GraphicalDDLayer Class Reference

Class for graphical LCD layer; created with DumbDisplay::createGraphicalLayer() More...

#include <dumbdisplay.h>

Inheritance diagram for GraphicalDDLayer:

Public Member Functions
	GraphicalDDLayer (int8_t layerId)
	for internal use only
void	setRotation (int8_t rotationType)
	rotate the screen
void	setCursor (int x, int y)
	set cursor to position
void	moveCursorBy (int byX, int byY)
	move cursor by some amount
void	setTextColor (const String &color, const String &bgColor="")
void	setTextSize (int size)
	set text size
void	setTextFont (const String &fontName)
void	setTextFont ()
	reset text font and size
void	setTextFont (const String &fontName, int textSize)
void	setTextWrap (bool wrapOn)
	set whether "print" will auto wrap or not
void	fillScreen (const String &color)
void	print (const String &text)
	print text
void	println (const String &text="")
	print text with line feed
void	drawChar (int x, int y, char c, const String &color="", const String &bgColor="", int size=0)
void	drawStr (int x, int y, const String &string, const String &color="", const String &bgColor="", int size=0)
void	drawTextLine (const String &text, int y, const String &align="L", const String &color="", const String &bgColor="", int size=0)
void	drawPixel (int x, int y, const String &color="")
void	drawLine (int x1, int y1, int x2, int y2, const String &color="")
void	drawCircle (int x, int y, int r, const String &color="", bool filled=false)
void	fillCircle (int x, int y, int r, const String &color="")
void	drawTriangle (int x1, int y1, int x2, int y2, int x3, int y3, const String &color="", bool filled=false)
void	fillTriangle (int x1, int y1, int x2, int y2, int x3, int y3, const String &color="")
void	drawRect (int x, int y, int w, int h, const String &color="", bool filled=false)
void	fillRect (int x, int y, int w, int h, const String &color="")
void	drawRoundRect (int x, int y, int w, int h, int r, const String &color="", bool filled=false)
void	fillRoundRect (int x, int y, int w, int h, int r, const String &color="")
void	drawOval (int x, int y, int w, int h, const String &color="", bool filled=false)
void	fillOval (int x, int y, int w, int h, const String &color="")
void	drawArc (int x, int y, int w, int h, int startAngle, int sweepAngle, bool useCenter, const String &color="", bool filled=false)
void	fillArc (int x, int y, int w, int h, int startAngle, int sweepAngle, bool useCenter, const String &color="")
void	forward (int distance)
	move forward (relative to cursor)
void	leftTurn (int angle)
	turn left
void	rightTurn (int angle)
	turn right
void	setHeading (int angle)
	set heading angle (degree)
void	penSize (int size)
	set pen size
void	penColor (const String &color)
void	fillColor (const String &color)
void	noFillColor ()
	set no fill color (for shape)
void	circle (int radius, bool centered=false)
	draw a circle; centered or not
void	oval (int width, int height, bool centered=false)
	draw an oval; centered or not
void	arc (int width, int height, int startAngle, int sweepAngle, bool centered=false)
	draw arc; centered or not
void	triangle (int side1, int angle, int side2)
	draw triangle (SAS)
void	isoscelesTriangle (int side, int angle)
	draw isosceles triangle; given size and angle
void	rectangle (int width, int height, bool centered=false)
	draw rectangle; centered or not
void	polygon (int side, int vertexCount)
	draw polygon given side and vertex count
void	centeredPolygon (int radius, int vertexCount, bool inside=false)
void	write (const String &text, bool draw=false)
void	loadImageFile (const String &imageFileName, int w=0, int h=0, const String &asImageFileName="")
void	loadImageFileScaled (const String &imageFileName, int w, int h, const String &asImageFileName)
void	loadImageFileCropped (const String &imageFileName, int x, int y, int w, int h, const String &asImageFileName, int scaleW=0, int scaleH=0)
void	unloadImageFile (const String &imageFileName)
	unload image file from cache
void	unloadAllImageFiles ()
	unload all image files from cache
void	drawImageFile (const String &imageFileName, int x=0, int y=0, int w=0, int h=0, const String &options="")
void	drawImageFile (const String &imageFileName, const String &options)
	another version of drawImageFile() with options
void	drawImageFileScaled (const String &imageFileName, int w, int h, const String &options="")
void	drawImageFileFit (const String &imageFileName, int x=0, int y=0, int w=0, int h=0, const String &options="")
