internal static void RenderBackgroundInternal(
Graphics G,
Rectangle Rect,
Color BaseColor,
Color BorderColor,
Color InnerBorderColor,
ToolTipRoundStyle RStyle,
int RoundWidth,
bool DrawBorder,
bool DrawGlass,
LinearGradientMode Mode)
{
RenderBackgroundInternal(
G,
Rect,
BaseColor,
BorderColor,
InnerBorderColor,
RStyle,
8,
0.45f,
DrawBorder,
DrawGlass,
Mode);
}
public static void CreateRegion(
Control Ctrl,
Rectangle BoundsRect,
int Radius,
ToolTipRoundStyle RStyle)
{
using (GraphicsPath path = ToolTipGraphicsPathHelper.CreatePath(BoundsRect, Radius, RStyle, true))
{
Region region = new Region(path);
path.Widen(Pens.White);
region.Union(path);
if (Ctrl.Region != null)
{
Ctrl.Region.Dispose();
}
Ctrl.Region = region;
}
}
internal static void RenderBackgroundInternal(
Graphics G,
Rectangle Rect,
Color BaseColor,
Color BorderColor,
Color InnerBorderColor,
ToolTipRoundStyle Style,
int RoundWidth,
float BasePosition,
bool DrawBorder,
bool DrawGlass,
LinearGradientMode Mode)
{
if (DrawBorder)
{
Rect.Width--;
Rect.Height--;
}
using (LinearGradientBrush brush = new LinearGradientBrush(Rect, Color.Transparent, Color.Transparent, Mode))
{
Color[] colors = new Color[4];
colors[0] = GetColor(BaseColor, 0, 35, 24, 9);
colors[1] = GetColor(BaseColor, 0, 13, 8, 3);
colors[2] = BaseColor;
colors[3] = GetColor(BaseColor, 0, 35, 24, 9);
ColorBlend blend = new ColorBlend();
blend.Positions = new float[] { 0.0f, BasePosition, BasePosition + 0.05f, 1.0f };
blend.Colors = colors;
brush.InterpolationColors = blend;
if (Style != ToolTipRoundStyle.None)
{
using (GraphicsPath path = ToolTipGraphicsPathHelper.CreatePath(Rect, RoundWidth, Style, false))
{
G.FillPath(brush, path);
}
if (BaseColor.A > 80)
{
Rectangle rectTop = Rect;
if (Mode == LinearGradientMode.Vertical)
{
rectTop.Height = (int)(rectTop.Height * BasePosition);
}
else
{
rectTop.Width = (int)(Rect.Width * BasePosition);
}
using (GraphicsPath pathTop = ToolTipGraphicsPathHelper.CreatePath(rectTop, RoundWidth, ToolTipRoundStyle.Top, false))
{
using (SolidBrush brushAlpha = new SolidBrush(Color.FromArgb(128, 255, 255, 255)))
{
G.FillPath(brushAlpha, pathTop);
}
}
}
if (DrawGlass)
{
RectangleF glassRect = Rect;
if (Mode == LinearGradientMode.Vertical)
{
glassRect.Y = Rect.Y + Rect.Height * BasePosition;
glassRect.Height = (Rect.Height - Rect.Height * BasePosition) * 2;
}
else
{
glassRect.X = Rect.X + Rect.Width * BasePosition;
glassRect.Width = (Rect.Width - Rect.Width * BasePosition) * 2;
}
ToolTipControlPaintEx.DrawGlass(G, glassRect, 170, 0);
}
if (DrawBorder)
{
using (GraphicsPath path = ToolTipGraphicsPathHelper.CreatePath(Rect, RoundWidth, Style, false))
{
using (Pen pen = new Pen(BorderColor))
{
G.DrawPath(pen, path);
}
}
Rect.Inflate(-1, -1);
using (GraphicsPath path = ToolTipGraphicsPathHelper.CreatePath(Rect, RoundWidth, Style, false))
{
using (Pen pen = new Pen(InnerBorderColor))
{
G.DrawPath(pen, path);
}
}
}
}
else
{
G.FillRectangle(brush, Rect);
if (BaseColor.A > 80)
{
Rectangle rectTop = Rect;
if (Mode == LinearGradientMode.Vertical)
{
rectTop.Height = (int)(rectTop.Height * BasePosition);
}
else
{
rectTop.Width = (int)(Rect.Width * BasePosition);
}
using (SolidBrush brushAlpha = new SolidBrush(Color.FromArgb(128, 255, 255, 255)))
