/// <summary>
/// 使用渐变色渲染矩形内部区域
/// </summary>
/// <param name="graphics">GDI+ 绘图图面</param>
/// <param name="rect">存储一组整数，共四个，表示一个矩形的位置和大小</param>
/// <param name="gradientColor">渐变颜色</param>
public static void FillRectangle(Graphics graphics, Rectangle rect, AuroraGradientColor gradientColor)
{
if (rect.Width <= 0 || rect.Height <= 0 || graphics == null)
{
return;
}
using (LinearGradientBrush brush = new LinearGradientBrush(rect, gradientColor.FromColor, gradientColor.ToColor, gradientColor.GradientMode))
{
brush.Blend.Factors = gradientColor.Factors;
brush.Blend.Positions = gradientColor.Positions;
graphics.FillRectangle(brush, rect);
}
}
/// <summary>
/// 使用渐变色渲染GraphicsPath内部区域
/// </summary>
/// <param name="graphics">GDI+ 绘图图面</param>
/// <param name="graphicsPath">表示一系列相互连接的直线和曲线</param>
/// <param name="rect">存储一组整数，共四个，表示一个矩形的位置和大小</param>
/// <param name="gradientColor">渐变颜色</param>
public static void FillPath(Graphics graphics, GraphicsPath graphicsPath, Rectangle rect, AuroraGradientColor gradientColor)
{
if (graphicsPath == null || graphics == null || rect.Width <= 0 || rect.Height <= 0)
{
return;
}
using (LinearGradientBrush brush = new LinearGradientBrush(rect, gradientColor.FromColor, gradientColor.ToColor, gradientColor.GradientMode))
{
brush.Blend.Factors = gradientColor.Factors ?? (new float[] { });
brush.Blend.Positions = gradientColor.Positions ?? (new float[] { });
graphics.FillPath(brush, graphicsPath);
}
}
/// <summary>
/// 使用渐变色渲染GraphicsPath内部区域
/// </summary>
/// <param name="graphics">GDI+ 绘图图面</param>
/// <param name="graphicsPath">表示一系列相互连接的直线和曲线</param>
/// <param name="rect">存储一组整数，共四个，表示一个矩形的位置和大小</param>
/// <param name="fColor">起始颜色</param>
/// <param name="tColor">结束颜色</param>
/// <param name="blend">色彩混合渲染方案</param>
/// <param name="gradientMode">线性渐变模式</param>
public static void FillPath(Graphics graphics, GraphicsPath graphicsPath, Rectangle rect, Color fColor, Color tColor, Blend blend, LinearGradientMode gradientMode)
{
AuroraGradientColor gradientColor = new AuroraGradientColor(fColor, tColor, gradientMode, blend);
FillPath(graphics, graphicsPath, rect, gradientColor);
}
