private void PaintPartition(PaintEventArgs e, Rectangle rectPartition, PhysicalDrive.PARTITION_INFORMATION_EX partition, PartitionType partitionType)
{
// ensure that a primary or logical partition should be drawn
System.Diagnostics.Debug.Assert(partitionType != PartitionType.Extended);
// store the current clipping region
Region clip = e.Graphics.Clip;
// draw a black rectangle around the current partition
Pen penPartition = new Pen(Color.Black, 2.0f);
Rectangle rectBorder = rectPartition;
rectBorder.Inflate(-(int)Math.Ceiling(penPartition.Width / 2), -(int)Math.Ceiling(penPartition.Width / 2));
e.Graphics.DrawRectangle(penPartition, rectBorder);
// fill the rectangle with white color (partition not selected) or with a hatched brush (partition selected)
Rectangle rectInner = rectBorder;
rectInner.Inflate(-(int)Math.Ceiling(penPartition.Width / 2), -(int)Math.Ceiling(penPartition.Width / 2));
Brush brush;
if (partition.PartitionNumber == selectedPartitionNumber)
{
brush = new HatchBrush(HatchStyle.DarkDownwardDiagonal, Color.FromArgb(230, 230, 230), Color.White);
}
else
{
brush = new SolidBrush(Color.White);
}
e.Graphics.FillRectangle(brush, rectInner);
// add the title - a box coloured using the partition type color with border which contains the partition number
Rectangle rectTitle = rectInner;
rectTitle.Height = 17;
e.Graphics.FillRectangle(new SolidBrush(GetColor(partitionType)), rectTitle);
e.Graphics.DrawLine(penPartition, new Point(rectTitle.Left, rectTitle.Bottom), new Point(rectTitle.Right, rectTitle.Bottom));
// draw further information about the partiton
e.Graphics.Clip = new Region(rectInner);
//e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
Font font = new Font(new FontFamily("Arial"), 9, FontStyle.Regular);
e.Graphics.DrawString(string.Format("[{0}]", partition.PartitionNumber), font, new SolidBrush(Color.White), rectInner.Left, rectInner.Top);
string type = PartitionTypes.GetPartitionType(partition.Mbr.PartitionType);
if (type == null)
{
type = "Unknown";
}
e.Graphics.DrawString(type, font, new SolidBrush(Color.Black), rectInner.Left, rectInner.Top + 20);
e.Graphics.DrawString(PhysicalDrive.GetAsBestFitSizeUnit(partition.PartitionLength), font, new SolidBrush(Color.Black), rectInner.Left, rectInner.Top + 40);
// reset the clipping region
e.Graphics.Clip = clip;
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
// just draw nothing in case there is nothing to draw
if (driveInfo == null)
{
return;
}
// draw real partitions (primary or logical) only and ignore extended partitions
long curOffset = long.MinValue;
for (int i = 0; i < driveInfo.Partitions.Count; i++)
{
// prepare the rectangle for this partition
long minOffset = long.MaxValue;
int partition = -1;
for (int j = 0; j < driveInfo.Partitions.Count; j++)
{
if ((driveInfo.Partitions[j].StartingOffset >= curOffset) &&
(driveInfo.Partitions[j].StartingOffset < minOffset))
{
minOffset = driveInfo.Partitions[j].StartingOffset;
partition = j;
}
}
// break the loop if there is no further partition to draw
if (partition == -1)
{
break;
}
Rectangle rectPrimary = new Rectangle((int)Math.Ceiling((driveInfo.Partitions[partition].StartingOffset / (double)driveInfo.Size) * ClientRectangle.Width),
0,
(int)((driveInfo.Partitions[partition].PartitionLength / (double)driveInfo.Size) * ClientRectangle.Width),
ClientRectangle.Height);
curOffset = driveInfo.Partitions[partition].StartingOffset + driveInfo.Partitions[partition].PartitionLength;
if ((driveInfo.Partitions[partition].Mbr.PartitionType != 0x05U))
{
rectPrimary.Inflate(-1, -3);
PaintPartition(e, rectPrimary, driveInfo.Partitions[partition], PartitionType.Primary);
}
else
{
rectPrimary.Inflate(-1, -1);
// draw a green rectangle around the current partition
Pen penPartition = new Pen(GetColor(PartitionType.Extended), 2.0f);
Rectangle rectBorder = rectPrimary;
rectBorder.Inflate(-(int)Math.Ceiling(penPartition.Width / 2), -(int)Math.Ceiling(penPartition.Width / 2));
e.Graphics.DrawRectangle(penPartition, rectBorder);
// get the rectangle for the inner region of the extended partition
Rectangle rectInner = rectBorder;
rectInner.Inflate(-(int)Math.Ceiling(penPartition.Width / 2), -(int)Math.Ceiling(penPartition.Width / 2));
// draw all logical partitions within the extended partition
PhysicalDrive.PARTITION_INFORMATION_EX extended = driveInfo.Partitions[partition];
long curLogicalOffset = driveInfo.Partitions[partition].StartingOffset + 1;
for (int j = 0; j < driveInfo.Partitions.Count; j++)
{
partition = -1;
minOffset = long.MaxValue;
for (int k = 0; k < driveInfo.Partitions.Count; k++)
{
if ((driveInfo.Partitions[k].Mbr.PartitionType != 0x05) &&
(driveInfo.Partitions[k].StartingOffset >= curLogicalOffset) &&
(driveInfo.Partitions[k].StartingOffset < minOffset))
{
minOffset = driveInfo.Partitions[k].StartingOffset;
partition = k;
}
}
// break the loop if there is no further partition to draw
if (partition == -1)
{
break;
}
Rectangle rectLogical = new Rectangle(rectInner.Left + (int)Math.Ceiling(((driveInfo.Partitions[partition].StartingOffset - extended.StartingOffset) / (double)extended.PartitionLength) * rectInner.Width),
0,
(int)((driveInfo.Partitions[partition].PartitionLength / (double)extended.PartitionLength) * rectInner.Width),
ClientRectangle.Height);
curLogicalOffset = driveInfo.Partitions[partition].StartingOffset + driveInfo.Partitions[partition].PartitionLength;
rectLogical.Inflate(-1, -3);
PaintPartition(e, rectLogical, driveInfo.Partitions[partition], PartitionType.Logical);
}
}
}
}
