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Code Issues Releases Wiki Activity

Add qr code support for displays (#2952)

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Co-authored-by: Oxan van Leeuwen <oxan@oxanvanleeuwen.nl>
This commit is contained in:
Wouter van der Wal
2022-01-26 10:20:45 +01:00
committed by GitHub
parent ef832becf1
commit a718ac7ee0
10 changed files with 167 additions and 4 deletions
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6
esphome/components/display/display_buffer.cpp
View File

@@ -252,6 +252,12 @@ void DisplayBuffer::legend(int x, int y, graph::Graph *graph, Color color_on) {
}
#endif // USE_GRAPH
#ifdef USE_QR_CODE
void DisplayBuffer::qr_code(int x, int y, qr_code::QrCode *qr_code, Color color_on, int scale) {
qr_code->draw(this, x, y, color_on, scale);
}
#endif // USE_QR_CODE
void DisplayBuffer::get_text_bounds(int x, int y, const char *text, Font *font, TextAlign align, int *x1, int *y1,
int *width, int *height) {
int x_offset, baseline;

15
esphome/components/display/display_buffer.h
View File

@@ -14,6 +14,10 @@
#include "esphome/components/graph/graph.h"
#endif
#ifdef USE_QR_CODE
#include "esphome/components/qr_code/qr_code.h"
#endif
namespace esphome {
namespace display {
@@ -307,6 +311,17 @@ class DisplayBuffer {
void legend(int x, int y, graph::Graph *graph, Color color_on = COLOR_ON);
#endif // USE_GRAPH
#ifdef USE_QR_CODE
/** Draw the `qr_code` with the top-left corner at [x,y] to the screen.
*
* @param x The x coordinate of the upper left corner.
* @param y The y coordinate of the upper left corner.
* @param qr_code The qr_code to draw
* @param color_on The color to replace in binary images for the on bits.
*/
void qr_code(int x, int y, qr_code::QrCode *qr_code, Color color_on = COLOR_ON, int scale = 1);
#endif
/** Get the text bounds of the given string.
*
* @param x The x coordinate to place the string at, can be 0 if only interested in dimensions.