lvgl testing

- set theme via code
- custom table content (custom draw on canvas)
- remove classes from ui - use free functions instead
- remove provisioning

include/lv_conf.h

@@ -577,7 +577,7 @@
 #if LV_USE_THEME_DEFAULT
 
     /*0: Light mode; 1: Dark mode*/
-    #define LV_THEME_DEFAULT_DARK 1
+    #define LV_THEME_DEFAULT_DARK 0
 
     /*1: Enable grow on press*/
     #define LV_THEME_DEFAULT_GROW 1

src/gfx/lv_setup.cpp

@@ -76,6 +76,8 @@ void print_cb(const char *buf)
 void lv_begin()
 {
     tft.init();
+    tft.initDMA();
+    tft.startWrite();
     tft.setRotation(1);
 
 #if LV_USE_LOG

src/main.cpp

@@ -33,7 +33,11 @@ void setup()
 
   lv_begin();
 
-  LaunchScreen().init();
+  lv_disp_t *dispp = lv_disp_get_default();
+  lv_theme_t *theme = lv_theme_default_init(dispp, lv_palette_main(LV_PALETTE_AMBER), lv_palette_main(LV_PALETTE_RED), false, LV_FONT_DEFAULT);
+  lv_disp_set_theme(dispp, theme);
+
+  launch_screen_show();
 }
 
 void loop()

src/ui/widgets/time_widget.h → src/services/esp_now_service.cpp

@@ -16,9 +16,4 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //
 //----------------------------------------------------------------------------
-#pragma once
-
-#include <lvgl.h>
-
-void time_widget_init(lv_coord_t x, lv_coord_t y);
-void time_widget_dispose();
+#include "esp_now_service.h"

src/services/wifi_service.h → src/services/esp_now_service.h

@@ -17,5 +17,3 @@
 //
 //----------------------------------------------------------------------------
 #pragma once
-
-void initWiFiTask(void *params);

src/theme.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <lvgl.h>
+
+const auto backgroundColor = lv_color_make(0x78, 0x94, 0xa7);

src/ui/screens/launch_screen.cpp

@@ -18,14 +18,28 @@
 //----------------------------------------------------------------------------
 #include "launch_screen.h"
 
+#include "theme.h"
 #include "lv_i18n/lv_i18n.h"
 #include "search_screen.h"
 
-void LaunchScreen::init()
+lv_obj_t *screen;
+
+void timer_xcb(lv_timer_t *timer)
+{
+    lv_timer_del(timer);
+    search_screen_init();
+}
+
+void start_timer()
+{
+    lv_timer_t *timer = lv_timer_create(timer_xcb, 2000, NULL);
+}
+
+void launch_screen_show()
 {
     screen = lv_obj_create(NULL);
     lv_obj_clear_flag(screen, LV_OBJ_FLAG_SCROLLABLE);
-    lv_obj_set_style_bg_color(screen, lv_color_make(0x78, 0x94, 0xa7), 0);
+    lv_obj_set_style_bg_color(screen, backgroundColor, 0);
 
     LV_IMG_DECLARE(os_railway_icon_lvgl);
     auto *logo = lv_img_create(screen);
@@ -35,25 +49,7 @@ void LaunchScreen::init()
     auto *label = lv_label_create(screen);
     lv_label_set_text(label, _("appName"));
     lv_obj_align(label, LV_ALIGN_BOTTOM_MID, 0, -25);
-    {
-        lv_disp_load_scr(screen);
-        timer();
-    }
-}
-
-void LaunchScreen::dispose()
-{
-    lv_obj_del(screen);
-    screen = nullptr;
-}
+    lv_disp_load_scr(screen);
 
-void my_timer(lv_timer_t *timer)
-{
-    lv_timer_del(timer);
-    SearchScreen().show();
+    start_timer();
 }
-
-void LaunchScreen::timer()
-{
-    lv_timer_t *timer = lv_timer_create(my_timer, 2000, NULL);
-}

src/ui/screens/launch_screen.h

@@ -20,13 +20,4 @@
 
 #include <lvgl.h>
 
-class LaunchScreen
-{
-private:
-    lv_obj_t *screen;
-    void timer();
-
-public:
-    void init();
-    void dispose();
-};
+void launch_screen_show();

src/ui/screens/search_screen.cpp

@@ -18,17 +18,88 @@
 //----------------------------------------------------------------------------
 #include "search_screen.h"
 
+#include "theme.h"
 #include "../widgets/status_bar_widget.h"
 
