update asserts

examples/widgets/textarea/lv_example_textarea_1.c

@@ -0,0 +1,32 @@
+#include "../../../lvgl.h"
+#include <stdio.h>
+#if LV_USE_TEXTAREA
+
+lv_obj_t * ta1;
+lv_obj_t * ta2;
+
+static void event_handler(lv_obj_t * obj, lv_event_t event)
+{
+    if(event == LV_EVENT_VALUE_CHANGED) {
+        printf("Value: %s\n", lv_textarea_get_text(obj));
+    }
+    else if(event == LV_EVENT_LONG_PRESSED_REPEAT) {
+        /*For simple test: Long press the Text are to add the text below*/
+        const char  * txt = "\n\nYou can scroll it if the text is long enough.\n";
+        static uint16_t i = 0;
+        if(txt[i] != '\0') {
+            lv_textarea_add_char(ta1, txt[i]);
+            i++;
+        }
+    }
+}
+
+void lv_example_textarea_1(void)
+{
+    ta1 = lv_textarea_create(lv_scr_act(), NULL);
+    lv_obj_align(ta1, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
+    lv_textarea_set_text(ta1, "A text in a Text Area");    /*Set an initial text*/
+    lv_obj_add_event_cb(ta1, event_handler, NULL);
+}
+
+#endif

examples/widgets/textarea/lv_example_textarea_1.py

@@ -0,0 +1,13 @@
+def event_handler(obj, event):
+    if event == lv.EVENT.VALUE_CHANGED:
+        print("Value: %s" % obj.get_text())
+    elif event == lv.EVENT.LONG_PRESSED_REPEAT:
+        # For simple test: Long press the Text are to add the text below
+        ta1.add_text("\n\nYou can scroll it if the text is long enough.\n")
+
+ta1 = lv.ta(lv.scr_act())
+ta1.set_size(200, 100)
+ta1.align(None, lv.ALIGN.CENTER, 0, 0)
+ta1.set_cursor_type(lv.CURSOR.BLOCK)
+ta1.set_text("A text in a Text Area")     # Set an initial text
+ta1.set_event_cb(event_handler)

examples/widgets/textarea/lv_example_textarea_2.c

@@ -0,0 +1,62 @@
+//#include "../../../lvgl.h"
+//#include <stdio.h>
+//#if LV_USE_TEXTAREA && LV_USE_KEYBOARD
+//
+//static void ta_event_cb(lv_obj_t * ta, lv_event_t event);
+//
+//static lv_obj_t * kb;
+//
+//void lv_example_textarea_2(void)
+//{
+//    /* Create the password box */
+//    lv_obj_t * pwd_ta = lv_textarea_create(lv_scr_act(), NULL);
+//    lv_textarea_set_text(pwd_ta, "");
+//    lv_textarea_set_pwd_mode(pwd_ta, true);
+//    lv_textarea_set_one_line(pwd_ta, true);
+//    lv_textarea_set_cursor_hidden(pwd_ta, true);
+//    lv_obj_set_width(pwd_ta, LV_HOR_RES / 2 - 20);
+//    lv_obj_set_pos(pwd_ta, 5, 20);
+//    lv_obj_set_event_cb(pwd_ta, ta_event_cb);
+//
+//    /* Create a label and position it above the text box */
+//    lv_obj_t * pwd_label = lv_label_create(lv_scr_act(), NULL);
+//    lv_label_set_text(pwd_label, "Password:");
+//    lv_obj_align(pwd_label, pwd_ta, LV_ALIGN_OUT_TOP_LEFT, 0, 0);
+//
+//    /* Create the one-line mode text area */
+//    lv_obj_t * oneline_ta = lv_textarea_create(lv_scr_act(), pwd_ta);
+//    lv_textarea_set_pwd_mode(oneline_ta, false);
+//    lv_textarea_set_cursor_hidden(oneline_ta, true);
+//    lv_obj_align(oneline_ta, NULL, LV_ALIGN_IN_TOP_RIGHT, -5, 20);
+//
+//
+//    /* Create a label and position it above the text box */
+//    lv_obj_t * oneline_label = lv_label_create(lv_scr_act(), NULL);
+//    lv_label_set_text(oneline_label, "Text:");
+//    lv_obj_align(oneline_label, oneline_ta, LV_ALIGN_OUT_TOP_LEFT, 0, 0);
+//
+//    /* Create a keyboard */
+//    kb = lv_keyboard_create(lv_scr_act(), NULL);
+//    lv_obj_set_size(kb,  LV_HOR_RES, LV_VER_RES / 2);
+//
+//    lv_keyboard_set_textarea(kb, pwd_ta); /* Focus it on one of the text areas to start */
+//    lv_keyboard_set_cursor_manage(kb, true); /* Automatically show/hide cursors on text areas */
+//}
+//
+//static void ta_event_cb(lv_obj_t * ta, lv_event_t event)
+//{
+//    if(event == LV_EVENT_CLICKED) {
+//        /* Focus on the clicked text area */
+//        if(kb != NULL)
+//            lv_keyboard_set_textarea(kb, ta);
+//    }
+//
+//    else if(event == LV_EVENT_INSERT) {
+//        const char * str = lv_event_get_data();
+//        if(str[0] == '\n') {
+//            printf("Ready\n");
+//        }
+//    }
+//}
+//
+//#endif

