Fixed help files.
This commit is contained in:
Dario Solera
commit
b8f912cc79
1543 changed files with 395123 additions and 0 deletions
377
WebApplication/ImageEditor.aspx.cs
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377
WebApplication/ImageEditor.aspx.cs
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using System;
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using System.Data;
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using System.Configuration;
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using System.Collections;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.IO;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using ScrewTurn.Wiki;
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using ScrewTurn.Wiki.PluginFramework;
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using System.Drawing.Imaging;
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namespace ScrewTurn.Wiki {
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public partial class ImageEditor : BasePage {
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private MemoryStream resultMemStream = null;
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private string file = "";
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private string page = "";
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private IFilesStorageProviderV30 provider = null;
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protected void Page_Load(object sender, EventArgs e) {
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SetProvider();
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SetInputData();
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string currentUser = SessionFacade.GetCurrentUsername();
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string[] currentGroups = SessionFacade.GetCurrentGroupNames();
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string dir = Tools.GetDirectoryName(file);
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// Verify permissions
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bool canUpload = AuthChecker.CheckActionForDirectory(provider, dir,
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Actions.ForDirectories.UploadFiles, currentUser, currentGroups);
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bool canDeleteFiles = AuthChecker.CheckActionForDirectory(provider, dir,
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Actions.ForDirectories.DeleteFiles, currentUser, currentGroups);
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if(!canUpload || !canDeleteFiles) UrlTools.Redirect("AccessDenied.aspx");
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// Inject the proper stylesheet in page head
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Literal l = new Literal();
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l.Text = Tools.GetIncludes(DetectNamespace());
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Page.Header.Controls.Add(l);
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ResizeImage();
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}
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private void SetProvider() {
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string p = Request["Provider"];
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if(string.IsNullOrEmpty(p)) {
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p = Settings.DefaultFilesProvider;
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}
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provider = Collectors.FilesProviderCollector.GetProvider(p);
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}
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private void SetInputData() {
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page = Request["page"];
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file = Request["File"];
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if(string.IsNullOrEmpty(file)) {
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Response.Write("No file specified.");
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return;
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}
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file = file.Replace("..", "");
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}
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private int GetSelectedRotation() {
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if(rdo90CW.Checked) return 90;
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else if(rdo90CCW.Checked) return 270;
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else if(rdo180.Checked) return 180;
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else return 0;
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}
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private void ResizeImage() {
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SetProvider();
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SetInputData();
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// Contains the image bytes
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MemoryStream ms = new MemoryStream(1048576);
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// Load from provider
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if(string.IsNullOrEmpty(page)) {
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if(!provider.RetrieveFile(file, ms, false)) {
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Response.StatusCode = 404;
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Response.Write("File not found.");
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return;
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}
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}
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else {
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PageInfo info = Pages.FindPage(page);
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if(info == null) {
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Response.StatusCode = 404;
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Response.WriteFile("Page not found.");
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return;
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}
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if(!provider.RetrievePageAttachment(info, file, ms, false)) {
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Response.StatusCode = 404;
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Response.WriteFile("File not found.");
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return;
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}
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}
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// Setup new file name and image format
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if(!Page.IsPostBack) {
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string ext = Path.GetExtension(file);
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txtNewName.Text = Path.GetFileNameWithoutExtension(file) + "-2" + ext;
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switch(ext.ToLowerInvariant()) {
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case ".jpg":
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case ".jpeg":
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rdoPng.Checked = false;
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rdoJpegHigh.Checked = true;
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rdoJpegMedium.Checked = false;
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break;
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default:
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rdoPng.Checked = true;
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rdoJpegHigh.Checked = false;
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rdoJpegMedium.Checked = false;
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break;
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}
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}
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ms.Seek(0, SeekOrigin.Begin);
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// Load the source image
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System.Drawing.Image source = System.Drawing.Image.FromStream(ms);
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lblCurrentSize.Text = string.Format("{0}x{1}", source.Width, source.Height);
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if(!Page.IsPostBack) {
