Files
firmware/src/graphics/niche/InkHUD/Applets/System/Keyboard/KeyboardApplet.h
scobert969 7bbfe99fbe Add on-screen keyboard to InkHUD (#9445)
* Added keyboard option to menu. Shows a keyboard layout but does not type.

* Keyboard types into text box and wraps.

* send FreeText messages from the send submenu

- renamed `KEYBOARD` action to `FREE_TEXT` and moved its menu location
to the send submenu
- opening the FreeText applet from the menu keeps the menu open and
disabled the timeout
- the FreeText applet writes to inkhud->freetext
- the sending a canned message checks inkhud->freetext and if it isn't
empty, sends and clears the inkhud->freetext

* Text scrolls along with input

* handle free text message completion as an event

implements `handleFreeText` and `OnFreeText()` for system applets to
interface with the FreeText Applet

The FreeText Applet generates an `OnFreeText` event when completing a
message which is handled by the first system applet with the
`handleFreeText` flag set to true.

The Menu Applet now handles this event.

* call `onFreeText` whenever the FreeText Applet exits

allows the menu to consistently restart its auto-close timeout

* Add text cursor

* Change UI to remove the header and make text box longer
Keyboard displays captial letters for legibility
Keyboard types captial letters with long press

* center FreeText keys and draw symbolic buttons

Move input field and keyboard drawing to their own functions:
- `drawInputField()`
- `drawKeyboard()`

Store the keys in a 1-dimensional array

Implement a matching array, `keyWidths`, to set key widths relative to
the font size

* Add character limit and counter

* Fix softlock when hitting character limit

* Move text box as its own menu page

* rework FreeTextApplet into KeyboardApplet

- The Keyboard Applet renders an on-screen keyboard at the lower portion
of the screen.
- Calling `inkhud->openKeyboard()` sends all the user applets to the
background and resizes the first system applet with `handleFreeText` set
to True to fit above the on-screen keyboard
- `inkhud->closeKeyboard()` reverses this layout change

* Fix input box rendering and add character limit to menu free text

* remove FREE_TEXT menu page and use the FREE_TEXT menu action solely

* force update when changing the free text message

* reorganize KeyboardApplet

- add comments after each row of `key[]` and `keyWidths[]` to preserve
formatting

- The selected key is now set using the key index directly

- rowWidths are pre-calculated in the KeyboardApplet constructor

- removed `drawKeyboard()` and implemented `drawKeyLabel()`

* implement `Renderer::clearTile()` to clear the region below a tile

* add parameter to forceUpdate() for re-rendering the full screen

setting the `all` parameter to true in `inkhud->forceUpdate()` now
causes the full screen buffer to clear an re-render. This is helpful for
when sending applets to the background and the UI needs a clean canvas.

System Applets can now set the `alwaysRender` flag true which causes it
to re-render on every screen update. This is set to true in the Battery
Icon Applet.

* clean up tile clearing loops

* implement dirty rendering to let applets draw over their previous render

- `Applet::requestUpdate()` now has an optional flag to keep the old
canvas

- If honored, the renderer calls `render(true)` which runs
`onDirtyRender()` instead of `onRender()` for said applet

- The renderer will not call a dirty render if the full screen is
getting re-rendered

* simplify arithmetic in clearTile for better understanding

* combine Applet::onRender() and Applet::onDirtyRender() into Applet::onRender(bool full)

- add new `full` parameter to onRender() in every applet. This parameter
can be ignored by most applets.

- `Applet::requestUpdate()` has an optional flag that requests a full
render by default

* implement tile and partial rendering in KeyboardApplet

* add comment for drawKeyLabel()

* improve clarity of byte operations in clearTile()

* remove typo and commented code

* fix inaccurate comments

* add null check to openKeyboard() and closeKeyboard()

---------

Co-authored-by: zeropt <ferr0fluidmann@gmail.com>
Co-authored-by: HarukiToreda <116696711+HarukiToreda@users.noreply.github.com>
2026-01-30 13:35:10 -05:00

67 lines
1.9 KiB
C++

#ifdef MESHTASTIC_INCLUDE_INKHUD
/*
System Applet to render an on-screeen keyboard
*/
#pragma once
#include "configuration.h"
#include "graphics/niche/InkHUD/InkHUD.h"
#include "graphics/niche/InkHUD/SystemApplet.h"
#include <string>
namespace NicheGraphics::InkHUD
{
class KeyboardApplet : public SystemApplet
{
public:
KeyboardApplet();
void onRender(bool full) override;
void onForeground() override;
void onBackground() override;
void onButtonShortPress() override;
void onButtonLongPress() override;
void onExitShort() override;
void onExitLong() override;
void onNavUp() override;
void onNavDown() override;
void onNavLeft() override;
void onNavRight() override;
static uint16_t getKeyboardHeight(); // used to set the keyboard tile height
private:
void drawKeyLabel(uint16_t left, uint16_t top, uint16_t width, char key, Color color);
static const uint8_t KBD_COLS = 11;
static const uint8_t KBD_ROWS = 4;
const char keys[KBD_COLS * KBD_ROWS] = {
'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '\b', // row 0
'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '\n', // row 1
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', '!', ' ', // row 2
'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '?', '\x1b' // row 3
};
// This array represents the widths of each key in points
// 16 pt = line height of the text
const uint16_t keyWidths[KBD_COLS * KBD_ROWS] = {
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 24, // row 0
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 24, // row 1
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 24, // row 2
16, 16, 16, 16, 16, 16, 16, 10, 10, 12, 40 // row 3
};
uint16_t rowWidths[KBD_ROWS];
uint8_t selectedKey = 0; // selected key index
uint8_t prevSelectedKey = 0;
};
} // namespace NicheGraphics::InkHUD
#endif