refactor: minor refactoring and widget docs update

demos/stress/lv_demo_stress.c

@@ -270,7 +270,7 @@ static void obj_test_task_cb(lv_timer_t * tmr)
                 obj = lv_label_create(obj);
                 lv_label_set_text(obj, "Tile: 1;1");
 
-                lv_obj_set_tile_id(tv, 1, 1, LV_ANIM_ON);
+                lv_tileview_set_tile_by_index(tv, 1, 1, LV_ANIM_ON);
             }
             break;
 

docs/widgets/bar.rst

@@ -54,16 +54,6 @@ The bar can be one of the following modes:
 
 Events
 ******
-
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` are sent
-   for the following parts:
-
-   -  :cpp:enumerator:`LV_BAR_DRAW_PART_INDICATOR` The indicator of the bar
-
-      -  ``part``: :cpp:enumerator:`LV_PART_INDICATOR`
-      -  ``draw_area``: area of the indicator
-      -  ``rect_dsc``
-
 See the events of the `Base object </widgets/obj>`__ too.
 
 Learn more about :ref:`events`.

docs/widgets/btnmatrix.rst

@@ -1,147 +0,0 @@
-Button matrix (lv_btnmatrix)
-============================
-
-Overview
-********
-
-The Button Matrix object is a lightweight way to display multiple
-buttons in rows and columns. Lightweight because the buttons are not
-actually created but just virtually drawn on the fly. This way, one
-button use only eight extra bytes of memory instead of the ~100-150
-bytes a normal `Button </widgets/btn>`__ object plus the 100 or so bytes
-for the `Label </widgets/label>`__ object.
-
-The Button matrix is added to the default group (if one is set). Besides
-the Button matrix is an editable object to allow selecting and clicking
-the buttons with encoder navigation too.
-
-Parts and Styles
-****************
-
--  :cpp:enumerator:`LV_PART_MAIN` The background of the button matrix, uses the
-   typical background style properties. ``pad_row`` and ``pad_column``
-   sets the space between the buttons.
--  :cpp:enumerator:`LV_PART_ITEMS` The buttons all use the text and typical background
-   style properties except translations and transformations.
-
-Usage
-*****
-
-Button's text
--------------
-
-There is a text on each button. To specify them a descriptor string
-array, called *map*, needs to be used. The map can be set with
-:cpp:expr:`lv_btnmatrix_set_map(btnm, my_map)`. The declaration of a map should
-look like ``const char * map[] = {"btn1", "btn2", "btn3", NULL}``. Note
-that the last element has to be either ``NULL`` or an empty string
-(``""``)!
-
-Use ``"\n"`` in the map to insert a **line break**. E.g.
-``{"btn1", "btn2", "\n", "btn3", ""}``. Each line's buttons have their
-width calculated automatically. So in the example the first row will
-have 2 buttons each with 50% width and a second row with 1 button having
-100% width.
-
-Control buttons
----------------
-
-The buttons' width can be set relative to the other button in the same
-row with :cpp:expr:`lv_btnmatrix_set_btn_width(btnm, btn_id, width)` E.g. in a
-line with two buttons: *btnA, width = 1* and *btnB, width = 2*, *btnA*
-will have 33 % width and *btnB* will have 66 % width. It's similar to
-how the
-```flex-grow`` <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-grow>`__
-property works in CSS. The width must be in the [1..15] range and the
-default width is 1.
-
-In addition to the width, each button can be customized with the
-following parameters:
-
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_HIDDEN`: Makes a button hidden (hidden buttons still take up space in the layout, they are just not visible or clickable)
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_NO_REPEAT`: Disable repeating when the button is long pressed
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_DISABLED`: Makes a button disabled Like :cpp:enumerator:`LV_STATE_DISABLED` on normal objects
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_CHECKABLE`: Enable toggling of a button. I.e. :cpp:enumerator:`LV_STATE_CHECKED` will be added/removed as the button is clicked
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_CHECKED`: Make the button checked. It will use the :cpp:enumerator:`LV_STATE_CHECHKED` styles.
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_CLICK_TRIG`: Enabled: send LV_EVENT_VALUE_CHANGE on CLICK, Disabled: send :cpp:enumerator:`LV_EVENT_VALUE_CHANGE` on PRESS
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_POPOVER`: Show the button label in a popover when pressing this key
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_RECOLOR`: Enable recoloring of button texts with ``#``. E.g. ``"It's #ff0000 red#"``
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_CUSTOM_1`: Custom free to use flag
-- :cpp:enumerator:`LV_BTNMATRIX_CTRL_CUSTOM_2`: Custom free to use flag
-
-By default, all flags are disabled.
-
-To set or clear a button's control attribute, use
-``lv_btnmatrix_set_btn_ctrl(btnm, btn_id, LV_BTNM_CTRL_...)`` and
-``lv_btnmatrix_clear_btn_ctrl(btnm, btn_id, LV_BTNMATRIX_CTRL_...)``
-respectively. More ``LV_BTNM_CTRL_...`` values can be OR-ed
-
-To set/clear the same control attribute for all buttons of a button
-matrix, use ``lv_btnmatrix_set_btn_ctrl_all(btnm, LV_BTNM_CTRL_...)``
-and ``lv_btnmatrix_clear_btn_ctrl_all(btnm, LV_BTNMATRIX_CTRL_...)``.
-
-The set a control map for a button matrix (similarly to the map for the
-text), use ``lv_btnmatrix_set_ctrl_map(btnm, ctrl_map)``. An element of
-``ctrl_map`` should look like
-``ctrl_map[0] = width | LV_BTNM_CTRL_NO_REPEAT |  LV_BTNM_CTRL_CHECHKABLE``.
-The number of elements should be equal to the number of buttons
-(excluding newlines characters).
-
-One check
----------
-
-The "One check" feature can be enabled with
-:cpp:expr:`lv_btnmatrix_set_one_checked(btnm, true)` to allow only one button to
-be checked at a time.
-
-Events
-******
-
--  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED`: Sent when a button is pressed/released or
-   repeated after long press. The event parameter is set to the ID of
-   the pressed/released button.
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` are sent
-   for the following types:
-
-   -  :cpp:enumerator:`LV_BTNMATRIX_DRAW_PART_BTN` The individual buttons.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_ITEMS`
-      -  ``id``:index of the button being drawn
-      -  ``draw_area``: the area of the button
-      -  ``rect_dsc``
-
-See the events of the `Base object </widgets/obj>`__ too.
-
-:cpp:expr:`lv_btnmatrix_get_selected_btn(btnm)` returns the index of the most
-recently released or focused button or :cpp:enumerator:`LV_BTNMATRIX_BTN_NONE` if no
-such button.
-
-:cpp:expr:`lv_btnmatrix_get_btn_text(btnm, btn_id)` returns a pointer to the
-text of ``btn_id``\ th button.
-
-Learn more about :ref:`events`.
-
-Keys
-****
-
--  ``LV_KEY_RIGHT/UP/LEFT/RIGHT`` To navigate among the buttons to
-   select one
--  :cpp:enumerator:`LV_KEY_ENTER` To press/release the selected button
-
-Note that long pressing the button matrix with an encoder can mean to
-enter/leave edit mode and simply long pressing a button to make it
-repeat as well. To avoid this contradiction it's suggested to add
-:cpp:expr:`lv_btnmatrix_set_btn_ctrl_all(btnm, LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_NO_REPEAT)`
-to the button matrix if used with encoder. This way, the pressed button
-repeat feature is disabled and on leaving edit mode the selected button
-won't be activated.
-
-Learn more about :ref:`indev_keys`.
-
-Example
-*******
-
-.. include:: ../examples/widgets/btnmatrix/index.rst
-
-API
-***

docs/widgets/button.rst

@@ -1,4 +1,4 @@
-Button (lv_btn)
+Button (lv_button)
 ===============
 
 Overview
@@ -46,7 +46,7 @@ Learn more about :ref:`indev_keys`.
 Example
 *******
 
-.. include:: ../examples/widgets/btn/index.rst
+.. include:: ../examples/widgets/button/index.rst
 
