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Better Classic UI touch resolution (#20004)

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This commit is contained in:
Victor Oliveira
2020-11-03 20:25:33 -03:00
committed by GitHub
parent 0be276482e
commit e9053654a7
8 changed files with 59 additions and 147 deletions
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64
Marlin/src/lcd/touch/touch_buttons.cpp
View File

@ -29,45 +29,13 @@ XPT2046 touchIO;
#include "../../lcd/marlinui.h" // For EN_C bit mask
/**
* Draw and Touch processing
*
* LCD_PIXEL_WIDTH/HEIGHT (128x64) is the (emulated DOGM) Pixel Drawing resolution.
* TOUCH_SENSOR_WIDTH/HEIGHT (320x240) is the Touch Area resolution.
* TFT_WIDTH/HEIGHT (320x240 or 480x320) is the Actual (FSMC) Display resolution.
*
* - All native (u8g) drawing is done in LCD_PIXEL_* (128x64)
* - The DOGM pixels are is upscaled 2-3x (as needed) for display.
* - Touch coordinates use TOUCH_SENSOR_* resolution and are converted to
* click and scroll-wheel events (emulating of a common DOGM display).
*
* TOUCH_SCREEN resolution exists to fit our calibration values. The original touch code was made
* and originally calibrated for 320x240. If you decide to change the resolution of the touch code,
* new calibration values will be needed.
*
* The Marlin menus are drawn scaled in the upper region of the screen. The bottom region (in a
* fixed location in TOUCH_SCREEN* coordinate space) is used for 4 general-purpose buttons to
* navigate and select menu items. Both regions are touchable.
*
* The Marlin screen touchable area starts at TFT_PIXEL_OFFSET_X/Y (translated to SCREEN_PCT_LEFT/TOP)
* and spans LCD_PIXEL_WIDTH/HEIGHT (scaled to SCREEN_PCT_WIDTH/HEIGHT).
*/
#define DOGM_AREA_LEFT TFT_PIXEL_OFFSET_X
#define DOGM_AREA_TOP TFT_PIXEL_OFFSET_Y
#define DOGM_AREA_WIDTH (GRAPHICAL_TFT_UPSCALE) * (LCD_PIXEL_WIDTH)
#define DOGM_AREA_HEIGHT (GRAPHICAL_TFT_UPSCALE) * (LCD_PIXEL_HEIGHT)
// Touch sensor resolution independent of display resolution
#define TOUCH_SENSOR_WIDTH 320
#define TOUCH_SENSOR_HEIGHT 240
#define SCREEN_PCT_WIDE(X) ((X) * (TOUCH_SENSOR_WIDTH) / (TFT_WIDTH))
#define SCREEN_PCT_HIGH(Y) ((Y) * (TOUCH_SENSOR_HEIGHT) / (TFT_HEIGHT))
#define SCREEN_PCT_LEFT SCREEN_PCT_WIDE(TFT_PIXEL_OFFSET_X)
#define SCREEN_PCT_TOP SCREEN_PCT_HIGH(TFT_PIXEL_OFFSET_Y)
#define SCREEN_PCT_WIDTH SCREEN_PCT_WIDE((GRAPHICAL_TFT_UPSCALE) * (LCD_PIXEL_WIDTH))
#define SCREEN_PCT_HEIGHT SCREEN_PCT_HIGH((GRAPHICAL_TFT_UPSCALE) * (LCD_PIXEL_HEIGHT))
// Coordinates in terms of 240-unit-tall touch area
#define BUTTON_AREA_TOP 175
#define BUTTON_AREA_BOT 234
#define BUTTON_AREA_TOP BUTTON_Y_LO
#define BUTTON_AREA_BOT BUTTON_Y_HI
TouchButtons touch;
@ -83,25 +51,25 @@ uint8_t TouchButtons::read_buttons() {
y = uint16_t((uint32_t(y) * XPT2046_Y_CALIBRATION) >> 16) + XPT2046_Y_OFFSET;
#if (TFT_ROTATION & TFT_ROTATE_180)
x = TOUCH_SENSOR_WIDTH - x;
y = TOUCH_SENSOR_HEIGHT - y;
x = TFT_WIDTH - x;
y = TFT_HEIGHT - y;
#endif
// Touch within the button area simulates an encoder button
if (y > BUTTON_AREA_TOP && y < BUTTON_AREA_BOT)
return WITHIN(x, 14, 77) ? EN_D
: WITHIN(x, 90, 153) ? EN_A
: WITHIN(x, 166, 229) ? EN_B
: WITHIN(x, 242, 305) ? EN_C
return WITHIN(x, BUTTOND_X_LO, BUTTOND_X_HI) ? EN_D
: WITHIN(x, BUTTONA_X_LO, BUTTONA_X_HI) ? EN_A
: WITHIN(x, BUTTONB_X_LO, BUTTONB_X_HI) ? EN_B
: WITHIN(x, BUTTONC_X_LO, BUTTONC_X_HI) ? EN_C
: 0;
if ( !WITHIN(x, SCREEN_PCT_LEFT, SCREEN_PCT_LEFT + SCREEN_PCT_WIDTH)
|| !WITHIN(y, SCREEN_PCT_TOP, SCREEN_PCT_TOP + SCREEN_PCT_HEIGHT)
if ( !WITHIN(x, DOGM_AREA_LEFT, DOGM_AREA_LEFT + DOGM_AREA_WIDTH)
|| !WITHIN(y, DOGM_AREA_TOP, DOGM_AREA_TOP + DOGM_AREA_HEIGHT)
) return 0;
// Column and row above BUTTON_AREA_TOP
int8_t col = (x - (SCREEN_PCT_LEFT)) * (LCD_WIDTH) / (SCREEN_PCT_WIDTH),
row = (y - (SCREEN_PCT_TOP)) * (LCD_HEIGHT) / (SCREEN_PCT_HEIGHT);
int8_t col = (x - (DOGM_AREA_LEFT)) * (LCD_WIDTH) / (DOGM_AREA_WIDTH),
row = (y - (DOGM_AREA_TOP)) * (LCD_HEIGHT) / (DOGM_AREA_HEIGHT);
// Send the touch to the UI (which will simulate the encoder wheel)
MarlinUI::screen_click(row, col, x, y);

