private static void StackColumns(int width, ColumnSizingParameters parameters)
{
//the columns do not fit, so start stacking until they do.
parameters.StackSizer = new PropertyStackColumnSizer();
ColumnWidthNegotiator.ColumnSizerInfo lastColumn;
while ((lastColumn = parameters.Sizers.LastOrDefault()) != null)
{
parameters.StackSizer.AddColumn(lastColumn.PropertyColumnFormat, lastColumn.Sizer.Values);
parameters.Sizers.Remove(lastColumn);
parameters.Columns.Remove(lastColumn.PropertyColumnFormat);
var seperatorOverhead = parameters.Sizers.Count * parameters.SeperatorLength; //all columns in sizer list need seperator.
if (MinPossibleWidth(seperatorOverhead, parameters) <= width)
break;
}
if (parameters.Sizers.Any())
{
FitColumns(width, parameters.Sizers.Count * parameters.SeperatorLength, parameters);
parameters.StackedColumnWidth = parameters.StackSizer.GetMinWidth(parameters.TabLength);
}
else
parameters.StackedColumnWidth = width;
}
public static void Size(int width, int seperatorOverhead, ColumnSizingParameters parameters)
{
var nonProportionalColumnTotalWidth = parameters.Sizers.Where(s => !s.WidthIsProportional()).Sum(s => s.PropertyColumnFormat.Format.ActualWidth);
var proportionalColumns = parameters.Sizers.Where(s => s.WidthIsProportional()).ToList();
var availableWidth = width - seperatorOverhead - nonProportionalColumnTotalWidth - parameters.StackedColumnWidth;
var totalProportions = proportionalColumns.Sum(s => s.PropertyColumnFormat.Format.ProportionalWidth);
var proportions = proportionalColumns
.Select(s => new { ProportionalWidthCalc = MakeProportionalWidth(availableWidth, totalProportions, s.PropertyColumnFormat.Format), s.PropertyColumnFormat.Format})
.Select(s => new { ProportionalWidth = s.ProportionalWidthCalc.Item1, s.Format, ExcessWidth = s.ProportionalWidthCalc.Item2 })
.OrderByDescending(s => s.Format.ProportionalWidth)
.ToList();
var availableCharacters = availableWidth - proportions.Sum(p => p.ProportionalWidth);
var adjuster = availableCharacters < 0 ? -1 : 1;
while (availableCharacters != 0)
{
var current = proportions.First(c => c.ProportionalWidth + adjuster > 1);
proportions.Remove(current);
if (current.ExcessWidth > 0 && adjuster > 0)
proportions.Add(new { current.ProportionalWidth, current.Format, ExcessWidth = current.ExcessWidth - adjuster});
else if (current.ExcessWidth == 0 && (current.Format.MaxWidth == 0 || current.ProportionalWidth + adjuster <= current.Format.MaxWidth))
{
proportions.Add(new { ProportionalWidth = current.ProportionalWidth + adjuster, current.Format, current.ExcessWidth});
availableCharacters -= adjuster;
}
else
proportions.Add(current);
}
foreach(var col in proportions)
col.Format.SetActualWidth(col.ProportionalWidth);
}
public static void ShrinkColumns(int width, int seperatorOverhead, ColumnSizingParameters parameters)
{
var minPossibleWidth = MinPossibleWidth(seperatorOverhead, parameters);
if (minPossibleWidth > width)
StackColumns(width, parameters);
else
{
FitColumns(width, seperatorOverhead, parameters);
}
}
/// <summary>
/// Perform the stretch operation. This method takes any stacked columns into account.
/// </summary>
/// <param name="width">The available width.</param>
/// <param name="seperatorOverhead">The amount of space occupied by column seperators.</param>
/// <param name="parameters">The column sizing parameters for this operation.</param>
/// <param name="maximiseWidth">True to systematically use all of the available width when sizing the columns.</param>
public static void FillAvailableSpace(int width, int seperatorOverhead, ColumnSizingParameters parameters, bool maximiseWidth)
{
var columnPriorityList = parameters.Sizers.Where(s => s.PropertyColumnFormat.Format.DetermineWidthFromData()).ToList();
while (CurrentWidth(seperatorOverhead, parameters.Sizers, parameters.StackedColumnWidth) < width)
{
if (!WidenBasedOnLineBreaks(columnPriorityList)
&& !WidenBasedOnMaximumWidth(columnPriorityList, maximiseWidth)
&& (!maximiseWidth || !WidenUnrestrictedColumns(columnPriorityList)))
break;
}
}
private static void FitColumns(int width, int seperatorOverhead, ColumnSizingParameters parameters)
{
if (!parameters.Sizers.Any()) return;
var minStackWidth = (parameters.StackSizer == null ? 0 : parameters.StackSizer.GetMinWidth(parameters.TabLength));
var linebreaks = 0;
do
{
var widths = parameters.Sizers
.Select(s => new { Sizer = s, Width = Math.Max(s.Sizer.MinWidth(linebreaks), s.Sizer.GetIdealMinimumWidth()) })
.ToList();
var totalWidth = widths.Sum(w => w.Width);
if (totalWidth <= width - seperatorOverhead - minStackWidth)
{
foreach (var propWidth in widths)
{
propWidth.Sizer.PropertyColumnFormat.Format.SetActualWidth(propWidth.Width);
}
break;
}
linebreaks++;
} while (true);
}
public void SetUp()
{
_parameters = new ColumnSizingParameters();
_parameters.TabLength = 4;
_parameters.SeperatorLength = 1;
}
public void SetUp()
{
_data = Enumerable.Range(0, 5)
.Select(i => new TestType("AAAA" + i, "AAAAAAA AAAAAAAA AAAAAAAA"))
.ToList();
_parameters = new ColumnSizingParameters();
_parameters.Columns = FormatAnalyser.Analyse(typeof(TestType), null, true);
_parameters.Sizers = _parameters.Columns.Select(f => new ColumnWidthNegotiator.ColumnSizerInfo(f, 4)).ToList();
_parameters.TabLength = 4;
_parameters.SeperatorLength = 1;
ImportSizeData();
_seperatorOverhead = 3;
const int defaultWidth = 26;
ColumnShrinker.ShrinkColumns(defaultWidth, _seperatorOverhead, _parameters);
CreateInitialReport(defaultWidth);
}
private static int MinPossibleWidth(int seperatorOverhead, ColumnSizingParameters parameters)
{
var minStackWidth = parameters.StackSizer != null ? parameters.StackSizer.GetMinWidth(parameters.TabLength) : 0;
var minPossibleWidth = parameters.Sizers.Sum(s => s.Sizer.GetIdealMinimumWidth()) + seperatorOverhead + minStackWidth;
return minPossibleWidth;
}