From 3088849b63c0450df9b11b7c7df542713dc42854 Mon Sep 17 00:00:00 2001
From: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
Date: Mon, 17 Jun 2019 16:05:30 +0200
Subject: [PATCH] minor API changes

---
 src/lv_objx/lv_bar.c      | 29 ++++++++++++++++++++
 src/lv_objx/lv_bar.h      | 14 ++++++++++
 src/lv_objx/lv_btnm.c     | 58 +++++++++++++++++++++++++++------------
 src/lv_objx/lv_btnm.h     | 30 ++++++++++++--------
 src/lv_objx/lv_calendar.c |  9 ++++--
 src/lv_objx/lv_canvas.c   | 52 +++++++++++++++++++++++++++++++++++
 src/lv_objx/lv_canvas.h   | 43 ++++++++++++++++-------------
 src/lv_objx/lv_cb.h       | 10 +++++++
 src/lv_objx/lv_chart.h    | 19 ++++++++++---
 src/lv_objx/lv_ddlist.c   | 21 +++++++++-----
 src/lv_objx/lv_ddlist.h   |  8 +++---
 src/lv_objx/lv_gauge.c    |  8 +++---
 src/lv_objx/lv_mbox.c     |  2 +-
 src/lv_objx/lv_roller.h   | 10 +++----
 src/lv_objx/lv_slider.h   | 10 +++++++
 src/lv_objx/lv_tabview.c  | 10 +++----
 16 files changed, 253 insertions(+), 80 deletions(-)

diff --git a/src/lv_objx/lv_bar.c b/src/lv_objx/lv_bar.c
index 853a6383d..165343ffc 100644
--- a/src/lv_objx/lv_bar.c
+++ b/src/lv_objx/lv_bar.c
@@ -213,6 +213,20 @@ void lv_bar_set_sym(lv_obj_t * bar, bool en)
     ext->sym           = en ? 1 : 0;
 }
 
+/**
+ * Set the animation time of the bar
+ * @param bar pointer to a bar object
+ * @param anim_time the animation time in milliseconds.
+ */
+void lv_bar_set_anim_time(lv_obj_t * bar, uint16_t anim_time)
+{
+#if LV_USE_ANIMATION == 0
+    anim_time = 0;
+#endif
+    lv_bar_ext_t * ext = lv_obj_get_ext_attr(bar);
+    ext->anim_time = anim_time;
+}
+
 /**
  * Set a style of a bar
  * @param bar pointer to a bar object
@@ -285,6 +299,21 @@ bool lv_bar_get_sym(lv_obj_t * bar)
     return ext->sym ? true : false;
 }
 
+/**
+ * Get the animation time of the bar
+ * @param bar pointer to a bar object
+ * @return the animation time in milliseconds.
+ */
+uint16_t lv_bar_get_anim_time(lv_obj_t * bar, uint16_t anim_time)
+{
+#if LV_USE_ANIMATION
+    lv_bar_ext_t * ext = lv_obj_get_ext_attr(bar);
+    return ext->anim_time;
+#else
+    return 0;
+#endif
+}
+
 /**
  * Get a style of a bar
  * @param bar pointer to a bar object
diff --git a/src/lv_objx/lv_bar.h b/src/lv_objx/lv_bar.h
index a90525f13..e081f2c04 100644
--- a/src/lv_objx/lv_bar.h
+++ b/src/lv_objx/lv_bar.h
@@ -103,6 +103,13 @@ void lv_bar_set_range(lv_obj_t * bar, int16_t min, int16_t max);
  */
 void lv_bar_set_sym(lv_obj_t * bar, bool en);
 
+/**
+ * Set the animation time of the bar
+ * @param bar pointer to a bar object
+ * @param anim_time the animation time in milliseconds.
+ */
+void lv_bar_set_anim_time(lv_obj_t * bar, uint16_t anim_time);
+
 /**
  * Set a style of a bar
  * @param bar pointer to a bar object
@@ -143,6 +150,13 @@ int16_t lv_bar_get_max_value(const lv_obj_t * bar);
  */
 bool lv_bar_get_sym(lv_obj_t * bar);
 
