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feat(event) add event filter to lv_event_send

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This commit is contained in:
Gabor Kiss-Vamosi
2021-04-19 11:15:28 +02:00
parent ddea17afe2
commit bbfcb2454e
43 changed files with 249 additions and 306 deletions
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59
examples/widgets/chart/lv_example_chart_2.c
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@@ -5,45 +5,42 @@ static lv_obj_t * chart1;
static lv_chart_series_t * ser1;
static lv_chart_series_t * ser2;
static void event_cb(lv_event_t * e)
static void draw_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
/*Add the faded area before the lines are drawn*/
if(code == LV_EVENT_DRAW_PART_BEGIN) {
lv_obj_draw_dsc_t * dsc = lv_event_get_param(e);
if(dsc->part != LV_PART_ITEMS) return;
if(!dsc->p1 || !dsc->p2) return;
lv_obj_draw_dsc_t * dsc = lv_event_get_param(e);
if(dsc->part != LV_PART_ITEMS) return;
if(!dsc->p1 || !dsc->p2) return;
/*Add a line mask that keeps the area below the line*/
lv_draw_mask_line_param_t line_mask_param;
lv_draw_mask_line_points_init(&line_mask_param, dsc->p1->x, dsc->p1->y, dsc->p2->x, dsc->p2->y, LV_DRAW_MASK_LINE_SIDE_BOTTOM);
int16_t line_mask_id = lv_draw_mask_add(&line_mask_param, NULL);
/*Add a line mask that keeps the area below the line*/
lv_draw_mask_line_param_t line_mask_param;
lv_draw_mask_line_points_init(&line_mask_param, dsc->p1->x, dsc->p1->y, dsc->p2->x, dsc->p2->y, LV_DRAW_MASK_LINE_SIDE_BOTTOM);
int16_t line_mask_id = lv_draw_mask_add(&line_mask_param, NULL);
/*Add a fade effect: transparent bottom covering top*/
lv_coord_t h = lv_obj_get_height(obj);
lv_draw_mask_fade_param_t fade_mask_param;
lv_draw_mask_fade_init(&fade_mask_param, &obj->coords, LV_OPA_COVER, obj->coords.y1 + h / 8, LV_OPA_TRANSP,obj->coords.y2);
int16_t fade_mask_id = lv_draw_mask_add(&fade_mask_param, NULL);
/*Add a fade effect: transparent bottom covering top*/
lv_coord_t h = lv_obj_get_height(obj);
lv_draw_mask_fade_param_t fade_mask_param;
lv_draw_mask_fade_init(&fade_mask_param, &obj->coords, LV_OPA_COVER, obj->coords.y1 + h / 8, LV_OPA_TRANSP,obj->coords.y2);
int16_t fade_mask_id = lv_draw_mask_add(&fade_mask_param, NULL);
/*Draw a rectangle that will be affected by the mask*/
lv_draw_rect_dsc_t draw_rect_dsc;
lv_draw_rect_dsc_init(&draw_rect_dsc);
draw_rect_dsc.bg_opa = LV_OPA_20;
draw_rect_dsc.bg_color = dsc->line_dsc->color;
/*Draw a rectangle that will be affected by the mask*/
lv_draw_rect_dsc_t draw_rect_dsc;
lv_draw_rect_dsc_init(&draw_rect_dsc);
draw_rect_dsc.bg_opa = LV_OPA_20;
draw_rect_dsc.bg_color = dsc->line_dsc->color;
lv_area_t a;
a.x1 = dsc->p1->x;
a.x2 = dsc->p2->x - 1;
a.y1 = LV_MIN(dsc->p1->y, dsc->p2->y);
a.y2 = obj->coords.y2;
lv_draw_rect(&a, dsc->clip_area, &draw_rect_dsc);
lv_area_t a;
a.x1 = dsc->p1->x;
a.x2 = dsc->p2->x - 1;
a.y1 = LV_MIN(dsc->p1->y, dsc->p2->y);
a.y2 = obj->coords.y2;
lv_draw_rect(&a, dsc->clip_area, &draw_rect_dsc);
/*Remove the masks*/
lv_draw_mask_remove_id(line_mask_id);
lv_draw_mask_remove_id(fade_mask_id);
}
/*Remove the masks*/
lv_draw_mask_remove_id(line_mask_id);
lv_draw_mask_remove_id(fade_mask_id);
}
static void add_data(lv_timer_t * timer)
@@ -68,7 +65,7 @@ void lv_example_chart_2(void)
lv_obj_center(chart1);
lv_chart_set_type(chart1, LV_CHART_TYPE_LINE); /*Show lines and points too*/
lv_obj_add_event_cb(chart1, event_cb, NULL);
lv_obj_add_event_cb(chart1, draw_event_cb, LV_EVENT_DRAW_PART_BEGIN, NULL);
lv_chart_set_update_mode(chart1, LV_CHART_UPDATE_MODE_CIRCULAR);
/*Add two data series*/