void	drawImageFileFit (const String &imageFileName, const String &options)
	another version of drawImageFileFit() with options
void	cacheImage (const String &imageName, const uint8_t *bytes, int byteCount, char compressionMethod=0)
void	cacheImageWithTS (const String &imageName, const uint8_t *bytes, int byteCount, long imageTimestamp, char compressionMethod=0)
void	cachePixelImage (const String &imageName, const uint8_t *bytes, int width, int height, const String &color="", char compressionMethod=0)
void	cachePixelImage16 (const String &imageName, const uint16_t *data, int width, int height, const String &options="", char compressMethod=0)
void	cachePixelImageGS (const String &imageName, const uint8_t *data, int width, int height, const String &options="", char compressMethod=0)
void	saveCachedImageFile (const String &imageName, const String &asImageName="")
void	saveCachedImageFileAsync (const String &imageName, const String &asImageName="")
void	saveCachedImageFiles (const String &stitchAsImageName="")
Public Member Functions inherited from MultiLevelDDLayer
void	addLevel (const String &levelId, float width, float height, bool switchToIt=false)
void	addLevel (const String &levelId, bool switchToIt=false)
	another version of addLevel()
void	addTopLevel (const String &levelId, float width=0, float height=0, bool switchToIt=false)
	like addLevel() but add to the top (i.e. will be drawn last)
void	addTopLevel (const String &levelId, bool switchToIt)
	another version of addTopLevel()
void	switchLevel (const String &levelId, bool addIfMissing=true)
void	pushLevel ()
	push the current level onto the level stack, to be pop with popLevel()
void	pushLevelAndSwitchTo (const String &switchTolevelId, bool addIfMissing=true)
void	popLevel ()
	pop a level from the level stack and make it the current level
void	levelOpacity (int opacity)
void	levelTransparent (bool transparent)
	set whether level is transparent
void	setLevelAnchor (float x, float y, long reachInMillis=0)
	set the anchor of the level; note that level anchor is the top-left corner of the level "opening"
void	moveLevelAnchorBy (float byX, float byY, long reachInMillis=0)
	move the level anchor
void	registerLevelBackground (const String &backgroundId, const String &backgroundImageName, const String &drawBackgroundOptions="")
void	setLevelBackground (const String &backgroundId, const String &backgroundImageName="", const String &drawBackgroundOptions="")
void	setLevelNoBackground ()
	set that the current level uses no background image
void	animateLevelBackground (int fps, bool reset=true, const String &options="")
void	stopAnimateLevelBackground (bool reset=true)
void	reorderLevel (const String &levelId, const String &how)
void	exportLevelsAsImage (const String &imageFileName, bool cacheItNotSave=false)
	export (and save) the levels as an image (without the decorations of the layer like border)
void	deleteLevel (const String &levelId)
	delete the specified level
Public Member Functions inherited from DDLayer
void	border (float size, const String &color, const String &shape="flat", float extraSize=0)
void	noBorder ()
void	padding (float size)
void	padding (float left, float top, float right, float bottom)
void	noPadding ()
void	margin (float size)
void	margin (float left, float top, float right, float bottom)
void	noMargin ()
void	backgroundColor (const String &color, int opacity=100)
void	noBackgroundColor ()
void	visible (bool visible)
void	transparent (bool transparent)
void	disabled (bool disabled=true)
void	opacity (int opacity)
void	alpha (int alpha)
void	blend (const String &color, int alpha=255, const String &mode="darken")
void	noblend ()
void	clear ()
	clear the layer
void	flash ()
	normally used for "feedback" – flash the default way (layer + border)
void	flashArea (int x, int y)
	normally used for "feedback" – flash the area (x, y) where the layer is clicked
void	explicitFeedback (int16_t x=0, int16_t y=0, const String &text="", DDFeedbackType type=CLICK, const String &option="")
const String &	getLayerId () const
void	setFeedbackHandler (DDFeedbackHandler handler, const String &autoFeedbackMethod="", const String &allowFeedbackTypes="")
void	enableFeedback (const String &autoFeedbackMethod="", const String &allowFeedbackTypes="")
void	disableFeedback ()
	disable "feedback"
const DDFeedback *	getFeedback ()
void	debugOnly (int i)
	for debug use
DDFeedbackManager *	getFeedbackManager () const
DDFeedbackHandler	getFeedbackHandler () const

