Example #1
0
 /// <summary>
 ///     Export a slide to the specified image format
 /// </summary>
 /// <param name="slide">PPT.Slide object instance</param>
 /// <param name="filePathAndName">File and Path name for the export target</param>
 /// <param name="exportFormat">Format to export to</param>
 /// <param name="scaleWidth">Scale with of the image</param>
 /// <param name="scaleHeight">Scale height of the image</param>
 public void Export(
     PPT.Slide slide,
     string filePathAndName,
     ImageFormats.Formats exportFormat,
     int scaleWidth  = 1280,
     int scaleHeight = 1024)
 {
     slide.Export(filePathAndName, exportFormat.ToString(), scaleWidth, scaleHeight);
 }
Example #2
0
        /// <summary>
        /// Nhập đối tượng tài liệu PowerPoint
        /// </summary>
        /// <param name="_page"></param>
        /// <param name="_slide"></param>
        public void ObjectsInSlides(NormalPage _page, pp.Slide _slide, int count)
        {
            HelperClass helperClass = new HelperClass();

            //----Hiệu ứng trang
            helperClass.GetTransition(_slide, _page);
            //---Chọn kiểu hiệu ứng trang và hướng chiếu

            //-- Thiết lập hình nền màu nền => quy ra ảnh nền object để lấy cả chủ đề, dải màu//loop: Tránh vòng lặp vô hạn
            int loop = 0;

            while (_slide.Shapes.Count > 0)
            {
                if (loop > 200)
                {
                    loop = 0;
                    goto BreakLoop;
                }
                else
                {
                    _slide.Shapes[1].Delete();
                    loop++;
                }
            }
BreakLoop:
            try
            {
                string PathBackground = Path.Combine((System.Windows.Application.Current as IAppGlobal).DocumentTempFolder, "Slide_" + DateTime.Now.Ticks.ToString() + ".png");
                _slide.Export(PathBackground, "png");
                if (File.Exists(PathBackground))
                {
                    ImageColor imgColor = new ImageColor();
                    imgColor.Source = new Image();
                    imgColor.Source.OpenFile(PathBackground, false);
                    _page.MainLayer.Background = imgColor;
                }
            }
            catch (Exception ex)
            {
            }
        }
Example #3
0
        public async Task <string> captureWindow()
        {
            /*
             * Rectangle bounds = this.Bounds;
             * using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
             * {
             *  using (Graphics g = Graphics.FromImage(bitmap))
             *  {
             *      g.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size);
             *  }
             *  bitmap.Save("C://test.jpg", ImageFormat.Jpeg);
             * }
             */
            if (slide == null)
            {
                return(null);
            }
            String destDir = Path.GetTempPath();
            String dest    = Path.Combine(destDir, slide.SlideIndex + ".png");

            slide.Export(dest, "png", 320, 240);
            logger.Debug("save ppt into " + dest);
            return(dest);
        }
Example #4
0
        public static void exportImg2(string path)
        {
            Log.Info("PPT.exportImg  path=" + path);
            string name = Path.GetFileName(path);

            string dir = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\";

            if (!Directory.Exists(dir))
            {
                Directory.CreateDirectory(dir);
            }

            if (name.IndexOf("ppt") < 0 && name.IndexOf("PPT") < 0)
            {
                return;
            }

            string imgpath2 = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\" + name + "_" + 2 + ".jpg";
            string imgpath3 = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\" + name + "_" + 3 + ".jpg";

            if (File.Exists(imgpath2) && File.Exists(imgpath3))
            {
                return;
            }

            POWERPOINT.Application  app = null;
            POWERPOINT.Presentation pre = null;
            try
            {
                app = new POWERPOINT.Application();

                #region check ppt or pptx
                try
                {
                    pre = app.Presentations.Open(path, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse);
                }
                catch (Exception e1)
                {
                    Log.Info("Presentations.Open exception. " + e1 + ", " + path);
                }
                #endregion


                POWERPOINT.Slides slides = pre.Slides;
                int pageTotal            = pre.Slides.Count;

