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Code Issues Projects Releases Wiki Activity

Fix selecting a word in text box

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This commit is contained in:
Nikolaj Olsson 2020-12-01 07:38:45 +01:00
parent 2dc9ec4b59
commit e6be424833
5 changed files with 358 additions and 296 deletions
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9
LanguageMaster.xml
View File

@ -1002,11 +1002,10 @@ Go to "Options -> Settings -> Tools" to enter your Google translate API ke
<Compare>&amp;Compare...</Compare>
<Statistics>Statisti&amp;cs...</Statistics>
<Plugins>Plugins...</Plugins>
<ImportSubtitleFromVideoFile>Import subtitle from video file...</ImportSubtitleFromVideoFile>
<ImportOcrFromDvd>Import/OCR subtitle from VOB/IFO (DVD)...</ImportOcrFromDvd>
<ImportOcrVobSubSubtitle>Import/OCR VobSub (sub/idx) subtitle...</ImportOcrVobSubSubtitle>
<ImportBluRaySupFile>Import/OCR Blu-ray (.sup) subtitle file...</ImportBluRaySupFile>
<ImportXSub>Import/OCR XSub from DivX/avi...</ImportXSub>
<ImportSubtitleFromMatroskaFile>Import subtitle from Matroska (.mkv) file...</ImportSubtitleFromMatroskaFile>
<ImportSubtitleWithManualChosenEncoding>Import subtitle with manually chosen encoding...</ImportSubtitleWithManualChosenEncoding>
<ImportText>Import plain text...</ImportText>
<ImportImages>Import images...</ImportImages>
@ -1441,8 +1440,8 @@ Continue?</SubtitleAppendPrompt>
<BeforeTypeWriterEffect>Before typewriter effect</BeforeTypeWriterEffect>
<BeforeKaraokeEffect>Before karaoke effect</BeforeKaraokeEffect>
<BeforeImportingDvdSubtitle>Before importing subtitle from DVD</BeforeImportingDvdSubtitle>
<OpenMatroskaFile>Open Matroska file...</OpenMatroskaFile>
<MatroskaFiles>Matroska files</MatroskaFiles>
<OpenSubtitleVideoFile>Open subtitle from video file...</OpenSubtitleVideoFile>
<VideoFiles>Video files</VideoFiles>
<NoSubtitlesFound>No subtitles found</NoSubtitlesFound>
<NotAValidMatroskaFileX>This is not a valid Matroska file: {0}</NotAValidMatroskaFileX>
<BlurayNotSubtitlesFound>Blu-ray sup file does not contain any subtitles or contains errors - try demuxing again.</BlurayNotSubtitlesFound>
@ -1468,8 +1467,6 @@ Continue?</SubtitleAppendPrompt>
<VobSubFiles>VobSub subtitle files</VobSubFiles>
<OpenBluRaySupFile>Open Blu-ray .sup file...</OpenBluRaySupFile>
<BluRaySupFiles>Blu-ray .sup files</BluRaySupFiles>
<OpenXSubFiles>Open XSub file...</OpenXSubFiles>
<XSubFiles>XSub files</XSubFiles>
<BeforeImportingVobSubFile>Before importing VobSub subtitle</BeforeImportingVobSubFile>
<BeforeImportingBluRaySupFile>Before importing Blu-ray sup file</BeforeImportingBluRaySupFile>
<BeforeImportingBdnXml>Before importing BDN xml file</BeforeImportingBdnXml>

367
src/ui/Controls/SETextBox.cs
View File

@ -8,7 +8,7 @@ using System.Windows.Forms;
namespace Nikse.SubtitleEdit.Controls
{
/// <summary>
/// TextBox with drag and drop.
/// TextBox that can be either a normal text box or a rich text box (or a html text box).
