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Title block templates: cells widths are now adjusted to fit the total width when possible.

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/branches/0.3@1566 bfdf4180-ca20-0410-9c96-a3a8aa849046
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xavier
2012-03-13 18:01:51 +00:00
parent aa13b0a708
commit 7b6f46a26c
1 changed files with 32 additions and 3 deletions
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35
sources/titleblocktemplate.cpp
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@@ -716,7 +716,8 @@ QList<int> TitleBlockTemplate::columnsWidth(int total_width) const {
// we first iter to determine the absolute and total-width-related widths
QVector<int> final_widths(columns_width_.count());
int abs_widths_sum = 0;
int abs_widths_sum = 0, rel_widths_sum = 0;
QList<int> relative_columns;
for (int i = 0 ; i < columns_width_.count() ; ++ i) {
TitleBlockDimension icd = columns_width_.at(i);
@@ -724,7 +725,8 @@ QList<int> TitleBlockTemplate::columnsWidth(int total_width) const {
abs_widths_sum += icd.value;
final_widths[i] = icd.value;
} else if (icd.type == QET::RelativeToTotalLength) {
int abs_value = int(total_width * icd.value / 100);
int abs_value = qRound(total_width * icd.value / 100.0);
relative_columns << i;
abs_widths_sum += abs_value;
final_widths[i] = abs_value;
}
@@ -737,7 +739,34 @@ QList<int> TitleBlockTemplate::columnsWidth(int total_width) const {
for (int i = 0 ; i < columns_width_.count() ; ++ i) {
TitleBlockDimension icd = columns_width_.at(i);
if (icd.type == QET::RelativeToRemainingLength) {
final_widths[i] = int(remaining_width * icd.value / 100);
final_widths[i] = qRound(remaining_width * icd.value / 100.0);
relative_columns << i;
rel_widths_sum += final_widths[i];
}
}
// Have we computed widths from percentage for relative columns?
if (relative_columns.count()) {
// Due to the rounding process, we may get a slight difference between the
// sum of the columns widths and the total width.
int difference = total_width - abs_widths_sum - rel_widths_sum;
if (difference) {
// We consider we should not attempt to compensate this difference if it is
// under relative_columns_count * 0.5 (which means that each percent-based
// columns can "bring" up to 0.5px of difference).
qreal max_acceptable_difference = relative_columns.count() * 0.5;
int share = difference > 0 ? 1 : -1;
if (qAbs(difference) <= max_acceptable_difference) {
while (difference) {
foreach (int index, relative_columns) {
final_widths[index] += share;
difference -= share;
if (!difference) break;
}
}
}
}
}
return(final_widths.toList());