protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.TranslateTransform(this.AutoScrollPosition.X, this.AutoScrollPosition.Y);
List <int> indices = GetVisibleIndices(e.Graphics.VisibleClipBounds);
if (CacheItems != null)
{
Rectangle rect = this.Bounds;
rect.Offset(-this.AutoScrollPosition.X, -this.AutoScrollPosition.Y);
List <int> allIndices = GetVisibleIndices(rect);
if (allIndices.Count > 0 && (cachedIndices.Count == 0 || cachedIndices.Count < allIndices.Count || (cachedIndices[0] > allIndices[0] || cachedIndices[cachedIndices.Count - 1] < allIndices[allIndices.Count - 1])))
{
CacheItemEventArgs ne = new CacheItemEventArgs(allIndices);
CacheItems(this, ne);
if (ne.Success)
{
cachedIndices = allIndices;
}
}
}
foreach (int i in indices)
{
if (i >= VirtualListSize)
{
throw new ArgumentException("index out of range", "i");
}
Size bs = new Size((int)m_TileBorder.Width * 2, (int)m_TileBorder.Width * 2); // border size
Size single = new Size(1, 1);
Point p = GetItemLocation(i);
Point mp = new Point(p.X + m_TileMargin.Left, p.Y + m_TileMargin.Top); //margined point
Point bp = new Point(mp.X + (int)m_TileBorder.Width, mp.Y + (int)m_TileBorder.Width); //bordered point
Point pp = new Point(bp.X + m_TilePadding.Left, bp.Y + m_TilePadding.Top); //padded point
//m_TileSize + m_TilePadding.Size + bs + m_TileMargin.Size
Rectangle mr = new Rectangle(mp, m_TileSize + m_TilePadding.Size + bs);
Rectangle br = new Rectangle(bp, m_TileSize + m_TilePadding.Size);
Rectangle pr = new Rectangle(pp, m_TileSize);
if (this.SelectedIndices.Contains(i))
{
e.Graphics.FillRectangle(m_TileHighlightColor, mr);
}
if (DrawItem != null)
{
DrawItem(this, new DrawTileListItemEventArgs(e.Graphics, this.Font, br, i, (this.m_FocusIndex == i ? DrawItemState.Selected : DrawItemState.None)));
}
else
{
e.Graphics.FillRectangle(Brushes.Pink, pr); // tile itself
//TODO: Rewrite text drawing completely
string text = i.ToString();
SizeF strLayout = new SizeF(TileSize.Width, TilePadding.Bottom);
SizeF strSize = e.Graphics.MeasureString(text, this.Font, strLayout, TextStringFormat);
PointF strPos = new PointF(br.X + (br.Width - strSize.Width) / 2, br.Top + TilePadding.Top + TileSize.Height + (strLayout.Height / 2 - strSize.Height / 2));
//new RectangleF(new PointF((ImagesListView.TileSize.Width - strSize.Width) / 2 + e.Bounds.Left, e.Bounds.Y + ImagesListView.TilePadding.Top + ImagesListView.TileSize.Height + (e.Font.Height - strSize.Height / 2))
if (TilePadding.Bottom - strSize.Height < 2)
{
return; //No space for text
}
e.Graphics.DrawString(text, this.Font, SystemBrushes.ControlText, new RectangleF(strPos, strSize), TextStringFormat);
}
if (m_TileBorder.Width > 0)
{
e.Graphics.DrawRectangle(m_TileBorder, new Rectangle(mr.Location, mr.Size - single));
}
if (this.m_FocusIndex == i) // not sure yet on should it be in DrawItem or here...