/// </summary>
public sealed class SETextBox : Panel
{
@ -20,16 +20,10 @@ namespace Nikse.SubtitleEdit.Controls
public new event EventHandler Leave;
public new event MouseEventHandler MouseMove;
private string _dragText = string.Empty;
private int _dragStartFrom;
private long _dragStartTicks;
private bool _dragRemoveOld;
private bool _dragFromThis;
private long _gotFocusTicks;
private bool _checkRtfChange = true;
private RichTextBox _richTextBoxTemp;
private RichTextBox _uiTextBox;
private TextBox _textBox;
private SimpleTextBox _simpleTextBox;
private int _mouseMoveSelectionLength;
private WebBrowserEditBox _htmlBox;
private const bool UseWebBrowser = false;
@ -43,10 +37,10 @@ namespace Nikse.SubtitleEdit.Controls
{
ContextMenuStrip oldContextMenuStrip = null;
var oldEnabled = true;
if (_textBox != null)
if (_simpleTextBox != null)
{
oldContextMenuStrip = _textBox.ContextMenuStrip;
oldEnabled = _textBox.Enabled;
oldContextMenuStrip = _simpleTextBox.ContextMenuStrip;
oldEnabled = _simpleTextBox.Enabled;
}
else if (_uiTextBox != null)
{
@ -64,11 +58,11 @@ namespace Nikse.SubtitleEdit.Controls
BackColor = SystemColors.WindowFrame;
Controls.Clear();
_textBox?.Dispose();
_simpleTextBox?.Dispose();
_richTextBoxTemp?.Dispose();
_uiTextBox?.Dispose();
_htmlBox?.Dispose();
_textBox = null;
_simpleTextBox = null;
_htmlBox = null;
_uiTextBox = null;
_richTextBoxTemp = null;
@ -155,16 +149,16 @@ namespace Nikse.SubtitleEdit.Controls
}
else
{
_textBox = new TextBox { BorderStyle = BorderStyle.None, Multiline = true };
_textBox.KeyDown += (sender, args) =>
_simpleTextBox = new SimpleTextBox { BorderStyle = BorderStyle.None, Multiline = true };
_simpleTextBox.KeyDown += (sender, args) =>
{
if (args.KeyData == (Keys.Control | Keys.Back))
{
UiUtil.ApplyControlBackspace(_textBox);
UiUtil.ApplyControlBackspace(_simpleTextBox);
args.SuppressKeyPress = true;
}
};
InitializeBackingControl(_textBox);
InitializeBackingControl(_simpleTextBox);
}
UpdateFontAndColors();
@ -178,12 +172,6 @@ namespace Nikse.SubtitleEdit.Controls
private void InitializeBackingControl(Control textBox)
{
textBox.AllowDrop = true;
textBox.DragEnter += SETextBox_DragEnter;
textBox.DragDrop += SETextBox_DragDrop;
textBox.GotFocus += (sender, args) => { _gotFocusTicks = DateTime.UtcNow.Ticks; };
textBox.MouseDown += SETextBox_MouseDown;
textBox.MouseUp += SETextBox_MouseUp;
textBox.TextChanged += TextChangedHighlight;
Controls.Add(textBox);
textBox.Dock = DockStyle.Fill;
@ -202,7 +190,7 @@ namespace Nikse.SubtitleEdit.Controls
{
UpdateFontAndColors(_uiTextBox);
UpdateFontAndColors(_richTextBoxTemp);
UpdateFontAndColors(_textBox);
UpdateFontAndColors(_simpleTextBox);
}
public void UpdateFontAndColors(Control textBox)
@ -235,9 +223,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.Text;
return _simpleTextBox.Text;
}
if (_uiTextBox != null)
@ -261,9 +249,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Text = value;
_simpleTextBox.Text = value;
return;
}
@ -300,9 +288,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.SelectionStart;
return _simpleTextBox.SelectionStart;
}
if (_uiTextBox != null)
@ -319,9 +307,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.SelectionStart = value;
_simpleTextBox.SelectionStart = value;
}
else if (_uiTextBox != null)
{
@ -338,9 +326,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.SelectionLength;
return _simpleTextBox.SelectionLength;
}
if (_uiTextBox != null)
@ -357,9 +345,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.SelectionLength = value;
_simpleTextBox.SelectionLength = value;
}
else if (_uiTextBox != null)
{
@ -376,9 +364,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.HideSelection;
return _simpleTextBox.HideSelection;
}
if (_uiTextBox != null)
@ -395,9 +383,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.HideSelection = value;
_simpleTextBox.HideSelection = value;
}
else if (_uiTextBox != null)
{
