/// <summary>
/// Initialize the layout grid.
/// </summary>
/// <param name="gui">The GUI that this layout will be a part of.</param>
/// <param name="position">The position of this layout.</param>
/// <param name="height">The height of this layout.</param>
/// <param name="width">The width of this layout.</param>
private void Initialize(GraphicalUserInterface gui, Vector2 position, float width, float height)
{
//Initialize some variables.
_GUI = gui;
_IsEnabled = true;
_Position = position;
_Width = width;
_Height = height;
_MaxColumns = 3;
_MaxRows = 12;
_Padding = 5;
_Margin = 5;
_Grid = new LayoutCell[_MaxColumns, _MaxRows];
_SizeStyle = LayoutSizeStyle.Evenly;
_LayoutFlow = LayoutFlowStyle.Vertically;
_VerticalAlignment = LayoutVerticalAlignment.TopDown;
_HorizontalAlignment = LayoutHorizontalAlignment.LeftToRight;
_IsDirty = false;
}
/// <summary>
/// Get the available space for a row or column based upon padding, margin, the number of elements and their current size.
/// </summary>
/// <param name="index">The index of the row or column.</param>
/// <param name="structure">Whether it is a row or column we are checking.</param>
/// <param name="sizeStyle">Whether we want to distribute the available size evenly or to the cell first in line.</param>
/// <returns>The amount of 'free' space available for the given row or column.</returns>
private float GetAvailableSpace(int index, LayoutStructure structure, LayoutSizeStyle sizeStyle)
{
//Whether to check a row or column.
switch (structure)
{
case (LayoutStructure.Row):
{
//The space available.
float available = AvailableWidth - ((RowCount(index) - 1) * _Margin);
//Subtract the width of all cells.
if (sizeStyle == LayoutSizeStyle.FirstInLine)
{
for (int x = 0; x < _Grid.GetLength(0); x++) { if (_Grid[x, index] != null) { available -= _Grid[x, index].GoalWidth; } }
}
//Return the available space.
return available;
}
case (LayoutStructure.Column):
{
//The space available.
float available = AvailableHeight - ((ColumnCount(index) - 1) * _Margin);
//Subtract the height of all cells.
if (sizeStyle == LayoutSizeStyle.FirstInLine)
{
for (int y = 0; y < _Grid.GetLength(1); y++) { if (_Grid[index, y] != null) { available -= _Grid[index, y].GoalHeight; } }
}
//Return the available space.
return available;
}
default: { return 0; }
}
}