                IEnumerator e = slides.GetEnumerator();
                int         i = 0;

                while (e.MoveNext())
                {
                    i++;
                    PPT.Slide slide   = (PPT.Slide)e.Current;
                    string    imgpath = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\" + name + "_" + i + ".jpg";
                    slide.Export(imgpath, "jpg", 400, 300);
                }
            }
            catch (Exception e1)
            {
                Log.Info("exportImg1 exception: " + e1.Message);
            }
            finally
            {
                try
                {
                    if (pre != null)
                    {
                        pre.Close();
                        pre = null;
                    }
                }
                catch (Exception e2)
                {
                    Log.Info("exportImg2 exception: " + e2.Message);
                }
                app = null;
            }

            Log.Info("PPT.exportImg over.  name=" + name);
        }
Example #5
0
        public static void exportImg(string path)
        {
            Log.Info("PPT.exportImg  path=" + path);
            string name = Path.GetFileName(path);

            string dir = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\";

            if (!Directory.Exists(dir))
            {
                Directory.CreateDirectory(dir);
            }

            if (name.IndexOf("ppt") < 0 && name.IndexOf("PPT") < 0)
            {
                return;
            }



            if (g_fileImgStatus.Contains(name))
            {
                g_fileImgStatus.Remove(name);
            }
            g_fileImgStatus.Add(name, 0);//正在导入

            POWERPOINT.Application  app = null;
            POWERPOINT.Presentation pre = null;
            try
            {
                app = new POWERPOINT.Application();

                #region check ppt or pptx
                try{
                    pre = app.Presentations.Open(path, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse, OFFICECORE.MsoTriState.msoFalse);
                }catch (Exception e1) {
                    Log.Info("Presentations.Open exception. " + e1 + "," + path);
                    if (g_fileImgStatus.Contains(name))
                    {
                        g_fileImgStatus.Remove(name);
                        g_fileImgStatus.Add(name, 1);
                    }
                    Form1.DeleteFile(name);
                    MessageBox.Show("打开" + path + "失败,请检查该文件!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                    app = null;
                }
                #endregion

                Log.Info("Presentations.Open succeed. " + name);
                POWERPOINT.Slides slides = pre.Slides;
                int pageTotal            = pre.Slides.Count;

                bool bOver = true;
                for (int k = 1; k <= pageTotal; k++)
                {
                    string imgpath1 = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\" + name + "_" + k + ".jpg";
                    if (!File.Exists(imgpath1))
                    {
                        bOver = false;
                    }
                }

                if (bOver)
                {
                    try
                    {
                        if (pre != null)
                        {
                            pre.Close();
                            pre = null;
                        }
                    }
                    catch (Exception e2)
                    {
                        Log.Info("exportImg2 exception: " + e2.Message);
                    }
                    app = null;

                    return;
                }



                IEnumerator e = slides.GetEnumerator();
                int         i = 0;

                while (e.MoveNext())
                {
                    i++;
                    PPT.Slide slide   = (PPT.Slide)e.Current;
                    string    imgpath = Application.StartupPath + "\\" + DateTime.Now.ToString("yyyyMMdd") + "\\" + name + "_" + i + ".jpg";
                    slide.Export(imgpath, "jpg", 400, 300);
                }
            }
            catch (Exception e1)
            {
                Log.Info("exportImg1 exception: " + e1.Message);
            }
            finally
            {
                if (g_fileImgStatus.Contains(name))
                {
                    g_fileImgStatus.Remove(name);
                    g_fileImgStatus.Add(name, 1);
                }

                try
                {
                    if (pre != null)
                    {
                        pre.Close();
                        pre = null;
                    }
                }
                catch (Exception e2)
                {
                    Log.Info("exportImg2 exception: " + e2.Message);
                }
                app = null;
            }

            Log.Info("PPT.exportImg over.  name=" + name);
        }
        /// <summary>
        /// Scans pptx file starting slide with specified index
        /// <para>Can throw exceptions from inner calls.</para>
        /// </summary>
        /// <param name="pptPresentation"></param>
        /// <param name="startIndex"></param>
        /// <returns></returns>
        public List <IFileItem> UpdateIndex(PPT.Presentation pptPresentation, int startIndex)
        {
            PPT.Slide     slide             = null;
            dynamic       addin             = null;
            string        tempIndexFile     = null;
            List <string> tempFilesToDelete = new List <string>();

            try
            {
                List <IFileItem> newItems = new List <IFileItem>();

                string tempImgFile = null;

                addin = GetAddin();

                tempIndexFile = Path.GetTempFileName();

                using (FileStream zipFile = new FileStream(indexFileFullName, FileMode.Open))
                {
                    using (ZipArchive zip = new ZipArchive(zipFile, ZipArchiveMode.Update))
                    {
                        ZipArchiveEntry indexFileEntry = zip.GetEntry(ZIPEntry_IndexFileName);
                        indexFileEntry.ExtractToFile(tempIndexFile, true);