 API
 ***

docs/widgets/butttonmatrix.rst

@@ -0,0 +1,138 @@
+Button matrix (lv_buttonmatrix)
+============================
+
+Overview
+********
+
+The Button Matrix object is a lightweight way to display multiple
+buttons in rows and columns. Lightweight because the buttons are not
+actually created but just virtually drawn on the fly. This way, one
+button use only eight extra bytes of memory instead of the ~100-150
+bytes a normal `Button </widgets/button>`__ object plus the 100 or so bytes
+for the `Label </widgets/label>`__ object.
+
+The Button matrix is added to the default group (if one is set). Besides
+the Button matrix is an editable object to allow selecting and clicking
+the buttons with encoder navigation too.
+
+Parts and Styles
+****************
+
+-  :cpp:enumerator:`LV_PART_MAIN` The background of the button matrix, uses the
+   typical background style properties. ``pad_row`` and ``pad_column``
+   sets the space between the buttons.
+-  :cpp:enumerator:`LV_PART_ITEMS` The buttons all use the text and typical background
+   style properties except translations and transformations.
+
+Usage
+*****
+
+Button's text
+-------------
+
+There is a text on each button. To specify them a descriptor string
+array, called *map*, needs to be used. The map can be set with
+:cpp:expr:`lv_buttonmatrix_set_map(buttonm, my_map)`. The declaration of a map should
+look like ``const char * map[] = {"button1", "button2", "button3", NULL}``. Note
+that the last element has to be either ``NULL`` or an empty string
+(``""``)!
+
+Use ``"\n"`` in the map to insert a **line break**. E.g.
+``{"button1", "button2", "\n", "button3", ""}``. Each line's buttons have their
+width calculated automatically. So in the example the first row will
+have 2 buttons each with 50% width and a second row with 1 button having
+100% width.
+
+Control buttons
+---------------
+
+The buttons' width can be set relative to the other button in the same
+row with :cpp:expr:`lv_buttonmatrix_set_button_width(buttonm, button_id, width)` E.g. in a
+line with two buttons: *buttonA, width = 1* and *buttonB, width = 2*, *buttonA*
+will have 33 % width and *buttonB* will have 66 % width. It's similar to
+how the
+```flex-grow`` <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-grow>`__
+property works in CSS. The width must be in the [1..15] range and the
+default width is 1.
+
+In addition to the width, each button can be customized with the
+following parameters:
+
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_HIDDEN`: Makes a button hidden (hidden buttons still take up space in the layout, they are just not visible or clickable)
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_NO_REPEAT`: Disable repeating when the button is long pressed
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_DISABLED`: Makes a button disabled Like :cpp:enumerator:`LV_STATE_DISABLED` on normal objects
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_CHECKABLE`: Enable toggling of a button. I.e. :cpp:enumerator:`LV_STATE_CHECKED` will be added/removed as the button is clicked
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_CHECKED`: Make the button checked. It will use the :cpp:enumerator:`LV_STATE_CHECHKED` styles.
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_CLICK_TRIG`: Enabled: send LV_EVENT_VALUE_CHANGE on CLICK, Disabled: send :cpp:enumerator:`LV_EVENT_VALUE_CHANGE` on PRESS
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_POPOVER`: Show the button label in a popover when pressing this key
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_RECOLOR`: Enable recoloring of button texts with ``#``. E.g. ``"It's #ff0000 red#"``
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_CUSTOM_1`: Custom free to use flag
+- :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_CUSTOM_2`: Custom free to use flag
+
+By default, all flags are disabled.
+
+To set or clear a button's control attribute, use
+``lv_buttonmatrix_set_button_ctrl(buttonm, button_id, LV_BUTTONMATRIX_CTRL_...)`` and
+``lv_buttonmatrix_clear_button_ctrl(buttonm, button_id, LV_BUTTONMATRIX_CTRL_...)``
+respectively. More ``LV_BUTTONMATRIX_CTRL_...`` values can be OR-ed
+
+To set/clear the same control attribute for all buttons of a button
+matrix, use ``lv_buttonmatrix_set_button_ctrl_all(buttonm, LV_BUTTONMATRIX_CTRL_...)``
+and ``lv_buttonmatrix_clear_button_ctrl_all(buttonm, LV_BUTTONMATRIX_CTRL_...)``.
+
+The set a control map for a button matrix (similarly to the map for the
+text), use ``lv_buttonmatrix_set_ctrl_map(buttonm, ctrl_map)``. An element of
+``ctrl_map`` should look like
+``ctrl_map[0] = width | LV_BUTTONMATRIX_CTRL_NO_REPEAT |  LV_BUTTONMATRIX_CTRL_CHECHKABLE``.
+The number of elements should be equal to the number of buttons
+(excluding newlines characters).
+
+One check
+---------
+
+The "One check" feature can be enabled with
+:cpp:expr:`lv_buttonmatrix_set_one_checked(buttonm, true)` to allow only one button to
+be checked at a time.
+
+Events
+******
+
+-  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED`: Sent when a button is pressed/released or
+   repeated after long press. The event parameter is set to the ID of
+   the pressed/released button.
+
+See the events of the `Base object </widgets/obj>`__ too.
+
+:cpp:expr:`lv_buttonmatrix_get_selected_button(buttonm)` returns the index of the most
+recently released or focused button or :cpp:enumerator:`LV_BUTTONMATRIX_BUTTON_NONE` if no
+such button.
+
+:cpp:expr:`lv_buttonmatrix_get_button_text(buttonm, button_id)` returns a pointer to the
+text of ``button_id``\ th button.
+
+Learn more about :ref:`events`.
+
+Keys
+****
+
+-  ``LV_KEY_RIGHT/UP/LEFT/RIGHT`` To navigate among the buttons to
+   select one
+-  :cpp:enumerator:`LV_KEY_ENTER` To press/release the selected button
+
+Note that long pressing the button matrix with an encoder can mean to
+enter/leave edit mode and simply long pressing a button to make it
+repeat as well. To avoid this contradiction it's suggested to add
+:cpp:expr:`lv_buttonmatrix_set_button_ctrl_all(buttonm, LV_BUTTONMATRIX_CTRL_CLICK_TRIG | LV_BUTTONMATRIX_CTRL_NO_REPEAT)`
+to the button matrix if used with encoder. This way, the pressed button
+repeat feature is disabled and on leaving edit mode the selected button
+won't be activated.
+
+Learn more about :ref:`indev_keys`.
+
+Example
+*******
+
+.. include:: ../examples/widgets/buttonmatrix/index.rst
+
+API
+***

docs/widgets/calendar.rst

@@ -73,7 +73,7 @@ Events
 -  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED` Sent if a date is clicked.
    :cpp:expr:`lv_calendar_get_pressed_date(calendar, &date)` set ``date`` to the
    date currently being pressed. Returns :cpp:enumerator:`LV_RES_OK` if there is a
-   valid pressed date, else :cpp:enumerator:`LV_RES_INV`.
+   valid pressed date, else :cpp:enumerator:`LV_RES_INVALID`.
 
