/// <summary>Paint the backgrounds to show capture groups</summary>
private void CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
e.Handled = false;
var grid = (DataGridView)sender;
if (e.RowIndex < 0 || e.RowIndex >= Pattern.Subs.Count)
{
return;
}
switch (grid.Columns[e.ColumnIndex].Name)
{
case ColumnNames.Tag:
e.CellStyle.BackColor = Constants.BkColors[e.RowIndex % Constants.BkColors.Length];
e.CellStyle.SelectionBackColor = Gfx_.Blend(e.CellStyle.BackColor, Color.Black, 0.2f);
break;
}
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
var bounds = ClientRectangle;
bounds.Inflate(-1, -1);
if (bounds.Width <= 0 || bounds.Height <= 0)
{
return;
}
var gfx = e.Graphics;
var total = TotalRange;
gfx.SmoothingMode = SmoothingMode.AntiAlias;
Color c0, c1;
Point pt0 = new Point(bounds.Left, 0);
Point pt1 = new Point(bounds.Right, 0);
// Create rectangles for the highlight ranges
foreach (var r in m_indicator_ranges)
{
int sy = (int)(Math_.Frac(total.Beg, r.Range.Beg, total.End) * bounds.Height);
int ey = (int)(Math_.Frac(total.Beg, r.Range.End, total.End) * bounds.Height);
r.m_rect = new Rectangle(bounds.X, bounds.Y + sy, bounds.Width, Math.Max(ey - sy, 1));
}
// Background
c0 = Gfx_.Blend(Color.Black, TrackColor, 0.8f);
c1 = TrackColor;
using (var bsh = new LinearGradientBrush(pt0, pt1, c0, c1))
gfx.FillRectangle(bsh, bounds);
// Draw the overlay image
if (Overlay != null)
{
var r = new Rectangle(bounds.X, bounds.Y, bounds.Width, bounds.Height);
var s = new Rectangle(0, 0, Overlay.Width, Overlay.Height);
if (OverlayAttributes == null)
{
gfx.DrawImage(Overlay, r, s, GraphicsUnit.Pixel);
}
else
{
gfx.DrawImage(Overlay, r, s, GraphicsUnit.Pixel, OverlayAttributes);
}
}
// Indicator ranges
foreach (var r in m_indicator_ranges)
{
c0 = r.Color;
c1 = Gfx_.Blend(c0, Color.FromArgb(c0.A, Color.White), 0.2f);
using (var bsh = new LinearGradientBrush(pt0, pt1, c0, c1))
gfx.FillRectangle(bsh, r.m_rect);
}
// Thumb
{
var r = MakeThumbRect(bounds);
c0 = Gfx_.Blend(Color.White, Color.FromArgb(0x80, ThumbColor), 0.8f);
c1 = ThumbColor;
using (var bsh = new LinearGradientBrush(pt0, pt1, c0, c1))
gfx.FillRectangle(bsh, r);
if (r.Width > 2)
{
using (var pen = new Pen(ThumbColor))
{
gfx.DrawLine(pen, r.Left + 1, r.Top, r.Right - 1, r.Top);
gfx.DrawLine(pen, r.Left + 1, r.Bottom, r.Right - 1, r.Bottom);
}
}
}
// Borders
gfx.DrawRectangleRounded(SystemPens.ControlDarkDark, bounds, m_corner_radius);
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
// Find the bounding area of the control
var bounds = ClientRectangle;
bounds.Inflate(-1, -1);
if (bounds.Width <= 0 || bounds.Height <= 0)
{
return;
}
var gfx = e.Graphics;
var total = ZoomedRange;
gfx.SmoothingMode = SmoothingMode.AntiAlias;
Color c0, c1;
Point pt0 = new Point(bounds.Left, 0);
Point pt1 = new Point(bounds.Right, 0);
// Background
c0 = Gfx_.Blend(Color.Black, TrackColor, 0.7f);
c1 = TrackColor;
using (var bsh = new LinearGradientBrush(pt0, pt1, c0, c1)) // This throws OutOfMemoryException if pt0 == pt1.. ffs MS..
gfx.FillRectangle(bsh, bounds);
// Draw the overlay image
if (Overlay != null)
{
var r = new Rectangle(bounds.X, bounds.Y, bounds.Width, bounds.Height);
var s = new Rectangle(0, 0, Overlay.Width, Overlay.Height);
if (OverlayAttributes == null)
{
gfx.DrawImage(Overlay, r, s, GraphicsUnit.Pixel);
}
else
{
gfx.DrawImage(Overlay, r, s, GraphicsUnit.Pixel, OverlayAttributes);
}
}
// Draw the visible range
if (bounds.Width > 2)
{
int sy = (int)(Math_.Frac(total.Beg, VisibleRange.Beg, total.End) * bounds.Height);
int ey = (int)(Math_.Frac(total.Beg, VisibleRange.End, total.End) * bounds.Height);
var r = new Rectangle(bounds.X + 1, bounds.Y + sy, bounds.Width - 2, ey - sy);
using (var bsh = new SolidBrush(VisibleRangeColor))
{
gfx.FillRectangle(bsh, r);
}
if (bounds.Width > 4)
{
using (var pen = new Pen(VisibleRangeBorderColor))
{
gfx.DrawLine(pen, r.Left + 1, r.Top, r.Right - 1, r.Top);
gfx.DrawLine(pen, r.Left + 1, r.Bottom, r.Right - 1, r.Bottom);
}
}
}
// Borders
gfx.DrawRectangleRounded(SystemPens.ControlDarkDark, bounds, m_corner_radius);
}