoint, m_model, and m_originalPoint.

void TimeValueLayer::editDrag ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 1017 of file TimeValueLayer.cpp.

References View::getFrameForX(), SparseModel< PointType >::getResolution(), getValueForY(), m_editing, m_editingCommand, m_editingPoint, and m_model.

void TimeValueLayer::editEnd ( View v,
QMouseEvent *   
) [virtual]

Reimplemented from Layer.

Definition at line 1041 of file TimeValueLayer.cpp.

References m_editing, m_editingCommand, m_editingPoint, m_model, and m_originalPoint.

bool TimeValueLayer::editOpen ( View v,
QMouseEvent *  e 
) [virtual]

Open an editor on the item under the mouse (e.g.

on double-click). If there is no item or editing is not supported, return false.

Reimplemented from Layer.

Definition at line 1069 of file TimeValueLayer.cpp.

References TimeValuePoint::frame, ItemEditDialog::getFrameTime(), getLocalPoints(), SparseModel< PointType >::getSampleRate(), SparseValueModel< PointType >::getScaleUnits(), ItemEditDialog::getText(), ItemEditDialog::getValue(), m_model, ItemEditDialog::setFrameTime(), ItemEditDialog::setText(), ItemEditDialog::setValue(), ItemEditDialog::ShowText, ItemEditDialog::ShowTime, and ItemEditDialog::ShowValue.

void TimeValueLayer::moveSelection ( Selection  s,
size_t  newStartFrame 
) [virtual]

Reimplemented from Layer.

Definition at line 1108 of file TimeValueLayer.cpp.

References Selection::contains(), TimeValuePoint::frame, Selection::getEndFrame(), SparseModel< PointType >::getPoints(), Selection::getStartFrame(), and m_model.

void TimeValueLayer::resizeSelection ( Selection  s,
Selection  newSize 
) [virtual]

Reimplemented from Layer.

Definition at line 1134 of file TimeValueLayer.cpp.

References Selection::contains(), Selection::getEndFrame(), SparseModel< PointType >::getPoints(), Selection::getStartFrame(), and m_model.

void TimeValueLayer::deleteSelection ( Selection  s  )  [virtual]

Reimplemented from Layer.

Definition at line 1169 of file TimeValueLayer.cpp.

References Selection::contains(), Selection::getEndFrame(), SparseModel< PointType >::getPoints(), Selection::getStartFrame(), and m_model.

void TimeValueLayer::copy ( View v,
Selection  s,
Clipboard to 
) [virtual]

Reimplemented from Layer.

Definition at line 1192 of file TimeValueLayer.cpp.

References Clipboard::addPoint(), Layer::alignToReference(), Selection::contains(), Selection::getEndFrame(), SparseModel< PointType >::getPoints(), Selection::getStartFrame(), and m_model.

bool TimeValueLayer::paste ( View v,
const Clipboard from,
int  frameOffset,
bool  interactive 
) [virtual]

Paste from the given clipboard onto the layer at the given frame offset.

If interactive is true, the layer may ask the user about paste options through a dialog if desired, and may return false if the user cancelled the paste operation. This function should return true if a paste actually occurred.

Reimplemented from Layer.

Definition at line 1210 of file TimeValueLayer.cpp.

References Labeller::actingOnPrevPoint(), Layer::alignFromReference(), Layer::clipboardHasDifferentAlignment(), ListInputDialog::getItem(), Clipboard::getPoints(), SparseModel< PointType >::getSampleRate(), Labeller::getTypeNames(), SparseModel< PointType >::isEmpty(), m_model, Labeller::setCounterCycleSize(), Labeller::setSampleRate(), Labeller::setType(), Labeller::setValue(), TimeValuePoint::value, Labeller::ValueFromCyclicalCounter, Labeller::ValueFromTwoLevelCounter, and Labeller::ValueNone.

virtual const Model* TimeValueLayer::getModel (  )  const [inline, virtual]

Implements Layer.

Definition at line 68 of file TimeValueLayer.h.

References m_model.

void TimeValueLayer::setModel ( SparseTimeValueModel model  ) 

Definition at line 60 of file TimeValueLayer.cpp.

References Layer::connectSignals(), m_model, and Layer::modelReplaced().

Layer::PropertyList TimeValueLayer::getProperties (  )  const [virtual]

Get a list of the names of all the supported properties on this container.

These should be fixed (i.e. not internationalized).

Reimplemented from SingleColourLayer.

Definition at line 73 of file TimeValueLayer.cpp.

References SingleColourLayer::getProperties().

QString TimeValueLayer::getPropertyLabel ( const PropertyName  )  const [virtual]

Reimplemented from SingleColourLayer.

Definition at line 83 of file TimeValueLayer.cpp.

References SingleColourLayer::getPropertyLabel().

Layer::PropertyType TimeValueLayer::getPropertyType ( const PropertyName  )  const [virtual]

Reimplemented from SingleColourLayer.

Definition at line 92 of file TimeValueLayer.cpp.

References SingleColourLayer::getPropertyType(), m_plotStyle, PlotSegmentation, PropertyContainer::UnitsProperty, and PropertyContainer::ValueProperty.

QString TimeValueLayer::getPropertyGroupName ( const PropertyName  )  const [virtual]

Reimplemented from SingleColourLayer.

Definition at line 102 of file