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nuttx-apps/examples/lvgldemo/tp_cal.c
Alin Jerpelea abf34e5d5a apps: examples: update license to Apache 
Gregory Nutt is the copyright holder for those files and he has submitted the
SGA as a result we can migrate the licenses to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2022-03-08 17:04:01 +02:00

333 lines
11 KiB
C
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/****************************************************************************
* apps/examples/touchscreen/tp_cal.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <lvgl/lvgl.h>
#include "tp.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define CIRCLE_SIZE 20
#define TP_MAX_VALUE 5000
/****************************************************************************
* Private Type Definitions
****************************************************************************/
enum tp_cal_state_e
{
TP_CAL_STATE_INIT,
TP_CAL_STATE_WAIT_TOP_LEFT,
TP_CAL_STATE_WAIT_TOP_RIGHT,
TP_CAL_STATE_WAIT_BOTTOM_RIGHT,
TP_CAL_STATE_WAIT_BOTTOM_LEFT,
TP_CAL_STATE_WAIT_LEAVE,
TP_CAL_STATE_READY,
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static void btn_click_action(FAR lv_obj_t *scr, lv_event_t event);
/****************************************************************************
* Private Data
****************************************************************************/
static enum tp_cal_state_e state;
static lv_point_t p[4];
static lv_obj_t *prev_scr;
static lv_obj_t *big_btn;
static lv_obj_t *label_main;
static lv_obj_t *circ_area;
static lv_theme_t *prev_theme;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: btn_click_action
*
* Description:
*
* Input Parameters:
* scr
* event
*
* Returned Value:
* ?
*
****************************************************************************/
static void btn_click_action(FAR lv_obj_t *scr, lv_event_t event)
{
if (event == LV_EVENT_CLICKED)
{
if (state == TP_CAL_STATE_WAIT_TOP_LEFT)
{
lv_indev_t *indev = lv_indev_get_act();
char buf[64];
#if LV_USE_ANIMATION
lv_anim_t a;
#endif
lv_indev_get_point(indev, &p[0]);
sprintf(buf, "x: %d\ny: %d", p[0].x, p[0].y);
lv_obj_t *label_coord = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(label_coord, buf);
lv_label_set_text(label_main, "Click the circle in\n"
"upper right-hand corner");
lv_obj_set_pos(label_main,
(LV_HOR_RES - lv_obj_get_width(label_main)) / 2,
(LV_VER_RES - lv_obj_get_height(label_main)) / 2);
#if LV_USE_ANIMATION
lv_anim_init(&a);
lv_anim_set_var(&a, circ_area);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)lv_obj_set_x);
lv_anim_set_time(&a, 500);
lv_anim_set_values(&a, 0, LV_HOR_RES - CIRCLE_SIZE);
lv_anim_set_delay(&a, 200);
lv_anim_start(&a);
#else
lv_obj_set_pos(circ_area, LV_HOR_RES - CIRCLE_SIZE, 0);
#endif
state = TP_CAL_STATE_WAIT_TOP_RIGHT;
}
else if (state == TP_CAL_STATE_WAIT_TOP_RIGHT)
{
lv_indev_t *indev = lv_indev_get_act();
char buf[64];
#if LV_USE_ANIMATION
lv_anim_t a;
#endif
lv_indev_get_point(indev, &p[1]);
sprintf(buf, "x: %d\ny: %d", p[1].x, p[1].y);
lv_obj_t *label_coord = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(label_coord, buf);
lv_obj_set_pos(label_coord,
LV_HOR_RES - lv_obj_get_width(label_coord),
0);
lv_label_set_text(label_main, "Click the circle in\n"
"lower right-hand corner");
lv_obj_set_pos(label_main,
(LV_HOR_RES - lv_obj_get_width(label_main)) / 2,
(LV_VER_RES - lv_obj_get_height(label_main)) / 2);
#if LV_USE_ANIMATION
lv_anim_init(&a);
lv_anim_set_var(&a, circ_area);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)lv_obj_set_y);
lv_anim_set_time(&a, 500);
lv_anim_set_values(&a, 0, LV_VER_RES - CIRCLE_SIZE);
lv_anim_set_delay(&a, 200);
lv_anim_start(&a);
#else
lv_obj_set_pos(circ_area,
LV_HOR_RES - CIRCLE_SIZE, LV_VER_RES - CIRCLE_SIZE);
#endif
state = TP_CAL_STATE_WAIT_BOTTOM_RIGHT;
}
else if (state == TP_CAL_STATE_WAIT_BOTTOM_RIGHT)
{
lv_indev_t *indev = lv_indev_get_act();
char buf[64];
#if LV_USE_ANIMATION
lv_anim_t a;
#endif
lv_indev_get_point(indev, &p[2]);
sprintf(buf, "x: %d\ny: %d", p[2].x, p[2].y);
