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简单的图片浏览器

吕德惠
2023-12-01

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

 

namespace 图片浏览器
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Bitmap MyBitmap;

        private void button1_Click(object sender, EventArgs e)
        {
            //string myname;
            openFileDialog1.Filter = "(*.jpg)|*.jpg|(*.bmp)|*.bmp|(*.gif)|*.gif|(*.ico)|*.ico|(*.png)|*.png|(*.*)|*.*";
            //openFileDialog1.ShowDialog();
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                //在控件上显示图片方法1
                //myname = openFileDialog1.FileName;
                //pictureBox1.Image = Image.FromFile(myname);

                //在控件上显示图片方法2
                if (this.openFileDialog1.FileName.Trim() == "")
                    return;
                try
                {
                    Bitmap SrcBitmap = new Bitmap(this.openFileDialog1.FileName);
                    MyBitmap = new Bitmap(SrcBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
                    this.pictureBox1.Image = MyBitmap; //在控件上显示图片
                }
                catch
                {
                    MessageBox.Show("打开文件错误");
                }
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //缩小图像
            if (pictureBox1.Width >= 50)
            {
                pictureBox1.Width = Convert.ToInt32(pictureBox1.Width * 0.8);
                pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 0.8);
            }
            else
            {
                MessageBox.Show(this, "图像已是最小，不能再小了", "提示对话框", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
           //放大图像
            if (pictureBox1.Width < this.Width)
            {
                pictureBox1.Width = Convert.ToInt32(pictureBox1.Width * 1.2);
                pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 1.2);
            }
            else
            {
                MessageBox.Show(this, "已经是最大不能再大了", "提示对话框", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }

        private void button6_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            //图片上增加文字，单色
            if (textBox1.Text != "")
            {
                Graphics g = pictureBox1.CreateGraphics();
                SolidBrush brush = new SolidBrush(Color.Red); //定义画笔类型及其颜色
                Font myfont = new Font("黑体", 20);
                //调用DrawString方法在图像上写文字
                g.DrawString(textBox1.Text, myfont, brush, new Rectangle(120, 5, 280, 120));
            }
            else
            {
                MessageBox.Show("请输入要加载的文字", "提示圣对话框", MessageBoxButtons.OK,MessageBoxIcon.Warning );
            }
        }

        private void button5_Click(object sender, EventArgs e)
        {
            //图片上增加文字，渐变
            if (textBox1.Text != "")
            {
                Graphics g = pictureBox1.CreateGraphics();
                //定义线形画笔
                LinearGradientBrush mybrush = new LinearGradientBrush(ClientRectangle, Color.Yellow, Color.Red,
                    LinearGradientMode.BackwardDiagonal);
                Font myfont = new Font("隶书", 25);
                g.DrawString(textBox1.Text, myfont, mybrush, new Rectangle(120, 50, 280, 100));

            }
            else
            {
                MessageBox.Show(this,"请输入要加载的文字", "提示对话框", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }

        private void button7_Click(object sender, EventArgs e)
        {
            //水平遮罩
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            Bitmap bitmap = new Bitmap(iWidth, iHeight);

            int x = 0;
            while (x <= iWidth / 2)
            {
                for (int i = 0; i <= iHeight - 1; i++)
                {
                    //调用SetPixel方法.MyBitmap.GetPixel(x, i)=>获取picturebox中图片的颜色
                    //bitmap.SetPixel(x, i, MyBitmap.GetPixel(x, i))在新的bitmap中图片的颜色
                    //左边遮罩
                    bitmap.SetPixel(x, i, MyBitmap.GetPixel(x, i));
                }
                for (int i = 0; i <= iHeight - 1; i++)
                {
                    //右边遮罩
                    bitmap.SetPixel(iWidth - x - 1, i, MyBitmap.GetPixel(iWidth - x - 1, i));
                }
                x++;
                this.pictureBox1.Refresh();
                this.pictureBox1.Image = bitmap;
                System.Threading.Thread.Sleep(3);
            }
        }

        private void button8_Click(object sender, EventArgs e)
        {
            //垂直遮罩
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            Bitmap bitmap = new Bitmap(iWidth, iHeight);

            int x = 0;
            while (x <= iHeight / 2)
            {
                for (int i = 0; i <= iWidth - 1; i++)
                {
                    bitmap.SetPixel(i,x, MyBitmap.GetPixel(i,x)); //调用SetPixel方法
                }
                for (int i = 0; i <= iWidth - 1; i++)
                {
                    bitmap.SetPixel(i,iHeight - x - 1, MyBitmap.GetPixel(i,iHeight - x - 1));
                }
                x++;
                this.pictureBox1.Refresh();
                this.pictureBox1.Image = bitmap;
                System.Threading.Thread.Sleep(3);
            }

