public static Size GetLeftHandSideTipSize(Control control, Graphics graphics, TipSection tipData, Point p) { Size tipSize = Size.Empty; SizeF tipSizeF = SizeF.Empty; RectangleF workingArea = GetWorkingArea(control); PointF screenLocation = p; SizeF maxLayoutSize = new SizeF(screenLocation.X - HorizontalBorder * 2, workingArea.Bottom - screenLocation.Y - VerticalBorder * 2); if (maxLayoutSize.Width > 0 && maxLayoutSize.Height > 0) { graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit; tipData.SetMaximumSize(maxLayoutSize); tipSizeF = tipData.GetRequiredSize(); tipData.SetAllocatedSize(tipSizeF); tipSizeF += new SizeF(HorizontalBorder * 2, VerticalBorder * 2); tipSize = Size.Ceiling(tipSizeF); } return tipSize; }
public static Size DrawTip(Control control, Graphics graphics, TipSection tipData) { Size tipSize = Size.Empty; SizeF tipSizeF = SizeF.Empty; PointF screenLocation = control.PointToScreen(Point.Empty); RectangleF workingArea = GetWorkingArea(control); SizeF maxLayoutSize = new SizeF(workingArea.Right - screenLocation.X - HorizontalBorder * 2, workingArea.Bottom - screenLocation.Y - VerticalBorder * 2); if (maxLayoutSize.Width > 0 && maxLayoutSize.Height > 0) { graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit; tipData.SetMaximumSize(maxLayoutSize); tipSizeF = tipData.GetRequiredSize(); tipData.SetAllocatedSize(tipSizeF); tipSizeF += new SizeF(HorizontalBorder * 2, VerticalBorder * 2); tipSize = Size.Ceiling(tipSizeF); } if (control.ClientSize != tipSize) { control.ClientSize = tipSize; } if (tipSize != Size.Empty) { Rectangle borderRectangle = new Rectangle (Point.Empty, tipSize - new Size(1, 1)); RectangleF displayRectangle = new RectangleF (HorizontalBorder, VerticalBorder, tipSizeF.Width - HorizontalBorder * 2, tipSizeF.Height - VerticalBorder * 2); // DrawRectangle draws from Left to Left + Width. A bug? :-/ graphics.DrawRectangle(SystemPens.WindowFrame, borderRectangle); tipData.Draw(new PointF(HorizontalBorder, VerticalBorder)); } return tipSize; }