UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
Dependents: UniGraphic-St7920-Test AfficheurUTILECO
Fork of UniGraphic by
Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller
Had to adapt LCD for following reasons:
- Give access to screenbuffer buffer[] to parent class
- pixel() and pixel_read() as they are hardware-dependent
- added reset-pin to IIC-Interface
GraphicDisplay:: sends buffer to LCD when auto_update is set to true.
Testprogram for ST7920 can be found here:
https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/
Diff: Graphics/GraphicsDisplay.h
- Revision:
- 0:75ec1b3cde17
- Child:
- 2:713844a55c4e
diff -r 000000000000 -r 75ec1b3cde17 Graphics/GraphicsDisplay.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Graphics/GraphicsDisplay.h Thu Feb 12 22:22:47 2015 +0000 @@ -0,0 +1,312 @@ +/* mbed GraphicsDisplay Display Library Base Class + * Copyright (c) 2007-2009 sford + * Released under the MIT License: http://mbed.org/license/mit + * + * A library for providing a common base class for Graphics displays + * To port a new display, derive from this class and implement + * the constructor (setup the display), pixel (put a pixel + * at a location), width and height functions. Everything else + * (locate, printf, putc, cls, window, putp, fill, blit, blitbit) + * will come for free. You can also provide a specialised implementation + * of window and putp to speed up the results + */ + +#ifndef MBED_GRAPHICSDISPLAY_H +#define MBED_GRAPHICSDISPLAY_H + +#include "TextDisplay.h" +#include "Terminal6x8.h" + +/** Bitmap + */ +struct Bitmap_s{ + int xSize; + int ySize; + int Byte_in_Line; + char* data; + }; + +/** A common base class for Graphics displays +*/ +class GraphicsDisplay : public TextDisplay { + +public: + + /** Create a GraphicsDisplay interface + * @param name The name used by the parent class to access the interface + */ + GraphicsDisplay(const char* name); + +////// functions needing implementation in derived implementation class /////////////////////////////////////// +////// ---------------------------------------------------------------- /////////////////////////////////////// + + /** Draw a pixel in the specified color. + * @note this method must be supported in the derived class. + * @param x is the horizontal offset to this pixel. + * @param y is the vertical offset to this pixel. + * @param color defines the color for the pixel. + */ + virtual void pixel(int x, int y, unsigned short color) = 0; + + + + + /** Set the window, which controls where items are written to the screen. + * When something hits the window width, it wraps back to the left side + * and down a row. If the initial write is outside the window, it will + * be captured into the window when it crosses a boundary. + * @param x is the left edge in pixels. + * @param y is the top edge in pixels. + * @param w is the window width in pixels. + * @param h is the window height in pixels. + * @note this method must be overridden in a derived class. + */ + virtual void window(int x, int y, int w, int h) = 0; + + /** Push a single pixel into the window and increment position. + * You may first call window() then push pixels in loop. + * @param color is the pixel color. + * @note this method must be overridden in a derived class. + */ + virtual void window_pushpixel(unsigned short color) = 0; + + /** If framebuffer is used, it needs to be sent to LCD from time to time + @note this method must be overridden in a derived class. + @note real function for LCD, dummy for TFT + */ + virtual void copy_to_lcd() = 0; + +/////// functions that come for free, but can be overwritten/////////////////////////////////////////////////// +/////// ----------------------------------------------------/////////////////////////////////////////////////// + + /** Set window to max possible size + * May be overridden in a derived class. + */ + virtual void WindowMax(void); + + /** clear the entire screen + * Basically it sets windomax then fill with background color + * May be overridden in a derived class. + */ + virtual void cls(); + + /** draw a circle + * + * @param x0,y0 center + * @param r radius + * @param color 16 bit color * + * + */ + virtual void circle(int x, int y, int r, unsigned short color); + + /** draw a filled circle + * + * @param x0,y0 center + * @param r radius + * @param color 16 bit color * + */ + virtual void fillcircle(int x, int y, int r, unsigned short color); + + + /** draw a 1 pixel line + * + * @param x0,y0 start point + * @param x1,y1 stop point + * @param color 16 bit color + * + */ + virtual void line(int x0, int y0, int x1, int y1, unsigned short color); + + /** draw a horizontal line + * + * @param x0 horizontal start + * @param x1 horizontal stop + * @param y vertical position + * @param color 16 bit color + * + */ + void hline(int x0, int x1, int y, unsigned short color); + + /** draw a vertical line + * + * @param x