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    發(fā)布日期: 2021-06-16
  • 語(yǔ)言: C#
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資源簡(jiǎn)介

實(shí)現(xiàn)圖片的查看放大縮小旋轉(zhuǎn)功能,與windows 圖片查看器的原理一樣

資源截圖

代碼片段和文件信息

using?System;
using?System.Collections.Generic;
using?System.Drawing;
using?System.Drawing.Imaging;
using?System.IO;
using?System.Windows.Forms;

namespace?圖片查看器
{
????public?partial?class?Form1?:?Form
????{
????????//?保存打開(kāi)圖片的路徑
????????string?imgPath?=?null;
????????Image?newbitmap?=?null;
????????//?打開(kāi)圖片的目錄
????????string?directory?=?null;

????????//?目錄下的圖片集合
????????List?imgArray?=?null;
????????bool?isRotate?=?false;

????????public?Form1()
????????{
????????????InitializeComponent();

????????????//?必須先打開(kāi)圖片,旋轉(zhuǎn)按鈕才可以用
????????????btnClockwiseRotate.Visible?=?false;
????????????btncounterclockwiseRotate.Visible?=?false;
????????????btnPre.Visible?=?false;
????????????btnNext.Visible?=?false;
????????}

????????//?打開(kāi)圖片
????????private?void?btnOpen_Click(object?sender?EventArgs?e)
????????{
????????????using?(OpenFileDialog?fileDialog?=?new?OpenFileDialog())
????????????{
????????????????fileDialog.Filter?=?“圖片文件(*.jpg;*.bmp;*.png)|*.jpg;*.bmp;*.png|(All?file(*.*)|*.*“;
????????????????fileDialog.InitialDirectory?=?Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
????????????????if?(fileDialog.ShowDialog()?==?DialogResult.OK)
????????????????{
????????????????????picBoxView.SizeMode?=?PictureBoxSizeMode.Zoom;
????????????????????imgPath?=?fileDialog.FileName;
????????????????????//?初始化圖片集合
????????????????????directory?=?Path.GetDirectoryName(imgPath);
????????????????????imgArray?=?ImageManager.GetImgCollection(directory);

????????????????????newbitmap=(Bitmap)Image.FromFile(imgPath);
????????????????????picBoxView.Image?=newbitmap?;
????????????????}

????????????????btnClockwiseRotate.Visible?=?true;
????????????????btncounterclockwiseRotate.Visible?=?true;
????????????????btnPre.Visible?=?true;
????????????????btnNext.Visible?=?true;
????????????}
????????}

????????//?順時(shí)針旋轉(zhuǎn)90度旋轉(zhuǎn)圖片
????????private?void?btnRotate_Click(object?sender?EventArgs?e)
????????{
????????????picBoxView.SizeMode?=?PictureBoxSizeMode.Zoom;
???????????????????????
????????????//?順時(shí)針旋轉(zhuǎn)90度的另外一種實(shí)現(xiàn)
????????????newbitmap.RotateFlip(RotateFlipType.Rotate90FlipNone);
????????????picBoxView.Image?=?newbitmap;
????????????isRotate?=?true;
????????????//newbitmap?=?(Image)ImageManager.RotateImg(bitmap?90f?Color.Transparent);?;
????????????//picBoxView.Image?=?newbitmap;
????????}
???????
????????//?關(guān)閉窗體后保存旋轉(zhuǎn)后的圖片到文件中
????????private?void?Form1_FormClosed(object?sender?FormClosedEventArgs?e)
????????{
????????????if?(imgPath?==?null?||?isRotate?==?false)
????????????{
????????????????return;
????????????}

????????????switch?(Path.GetExtension(imgPath).ToLower())
????????????{
????????????????case?“.png“:??????????
????????????????????newbitmap.Save(imgPath?ImageFormat.Png);
????????????????????newbitmap.Dispose();
????????????????????break;
????????????????case?“.jpg“:
????????????????????newbitmap.Save(imgPath?ImageFormat.Jpeg);
????????????????????newbitmap.Disp

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????22138??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\description.html

?????文件??????14808??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\license.rtf

?????文件????????875??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView.sln

????..A..H.?????18944??2013-06-10?14:45??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView.suo

?????文件???????8039??2013-06-10?14:45??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Form1.cs

?????文件???????7172??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Form1.Designer.cs

?????文件??????13865??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Form1.resx

?????文件???????3286??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\ImageManager.cs

?????文件???????3632??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\PictureView.csproj

?????文件????????496??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Program.cs

?????文件??????19456??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\bin\Debug\圖片查看器.exe

?????文件??????36352??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\bin\Debug\圖片查看器.pdb

?????文件??????11600??2013-06-10?14:37??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\bin\Debug\圖片查看器.vshost.exe

?????文件????????490??2010-03-17?22:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\bin\Debug\圖片查看器.vshost.exe.manifest

?????文件???????2855??2013-06-10?14:38??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6094??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????1590??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\PictureView.csproj.FileListAbsolute.txt

?????文件????????975??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\PictureView.csproj.GenerateResource.Cache

?????文件??????19456??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\圖片查看器.exe

?????文件???????5931??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\圖片查看器.Form1.resources

?????文件??????36352??2013-06-10?14:39??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\圖片查看器.pdb

?????文件????????180??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\obj\x86\Debug\圖片查看器.Properties.Resources.resources

?????文件???????1362??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Properties\AssemblyInfo.cs

?????文件???????2882??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Properties\Resources.Designer.cs

?????文件???????5612??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Properties\Resources.resx

?????文件???????1102??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Properties\Settings.Designer.cs

?????文件????????249??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\C#\PictureView\Properties\Settings.settings

?????文件??????54776??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\description\10.PNG

?????文件??????????0??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\description\559dec53-b86d-4d49-afe5-bd11e7885605Combined.css

?????文件???????3503??2013-06-02?03:54??C#如何實(shí)現(xiàn)圖片查看器\description\9.PNG

............此處省略20個(gè)文件信息

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