/// <summary>
/// Gets the max columns count.
/// </summary>
/// <returns>The max columns count.</returns>
/// <param name="uiElements">User interface elements.</param>
/// <param name="baseLength">Base length.</param>
/// <param name="layout">Layout.</param>
/// <param name="maxColumns">Max columns.</param>
public static int GetMaxColumnsCount(List<RectTransform> uiElements, float baseLength, EasyLayout layout, int maxColumns)
{
var length = baseLength;
var spacing = (layout.Stacking==Stackings.Horizontal) ? layout.Spacing.x : layout.Spacing.y;
bool min_columns_setted = false;
int min_columns = maxColumns;
int current_columns = 0;
foreach (var ui_element in uiElements)
{
var ui_length = layout.GetLength(ui_element);
if (current_columns==maxColumns)
{
min_columns_setted = true;
min_columns = Mathf.Min(min_columns, current_columns);
current_columns = 1;
length = baseLength - ui_length;
continue;
}
if (current_columns == 0)
{
current_columns = 1;
length = baseLength - ui_length;
continue;
}
if (length >= (ui_length + spacing))
{
length -= ui_length + spacing;
current_columns++;
}
else
{
min_columns_setted = true;
min_columns = Mathf.Min(min_columns, current_columns);
current_columns = 1;
length = baseLength - ui_length;
}
}
if (!min_columns_setted)
{
min_columns = current_columns;
}
return min_columns;
}
/// <summary>
/// Group the specified uiElements.
/// </summary>
/// <param name="uiElements">User interface elements.</param>
/// <param name="baseLength">Base length (width or height).</param>
/// <param name="layout">Layout.</param>
public static List<List<RectTransform>> Group(List<RectTransform> uiElements, float baseLength, EasyLayout layout)
{
var length = baseLength;
var spacing = (layout.Stacking==Stackings.Horizontal) ? layout.Spacing.x : layout.Spacing.y;
var group = new List<List<RectTransform>>();
var row = new List<RectTransform>();
foreach (var ui_element in uiElements)
{
var ui_length = layout.GetLength(ui_element);
if (row.Count == 0)
{
length -= ui_length;
row.Add(ui_element);
continue;
}
if (length >= (ui_length + spacing))
{
length -= ui_length + spacing;
row.Add(ui_element);
}
else
{
group.Add(row);
length = baseLength;
length -= ui_length;
row = new List<RectTransform>();
row.Add(ui_element);
}
}
if (row.Count > 0)
{
group.Add(row);
}
return group;
}
/// <summary>
/// Group the specified uiElements.
/// </summary>
/// <param name="uiElements">User interface elements.</param>
/// <param name="baseLength">Base length (width or size).</param>
/// <param name="layout">Layout.</param>
/// <param name="maxColumns">Max columns.</param>
public static List<List<RectTransform>> Group(List<RectTransform> uiElements, float baseLength, EasyLayout layout, int maxColumns=0)
{
int max_columns = 999999;
while (true)
{
var new_max_columns = GetMaxColumnsCount(uiElements, baseLength, layout, max_columns);
if ((max_columns==new_max_columns) || (new_max_columns==1))
{
max_columns = new_max_columns;
break;
}
max_columns = new_max_columns;
}
var group = new List<List<RectTransform>>();
var row = new List<RectTransform>();
int i = 0;
foreach (var ui_element in uiElements)
{
if ((i > 0) && ((i % max_columns)==0))
{
group.Add(row);
row = new List<RectTransform>();
}
row.Add(ui_element);
i++;
}
if (row.Count > 0)
{
group.Add(row);
}
return group;
}
