Merged in rahul_raman/unity-ui-extensions (pull request #36)
New TableLayoutGroup Component --HG-- branch : develop_5.3pull/413/head
Simon Jackson
commit
473c0f3757
|
|
@ -0,0 +1,290 @@
|
|||
/// Credit RahulOfTheRamanEffect
|
||||
/// Sourced from - https://forum.unity3d.com/members/rahuloftheramaneffect.773241/
|
||||
|
||||
namespace UnityEngine.UI.Extensions
|
||||
{
|
||||
/// <summary>
|
||||
/// Arranges child objects into a non-uniform grid, with fixed column widths and flexible row heights
|
||||
/// </summary>
|
||||
public class TableLayoutGroup : LayoutGroup
|
||||
{
|
||||
public enum Corner
|
||||
{
|
||||
UpperLeft = 0,
|
||||
UpperRight = 1,
|
||||
LowerLeft = 2,
|
||||
LowerRight = 3
|
||||
}
|
||||
|
||||
[SerializeField]
|
||||
protected Corner startCorner = Corner.UpperLeft;
|
||||
/// <summary>
|
||||
/// The corner starting from which the cells should be arranged
|
||||
/// </summary>
|
||||
public Corner StartCorner
|
||||
{
|
||||
get { return startCorner; }
|
||||
set
|
||||
{
|
||||
SetProperty(ref startCorner, value);
|
||||
}
|
||||
}
|
||||
|
||||
[SerializeField]
|
||||
protected float[] columnWidths = new float[1] { 96f };
|
||||
/// <summary>
|
||||
/// The widths of all the columns in the table
|
||||
/// </summary>
|
||||
public float[] ColumnWidths
|
||||
{
|
||||
get { return columnWidths; }
|
||||
set
|
||||
{
|
||||
SetProperty(ref columnWidths, value);
|
||||
}
|
||||
}
|
||||
|
||||
[SerializeField]
|
||||
protected float minimumRowHeight = 32f;
|
||||
/// <summary>
|
||||
/// The minimum height for any row in the table
|
||||
/// </summary>
|
||||
public float MinimumRowHeight
|
||||
{
|
||||
get { return minimumRowHeight; }
|
||||
set
|
||||
{
|
||||
SetProperty(ref minimumRowHeight, value);
|
||||
}
|
||||
}
|
||||
|
||||
[SerializeField]
|
||||
protected bool flexibleRowHeight = true;
|
||||
/// <summary>
|
||||
/// Expand rows to fit the cell with the highest preferred height?
|
||||
/// </summary>
|
||||
public bool FlexibleRowHeight
|
||||
{
|
||||
get { return flexibleRowHeight; }
|
||||
set
|
||||
{
|
||||
SetProperty(ref flexibleRowHeight, value);
|
||||
}
|
||||
}
|
||||
|
||||
[SerializeField]
|
||||
protected float columnSpacing = 0f;
|
||||
/// <summary>
|
||||
/// The horizontal spacing between each cell in the table
|
||||
/// </summary>
|
||||
public float ColumnSpacing
|
||||
{
|
||||
get { return columnSpacing; }
|
||||
set
|
||||
{
|
||||
SetProperty(ref columnSpacing, value);
|
||||
}
|
||||
}
|
||||
|
||||
[SerializeField]
|
||||
protected float rowSpacing = 0;
|
||||
/// <summary>
|
||||
/// The vertical spacing between each row in the table
|
||||
/// </summary>
|
||||
public float RowSpacing
|
||||
{
|
||||
get { return rowSpacing; }
|
||||
set
|
||||
{
|
||||
SetProperty(ref rowSpacing, value);
|
||||
}
|
||||
}
|
||||
|
||||
// Temporarily stores data generated during the execution CalculateLayoutInputVertical for use in SetLayoutVertical
|
||||
private float[] preferredRowHeights;
|
||||
|
||||
public override void CalculateLayoutInputHorizontal()
|
||||
{
|
||||
base.CalculateLayoutInputHorizontal();
|
||||
|
||||
float horizontalSize = padding.horizontal;
