private void ProfileEventsViewer_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
if (m_Data == null || ClientSize.Width == 0 || ClientSize.Height == 0)
{
return;
}
if (m_OffScreenBitmap == null)
{
UpdateOffscreenSurface();
}
Int64 width = ClientSize.Width;
Time timeStepPerPixel = TimeStepPerPixel();
DrawEventContext drawContext = new DrawEventContext();
drawContext.Graphics = m_OffScreenGraphics;
drawContext.m_TimeStepPerPixel = timeStepPerPixel;
drawContext.Graphics.Clear(Color.LightGray);
drawContext.m_Y = (Int32)m_YOffset;
int contextIndex = 0;
// draw the thing
foreach (ProfileEventData.ProfileContext context in m_Data.Contexts.Values)
{
if (context.Heads.Count == 0)
{
continue;
}
Brush titleBrush;
// Print context name
if ((contextIndex & 1) == 0)
{
titleBrush = titleBrush1;
}
else
{
titleBrush = titleBrush2;
}
drawContext.Graphics.FillRectangle(titleBrush, 0, drawContext.m_Y, width, ((context.MaxLevel + 1) * EventHeight) + TitleHeight);
drawContext.Graphics.DrawString(context.Name, contextTitleFont, fontBrush, 0, drawContext.m_Y);
drawContext.m_Y += TitleHeight;
drawContext.overDraw.Reset();
foreach (ProfileEventData.ProfileContext.Event profileEvent in context.Heads)
{
DrawEvent(profileEvent, ref drawContext);
}
drawContext.m_Y += ((context.MaxLevel + 1) * EventHeight);
contextIndex++;
if (m_CurrentMarker != null)
{
DrawEvent(m_CurrentMarker, ref drawContext);
}
}
// draw the selection range
Int64 rangeX = ConvertTimeToX(m_RangeStart);
Int64 rangeXE = ConvertTimeToX(m_RangeEnd);
if (rangeXE == rangeX)
{
rangeXE++;
}
Int64 rangeWidth = rangeXE - rangeX;
// check if the range is visilbe
if ((rangeX < ClientSize.Width) &&
(rangeXE > 0) && rangeWidth != 0)
{
// display the selection range extent
drawContext.Graphics.FillRectangle(rangeBrush, rangeX, 0, rangeWidth, ClientSize.Height);
// display range length
drawContext.Graphics.DrawString(TimeToString((UInt64)(m_RangeEnd - m_RangeStart)), barFont, fontBrush, rangeX, ClientSize.Height - EventHeight);
}
e.Graphics.DrawImage(m_OffScreenBitmap, 0, 0);
}
private void DrawEvent(ProfileEventData.ProfileContext.Event profileEvent, ref DrawEventContext drawContext)
{
Pen activeRectPen = rectPen;
float rectOffset = 0;
if (profileEvent == m_eventSelection)
{
activeRectPen = rectPenSelected;
rectOffset = 1.5f;
}
if (profileEvent.Inside(m_TimeStart, m_TimeEnd))
{
Int64 screenXEnd = (Int64)((profileEvent.Time + profileEvent.Length - m_TimeStart) / drawContext.m_TimeStepPerPixel);
if (!drawContext.overDraw.ShouldDraw(screenXEnd))
{
return;
}
// compute screen X size
Int64 screenX = (Int64)((profileEvent.Time - m_TimeStart) / drawContext.m_TimeStepPerPixel);
Int64 screenLength = (Int64)((profileEvent.Length) / drawContext.m_TimeStepPerPixel);
Int64 screenXE = screenX + screenLength;
bool nulSized = (screenLength == 0);
// draw a rectangle
rectBrush.Color = m_Data.GetProfileColor(profileEvent.ProfileID);
screenX = Math.Max(-20, screenX);
screenXE = Math.Min(ClientSize.Width + 20, screenXE);
if (screenXE == screenX)
{
screenXE++;
}
screenLength = screenXE - screenX;
int offsetY = 0;
if (profileEvent.EventType == ProfileEventViewer.ProfileEventData.ProfileContext.Event.EventStart)
{
drawContext.Graphics.FillRectangle(rectBrush, screenX, drawContext.m_Y, screenLength, EventHeight);
drawContext.Graphics.DrawRectangle(activeRectPen, screenX + rectOffset, drawContext.m_Y + rectOffset, screenLength - (rectOffset * 2), EventHeight - (rectOffset * 2));
}
else
{
//drawContext.Graphics.FillRectangle(rectBrush, screenX, drawContext.m_Y, screenLength, MarkerHeight);
offsetY = -2 * EventHeight;
rectBrush.Color = Color.Red;
drawContext.Graphics.FillRectangle(rectBrush, screenX, drawContext.m_Y + offsetY, screenLength, EventHeight);
drawContext.Graphics.DrawRectangle(activeRectPen, screenX + rectOffset, drawContext.m_Y + offsetY + rectOffset, screenLength - (rectOffset * 2), EventHeight - (rectOffset * 2));
}
// set the clip region and display the profile name (if there's any chance it could fit)
if ((screenLength > 20) || (profileEvent == m_eventSelection))
{
Region oldClipRegion = drawContext.Graphics.Clip;
drawContext.Graphics.SetClip(new Rectangle((int)screenX + 1, drawContext.m_Y + offsetY, (int)screenLength - 1, EventHeight));
string profileName = String.Format("{0}{1}", (screenX < 0) ? "<< " : "", m_Data.GetProfileName(profileEvent.ProfileID));
string profileTime = String.Format("{0}{1}", (screenX < 0) ? "<< " : "", TimeToString((UInt64)profileEvent.Length));
drawContext.Graphics.DrawString(profileName, barFont, fontBrush, Math.Max(screenX + 1, 0), drawContext.m_Y - 0 + offsetY);
drawContext.Graphics.DrawString(profileTime, barFont, fontBrush, Math.Max(screenX + 1, 0), drawContext.m_Y + 10 + offsetY);
drawContext.Graphics.Clip = oldClipRegion;
}
// must draw the childs (if we were not too small)
if (profileEvent.Child != null && screenLength > 1)
{
drawContext.Graphics.FillRectangle(selfBrush, screenX, drawContext.m_Y + EventHeight, screenLength, EventHeight);
drawContext.m_Y += EventHeight;
Int64 keepColumn = drawContext.overDraw.Reset();
ProfileEventData.ProfileContext.Event child = profileEvent.Child;
while (child != null)
{
DrawEvent(child, ref drawContext);
child = child.Sibling;
}
drawContext.overDraw.Reset(keepColumn);
drawContext.m_Y -= EventHeight;
}
}
}