+/**
+ * Get the animation time of the bar
+ * @param bar pointer to a bar object
+ * @return the animation time in milliseconds.
+ */
+uint16_t lv_bar_get_anim_time(lv_obj_t * bar, uint16_t anim_time);
+
 /**
  * Get a style of a bar
  * @param bar pointer to a bar object
diff --git a/src/lv_objx/lv_btnm.c b/src/lv_objx/lv_btnm.c
index b9ca57fbd..adfb041b3 100644
--- a/src/lv_objx/lv_btnm.c
+++ b/src/lv_objx/lv_btnm.c
@@ -260,12 +260,8 @@ void lv_btnm_set_map(const lv_obj_t * btnm, const char * map[])
  *                 length of the array and position of the elements must match
  *                 the number and order of the individual buttons (i.e. excludes
  *                 newline entries).
- *                 The control bits are:
- *                 - bit 5   : 1 = inactive (disabled)
- *                 - bit 4   : 1 = no repeat (on long press)
- *                 - bit 3   : 1 = hidden
- *                 - bit 2..0: Relative width compared to the buttons in the
- *                             same row. [1..7]
+ *                 An element of the map should look like e.g.:
+ *                 `ctrl_map[0] = width | LV_BTNM_CTRL_NO_REPEAT |  LV_BTNM_CTRL_TGL_ENABLE`
  */
 void lv_btnm_set_ctrl_map(const lv_obj_t * btnm, const lv_btnm_ctrl_t ctrl_map[])
 {
@@ -345,19 +341,29 @@ void lv_btnm_set_recolor(const lv_obj_t * btnm, bool en)
  * Set the attributes of a button of the button matrix
  * @param btnm pointer to button matrix object
  * @param btn_id 0 based index of the button to modify. (Not counting new lines)
- * @param en true: set the attributes; false: clear the attributes
  */
-void lv_btnm_set_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t ctrl, bool en)
+void lv_btnm_set_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t ctrl)
 {
     lv_btnm_ext_t * ext = lv_obj_get_ext_attr(btnm);
 
     if(btn_id >= ext->btn_cnt) return;
-    if(en) {
-        ext->ctrl_bits[btn_id] |= ctrl;
-    } else {
-        ext->ctrl_bits[btn_id] &= (~ctrl);
-    }
 
+    ext->ctrl_bits[btn_id] |= ctrl;
+    invalidate_button_area(btnm, btn_id);
+}
+
+/**
+ * Clear the attributes of a button of the button matrix
+ * @param btnm pointer to button matrix object
+ * @param btn_id 0 based index of the button to modify. (Not counting new lines)
+ */
+void lv_btnm_clear_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t ctrl)
+{
+    lv_btnm_ext_t * ext = lv_obj_get_ext_attr(btnm);
+
+    if(btn_id >= ext->btn_cnt) return;
+
+    ext->ctrl_bits[btn_id] &= (~ctrl);
     invalidate_button_area(btnm, btn_id);
 }
 
@@ -365,16 +371,32 @@ void lv_btnm_set_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t
  * Set the attributes of all buttons of a button matrix
  * @param btnm pointer to a button matrix object
  * @param ctrl attribute(s) to set from `lv_btnm_ctrl_t`. Values can be ORed.
- * @param en true: set the attributes; false: clear the attributes
  */
-void lv_btnm_set_btn_ctrl_all(lv_obj_t * btnm, lv_btnm_ctrl_t ctrl, bool en)
+void lv_btnm_set_btn_ctrl_all(lv_obj_t * btnm, lv_btnm_ctrl_t ctrl)
 {
     lv_btnm_ext_t * ext = lv_obj_get_ext_attr(btnm);
     uint16_t i;
     for(i = 0; i < ext->btn_cnt; i++) {
-        lv_btnm_set_btn_ctrl(btnm, i, ctrl, en);
+        lv_btnm_set_btn_ctrl(btnm, i, ctrl);
     }
 }
+
+
+/**
+ * Clear the attributes of all buttons of a button matrix
+ * @param btnm pointer to a button matrix object
+ * @param ctrl attribute(s) to set from `lv_btnm_ctrl_t`. Values can be ORed.
+ * @param en true: set the attributes; false: clear the attributes
+ */
+void lv_btnm_clear_btn_ctrl_all(lv_obj_t * btnm, lv_btnm_ctrl_t ctrl)
+{
+    lv_btnm_ext_t * ext = lv_obj_get_ext_attr(btnm);
+    uint16_t i;
+    for(i = 0; i < ext->btn_cnt; i++) {
+        lv_btnm_clear_btn_ctrl(btnm, i, ctrl);
+    }
+}
+
 /**
  * Set a single buttons relative width.
  * This method will cause the matrix be regenerated and is a relatively
@@ -1048,9 +1070,9 @@ static void make_one_button_toggled(lv_obj_t * btnm, uint16_t btn_idx)
     /*Save whether the button was toggled*/
     bool was_toggled = lv_btnm_get_btn_ctrl(btnm, btn_idx, LV_BTNM_CTRL_TGL_STATE);
 
-    lv_btnm_set_btn_ctrl_all(btnm, LV_BTNM_CTRL_TGL_STATE, false);
+    lv_btnm_clear_btn_ctrl_all(btnm, LV_BTNM_CTRL_TGL_STATE);
 
