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自定义窗体美化
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;
namespace Demo
{
/// <summary>
/// 窗体自绘辅助类
/// </summary>
public class RenderHelper
{
/// <summary>
/// 设置窗体的圆角矩形
/// </summary>
/// <param name="form">需要设置的窗体</param>
/// <param name="rgnRadius">圆角矩形的半径</param>
public static void SetFormRoundRectRgn(Form form, int rgnRadius)
{
int hRgn = 0;
hRgn = Win32.CreateRoundRectRgn(0, 0, form.Width 1, form.Height 1, rgnRadius, rgnRadius);
Win32.SetWindowRgn(form.Handle, hRgn, true);
Win32.DeleteObject(hRgn);
}
/// <summary>
/// 移动窗体
/// </summary>
public static void MoveWindow(Form form)
{
Win32.ReleaseCapture();
Win32.SendMessage(form.Handle, Win32.WM_NCLBUTTONDOWN, Win32.HTCAPTION, 0);
}
/// <summary>
/// 取低位 X 坐标
/// </summary>
public static int LOWORD(int value)
{
return value & 0xFFFF;
}
/// <summary>
/// 取高位 Y 坐标
/// </summary>
public static int HIWORD(int value)
{
return value >> 16;
}
/// <summary>
/// 绘制窗体边框
/// </summary>
/// <param name="destForm">需要绘制边框的窗体</param>
/// <param name="g">绘制边框所用的绘图对象</param>
/// <param name="fringeImg">边框图片</param>
/// <param name="radius">边框的圆角矩形</param>
public static void DrawFormFringe(Form destForm, Graphics g, Image fringeImg, int radius)
{
DrawNineRect(
g,
fringeImg,
new Rectangle(-radius, -radius, destForm.ClientSize.Width 2 * radius, destForm.ClientSize.Height 2 * radius),
new Rectangle(0, 0, fringeImg.Width, fringeImg.Height));
}
/// <summary>
/// 画九宫图
/// </summary>
/// <param name="g">绘图对象</param>
/// <param name="img">所需绘制的图片</param>
/// <param name="DestRect">目标矩形</param>
/// <param name="SrcRect">来源矩形</param>
public static void DrawNineRect(Graphics g, Image img, Rectangle DestRect, Rectangle SrcRect)
{
int offset = 5;
Rectangle NineRect = new Rectangle(img.Width / 2 - offset, img.Height / 2 - offset, 2 * offset, 2 * offset);
int x = 0, y = 0, nWidth, nHeight;
int xSrc = 0, ySrc = 0, nSrcWidth, nSrcHeight;
int nDestWidth, nDestHeight;
nDestWidth = DestRect.Width;
nDestHeight = DestRect.Height;
// 左上-------------------------------------;
x = DestRect.Left;
y = DestRect.Top;
nWidth = NineRect.Left - SrcRect.Left;
nHeight = NineRect.Top - SrcRect.Top;
xSrc = SrcRect.Left;
ySrc = SrcRect.Top;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nWidth, nHeight, GraphicsUnit.Pixel);
// 上-------------------------------------;
x = DestRect.Left NineRect.Left - SrcRect.Left;
nWidth = nDestWidth - nWidth - (SrcRect.Right - NineRect.Right);
xSrc = NineRect.Left;
nSrcWidth = NineRect.Right - NineRect.Left;
nSrcHeight = NineRect.Top - SrcRect.Top;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nSrcWidth, nSrcHeight, GraphicsUnit.Pixel);
// 右上-------------------------------------;
x = DestRect.Right - (SrcRect.Right - NineRect.Right);
nWidth = SrcRect.Right - NineRect.Right;
xSrc = NineRect.Right;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nWidth, nHeight, GraphicsUnit.Pixel);
// 左-------------------------------------;
x = DestRect.Left;
y = DestRect.Top NineRect.Top - SrcRect.Top;
nWidth = NineRect.Left - SrcRect.Left;
nHeight = DestRect.Bottom - y - (SrcRect.Bottom - NineRect.Bottom);
xSrc = SrcRect.Left;
ySrc = NineRect.Top;
nSrcWidth = NineRect.Left - SrcRect.Left;
nSrcHeight = NineRect.Bottom - NineRect.Top;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nSrcWidth, nSrcHeight, GraphicsUnit.Pixel);
// 中-------------------------------------;
x = DestRect.Left NineRect.Left - SrcRect.Left;
nWidth = nDestWidth - nWidth - (SrcRect.Right - NineRect.Right);
xSrc = NineRect.Left;
nSrcWidth = NineRect.Right - NineRect.Left;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nSrcWidth, nSrcHeight, GraphicsUnit.Pixel);
// 右-------------------------------------;
x = DestRect.Right - (SrcRect.Right - NineRect.Right);
nWidth = SrcRect.Right - NineRect.Right;
xSrc = NineRect.Right;
nSrcWidth = SrcRect.Right - NineRect.Right;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nSrcWidth, nSrcHeight, GraphicsUnit.Pixel);
// 左下-------------------------------------;
x = DestRect.Left;
y = DestRect.Bottom - (SrcRect.Bottom - NineRect.Bottom);
nWidth = NineRect.Left - SrcRect.Left;
nHeight = SrcRect.Bottom - NineRect.Bottom;
xSrc = SrcRect.Left;
ySrc = NineRect.Bottom;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nWidth, nHeight, GraphicsUnit.Pixel);
// 下-------------------------------------;
x = DestRect.Left NineRect.Left - SrcRect.Left;
nWidth = nDestWidth - nWidth - (SrcRect.Right - NineRect.Right);
xSrc = NineRect.Left;
nSrcWidth = NineRect.Right - NineRect.Left;
nSrcHeight = SrcRect.Bottom - NineRect.Bottom;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nSrcWidth, nSrcHeight, GraphicsUnit.Pixel);
// 右下-------------------------------------;
x = DestRect.Right - (SrcRect.Right - NineRect.Right);
nWidth = SrcRect.Right - NineRect.Right;
xSrc = NineRect.Right;
g.DrawImage(img, new Rectangle(x, y, nWidth, nHeight), xSrc, ySrc, nWidth, nHeight, GraphicsUnit.Pixel);
}
/// <summary>
/// 绘制窗体主体部分白色透明层
/// </summary>
/// <param name="form">需要绘制的窗体</param>
/// <param name="g">绘图对象</param>
public static void DrawFromAlphaMainPart(Form form, Graphics g)
{
Color[] colors =
{
Color.FromArgb(5, Color.White),
Color.FromArgb(30, Color.White),
Color.FromArgb(150, Color.White),
Color.FromArgb(180, Color.White),
Color.FromArgb(30, Color.White),
Color.FromArgb(5, Color.White)
};
float[] pos =
{
0.0f,
0.05f,
0.15f,
0.85f,
0.99f,
1.0f
};
ColorBlend colorBlend = new ColorBlend(6);
colorBlend.Colors = colors;
colorBlend.Positions = pos;
RectangleF destRect = new RectangleF(0, 0, form.Width, form.Height);
using (LinearGradientBrush lBrush = new LinearGradientBrush(destRect, colors[0], colors[5], LinearGradientMode.Vertical))
{
lBrush.InterpolationColors = colorBlend;
g.FillRectangle(lBrush, destRect);
}
}
}
}