wheel_menu.h File Reference

Detailed Description

The new and improved paint menu will work like this, thanks to the new touchpad:

1. When the touchpad is pressed, the canvas is saved (if not already otherwise?)
2. A ring selector is drawn over the center of the screen. It is divided into 4 sectors, with a dead-zone circle in the center. When the touchpad is moved towards a ring, it is highlighted.
3. There are multiple types of entries in the ring. Some will move to another menu when selected by releasing the touchpad, and some will allow pressing up/down and/or left/right on the D-pad to change values. If a sub-menu is selected, it can be exited by pressing B, or maybe there will be an "exit" ring?
4. Maybe there shuold be an option to have a "sticky" menu – instead of requiring you to hold the touchpad at the same time as going up/down, it would keep you in the menu until you hit B.
5. "Tool Ring" Layout:
   • The top sector is the tool selector, with left/right.
   • The left sector is the color selector, with up/down. And, maybe A or Left edits the color?
   • The right sector is the tool size selector, with left/right.
   • The bottom sector is the "..." or "Settings" menu
6. "Settings" layout:
   • Save
   • Load
   • New
   • Exit
   • ... edit palette?

Go to the source code of this file.

Data Structures
struct	wheelMenuRenderer_t
	Renderer for a menu wheel. More...

Enumerations
enum	wheelScrollDir_t {   NO_SCROLL = 0 , SCROLL_VERT = 1 , SCROLL_HORIZ = 2 , SCROLL_REVERSE = 4 ,   SCROLL_VERT_R = SCROLL_VERT | SCROLL_REVERSE , SCROLL_HORIZ_R = SCROLL_HORIZ | SCROLL_REVERSE , ZOOM_SUBMENU = 8 , ZOOM_GAUGE = 16 ,   ZOOM_CONVEYOR = 32 , MASK_ZOOM = 56 }
	Wheel scroll directions. More...
enum	wheelMenuShapeFlags_t { WM_SHAPE_DEFAULT = 0 , WM_SHAPE_ROUNDED_RECT = 1 , WM_SHAPE_SQUARE = 2 }

Functions
wheelMenuRenderer_t *	initWheelMenu (const font_t *font, uint16_t anchorAngle, const rectangle_t *textBox)
	Initializes and returns a new wheel menu with the default settings.
void	deinitWheelMenu (wheelMenuRenderer_t *renderer)
	Deinitialize and free all memory associated with the wheel menu renderer.
void	drawWheelMenu (menu_t *menu, wheelMenuRenderer_t *renderer, int64_t elapsedUs)
	Draw the wheel menu onto the screen.
void	wheelMenuSetItemInfo (wheelMenuRenderer_t *renderer, const char *label, const wsg_t *icon, uint8_t position, wheelScrollDir_t scrollDir)
	Sets the icon and ring position for the item with the given label.
void	wheelMenuSetItemColor (wheelMenuRenderer_t *renderer, const char *label, paletteColor_t selectedBg, paletteColor_t unselectedBg)
	Set both the selected and unselected background colors for the item with the given laebl.
void	wheelMenuSetItemTextIcon (wheelMenuRenderer_t *renderer, const char *label, const char *textIcon)
	Set a short text string to use a very short text tring as an item's icon, instead of an image.
void	wheelMenuSetItemSize (wheelMenuRenderer_t *renderer, const char *label, int16_t w, int16_t h, wheelMenuShapeFlags_t shapeFlags)
	Set specific dimensions for a menu item.
menu_t *	wheelMenuTouch (menu_t *menu, wheelMenuRenderer_t *renderer, uint16_t angle, uint16_t radius)
	Register a touchpad touch event with the wheel menu.
menu_t *	wheelMenuButton (menu_t *menu, wheelMenuRenderer_t *renderer, const buttonEvt_t *evt)
	Handle a button press, used for when a setting or option menu item can be scrolled.
menu_t *	wheelMenuTouchRelease (menu_t *menu, wheelMenuRenderer_t *renderer)
	Inform the wheel menu that the touchpad has been released, selecting the current item.
bool	wheelMenuActive (menu_t *menu, wheelMenuRenderer_t *renderer)
	Returns whether or not the wheel menu is active and should be drawn.

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Data Structure Documentation

wheelMenuRenderer_t

struct wheelMenuRenderer_t

Data Fields
const font_t *	font	The font to draw the menu labels with.
const rectangle_t *	textBox	A pointer to the text box to draw the selected item's label inside.
list_t	itemInfos	The list holding each item's information.
uint16_t	anchorAngle	The angle around which the 0th menu item will be centered.
uint16_t	x	The X position of the center of the menu.
uint16_t	y	The Y position of the center of the menu.
uint16_t	spokeR	The radial offset of the ring items.
uint16_t	unselR	The radius of unselected items' sectors.
uint16_t	selR	The radius of the selected sector.
paletteColor_t	textColor	Color of the selected menu item text label.
paletteColor_t	unselBgColor	Default background color of unselected items.
paletteColor_t	selBgColor	Default background color of selected items.
paletteColor_t	borderColor	Color of the circle borders.
bool	customBack	Whether the center "back" circle has been customized.
bool	touched	Whether the touchpad is currently touched.
bool	active	Whether the menu should be shown, regardless of touch.
bool	zoomed	Whether or not a settings item is selected.
bool	zoomBackSelected	Whether or not the center is selected while zoomed.
uint8_t	zoomValue	The current selected option/value if zoomed.
int32_t	timer	The timer for animations.

Enumeration Type Documentation

wheelScrollDir_t

enum wheelScrollDir_t

Wheel scroll directions.