examples/widgets/textarea/lv_example_textarea_2.py

@@ -0,0 +1,51 @@
+HOR_RES = lv.disp_get_hor_res(lv.disp_get_default())
+
+def kb_event_cb(event_kb, event):
+    # Just call the regular event handler
+    event_kb.def_event_cb(event)
+
+def ta_event_cb(ta, event):
+    if event == lv.EVENT.INSERT:
+        # get inserted value
+        ptr = lv.C_Pointer()
+        ptr.ptr_val = lv.event_get_data()
+        if ptr.str_val == "\n":
+            print("Ready")
+    elif event == lv.EVENT.CLICKED:
+        # Focus on the clicked text area
+        kb.set_ta(ta)
+
+# Create the password box
+pwd_ta = lv.ta(lv.scr_act())
+pwd_ta.set_text("");
+pwd_ta.set_pwd_mode(True)
+pwd_ta.set_one_line(True)
+pwd_ta.set_width(HOR_RES // 2 - 20)
+pwd_ta.set_pos(5, 20)
+pwd_ta.set_event_cb(ta_event_cb)
+
+# Create a label and position it above the text box
+pwd_label = lv.label(lv.scr_act())
+pwd_label.set_text("Password:")
+pwd_label.align(pwd_ta, lv.ALIGN.OUT_TOP_LEFT, 0, 0)
+
+# Create the one-line mode text area
+oneline_ta = lv.ta(lv.scr_act(), pwd_ta)
+oneline_ta.set_pwd_mode(False)
+oneline_ta.set_cursor_type(lv.CURSOR.LINE | lv.CURSOR.HIDDEN)
+oneline_ta.align(None, lv.ALIGN.IN_TOP_RIGHT, -5, 20)
+oneline_ta.set_event_cb(ta_event_cb)
+
+# Create a label and position it above the text box
+oneline_label = lv.label(lv.scr_act())
+oneline_label.set_text("Text:")
+oneline_label.align(oneline_ta, lv.ALIGN.OUT_TOP_LEFT, 0, 0)
+
+# Create a keyboard and make it fill the width of the above text areas
+kb = lv.kb(lv.scr_act())
+kb.set_pos(5, 90)
+kb.set_event_cb(kb_event_cb) # Setting a custom event handler stops the keyboard from closing automatically
+kb.set_size(HOR_RES - 10, 140)
+
+kb.set_ta(pwd_ta) # Focus it on one of the text areas to start
+kb.set_cursor_manage(True) # Automatically show/hide cursors on text areas

examples/widgets/textarea/lv_example_textarea_3.c

@@ -0,0 +1,44 @@
+//#include "../../../lvgl.h"
+//#include <stdio.h>
+//#if LV_USE_TEXTAREA && LV_USE_KEYBOARD
+//
+//static void ta_event_cb(lv_obj_t * ta, lv_event_t event);
+//
+//static lv_obj_t * kb;
+//
+///**
+// * Automatically format text like a clock. E.g. "12:34"
+// * Add the ':' automatically.
+// */
+//void lv_example_textarea_3(void)
+//{
+//    /* Create the text area */
+//    lv_obj_t * ta = lv_textarea_create(lv_scr_act(), NULL);
+//    lv_obj_set_event_cb(ta, ta_event_cb);
+//    lv_textarea_set_accepted_chars(ta, "0123456789:");
+//    lv_textarea_set_max_length(ta, 5);
+//    lv_textarea_set_one_line(ta, true);
+//    lv_textarea_set_text(ta, "");
+//
+//    /* Create a keyboard*/
+//    kb = lv_keyboard_create(lv_scr_act(), NULL);
+//    lv_obj_set_size(kb,  LV_HOR_RES, LV_VER_RES / 2);
+//    lv_keyboard_set_mode(kb, LV_KEYBOARD_MODE_NUM);
+//    lv_keyboard_set_textarea(kb, ta);
+//}
+//
+//static void ta_event_cb(lv_obj_t * ta, lv_event_t event)
+//{
+//    if(event == LV_EVENT_VALUE_CHANGED) {
+//        const char * txt = lv_textarea_get_text(ta);
+//        if(txt[0] >= '0' && txt[0] <= '9' &&
+//            txt[1] >= '0' && txt[1] <= '9' &&
+//            txt[2] != ':')
+//        {
+//            lv_textarea_set_cursor_pos(ta, 2);
+//            lv_textarea_add_char(ta, ':');
+//        }
+//    }
+//}
+//
+//#endif