diff options
author | Cristian Maglie <c.maglie@bug.st> | 2013-08-08 16:43:19 +0200 |
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committer | Cristian Maglie <c.maglie@bug.st> | 2013-08-08 16:43:19 +0200 |
commit | a8193ed933d9c9954cefbfb541cde56770ab5b74 (patch) | |
tree | 80796833fecca5d7426f1d09f7ac9870bab5f062 /libraries/TFT/utility/Adafruit_GFX.cpp | |
parent | a4c9fee673342304a5b12f7f2f7f9ecb9cb26d30 (diff) | |
parent | 5527c44aa443b20d63cf7a276180a36695233924 (diff) |
Merge branch 'ide-1.5.x-library-to-new-format' into ide-1.5.x
Diffstat (limited to 'libraries/TFT/utility/Adafruit_GFX.cpp')
-rw-r--r-- | libraries/TFT/utility/Adafruit_GFX.cpp | 671 |
1 files changed, 0 insertions, 671 deletions
diff --git a/libraries/TFT/utility/Adafruit_GFX.cpp b/libraries/TFT/utility/Adafruit_GFX.cpp deleted file mode 100644 index a7a541c..0000000 --- a/libraries/TFT/utility/Adafruit_GFX.cpp +++ /dev/null @@ -1,671 +0,0 @@ -/****************************************************************** - This is the core graphics library for all our displays, providing - basic graphics primitives (points, lines, circles, etc.). It needs - to be paired with a hardware-specific library for each display - device we carry (handling the lower-level functions). - - Adafruit invests time and resources providing this open - source code, please support Adafruit and open-source hardware - by purchasing products from Adafruit! - - Written by Limor Fried/Ladyada for Adafruit Industries. - BSD license, check license.txt for more information. - All text above must be included in any redistribution. - ******************************************************************/ - -#include "Adafruit_GFX.h" -#include "glcdfont.c" -#include <avr/pgmspace.h> - -void Adafruit_GFX::constructor(int16_t w, int16_t h) { - _width = WIDTH = w; - _height = HEIGHT = h; - - rotation = 0; - cursor_y = cursor_x = 0; - textsize = 1; - textcolor = textbgcolor = 0xFFFF; - wrap = true; - - strokeColor = 0; - useStroke = true; - fillColor = 0; - useFill = false; - -} - - -// draw a circle outline -void Adafruit_GFX::drawCircle(int16_t x0, int16_t y0, int16_t r, - uint16_t color) { - int16_t f = 1 - r; - int16_t ddF_x = 1; - int16_t ddF_y = -2 * r; - int16_t x = 0; - int16_t y = r; - - drawPixel(x0, y0+r, color); - drawPixel(x0, y0-r, color); - drawPixel(x0+r, y0, color); - drawPixel(x0-r, y0, color); - - while (x<y) { - if (f >= 0) { - y--; - ddF_y += 2; - f += ddF_y; - } - x++; - ddF_x += 2; - f += ddF_x; - - drawPixel(x0 + x, y0 + y, color); - drawPixel(x0 - x, y0 + y, color); - drawPixel(x0 + x, y0 - y, color); - drawPixel(x0 - x, y0 - y, color); - drawPixel(x0 + y, y0 + x, color); - drawPixel(x0 - y, y0 + x, color); - drawPixel(x0 + y, y0 - x, color); - drawPixel(x0 - y, y0 - x, color); - - } -} - -void Adafruit_GFX::drawCircleHelper( int16_t x0, int16_t y0, - int16_t r, uint8_t cornername, uint16_t color) { - int16_t f = 1 - r; - int16_t ddF_x = 1; - int16_t ddF_y = -2 * r; - int16_t x = 0; - int16_t y = r; - - while (x<y) { - if (f >= 0) { - y--; - ddF_y += 2; - f += ddF_y; - } - x++; - ddF_x += 2; - f += ddF_x; - if (cornername & 0x4) { - drawPixel(x0 + x, y0 + y, color); - drawPixel(x0 + y, y0 + x, color); - } - if (cornername & 0x2) { - drawPixel(x0 + x, y0 - y, color); - drawPixel(x0 + y, y0 - x, color); - } - if (cornername & 0x8) { - drawPixel(x0 - y, y0 + x, color); - drawPixel(x0 - x, y0 + y, color); - } - if (cornername & 0x1) { - drawPixel(x0 - y, y0 - x, color); - drawPixel(x0 - x, y0 - y, color); - } - } -} - -void Adafruit_GFX::fillCircle(int16_t x0, int16_t y0, int16_t r, - uint16_t color) { - drawFastVLine(x0, y0-r, 2*r+1, color); - fillCircleHelper(x0, y0, r, 3, 0, color); -} - -// used to do circles and roundrects! -void Adafruit_GFX::fillCircleHelper(int16_t x0, int16_t y0, int16_t r, - uint8_t cornername, int16_t delta, uint16_t color) { - - int16_t f = 1 - r; - int16_t ddF_x = 1; - int16_t ddF_y = -2 * r; - int16_t x = 0; - int16_t y = r; - - while (x<y) { - if (f >= 0) { - y--; - ddF_y += 2; - f += ddF_y; - } - x++; - ddF_x += 2; - f += ddF_x; - - if (cornername & 0x1) { - drawFastVLine(x0+x, y0-y, 2*y+1+delta, color); - drawFastVLine(x0+y, y0-x, 2*x+1+delta, color); - } - if (cornername & 0x2) { - drawFastVLine(x0-x, y0-y, 2*y+1+delta, color); - drawFastVLine(x0-y, y0-x, 2*x+1+delta, color); - } - } -} - -// bresenham's algorithm - thx wikpedia -void Adafruit_GFX::drawLine(int16_t x0, int16_t y0, - int16_t x1, int16_t y1, - uint16_t color) { - int16_t steep = abs(y1 - y0) > abs(x1 - x0); - if (steep) { - swap(x0, y0); - swap(x1, y1); - } - - if (x0 > x1) { - swap(x0, x1); - swap(y0, y1); - } - - int16_t dx, dy; - dx = x1 - x0; - dy = abs(y1 - y0); - - int16_t err = dx / 2; - int16_t ystep; - - if (y0 < y1) { - ystep = 1; - } else { - ystep = -1; - } - - for (; x0<=x1; x0++) { - if (steep) { - drawPixel(y0, x0, color); - } else { - drawPixel(x0, y0, color); - } - err -= dy; - if (err < 0) { - y0 += ystep; - err += dx; - } - } -} - - -// draw a rectangle -void Adafruit_GFX::drawRect(int16_t x, int16_t y, - int16_t w, int16_t h, - uint16_t color) { - drawFastHLine(x, y, w, color); - drawFastHLine(x, y+h-1, w, color); - drawFastVLine(x, y, h, color); - drawFastVLine(x+w-1, y, h, color); -} - -void Adafruit_GFX::drawFastVLine(int16_t x, int16_t y, - int16_t h, uint16_t color) { - // stupidest version - update in subclasses if desired! - drawLine(x, y, x, y+h-1, color); -} - - -void Adafruit_GFX::drawFastHLine(int16_t x, int16_t y, - int16_t w, uint16_t color) { - // stupidest version - update in subclasses if desired! - drawLine(x, y, x+w-1, y, color); -} - -void Adafruit_GFX::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, - uint16_t color) { - // stupidest version - update in subclasses if desired! - for (int16_t i=x; i<x+w; i++) { - drawFastVLine(i, y, h, color); - } -} - - -void Adafruit_GFX::fillScreen(uint16_t color) { - fillRect(0, 0, _width, _height, color); -} - -// draw a rounded rectangle! -void Adafruit_GFX::drawRoundRect(int16_t x, int16_t y, int16_t w, - int16_t h, int16_t r, uint16_t color) { - // smarter version - drawFastHLine(x+r , y , w-2*r, color); // Top - drawFastHLine(x+r , y+h-1, w-2*r, color); // Bottom - drawFastVLine( x , y+r , h-2*r, color); // Left - drawFastVLine( x+w-1, y+r , h-2*r, color); // Right - // draw four corners - drawCircleHelper(x+r , y+r , r, 1, color); - drawCircleHelper(x+w-r-1, y+r , r, 2, color); - drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color); - drawCircleHelper(x+r , y+h-r-1, r, 8, color); -} - -// fill a rounded rectangle! -void Adafruit_GFX::fillRoundRect(int16_t x, int16_t y, int16_t w, - int16_t h, int16_t r, uint16_t color) { - // smarter version - fillRect(x+r, y, w-2*r, h, color); - - // draw four corners - fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color); - fillCircleHelper(x+r , y+r, r, 2, h-2*r-1, color); -} - -// draw a triangle! -void Adafruit_GFX::drawTriangle(int16_t x0, int16_t y0, - int16_t x1, int16_t y1, - int16_t x2, int16_t y2, uint16_t color) { - drawLine(x0, y0, x1, y1, color); - drawLine(x1, y1, x2, y2, color); - drawLine(x2, y2, x0, y0, color); -} - -// fill a triangle! -void Adafruit_GFX::fillTriangle ( int16_t x0, int16_t y0, - int16_t x1, int16_t y1, - int16_t x2, int16_t y2, uint16_t color) { - - int16_t a, b, y, last; - - // Sort coordinates by Y order (y2 >= y1 >= y0) - if (y0 > y1) { - swap(y0, y1); swap(x0, x1); - } - if (y1 > y2) { - swap(y2, y1); swap(x2, x1); - } - if (y0 > y1) { - swap(y0, y1); swap(x0, x1); - } - - if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing - a = b = x0; - if(x1 < a) a = x1; - else if(x1 > b) b = x1; - if(x2 < a) a = x2; - else if(x2 > b) b = x2; - drawFastHLine(a, y0, b-a+1, color); - return; - } - - int16_t - dx01 = x1 - x0, - dy01 = y1 - y0, - dx02 = x2 - x0, - dy02 = y2 - y0, - dx12 = x2 - x1, - dy12 = y2 - y1, - sa = 0, - sb = 0; - - // For upper part of triangle, find scanline crossings for segments - // 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1 - // is included here (and second loop will be skipped, avoiding a /0 - // error there), otherwise scanline y1 is skipped here and handled - // in the second loop...which also avoids a /0 error here if y0=y1 - // (flat-topped triangle). - if(y1 == y2) last = y1; // Include y1 scanline - else last = y1-1; // Skip it - - for(y=y0; y<=last; y++) { - a = x0 + sa / dy01; - b = x0 + sb / dy02; - sa += dx01; - sb += dx02; - /* longhand: - a = x0 + (x1 - x0) * (y - y0) / (y1 - y0); - b = x0 + (x2 - x0) * (y - y0) / (y2 - y0); - */ - if(a > b) swap(a,b); - drawFastHLine(a, y, b-a+1, color); - } - - // For lower part of triangle, find scanline crossings for segments - // 0-2 and 1-2. This loop is skipped if y1=y2. - sa = dx12 * (y - y1); - sb = dx02 * (y - y0); - for(; y<=y2; y++) { - a = x1 + sa / dy12; - b = x0 + sb / dy02; - sa += dx12; - sb += dx02; - /* longhand: - a = x1 + (x2 - x1) * (y - y1) / (y2 - y1); - b = x0 + (x2 - x0) * (y - y0) / (y2 - y0); - */ - if(a > b) swap(a,b); - drawFastHLine(a, y, b-a+1, color); - } -} - -void Adafruit_GFX::drawBitmap(int16_t x, int16_t y, - const uint8_t *bitmap, int16_t w, int16_t h, - uint16_t color) { - - int16_t i, j, byteWidth = (w + 7) / 8; - - for(j=0; j<h; j++) { - for(i=0; i<w; i++ ) { - if(pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) { - drawPixel(x+i, y+j, color); - } - } - } -} - - -#if ARDUINO >= 100 -size_t Adafruit_GFX::write(uint8_t c) { -#else -void Adafruit_GFX::write(uint8_t c) { -#endif - if (c == '\n') { - cursor_y += textsize*8; - cursor_x = 0; - } else if (c == '\r') { - // skip em - } else { - drawChar(cursor_x, cursor_y, c, textcolor, textbgcolor, textsize); - cursor_x += textsize*6; - if (wrap && (cursor_x > (_width - textsize*6))) { - cursor_y += textsize*8; - cursor_x = 0; - } - } -#if ARDUINO >= 100 - return 1; -#endif -} - -// draw a character -void Adafruit_GFX::drawChar(int16_t x, int16_t y, unsigned char c, - uint16_t color, uint16_t bg, uint8_t size) { - - if((x >= _width) || // Clip right - (y >= _height) || // Clip bottom - ((x + 5 * size - 1) < 0) || // Clip left - ((y + 8 * size - 1) < 0)) // Clip top - return; - - for (int8_t i=0; i<6; i++ ) { - uint8_t line; - if (i == 5) - line = 0x0; - else - line = pgm_read_byte(font+(c*5)+i); - for (int8_t j = 0; j<8; j++) { - if (line & 0x1) { - if (size == 1) // default size - drawPixel(x+i, y+j, color); - else { // big size - fillRect(x+(i*size), y+(j*size), size, size, color); - } - } else if (bg != color) { - if (size == 1) // default size - drawPixel(x+i, y+j, bg); - else { // big size - fillRect(x+i*size, y+j*size, size, size, bg); - } - } - line >>= 1; - } - } -} - -void Adafruit_GFX::setCursor(int16_t x, int16_t y) { - cursor_x = x; - cursor_y = y; -} - - -void Adafruit_GFX::setTextSize(uint8_t s) { - textsize = (s > 0) ? s : 1; -} - - -void Adafruit_GFX::setTextColor(uint16_t c) { - textcolor = c; - textbgcolor = c; - // for 'transparent' background, we'll set the bg - // to the same as fg instead of using a flag -} - - void Adafruit_GFX::setTextColor(uint16_t c, uint16_t b) { - textcolor = c; - textbgcolor = b; - } - -void Adafruit_GFX::setTextWrap(boolean w) { - wrap = w; -} - -uint8_t Adafruit_GFX::getRotation(void) { - rotation %= 4; - return rotation; -} - -void Adafruit_GFX::setRotation(uint8_t x) { - x %= 4; // cant be higher than 3 - rotation = x; - switch (x) { - case 0: - case 2: - _width = WIDTH; - _height = HEIGHT; - break; - case 1: - case 3: - _width = HEIGHT; - _height = WIDTH; - break; - } -} - -void Adafruit_GFX::invertDisplay(boolean i) { - // do nothing, can be subclassed -} - - -// return the size of the display which depends on the rotation! -int16_t Adafruit_GFX::width(void) { - return _width; -} - -int16_t Adafruit_GFX::height(void) { - return _height; -} - - - -uint16_t Adafruit_GFX::newColor(uint8_t r, uint8_t g, uint8_t b) { - return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3); -} - - -void Adafruit_GFX::background(uint8_t red, uint8_t green, uint8_t blue) { - background(newColor(red, green, blue)); -} - -void Adafruit_GFX::background(color c) { - fillScreen(c); -} - -void Adafruit_GFX::stroke(uint8_t red, uint8_t green, uint8_t blue) { - stroke(newColor(red, green, blue)); -} - -void Adafruit_GFX::stroke(color c) { - useStroke = true; - strokeColor = c; - setTextColor(c); -} - -void Adafruit_GFX::noStroke() { - useStroke = false; -} - -void Adafruit_GFX::noFill() { - useFill = false; -} - -void Adafruit_GFX::fill(uint8_t red, uint8_t green, uint8_t blue) { - fill(newColor(red, green, blue)); -} - -void Adafruit_GFX::fill(color c) { - useFill = true; - fillColor = c; -} - - -void Adafruit_GFX::text(const char * text, int16_t x, int16_t y) { - if (!useStroke) - return; - - setTextWrap(false); - setTextColor(strokeColor); - setCursor(x, y); - print(text); -} - -void Adafruit_GFX::textWrap(const char * text, int16_t x, int16_t y) { - if (!useStroke) - return; - - setTextWrap(true); - setTextColor(strokeColor); - setCursor(x, y); - print(text); -} - - -void Adafruit_GFX::textSize(uint8_t size) { - setTextSize(size); -} - -void Adafruit_GFX::point(int16_t x, int16_t y) { - if (!useStroke) - return; - - drawPixel(x, y, strokeColor); -} - -void Adafruit_GFX::line(int16_t