Référence de la classe Adafruit_GFX_Button

A simple drawn button UI element. Plus de détails...

#include <Adafruit_GFX.h>

Fonctions membres publiques
	Adafruit_GFX_Button (void)
	Create a simple drawn button UI element. Plus de détails...
void	initButton (Adafruit_GFX *gfx, int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t outline, uint16_t fill, uint16_t textcolor, char *label, uint8_t textsize)
	Initialize button with our desired color/size/settings. Plus de détails...
void	initButtonUL (Adafruit_GFX *gfx, int16_t x1, int16_t y1, uint16_t w, uint16_t h, uint16_t outline, uint16_t fill, uint16_t textcolor, char *label, uint8_t textsize)
	Initialize button with our desired color/size/settings, with upper-left coordinates. Plus de détails...
void	drawButton (boolean inverted=false)
	Draw the button on the screen. Plus de détails...
boolean	contains (int16_t x, int16_t y)
	Helper to let us know if a coordinate is within the bounds of the button. Plus de détails...
void	press (boolean p)
	Sets the state of the button, should be done by some touch function. Plus de détails...
boolean	isPressed ()
	Query whether the button is currently pressed. Plus de détails...
boolean	justPressed ()
	Query whether the button was pressed since we last checked state. Plus de détails...
boolean	justReleased ()
	Query whether the button was released since we last checked state. Plus de détails...

Description détaillée

A simple drawn button UI element.

Documentation des constructeurs et destructeur

Adafruit_GFX_Button()

Adafruit_GFX_Button::Adafruit_GFX_Button

(

void

)

Create a simple drawn button UI element.

Documentation des fonctions membres

contains()

boolean Adafruit_GFX_Button::contains	(	int16_t	x,
		int16_t	y
	)

Helper to let us know if a coordinate is within the bounds of the button.

Paramètres

x	The X coordinate to check
y	The Y coordinate to check

Renvoie

True if within button graphics outline

drawButton()

void Adafruit_GFX_Button::drawButton

(

boolean

inverted = false

)

Draw the button on the screen.

Paramètres

inverted

Whether to draw with fill/text swapped to indicate 'pressed'

initButton()

void Adafruit_GFX_Button::initButton	(	Adafruit_GFX *	gfx,
		int16_t	x,
		int16_t	y,
		uint16_t	w,
		uint16_t	h,
		uint16_t	outline,
		uint16_t	fill,
		uint16_t	textcolor,
		char *	label,
		uint8_t	textsize
	)

Initialize button with our desired color/size/settings.

Paramètres

gfx	Pointer to our display so we can draw to it!
x	The X coordinate of the center of the button
y	The Y coordinate of the center of the button
w	Width of the buttton
h	Height of the buttton
outline	Color of the outline (16-bit 5-6-5 standard)
fill	Color of the button fill (16-bit 5-6-5 standard)
textcolor	Color of the button label (16-bit 5-6-5 standard)
label	Ascii string of the text inside the button
textsize	The font magnification of the label text

initButtonUL()

void Adafruit_GFX_Button::initButtonUL	(	Adafruit_GFX *	gfx,
		int16_t	x1,
		int16_t	y1,
		uint16_t	w,
		uint16_t	h,
		uint16_t	outline,
		uint16_t	fill,
		uint16_t	textcolor,
		char *	label,
		uint8_t	textsize
	)

Initialize button with our desired color/size/settings, with upper-left coordinates.

Paramètres

gfx	Pointer to our display so we can draw to it!
x1	The X coordinate of the Upper-Left corner of the button
y1	The Y coordinate of the Upper-Left corner of the button
w	Width of the buttton
h	Height of the buttton
outline	Color of the outline (16-bit 5-6-5 standard)
fill	Color of the button fill (16-bit 5-6-5 standard)
textcolor	Color of the button label (16-bit 5-6-5 standard)
label	Ascii string of the text inside the button
textsize	The font magnification of the label text

isPressed()

boolean Adafruit_GFX_Button::isPressed

(

)

Query whether the button is currently pressed.

Renvoie

True if pressed

justPressed()

boolean Adafruit_GFX_Button::justPressed

(

)

Query whether the button was pressed since we last checked state.

Renvoie

True if was not-pressed before, now is.

justReleased()

boolean Adafruit_GFX_Button::justReleased

(

)

Query whether the button was released since we last checked state.

Renvoie

True if was pressed before, now is not.

press()

void Adafruit_GFX_Button::press

(

boolean

p

)

Sets the state of the button, should be done by some touch function.

Paramètres

p	True for pressed, false for not.