                        PPT.Slides gSlides = pptPresentation.Slides;
                        for (int idx = startIndex; idx <= gSlides.Count; idx++)
                        {
                            slide = gSlides[idx];
                            bool isShapeItem = slide.Tags[ShapeTag.Tag] != "";
                            #region Collect Item Data

                            string title = "";

                            StringBuilder sbKeyWords  = new StringBuilder();
                            StringBuilder sbChartType = new StringBuilder();
                            StringBuilder sbDescr     = new StringBuilder();

                            int chartsCount = 0;

                            if (isShapeItem)
                            {
                                try
                                {
                                    PPT.Shape shape = slide.Shapes[1]; //If it is the Shape we expect it to be the only shape on this slide
                                    if (addin?.IsExcelChart(shape) ?? false)
                                    {
                                        chartsCount++;
                                        #region Get Chart Description
                                        string[] str = addin.GetChartDescription(shape);
                                    }
                                    #endregion Get MG Chart Description
                                    else
                                    {
                                        //TODO: Get something from non chart shape
                                        title = shape.Title.Replace("\n", " ").Replace("  ", " ");
                                        sbKeyWords.Append(shape.Name);
                                    }
                                }
                                catch (Exception ex)
                                {
                                }
                            }
                            else
                            { //Slide
                                foreach (PPT.Shape shape in slide.Shapes)
                                {
                                    try
                                    {
                                        if (shape.Name == "Title 1" && title == "")
                                        {
                                            PPT.TextFrame frame = shape.TextFrame;
                                            PPT.TextRange txt   = frame.TextRange;
                                            title = txt.Text.Replace("\n", " ").Replace("  ", " ");
                                            txt   = null;
                                            frame = null;
                                        }
                                        if (addin?.IsExceloChart(shape) ?? false)
                                        {
                                            chartsCount++;
                                        }
                                    }
                                    catch { }
                                }
                            }
                            sbKeyWords.Append(title);
                            sbKeyWords.Append(" ");

                            tempImgFile = Path.GetTempFileName();
                            float ratio = pptPresentation.PageSetup.SlideHeight / pptPresentation.PageSetup.SlideWidth;
                            slide.Export(tempImgFile, "png", ThumbnailWidth, (int)(ThumbnailWidth * ratio));
                            zip.CreateEntryFromFile(tempImgFile, ZIPEntry_ImagesFolder + idx + ".png");
                            Bitmap img = null;

                            using (var fs = new System.IO.FileStream(tempImgFile, System.IO.FileMode.Open))
                            {
                                img = new Bitmap(fs);
                            }

                            sbChartType.Replace("\n", " ");

                            #endregion

                            IFileItem item = LibraryFile.CreateItem(idx);
                            {
                                item.Image = img;
                                item.Type  = (
                                    (Func <ItemType>)(() => {
                                    if (isShapeItem)
                                    {
                                        return(chartsCount == 0 ? ItemType.Shape : ItemType.Chart);
                                    }
                                    else
                                    {
                                        //                                            if (mgChartsCount == 0)
                                        {
                                            return(ItemType.Slide);
                                        }
                                        //    else
                                        //    {
                                        //        return mgChartsCount > 1 ? ItemType.SlideWithMultipleCharts : ItemType.SlideWithChart;
                                        //    }
                                    }
                                })
                                    )();
                                item.ShapesCount = chartsCount;
                                item.Title       = title;
                                item.Description = sbDescr.ToString();
                                item.Keywords    = sbKeyWords.ToString();
//TODO:                                item.ChartType = sbChartType.ToString();
                            }
                            newItems.Add(item);

                            slide = null;
                        }
                        items.AddRange(newItems);

                        Save(newItems, tempIndexFile);