        }

        private void button9_Click(object sender, EventArgs e)
        {
            //上下拉抻
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            for (int y = 0; y < iHeight; y++)
            {
                g.DrawImage(MyBitmap, 0, 0, iWidth, y);
                System.Threading.Thread.Sleep(3);
            }
        }

        private void button10_Click(object sender, EventArgs e)
        {
            //左右拉伸
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            for (int x = 0; x < iWidth ; x++)
            {
                g.DrawImage(MyBitmap, 0, 0, x,iHeight);
                System.Threading.Thread.Sleep(3);
            }

        }

        private void button11_Click(object sender, EventArgs e)
        {
            //两边拉伸
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            for (int y = 0; y <= iWidth / 2; y++)
            {
                Rectangle DestRect = new Rectangle(iWidth / 2 - y, 0, 2 * y, iHeight);
                Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height);
                g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel);
                System.Threading.Thread.Sleep(3);
            }
        }

        private void button12_Click(object sender, EventArgs e)
        {
            //水平百味窗
           
            MyBitmap = (Bitmap)this.pictureBox1.Image.Clone();
            int dh = MyBitmap.Height / 20;
            int dw = MyBitmap.Width;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            Point[] MyPoint = new Point[20];
            for (int y = 0; y < 20; y++)
            {
                MyPoint[y].X = 0;
                MyPoint[y].Y = y * dh;
            }
            Bitmap bitmap = new Bitmap(MyBitmap.Width, MyBitmap.Height);
            for (int i = 0; i < dh; i++)
            {
                for (int j = 0; j < 20; j++)
                {
                    for (int k = 0; k < dw; k++)
                    {
                       bitmap.SetPixel(MyPoint[j].X + k, MyPoint[j].Y + i,
                            MyBitmap.GetPixel(MyPoint[j].X + k, MyPoint[j].Y + i));
                    }
                }
                this.pictureBox1.Refresh();
                this.pictureBox1.Image = bitmap;
                System.Threading.Thread.Sleep(3);
            }  

        }

        private void button13_Click(object sender, EventArgs e)
        {
            //垂直百味窗
            MyBitmap=(Bitmap)this.pictureBox1.Image.Clone();  
            int   dw=MyBitmap.Width/30;  
            int   dh=MyBitmap.Height;  
            Graphics   g=this.pictureBox1.CreateGraphics();  
            g.Clear(Color.Gray);    
            Point   []MyPoint=new   Point[30];  
            for(int   x=0;x<30;x++)  
            {  
            MyPoint[x].Y=0;  
            MyPoint[x].X=x*dw;  
            }  
            Bitmap   bitmap=new   Bitmap(MyBitmap.Width,MyBitmap.Height);
            for (int i = 0; i < dw; i++)
            {
            for (int j = 0; j < 30; j++)
            {
            for (int k = 0; k < dh; k++)
            {
              bitmap.SetPixel(MyPoint[j].X + i, MyPoint[j].Y + k, MyBitmap.GetPixel(MyPoint[j].X + i, MyPoint[j].Y + k));
            }
            }
            this.pictureBox1.Refresh(); //刷新图像
            this.pictureBox1.Image = bitmap;
            System.Threading.Thread.Sleep(3);
            }
        }

        private void button14_Click(object sender, EventArgs e)
        {
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            for (int x = -iWidth / 2; x <= iWidth / 2; x++)
            {
                Rectangle DestRect = new Rectangle(0, iHeight / 2, iWidth, 2 * x);
                Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height);
                g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel);
                System.Threading.Thread.Sleep(10);
            }
        }

        private void button15_Click(object sender, EventArgs e)
        {
            int iWidth = this.pictureBox1.Width;
            int iHeight = this.pictureBox1.Height;
            Graphics g = this.pictureBox1.CreateGraphics();
            g.Clear(Color.Gray);
            for (int x = 0; x <= iWidth / 2; x++)
            {
                Rectangle DestRect = new Rectangle(iWidth / 2 - x, iHeight / 2 - x, 2 * x, 2 * x);
                Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height);
                g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel );
                System.Threading.Thread.Sleep(10);
            }
        }
        //纹理图像
        private void button17_Click(object sender, EventArgs e)
        {
            Image myImage=Image .FromFile (openFileDialog1 .FileName );
            MyBitmap = new Bitmap(myImage);
            Rectangle rect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height);
            //指定图像锁定到内存中
           
