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chore(docs): fix a few typos (#4170)
Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
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@ -91,7 +91,7 @@ Our goal is to provide financial compensation for people who do the most for LVG
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We use [GitHub Sponsors](https://github.com/sponsors/lvgl) where you can easily send one time or recurring donations. You can also see all of our expenses in a transparent way.
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**How to get paid for your contribution?**<br>
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If someone implements or fixes an issue labeled as [Sponsored](https://github.com/lvgl/lvgl/labels/Sponsored) he or she will get a payment for that work. We estimate the required time, complexity and importance of the issue and set a price accordingly. To jump in just comment on a [Sponsored](https://github.com/lvgl/lvgl/labels/Sponsored) issue saying "Hi, I'd like to deal with it. This is how I'm planning to fix/implement it...". A work is considered ready when it's approved and merged by a maintainer. After that you can submit and expense at [opencollective.com](https://opencollective.com/lvgl) and you will receive teh payment in a few days.
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If someone implements or fixes an issue labeled as [Sponsored](https://github.com/lvgl/lvgl/labels/Sponsored) he or she will get a payment for that work. We estimate the required time, complexity and importance of the issue and set a price accordingly. To jump in just comment on a [Sponsored](https://github.com/lvgl/lvgl/labels/Sponsored) issue saying "Hi, I'd like to deal with it. This is how I'm planning to fix/implement it...". A work is considered ready when it's approved and merged by a maintainer. After that you can submit and expense at [opencollective.com](https://opencollective.com/lvgl) and you will receive the payment in a few days.
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**Organizations supporting LVGL**<br>
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[![Sponsors of LVGL](https://opencollective.com/lvgl/organizations.svg?width=600)](https://opencollective.com/lvgl)
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@ -122,7 +122,7 @@ pre-commit
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----------
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`pre-commit <https://pre-commit.com/>`__ is a multi-language package
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manager for pre-commit hooks. See the `instalation
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manager for pre-commit hooks. See the `installation
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guide <https://pre-commit.com/#installation>`__ to get pre-commit python
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package installed into your development machine.
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@ -373,7 +373,7 @@ Other features which are (still) not on the road map are listed in the
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`Feature request <https://forum.lvgl.io/c/feature-request/9>`__ category
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of the Forum.
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When adding a new features the followings also needs to be updated:
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When adding a new features the following also needs to be updated:
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- Update `lv_conf_template.h <https://github.com/lvgl/lvgl/blob/master/lv_conf_template.h>`__
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- Add description in the `docs <https://github.com/lvgl/lvgl/tree/master/docs>`__
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@ -21,7 +21,7 @@
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- [x] New driver architecture #2720
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- [x] `draw_ctx->buffer_convert`? See [here](https://github.com/lvgl/lvgl/issues/3379#issuecomment-1147954592). Also remove 16 SWAPPED color format? See [here](https://github.com/lvgl/lvgl/issues/3379#issuecomment-1140886258).
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- [ ] `lv_img_set_src()` use "type-aware" parameter and rework image decoders. See [here](https://github.com/lvgl/lvgl/tree/arch/img-decode-rework)
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- [ ] Reconsider masks. There should be a generic high level mask API whic is independent of the drawing engine. [#4059](https://github.com/lvgl/lvgl/issues/4059)
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- [ ] Reconsider masks. There should be a generic high level mask API which is independent of the drawing engine. [#4059](https://github.com/lvgl/lvgl/issues/4059)
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- [x] `get_glyph_bitmap` should return an a8 bitmap that can be blended immediately.
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- [ ] Reconsider how themes should work. See [here](https://github.com/lvgl/lvgl/pull/3390#pullrequestreview-990710921).
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- [ ] Make LVGL render independent areas in parallel. [#4016](https://github.com/lvgl/lvgl/issues/4016)
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@ -45,7 +45,7 @@
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- [ ] Disabled widgets should absorb indev actions without sending events. [#3860](https://github.com/lvgl/lvgl/issues/3860)
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### Drawing and rendering
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- [ ] Automatically recalculate the layout if a coordinte is get with `lv_obj_get_width/height/x/y/etc`
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- [ ] Automatically recalculate the layout if a coordinate is get with `lv_obj_get_width/height/x/y/etc`
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### Animations
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- [ ] Use `anim` events to replace many callbacks with one
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@ -55,7 +55,7 @@
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## Planned in general
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### CI
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- [ ] Plaform independent bechmarking #3443
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- [ ] Platform independent benchmarking #3443
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- [ ] Run static analyzer
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- [ ] Release script
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- [ ] Unit test for all widgets #2337
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@ -91,7 +91,7 @@
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- [ ] Named grid cells to allow updating layouts without touching the children (like CSS `grid-template-areas`)
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- [ ] Scene support. See [this comment](https://github.com/lvgl/lvgl/issues/2790#issuecomment-965100911)
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- [ ] Circle layout. #2871
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- [ ] Variable binding. I.e create properties which can be bound to objects and those obejcts are notified on value change. Maybe based on `lv_msg`?
