Added Tools -> Split long lines

git-svn-id: https://subtitleedit.googlecode.com/svn/trunk@225 99eadd0c-20b8-1223-b5c4-2a2b2df33de2

src/Forms/Main.cs

@@ -500,6 +500,7 @@ namespace Nikse.SubtitleEdit.Forms
             toolStripMenuItemCompare.Text = _language.Menu.File.Compare;
             toolStripMenuItemImportDvdSubtitles.Text = _language.Menu.File.ImportOcrFromDvd;
             toolStripMenuItemSubIdx.Text = _language.Menu.File.ImportOcrVobSubSubtitle;
+            toolStripButtonGetFrameRate.ToolTipText = _language.GetFrameRateFromVideoFile;
 
             toolStripMenuItemImportBluRaySup.Text = _language.Menu.File.ImportBluRaySupFile;
 
@@ -529,6 +530,7 @@ namespace Nikse.SubtitleEdit.Forms
             ChangeCasingToolStripMenuItem.Text = _language.Menu.Tools.ChangeCasing;
             toolStripMenuItemChangeFramerate.Text = _language.Menu.Tools.ChangeFrameRate;
             toolStripMenuItemAutoMergeShortLines.Text = _language.Menu.Tools.MergeShortLines;
+            toolStripMenuItemAutoSplitLongLines.Text = _language.Menu.Tools.SplitLongLines;
             setMinimumDisplayTimeBetweenParagraphsToolStripMenuItem.Text = _language.Menu.Tools.MinimumDisplayTimeBetweenParagraphs;
             toolStripMenuItem1.Text = _language.Menu.Tools.SortBy;
             sortNumberToolStripMenuItem.Text = _languageGeneral.Number;
@@ -5479,6 +5481,33 @@ namespace Nikse.SubtitleEdit.Forms
             }
         }
 
+        private void toolStripMenuItemAutoSplitLongLines_Click(object sender, EventArgs e)
+        {
+            if (_subtitle != null && _subtitle.Paragraphs.Count > 1)
+            {
+                ReloadFromSourceView();
+                var splitLongLines = new SplitLongLines();
+                _formPositionsAndSizes.SetPositionAndSize(splitLongLines);
+                splitLongLines.Initialize(_subtitle);
+                if (splitLongLines.ShowDialog(this) == DialogResult.OK)
+                {
+                    MakeHistoryForUndo(_language.BeforeMergeShortLines);
+                    _subtitle = splitLongLines.SplittedSubtitle;
+                    ShowStatus(string.Format(_language.MergedShortLinesX, splitLongLines.NumberOfSplits));
+                    SaveSubtitleListviewIndexes();
+                    ShowSource();
+                    SubtitleListview1.Fill(_subtitle, _subtitleAlternate);
+                    RestoreSubtitleListviewIndexes();
+                    _change = true;
+                }
+                _formPositionsAndSizes.SavePositionAndSize(splitLongLines);
+            }
+            else
+            {
+                MessageBox.Show(_language.NoSubtitleLoaded, Title, MessageBoxButtons.OK, MessageBoxIcon.Warning);
+            }
+        }
+
         private void setMinimalDisplayTimeDifferenceToolStripMenuItem_Click(object sender, EventArgs e)
         {
             SetMinimumDisplayTimeBetweenParagraphs setMinDisplayDiff = new SetMinimumDisplayTimeBetweenParagraphs();

src/Forms/Main.resx

@@ -127,7 +127,7 @@
   <data name="toolStripButtonFileNew.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAATQSURBVFhH7ZfbT1xVFMax+qQv6l9h0sQHffNFHwxNpTNi
+        YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAATQSURBVFhH7ZfbT1xVFMax+qQv6l9h0sQHffNFHwxNpTNi
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         XKnDmqxND9ue+UBvb+/W5uYmVldXtdbW1rC+vo6NjQ0wzjESiWBrawvb29tanDNmPsMc5kod5rI2PWwB
@@ -154,7 +154,7 @@
   <data name="toolStripButtonFileOpen.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAXJSURBVFhH7VRrbJMFFMVoTCT+MNE//hIU8QUIUTaZPIeK
+        YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAXJSURBVFhH7VRrbJMFFMVoTCT+MNE//hIU8QUIUTaZPIeK
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         FwL2OQ/w/rclVCrVZfncTUtL8/f29oLo6ekJQWCmVqu7hY/U1NR/DV6UGmaFLK7VapU38/v9ILq7u/8R
@@ -185,7 +185,7 @@
   <data name="toolStripButtonSave.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAWoSURBVFhH1ZZrTJdlGMZttrU+1Prq5ke/5BpbfmyWuMkH
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@@ -215,7 +215,7 @@
   <data name="toolStripButtonSaveAs.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
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@@ -247,7 +247,7 @@
   <data name="toolStripButtonFind.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAjfSURBVFhH1ZcJUBRXGsfNqlHxBgaYAQpEzkHCISDCOI2A
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@@ -291,7 +291,7 @@
   <data name="toolStripButtonReplace.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAlySURBVFhH1VcJVJNXGo1TrTsqkLDpBAERAgjIIpsEERGE
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@@ -338,7 +338,7 @@
   <data name="toolStripButtonVisualSync.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAbzSURBVFhH7VZnTFZXGCbaH036o4lN0zalKtHGWgOUJVAB
+        YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAbzSURBVFhH7VZnTFZXGCbaH036o4lN0zalKtHGWgOUJVAB
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@@ -374,7 +374,7 @@
   <data name="toolStripButtonSpellCheck.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAASkSURBVFhH7ZVZTGNlGIYZl2j0zisTY8yEC+ON8WKiN0a8
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@@ -400,7 +400,7 @@
   <data name="toolStripButtonSettings.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAVrSURBVFhHrZdHSG1XFIZfyoMUyCQho2QeyVAiJCQhgwTC
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@@ -429,7 +429,7 @@
   <data name="toolStripButtonHelp.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAeXSURBVFhH7Vd7UNNXFkbbnV3bmd3pdnZb21pnO90+wgo2
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@@ -468,7 +468,7 @@
   <data name="toolStripButtonToogleWaveForm.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAf2SURBVFhH7Zd5TNTpHcaHpNkeAko8uQRUBBZnuAfm4JiB
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@@ -508,7 +508,7 @@
   <data name="toolStripButtonToogleVideo.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
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@@ -538,7 +538,7 @@
   <data name="toolStripButtonGetFrameRate.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAIISURBVDhPpZP7S1NxGMbPPxKaXVUkMEq8IpKUCoY/hGgI
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@@ -583,7 +583,7 @@
   <data name="toolStripButtonWaveFormZoomOut.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAHUSURBVDhPrZLfS1NhHMb9f6Sb6A8IvQvCguqiGyHTMuiX
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@@ -597,7 +597,7 @@
   <data name="toolStripButtonWaveFormZoomIn.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
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@@ -611,7 +611,7 @@
   <data name="toolStripButtonWaveFormPause.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
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@@ -620,7 +620,7 @@
   <data name="toolStripButtonWaveFormPlay.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
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@@ -631,7 +631,7 @@
   <data name="toolStripButtonLockCenter.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8
-        YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAJeSURBVDhPnZJbT1NBFIX5Rz75H7wkxsQYE2OMgonGYDQG
+        YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAJeSURBVDhPnZJbT1NBFIX5Rz75H7wkxsQYE2OMgonGYDQG
         44XUVDQEJRWjhra0PfYCtLQUaPGWUrCgbXngxRgffIDaUEpAbKG3c3raM8s9c2o59dFJVuZhz3yz15rd
         5YuuwhdJwxsl0e6JpHDlRV6oZ0RX9/MtUh7S9ApcQstwhhJwBj+hyxtZxb+LX4p/0xBdY7DFNZiDCo50
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src/Forms/SplitLongLines.Designer.cs