Additional Inherited Members
Public Attributes inherited from DDObject
int8_t	objectType
	object type – DD_OBJECT_TYPE_LAYER or DD_OBJECT_TYPE_TUNNEL
String	customData
	custom data
Protected Member Functions inherited from MultiLevelDDLayer
	MultiLevelDDLayer (int8_t layerId)
Protected Member Functions inherited from DDLayer
	DDLayer (int8_t layerId)
void	_enableFeedback ()
Protected Attributes inherited from DDLayer
String	layerId
DDFeedbackManager *	pFeedbackManager
DDFeedbackHandler	feedbackHandler

Detailed Description

Class for graphical LCD layer; created with DumbDisplay::createGraphicalLayer()

Member Function Documentation

cacheImage()

void GraphicalDDLayer::cacheImage	(	const String &	imageName,
		const uint8_t *	bytes,
		int	byteCount,
		char	compressionMethod = 0
	)

cache image; not saved

Parameters

imageName

cachedImageName

cacheImageWithTS()

void GraphicalDDLayer::cacheImageWithTS	(	const String &	imageName,
		const uint8_t *	bytes,
		int	byteCount,
		long	imageTimestamp,
		char	compressionMethod = 0
	)

cache image with specified timestamp; not saved

Parameters

imageName

cachedImageName

cachePixelImage()

void GraphicalDDLayer::cachePixelImage	(	const String &	imageName,
		const uint8_t *	bytes,
		int	width,
		int	height,
		const String &	color = "",
		char	compressionMethod = 0
	)

cache single-bit "pixel" image (i.e. B&W image); not saved

Parameters

imageName

cachedImageName

cachePixelImage16()

void GraphicalDDLayer::cachePixelImage16	(	const String &	imageName,
		const uint16_t *	data,
		int	width,
		int	height,
		const String &	options = "",
		char	compressMethod = 0
	)

cache 16-bit "pixel" image (i.e. 565 RGB image); not saved

Parameters

imageName

cachedImageName

cachePixelImageGS()

void GraphicalDDLayer::cachePixelImageGS	(	const String &	imageName,
		const uint8_t *	data,
		int	width,
		int	height,
		const String &	options = "",
		char	compressMethod = 0
	)

cache grayscale "pixel" image; not saved

Parameters

imageName

cachedImageName

centeredPolygon()

void GraphicalDDLayer::centeredPolygon	(	int	radius,
		int	vertexCount,
		bool	inside = false
	)

draw polygon "enclosed" in an imaginary centered circle

Parameters

radius	circle radius
vertexCount	number of vertices
inside	whether inside the imaginary circle or outside of it

drawArc()

void GraphicalDDLayer::drawArc	(	int	x,
		int	y,
		int	w,
		int	h,
		int	startAngle,
		int	sweepAngle,
		bool	useCenter,
		const String &	color = "",
		bool	filled = false
	)

