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Fixed whitespace before pull request.

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ben-zen
2014-09-23 21:39:06 -07:00
parent 12a9c5c2ac
commit 8ae691c4c2
1 changed files with 53 additions and 52 deletions
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105
MicroView.cpp
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@@ -604,62 +604,63 @@ void MicroView::circleFill(uint8_t x0, uint8_t y0, uint8_t radius) {
/** \brief Draw filled circle with color and mode.
Draw filled circle with radius using color and mode at x,y of the screen buffer.
Draw filled circle with radius using color and mode at x,y of the screen
buffer. Uses the Bresenham circle algorithm with a few modifications to
paint the circle without overlapping draw operations.
*/
void MicroView::circleFill(uint8_t x0, uint8_t y0, uint8_t radius, uint8_t
color, uint8_t mode) {
int8_t x = radius;
int8_t y = 0;
int8_t radiusError = 1 - x;
int8_t y_last = y0 + x;
int8_t y_low;
int8_t x_alt;
int8_t x_alt_max;
while (x >= y) {
pixel(x + x0, y + y0, color, mode);
x_alt = (x0 - x);
x_alt_max = x0 + x;
while (x_alt < x_alt_max) { // Fill the line between these two points
pixel(x_alt, y + y0, color, mode);
x_alt++;
}
if (y != x) {
pixel(y + x0, x + y0, color, mode);
pixel(y + x0, y0 - x, color, mode);
}
if (y != 0) {
pixel(x + x0, y0 - y, color, mode);
x_alt = (x0 - x);
x_alt_max = x0 + x;
while (x_alt < x_alt_max) {
pixel(x_alt, y0 - y, color, mode);
x_alt++;
}
if (y != x) {
pixel(x0 - y, x + y0, color, mode);
pixel(x0 - y, y0 - x, color, mode);
if (y_last > y0 + x) {
x_alt = x0 - y + 1;
x_alt_max = x0 + y;
y_last = y0 + x;
y_low = y0 - x;
while (x_alt < x_alt_max) {
pixel(x_alt, y_last, color, mode);
pixel(x_alt, y_low, color, mode);
x_alt++;
}
int8_t x = radius;
int8_t y = 0;
int8_t radiusError = 1 - x;
int8_t y_last = y0 + x;
int8_t y_low;
int8_t x_alt;
int8_t x_alt_max;
while (x >= y) {
pixel(x + x0, y + y0, color, mode);
x_alt = (x0 - x);
x_alt_max = x0 + x;
while (x_alt < x_alt_max) {
pixel(x_alt, y + y0, color, mode);
x_alt++;
}
if (y != x) {
pixel(y + x0, x + y0, color, mode);
pixel(y + x0, y0 - x, color, mode);
}
if (y != 0) {
pixel(x + x0, y0 - y, color, mode);
x_alt = (x0 - x);
x_alt_max = x0 + x;
while (x_alt < x_alt_max) {
pixel(x_alt, y0 - y, color, mode);
x_alt++;
}
if (y != x) {
pixel(x0 - y, x + y0, color, mode);
pixel(x0 - y, y0 - x, color, mode);
if (y_last > y0 + x) {
x_alt = x0 - y + 1;
x_alt_max = x0 + y;
y_last = y0 + x;
y_low = y0 - x;
while (x_alt < x_alt_max) {
pixel(x_alt, y_last, color, mode);
pixel(x_alt, y_low, color, mode);
x_alt++;
}
}
}
}
y++;
if (radiusError<0) {
radiusError += 2 * y + 1;
} else {
x--;
radiusError += 2 * (y - x + 1);
}
}
}
}
y++;
if (radiusError<0) {
radiusError += 2 * y + 1;
}
else {
x--;
radiusError += 2 * (y - x + 1);
}
}
}
/** \brief Get LCD height.