 Learn more about :ref:`events`.
 

docs/widgets/canvas.rst

@@ -6,8 +6,7 @@ Overview
 
 A Canvas inherits from `Image </widgets/img>`__ where the user can draw
 anything. Rectangles, texts, images, lines, arcs can be drawn here using
-lvgl's drawing engine. Additionally "effects" can be applied, such as
-rotation, zoom and blur.
+lvgl's drawing engine.
 
 Parts and Styles
 ****************
@@ -21,95 +20,53 @@ Usage
 Buffer
 ------
 
-The Canvas needs a buffer in which stores the drawn image. To assign a
+The Canvas needs a buffer in which it stores the drawn image. To assign a
 buffer to a Canvas, use
-:cpp:expr:`lv_canvas_set_buffer(canvas, buffer, width, height, LV_IMG_CF_...)`.
+:cpp:expr:`lv_canvas_set_buffer(canvas, buffer, width, height, LV_COLOR_FORMAT_...)`.
 Where ``buffer`` is a static buffer (not just a local variable) to hold
-the image of the canvas. For example,
-``static uint8_t buffer[LV_CANVAS_BUF_SIZE_TRUE_COLOR(width, height)]``.
-``LV_CANVAS_BUF_SIZE_...`` macros help to determine the size of the
-buffer with different color formats.
+the image of the canvas. For example for a 100x50 ARGB8888 buffer:
+``static uint8_t buffer[100 * 50 * 4]``.
 
-The canvas supports all the built-in color formats like
-:cpp:enumerator:`LV_IMG_CF_TRUE_COLOR` or :cpp:enumerator:`LV_IMG_CF_INDEXED_2BIT`. See the full
+Or you can use
+``static uint8_t buffer[LV_CANVAS_BUF_SIZE(width, height, bit_per_pixel, stride_in_bytes)]``.
+
+The canvas supports all the color formats like
+:cpp:enumerator:`LV_COLOR_FORMAT_ARGB8888` or :cpp:enumerator:`LV_COLOR_FORMAT_I2`. See the full
 list in the `Color formats </overview/image.html#color-formats>`__
 section.
 
 Indexed colors
 --------------
 
-For ``LV_IMG_CF_INDEXED_1/2/4/8`` color formats a palette needs to be
-initialized with :cpp:expr:`lv_canvas_set_palette(canvas, 3, LV_COLOR_RED)`. It
+For ``LV_COLOR_FORMAT_I1/2/4/8`` color formats a palette needs to be
+initialized with :cpp:expr:`lv_canvas_set_palette(canvas, 3, lv_color_hex(0xff0000))`. It
 sets pixels with *index=3* to red.
 
 Drawing
 -------
 
 To set a pixel's color on the canvas, use
-:cpp:expr:`lv_canvas_set_px_color(canvas, x, y, LV_COLOR_RED)`. With
-``LV_IMG_CF_INDEXED_...`` the index of the color needs to be passed as
-color. E.g. ``lv_color_t c; c.full = 3;``
+:cpp:expr:`lv_canvas_set_px_color(canvas, x, y, color, opa)`. With
+``LV_COLOR_FORMAT_I1/2/4/8`` the index of the color needs to be passed as
+color like this ``lv_color_from_int(13);``. It passes index 13 as a color.
 
-To set a pixel's opacity with :cpp:enumerator:`LV_IMG_CF_TRUE_COLOR_ALPHA` or
-``LV_IMG_CF_ALPHA_...`` format on the canvas, use
-:cpp:expr:`lv_canvas_set_px_opa(canvas, x, y, opa)`.
 
-:cpp:expr:`lv_canvas_fill_bg(canvas, LV_COLOR_BLUE, LV_OPA_50)` fills the whole
+:cpp:expr:`lv_canvas_fill_bg(canvas, lv_color_hex(0x00ff00), LV_OPA_50)` fills the whole
 canvas to blue with 50% opacity. Note that if the current color format
-doesn't support colors (e.g. :cpp:enumerator:`LV_IMG_CF_ALPHA_2BIT`) the color will be
+doesn't support colors (e.g. :cpp:enumerator:`LV_COLOR_FORMAT_A8`) the color will be
 ignored. Similarly, if opacity is not supported
-(e.g. :cpp:enumerator:`LV_IMG_CF_TRUE_COLOR`) it will be ignored.
+(e.g. :cpp:enumerator:`LV_COLOR_FORMAT_RGB565`) it will be ignored.
 
 An array of pixels can be copied to the canvas with
 :cpp:expr:`lv_canvas_copy_buf(canvas, buffer_to_copy, x, y, width, height)`. The
 color format of the buffer and the canvas need to match.
 
-To draw something to the canvas use:
+To draw something to the canvas use LVGL's draw functions directly. See the examples for more details.
 
-- :cpp:expr:`lv_canvas_draw_rect(canvas, x, y, width, height, &draw_dsc)`
-- :cpp:expr:`lv_canvas_draw_text(canvas, x, y, max_width, &draw_dsc, txt)`
-- :cpp:expr:`lv_canvas_draw_img(canvas, x, y, &img_src, &draw_dsc)`
-- :cpp:expr:`lv_canvas_draw_line(canvas, point_array, point_cnt, &draw_dsc)`
-- :cpp:expr:`lv_canvas_draw_polygon(canvas, points_array, point_cnt, &draw_dsc)`
-- :cpp:expr:`lv_canvas_draw_arc(canvas, x, y, radius, start_angle, end_angle, &draw_dsc)`
+The draw function can draw to any color format to which LVGL can render. Typically it means
+:cpp:enumerator:`LV_COLOR_FORMAT_RGB565`, :cpp:enumerator:`LV_COLOR_FORMAT_RGB888`,
+:cpp:enumerator:`LV_COLOR_FORMAT_XRGB888`, and :cpp:enumerator:`LV_COLOR_FORMAT_ARGB8888`.
 
-``draw_dsc`` is a ``lv_draw_rect/label/img/line/arc_dsc_t`` variable
-which should be first initialized with one of
-``lv_draw_rect/label/img/line/arc_dsc_init()`` and then modified with
-the desired colors and other values.
-
-The draw function can draw to any color format. For example, it's
-possible to draw a text to an :cpp:enumerator:`LV_IMG_VF_ALPHA_8BIT` canvas and use
-the result image as a `draw mask </overview/drawing>`__ later.
-
-Transformations
----------------
-
-:cpp:func:`lv_canvas_transform` can be used to rotate and/or scale the image
-of an image and store the result on the canvas. The function needs the
-following parameters:
-
-- ``canvas`` pointer to a canvas object to store the result of the transformation.
-- ``img pointer`` to an image descriptor to transform. Can be the image descriptor of another canvas too (:cpp:func:`lv_canvas_get_img`).
-- ``angle`` the angle of rotation (0..3600), 0.1 deg resolution
-- ``zoom`` zoom factor (256: no zoom, 512: double size, 128: half size);
-- ``offset_x`` offset X to tell where to put the result data on destination canvas
-- ``offset_y`` offset X to tell where to put the result data on destination canvas
-- ``pivot_x`` pivot X of rotation. Relative to the source canvas. Set to ``source width / 2`` to rotate around the center
-- ``pivot_y`` pivot Y of rotation. Relative to the source canvas. Set to ``source height / 2`` to rotate around the center
-- ``antialias`` true: apply anti-aliasing during the transformation. Looks better but slower.
-
-Note that a canvas can't be rotated on itself. You need a source and
-destination canvas or image.
-
-Blur
-----
-
-A given area of the canvas can be blurred horizontally with
-:cpp:expr:`lv_canvas_blur_hor(canvas, &area, r)` or vertically with
-:cpp:expr:`lv_canvas_blur_ver(canvas, &area, r)`. ``r`` is the radius of the
-blur (greater value means more intensive burring). ``area`` is the area
-where the blur should be applied (interpreted relative to the canvas).
 