@ -414,9 +402,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.SelectedText;
return _simpleTextBox.SelectedText;
}
if (_uiTextBox != null)
@ -434,9 +422,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.SelectedText = value;
_simpleTextBox.SelectedText = value;
}
else if (_uiTextBox != null)
{
@ -453,9 +441,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.Multiline;
return _simpleTextBox.Multiline;
}
if (_uiTextBox != null)
@ -472,9 +460,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Multiline = value;
_simpleTextBox.Multiline = value;
}
else if (_uiTextBox != null)
{
@ -487,9 +475,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.Enabled;
return _simpleTextBox.Enabled;
}
if (_uiTextBox != null)
@ -506,9 +494,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Enabled = value;
_simpleTextBox.Enabled = value;
}
else if (_uiTextBox != null)
{
@ -525,24 +513,24 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox == null && _uiTextBox == null)
if (_simpleTextBox == null && _uiTextBox == null)
{
return RichTextBoxScrollBars.None;
}
if (_textBox != null)
if (_simpleTextBox != null)
{
if (_textBox.ScrollBars == System.Windows.Forms.ScrollBars.Both)
if (_simpleTextBox.ScrollBars == System.Windows.Forms.ScrollBars.Both)
{
return RichTextBoxScrollBars.Both;
}
if (_textBox.ScrollBars == System.Windows.Forms.ScrollBars.Horizontal)
if (_simpleTextBox.ScrollBars == System.Windows.Forms.ScrollBars.Horizontal)
{
return RichTextBoxScrollBars.Horizontal;
}
if (_textBox.ScrollBars == System.Windows.Forms.ScrollBars.Vertical)
if (_simpleTextBox.ScrollBars == System.Windows.Forms.ScrollBars.Vertical)
{
return RichTextBoxScrollBars.Vertical;
}
@ -554,22 +542,22 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
if (value == RichTextBoxScrollBars.Both || value == RichTextBoxScrollBars.ForcedBoth)
{
_textBox.ScrollBars = System.Windows.Forms.ScrollBars.Both;
_simpleTextBox.ScrollBars = System.Windows.Forms.ScrollBars.Both;
}
else if (value == RichTextBoxScrollBars.Horizontal || value == RichTextBoxScrollBars.ForcedHorizontal)
{
_textBox.ScrollBars = System.Windows.Forms.ScrollBars.Horizontal;
_simpleTextBox.ScrollBars = System.Windows.Forms.ScrollBars.Horizontal;
}
else if (value == RichTextBoxScrollBars.Vertical || value == RichTextBoxScrollBars.ForcedVertical)
{
_textBox.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
_simpleTextBox.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
}
_textBox.ScrollBars = System.Windows.Forms.ScrollBars.None;
_simpleTextBox.ScrollBars = System.Windows.Forms.ScrollBars.None;
}
else if (_uiTextBox != null)
{
@ -582,9 +570,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.ContextMenuStrip;
return _simpleTextBox.ContextMenuStrip;
}
if (_uiTextBox != null)
@ -601,9 +589,9 @@ namespace Nikse.SubtitleEdit.Controls
}
set
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.ContextMenuStrip = value;
_simpleTextBox.ContextMenuStrip = value;
}
else if (_uiTextBox != null)
{
@ -618,9 +606,9 @@ namespace Nikse.SubtitleEdit.Controls
public int GetCharIndexFromPosition(Point pt)
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.GetCharIndexFromPosition(pt);
return _simpleTextBox.GetCharIndexFromPosition(pt);
}
if (_uiTextBox != null)
@ -638,9 +626,9 @@ namespace Nikse.SubtitleEdit.Controls
public void SelectAll()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.SelectAll();
_simpleTextBox.SelectAll();
}
else if (_uiTextBox != null)
{
@ -654,9 +642,9 @@ namespace Nikse.SubtitleEdit.Controls
public void Clear()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Clear();
_simpleTextBox.Clear();
}
else if (_uiTextBox != null)
{
@ -670,9 +658,9 @@ namespace Nikse.SubtitleEdit.Controls
public void Undo()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Undo();
_simpleTextBox.Undo();
}
else if (_uiTextBox != null)
{
@ -686,9 +674,9 @@ namespace Nikse.SubtitleEdit.Controls
