| class Adafruit_GFX; | |
| /// This class mimics Processing's PImage, but with fewer | |
| /// capabilities. It allows an image stored in the SD card to be | |
| /// drawn to the display. | |
| /// @author Enrico Gueli <enrico.gueli@gmail.com> | |
| class PImage { | |
| public: | |
| PImage() : | |
| _valid(false), | |
| _bmpWidth(0), | |
| _bmpHeight(0) { } | |
| void draw(Adafruit_GFX & glcd, int16_t x, int16_t y); | |
| static PImage loadImage(const char * fileName); | |
| void close() { _bmpFile.close(); } | |
| bool isValid() { return _valid; } | |
| int width() { return _bmpWidth; } | |
| int height() { return _bmpHeight; } | |
| private: | |
| friend class Adafruit_GFX; | |
| File _bmpFile; | |
| int _bmpWidth, _bmpHeight; // W+H in pixels | |
| uint8_t _bmpDepth; // Bit depth (currently must be 24) | |
| uint32_t _bmpImageoffset; // Start of image data in file | |
| uint32_t _rowSize; // Not always = bmpWidth; may have padding | |
| bool _flip; | |
| bool _valid; | |
| PImage(File & bmpFile, int bmpWidth, int bmpHeight, uint8_t bmpDepth, uint32_t bmpImageoffset, uint32_t rowSize, bool flip) : | |
| _bmpFile(bmpFile), | |
| _bmpWidth(bmpWidth), | |
| _bmpHeight(bmpHeight), | |
| _bmpDepth(bmpDepth), | |
| _bmpImageoffset(bmpImageoffset), | |
| _rowSize(rowSize), | |
| _flip(flip), | |
| _valid(true) // since Adafruit_GFX is friend, we could just let it write the variables and save some CPU cycles | |
| { } | |
| static uint16_t read16(File f); | |
| static uint32_t read32(File f); | |
| // TODO close the file in ~PImage and PImage(const PImage&) | |
| }; | |