{
ControlPaint.DrawFocusRectangle(e.Graphics, mr);
}
}
//e.Graphics.DrawRectangle(new Pen(Color.FromArgb(64, Color.Black),1), new Rectangle(new Point((int)e.Graphics.ClipBounds.Location.X, (int)e.Graphics.ClipBounds.Location.Y), new Size((int)e.Graphics.ClipBounds.Width - 1, (int)e.Graphics.ClipBounds.Height-1)));
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.TranslateTransform(this.AutoScrollPosition.X, this.AutoScrollPosition.Y);
List<int> indices = GetVisibleIndices(e.Graphics.VisibleClipBounds);
if (CacheItems != null)
{
Rectangle rect = this.Bounds;
rect.Offset(-this.AutoScrollPosition.X, -this.AutoScrollPosition.Y);
List<int> allIndices = GetVisibleIndices(rect);
if (allIndices.Count > 0 && (cachedIndices.Count == 0 || cachedIndices.Count < allIndices.Count || (cachedIndices[0] > allIndices[0] || cachedIndices[cachedIndices.Count - 1] < allIndices[allIndices.Count - 1])))
{
CacheItemEventArgs ne = new CacheItemEventArgs(allIndices);
CacheItems(this, ne);
if (ne.Success)
cachedIndices = allIndices;
}
}
foreach(int i in indices)
{
if (i >= VirtualListSize) throw new ArgumentException("index out of range", "i");
Size bs = new Size((int)m_TileBorder.Width * 2, (int)m_TileBorder.Width * 2); // border size
Size single = new Size(1, 1);
Point p = GetItemLocation(i);
Point mp = new Point(p.X + m_TileMargin.Left , p.Y + m_TileMargin.Top); //margined point
Point bp = new Point(mp.X + (int)m_TileBorder.Width, mp.Y + (int)m_TileBorder.Width); //bordered point
Point pp = new Point(bp.X + m_TilePadding.Left, bp.Y + m_TilePadding.Top); //padded point
//m_TileSize + m_TilePadding.Size + bs + m_TileMargin.Size
Rectangle mr = new Rectangle(mp, m_TileSize + m_TilePadding.Size + bs);
Rectangle br = new Rectangle(bp, m_TileSize + m_TilePadding.Size);
Rectangle pr = new Rectangle(pp, m_TileSize);
if (this.SelectedIndices.Contains(i))
{
e.Graphics.FillRectangle(m_TileHighlightColor, mr);
}
if (DrawItem != null)
DrawItem(this, new DrawTileListItemEventArgs(e.Graphics, this.Font, br, i, (this.m_FocusIndex == i ? DrawItemState.Selected : DrawItemState.None)));
else
{
e.Graphics.FillRectangle(Brushes.Pink, pr); // tile itself
//TODO: Rewrite text drawing completely
string text = i.ToString();
SizeF strLayout = new SizeF(TileSize.Width, TilePadding.Bottom);
SizeF strSize = e.Graphics.MeasureString(text, this.Font, strLayout, TextStringFormat);
PointF strPos = new PointF(br.X + (br.Width - strSize.Width) / 2, br.Top + TilePadding.Top + TileSize.Height + (strLayout.Height / 2 - strSize.Height / 2));
//new RectangleF(new PointF((ImagesListView.TileSize.Width - strSize.Width) / 2 + e.Bounds.Left, e.Bounds.Y + ImagesListView.TilePadding.Top + ImagesListView.TileSize.Height + (e.Font.Height - strSize.Height / 2))
if (TilePadding.Bottom - strSize.Height < 2) return; //No space for text
e.Graphics.DrawString(text, this.Font, SystemBrushes.ControlText, new RectangleF(strPos, strSize), TextStringFormat);
}
if (m_TileBorder.Width > 0)
e.Graphics.DrawRectangle(m_TileBorder, new Rectangle(mr.Location, mr.Size - single));
if (this.m_FocusIndex == i) // not sure yet on should it be in DrawItem or here...
{
ControlPaint.DrawFocusRectangle(e.Graphics, mr);
}
}
//e.Graphics.DrawRectangle(new Pen(Color.FromArgb(64, Color.Black),1), new Rectangle(new Point((int)e.Graphics.ClipBounds.Location.X, (int)e.Graphics.ClipBounds.Location.Y), new Size((int)e.Graphics.ClipBounds.Width - 1, (int)e.Graphics.ClipBounds.Height-1)));
}