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AbstractGraphElement

An abstract graph element. Declares a couple of useful functions to help subclasses which use CWR (CanvasWidget Renderer).

Inherits from: CanvasWidget, Widget, Drawable

Inherited by: AbstractGraphElementNoCWR, GraphElementArea, GraphElementDiamonds, GraphElementDots, GraphElementLine

Public Functions

AbstractGraphElement()
Default constructor.
virtual voidinvalidateGraphPointAt(int16_t index) =0
Invalidate the point at the given index.

Protected Functions

FORCE_INLINE_FUNCTION intconvertToGraphScaleX(const AbstractDataGraph * graph, int value, int scale) const
Converts the value to the proper X scale of the graph.
FORCE_INLINE_FUNCTION intconvertToGraphScaleY(const AbstractDataGraph * graph, int value, int scale) const
Converts the value to the proper Y scale of the graph.
FORCE_INLINE_FUNCTION AbstractDataGraph *getGraph() const
Gets a pointer to the the graph containing the GraphElement.
FORCE_INLINE_FUNCTION intgetIndexToXAxis(const AbstractDataGraph * graph, const int valueScaled, const int labelScaled) const
Convert the given valueScaled (index) to x axis value.
FORCE_INLINE_FUNCTION CWRUtil::Q5indexToScreenXQ5(const AbstractDataGraph * graph, int16_t index) const
Gets screen x coordinate for a specific data point added to the graph.
FORCE_INLINE_FUNCTION CWRUtil::Q5indexToScreenYQ5(const AbstractDataGraph * graph, int16_t index) const
Gets screen y coordinate for a specific data point added to the graph.
boolisCenterInvisible(const AbstractDataGraph * graph, int16_t index) const
Query if the center of a given data point index is visible inside the graph area.
RectrectAround(CWRUtil::Q5 xQ5, CWRUtil::Q5 yQ5, CWRUtil::Q5 diameterQ5) const
Find the screen rectangle around a given point with the specified diameter.
RectrectFromQ5Coordinates(CWRUtil::Q5 screenXminQ5, CWRUtil::Q5 screenYminQ5, CWRUtil::Q5 screenXmaxQ5, CWRUtil::Q5 screenYmaxQ5) const
Find the screen rectangle containing the Q5 screen rectangle by rounding the coordinates up/down.
FORCE_INLINE_FUNCTION CWRUtil::Q5roundQ5(CWRUtil::Q5 q5) const
Round the given CWRUtil::Q5 to the nearest integer and return it as a CWRUtil::Q5 instead of an integer.
FORCE_INLINE_FUNCTION CWRUtil::Q5valueToScreenXQ5(const AbstractDataGraph * graph, int x) const
Gets graph screen x for x value.
FORCE_INLINE_FUNCTION CWRUtil::Q5valueToScreenYQ5(const AbstractDataGraph * graph, int y) const
Gets graph screen y for y value.
FORCE_INLINE_FUNCTION boolxScreenRangeToIndexRange(const AbstractDataGraph * graph, int16_t xMin, int16_t xMax, int16_t & indexMin, int16_t & indexMax) const
Gets graph element range for screen x coordinate range.

Additional inherited members

Public Functions inherited from CanvasWidget

CanvasWidget()
virtual voiddraw(const Rect & invalidatedArea) const
Draws the given invalidated area.
virtual booldrawCanvasWidget(const Rect & invalidatedArea) const =0
Draw canvas widget for the given invalidated area.
virtual uint8_tgetAlpha() const
Gets the current alpha value of the widget.
virtual RectgetMinimalRect() const
Gets minimal rectangle containing the shape drawn by this widget.
const AbstractPainter *getPainter() const
Gets the current painter for the CanvasWidget.
virtual RectgetSolidRect() const
Gets the largest solid (non-transparent) rectangle.
virtual voidinvalidate() const
Invalidates the area covered by this CanvasWidget.
virtual voidsetAlpha(uint8_t newAlpha)
Sets the opacity (alpha value).
voidsetPainter(const AbstractPainter & painter)
Sets a painter for the CanvasWidget.

Protected Attributes inherited from CanvasWidget

uint8_talpha
The Alpha for this CanvasWidget.

Public Functions inherited from Widget

virtual voidgetLastChild(int16_t , int16_t , Drawable ** last)
Since a Widget is only one Drawable, Widget::getLastChild simply yields itself as result, but only if the Widget isVisible and isTouchable.

