/// <summary>
/// 绘制 <see cref="TreeList"/> 的子项。
/// </summary>
/// <param name="e"></param>
public virtual void DrawCell(TreeListCellRenderEventArgs e)
{
var drenderer = CreateDecorationRenderer(e.Cell);
if (drenderer != null)
{
drenderer.DrawCell(e);
}
}
/// <summary>
/// 绘制指定的 <see cref="TreeListCell"/> 对象。
/// </summary>
/// <param name="e"></param>
public override void DrawCell(TreeListCellRenderEventArgs e)
{
var rect = e.Bounds;
rect.Inflate(-1, -1);
DrawProgressBackground(e.Graphics, e.Cell, rect);
if (e.Cell.Value == null)
{
return;
}
rect.Inflate(-1, -1);
var r = Convert.ToDecimal(e.Cell.Value);
rect.Width = (int)(rect.Width * r);
DrawProgressValueBar(e.Graphics, e.Cell, rect);
}
/// <summary>
/// 绘制指定的 <see cref="TreeListCell"/> 对象。
/// </summary>
/// <param name="e"></param>
public override void DrawCell(TreeListCellRenderEventArgs e)
{
if (e.Cell.Value == null)
{
return;
}
var iw = Properties.Resources.start2.Width;
var ih = Properties.Resources.start2.Height;
var l = e.Bounds.X + 2;
var t = e.Bounds.Y + (e.Bounds.Height - ih) / 2;
var r = Convert.ToDecimal(e.Cell.Value);
for (var i = 0; i < r; i++)
{
e.Graphics.DrawImage(Properties.Resources.start2, l, t);
l += iw + 4;
}
}
/// <summary>
///
/// </summary>
/// <param name="g"></param>
/// <param name="cells">要绘制的子项。</param>
/// <param name="bound"><see cref="TreeListItem"/> 的绘制范围。</param>
/// <param name="drawState">绘制状态。</param>
private void DrawCells(Graphics g, TreeListCellCollection cells, Rectangle bound, DrawState drawState)
{
var x = bound.X;
var isDrawing = false;
foreach (var cell in cells)
{
if (cell.Column.Hidden)
{
continue;
}
var rect = new Rectangle(x, bound.Top, cell.Column.Width, bound.Height);
if (!bound.IntersectsWith(rect) && isDrawing)
{
break;
}
rect.Inflate(-2, 0);
var e = new TreeListCellRenderEventArgs(cell, g, rect)
{
DrawState = drawState
};
g.KeepClip(rect, () =>
{
Renderer.DrawCell(e);
});
if (e.Cell.Item.TreeList.ShowGridLines)
{
rect.Inflate(2, 0);
Renderer.DrawCellGridLines(e.Graphics, rect);
}
x += cell.Column.Width;
isDrawing = true;
}
}
/// <summary>
/// 绘制指定的 <see cref="TreeListCell"/> 对象。
/// </summary>
/// <param name="e"></param>
public override void DrawCell(TreeListCellRenderEventArgs e)
{
var cl = e.Cell.Item.TreeList.GetColumnBound(e.Cell.Column);
switch (e.Cell.BoxType)
{
case BoxType.RadioButton:
ThemeManager.BaseRenderer.DrawRadioButton(e.Graphics, e.Bounds, e.Cell.Checked, true);
break;
case BoxType.CheckBox:
ThemeManager.BaseRenderer.DrawCheckbox(e.Graphics, e.Bounds, e.Cell.Checked, false, true);
break;
}
DrawCellText(e.Graphics, e.Cell, e.Bounds, e.DrawState);
if (!e.Cell.IsValid)
{
DrawInvalidate(e.Graphics, e.Cell, e.Bounds);
}
}
/// <summary> /// 绘制指定的 <see cref="TreeListCell"/> 对象。 /// </summary> /// <param name="e"></param> public abstract void DrawCell(TreeListCellRenderEventArgs e);
public override void DrawCell(TreeListCellRenderEventArgs e)
{
var item = e.Cell.Item;
var treeList = item.TreeList;
var rect = e.Bounds;
var plusRect = Rectangle.Empty;
var imageRect = Rectangle.Empty;
var checkRect = Rectangle.Empty;
Image image = null;
rect = rect.ReduceRight(item.Level * treeList.Indent);
if (treeList.ShowPlusMinus)
{
plusRect = new Rectangle(rect.X, rect.Top, 16, rect.Height);
rect = rect.ReduceRight(16);
}
//图标绘制区
if (item.Items.Count > 0 || item.ShowExpanded)
{
if (item.Expended)
{
image = treeList.UseDefaultNodeImage ? Resource.tree_folder_open : treeList.DefaultExpandNodeImage;
}
else if (!item.Expended || item.ShowExpanded)
{
image = treeList.UseDefaultNodeImage ? Resource.tree_folder : treeList.DefaultCollapseNodeImage;
}
}
image = image ?? e.Cell.Item.GetImage() ?? (treeList.UseDefaultNodeImage ? Resource.tree_file : treeList.DefaultImage);
//画连接线段
if (!plusRect.IsEmpty && treeList.ShowPlusMinusLines)
{
DrawItemPlusMinusLines(e.Graphics, plusRect, e.Cell.Item);
}
//画展开/收缩小图标
if (!plusRect.IsEmpty && (item.Items.Count > 0 || item.ShowExpanded))
{
DrawItemPlusMinus(e.Graphics, plusRect, item.Expended);
}
if (treeList.ShowCheckBoxes && item.ShowBox)
{
var h = (rect.Height - 15) / 2;
checkRect = new Rectangle(rect.X, rect.Top + h, 15, 15);
rect = rect.ReduceRight(17);
ThemeManager.BaseRenderer.DrawCheckbox(e.Graphics, checkRect, item.Checked, item.Mixed, item.Enabled);
}
imageRect = image == null ? Rectangle.Empty : GetItemImageRect(image, rect);
if (!imageRect.IsEmpty && image != null)
{
e.Graphics.DrawImage(image, imageRect.Middle(16, 16));
rect = rect.ReduceRight(image.Width);
}
DrawCellText(e.Graphics, e.Cell, rect, e.DrawState);
if (!e.Cell.IsValid)
{
DrawInvalidate(e.Graphics, e.Cell, e.Bounds);
}
}