@@ -0,0 +1,309 @@
+namespace Nikse.SubtitleEdit.Forms
+{
+    partial class SplitLongLines
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.groupBoxLinesFound = new System.Windows.Forms.GroupBox();
+            this.listViewFixes = new System.Windows.Forms.ListView();
+            this.columnHeader4 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.columnHeader5 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.columnHeader7 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.numericUpDownSingleLineMaxCharacters = new System.Windows.Forms.NumericUpDown();
+            this.labelLineMaxLength = new System.Windows.Forms.Label();
+            this.labelSingleLineMaxLength = new System.Windows.Forms.Label();
+            this.buttonOK = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.numericUpDownLineMaxCharacters = new System.Windows.Forms.NumericUpDown();
+            this.labelMaxSingleLineLengthIs = new System.Windows.Forms.Label();
+            this.labelMaxLineLengthIs = new System.Windows.Forms.Label();
+            this.comboBoxLineContinuationBegin = new System.Windows.Forms.ComboBox();
+            this.labelLineContinuationBeginEnd = new System.Windows.Forms.Label();
+            this.comboBoxLineContinuationEnd = new System.Windows.Forms.ComboBox();
+            this.SubtitleListview1 = new Nikse.SubtitleEdit.Controls.SubtitleListView();
+            this.groupBoxLinesFound.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.numericUpDownSingleLineMaxCharacters)).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)(this.numericUpDownLineMaxCharacters)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // groupBoxLinesFound
+            // 
+            this.groupBoxLinesFound.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
+                        | System.Windows.Forms.AnchorStyles.Right)));
+            this.groupBoxLinesFound.Controls.Add(this.listViewFixes);
+            this.groupBoxLinesFound.Location = new System.Drawing.Point(6, 64);
+            this.groupBoxLinesFound.Name = "groupBoxLinesFound";
+            this.groupBoxLinesFound.Size = new System.Drawing.Size(756, 200);
+            this.groupBoxLinesFound.TabIndex = 4;
+            this.groupBoxLinesFound.TabStop = false;
+            this.groupBoxLinesFound.Text = "Lines that will be splittet";
+            // 
+            // listViewFixes
+            // 
+            this.listViewFixes.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
+                        | System.Windows.Forms.AnchorStyles.Right)));
+            this.listViewFixes.CheckBoxes = true;
+            this.listViewFixes.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
+            this.columnHeader4,
+            this.columnHeader5,
+            this.columnHeader7});
+            this.listViewFixes.FullRowSelect = true;
+            this.listViewFixes.Location = new System.Drawing.Point(6, 23);
+            this.listViewFixes.Name = "listViewFixes";
+            this.listViewFixes.Size = new System.Drawing.Size(744, 171);
+            this.listViewFixes.TabIndex = 0;
+            this.listViewFixes.UseCompatibleStateImageBehavior = false;
+            this.listViewFixes.View = System.Windows.Forms.View.Details;
+            this.listViewFixes.SelectedIndexChanged += new System.EventHandler(this.listViewFixes_SelectedIndexChanged);
+            // 
+            // columnHeader4
+            // 
+            this.columnHeader4.Text = "Apply";
+            this.columnHeader4.Width = 45;
+            // 
+            // columnHeader5
+            // 
+            this.columnHeader5.Text = "Line#";
+            this.columnHeader5.Width = 122;
+            // 
+            // columnHeader7
+            // 
+            this.columnHeader7.Text = "New text";
+            this.columnHeader7.Width = 500;
+            // 
+            // numericUpDownSingleLineMaxCharacters
+            // 
+            this.numericUpDownSingleLineMaxCharacters.Location = new System.Drawing.Point(250, 35);
+            this.numericUpDownSingleLineMaxCharacters.Maximum = new decimal(new int[] {
+            200,
+            0,
+            0,
+            0});
+            this.numericUpDownSingleLineMaxCharacters.Minimum = new decimal(new int[] {
+            10,
+            0,
+            0,
+            0});
+            this.numericUpDownSingleLineMaxCharacters.Name = "numericUpDownSingleLineMaxCharacters";
+            this.numericUpDownSingleLineMaxCharacters.Size = new System.Drawing.Size(64, 20);
+            this.numericUpDownSingleLineMaxCharacters.TabIndex = 0;
+            this.numericUpDownSingleLineMaxCharacters.Value = new decimal(new int[] {
+            50,
+            0,
+            0,
+            0});
+            this.numericUpDownSingleLineMaxCharacters.ValueChanged += new System.EventHandler(this.NumericUpDownMaxCharactersValueChanged);
+            // 
+            // labelLineMaxLength
+            // 
+            this.labelLineMaxLength.AutoSize = true;
+            this.labelLineMaxLength.Location = new System.Drawing.Point(428, 18);
+            this.labelLineMaxLength.Name = "labelLineMaxLength";
+            this.labelLineMaxLength.Size = new System.Drawing.Size(105, 13);
+            this.labelLineMaxLength.TabIndex = 43;
+            this.labelLineMaxLength.Text = "Line maximum length";
+            // 
+            // labelSingleLineMaxLength
+            // 
+            this.labelSingleLineMaxLength.AutoSize = true;
+            this.labelSingleLineMaxLength.Location = new System.Drawing.Point(247, 18);
+            this.labelSingleLineMaxLength.Name = "labelSingleLineMaxLength";
+            this.labelSingleLineMaxLength.Size = new System.Drawing.Size(133, 13);
+            this.labelSingleLineMaxLength.TabIndex = 42;
+            this.labelSingleLineMaxLength.Text = "Single line maximum length";
+            // 
+            // buttonOK
+            // 
+            this.buttonOK.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.buttonOK.ImeMode = System.Windows.Forms.ImeMode.NoControl;
+            this.buttonOK.Location = new System.Drawing.Point(600, 577);
+            this.buttonOK.Name = "buttonOK";
+            this.buttonOK.Size = new System.Drawing.Size(75, 21);
+            this.buttonOK.TabIndex = 6;
+            this.buttonOK.Text = "&OK";
+            this.buttonOK.UseVisualStyleBackColor = true;
+            this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.buttonCancel.ImeMode = System.Windows.Forms.ImeMode.NoControl;
+            this.buttonCancel.Location = new System.Drawing.Point(681, 577);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(75, 21);
+            this.buttonCancel.TabIndex = 7;
+            this.buttonCancel.Text = "C&ancel";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.buttonCancel_Click);
+            // 
+            // numericUpDownLineMaxCharacters
+            // 
+            this.numericUpDownLineMaxCharacters.Location = new System.Drawing.Point(431, 35);
+            this.numericUpDownLineMaxCharacters.Maximum = new decimal(new int[] {
+            200,
+            0,
+            0,
+            0});
+            this.numericUpDownLineMaxCharacters.Minimum = new decimal(new int[] {
+            10,
+            0,
+            0,
+            0});