-    if(was_toggled) lv_btnm_set_btn_ctrl(btnm, btn_idx, LV_BTNM_CTRL_TGL_STATE, true);
+    if(was_toggled) lv_btnm_set_btn_ctrl(btnm, btn_idx, LV_BTNM_CTRL_TGL_STATE);
 }
 
 #endif
diff --git a/src/lv_objx/lv_btnm.h b/src/lv_objx/lv_btnm.h
index fb02a23f0..bcbc494ea 100644
--- a/src/lv_objx/lv_btnm.h
+++ b/src/lv_objx/lv_btnm.h
@@ -107,12 +107,8 @@ void lv_btnm_set_map(const lv_obj_t * btnm, const char * map[]);
  *                 length of the array and position of the elements must match
  *                 the number and order of the individual buttons (i.e. excludes
  *                 newline entries).
- *                 The control bits are:
- *                 - bit 5   : 1 = inactive (disabled)
- *                 - bit 4   : 1 = no repeat (on long press)
- *                 - bit 3   : 1 = hidden
- *                 - bit 2..0: Relative width compared to the buttons in the
- *                             same row. [1..7]
+ *                 An element of the map should look like e.g.:
+ *                 `ctrl_map[0] = width | LV_BTNM_CTRL_NO_REPEAT |  LV_BTNM_CTRL_TGL_ENABLE`
  */
 void lv_btnm_set_ctrl_map(const lv_obj_t * btnm, const lv_btnm_ctrl_t ctrl_map[]);
 
@@ -140,21 +136,33 @@ void lv_btnm_set_style(lv_obj_t * btnm, lv_btnm_style_t type, const lv_style_t *
 void lv_btnm_set_recolor(const lv_obj_t * btnm, bool en);
 
 /**
- * Set/clear an attribute of a button of the button matrix
+ * Set the attributes of a button of the button matrix
  * @param btnm pointer to button matrix object
  * @param btn_id 0 based index of the button to modify. (Not counting new lines)
- * @param ctrl attribute(s) to change from `lv_btnm_ctrl_t`. Values can be ORed.
- * @param en true: set the attributes; false: clear the attributes
  */
-void lv_btnm_set_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t ctrl, bool en);
+void lv_btnm_set_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t ctrl);
+
+/**
+ * Clear the attributes of a button of the button matrix
+ * @param btnm pointer to button matrix object
+ * @param btn_id 0 based index of the button to modify. (Not counting new lines)
+ */
+void lv_btnm_clear_btn_ctrl(const lv_obj_t * btnm, uint16_t btn_id, lv_btnm_ctrl_t ctrl);
 
 /**
  * Set the attributes of all buttons of a button matrix
  * @param btnm pointer to a button matrix object
  * @param ctrl attribute(s) to set from `lv_btnm_ctrl_t`. Values can be ORed.
+ */
+void lv_btnm_set_btn_ctrl_all(lv_obj_t * btnm, lv_btnm_ctrl_t ctrl);
+
+/**
+ * Clear the attributes of all buttons of a button matrix
+ * @param btnm pointer to a button matrix object
+ * @param ctrl attribute(s) to set from `lv_btnm_ctrl_t`. Values can be ORed.
  * @param en true: set the attributes; false: clear the attributes
  */
-void lv_btnm_set_btn_ctrl_all(lv_obj_t * btnm, lv_btnm_ctrl_t ctrl, bool en);
+void lv_btnm_clear_btn_ctrl_all(lv_obj_t * btnm, lv_btnm_ctrl_t ctrl);
 
 /**
  * Set a single buttons relative width.
diff --git a/src/lv_objx/lv_calendar.c b/src/lv_objx/lv_calendar.c
index ed889260f..d5ceac9f8 100644
--- a/src/lv_objx/lv_calendar.c
+++ b/src/lv_objx/lv_calendar.c
@@ -466,6 +466,7 @@ static lv_res_t lv_calendar_signal(lv_obj_t * calendar, lv_signal_t sign, void *
         lv_point_t p;
         lv_indev_get_point(indev, &p);
 
