A39模拟器

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liulin
2024-03-07 11:03:18 +08:00
parent cb2cc0d66f
commit 33e6eb45b3
1008 changed files with 2222717 additions and 0 deletions

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C
^
Image from variable and symbol
"""""""""""""""""""""""""""""""
.. lv_example:: widgets/img/lv_example_img_1
:language: c
Image recoloring
""""""""""""""""
.. lv_example:: widgets/img/lv_example_img_2
:language: c
Rotate and zoom
""""""""""""""""
.. lv_example:: widgets/img/lv_example_img_3
:language: c
Image offset and styling
""""""""""""""""""""""""
.. lv_example:: widgets/img/lv_example_img_4
:language: c
MicroPython
^^^^^^^^^^^
No examples yet.

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#include "../../lv_examples.h"
#if LV_USE_IMG && LV_BUILD_EXAMPLES
void lv_example_img_1(void)
{
LV_IMG_DECLARE(img_cogwheel_argb);
lv_obj_t * img1 = lv_img_create(lv_scr_act());
lv_img_set_src(img1, &img_cogwheel_argb);
lv_obj_align(img1, LV_ALIGN_CENTER, 0, -20);
lv_obj_set_size(img1, 200, 200);
lv_obj_t * img2 = lv_img_create(lv_scr_act());
lv_img_set_src(img2, LV_SYMBOL_OK "Accept");
lv_obj_align_to(img2, img1, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);
}
#endif

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from imagetools import get_png_info, open_png
# Register PNG image decoder
decoder = lv.img.decoder_create()
decoder.info_cb = get_png_info
decoder.open_cb = open_png
# Create a screen with a draggable image
with open('cogwheel.png','rb') as f:
png_data = f.read()
png_img_dsc = lv.img_dsc_t({
'data_size': len(png_data),
'data': png_data
})
scr = lv.scr_act()
# Create an image on the left using the decoder
# lv.img.cache_set_size(2)
img1 = lv.img(scr)
img1.align(scr, lv.ALIGN.CENTER, 0, -20)
img1.set_src(png_img_dsc)
img2 = lv.img(scr)
img2.set_src(lv.SYMBOL.OK + "Accept")
img2.align(img1, lv.ALIGN.OUT_BOTTOM_MID, 0, 20)

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#include "../../lv_examples.h"
#if LV_USE_IMG && LV_USE_SLIDER && LV_BUILD_EXAMPLES
static lv_obj_t * create_slider(lv_color_t color);
static void slider_event_cb(lv_event_t * e);
static lv_obj_t * red_slider, * green_slider, * blue_slider, * intense_slider;
static lv_obj_t * img1;
/**
* Demonstrate runtime image re-coloring
*/
void lv_example_img_2(void)
{
/*Create 4 sliders to adjust RGB color and re-color intensity*/
red_slider = create_slider(lv_palette_main(LV_PALETTE_RED));
green_slider = create_slider(lv_palette_main(LV_PALETTE_GREEN));
blue_slider = create_slider(lv_palette_main(LV_PALETTE_BLUE));
intense_slider = create_slider(lv_palette_main(LV_PALETTE_GREY));
lv_slider_set_value(red_slider, LV_OPA_20, LV_ANIM_OFF);
lv_slider_set_value(green_slider, LV_OPA_90, LV_ANIM_OFF);
lv_slider_set_value(blue_slider, LV_OPA_60, LV_ANIM_OFF);
lv_slider_set_value(intense_slider, LV_OPA_50, LV_ANIM_OFF);
lv_obj_align(red_slider, LV_ALIGN_LEFT_MID, 25, 0);
lv_obj_align_to(green_slider, red_slider, LV_ALIGN_OUT_RIGHT_MID, 25, 0);
lv_obj_align_to(blue_slider, green_slider, LV_ALIGN_OUT_RIGHT_MID, 25, 0);
lv_obj_align_to(intense_slider, blue_slider, LV_ALIGN_OUT_RIGHT_MID, 25, 0);
/*Now create the actual image*/
LV_IMG_DECLARE(img_cogwheel_argb)
img1 = lv_img_create(lv_scr_act());
lv_img_set_src(img1, &img_cogwheel_argb);
lv_obj_align(img1, LV_ALIGN_RIGHT_MID, -20, 0);
lv_event_send(intense_slider, LV_EVENT_VALUE_CHANGED, NULL);
}
static void slider_event_cb(lv_event_t * e)
{
LV_UNUSED(e);
/*Recolor the image based on the sliders' values*/
lv_color_t color = lv_color_make(lv_slider_get_value(red_slider), lv_slider_get_value(green_slider), lv_slider_get_value(blue_slider));
lv_opa_t intense = lv_slider_get_value(intense_slider);
lv_obj_set_style_img_recolor_opa(img1, intense, 0);
lv_obj_set_style_img_recolor(img1, color, 0);
}
static lv_obj_t * create_slider(lv_color_t color)
{
lv_obj_t * slider = lv_slider_create(lv_scr_act());
lv_slider_set_range(slider, 0, 255);
lv_obj_set_size(slider, 10, 200);
lv_obj_set_style_bg_color(slider, color, LV_PART_KNOB);
lv_obj_set_style_bg_color(slider, lv_color_darken(color, LV_OPA_40), LV_PART_INDICATOR);
lv_obj_add_event_cb(slider, slider_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
return slider;
}
#endif

