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)
{
bool bDrawLogo = NeedDrawLogo(toolStrip);
int offsetMargin = bDrawLogo ? OffsetMargin : 0;
ToolStripMenuItem item = (ToolStripMenuItem)e.Item;
if (item.Checked)
{
return;
}
Rectangle rect = e.ImageRectangle;
if (e.Item.RightToLeft == RightToLeft.Yes)
{
rect.X -= offsetMargin + 2;
}
else
{
rect.X += offsetMargin + 2;
}
using (InterpolationModeGraphics ig =
new InterpolationModeGraphics(g))
{
ToolStripItemImageRenderEventArgs ne =
new ToolStripItemImageRenderEventArgs(
g, e.Item, e.Image, rect);
base.OnRenderItemImage(ne);
}
}
else
{
base.OnRenderItemImage(e);
}
}
private void RenderImageAndText(System.Drawing.Graphics g, Rectangle captionRect)
{
Rectangle imageRect = Rectangle.Empty;
Rectangle textRect = Rectangle.Empty;
int bordWidth = base.BorderWidth;
int imageWidth = _captionHeight - 6;
StringFormat sf = new StringFormat();
sf.FormatFlags = StringFormatFlags.NoWrap;
sf.Trimming = StringTrimming.EllipsisCharacter;
bool rightToLeft = base.RightToLeft == RightToLeft.Yes;
if (rightToLeft)
{
sf.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
}
switch (_captionStyle)
{
case CaptionStyle.Top:
case CaptionStyle.Bottom:
if (_image != null)
{
imageRect = new Rectangle(
bordWidth, captionRect.Y + 3, imageWidth, imageWidth);
}
else
{
imageRect.X = bordWidth - 3;
}
textRect = new Rectangle(
imageRect.Right + 3,
captionRect.Y,
captionRect.Width - (imageRect.Right + 3) - bordWidth,
captionRect.Height);
if (rightToLeft)
{
imageRect.X = captionRect.Right - imageRect.Right;
textRect.X = captionRect.Right - textRect.Right;
}
sf.LineAlignment = StringAlignment.Center;
switch (_textAlign)
{
case ContentAlignment.BottomCenter:
case ContentAlignment.MiddleCenter:
case ContentAlignment.TopCenter:
sf.Alignment = StringAlignment.Center;
break;
case ContentAlignment.BottomLeft:
case ContentAlignment.MiddleLeft:
case ContentAlignment.TopLeft:
sf.Alignment = StringAlignment.Near;
break;
case ContentAlignment.BottomRight:
case ContentAlignment.MiddleRight:
case ContentAlignment.TopRight:
sf.Alignment = StringAlignment.Far;
break;
}
if (!string.IsNullOrEmpty(base.Text))
{
using(Brush brush = new SolidBrush(ColorTable.CaptionFore))
{
g.DrawString(
base.Text,
_captionFont,
brush,
textRect,
sf);
}
}
break;
case CaptionStyle.Left:
if (_image != null)
{
imageRect = new Rectangle(
captionRect.X + 3, captionRect.Bottom - bordWidth - imageWidth,
imageWidth, imageWidth);
}
else
{
imageRect.Y = captionRect.Bottom - (bordWidth - 3);
}
textRect = new Rectangle(
captionRect.X,
captionRect.Y + bordWidth,
captionRect.Width,
imageRect.Y - 3 - bordWidth);
if (rightToLeft)
{
imageRect.Y = captionRect.Bottom - imageRect.Bottom;
textRect.Y = captionRect.Bottom - textRect.Bottom;
}
sf.LineAlignment = StringAlignment.Center;
switch (_textAlign)
{
case ContentAlignment.BottomCenter:
case ContentAlignment.MiddleCenter:
case ContentAlignment.TopCenter:
sf.Alignment = StringAlignment.Center;
break;
case ContentAlignment.BottomLeft:
case ContentAlignment.MiddleLeft:
case ContentAlignment.TopLeft:
sf.Alignment = StringAlignment.Near;
break;
case ContentAlignment.BottomRight:
case ContentAlignment.MiddleRight:
case ContentAlignment.TopRight:
sf.Alignment = StringAlignment.Far;
break;
}
RenderHelper.RenderVerticalText(
g,
base.Text,
textRect,
_captionFont,
ColorTable.CaptionFore,
sf,
true);
break;
case CaptionStyle.Right:
if (_image != null)
{
imageRect = new Rectangle(
captionRect.X + 3, bordWidth,
imageWidth, imageWidth);
}
else
{
imageRect.Y = bordWidth - 3;
}
textRect = new Rectangle(
captionRect.X,
imageRect.Bottom + 3,
captionRect.Width,
captionRect.Height - (imageRect.Bottom + 3) - bordWidth);
if (rightToLeft)
{
imageRect.Y = captionRect.Bottom - imageRect.Bottom;
textRect.Y = captionRect.Bottom - textRect.Bottom;
}
sf.LineAlignment = StringAlignment.Center;
switch (_textAlign)
{
case ContentAlignment.BottomCenter:
case ContentAlignment.MiddleCenter:
case ContentAlignment.TopCenter:
sf.Alignment = StringAlignment.Center;
break;
case ContentAlignment.BottomLeft:
case ContentAlignment.MiddleLeft:
case ContentAlignment.TopLeft:
sf.Alignment = StringAlignment.Near;
break;
case ContentAlignment.BottomRight:
case ContentAlignment.MiddleRight:
case ContentAlignment.TopRight:
sf.Alignment = StringAlignment.Far;
break;
}
RenderHelper.RenderVerticalText(
g,
base.Text,
textRect,
_captionFont,
ColorTable.CaptionFore,
sf,
false);
break;
}
if (_image != null)
{
using (InterpolationModeGraphics ig = new InterpolationModeGraphics(g))
{
g.DrawImage(
_image,
imageRect,
0,
0,
_image.Width,
_image.Height,
GraphicsUnit.Pixel);
}
}
}