+        /*If the header is pressed mark an arrow as pressed*/
         if(lv_area_is_point_on(&header_area, &p)) {
             if(p.x < header_area.x1 + lv_area_get_width(&header_area) / 2) {
                 if(ext->btn_pressing != -1) lv_obj_invalidate(calendar);
@@ -478,10 +479,14 @@ static lv_res_t lv_calendar_signal(lv_obj_t * calendar, lv_signal_t sign, void *
             ext->pressed_date.year  = 0;
             ext->pressed_date.month = 0;
             ext->pressed_date.day   = 0;
-        } else if(calculate_touched_day(calendar, &p)) {
+        }
+        /*If a day is pressed save it*/
+        else if(calculate_touched_day(calendar, &p)) {
             if(ext->btn_pressing != 0) lv_obj_invalidate(calendar);
             ext->btn_pressing = 0;
-        } else {
+        }
+        /*ELse set a deafault state*/
+        else {
             if(ext->btn_pressing != 0) lv_obj_invalidate(calendar);
             ext->btn_pressing       = 0;
             ext->pressed_date.year  = 0;
diff --git a/src/lv_objx/lv_canvas.c b/src/lv_objx/lv_canvas.c
index e22198166..cba7bf9de 100644
--- a/src/lv_objx/lv_canvas.c
+++ b/src/lv_objx/lv_canvas.c
@@ -549,6 +549,58 @@ void lv_canvas_draw_text(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord
     lv_refr_set_disp_refreshing(refr_ori);
 }
 
+/**
+ * Draw an image on the canvas
+ * @param canvas pointer to a canvas object
+ * @param src image source. Can be a pointer an `lv_img_dsc_t` variable or a path an image.
+ * @param style style of the image (`image` properties are used)
+ */
+void lv_canvas_draw_img(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, const void * src, const lv_style_t * style)
+{
+    lv_img_dsc_t * dsc = lv_canvas_get_img(canvas);
+
+    /* Create a dummy display to fool the lv_draw function.
+     * It will think it draws to real screen. */
+    lv_area_t mask;
+    mask.x1 = 0;
+    mask.x2 = dsc->header.w - 1;
+    mask.y1 = 0;
+    mask.y2 = dsc->header.h - 1;
+
+    lv_img_header_t header;
+    lv_res_t res = lv_img_decoder_get_info(src, &header);
+    if(res != LV_RES_OK) {
+        LV_LOG_WARN("lv_canvas_draw_img: Couldn't get the image data.");
+        return;
+    }
+
+    lv_area_t coords;
+    coords.x1 = x;
+    coords.y1 = y;
+    coords.x2 = x + header.w - 1;
+    coords.y2 = y + header.h - 1;
+
+    lv_disp_t disp;
+    memset(&disp, 0, sizeof(lv_disp_t));
+
+    lv_disp_buf_t disp_buf;
+    lv_disp_buf_init(&disp_buf, (void *)dsc->data, NULL, dsc->header.w * dsc->header.h);
+    lv_area_copy(&disp_buf.area, &mask);
+
+    lv_disp_drv_init(&disp.driver);
+
+    disp.driver.buffer  = &disp_buf;
+    disp.driver.hor_res = dsc->header.w;
+    disp.driver.ver_res = dsc->header.h;
+
+    lv_disp_t * refr_ori = lv_refr_get_disp_refreshing();
+    lv_refr_set_disp_refreshing(&disp);
+
+    lv_draw_img(&coords, &mask, src, style, LV_OPA_COVER);
+
+}
+
+
 /**
  * Draw a line on the canvas
  * @param canvas pointer to a canvas object
diff --git a/src/lv_objx/lv_canvas.h b/src/lv_objx/lv_canvas.h
index 29925887e..a14a3870d 100644
--- a/src/lv_objx/lv_canvas.h
+++ b/src/lv_objx/lv_canvas.h
@@ -71,8 +71,7 @@ lv_obj_t * lv_canvas_create(lv_obj_t * par, const lv_obj_t * copy);
  * @param canvas pointer to a canvas object
  * @param w width of the canvas
  * @param h height of the canvas
- * @param cf color format. The following formats are supported:
- *      LV_IMG_CF_TRUE_COLOR, LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED, LV_IMG_CF_INDEXES_1/2/4/8BIT
+ * @param cf color format. `LV_IMG_CF_...`
  */
 void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf);
 
@@ -142,13 +141,13 @@ const lv_style_t * lv_canvas_get_style(const lv_obj_t * canvas, lv_canvas_style_
  * @param canvas pointer to a canvas object
  * @param to_copy buffer to copy. The color format has to match with the canvas's buffer color
  * format
- * @param w width of the buffer to copy
- * @param h height of the buffer to copy
  * @param x left side of the destination position
  * @param y top side of the destination position
+ * @param w width of the buffer to copy
+ * @param h height of the buffer to copy
  */
-void lv_canvas_copy_buf(lv_obj_t * canvas, const void * to_copy, lv_coord_t w, lv_coord_t h, lv_coord_t x,
-                        lv_coord_t y);
+void lv_canvas_copy_buf(lv_obj_t * canvas, const void * to_copy, lv_coord_t x,
+                        lv_coord_t y, lv_coord_t w, lv_coord_t h);
 
