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lgfx_filesystem_support.hpp
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/
lgfx_filesystem_support.hpp
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/*----------------------------------------------------------------------------/
Lovyan GFX library - LCD graphics library .
support platform:
ESP32 (SPI/I2S) with Arduino/ESP-IDF
ATSAMD51 (SPI) with Arduino
Original Source:
https://github.com/lovyan03/LovyanGFX/
Licence:
[BSD](https://github.com/lovyan03/LovyanGFX/blob/master/license.txt)
Author:
[lovyan03](https://twitter.com/lovyan03)
Contributors:
[ciniml](https://github.com/ciniml)
[mongonta0716](https://github.com/mongonta0716)
[tobozo](https://github.com/tobozo)
/----------------------------------------------------------------------------*/
#ifndef LGFX_FILESYSTEM_SUPPORT_HPP_
#define LGFX_FILESYSTEM_SUPPORT_HPP_
#include <cmath>
#include <cstring>
#include <string>
#include "../Fonts/lgfx_fonts.hpp"
namespace lgfx
{
template <class Base>
class LGFX_FILESYSTEM_Support : public Base
{
void init_font_file(void)
{
if (this->_font_file == nullptr)
{
this->_font_file = new FileWrapper();
}
}
public:
using Base::drawBmp;
using Base::drawJpg;
using Base::drawPng;
using Base::loadFont;
virtual ~LGFX_FILESYSTEM_Support<Base>()
{
if (this->_font_file != nullptr)
{
delete this->_font_file;
this->_font_file = nullptr;
}
}
bool loadFont(const char *path)
{
this->unloadFont();
init_font_file();
this->prepareTmpTransaction(this->_font_file);
this->_font_file->preRead();
bool result = this->_font_file->open(path, "r");
if (!result) {
std::string filename = "/";
if (path[0] == '/') filename = path;
else filename += path;
int len = strlen(path);
if (memcmp(&path[len - 4], ".vlw", 4)) {
filename += ".vlw";
}
result = this->_font_file->open(filename.c_str(), "r");
}
auto font = new VLWfont();
this->_runtime_font.reset(font);
if (result) {
result = font->loadFont(this->_font_file);
}
if (result) {
this->_font = font;
this->_font->getDefaultMetric(&this->_font_metrics);
} else {
this->unloadFont();
}
this->_font_file->postRead();
return result;
}
#if defined (ARDUINO)
#if defined (FS_H) || defined (__SEEED_FS__)
void loadFont(const char *path, fs::FS &fs)
{
init_font_file();
this->_font_file->setFS(fs);
loadFont(path);
}
inline bool drawBmp(fs::FS &fs, const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
return drawBmpFile(fs, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawBmpFile(fs::FS &fs, const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper file(fs);
return this->drawBmpFile(&file, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawJpgFile(fs::FS &fs, const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper file(fs);
return this->drawJpgFile(&file, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
[[deprecated("use float scale")]]
inline bool drawJpgFile(fs::FS &fs, const char *path, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, jpeg_div::jpeg_div_t scale)
{
return drawJpgFile(fs, path, x, y, maxWidth, maxHeight, offX, offY, 1.0f / (1 << scale));
}
inline bool drawPngFile(fs::FS &fs, const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper file(fs);
return this->drawPngFile(&file, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawBmpFile(fs::FS &fs, fs::File *file, std::int32_t x=0, std::int32_t y=0, std::int32_t maxWidth=0, std::int32_t maxHeight=0, std::int32_t offX=0, std::int32_t offY=0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper data(fs, file);
this->prepareTmpTransaction(&data);
return this->draw_bmp(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawJpgFile(fs::FS &fs, fs::File *file, std::int32_t x=0, std::int32_t y=0, std::int32_t maxWidth=0, std::int32_t maxHeight=0, std::int32_t offX=0, std::int32_t offY=0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper data(fs, file);
this->prepareTmpTransaction(&data);
return this->draw_jpg(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
[[deprecated("use float scale")]]
inline bool drawJpgFile(fs::FS &fs, fs::File *file, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, jpeg_div::jpeg_div_t scale)
{
return drawJpgFile(fs, file, x, y, maxWidth, maxHeight, offX, offY, 1.0f / (1 << scale));
}
inline bool drawPngFile(fs::FS &fs, fs::File *file, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper data(fs, file);
this->prepareTmpTransaction(&data);
return this->draw_png(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawBmp(fs::File *dataSource, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
StreamWrapper data;
data.set(dataSource);
data.need_transaction = true;
this->prepareTmpTransaction(&data);
return this->draw_bmp(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawJpg(fs::File *dataSource, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
StreamWrapper data;
data.set(dataSource);
data.need_transaction = true;
this->prepareTmpTransaction(&data);
return this->draw_jpg(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
[[deprecated("use float scale")]]