 Events
 ******

docs/widgets/chart.rst

@@ -166,24 +166,14 @@ Note that :cpp:enumerator:`LV_CHART_UPDATE_MODE_SHIFT` also changes the
 Tick marks and labels
 ---------------------
 
-Ticks and labels can be added to the axis with
-:cpp:expr:`lv_chart_set_axis_tick(chart, axis, major_len, minor_len, major_cnt, minor_cnt, label_en, draw_size)`.
-
-- ``axis`` can be ``LV_CHART_AXIS_X/PRIMARY_Y/SECONDARY_Y``
-- ``major_len`` is the length of major ticks - ``minor_len`` is the length of minor ticks
-- ``major_cnt`` is the number of major ticks on the axis
-- ``minor_cnt`` in the number of minor ticks between two major ticks
-- ``label_en`` ``true``: enable label drawing on major ticks
-- ``draw_size`` extra size required to draw the tick and labels (start with 20 px and increase if the ticks/labels are clipped)
+With the help of </widgets/scale>`__ vertical and horizontal scales can be added in a very flexible way.
+See the example below to learn more.
 
 Zoom
 ----
 
-The chart can be zoomed independently in x and y directions with
-:cpp:expr:`lv_chart_set_scale_x(chart, factor)` and
-:cpp:expr:`lv_chart_set_scale_y(chart, factor)`. If ``factor`` is 256 there is no
-zoom. 512 means double zoom, etc. Fractional values are also possible
-but < 256 value is not allowed.
+To zoom the chart all you need to is wrapping it into a parent container and set the chart's width or height
+to larger value. This way the chart will be scrollable on its parent.
 
 Cursor
 ------
@@ -211,63 +201,6 @@ Events
 -  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED` Sent when a new point is clicked pressed.
    :cpp:expr:`lv_chart_get_pressed_point(chart)` returns the zero-based index of
    the pressed point.
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` are sent
-   with the following types:
-
-   -  :cpp:enumerator:`LV_CHART_DRAW_PART_DIV_LINE_INIT` Used before/after drawn the
-      div lines to add masks to any extra drawings. The following fields
-      are set:
-
-      -  ``part``: :cpp:enumerator:`LV_PART_MAIN`
-      -  ``line_dsc``
-
-   -  :cpp:enumerator:`LV_CHART_DRAW_PART_DIV_LINE_HOR`,
-      :cpp:enumerator:`LV_CHART_DRAW_PART_DIV_LINE_VER` Used for each horizontal and
-      vertical division lines.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_MAIN`
-      -  ``id``: index of the line
-      -  ``p1``, ``p2``: points of the line
-      -  ``line_dsc``
-
-   -  :cpp:enumerator:`LV_CHART_DRAW_PART_LINE_AND_POINT` Used on line and scatter
-      charts for lines and points.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_ITEMS`
-      -  ``id``: index of the point
-      -  ``value``: value of ``id``\ th point
-      -  ``p1``, ``p2``: points of the line
-      -  ``draw_area``: area of the point
-      -  ``line_dsc``
-      -  ``rect_dsc``
-      -  ``sub_part_ptr``: pointer to the series
-
-   -  :cpp:enumerator:`LV_CHART_DRAW_PART_BAR` Used on bar charts for the rectangles.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_ITEMS`
-      -  ``id``: index of the point
-      -  ``value``: value of ``id``\ th point
-      -  ``draw_area``: area of the point
-      -  ``rect_dsc``:
-      -  ``sub_part_ptr``: pointer to the series
-
-   -  :cpp:enumerator:`LV_CHART_DRAW_PART_CURSOR` Used on cursor lines and points.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_CURSOR`
-      -  ``p1``, ``p2``: points of the line
-      -  ``line_dsc``
-      -  ``rect_dsc``
-      -  ``draw_area``: area of the points
-
-   -  :cpp:enumerator:`LV_CHART_DRAW_PART_TICK_LABEL` Used on tick lines and labels.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_ITEMS`
-      -  ``id``: axis
-      -  ``value``: value of the tick
-      -  ``text``: ``value`` converted to decimal or ``NULL`` for minor
-         ticks
-      -  ``line_dsc``,
-      -  ``label_dsc``,
 
 See the events of the `Base object </widgets/obj>`__ too.
 

docs/widgets/checkbox.rst

@@ -53,14 +53,6 @@ Events
 ******
 
 -  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED` Sent when the checkbox is toggled.
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` are sent
-   for the following types:
-
-   -  :cpp:enumerator:`LV_CHECKBOX_DRAW_PART_BOX` The tickbox of the checkbox
-
-      -  ``part``: :cpp:enumerator:`LV_PART_INDICATOR`
-      -  ``draw_area``: the area of the tickbox
-      -  ``rect_dsc``
 
 See the events of the `Base object </widgets/obj>`__ too.
 

docs/widgets/colorwheel.rst

@@ -1,75 +0,0 @@
-Color wheel (lv_colorwheel)
-===========================
-
-Overview
-********
-
-As its name implies *Color wheel* allows the user to select a color. The
-Hue, Saturation and Value of the color can be selected separately.
-
-Long pressing the object, the color wheel will change to the next
-parameter of the color (hue, saturation or value). A double click will
-reset the current parameter.
-
-Parts and Styles
-****************
-
--  :cpp:enumerator:`LV_PART_MAIN` Only ``arc_width`` is used to set the width of the
-   color wheel
--  :cpp:enumerator:`LV_PART_KNOB` A rectangle (or circle) drawn on the current value.
-   It uses all the rectangle like style properties and padding to make
-   it larger than the width of the arc.
-
-Usage
-*****
-
-Create a color wheel
---------------------
-
-:cpp:expr:`lv_colorwheel_create(parent, knob_recolor)` creates a new color
-wheel. With ``knob_recolor=true`` the knob's background color will be
-set to the current color.
-
-Set color
----------
-
-The color can be set manually with
-``lv_colorwheel_set_hue/saturation/value(colorwheel, x)`` or all at once
-with :cpp:expr:`lv_colorwheel_set_hsv(colorwheel, hsv)` or
-:cpp:expr:`lv_colorwheel_set_color(colorwheel, rgb)`
-
-Color mode
-----------
-
-The current color mode can be manually selected with
-:cpp:expr:`lv_colorwheel_set_mode(colorwheel, LV_COLORWHEEL_MODE_HUE)`.
-
-The color mode can be fixed (so as to not change with long press) using
-:cpp:expr:`lv_colorwheel_set_mode_fixed(colorwheel, true)`
-
-Events
-******
-
--  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED` Sent if a new color is selected.
-
-Learn more about :ref:`events`.
-
-Keys
-****
-
--  :cpp:enumerator:`LV_KEY_UP`, :cpp:enumerator:`LV_KEY_RIGHT` Increment the current parameter's
-   value by 1
--  :cpp:enumerator:`LV_KEY_DOWN`, :cpp:enumerator:`LV_KEY_LEFT` Decrement the current parameter's
-   value by 1
--  :cpp:enumerator:`LV_KEY_ENTER` A long press will show the next mode. Double click
-   to reset the current parameter.
-
-Learn more about :ref:`indev_keys`.
-
-Example
-*******
-
-.. include:: ../examples/widgets/colorwheel/index.rst
-
-API
-***

docs/widgets/index.rst

@@ -11,15 +11,15 @@ Widgets
     arc
     animimg
     bar
-    btn
-    btnmatrix
+    button
+    buttonmatrix
     calendar
     chart
     colorwheel
     canvas
     checkbox
     dropdown
-    img
+    image
     imgbtn
     keyboard
     label

docs/widgets/keyboard.rst

@@ -4,7 +4,7 @@ Keyboard (lv_keyboard)
 Overview
 ********
 
-The Keyboard object is a special `Button matrix </widgets/btnmatrix>`__
+The Keyboard object is a special `Button matrix </widgets/buttonmatrix>`__
 with predefined keymaps and other features to realize a virtual keyboard
 to write texts into a `Text area </widgets/textarea>`__.
 