 /**
  * Rotate and image and store the result on a canvas.
@@ -198,6 +197,15 @@ void lv_canvas_draw_rect(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord
 void lv_canvas_draw_text(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t max_w, const lv_style_t * style,
                          const char * txt, lv_label_align_t align);
 
+
+/**
+ * Draw an image on the canvas
+ * @param canvas pointer to a canvas object
+ * @param src image source. Can be a pointer an `lv_img_dsc_t` variable or a path an image.
+ * @param style style of the image (`image` properties are used)
+ */
+void lv_canvas_draw_img(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, const void * src, const lv_style_t * style);
+
 /**
  * Draw a line on the canvas
  * @param canvas pointer to a canvas object
@@ -236,20 +244,17 @@ void lv_canvas_draw_arc(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_
 #define LV_CANVAS_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w, h) ((LV_COLOR_SIZE / 8) * w * h)
 #define LV_CANVAS_BUF_SIZE_TRUE_COLOR_ALPHA(w, h) (LV_IMG_PX_SIZE_ALPHA_BYTE * w * h)
 
-#define LV_CANVAS_BUF_SIZE_ALPHA_1BIT(w, h)                                                                            \
-    ((((w / 8) + 1) * h)) /*(w / 8) + 1): to be sure no fractional row;  LV_COLOR_SIZE / 8) * 2: palette*/
-#define LV_CANVAS_BUF_SIZE_INDEXED_1BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_1BIT(w, h) + 4 * 2) /*4 * 2: palette*/
+/*+ 1: to be sure no fractional row*/
+#define LV_CANVAS_BUF_SIZE_ALPHA_1BIT(w, h)  ((((w / 8) + 1) * h))
+#define LV_CANVAS_BUF_SIZE_ALPHA_2BIT(w, h)  ((((w / 4) + 1) * h))
+#define LV_CANVAS_BUF_SIZE_ALPHA_4BIT(w, h)  ((((w / 2) + 1) * h))
+#define LV_CANVAS_BUF_SIZE_ALPHA_8BIT(w, h)  ((w * h))
 
-#define LV_CANVAS_BUF_SIZE_ALPHA_2BIT(w, h)                                                                            \
-    ((((w / 4) + 1) * h)) /*(w / 8) + 1): to be sure no fractional row;  LV_COLOR_SIZE / 8) * 2: palette*/
-#define LV_CANVAS_BUF_SIZE_INDEXED_2BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_2BIT(w, h) + 4 * 4) /*4 * 4: palette*/
-
-#define LV_CANVAS_BUF_SIZE_ALPHA_4BIT(w, h)                                                                            \
-    ((((w / 2) + 1) * h)) /*(w / 8) + 1): to be sure no fractional row;  LV_COLOR_SIZE / 8) * 2: palette*/
-#define LV_CANVAS_BUF_SIZE_INDEXED_4BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_4BIT(w, h) + 4 * 16) /*4 * 16: palette*/
-
-#define LV_CANVAS_BUF_SIZE_ALPHA_8BIT(w, h) ((w * h))
-#define LV_CANVAS_BUF_SIZE_INDEXED_8BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_8BIT(w, h) + 4 * 256) /*4 * 256: palette*/
+/*4 * X: for palette*/
+#define LV_CANVAS_BUF_SIZE_INDEXED_1BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_1BIT(w, h) + 4 * 2)
+#define LV_CANVAS_BUF_SIZE_INDEXED_2BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_2BIT(w, h) + 4 * 4)
+#define LV_CANVAS_BUF_SIZE_INDEXED_4BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_4BIT(w, h) + 4 * 16)
+#define LV_CANVAS_BUF_SIZE_INDEXED_8BIT(w, h) (LV_CANVAS_BUF_SIZE_ALPHA_8BIT(w, h) + 4 * 256)
 
 #endif /*LV_USE_CANVAS*/
 
diff --git a/src/lv_objx/lv_cb.h b/src/lv_objx/lv_cb.h
index 35abbb349..f061cbd1a 100644
--- a/src/lv_objx/lv_cb.h
+++ b/src/lv_objx/lv_cb.h
@@ -141,6 +141,16 @@ static inline bool lv_cb_is_checked(const lv_obj_t * cb)
     return lv_btn_get_state(cb) == LV_BTN_STATE_REL ? false : true;
 }
 