draw an arc

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawChar()

void GraphicalDDLayer::drawChar	(	int	x,
		int	y,
		char	c,
		const String &	color = "",
		const String &	bgColor = "",
		int	size = 0
	)

draw char

Parameters

color	DD_RGB_COLOR(...) or common color name; empty color means text color
backgroundColor	DD_RGB_COLOR(...) or common color name; empty background color means no background color
size	0 means default

drawCircle()

void GraphicalDDLayer::drawCircle	(	int	x,
		int	y,
		int	r,
		const String &	color = "",
		bool	filled = false
	)

draw a circle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawImageFile()

void GraphicalDDLayer::drawImageFile	(	const String &	imageFileName,
		int	x = 0,
		int	y = 0,
		int	w = 0,
		int	h = 0,
		const String &	options = ""
	)

draw image file in cache (if not already loaded to cache, load it)

Parameters

x,y	position of the left-top corner
w,h	image size to scale to; if both 0, will not scale, if any 0, will scale keeping aspect ratio

drawImageFileFit()

void GraphicalDDLayer::drawImageFileFit	(	const String &	imageFileName,
		int	x = 0,
		int	y = 0,
		int	w = 0,
		int	h = 0,
		const String &	options = ""
	)

draw image file in cache (if not already loaded to cache, load it)

Parameters

x,y,w,h	rect to draw the image; 0 means the default value
options	(e.g. "LB"): left align "L"; right align "R"; top align "T"; bottom align "B"; default to fit centered

drawImageFileScaled()

void GraphicalDDLayer::drawImageFileScaled ( const String &  imageFileName, int  w, int  h, const String &  options = ""  )

inline

draw image file in cache scaled, like calling drawImageFile(imageFileName, 0, 0, w, h, options) with w and h

See also

drawImageFile()

drawLine()

void GraphicalDDLayer::drawLine	(	int	x1,
		int	y1,
		int	x2,
		int	y2,
		const String &	color = ""
	)

draw a line

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawOval()

void GraphicalDDLayer::drawOval	(	int	x,
		int	y,
		int	w,
		int	h,
		const String &	color = "",
		bool	filled = false
	)

draw an ellipse (oval)

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawPixel()

void GraphicalDDLayer::drawPixel	(	int	x,
		int	y,
		const String &	color = ""
	)

draw a pixel

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawRect()

void GraphicalDDLayer::drawRect	(	int	x,
		int	y,
		int	w,
		int	h,
		const String &	color = "",
		bool	filled = false
	)

draw a rectangle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawRoundRect()

void GraphicalDDLayer::drawRoundRect	(	int	x,
		int	y,
		int	w,
		int	h,
		int	r,
		const String &	color = "",
		bool	filled = false
	)

draw a rounded rectangle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

drawStr()

void GraphicalDDLayer::drawStr	(	int	x,
		int	y,
		const String &	string,
		const String &	color = "",
		const String &	bgColor = "",
		int	size = 0
	)

draw string

Parameters

color	DD_RGB_COLOR(...) or common color name; empty color means text color
backgroundColor	DD_RGB_COLOR(...) or common color name; empty background color means no background color
size	0 means default

drawTextLine()

void GraphicalDDLayer::drawTextLine	(	const String &	text,
		int	y,
		const String &	align = "L",
		const String &	color = "",
		const String &	bgColor = "",
		int	size = 0
	)

similar to drawStr(), but draw string as a text line at (0, y) with alignment option

Parameters

align

'L', 'C', or 'R'

drawTriangle()

void GraphicalDDLayer::drawTriangle	(	int	x1,
		int	y1,
		int	x2,
		int	y2,
		int	x3,
		int	y3,
		const String &	color = "",
		bool	filled = false
	)

draw a triangle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

fillArc()

void GraphicalDDLayer::fillArc ( int  x, int  y, int  w, int  h, int  startAngle, int  sweepAngle, bool  useCenter, const String &  color = ""  )

inline

draw filled arc

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

fillCircle()

void GraphicalDDLayer::fillCircle ( int  x, int  y, int  r, const String &  color = ""  )

inline

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

fillColor()

void GraphicalDDLayer::fillColor

(

const String &

color

)

set fill color (for shape)

