public FlatListItemList InItemList()
{
FlatListItem fli = InItem();
if (fli == null)
{
return(Items);
}
return(fli.SubItems);
}
protected override void OnMouseDown(MouseEventArgs e)
{
if (DesignMode)
{
return;
}
int iItem = ItemAtPoint(e.Location);
if (_CheckboxStyle)
{
if (iItem == -1)
{
return;
}
FlatListItem i = InItemList()[iItem];
i.Checked = !i.Checked;
Invalidate();
return;
}
if (iItem == -1 && !_ClickDeselects)
{
return;
}
if (e.Button == MouseButtons.Left)
{
Select(iItem, _MultiSelect && (ModifierKeys & Keys.Control) != 0);
}
FlatListItem item = null;
if (iItem != -1)
{
item = InItemList()[iItem];
item.CallOnSelected(this, e);
}
if (SelectedItemClicked != null)
{
SelectedItemClicked(this, new FlatListItemClickedEventArgs()
{
Item = item,
MouseButton = e.Button,
MouseLocation = e.Location
});
}
base.OnMouseDown(e);
}
protected override void OnPaint(PaintEventArgs e)
{
if (Parent is FlatArrowContainer)
{
// we only have to draw the background manually here if we're in a FlatArrowContainer
e.Graphics.Clear(BackColor);
}
FlatListItemList flil = Items;
if (!DesignMode)
{
FlatListItem fliInItem = InItem();
if (fliInItem != null)
{
flil = fliInItem.SubItems;
if (!InItemLabel.Visible)
{
InItemLabel.Visible = true;
InItemLabel.BackColor = _BorderColor;
InItemLabel.ForeColor = ForeColor;
InItemLabel.Height = _ItemHeight;
InItemLabel.Left = this.Left;
InItemLabel.Top = this.Top;
this.Top = InItemLabel.Top + InItemLabel.Height;
this.Height -= InItemLabel.Height;
}
InItemLabel.Text = " < " + fliInItem.Text;
}
else
{
if (InItemLabel.Visible)
{
InItemLabel.Visible = false;
this.Top = InItemLabel.Top;
this.Height += InItemLabel.Height;
}
}
}
e.Graphics.TranslateTransform(AutoScrollPosition.X, AutoScrollPosition.Y);
for (int i = 0; i < flil.Count; i++)
{
DrawItem(i, flil[i], e);
}
base.OnPaint(e);
}
public FlatListItem InItem()
{
FlatListItem ret = null;
for (int i = 0; i < InItemStack.Count; i++)
{
if (ret == null)
{
ret = Items[InItemStack[i]];
}
else
{
ret = ret.SubItems[InItemStack[i]];
}
}
return(ret);
}
private void DrawItem(int index, FlatListItem item, PaintEventArgs e)
{
Rectangle rect = RectangleForItem(index);
if (!e.ClipRectangle.IntersectsWith(rect))
{
return;
}
rect.X -= AutoScrollPosition.X;
rect.Y -= AutoScrollPosition.Y;
int itemImageSize = _ItemImageSize;
int itemImagePadding = itemImageSize + _ItemImageSizeSpacing * 2;
Color foreColor = ForeColor;
if (item.ForeColor != Color.Empty)
{
foreColor = item.ForeColor;
}
Color foreColorSub = _ForeColorSub;
if (item.ForeColorSub != Color.Empty)
{
foreColorSub = item.ForeColorSub;
}
Color backColor = item.BackColor;
if (index == HoverIndex)
{
backColor = _HoverColor;
}
if ((!_CheckboxStyle && SelectedIndices.Contains(index)) || (_CheckboxStyle && item.Checked))
{
backColor = _SelectionColor;
foreColor = _SelectionTextColor;
}
if (backColor != Color.Empty)
{
using (SolidBrush brush = new SolidBrush(backColor)) {
e.Graphics.FillRectangle(brush, rect);
}
}
if (item.Image != null)
{
e.Graphics.DrawImage(item.Image, new Rectangle(_PaddingX + _ItemImageSizeSpacing + rect.X, rect.Y + rect.Height / 2 - itemImageSize / 2, itemImageSize, itemImageSize));
}
Font font = Font;
if (item.Font != null)
{
font = item.Font;
}
Font fontSub = _FontSub;
if (item.FontSub != null)
{
fontSub = item.FontSub;
}
PointF ptOffsetText = new PointF(0, 0);
SizeF sizeText = e.Graphics.MeasureString(item.Text, font);
SizeF sizeSubText = e.Graphics.MeasureString(item.SubText, fontSub);
int textOffset = 0;
int subtextOffset = 0;
if (!sizeSubText.IsEmpty)
{
subtextOffset = ItemSubTextSpacing / 2;
textOffset = -subtextOffset;
}
if (item.ShowProgress)
{
ptOffsetText.Y -= 4;
}
SolidBrush brushForeColor = new SolidBrush(foreColor);
SolidBrush brushForeColorSub = new SolidBrush(foreColorSub);
e.Graphics.DrawString(item.Text, font, brushForeColor, new PointF(
ptOffsetText.X + _PaddingX + rect.X + itemImagePadding,
ptOffsetText.Y + rect.Y + rect.Height / 2 - sizeText.Height / 2 - sizeSubText.Height / 2 + textOffset
));
if (!sizeSubText.IsEmpty)
{
e.Graphics.DrawString(item.SubText, fontSub, brushForeColorSub, new PointF(
ptOffsetText.X + _PaddingX + rect.X + itemImagePadding,
ptOffsetText.Y + rect.Y + rect.Height / 2 - sizeText.Height / 2 + sizeSubText.Height / 2 + subtextOffset
));
}
if (_SubItemIndicator && item.SubItems != null && item.SubItems.Count > 0)
{
e.Graphics.DrawString(">", font, brushForeColor, new PointF(
rect.Width - 16,
ptOffsetText.Y + rect.Y + rect.Height / 2 - sizeText.Height / 2
));
}
if (item.ShowProgress)
{
int iOffsetRight = _PaddingX * 2;
if (VerticalScroll.Visible)
{
iOffsetRight += 16;
}
Point ptProgress = new Point(
(int)(ptOffsetText.X + _PaddingX + rect.X + itemImagePadding + 2),
(int)(ptOffsetText.Y + rect.Y + rect.Height / 2 - sizeText.Height / 2 + sizeSubText.Height + 8)
);
Size sizeProgress = new Size(rect.Width - ptProgress.X - iOffsetRight, 8);
Size sizeProgressFill = new Size((int)(sizeProgress.Width * item.Progress), 8);
using (SolidBrush brush = new SolidBrush(foreColorSub.Lerp(this.BackColor, 0.6))) {
e.Graphics.FillRectangle(brush, new Rectangle(ptProgress, sizeProgress));
}
e.Graphics.FillRectangle(brushForeColor, new Rectangle(ptProgress, sizeProgressFill));
}
brushForeColor.Dispose();
brushForeColorSub.Dispose();
}