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- [ ] Variable binding. I.e create properties which can be bound to objects and those objects are notified on value change. Maybe based on `lv_msg`?
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- [ ] Consider [stagger animations](https://greensock.com/docs/v3/Staggers).
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## Ideas
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@ -10,7 +10,7 @@ providing a familiar React-like experience to users.
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**Code**
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**Code Runing on Real Device**
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**Code Running on Real Device**
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Table of Contents
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-----------------
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@ -29,7 +29,7 @@ Features
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--------
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- Support all lvgl built-in components
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- Fully suport lvgl flex and grid style
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- Fully support lvgl flex and grid style
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- support most lvgl style,just write like html5 css
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- support dynamic load image
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- Fully support lvgl animation
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@ -194,7 +194,7 @@ follow some coding conventions:
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- Argument must be named in H files too.
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- Do not ``malloc`` into a static or global variables. Instead declare the variable in :c:macro:`LV_ITERATE_ROOTS`
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list in ``lv_gc.h`` and mark the variable with :cpp:expr:`GC_ROOT(variable)` when it's used. **See** :ref:`memory_management`
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- To register and use callbacks one of the followings needs to be followed. **See** :ref:`callbacks`
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- To register and use callbacks one of the following needs to be followed. **See** :ref:`callbacks`
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- Pass a pointer to a ``struct`` as the first argument of both the registration function and the callback. That
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``struct`` must contain ``void * user_data`` field.
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@ -262,7 +262,7 @@ next to the function pointer when registering a callback, and access that object
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- The basic idea is that we have ``void * user_data`` field that is used automatically by the Micropython Binding
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to save the *Micropython callable object* for a callback. This field must be provided when registering the function
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pointer, and provided to the callback function itself.
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- Although called "user_data", the user is not expectd to read/write that field. Instead, the Micropython glue code uses
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- Although called "user_data", the user is not expected to read/write that field. Instead, the Micropython glue code uses
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``user_data`` to automatically keep track of the Micropython callable object. The glue code updates it when the callback
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is registered, and uses it when the callback is called in order to invoke a call to the original callable object.
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@ -279,7 +279,7 @@ There are a few options for defining a callback in LVGL C API:
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- A parameter called ``void * user_data`` is provided to the registration function as the **last** argument
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- The callback itself recieves ``void *`` as the **last** argument
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- The callback itself receives ``void *`` as the **last** argument
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- Option 3: both callback and ``user_data`` are struct fields
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@ -296,12 +296,12 @@ Examples
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- :cpp:type:`lv_anim_t` contains ``user_data`` field. :cpp:func:`lv_anim_set_path_cb`
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registers `path_cb` callback. Both ``lv_anim_set_path_cb`` and :cpp:type:`lv_anim_path_cb_t`
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recieve :cpp:type:`lv_anim_t` as their first argument
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receive :cpp:type:`lv_anim_t` as their first argument
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- ``path_cb`` field can also be assigned directly in the Python code because it's a member
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of :cpp:type:`lv_anim_t` which contains ``user_data`` field, and :cpp:type:`lv_anim_path_cb_t`
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recieve :cpp:type:`lv_anim_t` as its first argument.
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- :cpp:func:`lv_imgfont_create` registers ``path_cb`` and recieves ``user_data`` as the last
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argument. The callback :cpp:func:`lv_imgfont_get_path_cb_t` also receieves the ``user_data`` as the last argument.
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receive :cpp:type:`lv_anim_t` as its first argument.
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- :cpp:func:`lv_imgfont_create` registers ``path_cb`` and receives ``user_data`` as the last
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argument. The callback :cpp:func:`lv_imgfont_get_path_cb_t` also receives the ``user_data`` as the last argument.
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.. _more-information-1:
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@ -184,7 +184,7 @@ automatically scan main.py and bind the ``pika_lvgl`` module
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PikaStdLib==v1.10.0
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PikaStdDevice==v1.10.0
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(pikascript) pika compiler:
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scaning main.py...
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scanning main.py...
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binding pika_lvgl.pyi...
