hello_world example added and encoder_ctrl begun

lv_examples/1_1_lv_hello_world/lv_hello_world.c

@@ -0,0 +1,67 @@
+/**
+ * @file lv_hello_world.c
+ *
+ */
+
+/*
+ * Greetings,
+ * this is the first example in the tutorial hence this is the most simple one.
+ * It only creates a Label, set its text, and align to the middle.
+ *
+ * Be sure in lv_conf.h LV_APP_ENEBLE is 0 (just for simplicity)
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_hello_world.h"
+#if USE_LV_EXAMPLE != 0
+
+#include "lvgl/lvgl.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+/**
+ * Create a simple 'Hello world!' label
+ */
+void lv_hello_world_init(void)
+{
+    /*Create a Label on the current screen*/
+    lv_obj_t * label1 =  lv_label_create(lv_scr_act(), NULL);
+
+    /*Modify the Label's text*/
+    lv_label_set_text(label1, "Hello world!");
+
+    /* Align the Label to the center
+     * NULL means align on parent (which is the screen now)
+     * 0, 0 at the and means an x, y offset after alignment*/
+    lv_obj_align_us(label1, NULL, LV_ALIGN_CENTER, 0, 0);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+#endif /*USE_LV_EXAMPLE != 0*/

lv_examples/1_1_lv_hello_world/lv_hello_world.h

@@ -0,0 +1,42 @@
+/**
+ * @file lv_hello_world.h
+ *
+ */
+
+#ifndef LV_HELLO_WORLD_H
+#define LV_HELLO_WORLD_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_conf.h"
+#if USE_LV_EXAMPLE != 0
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+void lv_hello_world_init(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /*USE_LV_EXAMPLE != 0*/
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*LV_HELLO_WORLD_H*/