|
||||
|
||||
// We calculate the actual cell count for cases where the number of children is lesser than the number of columns
|
||||
int actualCellCount = Mathf.Min(rectChildren.Count, columnWidths.Length);
|
||||
|
||||
for (int i = 0; i < actualCellCount; i++)
|
||||
{
|
||||
horizontalSize += columnWidths[i];
|
||||
horizontalSize += columnSpacing;
|
||||
}
|
||||
|
||||
horizontalSize -= columnSpacing;
|
||||
|
||||
SetLayoutInputForAxis(horizontalSize, horizontalSize, 0, 0);
|
||||
}
|
||||
|
||||
public override void CalculateLayoutInputVertical()
|
||||
{
|
||||
int columnCount = columnWidths.Length;
|
||||
int rowCount = Mathf.CeilToInt(rectChildren.Count / (float)columnCount);
|
||||
|
||||
preferredRowHeights = new float[rowCount];
|
||||
|
||||
float totalMinHeight = padding.vertical;
|
||||
float totalPreferredHeight = padding.vertical;
|
||||
|
||||
if (rowCount > 1)
|
||||
{
|
||||
float heightFromSpacing = ((rowCount - 1) * rowSpacing);
|
||||
totalMinHeight += heightFromSpacing;
|
||||
totalPreferredHeight += heightFromSpacing;
|
||||
}
|
||||
|
||||
if (flexibleRowHeight)
|
||||
{
|
||||
// If flexibleRowHeight is enabled, find the max value for minimum and preferred heights in each row
|
||||
|
||||
float maxMinimumHeightInRow = 0;
|
||||
float maxPreferredHeightInRow = 0;
|
||||
|
||||
for (int i = 0; i < rectChildren.Count; i++)
|
||||
{
|
||||
int currentRowIndex = i / columnCount;
|
||||
int currentColumnIndex = i % columnCount;
|
||||
|
||||
// If it's the first cell in the row, reset heights for the row
|
||||
if (currentColumnIndex == 0)
|
||||
{
|
||||
maxMinimumHeightInRow = minimumRowHeight;
|
||||
maxPreferredHeightInRow = minimumRowHeight;
|
||||
}
|
||||
|
||||
maxPreferredHeightInRow = Mathf.Max(LayoutUtility.GetPreferredHeight(rectChildren[i]), maxPreferredHeightInRow);
|
||||
maxMinimumHeightInRow = Mathf.Max(LayoutUtility.GetMinHeight(rectChildren[i]), maxMinimumHeightInRow);
|
||||
|
||||
// If it's the last cell in the row, or if it's the last cell and the row is incomplete, set calculated heights
|
||||
if (currentColumnIndex == columnCount - 1 || (i == rectChildren.Count - 1 && currentRowIndex == rowCount - 1))
|
||||
{
|
||||
totalMinHeight += maxMinimumHeightInRow;
|
||||
totalPreferredHeight += maxPreferredHeightInRow;
|
||||
|
||||
// Add calculated row height to a commonly accessible array for reuse in SetLayoutVertical()
|
||||
preferredRowHeights[currentRowIndex] = maxPreferredHeightInRow;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// If flexibleRowHeight is disabled, then use the minimumRowHeight to calculate vertical layout information
|
||||
for (int i = 0; i < rowCount; i++)
|
||||
preferredRowHeights[i] = minimumRowHeight;
|
||||
|
||||
totalMinHeight += rowCount * minimumRowHeight;
|
||||
totalPreferredHeight = totalMinHeight;
|
||||
}
|
||||
|
||||
totalPreferredHeight = Mathf.Max(totalMinHeight, totalPreferredHeight);
|
||||
SetLayoutInputForAxis(totalMinHeight, totalPreferredHeight, 1, 1);
|
||||
}
|
||||
|
||||
public override void SetLayoutHorizontal()
|
||||
{
|
||||
// If no column width is defined, then assign a reasonable default
|
||||
if (columnWidths.Length == 0)
