/// <summary>
/// 将 <paramref name="cell"/> 置于编辑状态。
/// </summary>
/// <param name="cell">要编辑的单元格。</param>
/// <param name="rect">编辑器放置的位置。</param>
public void BeginEdit(TreeListCell cell, Rectangle rect)
{
Guard.ArgumentNull(cell, "cell");
if (IsEditing && cell == Cell)
{
return;
}
rect.Inflate(-1, -1);
AcceptEdit();
if (!cell.Column.Editable || cell.Column.Editor == null)
{
return;
}
editor = cell.Column.Editor;
Cell = cell;
var control = (Control)editor;
treelist.Controls.Add(control);
IsEditing = true;
editor.Controller = this;
editor.SetValue(cell.Value);
editor.Show(rect);
}
internal void Show(TreeListCell cell, Rectangle rect)
{
Initialize(cell);
inner.Show(cell.Text, treelist, rect.X - 2, rect.Y + (rect.Height - size.Height - 2) / 2 + 1);
IsShow = true;
}
private void Initialize(TreeListCell cell)
{
if (inner != null)
{
inner.Dispose();
}
var font = cell.Column.Font ?? cell.Column.TreeList.Font;
size = TextRenderer.MeasureText(cell.Text, font);
size.Height += 8;
size.Width += 6;
inner = new ToolTip();
inner.ToolTipTitle = "dfdsafafd";
inner.OwnerDraw = true;
inner.Popup += (o, e) =>
{
e.ToolTipSize = size;
};
inner.Draw += (o, e) =>
{
var flags = TextFormatFlags.VerticalCenter;
var r = e.Bounds;
r.Offset(3, 0);
using (var br = new LinearGradientBrush(e.Bounds, Color.White, Color.LightGray, 90))
{
e.Graphics.FillRectangle(SystemBrushes.Window, e.Bounds);
}
e.DrawBorder();
TextRenderer.DrawText(e.Graphics, cell.Text, font, r, Color.Black, flags);
};
}
protected internal void RaiseAfterCellEditedEvent(TreeListCell cell, bool enterKey)
{
var e = new TreeListAfterCellEditedEventArgs {
Cell = cell, EnterKey = enterKey
};
OnAfterCellEdited(e);
}
protected internal void RaiseCellDataBoundEvent(TreeListCell cell, object data, object value)
{
var e = new TreeListCellDataBoundEventArgs {
Cell = cell, ItemData = data, Value = value
};
OnCellDataBound(e);
}
protected internal void RaiseAfterCellCheckChangeEvent(TreeListCell cell)
{
var e = new TreeListCellEventArgs {
Cell = cell
};
OnAfterCellCheckChange(e);
}
protected internal void RaiseCellClickEvent(TreeListCell cell)
{
var e = new TreeListCellEventArgs {
Cell = cell
};
OnCellClick(e);
}
protected internal bool RaiseBeforeCellEditingEvent(TreeListCell cell)
{
var e = new TreeListBeforeCellEditingEventArgs {
Cell = cell
};
OnBeforeCellEditing(e);
return(e.Cancel);
}
protected internal bool RaiseBeforeCellCheckChangeEvent(TreeListCell cell)
{
var e = new TreeListCellCancelEventArgs {
Cell = cell
};
OnBeforeCellCheckChange(e);
return(e.Cancel);
}
protected internal bool RaiseAfterCellUpdatedEvent(TreeListCell cell, object oldValue, object newValue, bool enterKey)
{
var e = new TreeListAfterCellUpdatedEventArgs {
Cell = cell, OldValue = oldValue, NewValue = newValue, EnterKey = enterKey
};
OnAfterCellUpdated(e);
return(e.EnterKey);
}
protected internal bool RaiseBeforeCellUpdatingEvent(TreeListCell cell, object oldValue, ref object newValue)
{
var e = new TreeListBeforeCellUpdatingEventArgs {
Cell = cell, OldValue = oldValue, NewValue = newValue
};
OnBeforeCellUpdating(e);
newValue = e.NewValue;
return(e.Cancel);
}
private string GetDrawingText(TreeListCell cell, out bool isNullText)
{
var cellText = cell.Text;
if (string.IsNullOrEmpty(cellText) && !string.IsNullOrEmpty(cell.NullText))
{
isNullText = true;
return(cell.NullText);
}
isNullText = false;
return(cellText);
}
protected virtual TreeListDecorationRenderer CreateDecorationRenderer(TreeListCell cell)
{
if (cell.Column.Index == 0)
{
return(new TreeListIdentityDecorationRenderer());
}
else if (cell.Column.DataType == TreeListCellDataType.Boolean)