+            this.numericUpDownLineMaxCharacters.Name = "numericUpDownLineMaxCharacters";
+            this.numericUpDownLineMaxCharacters.Size = new System.Drawing.Size(64, 20);
+            this.numericUpDownLineMaxCharacters.TabIndex = 1;
+            this.numericUpDownLineMaxCharacters.Value = new decimal(new int[] {
+            90,
+            0,
+            0,
+            0});
+            this.numericUpDownLineMaxCharacters.ValueChanged += new System.EventHandler(this.NumericUpDownMaxCharactersValueChanged);
+            // 
+            // labelMaxSingleLineLengthIs
+            // 
+            this.labelMaxSingleLineLengthIs.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.labelMaxSingleLineLengthIs.AutoSize = true;
+            this.labelMaxSingleLineLengthIs.Location = new System.Drawing.Point(3, 577);
+            this.labelMaxSingleLineLengthIs.Name = "labelMaxSingleLineLengthIs";
+            this.labelMaxSingleLineLengthIs.Size = new System.Drawing.Size(133, 13);
+            this.labelMaxSingleLineLengthIs.TabIndex = 45;
+            this.labelMaxSingleLineLengthIs.Text = "Single line maximum length";
+            this.labelMaxSingleLineLengthIs.Click += new System.EventHandler(this.labelMaxSingleLineLengthIs_Click);
+            // 
+            // labelMaxLineLengthIs
+            // 
+            this.labelMaxLineLengthIs.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.labelMaxLineLengthIs.AutoSize = true;
+            this.labelMaxLineLengthIs.Location = new System.Drawing.Point(3, 592);
+            this.labelMaxLineLengthIs.Name = "labelMaxLineLengthIs";
+            this.labelMaxLineLengthIs.Size = new System.Drawing.Size(83, 13);
+            this.labelMaxLineLengthIs.TabIndex = 46;
+            this.labelMaxLineLengthIs.Text = "Maximum length";
+            this.labelMaxLineLengthIs.Click += new System.EventHandler(this.labelMaxLineLengthIs_Click);
+            // 
+            // comboBoxLineContinuationBegin
+            // 
+            this.comboBoxLineContinuationBegin.FormattingEnabled = true;
+            this.comboBoxLineContinuationBegin.Items.AddRange(new object[] {
+            "- ",
+            "..."});
+            this.comboBoxLineContinuationBegin.Location = new System.Drawing.Point(570, 33);
+            this.comboBoxLineContinuationBegin.Name = "comboBoxLineContinuationBegin";
+            this.comboBoxLineContinuationBegin.Size = new System.Drawing.Size(80, 21);
+            this.comboBoxLineContinuationBegin.TabIndex = 2;
+            // 
+            // labelLineContinuationBeginEnd
+            // 
+            this.labelLineContinuationBeginEnd.AutoSize = true;
+            this.labelLineContinuationBeginEnd.Location = new System.Drawing.Point(567, 17);
+            this.labelLineContinuationBeginEnd.Name = "labelLineContinuationBeginEnd";
+            this.labelLineContinuationBeginEnd.Size = new System.Drawing.Size(173, 13);
+            this.labelLineContinuationBeginEnd.TabIndex = 48;
+            this.labelLineContinuationBeginEnd.Text = "Line continuation begin/end strings";
+            // 
+            // comboBoxLineContinuationEnd
+            // 
+            this.comboBoxLineContinuationEnd.FormattingEnabled = true;
+            this.comboBoxLineContinuationEnd.Items.AddRange(new object[] {
+            " -",
+            "..."});
+            this.comboBoxLineContinuationEnd.Location = new System.Drawing.Point(656, 33);
+            this.comboBoxLineContinuationEnd.Name = "comboBoxLineContinuationEnd";
+            this.comboBoxLineContinuationEnd.Size = new System.Drawing.Size(80, 21);
+            this.comboBoxLineContinuationEnd.TabIndex = 3;
+            // 
+            // SubtitleListview1
+            // 
+            this.SubtitleListview1.AllowDrop = true;
+            this.SubtitleListview1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
+                        | System.Windows.Forms.AnchorStyles.Left)
+                        | System.Windows.Forms.AnchorStyles.Right)));
+            this.SubtitleListview1.FirstVisibleIndex = -1;
+            this.SubtitleListview1.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.SubtitleListview1.FullRowSelect = true;
+            this.SubtitleListview1.GridLines = true;
+            this.SubtitleListview1.HideSelection = false;
+            this.SubtitleListview1.Location = new System.Drawing.Point(4, 270);
+            this.SubtitleListview1.Name = "SubtitleListview1";
+            this.SubtitleListview1.Size = new System.Drawing.Size(758, 301);
+            this.SubtitleListview1.TabIndex = 5;
+            this.SubtitleListview1.UseCompatibleStateImageBehavior = false;
+            this.SubtitleListview1.View = System.Windows.Forms.View.Details;
+            // 
+            // SplitLongLines
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(774, 614);
+            this.Controls.Add(this.comboBoxLineContinuationEnd);
+            this.Controls.Add(this.labelLineContinuationBeginEnd);
+            this.Controls.Add(this.comboBoxLineContinuationBegin);
+            this.Controls.Add(this.labelMaxLineLengthIs);
+            this.Controls.Add(this.labelMaxSingleLineLengthIs);
+            this.Controls.Add(this.numericUpDownLineMaxCharacters);
+            this.Controls.Add(this.groupBoxLinesFound);
+            this.Controls.Add(this.numericUpDownSingleLineMaxCharacters);
+            this.Controls.Add(this.labelLineMaxLength);
+            this.Controls.Add(this.labelSingleLineMaxLength);
+            this.Controls.Add(this.SubtitleListview1);
+            this.Controls.Add(this.buttonOK);
+            this.Controls.Add(this.buttonCancel);
+            this.Name = "SplitLongLines";
+            this.ShowIcon = false;
+            this.Text = "Split long lines";
+            this.Shown += new System.EventHandler(this.SplitLongLines_Shown);
+            this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.SplitLongLines_KeyDown);
+            this.groupBoxLinesFound.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.numericUpDownSingleLineMaxCharacters)).EndInit();
+            ((System.ComponentModel.ISupportInitialize)(this.numericUpDownLineMaxCharacters)).EndInit();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.GroupBox groupBoxLinesFound;
+        private System.Windows.Forms.ListView listViewFixes;
+        private System.Windows.Forms.ColumnHeader columnHeader4;
+        private System.Windows.Forms.ColumnHeader columnHeader5;
+        private System.Windows.Forms.ColumnHeader columnHeader7;
+        private System.Windows.Forms.NumericUpDown numericUpDownSingleLineMaxCharacters;
+        private System.Windows.Forms.Label labelLineMaxLength;
+        private System.Windows.Forms.Label labelSingleLineMaxLength;
+        private Controls.SubtitleListView SubtitleListview1;
+        private System.Windows.Forms.Button buttonOK;
+        private System.Windows.Forms.Button buttonCancel;
+        private System.Windows.Forms.NumericUpDown numericUpDownLineMaxCharacters;
+        private System.Windows.Forms.Label labelMaxSingleLineLengthIs;
+        private System.Windows.Forms.Label labelMaxLineLengthIs;
+        private System.Windows.Forms.ComboBox comboBoxLineContinuationBegin;
+        private System.Windows.Forms.Label labelLineContinuationBeginEnd;
+        private System.Windows.Forms.ComboBox comboBoxLineContinuationEnd;
+    }
+}