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The precompiler is written in Rust, runs on windows and linux, and is
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@ -70,7 +70,7 @@ Besides :c:macro:`LV_CONF_PATH` there are few additional CMake options available
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Include paths options
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---------------------
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- :c:macro:`LV_LVGL_H_INCLUDE_SIMPLE`: which specifies whether to ``#include "lvgl.h"`` absolut or relative
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- :c:macro:`LV_LVGL_H_INCLUDE_SIMPLE`: which specifies whether to ``#include "lvgl.h"`` absolute or relative
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============ ==============
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ON (default) OFF
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@ -78,7 +78,7 @@ Include paths options
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"lvgl.h" "../../lvgl.h"
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============ ==============
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- :c:macro:`LV_CONF_INCLUDE_SIMPLE`: which specifies whether to ``#include "lv_conf.h"`` and ``"lv_drv_conf.h"`` absolut or relative
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- :c:macro:`LV_CONF_INCLUDE_SIMPLE`: which specifies whether to ``#include "lv_conf.h"`` and ``"lv_drv_conf.h"`` absolute or relative
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=============== =====================
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ON (default) OFF
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@ -169,7 +169,7 @@ lottie size is as intended - Limit total number of frames, the longer
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the lottie animation is, the more memory it will consume for rendering
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(rlottie consumes IRAM for rendering) - Build the lottie animation for
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the intended frame rate - default lottie is 60fps, embedded LCDs likely
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wont go above 30fps
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won't go above 30fps
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IDF Setup
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~~~~~~~~~
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@ -194,7 +194,7 @@ Rlottie patch file
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Rlottie relies on a dynamic linking for an image loader lib. This needs
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to be disabled as the IDF doesn't play nice with dynamic linking.
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A patch file is available in lvgl uner:
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A patch file is available in lvgl under:
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``/env_support/esp/rlottie/0001-changes-to-compile-with-esp-idf.patch``
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Apply the patch file to your rlottie submodule.
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@ -223,7 +223,7 @@ guarantee that every animation will work.
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Additional Rlottie considerations in ESP-IDF
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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While unecessary, removing the ``rlottie/rlottie/example`` folder can remove
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While unnecessary, removing the ``rlottie/rlottie/example`` folder can remove
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many un-needed files for this embedded LVGL application
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From here, you can use the relevant LVGL lv_rlottie functions to create
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@ -10,7 +10,7 @@ Overview
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--------
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- Supports both normal JPG and the custom SJPG formats.
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- Decoding normal JPG consumes RAM with the size fo the whole
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- Decoding normal JPG consumes RAM with the size of the whole
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uncompressed image (recommended only for devices with more RAM)
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- SJPG is a custom format based on "normal" JPG and specially made for
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LVGL.
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@ -24,7 +24,7 @@ Overview
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- By default the sjpg image cache will be image width \* 2 \* 16 bytes
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(can be modified)
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- Currently only 16 bit image format is supported (TODO)
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- Only the required partion of the JPG and SJPG images are decoded,
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- Only the required portion of the JPG and SJPG images are decoded,
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therefore they can't be zoomed or rotated.
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Usage
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@ -65,7 +65,7 @@ The callback should look like this:
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...do something...
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}
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From :c:struct:`lv_msg_t` the followings can be used to get some data:
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From :c:struct:`lv_msg_t` the following can be used to get some data:
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- :c:expr:`lv_msg_get_id(m)`
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- :c:expr:`lv_msg_get_payload(m)`
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@ -227,7 +227,7 @@ to combine scroll event and store the scroll top position.
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lv_obj_t* container = lv_obj_create(NULL);
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lv_obj_add_event(container, store_scroll_value_event_cb, LV_EVENT_SCROLL, NULL);
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Scrool coordinates can be retrieve from differents axes with these
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Scroll coordinates can be retrieved from different axes with these
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functions:
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- ``lv_obj_get_scroll_x(obj)`` Get the ``x`` coordinate of object
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@ -262,7 +262,7 @@ an object. Here is an example to see how to handle the event:
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if(event_code == LV_EVENT_GET_SELF_SIZE) {
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lv_point_t * p = lv_event_get_param(e);
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//If x or y < 0 then it doesn't neesd to be calculated now
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//If x or y < 0 then it doesn't need to be calculated now
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if(p->x >= 0) {
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p->x = 200; //Set or calculate the self width
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}
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@ -2347,7 +2347,7 @@ Ext. draw No
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border_width
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~~~~~~~~~~~~
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Set hte width of the border. Only pixel values can be used.
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Set the width of the border. Only pixel values can be used.
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.. raw:: html
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@ -3456,7 +3456,7 @@ Ext. draw No
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line_color
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~~~~~~~~~~
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Set the color fo the lines.
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Set the color of the lines.