15
examples/widgets/chart/lv_example_chart_3.c
View File

@@ -1,15 +1,12 @@
#include "../../lv_examples.h"
#if LV_USE_CHART && LV_BUILD_EXAMPLES
static void event_cb(lv_event_t * e)
static void draw_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
if(code == LV_EVENT_DRAW_PART_BEGIN) {
lv_obj_draw_dsc_t * dsc = lv_event_get_param(e);
if(dsc->part == LV_PART_TICKS && dsc->id == LV_CHART_AXIS_X) {
const char * month[] = {"Jan", "Febr", "March", "Apr", "May", "Jun", "July", "Aug", "Sept", "Oct", "Nov", "Dec"};
lv_snprintf(dsc->text, sizeof(dsc->text), "%s", month[dsc->value]);
}
lv_obj_draw_dsc_t * dsc = lv_event_get_param(e);
if(dsc->part == LV_PART_TICKS && dsc->id == LV_CHART_AXIS_X) {
const char * month[] = {"Jan", "Febr", "March", "Apr", "May", "Jun", "July", "Aug", "Sept", "Oct", "Nov", "Dec"};
lv_snprintf(dsc->text, sizeof(dsc->text), "%s", month[dsc->value]);
}
}
@@ -27,7 +24,7 @@ void lv_example_chart_3(void)
lv_chart_set_range(chart, LV_CHART_AXIS_PRIMARY_Y, 0, 100);
lv_chart_set_range(chart, LV_CHART_AXIS_SECONDARY_Y, 0, 400);
lv_chart_set_point_count(chart, 12);
lv_obj_add_event_cb(chart, event_cb, NULL);
lv_obj_add_event_cb(chart, draw_event_cb, LV_EVENT_DRAW_PART_BEGIN, NULL);
/*Add ticks and label to every axis*/
lv_chart_set_axis_tick(chart, LV_CHART_AXIS_X, 10, 5, 12, 3, true, 40);

2
examples/widgets/chart/lv_example_chart_4.c
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@@ -64,7 +64,7 @@ void lv_example_chart_4(void)
lv_obj_set_size(chart, 200, 150);
lv_obj_center(chart);
lv_obj_add_event_cb(chart, event_cb, NULL);
lv_obj_add_event_cb(chart, event_cb, LV_EVENT_ALL, NULL);
lv_obj_refresh_ext_draw_size(chart);
/*Zoom in a little in X*/

17
examples/widgets/chart/lv_example_chart_5.c
View File

@@ -48,21 +48,16 @@ static const lv_coord_t ecg_sample[] = {
static void slider_x_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
int32_t v = lv_slider_get_value(obj);
lv_chart_set_zoom_x(chart, v);
}
int32_t v = lv_slider_get_value(obj);
lv_chart_set_zoom_x(chart, v);
}
static void slider_y_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
lv_chart_set_zoom_y(chart, lv_slider_get_value(obj));
}
int32_t v = lv_slider_get_value(obj);
lv_chart_set_zoom_y(chart, v);
}
/**
@@ -90,13 +85,13 @@ void lv_example_chart_5(void)
lv_obj_t * slider;
slider = lv_slider_create(lv_scr_act());
lv_slider_set_range(slider, LV_IMG_ZOOM_NONE, LV_IMG_ZOOM_NONE * 10);
lv_obj_add_event_cb(slider, slider_x_event_cb, NULL);
lv_obj_add_event_cb(slider, slider_x_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
lv_obj_set_size(slider, lv_obj_get_width(chart), 10);
lv_obj_align_to(slider, chart, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);
slider = lv_slider_create(lv_scr_act());
lv_slider_set_range(slider, LV_IMG_ZOOM_NONE, LV_IMG_ZOOM_NONE * 10);
lv_obj_add_event_cb(slider, slider_y_event_cb, NULL);
lv_obj_add_event_cb(slider, slider_y_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
lv_obj_set_size(slider, 10, lv_obj_get_height(chart));
lv_obj_align_to(slider, chart, LV_ALIGN_OUT_RIGHT_MID, 20, 0);
}

2
examples/widgets/chart/lv_example_chart_6.c
View File

@@ -67,7 +67,7 @@ void lv_example_chart_6(void)
lv_chart_set_axis_tick(chart, LV_CHART_AXIS_PRIMARY_Y, 10, 5, 6, 5, true, 40);
lv_chart_set_axis_tick(chart, LV_CHART_AXIS_X, 10, 5, 10, 1, true, 30);
lv_obj_add_event_cb(chart, event_cb, NULL);
lv_obj_add_event_cb(chart, event_cb, LV_EVENT_ALL, NULL);
lv_obj_refresh_ext_draw_size(chart);
cursor = lv_chart_add_cursor(chart, lv_color_blue(), LV_DIR_LEFT | LV_DIR_BOTTOM);