lv_examples/2_2_encoder_ctrl/encoder_ctrl.c

@@ -0,0 +1,197 @@
+/**
+ * @file encoder_ctrl.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "encoder_ctrl.h"
+#if USE_LV_EXAMPLE != 0
+
+#include "lvgl/lvgl.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+static lv_action_res_t btn_next(lv_obj_t * btn, lv_dispi_t * dispi);
+static lv_action_res_t btn_inc(lv_obj_t * btn, lv_dispi_t * dispi);
+static lv_action_res_t btn_dec(lv_obj_t * btn, lv_dispi_t * dispi);
+static lv_action_res_t btn_sel(lv_obj_t * btn, lv_dispi_t * dispi);
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+lv_group_t * g1;    /*Declare an Object Group*/
+lv_group_t * g2;    /*Declare an Object Group*/
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+/**
+ */
+void encoder_ctrl_init(void)
+{
+    /* Create a Container screen and use Pretty layout
+     * to make the content responsive.
+     * See the 'responsive' example for more information */
+    lv_obj_t * scr = lv_page_create(NULL, NULL);
+    lv_cont_set_layout(lv_page_get_scrl(scr), LV_CONT_LAYOUT_PRETTY);
+    lv_scr_load(scr);
+
+    g1 = lv_group_create();
+    g2 = lv_group_create();
+
+    lv_obj_t * title = lv_label_create(scr, NULL);
+    lv_label_set_text(title, "Channel 1");
+    lv_obj_set_protect(title, LV_PROTECT_FOLLOW);   /*Make a line break in the layout*/
+
+
+    /*Create a holder, a subtitle and a drop down list*/
+    lv_obj_t * holder = lv_cont_create(scr, NULL);     /*Create a transparent holder to group some objects*/
+    lv_cont_set_fit(holder, true, true);
+    lv_cont_set_layout(holder, LV_CONT_LAYOUT_COL_L);
+    lv_obj_set_style(holder, lv_style_get(LV_STYLE_TRANSP_TIGHT, NULL));
+
+    lv_obj_t * subtitle = lv_label_create(holder, NULL);
+    lv_label_set_text(subtitle, "Temperature");
+
+    lv_obj_t * ddlist = lv_ddlist_create(holder, NULL);
+    lv_ddlist_set_options_str(ddlist, "Low\nMedium\nHigh");
+    lv_group_add_obj(g1, ddlist);   /*Add the object to the first group*/
+
+    lv_ddlist_create(holder, ddlist);
+
+    /*Copy the previous holder and subtitle and add check boxes*/
+    holder = lv_cont_create(scr, holder);
+    subtitle = lv_label_create(holder, subtitle);
+    lv_label_set_text(subtitle, "Colors");
+    lv_obj_t * cb = lv_cb_create(holder, NULL);
+    lv_cb_set_text(cb, "Red");
+    lv_group_add_obj(g1, cb);
+
+    cb = lv_cb_create(holder, cb);
+    lv_cb_set_text(cb, "Green");
+
+    cb = lv_cb_create(holder, cb);
+    lv_cb_set_text(cb, "Blue");
+
+    /*Copy the previous holder and subtitle and add sliders*/
+    holder = lv_cont_create(scr, holder);
+    subtitle = lv_label_create(holder, subtitle);
+    lv_label_set_text(subtitle, "Voltage");
+    lv_obj_t * slider = lv_slider_create(holder, NULL);
+    lv_obj_set_size_us(slider, 180, 30);
+
+    subtitle = lv_label_create(holder, subtitle);
+    lv_label_set_text(subtitle, "Current");
+    slider = lv_slider_create(holder, slider);
+
+    lv_obj_t * list = lv_list_create(lv_scr_act(), NULL);
+    lv_list_add(list, "", "List1", NULL);
+    lv_list_add(list, "", "List2", NULL);
+    lv_list_add(list, "", "List3", NULL);
+    lv_list_add(list, "", "List4", NULL);
+    lv_list_add(list, "", "List5", NULL);
+    lv_list_add(list, "", "List6", NULL);
+    lv_list_add(list, "", "List7", NULL);
+    lv_list_add(list, "", "List8", NULL);
+    lv_group_add_obj(g1, list);
+
+    lv_obj_t * btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_obj_t * l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Button1");
+    lv_group_add_obj(g1, btn);
+
+
+    btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_btn_set_tgl(btn, true);
+    l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Button\nToggle");
+    lv_group_add_obj(g1, btn);
+
+    btn = lv_btn_create(lv_scr_act(), btn);
+    lv_btn_set_tgl(btn, true);
+    l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Button\nToggle\nCopy");
+
+
+    l = lv_label_create(lv_scr_act(), NULL);
+    lv_label_set_text(l, "Single\nlabel");
+    lv_obj_set_protect(l, LV_PROTECT_FOLLOW);
+    lv_group_add_obj(g1, l);
+
+    btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_btn_set_rel_action(btn, btn_next);
+    l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Next");
+
+    btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_btn_set_rel_action(btn, btn_dec);
+    l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Dec");
+
+    btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_btn_set_rel_action(btn, btn_inc);
+    l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Inc");
+
+    btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_btn_set_rel_action(btn, btn_sel);
+    l = lv_label_create(btn, NULL);
+    lv_label_set_text(l, "Sel");
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static lv_action_res_t btn_next(lv_obj_t * btn, lv_dispi_t * dispi)
+{
+    lv_group_focus_next(g1);
+
+    return LV_ACTION_RES_OK;
+}
+
+static lv_action_res_t btn_prev(lv_obj_t * btn, lv_dispi_t * dispi)
+{
+    lv_group_focus_prev(g1);
+
+    return LV_ACTION_RES_OK;
+}
+
+
+static lv_action_res_t btn_inc(lv_obj_t * btn, lv_dispi_t * dispi)
+{
+    lv_group_send(g1, LV_GROUP_KEY_RIGHT);
+    return LV_ACTION_RES_OK;
+}
+
+static lv_action_res_t btn_dec(lv_obj_t * btn, lv_dispi_t * dispi)
+{
+    lv_group_send(g1, LV_GROUP_KEY_LEFT);
+
+    return LV_ACTION_RES_OK;
+}
+
+static lv_action_res_t btn_sel(lv_obj_t * btn, lv_dispi_t * dispi)
+{
+    lv_group_send(g1, LV_GROUP_KEY_ENTER);
+
+    return LV_ACTION_RES_OK;
+}
+
+#endif /*USE_LV_EXAMPLE != 0*/

lv_examples/2_2_encoder_ctrl/encoder_ctrl.h

@@ -0,0 +1,42 @@
+/**
+ * @file encoder_ctrl.h
+ *
+ */
+
+#ifndef ENCODER_CTRL_H
+#define ENCODER_CTRL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_conf.h"
+#if USE_LV_EXAMPLE != 0
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+void encoder_ctrl_init(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /*USE_LV_EXAMPLE != 0*/
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*ENCODER_CTRL_H*/