                        indexFileEntry.Delete();
                        zip.CreateEntryFromFile(tempIndexFile, ZIPEntry_IndexFileName);
                    } //using (ZipArchive zip = new ZipArchive(zipFile, ZipArchiveMode.Update))
                }     //using (FileStream zipFile = new FileStream(indexFilePath, FileMode.Open))

                return(newItems);
            }
            finally
            {
                addin = null;

                slide.ReleaseCOM();
                slide = null;

                pptPresentation = null;

                try
                {
                    if (tempIndexFile != null)
                    {
                        File.Delete(tempIndexFile);
                    }

                    foreach (string path in tempFilesToDelete)
                    {
                        File.Delete(path);
                    }
                }
                catch
                {
                }
            }
        }
Example #7
0
        // 感谢ok群群友 yuanyilvhua(QQ:4570848**)提供测试电脑,以修复之前存在的高分屏下的bug :-)
        private void button2_Click(object sender, EventArgs e)
        {
            PowerPoint.Selection sel = app.ActiveWindow.Selection;
            if (sel.Type == PowerPoint.PpSelectionType.ppSelectionSlides && sel.SlideRange.Count > 1)
            {
                PowerPoint.Slides     slides = app.ActivePresentation.Slides;
                PowerPoint.SlideRange srange = sel.SlideRange;
                int scount = srange.Count;

                float wp = app.ActivePresentation.PageSetup.SlideWidth;
                float hp = app.ActivePresentation.PageSetup.SlideHeight;
                int   pw = Properties.Settings.Default.pwidth;
                int   h2 = (int)(pw * hp / wp);

                string name = app.ActivePresentation.Name;
                if (name.Contains(".pptx"))
                {
                    name = name.Replace(".pptx", "");
                }
                if (name.Contains(".ppt"))
                {
                    name = name.Replace(".ppt", "");
                }
                string cPath = app.ActivePresentation.Path + @"\" + name + @" 的GIF图\";
                if (!Directory.Exists(cPath))
                {
                    Directory.CreateDirectory(cPath);
                }
                System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(cPath);
                int    k     = dir.GetFiles().Length + 1;
                string gpath = cPath + name + "_" + k + ".gif";
                int    time  = int.Parse(textBox1.Text.Trim());

                int[] index = new int[srange.Count];
                for (int i = 1; i <= srange.Count; i++)
                {
                    index[i - 1] = srange[i].SlideIndex;
                }
                if (index[0] > index[1])
                {
                    Array.Sort(index);
                }
                sel.Unselect();
                slides.Range(index).Select();

                List <string> path = new List <string>();
                for (int i = 1; i <= scount; i++)
                {
                    PowerPoint.Slide nslide = slides[index[i - 1]];
                    string           cPath2 = cPath + name + "_" + k + ".jpg";
                    nslide.Export(cPath2, "jpg");
                    path.Add(cPath2);
                    k = k + 1;
                }

                AnimatedGifEncoder gif = new AnimatedGifEncoder();
                gif.Start(gpath);
                gif.SetDelay(time);
                if (checkBox1.Checked)
                {
                    gif.SetRepeat(0);
                }
                else
                {
                    gif.SetRepeat(-1);
                }

                Bitmap   bmp = null;
                Graphics g   = null;

                for (int j = 0; j < scount; j++)
                {
                    Image spic = Image.FromFile(path[j]);
                    if (j == 0)
                    {
                        bmp = new Bitmap(spic.Width, spic.Height);
                        bmp.SetResolution(spic.HorizontalResolution, spic.VerticalResolution);
                        g = Graphics.FromImage(bmp);
                        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                        g.SmoothingMode     = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                    }
                    g.Clear(panel1.BackColor);
                    g.DrawImage(spic, 0, 0);
                    gif.AddFrame(bmp);
                    spic.Dispose();
                    File.Delete(path[j]);
                }
                gif.Finish();
                g.Dispose();
                bmp.Dispose();