lv_obj_t *label_coord = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(label_coord, buf);
lv_obj_set_pos(label_coord,
LV_HOR_RES - lv_obj_get_width(label_coord),
LV_VER_RES - lv_obj_get_height(label_coord));
lv_label_set_text(label_main, "Click the circle in\n"
"lower left-hand corner");
lv_obj_set_pos(label_main,
(LV_HOR_RES - lv_obj_get_width(label_main)) / 2,
(LV_VER_RES - lv_obj_get_height(label_main)) / 2);
#if LV_USE_ANIMATION
lv_anim_init(&a);
lv_anim_set_var(&a, circ_area);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)lv_obj_set_x);
lv_anim_set_time(&a, 500);
lv_anim_set_values(&a, LV_HOR_RES - CIRCLE_SIZE, 0);
lv_anim_set_delay(&a, 200);
lv_anim_start(&a);
#else
lv_obj_set_pos(circ_area, 0, LV_VER_RES - CIRCLE_SIZE);
#endif
state = TP_CAL_STATE_WAIT_BOTTOM_LEFT;
}
else if (state == TP_CAL_STATE_WAIT_BOTTOM_LEFT)
{
lv_indev_t *indev = lv_indev_get_act();
char buf[64];
lv_indev_get_point(indev, &p[3]);
lv_label_set_text(label_main, "Click the screen\n"
"to leave calibration");
lv_obj_set_pos(label_main,
(LV_HOR_RES - lv_obj_get_width(label_main)) / 2,
(LV_VER_RES - lv_obj_get_height(label_main)) / 2);
sprintf(buf, "x: %d\ny: %d", p[3].x, p[3].y);
lv_obj_t *label_coord = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(label_coord, buf);
lv_obj_set_pos(label_coord, 0,
LV_VER_RES - lv_obj_get_height(label_coord));
lv_obj_del(circ_area);
state = TP_CAL_STATE_WAIT_LEAVE;
}
else if (state == TP_CAL_STATE_WAIT_LEAVE)
{
lv_theme_set_act(prev_theme);
lv_scr_load(prev_scr);
tp_set_cal_values(&p[0], &p[1], &p[2], &p[3]);
state = TP_CAL_STATE_READY;
}
else if (state == TP_CAL_STATE_READY)
{
}
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: tp_cal_create
*
* Description:
* Create a touchpad calibration screen
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
****************************************************************************/
void tp_cal_create(void)
{
static lv_style_t style_circ;
static lv_style_t style_big_btn;
#if LV_USE_ANIMATION
lv_anim_t a;
#endif
state = TP_CAL_STATE_INIT;
prev_scr = lv_scr_act();
lv_theme_t *theme = LV_THEME_DEFAULT_INIT(LV_THEME_DEFAULT_COLOR_PRIMARY,
LV_THEME_DEFAULT_COLOR_SECONDARY,
LV_THEME_DEFAULT_FLAG,
LV_THEME_DEFAULT_FONT_SMALL,
LV_THEME_DEFAULT_FONT_NORMAL,
LV_THEME_DEFAULT_FONT_SUBTITLE,
LV_THEME_DEFAULT_FONT_TITLE);
prev_theme = lv_theme_get_act();
lv_theme_set_act(theme);
lv_obj_t *scr = lv_obj_create(NULL, NULL);
lv_obj_set_size(scr, TP_MAX_VALUE, TP_MAX_VALUE);
lv_scr_load(scr);
/* Create a big transparent button screen to receive clicks */
big_btn = lv_btn_create(lv_scr_act(), NULL);
lv_obj_set_size(big_btn, TP_MAX_VALUE, TP_MAX_VALUE);
lv_style_init(&style_big_btn);
lv_style_set_bg_opa(&style_big_btn, LV_STATE_DEFAULT | LV_STATE_PRESSED,
LV_OPA_TRANSP);
lv_obj_add_style(big_btn, LV_BTN_PART_MAIN, &style_big_btn);
lv_obj_set_event_cb(big_btn, btn_click_action);
lv_btn_set_layout(big_btn, LV_LAYOUT_OFF);
label_main = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(label_main, "Click the circle in\n"
"upper left-hand corner");
lv_label_set_align(label_main, LV_LABEL_ALIGN_CENTER);
lv_obj_set_pos(label_main, (LV_HOR_RES - lv_obj_get_width(label_main)) / 2,
(LV_VER_RES - lv_obj_get_height(label_main)) / 2);
lv_style_init(&style_circ);
lv_style_set_radius(&style_circ, LV_STATE_DEFAULT,
LV_RADIUS_CIRCLE);
lv_style_set_bg_color(&style_circ, LV_STATE_DEFAULT,
LV_COLOR_BLUE);
circ_area = lv_obj_create(lv_scr_act(), NULL);
lv_obj_set_size(circ_area, CIRCLE_SIZE, CIRCLE_SIZE);
lv_obj_add_style(circ_area, LV_OBJ_PART_MAIN, &style_circ);
lv_obj_set_click(circ_area, false);
#if LV_USE_ANIMATION
lv_anim_init(&a);
lv_anim_set_var(&a, circ_area);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)lv_obj_set_x);
lv_anim_set_time(&a, 200);
lv_anim_set_values(&a, LV_HOR_RES / 2, 0);
lv_anim_set_delay(&a, 200);
lv_anim_start(&a);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)lv_obj_set_y);
lv_anim_set_values(&a, LV_VER_RES / 2, 0);
lv_anim_start(&a);
#endif
state = TP_CAL_STATE_WAIT_TOP_LEFT;
}
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