@@ -49,7 +49,7 @@ To enable key popovers on press, like on common Android and iOS
 keyboards, use :cpp:expr:`lv_keyboard_set_popovers(kb, true)`. The default
 control maps are preconfigured to only show the popovers on keys that
 produce a symbol and not on e.g. space. If you use a custom keymap, set
-the :cpp:enumerator:`LV_BTNMATRIX_CTRL_POPOVER` flag for all keys that you want to
+the :cpp:enumerator:`LV_BUTTONMATRIX_CTRL_POPOVER` flag for all keys that you want to
 show a popover.
 
 Note that popovers for keys in the top row will draw outside the widget
@@ -65,7 +65,7 @@ New Keymap
 
 You can specify a new map (layout) for the keyboard with
 :cpp:expr:`lv_keyboard_set_map(kb, LV_KEYBOARD_MODE_..., kb_map, kb_ctrl)`. See
-the `Button matrix </widgets/btnmatrix>`__ for more information about
+the `Button matrix </widgets/buttonmatrix>`__ for more information about
 creating new maps and ctrls.
 
 Keep in mind that using following keywords will have the same effect as

docs/widgets/label.rst

@@ -101,7 +101,7 @@ the Label widget only allows manual text selection with
 Text alignment
 --------------
 
-To horizontally align the lines of a label the `text_align` style property can be used with 
+To horizontally align the lines of a label the `text_align` style property can be used with
 :cpp:expr:`lv_obj_set_style_text_align()` or :cpp:expr:`lv_style_set_text_align()`
 Note that it has a visible effect only if
 
@@ -121,11 +121,8 @@ Custom scrolling animations
 Some aspects of the scrolling animations in long modes
 :cpp:enumerator:`LV_LABEL_LONG_SCROLL` and :cpp:enumerator:`LV_LABEL_LONG_SCROLL_CIRCULAR` can be
 customized by setting the animation property of a style, using
-:cpp:func:`lv_style_set_anim`. Currently, only the start and repeat delay of
-the circular scrolling animation can be customized. If you need to
-customize another aspect of the scrolling animation, feel free to open
-an `issue on Github <https://github.com/lvgl/lvgl/issues>`__ to request
-the feature.
+:cpp:func:`lv_style_set_anim`.
+It will be treated as a template which will be used to create the scroll animatins.
 
 Symbols
 -------

docs/widgets/led.rst

@@ -39,16 +39,6 @@ the ON and OFF state.
 Events
 ******
 
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` is sent
-   for the following types:
-
-   -  :cpp:enumerator:`LV_LED_DRAW_PART_RECTANGLE` The main rectangle.
-      :cpp:enumerator:`LV_OBJ_DRAW_PART_RECTANGLE` is not sent by the base object.
-
-      -  ``part``: :cpp:enumerator:`LV_PART_MAIN`
-      -  ``rect_dsc``
-      -  ``draw_area``: the area of the rectangle
-
 See the events of the `Base object </widgets/obj>`__ too.
 
 Learn more about :ref:`events`.

docs/widgets/line.rst

@@ -19,7 +19,7 @@ Usage
 Set points
 ----------
 
-The points have to be stored in an :cpp:struct:`lv_point_t` array and passed to
+The points have to be stored in an :cpp:struct:`lv_point_precise_t` array and passed to
 the object by the :cpp:expr:`lv_line_set_points(lines, point_array, point_cnt)`
 function.
 

docs/widgets/list.rst

@@ -15,7 +15,7 @@ Parts and Styles
 - :cpp:enumerator:`LV_PART_MAIN` The main part of the list that uses all the typical background properties
 - :cpp:enumerator:`LV_PART_SCROLLBAR` The scrollbar. See the `Base objects </widgets/obj>`__ documentation for details.
 
-**Buttons and Texts** See the `Button </widgets/btn>`__\ 's and `Label </widgets/label>`__\ 's documentation.
+**Buttons and Texts** See the `Button </widgets/button>`__\ 's and `Label </widgets/label>`__\ 's documentation.
 
 Usage
 *****
@@ -23,7 +23,7 @@ Usage
 Buttons
 -------
 
-:cpp:expr:`lv_list_add_btn(list, icon, text)` adds a full-width button with an icon
+:cpp:expr:`lv_list_add_button(list, icon, text)` adds a full-width button with an icon
 
 - that can be an image or symbol
 - and a text.

docs/widgets/menu.rst

@@ -11,11 +11,11 @@ Parts and Styles
 ****************
 
 The menu widget is built from the following objects: - Main container:
-lv_menu_main_cont - Main header: lv_menu_main_header_cont - Back btn:
-`lv_btn </widgets/btn>`__ - Back btn icon: `lv_img </widgets/img>`__ -
+lv_menu_main_cont - Main header: lv_menu_main_header_cont - Back button:
+`lv_button </widgets/button>`__ - Back button icon: `lv_img </widgets/img>`__ -
 Main page: lv_menu_page - Sidebar container: lv_menu_sidebar_cont -
-Sidebar header: lv_menu_sidebar_header_cont - Back btn:
-`lv_btn </widgets/btn>`__ - Back btn icon: `lv_img </widgets/img>`__ -
+Sidebar header: lv_menu_sidebar_header_cont - Back button:
+`lv_button </widgets/button>`__ - Back button icon: `lv_img </widgets/img>`__ -
 Sidebar page: lv_menu_page
 
 Usage
@@ -46,7 +46,7 @@ The following root back button modes exist:
 - :cpp:enumerator:`LV_MENU_ROOT_BACK_BTN_ENABLED`
 
 You can set root back button modes with
-:cpp:expr:`lv_menu_set_mode_root_back_btn(menu, LV_MENU_ROOT_BACK_BTN...)`.
+:cpp:expr:`lv_menu_set_mode_root_back_button(menu, LV_MENU_ROOT_BACK_BTN...)`.
 
 Create a menu page
 ------------------
@@ -70,8 +70,8 @@ Once a menu page has been created, you can set it to the sidebar with
 Linking between menu pages
 --------------------------
 
-For instance, you have created a btn obj in the main page. When you
-click the btn obj, you want it to open up a new page, use
+For instance, you have created a button obj in the main page. When you
+click the button obj, you want it to open up a new page, use
 :cpp:expr:`lv_menu_set_load_page_event(menu, obj, new page)`.
 