public void ClearUndo()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.ClearUndo();
_simpleTextBox.ClearUndo();
}
else if (_uiTextBox != null)
{
@ -702,9 +690,9 @@ namespace Nikse.SubtitleEdit.Controls
public void Copy()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Copy();
_simpleTextBox.Copy();
}
else if (_uiTextBox != null)
{
@ -718,9 +706,9 @@ namespace Nikse.SubtitleEdit.Controls
public void Cut()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Cut();
_simpleTextBox.Cut();
}
else if (_uiTextBox != null)
{
@ -734,9 +722,9 @@ namespace Nikse.SubtitleEdit.Controls
public void Paste()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Paste();
_simpleTextBox.Paste();
}
else if (_uiTextBox!= null)
{
@ -752,9 +740,9 @@ namespace Nikse.SubtitleEdit.Controls
{
get
{
if (_textBox != null)
if (_simpleTextBox != null)
{
return _textBox.Focused;
return _simpleTextBox.Focused;
}
if (_uiTextBox != null)
@ -773,9 +761,9 @@ namespace Nikse.SubtitleEdit.Controls
public new void Focus()
{
if (_textBox != null)
if (_simpleTextBox != null)
{
_textBox.Focus();
_simpleTextBox.Focus();
}
else if (_uiTextBox != null)
{
@ -787,207 +775,6 @@ namespace Nikse.SubtitleEdit.Controls
}
}
private void SETextBox_MouseUp(object sender, MouseEventArgs e)
{
_dragRemoveOld = false;
_dragFromThis = false;
}
private void SETextBox_MouseDown(object sender, MouseEventArgs e)
{
if (MouseButtons == MouseButtons.Left && !string.IsNullOrEmpty(_dragText))
{
var pt = new Point(e.X, e.Y);
int index = GetCharIndexFromPosition(pt);
if (index >= _dragStartFrom && index <= _dragStartFrom + _dragText.Length)
{
// re-make selection
SelectionStart = _dragStartFrom;
SelectionLength = _dragText.Length;
try
{
var dataObject = new DataObject();
dataObject.SetText(_dragText, TextDataFormat.UnicodeText);
dataObject.SetText(_dragText, TextDataFormat.Text);
_dragFromThis = true;
if (ModifierKeys == Keys.Control)
{
_dragRemoveOld = false;
DoDragDrop(dataObject, DragDropEffects.Copy);
}
else if (ModifierKeys == Keys.None)
{
_dragRemoveOld = true;
DoDragDrop(dataObject, DragDropEffects.Move);
}
}
catch
{
// ignored
}
}
}
}
private void SETextBox_DragDrop(object sender, DragEventArgs e)
{
var pt = PointToClient(new Point(e.X, e.Y));
int index = GetCharIndexFromPosition(pt);
string newText;
if (e.Data.GetDataPresent(DataFormats.UnicodeText))
{
newText = (string)e.Data.GetData(DataFormats.UnicodeText);
}
else
{
newText = (string)e.Data.GetData(DataFormats.Text);
}
if (string.IsNullOrWhiteSpace(Text))
{
Text = newText;
}
else
{
bool justAppend = index == Text.Length - 1 && index > 0;
const string expectedChars = ":;]<.!?؟";
if (_dragFromThis)
{
_dragFromThis = false;
long milliseconds = (DateTime.UtcNow.Ticks - _dragStartTicks) / 10000;
if (milliseconds < 400)
{
SelectionLength = 0;
if (justAppend)
{
index++;
}
SelectionStart = index;
return; // too fast - nobody can drag and drop this fast
}
if (index >= _dragStartFrom && index <= _dragStartFrom + _dragText.Length)
{
return; // don't drop same text at same position
}
if (_dragRemoveOld)
{
_dragRemoveOld = false;
Text = Text.Remove(_dragStartFrom, _dragText.Length);
// fix spaces
if (_dragStartFrom == 0 && Text.Length > 0 && Text[0] == ' ')
{
Text = Text.Remove(0, 1);
index--;
}
else if (_dragStartFrom > 1 && Text.Length > _dragStartFrom + 1 && Text[_dragStartFrom] == ' ' && Text[_dragStartFrom - 1] == ' ')
{
Text = Text.Remove(_dragStartFrom, 1);
if (_dragStartFrom < index)
{
index--;
}
}
else if (_dragStartFrom > 0 && Text.Length > _dragStartFrom + 1 && Text[_dragStartFrom] == ' ' && expectedChars.Contains(Text[_dragStartFrom + 1]))
{
Text = Text.Remove(_dragStartFrom, 1);
if (_dragStartFrom < index)
{
index--;
}
}
// fix index
if (index > _dragStartFrom)
{
index -= _dragText.Length;
}
if (index < 0)
{
index = 0;
}
}
}
if (justAppend)
{
index = Text.Length;
Text += newText;
}
else
{
Text = Text.Insert(index, newText);
}
// fix start spaces