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txtWidth.Text = source.Width.ToString();
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txtHeight.Text = source.Height.ToString();
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}
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// Put dimension in script
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lblDimensions.Text = "<script type=\"text/javascript\"><!--\r\nvar width = " +
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source.Width.ToString() +
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";\r\nvar height = " + source.Height.ToString() +
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";\r\n// -->\r\n</script>";
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int resultWidth = source.Width;
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int resultHeight = source.Height;
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if(rdoPercentage.Checked) {
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// Resize by percentage
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int dim = 100;
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if(string.IsNullOrEmpty(txtPercentage.Text)) dim = 100;
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else {
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try {
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dim = int.Parse(txtPercentage.Text);
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}
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catch(FormatException) { }
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}
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// Possible final preview dimensions
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resultWidth = source.Width * dim / 100;
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resultHeight = source.Height * dim / 100;
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}
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else {
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// Resize by pixel
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if(!string.IsNullOrEmpty(txtWidth.Text) && !string.IsNullOrEmpty(txtHeight.Text)) {
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try {
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resultWidth = int.Parse(txtWidth.Text);
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resultHeight = int.Parse(txtHeight.Text);
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}
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catch(FormatException) { }
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}
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}
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int rotation = GetSelectedRotation();
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// Draw preview
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if(resultWidth > 290 || resultHeight > 290) {
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int previewWidth = resultWidth;
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int previewHeight = resultHeight;
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// Max preview dimension 290x290
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if(resultWidth > resultHeight) {
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previewWidth = 290;
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previewHeight = (int)((float)290 / (float)resultWidth * (float)resultHeight);
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lblScale.Text = string.Format("{0:N0}", (float)290 / (float)resultWidth * 100);
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}
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else {
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previewHeight = 290;
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previewWidth = (int)((float)290 / (float)resultHeight * (float)resultWidth);
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lblScale.Text = string.Format("{0:N0}", (float)290 / (float)resultHeight * 100);
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}
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imgPreview.ImageUrl = "Thumb.aspx?File=" + Request["File"] +
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@"&Size=imgeditprev&Width=" + previewWidth + @"&Height=" + previewHeight +
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@"&Page=" + (string.IsNullOrEmpty(page) ? "" : page) +
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(!rdoNoRotation.Checked ? ("&Rot=" + rotation.ToString()) : "");
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}
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else {
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lblScale.Text = "100";
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imgPreview.ImageUrl = "Thumb.aspx?File=" + Request["File"] +
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@"&Size=imgeditprev&Width=" + resultWidth + @"&Height=" + resultHeight +
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@"&Page=" + (string.IsNullOrEmpty(page) ? "" : page) +
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(!rdoNoRotation.Checked ? ("&Rot=" + rotation.ToString()) : "");
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}
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// Destination bitmap
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Bitmap result = new Bitmap(
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rotation != 90 && rotation != 270 ? resultWidth : resultHeight,
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rotation != 90 && rotation != 270 ? resultHeight : resultWidth,
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System.Drawing.Imaging.PixelFormat.Format32bppArgb);
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// Get Graphics object for destination bitmap
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Graphics g = Graphics.FromImage(result);
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g.Clear(Color.Transparent);
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g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
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g.SmoothingMode = SmoothingMode.HighQuality;
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g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
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g.TranslateTransform(result.Width / 2, result.Height / 2);
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g.RotateTransform(rotation);
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g.TranslateTransform(-result.Width / 2, -result.Height / 2);
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// Draw bitmap
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g.DrawImage(source, GetImageRectangle(result.Width, result.Height,
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rotation != 90 && rotation != 270 ? source.Width : source.Height,
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rotation != 90 && rotation != 270 ? source.Height : source.Width,
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rotation == 90 || rotation == 270));
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// Prepare encoder parameters
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string format = GetCurrentFormat();
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resultMemStream = new MemoryStream(1048576);
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// Only JPEG and PNG images are editable
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if(format == "image/jpeg") {
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EncoderParameters encoderParams = new EncoderParameters(1);
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encoderParams.Param[0] = new EncoderParameter(Encoder.Quality, rdoJpegHigh.Checked ? 100L : 60L);
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result.Save(resultMemStream, GetEncoderInfo(format), encoderParams);
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}
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else {
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result.Save(resultMemStream, ImageFormat.Png);
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}
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resultMemStream.Seek(0, SeekOrigin.Begin);
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// Dispose of source and result bitmaps
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source.Dispose();
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g.Dispose();
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result.Dispose();