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.. raw:: html
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@ -55,14 +55,14 @@ Draw buffers
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The draw buffers can be set with
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:cpp:expr:`lv_disp_set_draw_buffers(disp, buf1, buf2, buf_size_px, render_mode)`
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- ``buf1`` a bufer where LVGL can render
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- ``buf1`` a buffer where LVGL can render
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- ``buf2`` a second optional buffer (see more details below)
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- ``buf_size_byte`` size of the buffer(s) in bytes
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- ``render_mode``
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- :cpp:enumerator:`LV_DISP_RENDER_MODE_PARTIAL` Use the buffer(s) to render the
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screen is smaller parts. This way the buffers can be smaller then
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the display to save RAM. At least 1/10 sceen size buffer(s) are
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the display to save RAM. At least 1/10 screen size buffer(s) are
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recommended. In ``flush_cb`` the rendered images needs to be
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copied to the given area of the display.
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- :cpp:enumerator:`LV_DISP_RENDER_MODE_DIRECT` The buffer(s) has to be screen
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@ -115,7 +115,7 @@ To set the resolution of the display after creation use
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It's not mandatory to use the whole display for LVGL, however in some
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cases the physical resolution is important. For example the touchpad
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still sees the whole resolution and the values needs to be converted to
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the active LVGL display area. So the physical resoltution and the offset
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the active LVGL display area. So the physical resolution and the offset
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of the active area can be set with
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:cpp:expr:`lv_disp_set_physical_res(disp, hor_res, ver_res)` and
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:cpp:expr:`lv_disp_set_offset(disp, x, y)`
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@ -129,7 +129,7 @@ select whether you'd like software rotation or hardware rotation.
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The orientation of the display can be changed with
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``lv_disp_set_rotation(disp, LV_DISP_ROTATION_0/90/180/270, true/false)``.
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LVGL will swap the horizontal and vertical resolutions internally
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according to the set degree. IF the last paramter is ``true`` LVGL will
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according to the set degree. If the last parameter is ``true`` LVGL will
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rotate the rendered image. If it's ``false`` the display driver should
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rotate the rendered image.
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@ -138,7 +138,7 @@ Color format
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Set the color format of the display. The default is
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:cpp:enumerator:`LV_COLOR_FORMAT_NATIVE` which means LVGL render with the follow
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formats dpeneding on :c:macro:`LV_COLOR_DEPTH`:
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formats depending on :c:macro:`LV_COLOR_DEPTH`:
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- :c:macro:`LV_COLOR_DEPTH` ``32``: XRGB8888 (4 bytes/pixel)
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- :c:macro:`LV_COLOR_DEPTH` ``24``: RGB888 (3 bytes/pixel)
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@ -152,7 +152,7 @@ values:
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- :cpp:enumerator:`LV_COLOR_FORMAT_NATIVE_ALPHA`: Append an alpha byte to the native format resulting
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in A8L8, ARGB8565, ARGB8888 formats.
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- :cpp:enumerator:`LV_COLOR_FORMAT_NATIVE_REVERSE`: Reverse the byte order of the native format. Useful if the
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rendered image is sent to the disply via SPI and
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rendered image is sent to the display via SPI and
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the display needs the bytes in the opposite order.
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- :cpp:enumerator:`LV_COLOR_FORMAT_L8`: Lightness only on 8 bit
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- :cpp:enumerator:`LV_COLOR_FORMAT_A8`: Alpha only on 8 bit
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@ -165,20 +165,20 @@ values:
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- :cpp:enumerator:`LV_COLOR_FORMAT_ARGB4444`: 4 bit for each channel
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- :cpp:enumerator:`LV_COLOR_FORMAT_RGB888`: 8 bit for each color channel with out alpha channel
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- :cpp:enumerator:`LV_COLOR_FORMAT_ARGB8888`: 8 bit for each channel
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- :cpp:enumerator:`LV_COLOR_FORMAT_XRGB8888`: 8 bit for each color channel and 8 bit placholder for the alpha cannel
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- :cpp:enumerator:`LV_COLOR_FORMAT_XRGB8888`: 8 bit for each color channel and 8 bit placeholder for the alpha channel
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If the color fotmat is set to non-native ``draw_ctx->buffer_convert``
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If the color format is set to non-native ``draw_ctx->buffer_convert``
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function will be called before calling ``flush_cb`` to convert the
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native color format to the desired, therfore rendering in non-native
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formats has a negative effect on peroformance. Learn more about
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native color format to the desired, therefore rendering in non-native
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formats has a negative effect on performance. Learn more about
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``draw_ctx`` `here </porting/gpu>`__.