                if (!checkBox2.Checked)
                {
                    System.Diagnostics.Process.Start("Explorer.exe", cPath);
                }
                else
                {
                    int n = srange[1].SlideNumber;
                    PowerPoint.Shape nshape = slides[n].Shapes.AddPicture(gpath, Office.MsoTriState.msoFalse, Office.MsoTriState.msoTrue, -pw, 0, pw, h2);
                    if (pw > app.ActivePresentation.PageSetup.SlideWidth)
                    {
                        nshape.LockAspectRatio = Office.MsoTriState.msoTrue;
                        nshape.Width           = app.ActivePresentation.PageSetup.SlideWidth;
                        nshape.Left            = 0;
                        nshape.Top             = 0;
                    }
                    nshape.Select();
                    File.Delete(gpath);
                    if (dir.GetFiles().Length == 0)
                    {
                        Directory.Delete(cPath, true);
                    }
                }
            }
            else if (sel.Type == PowerPoint.PpSelectionType.ppSelectionShapes)
            {
                PowerPoint.Slide      slide = app.ActiveWindow.View.Slide;
                PowerPoint.ShapeRange range = sel.ShapeRange;
                if (sel.HasChildShapeRange)
                {
                    range = sel.ChildShapeRange;
                }
                int count = range.Count;
                if (count > 1)
                {
                    string name = app.ActivePresentation.Name;
                    if (name.Contains(".pptx"))
                    {
                        name = name.Replace(".pptx", "");
                    }
                    if (name.Contains(".ppt"))
                    {
                        name = name.Replace(".ppt", "");
                    }
                    string cPath = app.ActivePresentation.Path + @"\" + name + @" 的GIF图\";
                    if (!Directory.Exists(cPath))
                    {
                        Directory.CreateDirectory(cPath);
                    }
                    System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(cPath);
                    int    k     = dir.GetFiles().Length + 1;
                    int    time  = int.Parse(textBox1.Text.Trim());
                    string gpath = cPath + name + "_" + k + ".gif";

                    List <int>    w = new List <int>();
                    List <int>    h = new List <int>();
                    List <string> path = new List <string>();
                    Bitmap        spic = null;
                    float         xs = 0; float ys = 0;
                    for (int i = 1; i <= count; i++)
                    {
                        PowerPoint.Shape pic = range[i];
                        pic.Export(cPath + name + "_" + k + ".png", PowerPoint.PpShapeFormat.ppShapeFormatPNG);
                        spic = new Bitmap(cPath + name + "_" + k + ".png");
                        w.Add(spic.Width);
                        h.Add(spic.Height);
                        if (xs == 0)
                        {
                            xs = spic.HorizontalResolution;
                            ys = spic.VerticalResolution;
                        }
                        spic.Dispose();
                        path.Add(cPath + name + "_" + k + ".png");
                        k = k + 1;
                    }
                    int    wmax = w.Max();
                    int    hmax = h.Max();
                    Bitmap bmp  = new Bitmap(wmax, hmax);
                    bmp.SetResolution(xs, ys);
                    Graphics g = Graphics.FromImage(bmp);
                    g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                    g.SmoothingMode     = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

                    AnimatedGifEncoder gif = new AnimatedGifEncoder();
                    gif.Start(gpath);
                    gif.SetDelay(time);
                    if (checkBox1.Checked)
                    {
                        gif.SetRepeat(0);
                    }
                    else
                    {
                        gif.SetRepeat(-1);
                    }
                    if (checkBox4.Checked)
                    {
                        gif.SetQuality(300);
                        gif.SetTransparent(panel1.BackColor);
                    }

                    for (int j = 0; j < count; j++)
                    {
                        spic = new Bitmap(path[j]);
                        g.Clear(panel1.BackColor);
                        g.DrawImage(spic, (bmp.Width - spic.Width) / 2, (bmp.Height - spic.Height) / 2);
                        gif.AddFrame(bmp);
                        spic.Dispose();
                        File.Delete(path[j]);
                    }
                    gif.Finish();
                    g.Dispose();
                    bmp.Dispose();