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}
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private static ImageCodecInfo GetEncoderInfo(string mimeType) {
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int j;
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ImageCodecInfo[] encoders;
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encoders = ImageCodecInfo.GetImageEncoders();
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for(j = 0; j < encoders.Length; ++j) {
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if(encoders[j].MimeType == mimeType)
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return encoders[j];
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}
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return null;
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}
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private string GetCurrentFormat() {
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if(chkNewName.Checked) {
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if(rdoPng.Checked) return "image/png";
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else return "image/jpeg";
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}
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else {
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switch(Path.GetExtension(file).ToLowerInvariant()) {
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case ".jpg":
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case ".jpeg":
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return "image/jpeg";
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default:
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return "image/png";
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}
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}
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}
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private Rectangle GetImageRectangle(int targetW, int targetH, int w, int h, bool swapped) {
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if(w == h) {
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// Square
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return new Rectangle(0, 0, targetW, targetH);
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}
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else if(w > h) {
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// Landscape
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float scale = (float)targetW / (float)w;
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if(targetW > w) scale = 1;
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int width = (int)(w * scale);
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int height = (int)(h * scale);
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if(swapped) {
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int temp = width;
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width = height;
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height = temp;
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}
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return new Rectangle((targetW - width) / 2, (targetH - height) / 2, width, height);
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}
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else {
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// Portrait
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float scale = (float)targetH / (float)h;
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if(targetH > h) scale = 1;
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int width = (int)(w * scale);
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int height = (int)(h * scale);
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if(swapped) {
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int temp = width;
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width = height;
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height = temp;
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}
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return new Rectangle((targetW - width) / 2, (targetH - height) / 2, width, height);
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}
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}
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protected void btnPreview_Click(object sender, EventArgs e) {
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//ResizeImage();
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}
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protected void btnSave_Click(object sender, EventArgs e) {
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ResizeImage();
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bool done = false;
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string targetName = chkNewName.Checked ? txtNewName.Text : Path.GetFileName(file);
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bool overwrite = !chkNewName.Checked;
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if(targetName.Length == 0 || Path.GetFileNameWithoutExtension(targetName).Length == 0) {
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lblResult.CssClass = "resulterror";
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lblResult.Text = Properties.Messages.InvalidFileName;
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return;
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}
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if(!overwrite) {
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// Force extension
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targetName = Path.ChangeExtension(targetName,
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rdoPng.Checked ? "png" : "jpg");
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}
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if(string.IsNullOrEmpty(page)) {
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string path = (file.LastIndexOf('/') > 0) ? file.Substring(0, file.LastIndexOf('/') + 1) : "";
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done = provider.StoreFile(path + targetName, resultMemStream, overwrite);
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}
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else {
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done = provider.StorePageAttachment(Pages.FindPage(page), targetName, resultMemStream, overwrite);
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}
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if(done) {
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lblResult.Text = Properties.Messages.FileSaved;
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lblResult.CssClass = "resultok";
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}
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else {
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lblResult.Text = Properties.Messages.CouldNotSaveFile;
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lblResult.CssClass = "resulterror";
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}
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}
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protected void chkNewName_CheckedChanged(object sender, EventArgs e) {
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txtNewName.Enabled = chkNewName.Checked;
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rdoPng.Enabled = chkNewName.Checked;
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rdoJpegHigh.Enabled = chkNewName.Checked;
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rdoJpegMedium.Enabled = chkNewName.Checked;
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}
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protected void rdoFormat_CheckedChanged(object sender, EventArgs e) {
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string ext = "";
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if(rdoPng.Checked) {
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ext = ".png";
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}
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else {
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ext = ".jpg";
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}
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txtNewName.Text = Path.ChangeExtension(txtNewName.Text, ext);
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}
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}
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}
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