/**
* Create object to see how they change from the anti aliasing
* Modify LV_ANTIALIAS and LV_FONT_ANTIALIAS to see what is changing
*/
void lv_tutorial_antialiasing(void)
{
lv_obj_t *label;
static lv_style_t style1;
lv_style_copy(&style1, &lv_style_btn_rel);
style1.body.radius = 20;
style1.body.border.width = 8;
lv_obj_t *btn1;
btn1 = lv_btn_create(lv_scr_act(), NULL);
lv_obj_set_pos(btn1, 10, 10);
lv_obj_set_size(btn1, 160, 80);
lv_btn_set_style(btn1, LV_BTN_STYLE_REL, &style1);
label = lv_label_create(btn1, NULL);
lv_label_set_text(label, "Button");
lv_img_create_file("red_flower", img_red_flower); /*Create a file in the RAM FS*/
/*Crate an image which is NOT automatically upscaled to compensate the anti aliasing*/
lv_obj_t *img_normal = lv_img_create(lv_scr_act(), NULL);
lv_img_set_file(img_normal, "U:/red_flower");
lv_img_set_upscale(img_normal, false);
lv_obj_align(img_normal, btn1, LV_ALIGN_OUT_RIGHT_TOP, 10, 0);
/*Crate an image which is automatically upscaled to compensate the anti aliasing*/
lv_obj_t *img_scaled = lv_img_create(lv_scr_act(), img_normal); /*Crate an image object*/
lv_img_set_upscale(img_scaled, true);
lv_obj_align(img_scaled, img_normal, LV_ALIGN_OUT_RIGHT_TOP, 10, 0);
}
static void create_tab2(lv_theme_t * th, lv_obj_t *parent)
{
lv_coord_t w = lv_page_get_scrl_width(parent);
lv_obj_t *chart = lv_chart_create(parent, NULL);
lv_obj_set_size(chart, w / 3, LV_VER_RES / 3);
lv_obj_set_pos(chart, LV_DPI / 10, LV_DPI / 10);
lv_chart_series_t * s1 = lv_chart_add_series(chart, LV_COLOR_RED);
lv_chart_set_next(chart, s1, 30);
lv_chart_set_next(chart, s1, 20);
lv_chart_set_next(chart, s1, 10);
lv_chart_set_next(chart, s1, 12);
lv_chart_set_next(chart, s1, 20);
lv_chart_set_next(chart, s1, 27);
lv_chart_set_next(chart, s1, 35);
lv_chart_set_next(chart, s1, 55);
lv_chart_set_next(chart, s1, 70);
lv_chart_set_next(chart, s1, 75);
lv_obj_t *gauge = lv_gauge_create(parent, NULL);
lv_gauge_set_value(gauge, 0, 40);
lv_obj_set_size(gauge, w / 4, w / 4);
lv_obj_align(gauge, chart, LV_ALIGN_OUT_BOTTOM_LEFT, 0, LV_DPI / 4);
lv_obj_t *ta = lv_ta_create(parent, NULL);
lv_obj_set_size(ta, w / 3, LV_VER_RES / 4);
lv_obj_align(ta, NULL, LV_ALIGN_IN_TOP_RIGHT, -LV_DPI / 10, LV_DPI / 10);
lv_ta_set_cursor_type(ta, LV_CURSOR_BLOCK);
lv_obj_t *kb = lv_kb_create(parent, NULL);
lv_obj_set_size(kb, 2 * w / 3, LV_VER_RES / 3);
lv_obj_align(kb, ta, LV_ALIGN_OUT_BOTTOM_RIGHT, 0, LV_DPI);
lv_kb_set_ta(kb, ta);
}
/**
* Create a demo application
*/
void demo_create(void)
{
#if LV_DEMO_WALLPAPER
lv_obj_t *wp = lv_img_create(lv_scr_act(), NULL);
lv_img_set_src(wp, &img_bubble_pattern);
lv_obj_set_width(wp, LV_HOR_RES * 4);
lv_obj_set_protect(wp, LV_PROTECT_POS);
#endif
static lv_style_t style_tv_btn_bg;
lv_style_copy(&style_tv_btn_bg, &lv_style_plain);
style_tv_btn_bg.body.main_color = LV_COLOR_HEX(0x487fb7);
style_tv_btn_bg.body.grad_color = LV_COLOR_HEX(0x487fb7);
style_tv_btn_bg.body.padding.ver = 0;
static lv_style_t style_tv_btn_rel;
lv_style_copy(&style_tv_btn_rel, &lv_style_btn_rel);
style_tv_btn_rel.body.empty = 1;
style_tv_btn_rel.body.border.width = 0;
static lv_style_t style_tv_btn_pr;
lv_style_copy(&style_tv_btn_pr, &lv_style_btn_pr);
