private void LoopCellsHorizontal()
{
for (int i = 0; i < column; i++)
{
ListCellBase firstCellOfThisColumn = cells[i * row + 0];
int columnNumOfThisColumn = firstCellOfThisColumn.index / row;
int newColumnNum = columnNumOfThisColumn;
if (columnNumOfThisColumn < currentColumn)
{
newColumnNum += column * ((currentColumn - columnNumOfThisColumn) / column + 1);
}
else if (columnNumOfThisColumn >= currentColumn + column)
{
newColumnNum -= column * ((columnNumOfThisColumn - currentColumn) / column);
}
if (newColumnNum != columnNumOfThisColumn)
{
for (int j = 0; j < row; j++)
{
ListCellBase cell = cells[i * row + j];
cell.index = newColumnNum * row + j;
cell.rectTrans.anchoredPosition = new Vector2(newColumnNum * width_cell, -j * height_cell);
object data = (cell.index >= 0 && cell.index < datas.Count) ? datas[cell.index] : null;
cell.SetData(data);
cell.SetSelected(cell.index == currentSelectedIndex);
}
}
}
}
private void LoopCellsVertical()
{
for (int i = 0; i < row; i++)
{
ListCellBase firstCellOfThisRow = cells[i * column + 0];
int rowNumOfThisRow = firstCellOfThisRow.index / column;
int newRowNum = rowNumOfThisRow;
if (rowNumOfThisRow < currentRow)
{
newRowNum += row * ((currentRow - rowNumOfThisRow) / row + 1); // 中间隔的页数 * 每页行数
}
else if (rowNumOfThisRow >= currentRow + row) // 下一页 或 之后的页
{
newRowNum -= row * ((rowNumOfThisRow - currentRow) / row); // 隔的页数 * 每页行数
}
if (newRowNum != rowNumOfThisRow)
{
for (int j = 0; j < column; j++)
{
ListCellBase cell = cells[i * column + j];
cell.index = newRowNum * column + j;
cell.rectTrans.anchoredPosition = new Vector2(j * width_cell, -newRowNum * height_cell);
object data = (cell.index >= 0 && cell.index < datas.Count) ? datas[cell.index] : null;
cell.SetData(data);
cell.SetSelected(cell.index == currentSelectedIndex);
}
}
}
}
public void UpdateAllCells()
{
for (int i = 0; i < cells.Count; i++)
{
ListCellBase cell = cells[i];
object data = (cell.index >= 0 && cell.index < datas.Count) ? datas[cell.index] : null;
cell.SetData(data);
cell.SetSelected(cell.index == currentSelectedIndex);
}
}
private void InitCells()
{
if (vertical)
{
for (int i = 0; i < row; i++)
{
for (int j = 0; j < column; j++)
{
ListCellBase cell = cells[i * column + j];
cell.index = i * column + j;
cell.rectTrans.anchoredPosition = new Vector2(j * width_cell, -i * height_cell);
object data = (cell.index >= 0 && cell.index < datas.Count) ? datas[cell.index] : null;
cell.SetData(data);
cell.SetSelected(false);
}
}
}
else
{
for (int i = 0; i < column; i++)
{
for (int j = 0; j < row; j++)
{
ListCellBase cell = cells[i * row + j];
cell.index = i * row + j;
cell.rectTrans.anchoredPosition = new Vector2(i * width_cell, -j * height_cell);
object data = (cell.index >= 0 && cell.index < datas.Count) ? datas[cell.index] : null;
cell.SetData(data);
cell.SetSelected(false);
}
}
}
currentSelectedIndex = -1;
}
// Initialize
public void SetUp()
{
rectTransform = transform as RectTransform;
// scrollrect
scrollRect = GetComponent <ScrollRect>();
if (scrollRect == null)
{
scrollRect = gameObject.AddComponent <ScrollRect>();
}
scrollRect.onValueChanged.AddListener(OnValueChanged);
// content
Transform contentTrans = transform.FindChild("content");
if (contentTrans == null)
{
contentTrans = new GameObject("content", typeof(RectTransform)).transform;
contentTrans.SetParent(transform, false);
}
content = contentTrans as RectTransform;
content.anchorMax = new Vector2(0, 1);
content.anchorMin = new Vector2(0, 1);
content.pivot = new Vector2(0, 1);
content.anchoredPosition = Vector2.zero;
scrollRect.content = content;
scrollRect.vertical = vertical;
scrollRect.horizontal = !vertical;
// rect2D mask
if (transform.GetComponent <RectMask2D>() == null)
{
gameObject.AddComponent <RectMask2D>();
}
// canvasGroup
if (gameObject.GetComponent <CanvasGroup>() == null)
{
gameObject.AddComponent <CanvasGroup>();
}
// height width
height_scroll = rectTransform.rect.height;
height_cell = cellPrefab.rect.height;
width_scroll = rectTransform.rect.width;
width_cell = cellPrefab.rect.width;
// row and column
if (vertical)
{
row = Mathf.CeilToInt(height_scroll / height_cell) + 1;
column = Mathf.Clamp(column, 1, Mathf.FloorToInt(width_scroll / width_cell));
}
else
{
row = Mathf.Clamp(row, 1, Mathf.FloorToInt(height_scroll / height_cell));
column = Mathf.CeilToInt(width_scroll / width_cell) + 1;
}
// create cells
if (cells.Count == 0)
{
for (int i = 0; i < row; i++)
{
for (int j = 0; j < column; j++)
{
GameObject clone = Instantiate <GameObject>(cellPrefab.gameObject);
RectTransform rectTrans = clone.GetComponent <RectTransform>();
rectTrans.SetParent(content, false);
rectTrans.localScale = Vector3.one;
rectTrans.anchorMax = new Vector2(0, 1);
rectTrans.anchorMin = new Vector2(0, 1);
rectTrans.pivot = new Vector2(0, 1);
ListCellBase cell = clone.GetComponent <ListCellBase>();
cell.onClicked = OnCellClicked;
cells.Add(cell);
}
}
}
cellPrefab.gameObject.SetActive(false);
}