{
return(new TreeListBooleanDecorationRenderer());
}
else
{
return(new TreeListDefaultDecorationRenderer());
}
}
/// <summary>
/// 根据 <see cref="TreeListCell"/> 的值绘制进度条。
/// </summary>
/// <param name="graphics"></param>
/// <param name="cell"></param>
/// <param name="rect"></param>
private void DrawProgressValueBar(Graphics graphics, TreeListCell cell, Rectangle rect)
{
if (Application.RenderWithVisualStyles)
{
var element = VisualStyleElement.ProgressBar.Chunk.Normal;
if (VisualStyleRenderer.IsElementDefined(element))
{
new VisualStyleRenderer(element).DrawBackground(graphics, rect);
return;
}
}
rect.Inflate(-1, -1);
graphics.FillRectangle(SystemBrushes.Highlight, rect);
}
/// <summary>
/// 绘制进度条的背景。
/// </summary>
/// <param name="graphics"></param>
/// <param name="cell"></param>
/// <param name="rect"></param>
private void DrawProgressBackground(Graphics graphics, TreeListCell cell, Rectangle rect)
{
if (Application.RenderWithVisualStyles)
{
var element = VisualStyleElement.ProgressBar.Bar.Normal;
if (VisualStyleRenderer.IsElementDefined(element))
{
new VisualStyleRenderer(element).DrawBackground(graphics, rect);
return;
}
}
graphics.FillRectangle(SystemBrushes.Window, rect);
ControlPaint.DrawBorder3D(graphics, rect, Border3DStyle.Flat);
}
internal override void Update(TreeList treelist, TreeListItem parent, int level)
{
if (statInfo != null)
{
for (var i = Cells.Count; i < treelist.Columns.Count; i++)
{
var cell = new TreeListCell();
cell.Value = GetStatPropertyValue(treelist.Columns[i].DataKey);
Cells.Add(cell);
}
}
base.Update(treelist, parent, level);
}
/// <summary>
/// 绘制子项的文本。
/// </summary>
/// <param name="graphics"></param>
/// <param name="cell"></param>
/// <param name="rect"></param>
/// <param name="state"></param>
protected virtual void DrawCellText(Graphics graphics, TreeListCell cell, Rectangle rect, DrawState state)
{
var item = cell.Item;
var column = cell.Column;
var treeList = item.TreeList;
var foreColor = state == DrawState.Selected && treeList.Focused ? SystemColors.Window :
(!column.CellForeColor.IsEmpty ? column.CellForeColor : (!column.ForeColor.IsEmpty ? column.ForeColor :
(!item.ForeColor.IsEmpty ? item.ForeColor : treeList.ForeColor)));
var font = column.CellFont ?? column.Font ?? item.Font ?? treeList.Font;
var text = GetDrawingText(cell, out bool isNullText);
if (isNullText && !(state == DrawState.Selected && treeList.Focused))
{
foreColor = Color.DarkGray;
}
if (item.Highlight)
{
foreColor = Color.White;
}
else if (state == DrawState.Hot)
{
foreColor = SystemColors.HotTrack;
}
var flags = TextFormatFlags.EndEllipsis | TextFormatFlags.VerticalCenter | TextFormatFlags.PreserveGraphicsClipping;
if (cell.Column.TreeList.ColumnHorizontalCenter || cell.Column.TextAlign == HorizontalAlignment.Center)
{
flags |= TextFormatFlags.HorizontalCenter;
}
else if (cell.Column.TextAlign == HorizontalAlignment.Right)
{
flags |= TextFormatFlags.Right;
}
//graphics.DrawString(text, font, new SolidBrush(foreColor), rect, sf);
TextRenderer.DrawText(graphics, text, font, rect, foreColor, flags);
}
/// <summary>
/// 绘制验证失败的标识。
/// </summary>
/// <param name="graphics"></param>
/// <param name="cell"></param>
/// <param name="rect"></param>
protected virtual void DrawInvalidate(Graphics graphics, TreeListCell cell, Rectangle rect)
{
var img = Properties.Resources.error;
graphics.DrawImage(img, rect.Left + rect.Width - img.Width, rect.Top + (rect.Height - img.Height) / 2);
}
internal TreeListCellRenderEventArgs(TreeListCell item, Graphics graphics, Rectangle rect)
: base(graphics, rect)
{
Cell = item;
}
