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display: add BaseFont and introduce Font::draw methods (#4963)

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This commit is contained in:
Kamil Trzciński
2023-06-19 01:04:19 +02:00
committed by GitHub
parent 5a8e93ed0a
commit 8c9d63f48f
7 changed files with 106 additions and 100 deletions
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esphome/components/display/display_buffer.cpp
+17 -60
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@@ -7,10 +7,6 @@
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
#include "animation.h"
#include "image.h"
#include "font.h"
namespace esphome {
namespace display {
@@ -256,54 +252,14 @@ void DisplayBuffer::filled_circle(int center_x, int center_y, int radius, Color
} while (dx <= 0);
}
void DisplayBuffer::print(int x, int y, Font *font, Color color, TextAlign align, const char *text) {
void DisplayBuffer::print(int x, int y, BaseFont *font, Color color, TextAlign align, const char *text) {
int x_start, y_start;
int width, height;
this->get_text_bounds(x, y, text, font, align, &x_start, &y_start, &width, &height);
int i = 0;
int x_at = x_start;
while (text[i] != '\0') {
int match_length;
int glyph_n = font->match_next_glyph(text + i, &match_length);
if (glyph_n < 0) {
// Unknown char, skip
ESP_LOGW(TAG, "Encountered character without representation in font: '%c'", text[i]);
if (!font->get_glyphs().empty()) {
uint8_t glyph_width = font->get_glyphs()[0].glyph_data_->width;
for (int glyph_x = 0; glyph_x < glyph_width; glyph_x++) {
for (int glyph_y = 0; glyph_y < height; glyph_y++)
this->draw_pixel_at(glyph_x + x_at, glyph_y + y_start, color);
}
x_at += glyph_width;
}
i++;
continue;
}
const Glyph &glyph = font->get_glyphs()[glyph_n];
int scan_x1, scan_y1, scan_width, scan_height;
glyph.scan_area(&scan_x1, &scan_y1, &scan_width, &scan_height);
{
const int glyph_x_max = scan_x1 + scan_width;
const int glyph_y_max = scan_y1 + scan_height;
for (int glyph_x = scan_x1; glyph_x < glyph_x_max; glyph_x++) {
for (int glyph_y = scan_y1; glyph_y < glyph_y_max; glyph_y++) {
if (glyph.get_pixel(glyph_x, glyph_y)) {
this->draw_pixel_at(glyph_x + x_at, glyph_y + y_start, color);
}
}
}
}
x_at += glyph.glyph_data_->width + glyph.glyph_data_->offset_x;
i += match_length;
}
font->print(x_start, y_start, this, color, text);
}
void DisplayBuffer::vprintf_(int x, int y, Font *font, Color color, TextAlign align, const char *format, va_list arg) {
void DisplayBuffer::vprintf_(int x, int y, BaseFont *font, Color color, TextAlign align, const char *format,
va_list arg) {
char buffer[256];
int ret = vsnprintf(buffer, sizeof(buffer), format, arg);
if (ret > 0)
@@ -358,7 +314,7 @@ void DisplayBuffer::qr_code(int x, int y, qr_code::QrCode *qr_code, Color color_
}
#endif // USE_QR_CODE
void DisplayBuffer::get_text_bounds(int x, int y, const char *text, Font *font, TextAlign align, int *x1, int *y1,
void DisplayBuffer::get_text_bounds(int x, int y, const char *text, BaseFont *font, TextAlign align, int *x1, int *y1,
int *width, int *height) {
int x_offset, baseline;
font->measure(text, width, &x_offset, &baseline, height);
@@ -396,34 +352,34 @@ void DisplayBuffer::get_text_bounds(int x, int y, const char *text, Font *font,
break;
}
}
void DisplayBuffer::print(int x, int y, Font *font, Color color, const char *text) {
void DisplayBuffer::print(int x, int y, BaseFont *font, Color color, const char *text) {
this->print(x, y, font, color, TextAlign::TOP_LEFT, text);
}
void DisplayBuffer::print(int x, int y, Font *font, TextAlign align, const char *text) {
void DisplayBuffer::print(int x, int y, BaseFont *font, TextAlign align, const char *text) {
this->print(x, y, font, COLOR_ON, align, text);
}
void DisplayBuffer::print(int x, int y, Font *font, const char *text) {
void DisplayBuffer::print(int x, int y, BaseFont *font, const char *text) {
this->print(x, y, font, COLOR_ON, TextAlign::TOP_LEFT, text);
}
void DisplayBuffer::printf(int x, int y, Font *font, Color color, TextAlign align, const char *format, ...) {
void DisplayBuffer::printf(int x, int y, BaseFont *font, Color color, TextAlign align, const char *format, ...) {
va_list arg;
va_start(arg, format);
this->vprintf_(x, y, font, color, align, format, arg);
va_end(arg);
}
void DisplayBuffer::printf(int x, int y, Font *font, Color color, const char *format, ...) {
void DisplayBuffer::printf(int x, int y, BaseFont *font, Color color, const char *format, ...) {
va_list arg;
va_start(arg, format);
this->vprintf_(x, y, font, color, TextAlign::TOP_LEFT, format, arg);
va_end(arg);
}
void DisplayBuffer::printf(int x, int y, Font *font, TextAlign align, const char *format, ...) {
void DisplayBuffer::printf(int x, int y, BaseFont *font, TextAlign align, const char *format, ...) {
va_list arg;
va_start(arg, format);
this->vprintf_(x, y, font, COLOR_ON, align, format, arg);
va_end(arg);
}
void DisplayBuffer::printf(int x, int y, Font *font, const char *format, ...) {
void DisplayBuffer::printf(int x, int y, BaseFont *font, const char *format, ...) {
va_list arg;
va_start(arg, format);
this->vprintf_(x, y, font, COLOR_ON, TextAlign::TOP_LEFT, format, arg);
@@ -470,19 +426,20 @@ void DisplayOnPageChangeTrigger::process(DisplayPage *from, DisplayPage *to) {
if ((this->from_ == nullptr || this->from_ == from) && (this->to_ == nullptr || this->to_ == to))
this->trigger(from, to);
}
void DisplayBuffer::strftime(int x, int y, Font *font, Color color, TextAlign align, const char *format, ESPTime time) {
void DisplayBuffer::strftime(int x, int y, BaseFont *font, Color color, TextAlign align, const char *format,
ESPTime time) {
char buffer[64];
size_t ret = time.strftime(buffer, sizeof(buffer), format);
if (ret > 0)
this->print(x, y, font, color, align, buffer);
}
void DisplayBuffer::strftime(int x, int y, Font *font, Color color, const char *format, ESPTime time) {
void DisplayBuffer::strftime(int x, int y, BaseFont *font, Color color, const char *format, ESPTime time) {
this->strftime(x, y, font, color, TextAlign::TOP_LEFT, format, time);
}
void DisplayBuffer::strftime(int x, int y, Font *font, TextAlign align, const char *format, ESPTime time) {
void DisplayBuffer::strftime(int x, int y, BaseFont *font, TextAlign align, const char *format, ESPTime time) {
this->strftime(x, y, font, COLOR_ON, align, format, time);
}
void DisplayBuffer::strftime(int x, int y, Font *font, const char *format, ESPTime time) {
void DisplayBuffer::strftime(int x, int y, BaseFont *font, const char *format, ESPTime time) {
this->strftime(x, y, font, COLOR_ON, TextAlign::TOP_LEFT, format, time);
}