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fix #602 : shape selection fails with some colors

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juliandescottes 2017-01-13 02:59:59 +01:00
parent 33259e5522
commit 0abd779348
1 changed files with 18 additions and 7 deletions
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25
src/js/utils/PixelUtils.js
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@ -60,14 +60,25 @@
* @return an array of the pixel coordinates paint with the replacement color
*/
getSimilarConnectedPixelsFromFrame: function(frame, col, row) {
// To get the list of connected (eg the same color) pixels, we will use the paintbucket algorithm
// in a fake cloned frame. The returned pixels by the paintbucket algo are the painted pixels
// and are as well connected.
var fakeFrame = frame.clone(); // We just want to
var fakeFillColor = 'sdfsdfsdf'; // A fake color that will never match a real color.
var paintedPixels = this.paintSimilarConnectedPixelsFromFrame(fakeFrame, col, row, fakeFillColor);
var targetColor = frame.getPixel(col, row);
if (targetColor === null) {
return;
}
return paintedPixels;
var startPixel = {
col : col,
row : row
};
var visited = {};
return pskl.PixelUtils.visitConnectedPixels(startPixel, frame, function (pixel) {
var key = pixel.col + '-' + pixel.row;
if (visited[key]) {
return false;
}
visited[key] = true;
return frame.getPixel(pixel.col, pixel.row) == targetColor;
});
},
/**