using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; namespace MsgClassLibrary { /// <summary> /// Summary description for BitmapRegion. /// </summary> public class BitmapRegion { public BitmapRegion() {} /// <summary> /// Create and apply the region on the supplied control /// 创建支持位图区域的控件(目前有button和form) /// </summary> /// <param name="control">The Control object to apply the region to控件</param> /// <param name="bitmap">The Bitmap object to create the region from位图</param> public void CreateControlRegion(Control control, Bitmap bitmap) { // Return if control and bitmap are null //判断是否存在控件和位图 if(control == null || bitmap == null) return; // Set our control''s size to be the same as the bitmap //设置控件大小为位图大小 control.Width = bitmap.Width; control.Height = bitmap.Height; // Check if we are dealing with Form here //当控件是form时 if(control is System.Windows.Forms.Form) { // Cast to a Form object //强制转换为FORM Form form = (Form)control; // Set our form''s size to be a little larger that the bitmap just // in case the form''s border style is not set to none in the first place //当FORM的边界FormBorderStyle不为NONE时,应将FORM的大小设置成比位图大小稍大一点 form.Width = control.Width; form.Height = control.Height; // No border //没有边界 form.FormBorderStyle = FormBorderStyle.None; // Set bitmap as the background image //将位图设置成窗体背景图片 form.BackgroundImage = bitmap; // Calculate the graphics path based on the bitmap supplied //计算位图中不透明部分的边界 GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap); // Apply new region //应用新的区域 form.Region = new Region(graphicsPath); } // Check if we are dealing with Button here //当控件是button时 else if(control is System.Windows.Forms.Button) { // Cast to a button object //强制转换为 button Button button = (Button)control; // Do not show button text //不显示button text button.Text = ""; // Change cursor to hand when over button //改变 cursor的style button.Cursor = Cursors.Hand; // Set background image of button //设置button的背景图片 // Calculate the graphics path based on the bitmap supplied //计算位图中不透明部分的边界 GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap); // Apply new region //应用新的区域 button.Region = new Region(graphicsPath); button.BackgroundImage = bitmap; } } /// <summary> /// Calculate the graphics path that representing the figure in the bitmap /// excluding the transparent color which is the top left pixel. /// //计算位图中不透明部分的边界 /// </summary> /// <param name="bitmap">The Bitmap object to calculate our graphics path from</param> /// <returns>Calculated graphics path</returns> private static GraphicsPath CalculateControlGraphicsPath(Bitmap bitmap) { GraphicsPath graphicsPath = new GraphicsPath(); Color colorTransparent = bitmap.GetPixel(0, 0); int colOpaquePixel = 0; for(int row = 0; row < bitmap.Height; row ++) { colOpaquePixel = 0; for(int col = 0; col < bitmap.Width; col ++) { if(bitmap.GetPixel(col, row) != colorTransparent) { colOpaquePixel = col; int colNext; for(colNext = colOpaquePixel; colNext < bitmap.Width; colNext ++) { if(bitmap.GetPixel(colNext, row) == colorTransparent) break; } graphicsPath.AddRectangle(new Rectangle(colOpaquePixel, row, colNext - colOpaquePixel, 1)); col = colNext; } } } return graphicsPath; } } }
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace MsgClassLibrary
{
/// <summary>
/// Summary description for BitmapRegion.
/// </summary>
public class BitmapRegion
{
public BitmapRegion()
{}
/// <summary>
/// Create and apply the region on the supplied control
/// 创建支持位图区域的控件(目前有button和form)
/// </summary>
/// <param name="control">The Control object to apply the region to控件</param>
/// <param name="bitmap">The Bitmap object to create the region from位图</param>
public void CreateControlRegion(Control control, Bitmap bitmap)
{
// Return if control and bitmap are null
//判断是否存在控件和位图
if(control == null || bitmap == null)
return; // Set our control''s size to be the same as the bitmap
//设置控件大小为位图大小
control.Width = bitmap.Width;
control.Height = bitmap.Height;
// Check if we are dealing with Form here
//当控件是form时
if(control is System.Windows.Forms.Form)
{
// Cast to a Form object
//强制转换为FORM
Form form = (Form)control;
// Set our form''s size to be a little larger that the bitmap just
// in case the form''s border style is not set to none in the first place
//当FORM的边界FormBorderStyle不为NONE时,应将FORM的大小设置成比位图大小稍大一点
form.Width = control.Width;
form.Height = control.Height;
// No border
//没有边界
form.FormBorderStyle = FormBorderStyle.None;
// Set bitmap as the background image
//将位图设置成窗体背景图片
form.BackgroundImage = bitmap;
// Calculate the graphics path based on the bitmap supplied
//计算位图中不透明部分的边界
GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap);
// Apply new region
//应用新的区域
form.Region = new Region(graphicsPath);
}
// Check if we are dealing with Button here
//当控件是button时
else if(control is System.Windows.Forms.Button)
{
// Cast to a button object
//强制转换为 button
Button button = (Button)control;
// Do not show button text
//不显示button text
button.Text = "";
// Change cursor to hand when over button
//改变 cursor的style
button.Cursor = Cursors.Hand;
// Set background image of button
//设置button的背景图片
// Calculate the graphics path based on the bitmap supplied
//计算位图中不透明部分的边界
GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap);
// Apply new region
//应用新的区域
button.Region = new Region(graphicsPath);
button.BackgroundImage = bitmap;
}
}
/// <summary>
/// Calculate the graphics path that representing the figure in the bitmap
/// excluding the transparent color which is the top left pixel.
/// //计算位图中不透明部分的边界
/// </summary>
/// <param name="bitmap">The Bitmap object to calculate our graphics path from</param>
/// <returns>Calculated graphics path</returns>
private static GraphicsPath CalculateControlGraphicsPath(Bitmap bitmap)
{
GraphicsPath graphicsPath = new GraphicsPath();
Color colorTransparent = bitmap.GetPixel(0, 0);
int colOpaquePixel = 0;
for(int row = 0; row < bitmap.Height; row ++)
{
colOpaquePixel = 0;
for(int col = 0; col < bitmap.Width; col ++)
{
if(bitmap.GetPixel(col, row) != colorTransparent)
{
colOpaquePixel = col;
int colNext;
for(colNext = colOpaquePixel; colNext < bitmap.Width; colNext ++)
{
if(bitmap.GetPixel(colNext, row) == colorTransparent)
break;
}
graphicsPath.AddRectangle(new Rectangle(colOpaquePixel, row, colNext - colOpaquePixel, 1));
col = colNext;
}
}
}
return graphicsPath;
}
}
}
{
BitmapRegion BitmapRegion=new BitmapRegion();//此为生成不规则窗体和控件的类
//this.imageList1.Images.
BitmapRegion.CreateControlRegion(this,new Bitmap("denglu.bmp"));
BitmapRegion.CreateControlRegion(this.button1,new Bitmap("1_1.bmp"));
BitmapRegion.CreateControlRegion(this.button2,new Bitmap("2_1.bmp"));
}
定义的窗体类 的哪个关键的扫描函数
private static GraphicsPath CalculateControlGraphicsPath(Bitmap bitmap)
里面的代码需要优化一下。
希望大家把定义的窗体类 的哪个关键算法优化一下,传上来,一起研究一下。