private void ToolTipExDraw(
object sender, DrawToolTipEventArgs e)
{
Graphics g = e.Graphics;
Rectangle bounds = e.Bounds;
int alpha = (int)(_opacity * 255);
int defaultXOffset = 12;
int defaultTopHeight = 36;
int tipTextXOffset = 3;
int tipTextYOffset = 3;
if (Handle != IntPtr.Zero && _opacity < 1D)
{
IntPtr hDC = g.GetHdc();
NativeMethods.BitBlt(
hDC, 0, 0, bounds.Width, bounds.Height,
_backDc.Hdc, 0, 0, 0xCC0020);
g.ReleaseHdc(hDC);
}
Color backNormalColor = Color.FromArgb(
alpha, this.BackColor);
Color baseColor = Color.FromArgb(
alpha, ColorTable.BackHover);
Color borderColor = Color.FromArgb(
alpha, ColorTable.Border);
using (LinearGradientBrush brush = new LinearGradientBrush(
bounds,
backNormalColor,
baseColor,
LinearGradientMode.Vertical))
{
g.FillRectangle(brush, bounds);
}
ControlPaint.DrawBorder(
g,
bounds,
borderColor,
ButtonBorderStyle.Solid);
Rectangle imageRect = Rectangle.Empty;
Rectangle titleRect;
Rectangle tipRect;
if (base.ToolTipIcon != ToolTipIcon.None)
{
tipTextXOffset = defaultXOffset;
tipTextYOffset = defaultTopHeight;
imageRect = new Rectangle(
bounds.X + defaultXOffset - (ImageSize.Width - 16) / 2,
bounds.Y + (defaultTopHeight - _imageSize.Height) / 2,
_imageSize.Width,
_imageSize.Height);
Image image = _image;
bool bDispose = false;
if (image == null)
{
Icon icon = GetIcon();
if (icon != null)
{
image = icon.ToBitmap();
bDispose = true;
}
}
if (image != null)
{
using (InterpolationModeGraphics ig =
new InterpolationModeGraphics(g))
{
if (_opacity < 1D)
{
ToolTipRenderHelper.RenderAlphaImage(
g,
image,
imageRect,
(float)_opacity);
}
else
{
g.DrawImage(
image,
imageRect,
0,
0,
image.Width,
image.Height,
GraphicsUnit.Pixel);
}
}
if (bDispose)
{
image.Dispose();
}
}
}
StringFormat sf = new StringFormat();
sf.LineAlignment = StringAlignment.Center;
if (!string.IsNullOrEmpty(base.ToolTipTitle))
{
tipTextXOffset = defaultXOffset;
tipTextYOffset = defaultTopHeight;
int x = imageRect.IsEmpty ?
defaultXOffset : imageRect.Right + 3;
titleRect = new Rectangle(
x,
bounds.Y,
bounds.Width - x,
defaultTopHeight);
Color foreColor = Color.FromArgb(
alpha, ColorTable.TitleFore);
using (Brush brush = new SolidBrush(foreColor))
{
g.DrawString(
base.ToolTipTitle,
_titleFont,
brush,
titleRect,
sf);
}
}
if (!string.IsNullOrEmpty(e.ToolTipText))
{
tipRect = new Rectangle(
bounds.X + tipTextXOffset,
bounds.Y + tipTextYOffset,
bounds.Width - tipTextXOffset * 2,
bounds.Height - tipTextYOffset);
sf = StringFormat.GenericTypographic;
Color foreColor = Color.FromArgb(
alpha, ColorTable.TipFore);
using (Brush brush = new SolidBrush(foreColor))
{
g.DrawString(
e.ToolTipText,
e.Font,
brush,
tipRect,
sf);
}
}
}
protected override void OnRenderItemImage(
ToolStripItemImageRenderEventArgs e)
{
ToolStrip toolStrip = e.ToolStrip;
Graphics g = e.Graphics;
if (toolStrip is ToolStripDropDown &&
e.Item is ToolStripMenuItem)
{
ToolStripMenuItem item = (ToolStripMenuItem)e.Item;
if (item.Checked)
{
return;
}
Rectangle rect = e.ImageRectangle;
if (e.Item.RightToLeft == RightToLeft.Yes)
{
rect.X -= 2;
}
else
{
rect.X += 2;
}
using (InterpolationModeGraphics ig =
new InterpolationModeGraphics(g))
{
ToolStripItemImageRenderEventArgs ne =
new ToolStripItemImageRenderEventArgs(
g, e.Item, e.Image, rect);
base.OnRenderItemImage(ne);
}
}
else
{
base.OnRenderItemImage(e);
}
}