src/Forms/SplitLongLines.cs

@@ -0,0 +1,359 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+using Nikse.SubtitleEdit.Logic;
+
+namespace Nikse.SubtitleEdit.Forms
+{
+    public sealed partial class SplitLongLines : Form
+    {
+
+        Subtitle _subtitle;
+        private Subtitle _splittedSubtitle;
+
+        public int NumberOfSplits { get; private set; }
+
+        public Subtitle SplittedSubtitle
+        {
+            get { return _splittedSubtitle; }
+        }
+
+        public SplitLongLines()
+        {
+            InitializeComponent();
+            FixLargeFonts();
+        }
+
+        private void FixLargeFonts()
+        {
+            Graphics graphics = this.CreateGraphics();
+            SizeF textSize = graphics.MeasureString(buttonOK.Text, this.Font);
+            if (textSize.Height > buttonOK.Height - 4)
+            {
+                int newButtonHeight = (int)(textSize.Height + 7 + 0.5);
+                Utilities.SetButtonHeight(this, newButtonHeight, 1);
+            }
+        }
+
+        private void SplitLongLines_KeyDown(object sender, KeyEventArgs e)
+        {
+            if (e.KeyCode == Keys.Escape)
+                DialogResult = DialogResult.Cancel;
+        }
+
+        public void Initialize(Subtitle subtitle)
+        {
+            if (subtitle.Paragraphs.Count > 0)
+                subtitle.Renumber(subtitle.Paragraphs[0].Number);
+
+            Text = Configuration.Settings.Language.SplitLongLines.Title;
+            labelSingleLineMaxLength.Text = Configuration.Settings.Language.SplitLongLines.SingleLineMaximumLength;
+            labelLineMaxLength.Text = Configuration.Settings.Language.SplitLongLines.LineMaximumLength;
+            labelLineContinuationBeginEnd.Text = Configuration.Settings.Language.SplitLongLines.LineContinuationBeginEndStrings;
+
+            listViewFixes.Columns[0].Text = Configuration.Settings.Language.General.Apply;
+            listViewFixes.Columns[1].Text = Configuration.Settings.Language.MergedShortLines.LineNumber;
+            listViewFixes.Columns[2].Text = Configuration.Settings.Language.MergedShortLines.MergedText;
+
+            buttonOK.Text = Configuration.Settings.Language.General.OK;
+            buttonCancel.Text = Configuration.Settings.Language.General.Cancel;
+            SubtitleListview1.InitializeLanguage(Configuration.Settings.Language.General, Configuration.Settings);
+            SubtitleListview1.InitializeTimeStampColumWidths(this);
+            NumberOfSplits = 0;
+            numericUpDownSingleLineMaxCharacters.Value = Configuration.Settings.General.SubtitleLineMaximumLength;
+            _subtitle = subtitle;
+        }
+
+        private void AddToListView(Paragraph p, string lineNumbers, string newText)
+        {
+            var item = new ListViewItem(string.Empty) { Tag = p, Checked = true };
+
+            var subItem = new ListViewItem.ListViewSubItem(item, lineNumbers);
+            item.SubItems.Add(subItem);
+            subItem = new ListViewItem.ListViewSubItem(item, newText.Replace(Environment.NewLine, Configuration.Settings.General.ListViewLineSeparatorString));
+            item.SubItems.Add(subItem);
+
+            listViewFixes.Items.Add(item);
+        }
+
+        private void listViewFixes_ItemChecked(object sender, ItemCheckedEventArgs e)
+        {
+            GeneratePreview(false);
+        }
+
+        private void GeneratePreview(bool clearFixes)
+        {
+            if (_subtitle == null)
+                return;
+
+            var splittedIndexes = new List<int>();
+            var autoBreakedIndexes = new List<int>();
+
+            NumberOfSplits = 0;
+        	SubtitleListview1.Items.Clear();
+            SubtitleListview1.BeginUpdate();
+            int count;
+            _splittedSubtitle = SplitLongLinesInSubtitle(_subtitle, splittedIndexes, autoBreakedIndexes, out count, (int)numericUpDownLineMaxCharacters.Value, (int)numericUpDownSingleLineMaxCharacters.Value, clearFixes);
+            NumberOfSplits = count;
+
+            SubtitleListview1.Fill(_splittedSubtitle);
+
+            foreach (var index in splittedIndexes)
+                SubtitleListview1.SetBackgroundColor(index, Color.Green);
+
+            foreach (var index in autoBreakedIndexes)
+                SubtitleListview1.SetBackgroundColor(index, Color.LightGreen);
+
+            SubtitleListview1.EndUpdate();
+            groupBoxLinesFound.Text = string.Format(Configuration.Settings.Language.SplitLongLines.NumberOfSplits, NumberOfSplits);
+            UpdateLongestLinesInfo(_splittedSubtitle);
+        }
+
+        private void UpdateLongestLinesInfo(Subtitle subtitle)
+        {
+            int maxLength = -1;
+            int maxLengthIndex = -1;
+            int singleLineMaxLength = -1;
+            int singleLineMaxLengthIndex = -1;
+            int i = 0;
+            foreach (Paragraph p in subtitle.Paragraphs)
+            {
+                string s = Utilities.RemoveHtmlTags(p.Text);
+                if (s.Length > maxLength)
+                {
+                    maxLength = s.Length;
+                    maxLengthIndex = i;
+                }
+                string[] arr = s.Split(Environment.NewLine.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
+                foreach (string line in arr)
+                {
