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-rw-r--r--src/FbTk/Container.cc29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/FbTk/Container.cc b/src/FbTk/Container.cc
index f7d5c35..0ddc421 100644
--- a/src/FbTk/Container.cc
+++ b/src/FbTk/Container.cc
@@ -386,6 +386,35 @@ void Container::repositionItems() {
386 totalDemands += buttonDemands.back(); 386 totalDemands += buttonDemands.back();
387 } 387 }
388 if (totalDemands) { 388 if (totalDemands) {
389 int overhead = totalDemands - total_width;
390 if (overhead > int(buttonDemands.size())) {
391 // try to be fair. If we're short on space and some items
392 // take > 150% of the average, we preferably shrink them, so
393 // "a" and "a very long item with useless information" won't
394 // become "a very long item with" and ""
395 overhead += buttonDemands.size(); // compensate forrounding errors
396 const int mean = totalDemands / buttonDemands.size();
397 const int thresh = 3 * mean / 2;
398 int greed = 0;
399 for (int i = 0; i < buttonDemands.size(); ++i) {
400 if (buttonDemands.at(i) > thresh)
401 greed += buttonDemands.at(i);
402 }
403 if (greed) {
404 for (int i = 0; i < buttonDemands.size(); ++i) {
405 if (buttonDemands.at(i) > thresh) {
406 int d = buttonDemands.at(i)*overhead/greed;
407 if (buttonDemands.at(i) - d > mean) {
408 buttonDemands.at(i) -= d;
409 } else { // do not shrink below mean or a huge item number would super-punish larger ones
410 d = buttonDemands.at(i) - mean;
411 buttonDemands.at(i) = mean;
412 }
413 totalDemands -= d;
414 }
415 }
416 }
417 }
389 rounding_error = total_width; 418 rounding_error = total_width;
390 for (int i = 0; i < buttonDemands.size(); ++i) { 419 for (int i = 0; i < buttonDemands.size(); ++i) {
391 rounding_error -= buttonDemands.at(i)*total_width/totalDemands; 420 rounding_error -= buttonDemands.at(i)*total_width/totalDemands;