30
Marlin/src/lcd/touch/touch_buttons.h
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@ -20,6 +20,36 @@
#include <stdint.h>
#include "../../inc/MarlinConfig.h"
#include "../scaled_tft.h"
#define UPSCALE0(M) ((M) * (GRAPHICAL_TFT_UPSCALE))
#define UPSCALE(A,M) (UPSCALE0(M) + (A))
#define BUTTON_DRAW_WIDTH 32
#define BUTTON_DRAW_HEIGHT 20
#define BUTTON_WIDTH UPSCALE0(BUTTON_DRAW_WIDTH)
#define BUTTON_HEIGHT UPSCALE0(BUTTON_DRAW_HEIGHT)
// calc the space between buttons
#define BUTTON_SPACING (((TFT_WIDTH) - (BUTTON_WIDTH * 4)) / 5)
#define BUTTOND_X_LO BUTTON_SPACING
#define BUTTOND_X_HI BUTTOND_X_LO + BUTTON_WIDTH - 1
#define BUTTONA_X_LO BUTTOND_X_HI + BUTTON_SPACING
#define BUTTONA_X_HI BUTTONA_X_LO + BUTTON_WIDTH - 1
#define BUTTONB_X_LO BUTTONA_X_HI + BUTTON_SPACING
#define BUTTONB_X_HI BUTTONB_X_LO + BUTTON_WIDTH - 1
#define BUTTONC_X_LO BUTTONB_X_HI + BUTTON_SPACING
#define BUTTONC_X_HI BUTTONC_X_LO + BUTTON_WIDTH - 1
#define BUTTON_Y_HI (TFT_HEIGHT) - (BUTTON_SPACING / 2)
#define BUTTON_Y_LO BUTTON_Y_HI - BUTTON_HEIGHT
class TouchButtons {
public:
static void init();