{
G.FillRectangle(brushAlpha, rectTop);
}
}
if (DrawGlass)
{
RectangleF glassRect = Rect;
if (Mode == LinearGradientMode.Vertical)
{
glassRect.Y = Rect.Y + Rect.Height * BasePosition;
glassRect.Height = (Rect.Height - Rect.Height * BasePosition) * 2;
}
else
{
glassRect.X = Rect.X + Rect.Width * BasePosition;
glassRect.Width = (Rect.Width - Rect.Width * BasePosition) * 2;
}
ToolTipControlPaintEx.DrawGlass(G, glassRect, 200, 0);
}
if (DrawBorder)
{
using (Pen pen = new Pen(BorderColor))
{
G.DrawRectangle(pen, Rect);
}
Rect.Inflate(-1, -1);
using (Pen pen = new Pen(InnerBorderColor))
{
G.DrawRectangle(pen, Rect);
}
}
}
}
}
/// <summary>
/// 建立帶有圓角的樣式的路徑。
/// </summary>
/// <param name="Rect">用來建立路徑的矩形。</param>
/// <param name="Radius">圓角的大小。</param>
/// <param name="Style">圓角的樣式。</param>
/// <param name="Correction">是否把矩形長寬减 1,以便畫出邊框。</param>
/// <returns>建立的路徑。</returns>
public static GraphicsPath CreatePath(
Rectangle Rect, int Radius, ToolTipRoundStyle Style, bool Correction)
{
GraphicsPath path = new GraphicsPath();
int radiusCorrection = Correction ? 1 : 0;
switch (Style)
{
case ToolTipRoundStyle.None:
path.AddRectangle(Rect);
break;
case ToolTipRoundStyle.All:
path.AddArc(Rect.X, Rect.Y, Radius, Radius, 180, 90);
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Y,
Radius,
Radius,
270,
90);
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius, 0, 90);
path.AddArc(
Rect.X,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
90,
90);
break;
case ToolTipRoundStyle.Left:
path.AddArc(Rect.X, Rect.Y, Radius, Radius, 180, 90);
path.AddLine(
Rect.Right - radiusCorrection, Rect.Y,
Rect.Right - radiusCorrection, Rect.Bottom - radiusCorrection);
path.AddArc(
Rect.X,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
90,
90);
break;
case ToolTipRoundStyle.Right:
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Y,
Radius,
Radius,
270,
90);
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
0,
90);
path.AddLine(Rect.X, Rect.Bottom - radiusCorrection, Rect.X, Rect.Y);
break;
case ToolTipRoundStyle.Top:
path.AddArc(Rect.X, Rect.Y, Radius, Radius, 180, 90);
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Y,
Radius,
Radius,
270,
90);
path.AddLine(
Rect.Right - radiusCorrection, Rect.Bottom - radiusCorrection,
Rect.X, Rect.Bottom - radiusCorrection);
break;
case ToolTipRoundStyle.Bottom:
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
0,
90);
path.AddArc(
Rect.X,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
90,
90);
path.AddLine(Rect.X, Rect.Y, Rect.Right - radiusCorrection, Rect.Y);
break;
case ToolTipRoundStyle.BottomLeft:
path.AddArc(
Rect.X,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
90,
90);
path.AddLine(Rect.X, Rect.Y, Rect.Right - radiusCorrection, Rect.Y);
path.AddLine(
Rect.Right - radiusCorrection,
Rect.Y,
Rect.Right - radiusCorrection,
Rect.Bottom - radiusCorrection);
break;
case ToolTipRoundStyle.BottomRight:
path.AddArc(
Rect.Right - Radius - radiusCorrection,
Rect.Bottom - Radius - radiusCorrection,
Radius,
Radius,
0,
90);
path.AddLine(Rect.X, Rect.Bottom - radiusCorrection, Rect.X, Rect.Y);
path.AddLine(Rect.X, Rect.Y, Rect.Right - radiusCorrection, Rect.Y);
break;
}
path.CloseFigure();
return(path);
}