Public Functions inherited from Drawable

voidcenter()
Centers the Drawable inside its parent.
voidcenterX()
Center the Drawable horizontally inside its parent.
voidcenterY()
Center the Drawable vertically inside its parent.
virtual voidchildGeometryChanged()
This function can be called on parent nodes to signal that the size or position of one or more of its children has changed.
virtual voiddraw(const Rect & invalidatedArea) const =0
Draw this drawable.
Drawable()
Initializes a new instance of the Drawable class.
voiddrawToDynamicBitmap(BitmapId id)
Render the Drawable object into a dynamic bitmap.
voidexpand(int margin =0)
Expands the Drawable to have the same size as its parent with a given margin around the edge.
RectgetAbsoluteRect() const
Helper function for obtaining the rectangle this Drawable covers, expressed in absolute coordinates.
virtual Drawable *getFirstChild()
Function for obtaining the first child of this drawable if any.
int16_tgetHeight() const
Gets the height of this Drawable.
virtual voidgetLastChild(int16_t x, int16_t y, Drawable ** last) =0
Function for obtaining the the last child of this drawable that intersects with the specified point.
Drawable *getNextSibling()
Gets the next sibling node.
Drawable *getParent() const
Returns the parent node.
const Rect &getRect() const
Gets the rectangle this Drawable covers, in coordinates relative to its parent.
virtual RectgetSolidRect() const =0
Get (the largest possible) rectangle that is guaranteed to be solid (opaque).
virtual RectgetSolidRectAbsolute()
Helper function for obtaining the largest solid rect (as implemented by getSolidRect()) expressed in absolute coordinates.
virtual voidgetVisibleRect(Rect & rect) const
Function for finding the visible part of this drawable.
int16_tgetWidth() const
Gets the width of this Drawable.
int16_tgetX() const
Gets the x coordinate of this Drawable, relative to its parent.
int16_tgetY() const
Gets the y coordinate of this Drawable, relative to its parent.
virtual voidhandleClickEvent(const ClickEvent & event)
Defines the event handler interface for ClickEvents.
virtual voidhandleDragEvent(const DragEvent & event)
Defines the event handler interface for DragEvents.
virtual voidhandleGestureEvent(const GestureEvent & event)
Defines the event handler interface for GestureEvents.
virtual voidhandleTickEvent()
Called periodically by the framework if the Drawable instance has subscribed to timer ticks.
virtual voidinvalidate() const
Tell the framework that this entire Drawable needs to be redrawn.
virtual voidinvalidateContent() const
Tell the framework that the contents of the Drawable needs to be redrawn.
virtual voidinvalidateRect(Rect & invalidatedArea) const
Request that a region of this drawable is redrawn.
boolisTouchable() const
Gets whether this Drawable receives touch events or not.
boolisVisible() const
Gets whether this Drawable is visible.
virtual voidmoveRelative(int16_t x, int16_t y)
Moves the drawable.
virtual voidmoveTo(int16_t x, int16_t y)
Moves the drawable.
virtual voidsetHeight(int16_t height)
Sets the height of this drawable.
voidsetPosition(const Drawable & drawable)
Sets the position of the Drawable to the same as the given Drawable.
voidsetPosition(int16_t x, int16_t y, int16_t width, int16_t height)
Sets the size and position of this Drawable, relative to its parent.
voidsetTouchable(bool touch)
Controls whether this Drawable receives touch events or not.
voidsetVisible(bool vis)
Controls whether this Drawable should be visible.
virtual voidsetWidth(int16_t width)
Sets the width of this drawable.
voidsetWidthHeight(const Bitmap & bitmap)
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates).
voidsetWidthHeight(const Drawable & drawable)
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates).
voidsetWidthHeight(const Rect & other)
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates).
voidsetWidthHeight(int16_t width, int16_t height)
Sets the dimensions (width and height) of the Drawable without changing the x and y coordinates).
virtual voidsetX(int16_t x)
Sets the x coordinate of this Drawable, relative to its parent.
voidsetXY(const Drawable & drawable)
Sets the x and y coordinates of this Drawable.
voidsetXY(int16_t x, int16_t y)
Sets the x and y coordinates of this Drawable, relative to its parent.
virtual voidsetY(int16_t y)
Sets the y coordinate of this Drawable, relative to its parent.
virtual voidtranslateRectToAbsolute(Rect & r) const
Helper function for converting a region of this Drawable to absolute coordinates.
virtual ~Drawable()
Finalizes an instance of the Drawable class.

Protected Attributes inherited from Drawable

Drawable *nextSibling
Pointer to the next Drawable.
Drawable *parent
Pointer to this drawable's parent.
Rectrect
The coordinates of this Drawable, relative to its parent.
booltouchable
True if this drawable should receive touch events.
boolvisible
True if this drawable should be drawn.

Public Functions Documentation

AbstractGraphElement

Default constructor.

invalidateGraphPointAt

Protected Functions Documentation

convertToGraphScaleX

FORCE_INLINE_FUNCTION int convertToGraphScaleX(const AbstractDataGraph *graph ,const
intvalue ,const
intscaleconst
)const

Converts the value to the proper X scale of the graph.