inline bool drawJpg(fs::File *dataSource, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, jpeg_div::jpeg_div_t scale)
{
return drawJpg(dataSource, x, y, maxWidth, maxHeight, offX, offY, 1.0f / (1 << scale));
}
inline bool drawPng(fs::File *dataSource, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
StreamWrapper data;
data.set(dataSource);
data.need_transaction = true;
this->prepareTmpTransaction(&data);
return this->draw_png(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
#endif
#if defined (Stream_h)
inline bool drawBmp(Stream *dataSource, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
StreamWrapper data;
data.set(dataSource);
return this->draw_bmp(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawJpg(Stream *dataSource, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
StreamWrapper data;
data.set(dataSource);
return this->draw_jpg(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
[[deprecated("use float scale")]]
inline bool drawJpg(Stream *dataSource, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, jpeg_div::jpeg_div_t scale)
{
return drawJpg(dataSource, x, y, maxWidth, maxHeight, offX, offY, 1.0f / (1 << scale));
}
inline bool drawPng(Stream *dataSource, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
StreamWrapper data;
data.set(dataSource);
return this->draw_png(&data, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
#if defined (HTTPClient_H_)
struct HttpWrapper : public StreamWrapper
{
int read(std::uint8_t *buf, std::uint32_t len) override {
while (_http.connected() && !_stream->available() && _index < _length) delay(1);
return StreamWrapper::read(buf, len);
}
bool open(const char* url) {
_http.begin(url);
int httpCode = _http.GET();
set(_http.getStreamPtr(), _http.getSize());
if (httpCode == HTTP_CODE_OK) return true;
log_e("HTTP ERROR: %d\n", httpCode);
return false;
}
void close() override { _http.end(); }
private:
HTTPClient _http;
};
inline bool drawBmpUrl(const char* url, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
HttpWrapper http;
return http.open(url) && drawBmp(&http, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawJpgUrl(const char* url, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
HttpWrapper http;
return http.open(url) && drawJpg(&http, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
[[deprecated("use float scale")]]
inline bool drawJpgUrl(const char* url, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, jpeg_div::jpeg_div_t scale)
{
return drawJpgUrl(url, x, y, maxWidth, maxHeight, offX, offY, 1.0f / (1 << scale));
}
inline bool drawPngUrl(const char* url, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
HttpWrapper http;
return http.open(url) && drawPng(&http, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
#endif
#endif
#elif defined (CONFIG_IDF_TARGET_ESP32) || defined(__SAMD51_HARMONY__) // ESP-IDF or Harmony
inline bool drawBmpFile(const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper file;
return drawBmpFile(&file, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
inline bool drawJpgFile(const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper file;
return drawJpgFile(&file, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
[[deprecated("use float scale")]]
inline bool drawJpgFile(const char *path, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, jpeg_div::jpeg_div_t scale)
{
return drawJpgFile(path, x, y, maxWidth, maxHeight, offX, offY, 1.0f / (1 << scale));
}
inline bool drawPngFile(const char *path, std::int32_t x = 0, std::int32_t y = 0, std::int32_t maxWidth = 0, std::int32_t maxHeight = 0, std::int32_t offX = 0, std::int32_t offY = 0, float scale_x = 1.0f, float scale_y = 0.0f, datum_t datum = datum_t::top_left)
{
FileWrapper file;
return drawPngFile(&file, path, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
}
#endif
private:
bool drawBmpFile(FileWrapper* file, const char *path, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, float scale_x, float scale_y, datum_t datum)
{
bool res = false;
this->prepareTmpTransaction(file);
file->preRead();
if (file->open(path, "r")) {
res = this->draw_bmp(file, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
file->close();
}
file->postRead();
return res;
}
bool drawJpgFile(FileWrapper* file, const char *path, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, float scale_x, float scale_y, datum_t datum)
{
bool res = false;
this->prepareTmpTransaction(file);
file->preRead();
if (file->open(path, "r")) {
res = this->draw_jpg(file, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
file->close();
}
file->postRead();
return res;
}
bool drawPngFile(FileWrapper* file, const char *path, std::int32_t x, std::int32_t y, std::int32_t maxWidth, std::int32_t maxHeight, std::int32_t offX, std::int32_t offY, float scale_x, float scale_y, datum_t datum)
{
bool res = false;
this->prepareTmpTransaction(file);
file->preRead();
if (file->open(path, "r")) {
res = this->draw_png(file, x, y, maxWidth, maxHeight, offX, offY, scale_x, scale_y, datum);
file->close();
}
file->postRead();
return res;
}
};
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
}
#endif