+                    if (line.Length > singleLineMaxLengthIndex)
+                    {
+                        singleLineMaxLength = line.Length;
+                        singleLineMaxLengthIndex = i;
+                    }
+                }
+                i++;
+            }                                        
+            labelMaxSingleLineLengthIs.Text = string.Format(Configuration.Settings.Language.SplitLongLines.LongestSingleLineIsXAtY, singleLineMaxLength, singleLineMaxLengthIndex + 1);
+            labelMaxSingleLineLengthIs.Tag = singleLineMaxLengthIndex.ToString();
+            labelMaxLineLengthIs.Text = string.Format(Configuration.Settings.Language.SplitLongLines.LongestLineIsXAtY, maxLength, maxLengthIndex + 1);
+            labelMaxLineLengthIs.Tag = maxLengthIndex.ToString();
+        }
+
+        private bool IsFixAllowed(Paragraph p)
+        {
+            foreach (ListViewItem item in listViewFixes.Items)
+            {
+                if ((item.Tag as Paragraph) == p)
+                    return item.Checked;
+            }
+            return true;
+        }
+
+        public Subtitle SplitLongLinesInSubtitle(Subtitle subtitle, List<int> splittedIndexes, List<int> autoBreakedIndexes, out int numberOfSplits, int totalLineMaxCharacters, int singleLineMaxCharacters, bool clearFixes)
+        {
+            listViewFixes.ItemChecked -= listViewFixes_ItemChecked;
+            if (clearFixes)
+                listViewFixes.Items.Clear();
+            numberOfSplits = 0;
+            Subtitle splittedSubtitle = new Subtitle();
+            Paragraph p = null;
+            StringBuilder lineNumbers = new StringBuilder();
+            for (int i = 0; i < subtitle.Paragraphs.Count; i++)
+            {
+                bool added = false;
+                p = subtitle.GetParagraphOrDefault(i);
+                if (p != null && p.Text != null)
+                {
+                    string oldText = Utilities.RemoveHtmlTags(p.Text);
+                    if (QualifiesForSplit(p.Text, singleLineMaxCharacters, totalLineMaxCharacters) && IsFixAllowed(p))
+                    {
+                        if (!QualifiesForSplit(Utilities.AutoBreakLine(p.Text), singleLineMaxCharacters, totalLineMaxCharacters))
+                        {
+                            Paragraph newParagraph = new Paragraph(p);
+                            newParagraph.Text = Utilities.AutoBreakLine(p.Text);
+                            if (clearFixes)
+                                AddToListView(p, (splittedSubtitle.Paragraphs.Count + 1).ToString(), oldText);
+                            autoBreakedIndexes.Add(splittedSubtitle.Paragraphs.Count);
+                            splittedSubtitle.Paragraphs.Add(newParagraph);
+                            added = true;
+                            numberOfSplits++;
+                        }
+                        else
+                        {
+                            string text = Utilities.AutoBreakLine(p.Text);
+                            if (text.Contains(Environment.NewLine))
+                            {
+                                string[] arr = text.Split(Environment.NewLine.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
+                                if (arr.Length == 2)
+                                {
+                                    double duration = p.Duration.TotalMilliseconds / 2.0;
+                                    Paragraph newParagraph1 = new Paragraph(p);
+                                    Paragraph newParagraph2 = new Paragraph(p);
+                                    newParagraph1.Text = Utilities.AutoBreakLine(arr[0]);
+                                    newParagraph1.EndTime.TotalMilliseconds = p.StartTime.TotalMilliseconds + duration;
+                                    newParagraph2.Text = Utilities.AutoBreakLine(arr[1]);
+                                    newParagraph2.StartTime.TotalMilliseconds = newParagraph1.EndTime.TotalMilliseconds + 1;
+
+                                    if (clearFixes)
+                                        AddToListView(p, (splittedSubtitle.Paragraphs.Count + 1).ToString(), oldText);
+                                    splittedIndexes.Add(splittedSubtitle.Paragraphs.Count);
+                                    splittedIndexes.Add(splittedSubtitle.Paragraphs.Count + 1);
+
+                                    string p1 = Utilities.RemoveHtmlTags(newParagraph1.Text);
+                                    bool p1Ends = false;
+                                    if (p1.EndsWith(".") || p1.EndsWith("!") || p1.EndsWith("?") || p1.EndsWith(":") || p1.EndsWith(")") || p1.EndsWith("]") || p1.EndsWith("♪"))
+                                        p1Ends = true;
+
+                                    if (!p1Ends)
+                                    {                                        
+                                        string post = string.Empty;
+                                        if (newParagraph1.Text.EndsWith("</i>"))
+                                        {
+                                            post = "</i>";
+                                            newParagraph1.Text = newParagraph1.Text.Remove(newParagraph1.Text.Length - post.Length);
+                                        }