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#include "../../lv_examples.h"
#if LV_USE_IMG && LV_BUILD_EXAMPLES
static void set_angle(void * img, int32_t v)
{
lv_img_set_angle(img, v);
}
static void set_zoom(void * img, int32_t v)
{
lv_img_set_zoom(img, v);
}
/**
* Show transformations (zoom and rotation) using a pivot point.
*/
void lv_example_img_3(void)
{
LV_IMG_DECLARE(img_cogwheel_argb);
/*Now create the actual image*/
lv_obj_t * img = lv_img_create(lv_scr_act());
lv_img_set_src(img, &img_cogwheel_argb);
lv_obj_align(img, LV_ALIGN_CENTER, 50, 50);
lv_img_set_pivot(img, 0, 0); /*Rotate around the top left corner*/
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, img);
lv_anim_set_exec_cb(&a, set_angle);
lv_anim_set_values(&a, 0, 3600);
lv_anim_set_time(&a, 5000);
lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
lv_anim_start(&a);
lv_anim_set_exec_cb(&a, set_zoom);
lv_anim_set_values(&a, 128, 256);
lv_anim_set_playback_time(&a, 3000);
lv_anim_start(&a);
}
#endif

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#include "../../lv_examples.h"
#if LV_USE_IMG && LV_BUILD_EXAMPLES
static void ofs_y_anim(void * img, int32_t v)
{
lv_img_set_offset_y(img, v);
}
/**
* Image styling and offset
*/
void lv_example_img_4(void)
{
LV_IMG_DECLARE(img_skew_strip);
static lv_style_t style;
lv_style_init(&style);
lv_style_set_bg_color(&style, lv_palette_main(LV_PALETTE_YELLOW));
lv_style_set_bg_opa(&style, LV_OPA_COVER);
lv_style_set_img_recolor_opa(&style, LV_OPA_COVER);
lv_style_set_img_recolor(&style, lv_color_black());
lv_obj_t * img = lv_img_create(lv_scr_act());
lv_obj_add_style(img, &style, 0);
lv_img_set_src(img, &img_skew_strip);
lv_obj_set_size(img, 150, 100);
lv_obj_center(img);
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, img);
lv_anim_set_exec_cb(&a, ofs_y_anim);
lv_anim_set_values(&a, 0, 100);
lv_anim_set_time(&a, 3000);
lv_anim_set_playback_time(&a, 500);
lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
lv_anim_start(&a);
}
#endif