public DeltaHistogram()
{
base.GetItemValue = (di) => di.BytesDelta;
base.GetItemText = (di) => di.Traceback.Frames.Array[di.Traceback.Frames.Offset].Function;
base.GetItemTooltip = (di) => {
var sf = CustomTooltip.GetDefaultStringFormat();
var content = new DeltaInfoTooltipContent(
di, new DeltaInfo.RenderParams {
BackgroundBrush = new SolidBrush(SystemColors.Info),
BackgroundColor = SystemColors.Info,
TextBrush = new SolidBrush(SystemColors.InfoText),
IsExpanded = true,
IsSelected = false,
FunctionHighlightBrush = new SolidBrush(SystemColors.Highlight),
FunctionHighlightTextBrush = new SolidBrush(SystemColors.HighlightText),
FunctionFilter = FunctionFilter,
ShadeBrush = new SolidBrush(Color.FromArgb(31, 0, 0, 0)),
StringFormat = sf
}
);
return(content);
};
}
protected void ShowTooltip(int itemIndex, Point location)
{
if (Tooltip == null)
{
Tooltip = new CustomTooltip(this);
}
var item = Items[itemIndex];
var sf = CustomTooltip.GetDefaultStringFormat();
using (var g = CreateGraphics()) {
var content = new DeltaInfoTooltipContent(
item, new DeltaInfo.RenderParams {
BackgroundBrush = new SolidBrush(SystemColors.Info),
BackgroundColor = SystemColors.Info,
TextBrush = new SolidBrush(SystemColors.InfoText),
IsExpanded = true,
IsSelected = false,
FunctionHighlightBrush = new SolidBrush(SystemColors.Highlight),
FunctionHighlightTextBrush = new SolidBrush(SystemColors.HighlightText),
FunctionFilter = FunctionFilter,
Font = Font,
ShadeBrush = new SolidBrush(Color.FromArgb(31, 0, 0, 0)),
StringFormat = sf
}
)
{
Location = this.PointToScreen(location)
};
CustomTooltip.FitContentOnScreen(
g, content,
ref content.RenderParams.Font,
ref content.Location, ref content.Size
);
Tooltip.SetContent(content);
}
if (_HoverIndex != itemIndex)
{
var oldIndex = _HoverIndex;
_HoverIndex = itemIndex;
InvalidateItem(oldIndex);
InvalidateItem(_HoverIndex);
}
}