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Kinda started on roundrects

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Ladyada
2011-06-08 16:38:10 -04:00
parent 23f92b31a1
commit 8ed1df7bea
1 changed files with 40 additions and 13 deletions
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TFTLCD.cpp
+40 -13
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@@ -1,3 +1,5 @@
#include "TFTLCD.h"
// Graphics library by ladyada/adafruit with init code from Rossum
// MIT license
@@ -15,6 +17,11 @@
#define DATA1_MASK 0xD0
#define DATA2_MASK 0x2F
#define MEGA_DATAPORT1 PORTH
#define MEGA_DATAPORT2 PORTB
#define MEGA_DATAPORT3 PORTB
#define MEGA_DATA1_MASK
// TODO: add mega pinout
#else
// for the breakout board tutorial, two ports are used :/
@@ -36,7 +43,6 @@
#endif
#include "TFTLCD.h"
#include "glcdfont.c"
#include <avr/pgmspace.h>
#include "pins_arduino.h"
@@ -121,6 +127,18 @@ void TFTLCD::drawRect(uint16_t x, uint16_t y, uint16_t w, uint16_t h,
drawVerticalLine(x+w-1, y, h, color);
}
// draw a rounded rectangle
void TFTLCD::drawRoundRect(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t r,
uint16_t color) {
// smarter version
drawHorizontalLine(x+r, y, w-2*r, color);
drawHorizontalLine(x+r, y+h-1, w-2*r, color);
drawVerticalLine(x, y+r, h-2*r, color);
drawVerticalLine(x+w-1, y+r, h-2*r, color);
drawCircleHelper(x+w/2, y+w/2, r, (w - 2*r - 1)/2, (h - 2*r - 1)/2, 0xFFFF);
}
// fill a circle
void TFTLCD::fillCircle(uint16_t x0, uint16_t y0, uint16_t r, uint16_t color) {
int16_t f = 1 - r;
@@ -150,18 +168,27 @@ void TFTLCD::fillCircle(uint16_t x0, uint16_t y0, uint16_t r, uint16_t color) {
}
// draw a circle outline
void TFTLCD::drawCircle(uint16_t x0, uint16_t y0, uint16_t r,
uint16_t color) {
drawCircleHelper(x0, y0, r, 0, 0, color);
}
void TFTLCD::drawCircleHelper(uint16_t x0, uint16_t y0, uint16_t r, uint16_t xspace, uint16_t yspace,
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);
if (xspace == 0) {
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) {
@@ -173,15 +200,15 @@ void TFTLCD::drawCircle(uint16_t x0, uint16_t y0, uint16_t r,
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 + x + xspace, y0 + y + yspace, color);
drawPixel(x0 - x - xspace, y0 + y + yspace, color);
drawPixel(x0 + x + xspace, y0 - y - yspace, color);
drawPixel(x0 - x - xspace, y0 - y - yspace, 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);
drawPixel(x0 + y + xspace, y0 + x + yspace, color);
drawPixel(x0 - y - xspace, y0 + x + yspace, color);
drawPixel(x0 + y + xspace, y0 - x - yspace, color);
drawPixel(x0 - y - xspace, y0 - x - yspace, color);
}
}