style_tv_btn_pr.body.radius = 0;
style_tv_btn_pr.body.opa = LV_OPA_50;
style_tv_btn_pr.body.main_color = LV_COLOR_WHITE;
style_tv_btn_pr.body.grad_color = LV_COLOR_WHITE;
style_tv_btn_pr.body.border.width = 0;
style_tv_btn_pr.text.color = LV_COLOR_GRAY;
lv_obj_t *tv = lv_tabview_create(lv_scr_act(), NULL);
#if LV_DEMO_WALLPAPER
lv_obj_set_parent(wp, ((lv_tabview_ext_t *) tv->ext_attr)->content);
lv_obj_set_pos(wp, 0, -5);
#endif
lv_obj_t *tab1 = lv_tabview_add_tab(tv, "Write");
lv_obj_t *tab2 = lv_tabview_add_tab(tv, "List");
lv_obj_t *tab3 = lv_tabview_add_tab(tv, "Chart");
#if LV_DEMO_WALLPAPER == 0
/*Blue bg instead of wallpaper*/
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_BG, &style_tv_btn_bg);
#endif
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_BTN_BG, &style_tv_btn_bg);
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_INDIC, &lv_style_plain);
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_BTN_REL, &style_tv_btn_rel);
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_BTN_PR, &style_tv_btn_pr);
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_BTN_TGL_REL, &style_tv_btn_rel);
lv_tabview_set_style(tv, LV_TABVIEW_STYLE_BTN_TGL_PR, &style_tv_btn_pr);
write_create(tab1);
list_create(tab2);
chart_create(tab3);
#if LV_DEMO_SLIDE_SHOW
lv_task_create(tab_switcher, 3000, LV_TASK_PRIO_MID, tv);
#endif
}
/**
* Set a cursor for a pointer input device (for LV_INPUT_TYPE_POINTER and LV_INPUT_TYPE_BUTTON)
* @param indev pointer to an input device
* @param cur_obj pointer to an object to be used as cursor
*/
void lv_indev_set_cursor(lv_indev_t * indev, lv_obj_t * cur_obj)
{
if(indev->driver.type != LV_INDEV_TYPE_POINTER) return;
indev->cursor = cur_obj;
lv_obj_set_parent(indev->cursor, lv_layer_sys());
lv_obj_set_pos(indev->cursor, indev->proc.act_point.x, indev->proc.act_point.y);
}
/**
* Create message boxes to test their functionalities
*/
void lv_test_mbox_1(void)
{
/* Default object */
lv_obj_t *mbox1 = lv_mbox_create(lv_scr_act(), NULL);
lv_obj_set_pos(mbox1, 10, 10);
/*Add buttons and modify text*/
static const char * btns2[] = {"Ok", "Cancel", ""};
lv_obj_t *mbox2 = lv_mbox_create(lv_scr_act(), NULL);
lv_mbox_add_btns(mbox2, btns2, NULL);
lv_mbox_set_text(mbox2, "Message");
lv_obj_set_width(mbox2, LV_HOR_RES / 2);
lv_obj_align(mbox2, mbox1, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 10);
/*Add styles*/
static lv_style_t bg;
static lv_style_t btn_bg;
lv_style_copy(&bg, &lv_style_pretty);
lv_style_copy(&btn_bg, &lv_style_pretty);
bg.body.padding.hor = 20;
bg.body.padding.ver = 20;
bg.body.padding.inner = 20;
bg.body.main_color = LV_COLOR_BLACK;
bg.body.grad_color = LV_COLOR_MARRON;
bg.text.color = LV_COLOR_WHITE;
btn_bg.body.padding.hor = 10;
btn_bg.body.padding.ver = 5;
btn_bg.body.padding.inner = 40;
btn_bg.body.empty = 1;
btn_bg.body.border.color = LV_COLOR_WHITE;
btn_bg.text.color = LV_COLOR_WHITE;
static lv_style_t btn_rel;
lv_style_copy(&btn_rel, &lv_style_btn_rel);
btn_rel.body.empty = 1;
btn_rel.body.border.color = LV_COLOR_WHITE;
lv_obj_t *mbox3 = lv_mbox_create(lv_scr_act(), mbox2);
lv_mbox_set_style(mbox3, LV_MBOX_STYLE_BTN_REL, &btn_rel);
lv_mbox_set_style(mbox3, LV_MBOX_STYLE_BTN_BG, &btn_bg);
