private void DrawStyleItem(Graphics gfx, Rectangle previewBounds, IParagraphStyle paragraphStyle) {
StringFormat stringFormat = ToolCache.GetStringFormat(paragraphStyle);
Rectangle r = Rectangle.Empty;
r.X = previewBounds.X + paragraphStyle.Padding.Left;
r.Y = previewBounds.Y + paragraphStyle.Padding.Top;
r.Width = (previewBounds.Width * 10) - (paragraphStyle.Padding.Left + paragraphStyle.Padding.Right);
r.Height = (previewBounds.Height * 10) - (paragraphStyle.Padding.Top + paragraphStyle.Padding.Bottom);
// Transform
float scale = Geometry.CalcScaleFactor(r.Width, r.Height, previewBounds.Width, previewBounds.Height);
gfx.ScaleTransform(scale, scale);
// Draw
gfx.DrawString(previewText, Control.DefaultFont, Brushes.Black, r, stringFormat);
}
/// <override></override>
protected override void OnDrawItem(DrawItemEventArgs e)
{
if (maxItemTextWidth < 0)
{
UpdateMaxItemWidth(e.Graphics);
}
const int txtMargin = 4;
itemBounds.X = e.Bounds.X + 3;
itemBounds.Y = e.Bounds.Y + 1;
itemBounds.Width = (e.Bounds.Right - 3) - (e.Bounds.X + 3);
itemBounds.Height = (e.Bounds.Bottom - 1) - (e.Bounds.Y + 1);
previewRect.X = itemBounds.X + margin;
previewRect.Y = itemBounds.Y + margin;
previewRect.Width = itemBounds.Width - Math.Max(maxItemTextWidth, itemBounds.Width / 4) - (2 * margin) - (2 * txtMargin);
previewRect.Height = (itemBounds.Bottom - margin) - (itemBounds.Y + margin);
labelLayoutRect.X = previewRect.Right + txtMargin;
labelLayoutRect.Y = previewRect.Y;
labelLayoutRect.Width = maxItemTextWidth;
labelLayoutRect.Height = previewRect.Height;
// Draw Item Background and Border
e.Graphics.FillRectangle(ItemBackgroundBrush, itemBounds);
if (itemBorderColor != Color.Transparent)
{
e.Graphics.DrawRectangle(ItemBorderPen, itemBounds);
}
// Draw Selection and/or Focus markers
if ((e.State & DrawItemState.Selected) != 0)
{
e.Graphics.FillRectangle(ItemSelectedBrush, itemBounds);
}
if ((e.State & DrawItemState.Focus) != 0)
{
if (itemFocusedColor != Color.Transparent)
{
e.Graphics.FillRectangle(ItemFocusedBrush, itemBounds);
}
if (FocusBorderColor != Color.Transparent)
{
e.Graphics.DrawRectangle(FocusBorderPen, itemBounds);
}
}
else if (HighlightItems && (e.State & DrawItemState.HotLight) != 0)
{
if (ItemHighlightedColor != Color.Transparent)
{
e.Graphics.FillRectangle(ItemHighlightedBrush, itemBounds);
}
}
e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
e.Graphics.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
if (Items.Count > 0 && e.Index >= 0)
{
if (Items[e.Index] is IStyle)
{
switch (StyleCategory)
{
case StyleCategory.CapStyle:
DrawCapStyleItem((CapStyle)Items[e.Index], e);
break;
case StyleCategory.ColorStyle:
ColorStyle colorStyle = (ColorStyle)Items[e.Index];
Brush colorBrush = ToolCache.GetBrush(colorStyle);
e.Graphics.FillRectangle(colorBrush, previewRect);
e.Graphics.DrawRectangle(ItemBorderPen, previewRect);
e.Graphics.DrawRectangle(Pens.Black, previewRect);
e.Graphics.DrawString(colorStyle.Title, e.Font, TextBrush, labelLayoutRect, styleItemFormatter);
break;
case StyleCategory.FillStyle:
DrawFillStyleItem((FillStyle)Items[e.Index], e);
break;
case StyleCategory.CharacterStyle:
CharacterStyle charStyle = (CharacterStyle)Items[e.Index];
Font font = ToolCache.GetFont(charStyle);
Brush fontBrush = ToolCache.GetBrush(charStyle.ColorStyle);
e.Graphics.DrawString(string.Format("{0} {1} pt", font.FontFamily.Name, font.SizeInPoints), font, fontBrush, previewRect, styleItemFormatter);
e.Graphics.DrawString(charStyle.Title, e.Font, TextBrush, labelLayoutRect, styleItemFormatter);
break;
case StyleCategory.LineStyle:
LineStyle lineStyle = (LineStyle)Items[e.Index];
Pen linePen = ToolCache.GetPen(lineStyle, null, null);
e.Graphics.DrawLine(linePen, previewRect.X, previewRect.Y + (previewRect.Height / 2), previewRect.Right, previewRect.Y + (previewRect.Height / 2));
e.Graphics.DrawString(lineStyle.Title, e.Font, TextBrush, labelLayoutRect, styleItemFormatter);
break;
case StyleCategory.ParagraphStyle:
ParagraphStyle paragraphStyle = (ParagraphStyle)Items[e.Index];
StringFormat stringFormat = ToolCache.GetStringFormat(paragraphStyle);
Rectangle r = Rectangle.Empty;
r.X = previewRect.Left + paragraphStyle.Padding.Left;
r.Y = previewRect.Top + paragraphStyle.Padding.Top;
r.Width = previewRect.Width - (paragraphStyle.Padding.Left + paragraphStyle.Padding.Right);
r.Height = previewRect.Height - (paragraphStyle.Padding.Top + paragraphStyle.Padding.Bottom);
e.Graphics.DrawString(previewText, e.Font, TextBrush, r, stringFormat);
e.Graphics.DrawRectangle(Pens.Black, previewRect);
e.Graphics.DrawString(paragraphStyle.Title, e.Font, TextBrush, labelLayoutRect, styleItemFormatter);
break;
default:
throw new NShapeException(string.Format("Unexpected enum value '{0}'.", styleCategory));
}
}
else
{
e.Graphics.DrawString(Items[e.Index].ToString().Trim(), e.Font, TextBrush, e.Bounds, specialItemFormatter);
}
}
}