 Create a menu container, section, separator
@@ -94,12 +94,12 @@ Events
    -  :cpp:expr:`lv_menu_get_cur_sidebar_page(menu)` returns a pointer to menu
       page that is currently displayed in sidebar.
 
--  :cpp:enumerator:`LV_EVENT_CLICKED` Sent when a back btn in a header from either
+-  :cpp:enumerator:`LV_EVENT_CLICKED` Sent when a back button in a header from either
    main or sidebar is clicked. :cpp:enumerator:`LV_OBJ_FLAG_EVENT_BUBBLE` is enabled
    on the buttons so you can add events to the menu itself.
 
-   -  :cpp:expr:`lv_menu_back_btn_is_root(menu, btn)` to check if btn is root
-      back btn
+   -  :cpp:expr:`lv_menu_back_button_is_root(menu, button)` to check if button is root
+      back button
 
 See the events of the `Base object </widgets/obj>`__ too.
 

docs/widgets/obj.rst

@@ -154,7 +154,7 @@ Flags
 -----
 
 There are some attributes which can be enabled/disabled by
-``lv_obj_add/remove_flag(obj, LV_OBJ_FLAG_...)``:
+``lv_obj_add/remove_flag(obj, LV_OBJ_FLAG_...)`` and ``lv_obj_set_flag(obj, LV_OBJ_FLAG_..., true/false)``
 
 -  :cpp:enumerator:`LV_OBJ_FLAG_HIDDEN` Make the object hidden. (Like it wasn't there at all)
 -  :cpp:enumerator:`LV_OBJ_FLAG_CLICKABLE` Make the object clickable by input devices
@@ -176,7 +176,9 @@ There are some attributes which can be enabled/disabled by
 -  :cpp:enumerator:`LV_OBJ_FLAG_ADV_HITTEST` Allow performing more accurate hit (click) test. E.g. accounting for rounded corners
 -  :cpp:enumerator:`LV_OBJ_FLAG_IGNORE_LAYOUT` Make the object positionable by the layouts
 -  :cpp:enumerator:`LV_OBJ_FLAG_FLOATING` Do not scroll the object when the parent scrolls and ignore layout
+-  :cpp:enumerator:`LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS` Enable sending ``LV_EVENT_DRAW_TASK_ADDED`` events
 -  :cpp:enumerator:`LV_OBJ_FLAG_OVERFLOW_VISIBLE` Do not clip the children's content to the parent's boundary
+-  :cpp:enumerator:`LV_OBJ_FLAG_FLEX_IN_NEW_TRACK` Start a new flex track on this item
 -  :cpp:enumerator:`LV_OBJ_FLAG_LAYOUT_1` Custom flag, free to use by layouts
 -  :cpp:enumerator:`LV_OBJ_FLAG_LAYOUT_2` Custom flag, free to use by layouts
 -  :cpp:enumerator:`LV_OBJ_FLAG_WIDGET_1` Custom flag, free to use by widget
@@ -224,27 +226,6 @@ Events
 
 -  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED` when the :cpp:enumerator:`LV_OBJ_FLAG_CHECKABLE` flag is
    enabled and the object clicked (on transition to/from the checked state)
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` is sent
-   for the following types:
-
-   -  :cpp:enumerator:`LV_OBJ_DRAW_PART_RECTANGLE` The main rectangle
-
-      -  ``part``: :cpp:enumerator:`LV_PART_MAIN`
-      -  ``rect_dsc``
-      -  ``draw_area``: the area of the rectangle
-
-   -  :cpp:enumerator:`LV_OBJ_DRAW_PART_BORDER_POST` The border if the ``border_post``
-      style property is ``true``
-
-      -  ``part``: :cpp:enumerator:`LV_PART_MAIN`
-      -  ``rect_dsc``
-      -  ``draw_area``: the area of the rectangle
-
-   -  :cpp:enumerator:`LV_OBJ_DRAW_PART_SCROLLBAR` the scrollbars
-
-      -  ``part``: :cpp:enumerator:`LV_PART_SCROLLBAR`
-      -  ``rect_dsc``
-      -  ``draw_area``: the area of the rectangle
 
 Learn more about :ref:`events`.
 

docs/widgets/slider.rst

@@ -72,22 +72,6 @@ Events
    changed with keys. The event is sent continuously while the slider is
    being dragged.
 -  :cpp:enumerator:`LV_EVENT_RELEASED` Sent when the slider has just been released.
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` are sent
-   for the following parts.
-
-   -  :cpp:enumerator:`LV_SLIDER_DRAW_PART_KNOB` The main (right) knob of the slider
-
-      -  ``part``: :cpp:enumerator:`LV_PART_KNOB`
-      -  ``draw_area``: area of the indicator
-      -  ``rect_dsc``
-      -  ``id``: 0
-
-   -  :cpp:enumerator:`LV_SLIDER_DRAW_PART_KNOB` The left knob of the slider
-
-      -  ``part``: :cpp:enumerator:`LV_PART_KNOB`
-      -  ``draw_area``: area of the indicator
-      -  ``rect_dsc``
-      -  ``id``: 1
 
 See the events of the `Bar </widgets/bar>`__ too.
 

docs/widgets/span.rst

@@ -88,7 +88,7 @@ The spangroup can be set to one the following modes:
 
 Use :cpp:expr:`lv_spangroup_set_overflow(spangroup, LV_SPAN_OVERFLOW_CLIP)` to set object overflow mode.
 
-first line indent
+First line indent
 -----------------
 
 Use :cpp:expr:`lv_spangroup_set_indent(spangroup, 20)` to set the indent of the
@@ -96,7 +96,7 @@ first line. all modes support pixel units, in addition to :cpp:enumerator:`LV_SP
 and :cpp:enumerator:`LV_SPAN_MODE_BREAK` mode supports percentage units
 too.
 
-lines
+Lines
 -----
 
 Use :cpp:expr:`lv_spangroup_set_max_lines(spangroup, 10)` to set the maximum number

docs/widgets/spinner.rst

@@ -18,8 +18,10 @@ Create a spinner
 ----------------
 
 To create a spinner use
-:cpp:expr:`lv_spinner_create(parent, spin_time, arc_length)`. ``spin time`` sets
-the spin time in milliseconds, ``arc_length`` sets the length of the spinning arc in degrees.
+:cpp:expr:`lv_spinner_create(parent)`.
+
+Using :cpp:expr:`lv_spinner_set_anim_params(spinner, spin_duration, angle)` the duration
+of one revulation and the length of he arc can be customized.
 
 Events
 ******

docs/widgets/table.rst

@@ -79,16 +79,6 @@ Events
 
 -  :cpp:enumerator:`LV_EVENT_VALUE_CHANGED` Sent when a new cell is selected with
    keys.
--  :cpp:enumerator:`LV_EVENT_DRAW_PART_BEGIN` and :cpp:enumerator:`LV_EVENT_DRAW_PART_END` are sent
-   for the following types:
-
-   -  :cpp:enumerator:`LV_TABLE_DRAW_PART_CELL` The individual cells of the table
-
-      -  ``part``: :cpp:enumerator:`LV_PART_ITEMS`
-      -  ``draw_area``: area of the indicator
-      -  ``rect_dsc``
-      -  ``label_dsc``
-      -  ``id``: current row × col count + current column
 
 See the events of the `Base object </widgets/obj>`__ too.
 

docs/widgets/tabview.rst

@@ -8,7 +8,7 @@ The Tab view object can be used to organize content in tabs. The Tab
 view is built from other widgets:
 
 - Main container: `lv_obj </widgets/obj>`__
-- Tab buttons: `lv_btnmatrix </widgets/btnmatrix>`__
+- Tab buttons: an `lv_obj </widgets/obj>`__` with `lv_button </widgets/button>`__ s
 - Container for the tabs: `lv_obj </widgets/obj>`__
 - Content of the tabs: `lv_obj </widgets/obj>`__
 
@@ -22,7 +22,7 @@ Parts and Styles
 ****************
 
 There are no special parts on the Tab view but the ``lv_obj`` and
-``lv_btnmatrix`` widgets are used to create the Tab view.
+``lv_button`` widgets are used to create the Tab view.
 