lv_mbox_set_style(mbox3, LV_MBOX_STYLE_BG, &bg);
lv_obj_align(mbox3, mbox1, LV_ALIGN_OUT_RIGHT_TOP, 10, 0);
lv_mbox_set_action(mbox3, mbox_action);
/*Copy with styles and set button width*/
lv_obj_t *mbox4 = lv_mbox_create(lv_scr_act(), mbox3);
lv_mbox_set_text(mbox4, "A quite long message text which is\n"
"manually broken into multiple lines");
static const char * btns3[] = {"Ok", "Cancel", "Third", ""};
lv_mbox_add_btns(mbox4, btns3, mbox_action);
lv_obj_align(mbox4, mbox3, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 10);
}
/**
* Create windows to test their functionalities
*/
void lv_test_win_1(void)
{
lv_obj_t *win1 = lv_win_create(lv_scr_act(), NULL);
lv_obj_set_size(win1, LV_HOR_RES / 2 - LV_DPI / 20, LV_VER_RES / 2 - LV_DPI / 20);
lv_obj_t *win2 = lv_win_create(lv_scr_act(), win1);
lv_obj_align(win2, NULL, LV_ALIGN_IN_TOP_RIGHT, 0, 0);
lv_win_set_title(win2, "Random title");
lv_win_add_btn(win2, SYMBOL_CLOSE, NULL);
lv_win_add_btn(win2, SYMBOL_OK, NULL);
lv_win_add_btn(win2, SYMBOL_EDIT, NULL);
lv_obj_t *label = lv_label_create(win2, NULL);
lv_obj_set_pos(label, 10, 10);
lv_label_set_text(label, "Long\n\n\ntext\n\n\nto\n\n\nsee\n\n\nthe\n\n\nscrollbars");
static lv_style_t header;
lv_style_copy(&header, &lv_style_plain);
header.body.main_color = LV_COLOR_RED;
header.body.grad_color = LV_COLOR_MARRON;
header.body.padding.inner = 0;
header.text.color = LV_COLOR_WHITE;
lv_obj_t *win3 = lv_win_create(lv_scr_act(), win2);
lv_obj_align(win3, NULL, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
lv_win_set_style(win3, LV_WIN_STYLE_HEADER, &header);
lv_win_set_style(win3, LV_WIN_STYLE_BTN_REL, &lv_style_transp);
lv_win_set_style(win3, LV_WIN_STYLE_CONTENT_BG, &lv_style_plain_color);
lv_win_set_style(win3, LV_WIN_STYLE_CONTENT_SCRL, &lv_style_plain);
lv_win_set_style(win3, LV_WIN_STYLE_BG, &lv_style_plain_color);
lv_win_set_btn_size(win3, LV_DPI / 3);
label = lv_label_create(win3, NULL);
lv_obj_set_pos(label, 10, 10);
lv_label_set_text(label, "Styled window\n\nThe content background has\ndifferent color");
lv_obj_t *win4 = lv_win_create(lv_scr_act(), win3);
lv_obj_align(win4, NULL, LV_ALIGN_IN_BOTTOM_RIGHT, 0, 0);
}
static void create_tab3(lv_theme_t * th, lv_obj_t *parent)
{
lv_obj_t *win = lv_win_create(parent, NULL);
lv_win_add_btn(win, SYMBOL_CLOSE, lv_win_close_action);
lv_win_add_btn(win, SYMBOL_DOWN, NULL);
lv_obj_set_size(win, LV_HOR_RES / 2, LV_VER_RES / 2);
lv_obj_set_pos(win, LV_DPI / 20, LV_DPI / 20);
lv_obj_set_top(win, true);
lv_obj_t *label = lv_label_create(win, NULL);
lv_label_set_text(label, "Label in the window");
lv_obj_t *lmeter = lv_lmeter_create(win, NULL);
lv_obj_align(lmeter, label, LV_ALIGN_OUT_BOTTOM_LEFT, 0, LV_DPI / 2);
lv_lmeter_set_value(lmeter, 70);
lv_obj_t *led1 = lv_led_create(win, NULL);
lv_obj_align(led1, lmeter, LV_ALIGN_OUT_RIGHT_MID, LV_DPI / 2, 0);
lv_led_on(led1);
lv_obj_t *led2 = lv_led_create(win, NULL);
lv_obj_align(led2, led1, LV_ALIGN_OUT_RIGHT_MID, LV_DPI / 2, 0);
lv_led_off(led2);
lv_obj_t *page = lv_page_create(parent, NULL);
lv_obj_set_size(page, LV_HOR_RES / 3, LV_VER_RES / 2);
lv_obj_set_top(page, true);
lv_obj_align(page, win, LV_ALIGN_IN_TOP_RIGHT, LV_DPI, LV_DPI);
label = lv_label_create(page, NULL);
