Image display widget. More...

Data Structures
struct	gui_image_desc_t
	Image descriptor structure. More...

struct	gui_image_t
	Image object structure. More...

Functions
gui_handle_p	gui_image_create (gui_id_t id, float x, float y, float width, float height, gui_handle_p parent, gui_widget_evt_fn evt_fn, uint16_t flags)
	Create new image widget. More...

uint8_t	gui_image_setsource (gui_handle_p h, const gui_image_desc_t *img)
	Set image source to draw. More...

Detailed Description

Image display widget.

Image widget can display images of different color depth (ARGB8888, RGB888 or RGB565)

Image widget of 3 images. On the left is ARGB8888 (TrueColor with alpha), middle one is RGB888 and right one format is RGB565

Note: When image has transparent alpha channel then on each redraw, parent widget must be redrawn. In other words, each image with alpha channel which is not maximum (fully visible) must use more resources to redraw image widget by redrawing parent first. On above image is clearly visible how left image has transparency (source data) over button.

Example code for example above

Function Documentation

Create new image widget.

Parameters

[in]	id	Widget unique ID to use for identity for callback processing
[in]	x	Widget `X` position relative to parent widget
[in]	y	Widget `Y` position relative to parent widget
[in]	width	Widget width in units of pixels
[in]	height	Widget height in units of pixels
[in]	parent	Parent widget handle. Set to `NULL` to use current active parent widget
[in]	evt_fn	Custom widget callback function. Set to `NULL` to use default callback
[in]	flags	flags for widget creation

Set image source to draw.

Parameters

[in]	h	Widget handle
[in]	img	Image object. Set to `NULL` to clear image