 Usage
 *****
@@ -30,12 +30,8 @@ Usage
 Create a Tab view
 -----------------
 
-:cpp:expr:`lv_tabview_create(parent, tab_pos, tab_size)` creates a new empty
-Tab view. ``tab_pos`` can be ``LV_DIR_TOP/BOTTOM/LEFT/RIGHT`` to
-position the tab buttons to a side. ``tab_size`` is the height (in case
-of ``LV_DIR_TOP/BOTTOM``) or width (in case of ``LV_DIR_LEFT/RIGHT``)
-tab buttons.
-
+:cpp:expr:`lv_tabview_create(parent)` creates a new empty
+Tab view.
 Add tabs
 --------
 
@@ -58,12 +54,26 @@ To select a new tab you can:
 - Slide horizontally
 - Use :cpp:expr:`lv_tabview_set_active(tabview, id, LV_ANIM_ON)` function
 
+
+Set tab bar position
+--------------------
+
+Using the :cpp:expr:`lv_tabview_set_tab_bar_position(tabview, LV_DIR_LEFT/RIGHT/TOP/BOTTOM)`
+the tab bar can be moved to any sides.
+
+Set tab bra size
+----------------
+
+The size of the tab bar can be adjusted by :spp:expr:`lv_tabview_set_tab_bar_size(tabview, size)`
+In case of vertical arrangement is means the height of the tab bar, and in horizontal
+arrangement it means the width.
+
 Get the parts
 -------------
 
 :cpp:expr:`lv_tabview_get_content(tabview)` returns the container for the tabs,
-:cpp:expr:`lv_tabview_get_tab_btns(tabview)` returns the Tab buttons object
-which is a `Button matrix </widgets/btnmatrix>`__.
+:cpp:expr:`lv_tabview_get_tab_buttons(tabview)` returns the Tab buttons object
+which is a `Button matrix </widgets/buttonmatrix>`__.
 
 Events
 ******

docs/widgets/tileview.rst

@@ -38,8 +38,8 @@ Change tile
 -----------
 
 The Tile view can scroll to a tile with
-:cpp:expr:`lv_obj_set_tile(tileview, tile_obj, LV_ANIM_ON/OFF)` or
-:cpp:expr:`lv_obj_set_tile_id(tileview, col_id, row_id, LV_ANIM_ON/OFF)`
+:cpp:expr:`lv_tileview_set_tile(tileview, tile_obj, LV_ANIM_ON/OFF)` or
+:cpp:expr:`lv_tileview_set_tile_by_index(tileview, col_id, row_id, LV_ANIM_ON/OFF)`
 
 Events
 ******

docs/widgets/win.rst

@@ -16,7 +16,7 @@ documentation for details:
 - Background: `lv_obj </widgets/obj>`__
 - Header on the background: `lv_obj </widgets/obj>`__
 - Title on the header: `lv_label </widgets/label>`__
-- Buttons on the header: `lv_btn </widgets/btn>`__
+- Buttons on the header: `lv_button </widgets/button>`__
 - Content area on the background: `lv_obj </widgets/obj>`__
 
 Usage
@@ -35,8 +35,8 @@ Any number of texts (but typically only one) can be added to the header
 with :cpp:expr:`lv_win_add_title(win, "The title")`.
 
 Control buttons can be added to the window's header with
-:cpp:expr:`lv_win_add_btn(win, icon, btn_width)`. ``icon`` can be any image
-source, and ``btn_width`` is the width of the button.
+:cpp:expr:`lv_win_add_button(win, icon, button_width)`. ``icon`` can be any image
+source, and ``button_width`` is the width of the button.
 
 The title and the buttons will be added in the order the functions are
 called. So adding a button, a text and two other buttons will result in
@@ -56,7 +56,7 @@ Events
 ******
 
 No special events are sent by the windows, however events can be added
-manually to the return value of :cpp:func:`lv_win_add_btn`.
+manually to the return value of :cpp:func:`lv_win_add_button`.
 
 Learn more about :ref:`events`.
 

examples/widgets/btn/index.rst

@@ -1,20 +0,0 @@
-
-Simple Buttons
---------------
-
-.. lv_example:: widgets/btn/lv_example_btn_1
-  :language: c
-
-
-Styling buttons
----------------
-
-.. lv_example:: widgets/btn/lv_example_btn_2
-  :language: c
-
-Gummy button
-------------
-
-.. lv_example:: widgets/btn/lv_example_btn_3
-  :language: c
-

examples/widgets/btnmatrix/index.rst

@@ -1,22 +0,0 @@
-
-Simple Button matrix
---------------------
-
-.. lv_example:: widgets/btnmatrix/lv_example_btnmatrix_1
-  :language: c
-
-
-Custom buttons
---------------
-
-.. lv_example:: widgets/btnmatrix/lv_example_btnmatrix_2
-  :language: c
-
-
-Pagination
-----------
-
-.. lv_example:: widgets/btnmatrix/lv_example_btnmatrix_3
-  :language: c
-
-

examples/widgets/button/index.rst

@@ -0,0 +1,20 @@
+
+Simple Buttons
+--------------
+
+.. lv_example:: widgets/button/lv_example_button_1
+  :language: c
+
+
+Styling buttons
+---------------
+
+.. lv_example:: widgets/button/lv_example_button_2
+  :language: c
+
+Gummy button
+------------
+
+.. lv_example:: widgets/button/lv_example_button_3
+  :language: c
+

examples/widgets/buttonmatrix/index.rst

@@ -0,0 +1,22 @@
+
+Simple Button matrix
+--------------------
+
+.. lv_example:: widgets/buttonmatrix/lv_example_buttonmatrix_1
+  :language: c
+
+
+Custom buttons
+--------------
+
+.. lv_example:: widgets/buttonmatrix/lv_example_buttonmatrix_2
+  :language: c
+
+
+Pagination
+----------
+
+.. lv_example:: widgets/buttonmatrix/lv_example_buttonmatrix_3
+  :language: c
+
+

examples/widgets/image/index.rst

@@ -2,27 +2,27 @@
 Image from variable and symbol
 ------------------------------
 
-.. lv_example:: widgets/img/lv_example_img_1
+.. lv_example:: widgets/image/lv_example_image_1
   :language: c
 
 
 Image recoloring
 ----------------
 
-.. lv_example:: widgets/img/lv_example_img_2
+.. lv_example:: widgets/image/lv_example_image_2
   :language: c
 
 
 Rotate and zoom
 ---------------
 
-.. lv_example:: widgets/img/lv_example_img_3
+.. lv_example:: widgets/image/lv_example_image_3
   :language: c
 
 Image offset and styling
 ------------------------
 
-.. lv_example:: widgets/img/lv_example_img_4
+.. lv_example:: widgets/image/lv_example_image_4
   :language: c
 
