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This commit is contained in:
Ilia Alshanetsky
2003-03-30 20:48:14 +00:00
parent 9daf234fef
commit 334da52d65
1 changed files with 63 additions and 77 deletions
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140
ext/gd/libgd/gd.c
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@@ -1723,90 +1723,76 @@ void gdImageFilledEllipse (gdImagePtr im, int mx, int my, int w, int h, int c)
}
}
void
gdImageFillToBorder (gdImagePtr im, int x, int y, int border, int color)
void gdImageFillToBorder (gdImagePtr im, int x, int y, int border, int color)
{
int lastBorder;
/* Seek left */
int leftLimit, rightLimit;
int i;
leftLimit = (-1);
if (border < 0)
{
/* Refuse to fill to a non-solid border */
return;
}
for (i = x; (i >= 0); i--)
{
if (gdImageGetPixel (im, i, y) == border)
{
break;
int lastBorder;
/* Seek left */
int leftLimit = -1, rightLimit;
int i;
if (border < 0) {
/* Refuse to fill to a non-solid border */
return;
}
gdImageSetPixel (im, i, y, color);
leftLimit = i;
}
if (leftLimit == (-1))
{
return;
}
/* Seek right */
rightLimit = x;
for (i = (x + 1); (i < im->sx); i++)
{
if (gdImageGetPixel (im, i, y) == border)
{
break;
if (x >= im->sx) {
x = im->sx - 1;
}
gdImageSetPixel (im, i, y, color);
rightLimit = i;
}
/* Look at lines above and below and start paints */
/* Above */
if (y > 0)
{
lastBorder = 1;
for (i = leftLimit; (i <= rightLimit); i++)
{
int c;
c = gdImageGetPixel (im, i, y - 1);
if (lastBorder)
{
if ((c != border) && (c != color))
{
gdImageFillToBorder (im, i, y - 1,
border, color);
lastBorder = 0;
if (y >= im->sy) {
y = im->sy - 1;
}
for (i = x; i >= 0; i--) {
if (gdImageGetPixel(im, i, y) == border) {
break;
}
}
else if ((c == border) || (c == color))
{
lastBorder = 1;
}
gdImageSetPixel(im, i, y, color);
leftLimit = i;
}
}
/* Below */
if (y < ((im->sy) - 1))
{
lastBorder = 1;
for (i = leftLimit; (i <= rightLimit); i++)
{
int c;
c = gdImageGetPixel (im, i, y + 1);
if (lastBorder)
{
if ((c != border) && (c != color))
{
gdImageFillToBorder (im, i, y + 1,
border, color);
lastBorder = 0;
if (leftLimit == -1) {
return;
}
/* Seek right */
rightLimit = x;
for (i = (x + 1); i < im->sx; i++) {
if (gdImageGetPixel(im, i, y) == border) {
break;
}
gdImageSetPixel(im, i, y, color);
rightLimit = i;
}
/* Look at lines above and below and start paints */
/* Above */
if (y > 0) {
lastBorder = 1;
for (i = leftLimit; i <= rightLimit; i++) {
int c = gdImageGetPixel(im, i, y - 1);
if (lastBorder) {
if ((c != border) && (c != color)) {
gdImageFillToBorder(im, i, y - 1, border, color);
lastBorder = 0;
}
} else if ((c == border) || (c == color)) {
lastBorder = 1;
}
}
}
/* Below */
if (y < ((im->sy) - 1)) {
lastBorder = 1;
for (i = leftLimit; i <= rightLimit; i++) {
int c = gdImageGetPixel(im, i, y + 1);
if (lastBorder) {
if ((c != border) && (c != color)) {
gdImageFillToBorder(im, i, y + 1, border, color);
lastBorder = 0;
}
} else if ((c == border) || (c == color)) {
lastBorder = 1;
}
}
}
else if ((c == border) || (c == color))
{
lastBorder = 1;
}
}
}
}
void