                    if (!checkBox2.Checked)
                    {
                        System.Diagnostics.Process.Start("Explorer.exe", cPath);
                    }
                    else
                    {
                        PowerPoint.Shape nshape = slide.Shapes.AddPicture(gpath, Office.MsoTriState.msoFalse, Office.MsoTriState.msoTrue, -wmax, 0, wmax, hmax);
                        nshape.Select();
                        //File.Delete(cPath + name + "_" + k + ".gif");
                        //if (dir.GetFiles().Length == 0)
                        //{
                        //    Directory.Delete(cPath, true);
                        //}
                    }
                }
                else
                {
                    MessageBox.Show("请选中多张图片");
                }
            }
            else
            {
                MessageBox.Show("请选中多张图片或幻灯片页面");
            }
        }
Example #8
0
        private void button1_Click(object sender, EventArgs e)
        {
            PowerPoint.Slide     slide  = app.ActiveWindow.View.Slide;
            PowerPoint.Slides    slides = app.ActivePresentation.Slides;
            PowerPoint.Selection sel    = app.ActiveWindow.Selection;
            if (sel.Type == PowerPoint.PpSelectionType.ppSelectionNone)
            {
                forms.MessageBox.Show("请选中要导出的幻灯片");
            }
            else if (sel.Type == PowerPoint.PpSelectionType.ppSelectionSlides)
            {
                int      wresolution = int.Parse(textBox1.Text.Trim());
                int      prow        = int.Parse(textBox2.Text.Trim());
                int      pspac       = int.Parse(textBox3.Text.Trim());
                int      pspac2      = int.Parse(textBox4.Text.Trim());
                String[] arr         = textBox5.Text.Trim().Split(char.Parse(","), char.Parse(" "), char.Parse(",")).ToArray();

                if (wresolution <= 0 || prow <= 0 || pspac < 0 || pspac2 < 0 || arr.Count() <= 0)
                {
                    MessageBox.Show("水平宽度/列数必须是正整数,间隔大小必须是非负整数,大图设置中的页码不能为空");
                }
                else
                {
                    PowerPoint.SlideRange srange = sel.SlideRange;
                    int   count = srange.Count;
                    int[] index = new int[count];                      //index数组用于将页面的选择顺序强制从前到后
                    for (int i = 1; i <= count; i++)
                    {
                        index[i - 1] = srange[i].SlideIndex;
                    }
                    Array.Reverse(index);
                    Array.Sort(index);
                    sel.Unselect();
                    slides.Range(index).Select();

                    int[,] arrnew = new int[index.Count(), 2];             //arrnew用于初始化,arrnew[i,0]是所有页面的序号,arrnew[i,1]默认是小图
                    for (int i = 0; i < index.Count(); i++)
                    {
                        arrnew[i, 0] = index[i];
                        arrnew[i, 1] = 0;
                    }

                    if (arr.Count() > 1)                                    //将arr数组中的“n”替换为选择的最后一页的页码
                    {
                        for (int i = 0; i < arr.Count(); i++)
                        {
                            if (arr[i] == "n")
                            {
                                arr[i] = count.ToString();
                            }
                        }
                    }
                    else if (arr[0] == "n")
                    {
                        arr[0] = count.ToString();
                    }

                    int arrprow1 = 0;
                    for (int i = 0; i < arrnew.Length / 2; i++)                  //根据数组arr标记arrnew[i,1]中哪些页面是大图
                    {
                        if (prow == 1)
                        {
                            arrnew[i, 1] = 1;
                            arrprow1    += 1;
                        }
                        else
                        {
                            for (int j = 0; j < arr.Count(); j++)
                            {
                                if (arrnew[i, 0] == int.Parse(arr[j]))
                                {
                                    arrnew[i, 1] = 1;
                                    arrprow1    += 1;
                                }
                            }
                        }
                    }

                    int wlarge = wresolution - pspac2 * 2;         //根据用户设置的分辨率,计算大图和小图的宽度和高度
                    int hlarge = (int)(wlarge * h / w);
                    int wsmall = (int)((wlarge - (prow - 1) * pspac) / prow);
                    int hsmall = (int)(wsmall * h / w);

                    int arrcount = arrnew.Length / 2;
                    int[,] narr = new int[arrcount, 2];  //narr[0,0]是大图小图标识、narr[0,1]是水平序号
                    int wcount  = 0;                     //wcount是水平序号、hcount是垂直序号、hscount是垂直方向上小图的行数、hscan是小图是否重新起一行
                    int hcount  = 0;
                    int hscount = 0;
                    int hscan   = 0;
                    for (int i = 0; i < arrcount; i++)
                    {
                        if (arrnew[i, 1] == 1)
                        {
                            narr[i, 0] = 1;
                            hcount    += 1;
                            wcount     = 0;
                            hscan      = 0;
                        }
                        else
                        {
                            narr[i, 0] = 0;
                            if (wcount == 0)
                            {
                                if (hscan == 0)
                                {
                                    narr[i, 1] = wcount;
                                    wcount    += 1;
                                    hscount   += 1;
                                    hcount    += 1;
                                }
                                else
                                {
                                    wcount    += 1;
                                    narr[i, 1] = wcount;
                                    wcount    += 1;
                                }
                            }
                            else
                            {
                                if (wcount < prow)
                                {
                                    narr[i, 1] = wcount;
                                    wcount    += 1;
                                }
                                else
                                {
                                    wcount     = 0;
                                    narr[i, 1] = wcount;
                                    hscount   += 1;
                                    hcount    += 1;
                                    hscan      = 1;
                                }
                            }
                        }
                    }

                    Bitmap bmp0 = new Bitmap(wresolution, hlarge * arrprow1 + hsmall * hscount + pspac * (hcount - 1) + pspac2 * 2);    //计算长图的尺寸、设置长图的分辨率
                    float  dpi  = Properties.Settings.Default.dpi;
                    bmp0.SetResolution(dpi, dpi);

                    string name = app.ActivePresentation.Name;                  //根据演示文稿的文件名创建长图文件夹
                    if (name.Contains(".pptx"))
                    {
                        name = name.Replace(".pptx", "");
                    }
                    else if (name.Contains(".ppt"))
                    {
                        name = name.Replace(".ppt", "");
                    }
                    string cPath = app.ActivePresentation.Path + @"\" + name + @" 的幻灯片\";

                    if (!Directory.Exists(cPath))
                    {
                        Directory.CreateDirectory(cPath);
                    }

                    for (int i = 1; i <= sel.SlideRange.Count; i++)                //导出所选的页面为图片
                    {
                        PowerPoint.Slide nslide = sel.SlideRange[i];
                        string           shname = name + "_临时_" + i;
                        nslide.Export(cPath + shname + ".jpg", "jpg", wresolution, (int)(wresolution * h / w));
                    }

                    Graphics g = Graphics.FromImage(bmp0);
                    if (!checkBox3.Checked)                                         //设置长图的底色
                    {
                        SolidBrush br = new SolidBrush(panel1.BackColor);
                        g.FillRectangle(br, 0, 0, bmp0.Width, bmp0.Height);
                    }

                    int ny = pspac2;
                    int sc = 1;
                    for (int i = 1; i <= count; i++)                                //读取之前导出的临时图片,根据之前的narr数组计算该图片所在的位置和尺寸
                    {
                        string shname2 = name + "_临时_" + i;
                        Bitmap bmp1    = new Bitmap(cPath + shname2 + ".jpg");
                        int    x       = 0;
                        int    y       = 0;
                        int    wd      = 0;
                        int    ht      = 0;

                        if (narr[i - 1, 0] == 1)
                        {
                            wd = wlarge;
                            ht = hlarge;
                            x  = pspac2;
                            y  = y + ny;
                            ny = ny + ht + pspac;
                        }
                        else
                        {
                            wd = wsmall;
                            ht = hsmall;
                            x  = pspac2 + narr[i - 1, 1] * (wd + pspac);
                            y  = y + ny;
                            if (sc < prow)
                            {
                                if (i < count && narr[i, 0] == 1)
                                {
                                    sc = 1;
                                    ny = ny + ht + pspac;
                                }
                                else
                                {
                                    sc += 1;
                                }
                            }
                            else
                            {
                                sc = 1;
                                ny = ny + ht + pspac;
                            }
                        }
                        g.DrawImage(bmp1, x, y, wd, ht);                          //在长图中进行绘制
                        bmp1.Dispose();
                        File.Delete(cPath + shname2 + ".jpg");
                    }

                    System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(cPath);   //保存长图为png或jpg
                    int k = dir.GetFiles().Length + 1;
                    if (checkBox3.Checked)
                    {
                        bmp0.Save(cPath + name + "_" + k + ".png", ImageFormat.Png);
                    }
                    else
                    {
                        bmp0.Save(cPath + name + "_" + k + ".jpg", ImageFormat.Jpeg);
                    }
                    bmp0.Dispose();
                    System.Diagnostics.Process.Start("Explorer.exe", cPath);            //完成后,打开长图所在文件夹
                }
            }
            else
            {
                MessageBox.Show("请选中至少1张幻灯片");
            }
        }