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It's very important that draw buffer(s) should be large enough for both
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the native format and the target color format. For example if
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``LV_COLOR_DEPTH == 16`` and :cpp:enumerator:`LV_COLOR_FORMAT_XRGB8888` is selected
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LVGL will choosoe the larger to figure out how many pixel can be
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LVGL will choose the larger to figure out how many pixel can be
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rendered at once. Therefore with :cpp:enumerator:`LV_DISP_RENDER_MODE_FULL` and the
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larger pixel size needs to choosen.
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larger pixel size needs to be chosen.
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:cpp:enumerator:`LV_DISP_RENDER_MODE_DIRECT` supports only the
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:cpp:enumerator:`LV_COLOR_FORMAT_NATIVE` format.
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@ -203,9 +203,9 @@ an event handler to a display. The following events are sent:
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- :cpp:enumerator:`LV_DISP_EVENT_INVALIDATE_AREA` An area is invalidated (marked for redraw).
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:cpp:expr:`lv_event_get_param(e)` returns a pointer to an :cpp:struct:`lv_area_t`
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varaible with the coordinates of the area to be invalidated. The ara can
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be freely modified is needed to adopt it the specialrequirement of the
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display. Usually needed with monoschrome displays to invalidate Nx8
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variable with the coordinates of the area to be invalidated. The area can
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be freely modified is needed to adopt it the special requirement of the
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display. Usually needed with monochrome displays to invalidate Nx8
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lines at once.
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- :cpp:enumerator:`LV_DISP_EVENT_RENDER_START`: Called when rendering starts.
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- :cpp:enumerator:`LV_DISP_EVENT_RENDER_READY`: Called when rendering is ready
|
||||
|
@ -107,7 +107,7 @@ Events
|
||||
|
||||
- ``part``: :cpp:enumerator:`LV_PART_ITEMS`
|
||||
- ``id``:index of the button being drawn
|
||||
- ``draw_area``: the area of teh button
|
||||
- ``draw_area``: the area of the button
|
||||
- ``rect_dsc``
|
||||
|
||||
See the events of the `Base object </widgets/obj>`__ too.
|
||||
|
@ -66,7 +66,7 @@ color format of the buffer and the canvas need to match.
|
||||
|
||||
To draw something to the canvas use:
|
||||
|
||||
- :cpp:expr:`lv_canvas_draw_rect(canvas, x, y, width, heigth, &draw_dsc)`
|
||||
- :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)`
|
||||
|
@ -67,7 +67,7 @@ an array for the data points. ``axis`` can have the following values:
|
||||
- :cpp:enumerator:`LV_CHART_AXIS_PRIMARY_X` Bottom axis
|
||||
- :cpp:enumerator:`LV_CHART_AXIS_SECONDARY_X` Top axis
|
||||
|
||||
``axis`` tells which axis's range should be used te scale the values.
|
||||
``axis`` tells which axis's range should be used to scale the values.
|
||||
|
||||
:cpp:expr:`lv_chart_set_ext_y_array(chart, ser, value_array)` makes the chart
|
||||
use an external array for the given series. ``value_array`` should look
|
||||
|
@ -71,8 +71,8 @@ creating new maps a ctrls.
|
||||
Keep in mind that using following keywords will have the same effect as
|
||||
with the original map:
|
||||
|
||||
- :c:macro:`LV_SYMBOL_OK` Send ``LV_EVENT_RADY`` to the assigend Text area.
|
||||
- :c:macro:`LV_SYMBOL_CLOSE` or :c:macro:`LV_SYMBOL_KEYBOARD` Send :cpp:enumerator:`LV_EVENT_CANCEL` to the assigend Text area.
|
||||
- :c:macro:`LV_SYMBOL_OK` Send ``LV_EVENT_RADY`` to the assigned Text area.
|
||||
- :c:macro:`LV_SYMBOL_CLOSE` or :c:macro:`LV_SYMBOL_KEYBOARD` Send :cpp:enumerator:`LV_EVENT_CANCEL` to the assigned Text area.
|
||||
- :c:macro:`LV_SYMBOL_BACKSPACE` Delete on the left.
|
||||
- :c:macro:`LV_SYMBOL_LEFT` Move the cursor left.
|
||||
- :c:macro:`LV_SYMBOL_RIGHT` Move the cursor right.
|
||||
|
@ -81,7 +81,7 @@ To get a specific child of a parent use :cpp:expr:`lv_obj_get_child(parent, idx)
|
||||
- ``1`` get the child created second
|
||||
- ``-1`` get the child created last
|
||||
|
||||
The children can be iterated lke this:
|
||||
The children can be iterated like this:
|
||||
|
||||
.. code:: c
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user