+/**
+ * Get whether the check box is inactive or not.
+ * @param cb pointer to a check box object
+ * @return true: inactive; false: not inactive
+ */
+static inline bool lv_cb_is_inactive(const lv_obj_t * cb)
+{
+    return lv_btn_get_state(cb) == LV_BTN_STATE_INA ? false : true;
+}
+
 /**
  * Get a style of a button
  * @param cb pointer to check box object
diff --git a/src/lv_objx/lv_chart.h b/src/lv_objx/lv_chart.h
index 0ef9e645b..f4189edd3 100644
--- a/src/lv_objx/lv_chart.h
+++ b/src/lv_objx/lv_chart.h
@@ -35,6 +35,7 @@ extern "C" {
 
 /*Chart types*/
 enum {
+    LV_CHART_TYPE_NONE           = 0x00, /*Don't draw the series*/
     LV_CHART_TYPE_LINE          = 0x01, /*Connect the points with lines*/
     LV_CHART_TYPE_COLUMN        = 0x02, /*Draw columns*/
     LV_CHART_TYPE_POINT         = 0x04, /*Draw circles on the points*/
@@ -43,10 +44,10 @@ enum {
 };
 typedef uint8_t lv_chart_type_t;
 
-/*Chart update mode*/
+/*Chart update mode for `lv_chart_set_next`*/
 enum {
-    LV_CHART_UPDATE_MODE_SHIFT,
-    LV_CHART_UPDATE_MODE_CIRCULAR,
+    LV_CHART_UPDATE_MODE_SHIFT,     /*Shift old data to the left and add the new one o the right*/
+    LV_CHART_UPDATE_MODE_CIRCULAR,  /*Add the new data in a circular way*/
 };
 typedef uint8_t lv_chart_update_mode_t;
 
@@ -240,7 +241,7 @@ static inline void lv_chart_set_style(lv_obj_t * chart, lv_chart_style_t type, c
 void lv_chart_set_margin(lv_obj_t * chart, uint16_t margin);
 
 /**
- * Set the x/y-axis ticks of a chart
+ * Set the y-axis ticks of a chart
  * @param chart 			pointer to a chart object
  * @param list_of_values 	list of string values, terminated with \n, except the last
  * @param num_tick_marks 	if list_of_values is NULL: total number of ticks per axis
@@ -252,6 +253,16 @@ void lv_chart_set_margin(lv_obj_t * chart, uint16_t margin);
 void lv_chart_set_x_ticks(lv_obj_t * chart, const char * list_of_values, uint8_t num_tick_marks, uint8_t major_tick_len,
                           uint8_t minor_tick_len, lv_chart_axis_options_t options);
 
+/**
+ * Set the y-axis ticks of a chart
+ * @param chart             pointer to a chart object
+ * @param list_of_values    list of string values, terminated with \n, except the last
+ * @param num_tick_marks    if list_of_values is NULL: total number of ticks per axis
+ *                          else step in ticks between two value labels
+ * @param major_tick_len    the length of the major tick, AUTO if 0
+ * @param minor_tick_len    the length of the minor tick, AUTO if 0
+ * @param options           extra options
+ */
 void lv_chart_set_y_ticks(lv_obj_t * chart, const char * list_of_values, uint8_t num_tick_marks, uint8_t major_tick_len,
                           uint8_t minor_tick_len, lv_chart_axis_options_t options);
 
diff --git a/src/lv_objx/lv_ddlist.c b/src/lv_objx/lv_ddlist.c
index 54d538782..93e4c4f75 100644
--- a/src/lv_objx/lv_ddlist.c
+++ b/src/lv_objx/lv_ddlist.c
@@ -210,11 +210,12 @@ void lv_ddlist_set_selected(lv_obj_t * ddlist, uint16_t sel_opt)
         lv_obj_invalidate(ddlist);
     }
 
-    lv_event_send(ddlist, LV_EVENT_VALUE_CHANGED, &ext->sel_opt_id);
+    uint32_t id = ext->sel_opt_id;  /*Just to use uint32_t in event data*/
+    lv_event_send(ddlist, LV_EVENT_VALUE_CHANGED, &id);
 }
 
 /**
- * Set the fix height for the drop down list
+ * Set a fix height for the drop down list
  * If 0 then the opened ddlist will be auto. sized else the set height will be applied.
  * @param ddlist pointer to a drop down list
  * @param h the height when the list is opened (0: auto size)
@@ -230,13 +231,18 @@ void lv_ddlist_set_fix_height(lv_obj_t * ddlist, lv_coord_t h)
 }
 
