No 76 · 以不同翻轉方式顯示圖像

 

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

namespace Ex13_23
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private Bitmap SourceBitmap;
        private Bitmap MyBitmap;
        private void button2_Click(object sender, EventArgs e)
        {
            //打開圖像文件
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "圖像文件(JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png| JPeg 圖像文件(*.jpg;*.jpeg)|*.jpg;*.jpeg |GIF 圖像文件(*.gif)|*.gif |BMP圖像文件(*.bmp)|*.bmp|Tiff圖像文件(*.tif;*.tiff)|*.tif;*.tiff|Png圖像文件(*.png)| *.png |所有文件(*.*)|*.*";
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                //得到原始大小的圖像
                SourceBitmap = new Bitmap(openFileDialog.FileName);
                //得到縮放後的圖像
                MyBitmap = new Bitmap(SourceBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
                this.pictureBox1.Image = MyBitmap;
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //以不同翻轉方式顯示圖像
            Graphics g = this.panel1.CreateGraphics();
            for (int i = 0; i < 17; i++)
            {
                switch (i)
                {
                    case 0:
                        MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX);
                        break;
                    case 1:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipNone);
                        break;
                    case 2:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipX);
                        break;
                    case 3:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipXY);
                        break;
                    case 4:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipY);
                        break;
                    case 5:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipNone);
                        break;
                    case 6:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipX);
                        break;
                    case 7:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipXY);
                        break;
                    case 8:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipY);
                        break;
                    case 9:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipNone);
                        break;
                    case 10:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipX);
                        break;
                    case 11:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipXY);
                        break;
                    case 12:
                        MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipY);
                        break;
                    case 13:
                        MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipNone);
                        break;
                    case 14:
                        MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX);
                        break;
                    case 15:
                        MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipXY);
                        break;
                    case 16:
                        MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
                        break;
                }
                g.Clear(Color.White);
                g.DrawImage(MyBitmap, 0, 0);
                System.Threading.Thread.Sleep(1000);
            } 
        }
    }
}