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Optimize calculating column widths

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Use iterative algorithm instead of recursive one to adjust column widths.
This commit is contained in:
Artur Wieczorek
2018-12-26 10:42:17 +01:00
parent e74e345e04
commit 7f29ab97df
1 changed files with 19 additions and 34 deletions
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53
src/propgrid/propgridpagestate.cpp
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@@ -1010,33 +1010,12 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
unsigned int i;
unsigned int lastColumn = m_colWidths.size() - 1;
int width = m_width;
int clientWidth = pg->GetClientSize().x;
//
// Column to reduce, if needed. Take last one that exceeds minimum width.
int reduceCol = -1;
wxLogTrace("propgrid",
wxS("ColumnWidthCheck (virtualWidth: %i, clientWidth: %i)"),
width, clientWidth);
m_width, clientWidth);
//
// Check min sizes
for ( i=0; i<m_colWidths.size(); i++ )
{
int min = GetColumnMinWidth(i);
if ( m_colWidths[i] <= min )
{
m_colWidths[i] = min;
}
else
{
// Always reduce the last column that is larger than minimum size
// (looks nicer, even with auto-centering enabled).
reduceCol = i;
}
}
int colsWidth = pg->GetMarginWidth();
for ( i=0; i<m_colWidths.size(); i++ )
@@ -1049,31 +1028,37 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
// Then mode-based requirement
if ( !pg->HasVirtualWidth() )
{
int widthHigher = width - colsWidth;
int widthHigher = m_width - colsWidth;
// Adapt colsWidth to width
if ( colsWidth < width )
if ( colsWidth < m_width )
{
// Increase column
wxLogTrace("propgrid",
wxS(" Adjust last column to %i"),
m_colWidths[lastColumn] + widthHigher);
m_colWidths[lastColumn] = m_colWidths[lastColumn] + widthHigher;
m_colWidths[lastColumn] += widthHigher;
}
else if ( colsWidth > width )
else if ( colsWidth > m_width )
{
// Reduce column
if ( reduceCol != -1 )
widthHigher = -widthHigher;
// Always reduce the last column that is larger than minimum size
// (looks nicer, even with auto-centering enabled).
for (int reduceCol = (int)lastColumn; reduceCol >= 0 && widthHigher > 0; reduceCol--)
{
wxLogTrace("propgrid",
wxS(" Reduce column %i (by %i)"),
reduceCol, -widthHigher);
// Reduce column, if possible.
if ( m_colWidths[reduceCol] > GetColumnMinWidth(reduceCol) )
{
int d = wxMin(m_colWidths[reduceCol] - GetColumnMinWidth(reduceCol), widthHigher);
wxLogTrace("propgrid", wxS(" Reduce column %i (by %i)"), reduceCol, d);
// Reduce widest column, and recheck
m_colWidths[reduceCol] = m_colWidths[reduceCol] + widthHigher;
CheckColumnWidths();
m_colWidths[reduceCol] -= d;
colsWidth -= d;
widthHigher -= d;
}
}
m_width = colsWidth;
}
}
else
{