 /**
- * Enable or disable the horizontal fit to the content
+ * Set a fix width for the drop down list
  * @param ddlist pointer to a drop down list
- * @param fit fit mode from `lv_fit_t` (Typically `LV_FIT_NONE` or `LV_FIT_TIGHT`)
+ * @param w the width when the list is opened (0: auto size)
  */
-void lv_ddlist_set_hor_fit(lv_obj_t * ddlist, lv_fit_t fit)
+void lv_ddlist_set_fix_width(lv_obj_t * ddlist, lv_coord_t w)
 {
-    lv_cont_set_fit2(ddlist, fit, lv_cont_get_fit_bottom(ddlist));
+    if(w == 0) {
+        lv_cont_set_fit2(ddlist, LV_FIT_TIGHT, lv_cont_get_fit_bottom(ddlist));
+    } else {
+        lv_cont_set_fit2(ddlist, LV_FIT_NONE, lv_cont_get_fit_bottom(ddlist));
+        lv_obj_set_width(ddlist, w);
+    }
 
     lv_ddlist_refr_size(ddlist, false);
 }
@@ -811,7 +817,8 @@ static lv_res_t release_handler(lv_obj_t * ddlist)
             ext->sel_opt_id_ori = ext->sel_opt_id;
         }
 
-        lv_res_t res = lv_event_send(ddlist, LV_EVENT_VALUE_CHANGED, &ext->sel_opt_id);
+        uint32_t id = ext->sel_opt_id;  /*Just to use uint32_t in event data*/
+        lv_res_t res = lv_event_send(ddlist, LV_EVENT_VALUE_CHANGED, &id);
         if(res != LV_RES_OK) return res;
 
         if(ext->stay_open == 0) {
diff --git a/src/lv_objx/lv_ddlist.h b/src/lv_objx/lv_ddlist.h
index c9253c30d..29103b0b0 100644
--- a/src/lv_objx/lv_ddlist.h
+++ b/src/lv_objx/lv_ddlist.h
@@ -97,7 +97,7 @@ void lv_ddlist_set_options(lv_obj_t * ddlist, const char * options);
 void lv_ddlist_set_selected(lv_obj_t * ddlist, uint16_t sel_opt);
 
 /**
- * Set the fix height for the drop down list
+ * Set a fix height for the drop down list
  * If 0 then the opened ddlist will be auto. sized else the set height will be applied.
  * @param ddlist pointer to a drop down list
  * @param h the height when the list is opened (0: auto size)
@@ -105,11 +105,11 @@ void lv_ddlist_set_selected(lv_obj_t * ddlist, uint16_t sel_opt);
 void lv_ddlist_set_fix_height(lv_obj_t * ddlist, lv_coord_t h);
 
 /**
- * Enable or disable the horizontal fit to the content
+ * Set a fix width for the drop down list
  * @param ddlist pointer to a drop down list
- * @param fit fit mode from `lv_fit_t` (Typically `LV_FIT_NONE` or `LV_FIT_TIGHT`)
+ * @param w the width when the list is opened (0: auto size)
  */
-void lv_ddlist_set_hor_fit(lv_obj_t * ddlist, lv_fit_t fit);
+void lv_ddlist_set_fix_width(lv_obj_t * ddlist, lv_coord_t w);
 
 /**
  * Set arrow draw in a drop down list
diff --git a/src/lv_objx/lv_gauge.c b/src/lv_objx/lv_gauge.c
index f2adcf72c..7abea8733 100644
--- a/src/lv_objx/lv_gauge.c
+++ b/src/lv_objx/lv_gauge.c
@@ -455,10 +455,10 @@ static void lv_gauge_draw_needle(lv_obj_t * gauge, const lv_area_t * mask)
     style_neddle_mid.body.radius     = LV_RADIUS_CIRCLE;
 
     lv_area_t nm_cord;
-    nm_cord.x1 = x_ofs - style->body.padding.top;
-    nm_cord.y1 = y_ofs - style->body.padding.top;
-    nm_cord.x2 = x_ofs + style->body.padding.top;
-    nm_cord.y2 = y_ofs + style->body.padding.top;
+    nm_cord.x1 = x_ofs - style->body.radius;
+    nm_cord.y1 = y_ofs - style->body.radius;
+    nm_cord.x2 = x_ofs + style->body.radius;
+    nm_cord.y2 = y_ofs + style->body.radius;
 
     lv_draw_rect(&nm_cord, mask, &style_neddle_mid, lv_obj_get_opa_scale(gauge));
 }
diff --git a/src/lv_objx/lv_mbox.c b/src/lv_objx/lv_mbox.c
index c240b5918..c4e84b59a 100644
--- a/src/lv_objx/lv_mbox.c
+++ b/src/lv_objx/lv_mbox.c
@@ -156,7 +156,7 @@ void lv_mbox_add_btns(lv_obj_t * mbox, const char ** btn_map)
     }
 
