protected Size GetLabelSize(TreeNodeAdv node, DrawContext context, string label)
{
PerformanceAnalyzer.Start("GetLabelSize");
CheckThread();
Font font = GetDrawingFont(node, context, label);
Size s = Size.Empty;
if (UseCompatibleTextRendering)
{
s = TextRenderer.MeasureText(label, font, s, TextFormatFlags.NoPrefix);
}
else
{
SizeF sf = context.Graphics.MeasureString(label, font);
s = new Size((int)Math.Ceiling(sf.Width), (int)Math.Ceiling(sf.Height));
}
PerformanceAnalyzer.Finish("GetLabelSize");
if (!s.IsEmpty)
{
return(s);
}
else
{
return(new Size(10, Font.Height));
}
}
private void DrawColumnHeaders(Graphics gr)
{
PerformanceAnalyzer.Start("DrawColumnHeaders");
ReorderColumnState reorder = Input as ReorderColumnState;
int x = 0;
TreeColumn.DrawBackground(gr, new Rectangle(0, 0, ClientRectangle.Width + 2, ColumnHeaderHeight - 1), false, false);
gr.TranslateTransform(-OffsetX, 0);
foreach (TreeColumn c in Columns)
{
if (c.IsVisible)
{
if (x >= OffsetX && x - OffsetX < this.Bounds.Width)// skip invisible columns
{
Rectangle rect = new Rectangle(x, 0, c.Width, ColumnHeaderHeight - 1);
gr.SetClip(rect);
bool pressed = ((Input is ClickColumnState || reorder != null) && ((Input as ColumnState).Column == c));
c.Draw(gr, rect, Font, pressed, _hotColumn == c);
gr.ResetClip();
if (reorder != null && reorder.DropColumn == c)
TreeColumn.DrawDropMark(gr, rect);
}
x += c.Width;
}
}
if (reorder != null)
{
if (reorder.DropColumn == null)
TreeColumn.DrawDropMark(gr, new Rectangle(x, 0, 0, ColumnHeaderHeight));
gr.DrawImage(reorder.GhostImage, new Point(reorder.Location.X + + reorder.DragOffset, reorder.Location.Y));
}
PerformanceAnalyzer.Finish("DrawColumnHeaders");
}
protected Size GetLabelSize(DrawContext context, string label)
{
PerformanceAnalyzer.Start("GetLabelSize");
Font font = GetDrawingFont(context, label);
Size s = Size.Empty;
if (!UseCompatibleTextRendering)
{
s = TextRenderer.MeasureText(label, font);
}
else
{
SizeF sf = context.Graphics.MeasureString(label, font);
s = new Size((int)Math.Ceiling(sf.Width), (int)Math.Ceiling(sf.Height));
}
PerformanceAnalyzer.Finish("GetLabelSize");
if (!s.IsEmpty)
{
return(s);
}
else
{
return(new Size(10, font.Height));
}
}
public override void Draw(TreeNodeAdv node, DrawContext context)
{
if (context.CurrentEditorOwner == this &&
node == Parent.CurrentNode &&
!this.EditorDisposing)
{
return;
}
PerformanceAnalyzer.Start("BaseTextControl.Draw");
string label = GetLabel(node);
Rectangle bounds = GetBounds(node, context);
Rectangle focusRect = new Rectangle(bounds.X, context.Bounds.Y,
bounds.Width, context.Bounds.Height);
Brush backgroundBrush;
Color textColor;
Font font;
CreateBrushes(node, context, label, out backgroundBrush, out textColor, out font, ref label);
if (backgroundBrush != null)
{
context.Graphics.FillRectangle(backgroundBrush, focusRect);
}
if (context.DrawFocus)
{
focusRect.Width--;
focusRect.Height--;
if (context.DrawSelection == DrawSelectionMode.None)
{
_focusPen.Color = SystemColors.ControlText;
}
else
{
_focusPen.Color = SystemColors.InactiveCaption;
}
context.Graphics.DrawRectangle(_focusPen, focusRect);
}
PerformanceAnalyzer.Start("BaseTextControl.DrawText");
if (!UseCompatibleTextRendering)
{
TextRenderer.DrawText(context.Graphics, label, font, bounds, textColor, _formatFlags);
}
else
{
context.Graphics.DrawString(label, font, GetFrush(textColor), bounds, _format);
}
PerformanceAnalyzer.Finish("BaseTextControl.DrawText");
PerformanceAnalyzer.Finish("BaseTextControl.Draw");
}
public override void Draw(TreeNodeAdv node, DrawContext context)
{
if (context.CurrentEditorOwner == this && node == Parent.CurrentNode)
{
return;
}
PerformanceAnalyzer.Start("BaseTextControl.Draw");
Rectangle bounds = GetBounds(node, context);
Rectangle focusRect = new Rectangle(bounds.X, context.Bounds.Y,
bounds.Width, context.Bounds.Height);
DrawEventArgs args;
CreateBrushes(node, context, out args);
if (args.BackgroundBrush != null)
{
context.Graphics.FillRectangle(args.BackgroundBrush, focusRect);
}
if (context.DrawFocus)
{
focusRect.Width--;
focusRect.Height--;
if (context.DrawSelection == DrawSelectionMode.None)
{
_focusPen.Color = SystemColors.ControlText;
}
else
{
_focusPen.Color = SystemColors.InactiveCaption;
}
context.Graphics.DrawRectangle(_focusPen, focusRect);
}
PerformanceAnalyzer.Start("BaseTextControl.DrawText");
DrawHighLight(context, bounds, args);
if (!UseCompatibleTextRendering)
{
TextRenderer.DrawText(context.Graphics, args.Text, args.Font, bounds, args.TextColor, _formatFlags);
}
else
{
context.Graphics.DrawString(args.Text, args.Font, GetFrush(args.TextColor), bounds, _format);
}
PerformanceAnalyzer.Finish("BaseTextControl.DrawText");
PerformanceAnalyzer.Finish("BaseTextControl.Draw");
}
protected override void OnPaint(PaintEventArgs e)
{
BeginPerformanceCount();
PerformanceAnalyzer.Start("OnPaint");
DrawContext context = new DrawContext();
context.Graphics = e.Graphics;
context.Font = this.Font;
context.Enabled = Enabled;
int y = 0;
int gridHeight = 0;
if (UseColumns)
{
DrawColumnHeaders(e.Graphics);
y += ColumnHeaderHeight;
if (Columns.Count == 0 || e.ClipRectangle.Height <= y)
return;
}
int firstRowY = _rowLayout.GetRowBounds(FirstVisibleRow).Y;
y -= firstRowY;
e.Graphics.ResetTransform();
e.Graphics.TranslateTransform(-OffsetX, y);
Rectangle displayRect = DisplayRectangle;
for (int row = FirstVisibleRow; row < RowCount; row++)
{
Rectangle rowRect = _rowLayout.GetRowBounds(row);
gridHeight += rowRect.Height;
if (rowRect.Y + y > displayRect.Bottom)
break;
else
DrawRow(e, ref context, row, rowRect);
}
if ((GridLineStyle & GridLineStyle.Vertical) == GridLineStyle.Vertical && UseColumns)
DrawVerticalGridLines(e.Graphics, firstRowY);
if (_dropPosition.Node != null && DragMode && HighlightDropPosition)
DrawDropMark(e.Graphics);
e.Graphics.ResetTransform();
DrawScrollBarsBox(e.Graphics);
if (DragMode && _dragBitmap != null)
e.Graphics.DrawImage(_dragBitmap, PointToClient(MousePosition));
PerformanceAnalyzer.Finish("OnPaint");
EndPerformanceCount(e);
}