+                                        newParagraph1.Text += comboBoxLineContinuationEnd.Text.TrimEnd() + post;
+
+                                        string pre = string.Empty;
+                                        if (newParagraph2.Text.StartsWith("<i>"))
+                                        {
+                                            pre = "<i>";
+                                            newParagraph2.Text = newParagraph2.Text.Remove(0, pre.Length);
+                                        }
+                                        newParagraph2.Text = pre + comboBoxLineContinuationBegin.Text + newParagraph2.Text;
+                                    }
+
+                                    if (newParagraph1.Text.IndexOf("<i>") >= 0 && newParagraph1.Text.IndexOf("<i>") < 10 & newParagraph1.Text.IndexOf("</i>") < 0 &&
+                                        newParagraph2.Text.Contains("</i>") && newParagraph2.Text.IndexOf("<i>") < 0)
+                                    {
+                                        newParagraph1.Text += "</i>";
+                                        newParagraph2.Text = "<i>" + newParagraph2.Text;
+                                    }
+
+                                    splittedSubtitle.Paragraphs.Add(newParagraph1);
+                                    splittedSubtitle.Paragraphs.Add(newParagraph2);
+                                    added = true;
+                                    numberOfSplits++;
+                                }
+                            }
+                        }
+                    }
+                }
+                if (!added)
+                    splittedSubtitle.Paragraphs.Add(new Paragraph(p));
+            }
+            listViewFixes.ItemChecked += listViewFixes_ItemChecked;
+            splittedSubtitle.Renumber(1);
+            return splittedSubtitle;
+        }
+
+        private static string GetEndTag(string text)
+        {
+            if (string.IsNullOrEmpty(text))
+                return string.Empty;
+            text = text.Trim();
+            if (!text.EndsWith(">"))
+                return string.Empty;
+
+            string endTag = string.Empty;
+            int start = text.LastIndexOf("</");
+            if (start > 0 && start >= text.Length - 8)
+            {
+                endTag = text.Substring(start);
+            }
+            return endTag;
+        }
+
+        private static string GetStartTag(string text)
+        {
+            if (string.IsNullOrEmpty(text))
+                return string.Empty;
+            text = text.Trim();
+            if (!text.StartsWith("<"))
+                return string.Empty;
+
+            string startTag = string.Empty;
+            int end = text.IndexOf(">");
+            if (end > 0 && end < 25)
+            {
+                startTag = text.Substring(0, end + 1);
+            }
+            return startTag;
+        }
+
+        private static bool QualifiesForSplit(string text, int singleLineMaxCharacters, int totalLineMaxCharacters)
+        {
+            string s = Utilities.RemoveHtmlTags(text.Trim());
+            if (s.Length > totalLineMaxCharacters)
+                return true;
+
+            string[] arr = s.Split(Environment.NewLine.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
+            foreach (string line in arr)
+            {
+                if (line.Length > singleLineMaxCharacters)
+                    return true;
+            }
+            return false;
+        }
+
+        private void NumericUpDownMaxCharactersValueChanged(object sender, EventArgs e)
+        {
+            Cursor = Cursors.WaitCursor;
+            GeneratePreview(true);
+            Cursor = Cursors.Default;
+        }
+
+        private void NumericUpDownMaxMillisecondsBetweenLinesValueChanged(object sender, EventArgs e)
+        {
+            Cursor = Cursors.WaitCursor;
+            GeneratePreview(true);
+            Cursor = Cursors.Default;
+        }
+
+        private void listViewFixes_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            if (listViewFixes.SelectedIndices.Count > 0)
+            {
+                int index = listViewFixes.SelectedIndices[0];
+                ListViewItem item = listViewFixes.Items[index];
+                index = int.Parse(item.SubItems[1].Text);
+                SubtitleListview1.EnsureVisible(index);
+            }
+        }
+
+        private void SplitLongLines_Shown(object sender, EventArgs e)
+        {
+            GeneratePreview(true);
+            listViewFixes.Focus();
+            if (listViewFixes.Items.Count > 0)
+                listViewFixes.Items[0].Selected = true;
+        }
+
+        private void buttonOK_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.OK;
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+        }
+
+        private void labelMaxSingleLineLengthIs_Click(object sender, EventArgs e)
+        {
+            int index = int.Parse(labelMaxSingleLineLengthIs.Tag.ToString());
+            SubtitleListview1.SelectIndexAndEnsureVisible(index);
+        }
+
+        private void labelMaxLineLengthIs_Click(object sender, EventArgs e)
+        {
+            int index = int.Parse(labelMaxLineLengthIs.Tag.ToString());
+            SubtitleListview1.SelectIndexAndEnsureVisible(index);
+        }
+
+    }
+}