|
||||
columnWidths = new float[1] { 0f };
|
||||
|
||||
int columnCount = columnWidths.Length;
|
||||
int cornerX = (int)startCorner % 2;
|
||||
|
||||
float startOffset = 0;
|
||||
float requiredSizeWithoutPadding = 0;
|
||||
|
||||
// We calculate the actual cell count for cases where the number of children is lesser than the number of columns
|
||||
int actualCellCount = Mathf.Min(rectChildren.Count, columnWidths.Length);
|
||||
|
||||
for (int i = 0; i < actualCellCount; i++)
|
||||
{
|
||||
requiredSizeWithoutPadding += columnWidths[i];
|
||||
requiredSizeWithoutPadding += columnSpacing;
|
||||
}
|
||||
|
||||
requiredSizeWithoutPadding -= columnSpacing;
|
||||
|
||||
startOffset = GetStartOffset(0, requiredSizeWithoutPadding);
|
||||
|
||||
if (cornerX == 1)
|
||||
startOffset += requiredSizeWithoutPadding;
|
||||
|
||||
float positionX = startOffset;
|
||||
|
||||
for (int i = 0; i < rectChildren.Count; i++)
|
||||
{
|
||||
int currentColumnIndex = i % columnCount;
|
||||
|
||||
// If it's the first cell in the row, reset positionX
|
||||
if (currentColumnIndex == 0)
|
||||
positionX = startOffset;
|
||||
|
||||
if (cornerX == 1)
|
||||
positionX -= columnWidths[currentColumnIndex];
|
||||
|
||||
SetChildAlongAxis(rectChildren[i], 0, positionX, columnWidths[currentColumnIndex]);
|
||||
|
||||
if (cornerX == 1)
|
||||
positionX -= columnSpacing;
|
||||
else
|
||||
positionX += columnWidths[currentColumnIndex] + columnSpacing;
|
||||
}
|
||||
}
|
||||
|
||||
public override void SetLayoutVertical()
|
||||
{
|
||||
int columnCount = columnWidths.Length;
|
||||
int rowCount = preferredRowHeights.Length;
|
||||
|
||||
int cornerY = (int)startCorner / 2;
|
||||
|
||||
float startOffset = 0;
|
||||
float requiredSizeWithoutPadding = 0;
|
||||
|
||||
for (int i = 0; i < rowCount; i++)
|
||||
{
|
||||
requiredSizeWithoutPadding += preferredRowHeights[i];
|
||||
requiredSizeWithoutPadding += rowSpacing;
|
||||
}
|
||||
|
||||
requiredSizeWithoutPadding -= rowSpacing;
|
||||
|
||||
startOffset = GetStartOffset(1, requiredSizeWithoutPadding);
|
||||
|
||||
if (cornerY == 1)
|
||||
startOffset += requiredSizeWithoutPadding;
|
||||
|
||||
float positionY = startOffset;
|
||||
|
||||
for (int i = 0; i < rectChildren.Count; i++)
|
||||
{
|
||||
int currentRowIndex = i / columnCount;
|
||||
int currentColumnIndex = i % columnCount;
|
||||
|
||||
// If it's the first cell in the row and start corner is one of the bottom corners, then modify positionY appropriately
|
||||
if (currentColumnIndex == 0 && cornerY == 1)
|
||||
positionY -= preferredRowHeights[currentRowIndex];
|
||||
|
||||
SetChildAlongAxis(rectChildren[i], 1, positionY, preferredRowHeights[currentRowIndex]);
|
||||
|
||||
// If it's the first last cell in the row, then modify positionY appropriately
|
||||
if (currentColumnIndex == columnCount - 1)
|
||||
{
|
||||
if (cornerY == 1)
|
||||
positionY -= rowSpacing;
|
||||
else
|
||||
positionY += preferredRowHeights[currentRowIndex] + rowSpacing;
|
||||
}
|
||||
}
|
||||
|
||||
// Set preferredRowHeights to null to free memory
|
||||
preferredRowHeights = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue