alunno4 alunno4
Bracciale Slave
Diff: Adafruit_GFX.cpp
- Revision:
- 19:e5d8d6e7fac5
- Parent:
- 14:edb3c36aa1a7
--- a/Adafruit_GFX.cpp Tue Feb 07 23:52:12 2017 +0000
+++ b/Adafruit_GFX.cpp Mon Feb 25 21:14:16 2019 +0000
@@ -1,367 +1,8 @@
-/***********************************
-This is a our graphics core library, for all our displays.
-We'll be adapting all the
-existing libaries to use this core to make updating, support
-and upgrading easier!
-
-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
-****************************************/
-
-/*
- * Modified by Neal Horman 7/14/2012 for use in mbed
- */
-
#include "mbed.h"
#include "Adafruit_GFX.h"
#include "glcdfont.h"
-#if defined(GFX_WANT_ABSTRACTS)
-// 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);
- }
- }
-}
-#endif
-
-#if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
-// 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;
- }
- }
-}
-
-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::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);
-}
-#endif
-
-#if defined(GFX_WANT_ABSTRACTS)
-// 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::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::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)
-{
- for (int16_t j=0; j<h; j++)
- {
- for (int16_t i=0; i<w; i++ )
- {
- if (bitmap[i + (j/8)*w] & _BV(j%8))
- drawPixel(x+i, y+j, color);
- }
- }
-}
-#endif
size_t Adafruit_GFX::writeChar(uint8_t c)
{
@@ -432,23 +73,4 @@
line >>= 1;
}
}
-}
-
-void Adafruit_GFX::setRotation(uint8_t x)
-{
- x %= 4; // cant be higher than 3
- rotation = x;
- switch (x)
- {
- case 0:
- case 2:
- _width = _rawWidth;
- _height = _rawHeight;
- break;
- case 1:
- case 3:
- _width = _rawHeight;
- _height = _rawWidth;
- break;
- }
-}
+}
\ No newline at end of file