src/Forms/SplitLongLines.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

src/Logic/Language.cs

@@ -50,6 +50,7 @@ namespace Nikse.SubtitleEdit.Logic
         public LanguageStructure.ShowEarlierLater ShowEarlierLater;
         public LanguageStructure.ShowHistory ShowHistory;
         public LanguageStructure.SpellCheck SpellCheck;
+        public LanguageStructure.SplitLongLines SplitLongLines;
         public LanguageStructure.SplitSubtitle SplitSubtitle;
         public LanguageStructure.StartNumberingFrom StartNumberingFrom;
         public LanguageStructure.PointSync PointSync;
@@ -636,6 +637,7 @@ namespace Nikse.SubtitleEdit.Logic
                 UnicodeMusicSymbolsAnsiWarning = "Subtitle contains unicode music notes. Saving using ANSI file encoding will lose these. Continue with saving?",
                 NegativeTimeWarning = "Subtitle contains negative time codes. Continue with saving?",
                 BeforeMergeShortLines = "Before merge short lines",
+                BeforeSplitLongLines = "Before split long lines",
                 MergedShortLinesX = "Number of lines merged: {0}",
                 BeforeSetMinimumDisplayTimeBetweenParagraphs = "Before set minimum display time between paragraphs",
                 XMinimumDisplayTimeBetweenParagraphsChanged = "Number of lines with minimum display time between paragraphs changed: {0}",
@@ -707,6 +709,7 @@ namespace Nikse.SubtitleEdit.Logic
                         ChangeCasing = "Change casing...",
                         ChangeFrameRate = "Change frame rate...",
                         MergeShortLines = "Merge short lines...",
+                        SplitLongLines = "Split long lines...",
                         MinimumDisplayTimeBetweenParagraphs = "Minimum display time between paragraphs...",
                         SortBy = "Sort by",
                         TextAlphabetically = "Text - alphabetically",
@@ -1157,6 +1160,17 @@ can edit in same subtitle file (collaboration)",
                 SpellCheckAborted = "Spell check aborted",
             };
 
+            SplitLongLines = new LanguageStructure.SplitLongLines
+            {
+                Title = "Split long lines",
+                SingleLineMaximumLength = "Single line maximum length",
+                LineMaximumLength = "Line maximum length",
+                LineContinuationBeginEndStrings = "Line continuation begin/end strings",
+                NumberOfSplits = "Number of splits: {0}",
+                LongestSingleLineIsXAtY = "Longest single line length is {0} at line {1}",
+                LongestLineIsXAtY = "Longest total line length is {0} at line {1}",                                                
+            };
+
             SplitSubtitle = new LanguageStructure.SplitSubtitle
             {
                 Title = "Split subtitle",

src/Logic/LanguageStructure.cs

@@ -565,6 +565,7 @@
             public string UnicodeMusicSymbolsAnsiWarning { get; set; }
             public string NegativeTimeWarning { get; set; }
             public string BeforeMergeShortLines { get; set; }
+            public string BeforeSplitLongLines { get; set; }
             public string MergedShortLinesX { get; set; }
             public string BeforeSetMinimumDisplayTimeBetweenParagraphs { get; set; }
             public string XMinimumDisplayTimeBetweenParagraphsChanged { get; set; }
@@ -634,6 +635,7 @@
                     public string ChangeCasing { get; set; }
                     public string ChangeFrameRate { get; set; }
                     public string MergeShortLines { get; set; }
+                    public string SplitLongLines { get; set; }
                     public string MinimumDisplayTimeBetweenParagraphs { get; set; }
                     public string SortBy { get; set; }
                     public string TextAlphabetically { get; set; }
@@ -840,7 +842,6 @@
             public string MaximumMillisecondsBetween { get; set; }
             public string NumberOfMergesX { get; set; }
             public string LineNumber { get; set; }
-
             public string MergedText { get; set; }
         }
 