lv_label_set_text(label, "Lorem ipsum dolor sit amet, repudiare voluptatibus pri cu.\n"
"Ei mundi pertinax posidonium eum, cum tempor maiorum at,\n"
"mea fuisset assentior ad. Usu cu suas civibus iudicabit.\n"
"Eum eu congue tempor facilisi. Tale hinc unum te vim.\n"
"Te cum populo animal eruditi, labitur inciderint at nec.\n\n"
"Eius corpora et quo. Everti voluptaria instructior est id,\n"
"vel in falli primis. Mea ei porro essent admodum,\n"
"his ei malis quodsi, te quis aeterno his.\n"
"Qui tritani recusabo reprehendunt ne,\n"
"per duis explicari at. Simul mediocritatem mei et.");
//lv_label_set_long_mode(label, LV_LABEL_LONG_BREAK);
//lv_obj_set_width(label, lv_page_get_scrl_width(page));
lv_page_set_scrl_fit(page, true, true);
static const char * mbox_btn_map[] = {"\211", "\222Got it!", "\211", ""};
lv_obj_t *mbox = lv_mbox_create(parent, NULL);
lv_mbox_set_text(mbox, "Click on the window or the page to bring it to the foreground");
lv_mbox_add_btns(mbox, mbox_btn_map, NULL);
lv_obj_set_top(mbox, true);
}
/**
* Create lists to test their functionalities
*/
void lv_test_list_1(void)
{
/* Default object. It will be an empty list*/
list1 = lv_list_create(lv_scr_act(), NULL);
lv_obj_set_pos(list1, 10, 10);
list2 = lv_list_create(lv_scr_act(), NULL);
lv_obj_align(list2, list1, LV_ALIGN_OUT_RIGHT_TOP, 20, 0);
lv_list_add(list2, SYMBOL_FILE, "File", NULL);
lv_list_add(list2, SYMBOL_DIRECTORY, "Directory", NULL);
lv_list_add(list2, &img_flower_icon, "Image icon", NULL);
lv_obj_set_width(list2, 100);
list3 = lv_list_create(lv_scr_act(), list2);
lv_obj_align(list3, list2, LV_ALIGN_OUT_RIGHT_TOP, 20, 0);
lv_list_add(list3, NULL, "No icon", NULL);
lv_list_add(list3, SYMBOL_CLOSE, "", NULL);
lv_list_add(list3, SYMBOL_UP, "Up", NULL);
lv_list_add(list3, SYMBOL_DOWN, "Down", NULL);
static lv_style_t sb;
static lv_style_t bg;
lv_style_copy(&sb, &lv_style_pretty_color);
lv_style_copy(&bg, &lv_style_pretty_color);
sb.body.padding.hor = -10;
sb.body.padding.inner = 10;
bg.body.padding.hor = 20;
list4 = lv_list_create(lv_scr_act(), list3);
lv_list_set_style(list4, LV_LIST_STYLE_BG, &bg);
lv_list_set_style(list4, LV_LIST_STYLE_SB, &sb);
lv_obj_align(list4, list3, LV_ALIGN_OUT_RIGHT_TOP, 20, 0);
lv_obj_set_width(list4, 200);
/*Add list up/down buttons*/
lv_obj_t *btn_up = lv_btn_create(lv_scr_act(), NULL);
lv_obj_align(btn_up, list1, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 10);
lv_btn_set_action(btn_up, LV_BTN_ACTION_CLICK, list_move);
lv_obj_set_free_num(btn_up, 0);
lv_obj_t *label = lv_label_create(btn_up, NULL);
lv_label_set_text(label, SYMBOL_UP);
lv_obj_t *btn_down = lv_btn_create(lv_scr_act(), btn_up);
lv_obj_align(btn_down, btn_up, LV_ALIGN_OUT_RIGHT_MID, 10, 0);
lv_obj_set_free_num(btn_down, 1);
label = lv_label_create(btn_down, NULL);
lv_label_set_text(label, SYMBOL_DOWN);
}
/**
* Create images from variable and file
*/
void lv_tutorial_image(void)
{
/*************************
* IMAGE FROM SOURCE CODE
*************************/
lv_obj_t *img_src = lv_img_create(lv_scr_act(), NULL); /*Crate an image object*/
lv_img_set_src(img_src, &red_flower); /*Set the created file as image (a red fl ower)*/
lv_obj_set_pos(img_src, 10, 10); /*Set the positions*/