x1, int16_t y1, int16_t x2, int16_t y2) { - if (!useStroke) - return; - - if (x1 == x2) { - if (y1 < y2) - drawFastVLine(x1, y1, y2 - y1, strokeColor); - else - drawFastVLine(x1, y2, y1 - y2, strokeColor); - } - else if (y1 == y2) { - if (x1 < x2) - drawFastHLine(x1, y1, x2 - x1, strokeColor); - else - drawFastHLine(x2, y1, x1 - x2, strokeColor); - } - else { - drawLine(x1, y1, x2, y2, strokeColor); - } -} - -void Adafruit_GFX::rect(int16_t x, int16_t y, int16_t width, int16_t height) { - if (useFill) { - fillRect(x, y, width, height, fillColor); - } - if (useStroke) { - drawRect(x, y, width, height, strokeColor); - } -} - -void Adafruit_GFX::rect(int16_t x, int16_t y, int16_t width, int16_t height, int16_t radius) { - if (radius == 0) { - rect(x, y, width, height); - } - if (useFill) { - fillRoundRect(x, y, width, height, radius, fillColor); - } - if (useStroke) { - drawRoundRect(x, y, width, height, radius, strokeColor); - } -} - -void Adafruit_GFX::circle(int16_t x, int16_t y, int16_t r) { - if (r == 0) - return; - - if (useFill) { - fillCircle(x, y, r, fillColor); - } - if (useStroke) { - drawCircle(x, y, r, strokeColor); - } -} - -void Adafruit_GFX::triangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3) { - if (useFill) { - fillTriangle(x1, y1, x2, y2, x3, y3, fillColor); - } - if (useStroke) { - drawTriangle(x1, y1, x2, y2, x3, y3, strokeColor); - } -} - -#if defined(__SD_H__) // Arduino SD library - -#define BUFFPIXEL 20 - -void Adafruit_GFX::image(PImage & img, uint16_t x, uint16_t y) { - int w, h, row, col; - uint8_t r, g, b; - uint32_t pos = 0; - uint8_t sdbuffer[3*BUFFPIXEL]; // pixel buffer (R+G+B per pixel) - uint8_t buffidx = sizeof(sdbuffer); // Current position in sdbuffer - - // Crop area to be loaded - w = img._bmpWidth; - h = img._bmpHeight; - if((x+w-1) >= width()) w = width() - x; - if((y+h-1) >= height()) h = height() - y; - - /* - // Set TFT address window to clipped image bounds - setAddrWindow(x, y, x+w-1, y+h-1); - */ - - for (row=0; row<h; row++) { // For each scanline... - // Seek to start of scan line. It might seem labor- - // intensive to be doing this on every line, but this - // method covers a lot of gritty details like cropping - // and scanline padding. Also, the seek only takes - // place if the file position actually needs to change - // (avoids a lot of cluster math in SD library). - if(img._flip) // Bitmap is stored bottom-to-top order (normal BMP) - pos = img._bmpImageoffset + (img._bmpHeight - 1 - row) * img._rowSize; - else // Bitmap is stored top-to-bottom - pos = img._bmpImageoffset + row * img._rowSize; - if(img._bmpFile.position() != pos) { // Need seek? - img._bmpFile.seek(pos); - buffidx = sizeof(sdbuffer); // Force buffer reload - } - - for (col=0; col<w; col++) { // For each pixel... - // Time to read more pixel data? - if (buffidx >= sizeof(sdbuffer)) { // Indeed - img._bmpFile.read(sdbuffer, sizeof(sdbuffer)); - buffidx = 0; // Set index to beginning - } - - // Convert pixel from BMP to TFT format, push to display - b = sdbuffer[buffidx++]; - g = sdbuffer[buffidx++]; - r = sdbuffer[buffidx++]; - //pushColor(tft.Color565(r,g,b)); - drawPixel(x + col, y + row, newColor(r, g, b)); - - } // end pixel - } // end scanline - -} - -#endif
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