     lv_btnm_set_map(ext->btnm, btn_map);
-    lv_btnm_set_btn_ctrl_all(ext->btnm, LV_BTNM_CTRL_CLICK_TRIG | LV_BTNM_CTRL_NO_REPEAT, true);
+    lv_btnm_set_btn_ctrl_all(ext->btnm, LV_BTNM_CTRL_CLICK_TRIG | LV_BTNM_CTRL_NO_REPEAT);
     lv_obj_set_parent_event(ext->btnm, true);
 
     mbox_realign(mbox);
diff --git a/src/lv_objx/lv_roller.h b/src/lv_objx/lv_roller.h
index a9a80e9fc..ffc8b5163 100644
--- a/src/lv_objx/lv_roller.h
+++ b/src/lv_objx/lv_roller.h
@@ -98,13 +98,13 @@ void lv_roller_set_selected(lv_obj_t * roller, uint16_t sel_opt, lv_anim_enable_
 void lv_roller_set_visible_row_count(lv_obj_t * roller, uint8_t row_cnt);
 
 /**
- * Enable or disable the horizontal fit to the content
- * @param roller pointer to a roller
- * @param fit fit mode from `lv_fit_t` (Typically `LV_FIT_NONE` or `LV_FIT_TIGHT`)
+ * Set a fix width for the drop down list
+ * @param roller pointer to a roller obejct
+ * @param w the width when the list is opened (0: auto size)
  */
-static inline void lv_roller_set_hor_fit(lv_obj_t * roller, lv_fit_t fit)
+static inline void lv_roller_set_fix_width(lv_obj_t * roller, lv_coord_t w)
 {
-    lv_ddlist_set_hor_fit(roller, fit);
+    lv_ddlist_set_fix_width(roller, w);
 }
 
 /**
diff --git a/src/lv_objx/lv_slider.h b/src/lv_objx/lv_slider.h
index 5511eec4e..9d503c549 100644
--- a/src/lv_objx/lv_slider.h
+++ b/src/lv_objx/lv_slider.h
@@ -92,6 +92,16 @@ static inline void lv_slider_set_range(lv_obj_t * slider, int16_t min, int16_t m
     lv_bar_set_range(slider, min, max);
 }
 
+/**
+ * Set the animation time of the slider
+ * @param slider pointer to a bar object
+ * @param anim_time the animation time in milliseconds.
+ */
+static void lv_slider_set_anim_time(lv_obj_t * slider, uint16_t anim_time)
+{
+    lv_bar_set_anim_time(slider, anim_time);
+}
+
 /**
  * Set the 'knob in' attribute of a slider
  * @param slider pointer to slider object
diff --git a/src/lv_objx/lv_tabview.c b/src/lv_objx/lv_tabview.c
index 9e7de2976..5bce02057 100644
--- a/src/lv_objx/lv_tabview.c
+++ b/src/lv_objx/lv_tabview.c
@@ -274,7 +274,7 @@ lv_obj_t * lv_tabview_add_tab(lv_obj_t * tabview, const char * name)
     btnm_ext->map_p          = NULL;
 
     lv_btnm_set_map(ext->btns, ext->tab_name_ptr);
-    lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_NO_REPEAT, true);
+    lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_NO_REPEAT);
 
     /*Modify the indicator size*/
     const lv_style_t * style_tabs = lv_obj_get_style(ext->btns);
@@ -341,7 +341,7 @@ void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, lv_anim_enable_t an
     if(id != ext->tab_cur) res = lv_event_send(tabview, LV_EVENT_VALUE_CHANGED, &id);
     if(res != LV_RES_OK) return;
 
-    lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_TGL_STATE, false);
+    lv_btnm_clear_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_TGL_STATE);
 
     ext->tab_cur = id;
 
@@ -441,7 +441,7 @@ void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, lv_anim_enable_t an
 #endif
     }
 
-    lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_TGL_STATE, true);
+    lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_TGL_STATE);
 }
 
 /**
@@ -935,8 +935,8 @@ static void tab_btnm_event_cb(lv_obj_t * tab_btnm, lv_event_t event)
     uint16_t btn_id = lv_btnm_get_active_btn(tab_btnm);
     if(btn_id == LV_BTNM_BTN_NONE) return;
 
-    lv_btnm_set_btn_ctrl_all(tab_btnm, LV_BTNM_CTRL_TGL_STATE, false);
-    lv_btnm_set_btn_ctrl(tab_btnm, btn_id, LV_BTNM_CTRL_TGL_STATE, true);
+    lv_btnm_clear_btn_ctrl_all(tab_btnm, LV_BTNM_CTRL_TGL_STATE);
+    lv_btnm_set_btn_ctrl(tab_btnm, btn_id, LV_BTNM_CTRL_TGL_STATE);
 
     lv_obj_t * tab = lv_obj_get_parent(tab_btnm);
     lv_tabview_set_tab_act(tab, btn_id, true);