 

examples/widgets/tabview/lv_example_tabview_2.c

@@ -7,7 +7,7 @@ void lv_example_tabview_2(void)
     /*Create a Tab view object*/
     lv_obj_t * tabview;
     tabview = lv_tabview_create(lv_screen_active());
-    lv_tabview_set_tab_position(tabview, LV_DIR_LEFT);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_LEFT);
     lv_tabview_set_tab_bar_size(tabview, 80);
 
     lv_obj_set_style_bg_color(tabview, lv_palette_lighten(LV_PALETTE_RED, 2), 0);

src/lv_api_map.h

@@ -211,6 +211,8 @@ static inline void lv_obj_move_background(lv_obj_t * obj)
 #define lv_tabview_set_act                   lv_tabview_set_active
 
 #define lv_tileview_get_tile_act             lv_tileview_get_tile_active
+#define lv_obj_set_tile_id                   lv_obj_set_tile_by_index
+#define lv_obj_set_tile                      lv_obj_set_tile
 
 #define lv_msgbox_get_btns                   lv_msgbox_get_buttons
 

src/widgets/tabview/lv_tabview.c

@@ -149,7 +149,7 @@ void lv_tabview_set_active(lv_obj_t * obj, uint32_t idx, lv_anim_enable_t anim_e
     tabview->tab_cur = idx;
 }
 
-void lv_tabview_set_tab_position(lv_obj_t * obj, lv_dir_t dir)
+void lv_tabview_set_tab_bar_position(lv_obj_t * obj, lv_dir_t dir)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
     lv_tabview_t * tabview = (lv_tabview_t *)obj;
@@ -267,7 +267,7 @@ static void lv_tabview_constructor(const lv_obj_class_t * class_p, lv_obj_t * ob
 
     lv_obj_add_event_cb(cont, cont_scroll_end_event_cb, LV_EVENT_ALL, NULL);
     lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_OFF);
-    lv_tabview_set_tab_position(obj, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(obj, LV_DIR_TOP);
 
     lv_obj_add_flag(cont, LV_OBJ_FLAG_SCROLL_ONE);
     lv_obj_remove_flag(cont, LV_OBJ_FLAG_SCROLL_ON_FOCUS);

src/widgets/tabview/lv_tabview.h

@@ -45,7 +45,7 @@ void lv_tabview_rename_tab(lv_obj_t * obj, uint32_t tab_id, const char * new_nam
 
 void lv_tabview_set_active(lv_obj_t * obj, uint32_t id, lv_anim_enable_t anim_en);
 
-void lv_tabview_set_tab_position(lv_obj_t * obj, lv_dir_t dir);
+void lv_tabview_set_tab_bar_position(lv_obj_t * obj, lv_dir_t dir);
 
 void lv_tabview_set_tab_bar_size(lv_obj_t * obj, int32_t size);
 

src/widgets/tileview/lv_tileview.c

@@ -82,7 +82,7 @@ lv_obj_t * lv_tileview_add_tile(lv_obj_t * tv, uint8_t col_id, uint8_t row_id, l
     return obj;
 }
 
-void lv_obj_set_tile(lv_obj_t * obj, lv_obj_t * tile_obj, lv_anim_enable_t anim_en)
+void lv_tileview_set_tile(lv_obj_t * obj, lv_obj_t * tile_obj, lv_anim_enable_t anim_en)
 {
     int32_t tx = lv_obj_get_x(tile_obj);
     int32_t ty = lv_obj_get_y(tile_obj);
@@ -95,7 +95,7 @@ void lv_obj_set_tile(lv_obj_t * obj, lv_obj_t * tile_obj, lv_anim_enable_t anim_
     lv_obj_scroll_to(obj, tx, ty, anim_en);
 }
 
-void lv_obj_set_tile_id(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim_enable_t anim_en)
+void lv_tileview_set_tile_by_index(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim_enable_t anim_en)
 {
     lv_obj_update_layout(tv);
 
@@ -111,7 +111,7 @@ void lv_obj_set_tile_id(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim
         int32_t x = lv_obj_get_x(tile_obj);
         int32_t y = lv_obj_get_y(tile_obj);
         if(x == tx && y == ty) {
-            lv_obj_set_tile(tv, tile_obj, anim_en);
+            lv_tileview_set_tile(tv, tile_obj, anim_en);
             return;
         }
     }

src/widgets/tileview/lv_tileview.h

@@ -50,8 +50,8 @@ lv_obj_t * lv_tileview_create(lv_obj_t * parent);
 
 lv_obj_t * lv_tileview_add_tile(lv_obj_t * tv, uint8_t col_id, uint8_t row_id, lv_dir_t dir);
 
-void lv_obj_set_tile(lv_obj_t * tv, lv_obj_t * tile_obj, lv_anim_enable_t anim_en);
-void lv_obj_set_tile_id(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim_enable_t anim_en);
+void lv_tileview_set_tile(lv_obj_t * tv, lv_obj_t * tile_obj, lv_anim_enable_t anim_en);
+void lv_tileview_set_tile_by_index(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim_enable_t anim_en);
 
 lv_obj_t * lv_tileview_get_tile_active(lv_obj_t * obj);
 

tests/src/test_cases/widgets/test_tabview.c

@@ -49,7 +49,7 @@ void test_tabview_create_successful_dir_top(void)
 void test_tabview_create_successful_dir_bottom(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_BOTTOM);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_BOTTOM);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     TEST_ASSERT_NOT_NULL(tabview);
@@ -60,7 +60,7 @@ void test_tabview_create_successful_dir_bottom(void)
 void test_tabview_create_successful_dir_left(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_LEFT);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_LEFT);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     TEST_ASSERT_NOT_NULL(tabview);
@@ -71,7 +71,7 @@ void test_tabview_create_successful_dir_left(void)
 void test_tabview_create_successful_dir_right(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_RIGHT);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_RIGHT);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     TEST_ASSERT_NOT_NULL(tabview);
@@ -82,7 +82,7 @@ void test_tabview_create_successful_dir_right(void)
 void test_tabview_add_one_tab_empty(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -93,7 +93,7 @@ void test_tabview_add_one_tab_empty(void)
 void test_tabview_add_one_tab_empty_hor(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_LEFT);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_LEFT);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -104,7 +104,7 @@ void test_tabview_add_one_tab_empty_hor(void)
 void test_tabview_add_one_tab_no_scroll(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -119,7 +119,7 @@ void test_tabview_add_one_tab_no_scroll(void)
 void test_tabview_add_one_tab_with_scroll(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -147,7 +147,7 @@ void test_tabview_add_one_tab_with_scroll(void)
 void test_tabview_add_several_tabs_no_scroll(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -167,7 +167,7 @@ void test_tabview_add_several_tabs_no_scroll(void)
 void test_tabview_rename_tab(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -188,7 +188,7 @@ void test_tabview_rename_tab(void)
 void test_tabview_add_several_tabs_hor(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -235,7 +235,7 @@ void test_tabview_set_act_non_existent(void)
 void test_tabview_tab2_selected_event(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");
@@ -253,7 +253,7 @@ void test_tabview_tab2_selected_event(void)
 void test_tabview_update_on_external_scroll(void)
 {
     tabview = lv_tabview_create(active_screen);
-    lv_tabview_set_tab_position(tabview, LV_DIR_TOP);
+    lv_tabview_set_tab_bar_position(tabview, LV_DIR_TOP);
     lv_tabview_set_tab_bar_size(tabview, 50);
 
     lv_obj_t * tab1 = lv_tabview_add_tab(tabview, "Tab 1");