Enumerator
NO_SCROLL	Do not allow setting values to scroll with buttons.
SCROLL_VERT	Allow scrolling setting value with Up/Down D-Pad buttons.
SCROLL_HORIZ	Allow scrolling setting value with Let/Right D-Pad buttons.
SCROLL_REVERSE	Flip the direction of scrolling.
SCROLL_VERT_R	Allow scrolling setting value with Up/Down, reversed.
SCROLL_HORIZ_R	Allow scrolling setting value with Up/Down, reversed.
ZOOM_SUBMENU	When zoomed to a settings item, display it as a submenu.
ZOOM_GAUGE	When zoomed to a settings item, display it as a gauge.
ZOOM_CONVEYOR	When zoomed to a settings item, display it as a rotating conveyor belt.
MASK_ZOOM	Mask for all zoom options.

wheelMenuShapeFlags_t

enum wheelMenuShapeFlags_t

Enumerator
WM_SHAPE_DEFAULT
WM_SHAPE_ROUNDED_RECT
WM_SHAPE_SQUARE

Function Documentation

initWheelMenu()

wheelMenuRenderer_t * initWheelMenu	(	const font_t *	font,
		uint16_t	anchorAngle,
		const rectangle_t *	textBox )

Initializes and returns a new wheel menu with the default settings.

Parameters

font	The font to draw menu item labels with
anchorAngle	The angle where the center of the first item will be anchored
textBox	If non-NULL, defines the bounding box where the current item label will be written

Returns

A newly allocated wheel menu renderer

deinitWheelMenu()

void deinitWheelMenu

(

wheelMenuRenderer_t *

renderer

)

Deinitialize and free all memory associated with the wheel menu renderer.

Parameters

renderer

The whele menu renderer to deinitialize

drawWheelMenu()

void drawWheelMenu	(	menu_t *	menu,
		wheelMenuRenderer_t *	renderer,
		int64_t	elapsedUs )

Draw the wheel menu onto the screen.

Parameters

menu	The current top-level menu to render
renderer	The wheel menu rendrer
elapsedUs	The number of microseconds elapsed since the last frame was drawn

wheelMenuSetItemInfo()

void wheelMenuSetItemInfo	(	wheelMenuRenderer_t *	renderer,
		const char *	label,
		const wsg_t *	icon,
		uint8_t	position,
		wheelScrollDir_t	scrollDir )

Sets the icon and ring position for the item with the given label.

Parameters

renderer	The wheel menu renderer
label	The label of the item to set the icon and position for
icon	The icon to use when drawing the menu item
position	The order of the item in the ring, centered around the anchor angle
scrollDir	Which axis this item should be scrollable in

wheelMenuSetItemColor()

void wheelMenuSetItemColor	(	wheelMenuRenderer_t *	renderer,
		const char *	label,
		paletteColor_t	selectedBg,
		paletteColor_t	unselectedBg )

Set both the selected and unselected background colors for the item with the given laebl.

Parameters

renderer	The wheel menu renderer
label	The label of the item to set the color of
selectedBg	The background color for the item when selected
unselectedBg	The background color for the item when not selected

wheelMenuSetItemTextIcon()

void wheelMenuSetItemTextIcon	(	wheelMenuRenderer_t *	renderer,
		const char *	label,
		const char *	textIcon )

Set a short text string to use a very short text tring as an item's icon, instead of an image.

Parameters

renderer	The wheel menu renderer
label	The label to set the icon for
textIcon	The short text string to draw as the icon text

wheelMenuSetItemSize()

void wheelMenuSetItemSize	(	wheelMenuRenderer_t *	renderer,
		const char *	label,
		int16_t	w,
		int16_t	h,
		wheelMenuShapeFlags_t	shapeFlags )

Set specific dimensions for a menu item.

Parameters

renderer	The whee lmenu renderer
label	The label of the item to configure dimensions for
w	The width of the item, or a negative number for "fit to content"
h	The height of the item, or a negative number for "fit to content"
shapeFlags	Extra flags for configuring the shape of the item

wheelMenuTouch()

menu_t * wheelMenuTouch	(	menu_t *	menu,
		wheelMenuRenderer_t *	renderer,
		uint16_t	angle,
		uint16_t	radius )

Register a touchpad touch event with the wheel menu.

Parameters

menu	The menu touched
renderer	The wheel menu renderer
angle	The touchpad touch angle
radius	The touchpad touch radius

Returns

menu_t* The current top-level menu, menuButton() would return

wheelMenuButton()

menu_t * wheelMenuButton	(	menu_t *	menu,
		wheelMenuRenderer_t *	renderer,
		const buttonEvt_t *	evt )

Handle a button press, used for when a setting or option menu item can be scrolled.

The direction of the scroll depends on the wheelScrollDir_t value passed to wheelMenuSetItemInfo()

Parameters

menu	The menu to accept the button
renderer	The wheel menu renderer
evt	The button event to be handled

Returns

menu_t* The new top-level menu after handling the button press

wheelMenuTouchRelease()

menu_t * wheelMenuTouchRelease	(	menu_t *	menu,
		wheelMenuRenderer_t *	renderer )

Inform the wheel menu that the touchpad has been released, selecting the current item.

Parameters

menu	The menu released
renderer	The wheel menu renderer

Returns

menu_t* The current top-level menu, as returned by menuButton()

wheelMenuActive()

bool wheelMenuActive	(	menu_t *	menu,
		wheelMenuRenderer_t *	renderer )

Returns whether or not the wheel menu is active and should be drawn.

Parameters

menu	The menu
renderer	The wheel menu renderer

Returns

true if the wheel menu is active

false if the wheel menu is not active