@@ -1094,6 +1095,17 @@
             public string SpellCheckAborted { get; set; }
         }
 
+        public class SplitLongLines
+        {
+            public string Title { get; set; }
+            public string SingleLineMaximumLength { get; set; }
+            public string LineMaximumLength { get; set; }
+            public string LineContinuationBeginEndStrings { get; set; }
+            public string NumberOfSplits { get; set; }
+            public string LongestSingleLineIsXAtY { get; set; }
+            public string LongestLineIsXAtY { get; set; }
+        }
+
         public class SplitSubtitle
         {
             public string Title { get; set; }

src/Logic/Utilities.cs

@@ -271,7 +271,7 @@ namespace Nikse.SubtitleEdit.Logic
 
         public static string AutoBreakLine(string text, int mininumLength)
         {
-            if (text.Length < 5)
+            if (text.Length < mininumLength)
                 return text;
 
             string temp = RemoveHtmlTags(text);

src/Resources/da-DK.xml

@@ -408,6 +408,7 @@
         <ChangeCasing>Skift store/små bogstaver...</ChangeCasing>
         <ChangeFrameRate>Skift frame rate...</ChangeFrameRate>
         <MergeShortLines>Flet korte linjer...</MergeShortLines>
+        <SplitLongLines>Split lange linjer...</SplitLongLines>
         <MinimumDisplayTimeBetweenParagraphs>Minimum visningstid mellem tekster...</MinimumDisplayTimeBetweenParagraphs>
         <SortBy>Sorter efter</SortBy>
         <TextAlphabetically>Tekst - alfabetisk</TextAlphabetically>
@@ -718,6 +719,7 @@ Fortsæt?</SubtitleAppendPrompt>
     <UnicodeMusicSymbolsAnsiWarning>Undertekst indeholder unicode tegn. Gemmes i ANSI filformat vil disse gå tabt. Fortsæt?</UnicodeMusicSymbolsAnsiWarning>
     <NegativeTimeWarning>Undertekst indeholder negative tidskoder. Gem?</NegativeTimeWarning>
     <BeforeMergeShortLines>Før fusionere korte linjer</BeforeMergeShortLines>
+    <BeforeSplitLongLines>Før split lange linjer</BeforeSplitLongLines>
     <MergedShortLinesX>Antal linjer fusionerede: {0}</MergedShortLinesX>
     <BeforeSetMinimumDisplayTimeBetweenParagraphs>Før ret minimum visningstid mellem tekster</BeforeSetMinimumDisplayTimeBetweenParagraphs>
     <XMinimumDisplayTimeBetweenParagraphsChanged>Antallet af linjer med minimum visningstid mellem tekster ændret: {0}</XMinimumDisplayTimeBetweenParagraphsChanged>
@@ -982,6 +984,15 @@ Fortsæt?</SubtitleAppendPrompt>
     <SpellCheckCompleted>Stavekontrol færdig</SpellCheckCompleted>
     <SpellCheckAborted>Stavekontrol afbrudt</SpellCheckAborted>
   </SpellCheck>
+  <SplitLongLines>
+    <Title>Split lange linjer</Title>
+    <SingleLineMaximumLength>Enkelt linje maksimale længde</SingleLineMaximumLength>
+    <LineMaximumLength>Line maksimale længde</LineMaximumLength>
+    <LineContinuationBeginEndStrings>Line fortsæt begynd/slut tekst</LineContinuationBeginEndStrings>
+    <NumberOfSplits>Antal splits: {0}</NumberOfSplits>
+    <LongestSingleLineIsXAtY>Længste enkelt linje længde er {0} på linie {1}</LongestSingleLineIsXAtY>
+    <LongestLineIsXAtY>Længste samlet linjelængde er {0} på linie {1}</LongestLineIsXAtY>
+  </SplitLongLines>
   <SplitSubtitle>
     <Title>Split undertekst</Title>
     <Description1>Indtast længden af første del af video-eller browse</Description1>

src/SubtitleEdit.csproj

@@ -343,6 +343,12 @@
     <Compile Include="Forms\SpellCheck.Designer.cs">
       <DependentUpon>SpellCheck.cs</DependentUpon>
     </Compile>
+    <Compile Include="Forms\SplitLongLines.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Forms\SplitLongLines.Designer.cs">
+      <DependentUpon>SplitLongLines.cs</DependentUpon>
+    </Compile>
     <Compile Include="Forms\SplitSubtitle.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -702,6 +708,9 @@
       <DependentUpon>SpellCheck.cs</DependentUpon>
       <SubType>Designer</SubType>
     </EmbeddedResource>
+    <EmbeddedResource Include="Forms\SplitLongLines.resx">
+      <DependentUpon>SplitLongLines.cs</DependentUpon>
+    </EmbeddedResource>
     <EmbeddedResource Include="Forms\SplitSubtitle.resx">
       <DependentUpon>SplitSubtitle.cs</DependentUpon>
       <SubType>Designer</SubType>