horizontal position + * @param y0 vertical start + * @param y1 vertical stop + * @param color 16 bit color + */ + void vline(int y0, int y1, int x, unsigned short color); + + /** draw a rect + * + * @param x0,y0 top left corner + * @param x1,y1 down right corner + * @param color 16 bit color + * * + */ + virtual void rect(int x0, int y0, int x1, int y1, unsigned short color); + + /** draw a filled rect + * + * @param x0,y0 top left corner + * @param x1,y1 down right corner + * @param color 16 bit color + * + */ + virtual void fillrect(int x0, int y0, int x1, int y1, unsigned short color); + + /** setup cursor position for text + * + * @param x x-position (top left) + * @param y y-position + */ + virtual void locate(int x, int y); + + /** put a char on the screen + * + * @param value char to print + * @returns printed char + * + */ + virtual int _putc(int value); + + /** draw a character on given position out of the active font to the TFT + * + * @param x x-position of char (top left) + * @param y y-position + * @param c char to print + * + */ + virtual void character(int x, int y, int c); + + /** paint a bitmap on the TFT + * + * @param x,y : upper left corner + * @param w width of bitmap + * @param h high of bitmap + * @param *bitmap pointer to the bitmap data + * + * bitmap format: 16 bit R5 G6 B5 + * + * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5 + * use winhex to load this file and mark data stating at offset 0x46 to end + * use edit -> copy block -> C Source to export C array + * paste this array into your program + * + * define the array as static const unsigned char to put it into flash memory + * cast the pointer to (unsigned char *) : + * tft.Bitmap(10,40,309,50,(unsigned char *)scala); + */ + void Bitmap(int x, int y, int w, int h,unsigned char *bitmap); + + /** paint monochrome bitmap to screen + * + * @param bm Bitmap in flash + * @param x x start + * @param y y start + * + */ + void Bitmap_BW(Bitmap_s bm, int x, int y); + + /** paint a 16 bit BMP from filesytem on the TFT (slow) + * + * @param x,y : position of upper left corner + * @param *Name_BMP name of the BMP file with drive: "/local/test.bmp" + * + * @returns 1 if bmp file was found and painted + * @returns 0 if bmp file was found not found + * @returns -1 if file is no bmp + * @returns -2 if bmp file is no 16 bit bmp + * @returns -3 if bmp file is to big for screen + * @returns -4 if buffer malloc go wrong + * + * bitmap format: 16 bit R5 G6 B5 + * + * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5 + * copy to internal file system or SD card + */ + int BMP_16(int x, int y, const char *Name_BMP); + + + + /** select the font to use + * + * @param f pointer to font array + * @param firstascii first ascii code present in font array, default 32 (space) + * @param lastascii last ascii code present in font array, default 127 (DEL) + * + * font array can created with GLCD Font Creator from http://www.mikroe.com + * you have to add 4 parameter at the beginning of the font array to use: + * - the number of byte / char (not used in this revision, set to whatever) + * - the vertial size in pixel + * - the horizontal size in pixel + * - the number of byte per vertical line (not used in this revision, set to whatever) + * you also have to change the array to cont unsigned char[] and __align(2) + * + */ + void set_font(unsigned char* f, unsigned char firstascii=32, unsigned char lastascii=127); + + /** Get the number of columns based on the currently active font. + * @returns number of columns. + * @note this method may be overridden in a derived class. + */ + virtual int columns(); + + /** Get the number of rows based on the currently active font. + * @returns number of rows. + * @note this method may be overridden in a derived class. + */ + virtual int rows(); + + /** get the current oriented screen width in pixels + * @returns screen width in pixels. + */ + int width(); + + /** get the current oriented screen height in pixels + * @returns screen height in pixels. + */ + int height(); + + /** set the current oriented screen width in pixels + * @param width screen width in pixels. + */ + void set_width(int width); + + /** set the current oriented screen height in pixels + * @param height screen height in pixels. + */ + void set_height(int height); + + +protected: + + + + bool auto_up; // autoupdate flag for LCD + + + +private: + + unsigned char* font; + // display width and height related to current orientation + int oriented_width; + int oriented_height; + + // text char location + int char_x; + int char_y; + + int fontoffset;// bytes / char (short) + int fonthor; // hor size of font (char) + int fontvert; // ver size of font (char) + int fontbpl; // bytes per line (char) + unsigned char firstch; // first ascii code present in font array (usually 32) + unsigned char lastch; // last ascii code present in font array (usually 127) + + + + +}; + +#endif