Parameters:
graphThe graph.
valueThe value.
scaleThe scale.
Returns:

The given data converted to a graph scale x coordinate.

convertToGraphScaleY

FORCE_INLINE_FUNCTION int convertToGraphScaleY(const AbstractDataGraph *graph ,const
intvalue ,const
intscaleconst
)const

Converts the value to the proper Y scale of the graph.

Parameters:
graphThe graph.
valueThe value.
scaleThe scale.
Returns:

The given data converted to a graph scale y coordinate.

getGraph

FORCE_INLINE_FUNCTION AbstractDataGraph * getGraph()const

Gets a pointer to the the graph containing the GraphElement.

Returns:

A pointer to the graph.

getIndexToXAxis

FORCE_INLINE_FUNCTION int getIndexToXAxis(const AbstractDataGraph *graph ,const
const intvalueScaled ,const
const intlabelScaledconst
)const

Convert the given valueScaled (index) to x axis value.

Parameters:
valueScaledThe value scaled.
labelScaledThe label scaled.
graphThe graph.
Returns:

The x axis value. The x axis value.

indexToScreenXQ5

FORCE_INLINE_FUNCTION CWRUtil::Q5 indexToScreenXQ5(const AbstractDataGraph *graph ,const
int16_tindexconst
)const

Gets screen x coordinate for a specific data point added to the graph.

Parameters:
graphThe graph.
indexThe index of the element to get the x coordinate for.
Returns:

The screen x coordinate for the specific data point.

indexToScreenYQ5

FORCE_INLINE_FUNCTION CWRUtil::Q5 indexToScreenYQ5(const AbstractDataGraph *graph ,const
int16_tindexconst
)const

Gets screen y coordinate for a specific data point added to the graph.

Parameters:
graphThe graph.
indexThe index of the element to get the y coordinate for.
Returns:

The screen x coordinate for the specific data point.

isCenterInvisible

bool isCenterInvisible(const AbstractDataGraph *graph ,const
int16_tindexconst
)const

Query if the center of a given data point index is visible inside the graph area.

Parameters:
graphThe graph.
indexThe data point index.
Returns:

True if center invisible, false if not.

rectAround

Rect rectAround(CWRUtil::Q5xQ5 ,const
CWRUtil::Q5yQ5 ,const
CWRUtil::Q5diameterQ5const
)const

Find the screen rectangle around a given point with the specified diameter.

Parameters:
xQ5The screen x coordinate (in Q5).
yQ5The screen y coordinate (in Q5).
diameterQ5The diameter (in Q5).
Returns:

A Rect containing the point (and diameter).

rectFromQ5Coordinates

Rect rectFromQ5Coordinates(CWRUtil::Q5screenXminQ5 ,const
CWRUtil::Q5screenYminQ5 ,const
CWRUtil::Q5screenXmaxQ5 ,const
CWRUtil::Q5screenYmaxQ5const
)const

Find the screen rectangle containing the Q5 screen rectangle by rounding the coordinates up/down.

Parameters:
screenXminQ5The minimum screen x coordinate (in Q5).
screenYminQ5The maximum screen y coordinate (in Q5).
screenXmaxQ5The minimum screen x coordinate (in Q5).
screenYmaxQ5The maximum screen y coordinate (in Q5).
Returns:

A Rect containing the Q5 rectangle.

roundQ5

FORCE_INLINE_FUNCTION CWRUtil::Q5 roundQ5(CWRUtil::Q5q5)

Round the given CWRUtil::Q5 to the nearest integer and return it as a CWRUtil::Q5 instead of an integer.

Parameters:
q5The CWRUtil::Q5 value to round.
Returns:

The nearest integer as a CWRUtil::Q5 value.

valueToScreenXQ5

FORCE_INLINE_FUNCTION CWRUtil::Q5 valueToScreenXQ5(const AbstractDataGraph *graph ,const
intxconst
)const

Gets graph screen x for x value.

Parameters:
graphThe graph.
xThe x value.
Returns:

The graph screen x for value.

valueToScreenYQ5

FORCE_INLINE_FUNCTION CWRUtil::Q5 valueToScreenYQ5(const AbstractDataGraph *graph ,const
intyconst
)const

Gets graph screen y for y value.

Parameters:
graphThe graph.
yThe y value.
Returns:

The graph screen y for value.

xScreenRangeToIndexRange

FORCE_INLINE_FUNCTION bool xScreenRangeToIndexRange(const AbstractDataGraph *graph ,const
int16_txMin ,const
int16_txMax ,const
int16_t &indexMin ,const
int16_t &indexMaxconst
)const

Gets graph element range for screen x coordinate range.

Parameters:
graphThe graph.
xMinThe low X.
xMaxThe high X.
indexMinThe low index.
indexMaxThe high index.
Returns:

True if it succeeds, false if it fails.