            BitmapData bmpDate = MyBitmap.LockBits(rect, ImageLockMode.ReadWrite, MyBitmap.PixelFormat);
            //获取像素图像中第一个像素图像的地址
            IntPtr ptr = bmpDate.Scan0;
            int bytes = MyBitmap.Width * MyBitmap.Height * 3;
            byte[] rgbValues = new byte[bytes];
            //使用RGB值为声明的rgbValues数组赋值
            System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
            for (int counter = 0; counter < rgbValues.Length; counter += 3)
            {
                rgbValues[counter] = 125;
            }
            //使用RGB值为图像的像素点着色
            System.Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes);
            //从内存中解锁图像
            MyBitmap.UnlockBits(bmpDate);
            this.pictureBox1.Image = myImage;

        }
        //浮雕图像
        private void button16_Click(object sender, EventArgs e)
        {
            Image myImage = Image.FromFile(openFileDialog1.FileName);
            Bitmap myBitmap = new Bitmap(myImage);
            for (int i = 0; i < myBitmap.Width - 1; i++)
            {
                for (int j = 0; j < myBitmap.Height - 1; j++)
                {
                    //调用GetPixel方法获取像素点
                    Color color1 = myBitmap.GetPixel(i, j);
                    Color color2 = myBitmap.GetPixel(i + 1, j + 1);
                    int red = Math.Abs(color1.R - color2.R + 128);
                    int green = Math.Abs(color1.G - color2.G + 128);
                    int blue = Math.Abs(color1.B - color2.B + 128);
                    //颜色处理
                    if (red > 255) red = 255;
                    if (red < 0) red = 0;
                    if (green > 255) green = 255;
                    if (green < 0) green = 0;
                    if (blue > 255) blue = 255;
                    if (blue < 0) blue = 0;
                    //使用SetPixel方法设置像素点的颜色
                    myBitmap.SetPixel(i, j, Color.FromArgb(red, green, blue));
                }
            }
            this.pictureBox1.Image = myBitmap;
        }

        private void button18_Click(object sender, EventArgs e)
        {
            Image myImage = Image.FromFile(openFileDialog1.FileName);
            MyBitmap = new Bitmap(myImage);
            int intWidth = MyBitmap.Width / 50;
            int intHeight = MyBitmap.Height / 50;
            Graphics myGraphics = this.CreateGraphics();
            myGraphics.Clear(Color.WhiteSmoke);
            Point[] myPoint = new Point[2500];
            for (int i = 0; i < 50; i++)
            {
                for (int j = 0; j < 50; j++)
                {
                    myPoint[i * 50 + j].X = i * intWidth;
                    myPoint[i * 50 + j].Y = j * intHeight;
                }
            }
            Bitmap bitmap = new Bitmap(MyBitmap.Width, MyBitmap.Height);
            for (int i = 0; i < 10000; i++)
            {
                Random rand = new Random();
                int intPos = rand.Next(2500);//随机数不超过2500；
                for (int m = 0; m < intWidth; m++)
                {
                    for (int n = 0; n < intHeight; n++)
                    {
                        bitmap.SetPixel(myPoint[intPos].X + m, myPoint[intPos].Y + n,
                            MyBitmap.GetPixel(myPoint[intPos].X + m, myPoint[intPos].Y + n));
                    }
                }
                this.Refresh(); //刷新程序
                this.pictureBox1.Image = bitmap;
                for (int k = 0; k < 2500; k++)
                {
                    for (int m = 0; m < intWidth; m++)
                    {
                        for (int n = 0; n < intHeight; n++)
                        {
                            bitmap .SetPixel (myPoint [k].X +m,myPoint [k].Y +n,
                                MyBitmap.GetPixel(myPoint[k].X + m, myPoint[k].Y + n));
                        }
                    }
                    this.Refresh();
                    this.pictureBox1.Image = bitmap;
                }
            }
        }

//将图片另存为

      private void button19_Click(object sender, EventArgs e)
        {
            if (pictureBox1.Image != null)
            {
                SaveFileDialog _SaveFileDialog = new SaveFileDialog();
                _SaveFileDialog.Filter = "*.jpg|*.jpg";
                if (_SaveFileDialog.ShowDialog() == DialogResult.OK)
                {
                    pictureBox1.Image.Save(_SaveFileDialog.FileName, ImageFormat.Jpeg);
                   
                }
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}

 

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