Parameters

color

DD_COLOR_XXX; DD_RGB_COLOR(...); can also be common "color name"

fillOval()

void GraphicalDDLayer::fillOval ( int  x, int  y, int  w, int  h, const String &  color = ""  )

inline

draw filled ellipse (oval)

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

fillRect()

void GraphicalDDLayer::fillRect ( int  x, int  y, int  w, int  h, const String &  color = ""  )

inline

draw filled rectangle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

fillRoundRect()

void GraphicalDDLayer::fillRoundRect ( int  x, int  y, int  w, int  h, int  r, const String &  color = ""  )

inline

draw filled rounded rectangle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

fillScreen()

void GraphicalDDLayer::fillScreen

(

const String &

color

)

fill screen with color

Parameters

color

DD_COLOR_XXX; DD_RGB_COLOR(...); can also be common "color name"

fillTriangle()

void GraphicalDDLayer::fillTriangle ( int  x1, int  y1, int  x2, int  y2, int  x3, int  y3, const String &  color = ""  )

inline

draw filled triangle

Parameters

color

DD_RGB_COLOR(...) or common color name; empty color means text color

loadImageFile()

void GraphicalDDLayer::loadImageFile	(	const String &	imageFileName,
		int	w = 0,
		int	h = 0,
		const String &	asImageFileName = ""
	)

load image file to cache

Parameters

w,h	image size to scale to; if both 0, will not scale, if any 0, will scale keeping aspect ratio
asImageFileName	better provide a different name for the scaled cached

loadImageFileScaled()

void GraphicalDDLayer::loadImageFileScaled ( const String &  imageFileName, int  w, int  h, const String &  asImageFileName  )

inline

load image file to cache cropped

Parameters

x,y,w,h	rect to crop the image
asImageFileName	since image cropped, should provide a different name for the scaled cached

see loadImageFile()

penColor()

void GraphicalDDLayer::penColor

(

const String &

color

)

set pen color (i.e. text color)

Parameters

color

DD_COLOR_XXX; DD_RGB_COLOR(...); can also be common "color name"

saveCachedImageFile()

void GraphicalDDLayer::saveCachedImageFile	(	const String &	imageName,
		const String &	asImageName = ""
	)

saved cached image

Parameters

imageName

cachedImageName

saveCachedImageFileAsync()

void GraphicalDDLayer::saveCachedImageFileAsync	(	const String &	imageName,
		const String &	asImageName = ""
	)

saved cached image (async / non-blocking)

Parameters

imageName

cachedImageName

saveCachedImageFiles()

void GraphicalDDLayer::saveCachedImageFiles

(

const String &

stitchAsImageName = ""

)

saved cached image

Parameters

stitchAsImageName

if not empty, will stitch all cached images to one image file of the given name

setTextColor()

void GraphicalDDLayer::setTextColor	(	const String &	color,
		const String &	bgColor = ""
	)

set text color and text background color

Parameters

color	DD_COLOR_XXX; DD_RGB_COLOR(...); can also be common "color name"
bgColor	empty background color means no background color

setTextFont() [1/2]

void GraphicalDDLayer::setTextFont

(

const String &

fontName

)

set font

Parameters

fontName	empty means default
textSize	0 means default

setTextFont() [2/2]

void GraphicalDDLayer::setTextFont ( const String &  fontName, int  textSize  )

inline

write()

void GraphicalDDLayer::write	(	const String &	text,
		bool	draw = false
	)

write text; will not auto wrap

Parameters

draw	means draw the text (in the heading direction)