-SearchScreen::SearchScreen()
+#define ITEM_CNT 200
+
+lv_obj_t *search_screen;
+lv_obj_t *search_data_table;
+
+static void draw_event_cb(lv_event_t *e)
 {
-    screen = lv_obj_create(NULL);
-    lv_obj_clear_flag(screen, LV_OBJ_FLAG_SCROLLABLE);
-    lv_obj_set_style_bg_color(screen, lv_color_make(0x78, 0x94, 0xa7), 0);
+    auto *obj = lv_event_get_target(e);
+    auto *dsc = lv_event_get_draw_part_dsc(e);
+
+    if (dsc->part == LV_PART_ITEMS)
+    {
+        bool chk = lv_table_has_cell_ctrl(obj, dsc->id, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
+
+        lv_draw_rect_dsc_t rect_dsc;
+        lv_draw_rect_dsc_init(&rect_dsc);
+        rect_dsc.bg_color = chk ? lv_theme_get_color_primary(obj) : lv_palette_lighten(LV_PALETTE_GREY, 2);
+        rect_dsc.radius = LV_RADIUS_CIRCLE;
+
+        lv_area_t sw_area;
+        sw_area.x1 = dsc->draw_area->x2 - 50;
+        sw_area.x2 = sw_area.x1 + 40;
+        sw_area.y1 = dsc->draw_area->y1 + lv_area_get_height(dsc->draw_area) / 2 - 10;
+        sw_area.y2 = sw_area.y1 + 20;
+        lv_draw_rect(dsc->draw_ctx, &rect_dsc, &sw_area);
+
+        rect_dsc.bg_color = lv_color_white();
+        if (chk)
+        {
+            sw_area.x2 -= 2;
+            sw_area.x1 = sw_area.x2 - 16;
+        }
+        else
+        {
+            sw_area.x1 += 2;
+            sw_area.x2 = sw_area.x1 + 16;
+        }
+        sw_area.y1 += 2;
+        sw_area.y2 -= 2;
+        lv_draw_rect(dsc->draw_ctx, &rect_dsc, &sw_area);
+    }
 }
 
-void SearchScreen::show()
+static void change_event_cb(lv_event_t *e)
 {
-    status_bar_widget_init();
-    lv_disp_load_scr(this->screen);
+    lv_obj_t *obj = lv_event_get_target(e);
+    uint16_t col;
+    uint16_t row;
+    lv_table_get_selected_cell(obj, &row, &col);
+    bool chk = lv_table_has_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
+    if (chk)
+        lv_table_clear_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
+    else
+        lv_table_add_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
+}
+
+void search_screen_init()
+{
+    search_screen = lv_obj_create(NULL);
+    lv_obj_clear_flag(search_screen, LV_OBJ_FLAG_SCROLLABLE);
+
+    search_data_table = lv_table_create(search_screen);
+    lv_obj_set_size(search_data_table, SCREEN_WIDTH, SCREEN_HEIGHT);
+
+    lv_table_set_col_width(search_data_table, 0, SCREEN_WIDTH - 3);
+    lv_table_set_row_cnt(search_data_table, ITEM_CNT); /*Not required but avoids a lot of memory reallocation lv_table_set_set_value*/
+    lv_table_set_col_cnt(search_data_table, 1);
+
+    /*Don't make the cell pressed, we will draw something different in the event*/
+    lv_obj_remove_style(search_data_table, NULL, LV_PART_ITEMS | LV_STATE_PRESSED);
+
+    uint32_t i;
+    for (i = 0; i < ITEM_CNT; i++)
+    {
+        lv_table_set_cell_value_fmt(search_data_table, i, 0, "Item\n%" LV_PRIu32, i + 1);
+    }
+
+    lv_obj_add_event_cb(search_data_table, draw_event_cb, LV_EVENT_DRAW_PART_END, NULL);
+    lv_obj_add_event_cb(search_data_table, change_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
+
+    lv_disp_load_scr(search_screen);
 }

src/ui/screens/search_screen.h

@@ -20,12 +20,4 @@
 
 #include <lvgl.h>
 
-class SearchScreen
-{
-private:
-    lv_obj_t *screen;
-
-public:
-    SearchScreen();
-    void show();
-};
+void search_screen_init();

src/ui/widgets/status_bar_widget.cpp

@@ -20,19 +20,15 @@
 
 #include <lvgl.h>
 
-#include "time_widget.h"
-
 lv_obj_t *status_bar_widget;
 
 void status_bar_widget_init()
 {
     status_bar_widget = lv_obj_create(lv_layer_top());
-    time_widget_init(10, 10);
 }
 
 void status_bar_widget_dispose()
 {
-    time_widget_dispose();
     lv_obj_del(status_bar_widget);
     status_bar_widget = NULL;
 }