lv_obj_set_drag(img_src, true);
#if PC_FILES && USE_LV_FILESYSTEM
/**************************
* IMAGE FROM BINARY FILE
**************************/
/* Add a simple drive to open images from PC*/
lv_fs_drv_t pcfs_drv; /*A driver descriptor*/
memset(&pcfs_drv, 0, sizeof(lv_fs_drv_t)); /*Initialization*/
pcfs_drv.file_size = sizeof(pc_file_t); /*Set up fields...*/
pcfs_drv.letter = 'P';
pcfs_drv.open = pcfs_open;
pcfs_drv.close = pcfs_close;
pcfs_drv.read = pcfs_read;
pcfs_drv.seek = pcfs_seek;
pcfs_drv.tell = pcfs_tell;
lv_fs_add_drv(&pcfs_drv);
lv_obj_t *img_bin = lv_img_create(lv_scr_act(), NULL); /*Create an image object*/
/* Set the image's file according to the current color depth
* a blue flower picture*/
#if LV_COLOR_DEPTH == 8
lv_img_set_src(img_bin, "P:/lv_examples/lv_tutorial/6_images/blue_flower_8.bin");
#elif LV_COLOR_DEPTH == 16
lv_img_set_src(img_bin, "P:/lv_examples/lv_tutorial/6_images/blue_flower_16.bin");
#elif LV_COLOR_DEPTH == 24
lv_img_set_src(img_bin, "P:/lv_examples/lv_tutorial/6_images/blue_flower_24.bin");
#endif
lv_obj_align(img_bin, img_src, LV_ALIGN_OUT_RIGHT_TOP, 20, 0); /*Align next to the source image*/
lv_obj_set_drag(img_bin, true);
#endif
lv_obj_t * img_symbol = lv_img_create(lv_scr_act(), NULL);
lv_img_set_src(img_symbol, SYMBOL_OK);
lv_obj_set_drag(img_symbol, true);
lv_obj_align(img_symbol, img_src, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 20); /*Align next to the source image*/
}
/**
* Concat two font and create label with Unicode characters
* LV_TXT_UTF8 has to be enabled
*/
void lv_tutorial_fonts(void)
{
/*Add the cyrillic character set to the ASCII*/
lv_font_add(&font_ubuntu_40_cyrillic, &font_ubuntu_40_ascii);
/*Create a style and use the new font*/
static lv_style_t style1;
lv_style_copy(&style1, &lv_style_plain);
style1.text.font = &font_ubuntu_40_ascii;
/*Create a label and set new text*/
lv_obj_t *label = lv_label_create(lv_scr_act(), NULL);
lv_obj_set_pos(label, 10, 10);
lv_label_set_style(label, &style1);
lv_label_set_text(label, "Hello\nпривет"); /*Use ASCII and Cyrillic letters together*/
}
/**
* Process a new point from LV_INDEV_TYPE_POINTER input device
* @param i pointer to an input device
* @param data pointer to the data read from the input device
*/
static void indev_pointer_proc(lv_indev_t * i, lv_indev_data_t * data)
{
/*Move the cursor if set and moved*/
if(i->cursor != NULL &&
(i->proc.last_point.x != data->point.x ||
i->proc.last_point.y != data->point.y)) {
lv_obj_set_pos(i->cursor, data->point.x, data->point.y);
}
i->proc.act_point.x = data->point.x;
i->proc.act_point.y = data->point.y;
if(i->proc.state == LV_INDEV_STATE_PR) {
#if LV_INDEV_POINT_MARKER != 0
lv_area_t area;
area.x1 = i->proc.act_point.x - (LV_INDEV_POINT_MARKER >> 1);
area.y1 = i->proc.act_point.y - (LV_INDEV_POINT_MARKER >> 1);
area.x2 = i->proc.act_point.x + ((LV_INDEV_POINT_MARKER >> 1) | 0x1);
area.y2 = i->proc.act_point.y + ((LV_INDEV_POINT_MARKER >> 1) | 0x1);
lv_rfill(&area, NULL, LV_COLOR_MAKE(0xFF, 0, 0), LV_OPA_COVER);
#endif
indev_proc_press(&i->proc);
} else {
/**
* Signal function of the scrollable part of a page
* @param scrl pointer to the scrollable object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_page_scrollable_signal(lv_obj_t * scrl, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(scrl, sign, param);
if(res != LV_RES_OK) return res;
lv_obj_t * page = lv_obj_get_parent(scrl);
lv_style_t * page_style = lv_obj_get_style(page);
lv_page_ext_t * page_ext = lv_obj_get_ext_attr(page);
if(sign == LV_SIGNAL_CORD_CHG) {
/*Be sure the width of the scrollable is correct*/
if(lv_cont_get_hor_fit(scrl) == false) {
lv_obj_set_width(scrl, lv_obj_get_width(page) - 2 * page_style->body.padding.hor);
}
/*Limit the position of the scrollable object to be always visible
* (Do not let its edge inner then its parent respective edge)*/
lv_coord_t new_x;
lv_coord_t new_y;
bool refr_x = false;
bool refr_y = false;
lv_area_t page_cords;
lv_area_t scrl_cords;
lv_coord_t hpad = page_style->body.padding.hor;
lv_coord_t vpad = page_style->body.padding.ver;
new_x = lv_obj_get_x(scrl);
new_y = lv_obj_get_y(scrl);
lv_obj_get_coords(scrl, &scrl_cords);
lv_obj_get_coords(page, &page_cords);
/*scrollable width smaller then page width? -> align to left*/
if(lv_area_get_width(&scrl_cords) + 2 * hpad < lv_area_get_width(&page_cords)) {
if(scrl_cords.x1 != page_cords.x1 + hpad) {
new_x = hpad;
refr_x = true;
}
} else {
/*The edges of the scrollable can not be in the page (minus hpad) */
if(scrl_cords.x2 < page_cords.x2 - hpad) {
new_x = lv_area_get_width(&page_cords) - lv_area_get_width(&scrl_cords) - hpad; /* Right align */
refr_x = true;
}
if (scrl_cords.x1 > page_cords.x1 + hpad) {
new_x = hpad; /*Left align*/
refr_x = true;
}
}
/*scrollable height smaller then page height? -> align to left*/
if(lv_area_get_height(&scrl_cords) + 2 * vpad < lv_area_get_height(&page_cords)) {
if(scrl_cords.y1 != page_cords.y1 + vpad) {
new_y = vpad;
refr_y = true;
}
} else {
/*The edges of the scrollable can not be in the page (minus vpad) */
if(scrl_cords.y2 < page_cords.y2 - vpad) {
new_y = lv_area_get_height(&page_cords) - lv_area_get_height(&scrl_cords) - vpad; /* Bottom align */
refr_y = true;
}
if (scrl_cords.y1 > page_cords.y1 + vpad) {
new_y = vpad; /*Top align*/
refr_y = true;
}
}
if(refr_x != false || refr_y != false) {
lv_obj_set_pos(scrl, new_x, new_y);
}
lv_page_sb_refresh(page);
}
else if(sign == LV_SIGNAL_DRAG_END) {
/*Hide scrollbars if required*/
if(page_ext->sb.mode == LV_SB_MODE_DRAG) {
lv_area_t sb_area_tmp;
if(page_ext->sb.hor_draw) {
lv_area_copy(&sb_area_tmp, &page_ext->sb.hor_area);
sb_area_tmp.x1 += page->coords.x1;
sb_area_tmp.y1 += page->coords.y1;
sb_area_tmp.x2 += page->coords.x2;
sb_area_tmp.y2 += page->coords.y2;
lv_inv_area(&sb_area_tmp);
page_ext->sb.hor_draw = 0;
}
if(page_ext->sb.ver_draw) {
lv_area_copy(&sb_area_tmp, &page_ext->sb.ver_area);
sb_area_tmp.x1 += page->coords.x1;
sb_area_tmp.y1 += page->coords.y1;
sb_area_tmp.x2 += page->coords.x2;
sb_area_tmp.y2 += page->coords.y2;
lv_inv_area(&sb_area_tmp);
page_ext->sb.ver_draw = 0;
}
}
}
else if(sign == LV_SIGNAL_PRESSED) {
if(page_ext->pr_action != NULL) {
page_ext->pr_action(page);
}
}
else if(sign == LV_SIGNAL_RELEASED) {
if(lv_indev_is_dragging(lv_indev_get_act()) == false) {
if(page_ext->rel_action != NULL) {
page_ext->rel_action(page);
}
}
}
return res;
}