int endIndex = index + newText.Length;
if (index > 0 && !newText.StartsWith(' ') && Text[index - 1] != ' ')
{
Text = Text.Insert(index, " ");
endIndex++;
}
else if (index > 0 && newText.StartsWith(' ') && Text[index - 1] == ' ')
{
Text = Text.Remove(index, 1);
endIndex--;
}
// fix end spaces
if (endIndex < Text.Length && !newText.EndsWith(' ') && Text[endIndex] != ' ')
{
bool lastWord = expectedChars.Contains(Text[endIndex]);
if (!lastWord)
{
Text = Text.Insert(endIndex, " ");
}
}
else if (endIndex < Text.Length && newText.EndsWith(' ') && Text[endIndex] == ' ')
{
Text = Text.Remove(endIndex, 1);
}
SelectionStart = index + 1;
UiUtil.SelectWordAtCaret(this);
}
_dragRemoveOld = false;
_dragFromThis = false;
}
private void SETextBox_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text) || e.Data.GetDataPresent(DataFormats.UnicodeText))
{
e.Effect = ModifierKeys == Keys.Control ? DragDropEffects.Copy : DragDropEffects.Move;
}
else
{
e.Effect = DragDropEffects.None;
}
}
private const int WM_LBUTTONDOWN = 0x0201;
protected override void WndProc(ref Message m)
{
if (m.Msg == WM_LBUTTONDOWN)
{
long milliseconds = (DateTime.UtcNow.Ticks - _gotFocusTicks) / 10000;
if (milliseconds > 10)
{
_dragText = SelectedText;
_dragStartFrom = SelectionStart;
_dragStartTicks = DateTime.UtcNow.Ticks;
}
}
base.WndProc(ref m);
}
public void HighlightHtmlText()
{
if (Configuration.Settings.General.RightToLeftMode)
@ -1005,12 +792,12 @@ namespace Nikse.SubtitleEdit.Controls
}
}
if (_textBox != null)
if (_simpleTextBox != null)
{
if (Configuration.Settings.General.CenterSubtitleInTextBox &&
_textBox.TextAlign != HorizontalAlignment.Center)
_simpleTextBox.TextAlign != HorizontalAlignment.Center)
{
_textBox.TextAlign = HorizontalAlignment.Center;
_simpleTextBox.TextAlign = HorizontalAlignment.Center;
}
return;

256
src/ui/Controls/SimpleTextBox.cs Normal file
View File

@ -0,0 +1,256 @@
using Nikse.SubtitleEdit.Core.Common;
using Nikse.SubtitleEdit.Logic;
using System;
using System.Drawing;
using System.Windows.Forms;
namespace Nikse.SubtitleEdit.Controls
{
/// <summary>
/// TextBox with drag and drop and double click selects current word.
/// </summary>
public sealed class SimpleTextBox : TextBox
{
private string _dragText = string.Empty;
private int _dragStartFrom;
private long _dragStartTicks;
private bool _dragRemoveOld;
private bool _dragFromThis;
private long _gotFocusTicks;
public SimpleTextBox()
{
AllowDrop = true;
DragEnter += SETextBox_DragEnter;
DragDrop += SETextBox_DragDrop;
MouseDown += SETextBox_MouseDown;
MouseUp += SETextBox_MouseUp;
KeyDown += SETextBox_KeyDown;
// To fix issue where WM_LBUTTONDOWN got wrong "SelectedText" (only in undocked mode)
GotFocus += (sender, args) => { _gotFocusTicks = DateTime.UtcNow.Ticks; };
}
private void SETextBox_KeyDown(object sender, KeyEventArgs e)
{
if (e.Modifiers == Keys.Control && e.KeyCode == Keys.A)
{
SelectAll();
e.SuppressKeyPress = true;
}
else if (e.Modifiers == Keys.Control && e.KeyCode == Keys.Back)
{
UiUtil.ApplyControlBackspace(this);
e.SuppressKeyPress = true;
}
}
private void SETextBox_MouseUp(object sender, MouseEventArgs e)
{
_dragRemoveOld = false;
_dragFromThis = false;
}
private void SETextBox_MouseDown(object sender, MouseEventArgs e)
{
if (MouseButtons == MouseButtons.Left && !string.IsNullOrEmpty(_dragText))
{
var pt = new Point(e.X, e.Y);
int index = GetCharIndexFromPosition(pt);
if (index >= _dragStartFrom && index <= _dragStartFrom + _dragText.Length)
{
// re-make selection
SelectionStart = _dragStartFrom;
SelectionLength = _dragText.Length;
try
{
var dataObject = new DataObject();
dataObject.SetText(_dragText, TextDataFormat.UnicodeText);
dataObject.SetText(_dragText, TextDataFormat.Text);
_dragFromThis = true;
if (ModifierKeys == Keys.Control)
{
_dragRemoveOld = false;
DoDragDrop(dataObject, DragDropEffects.Copy);
}
else if (ModifierKeys == Keys.None)
{
_dragRemoveOld = true;
DoDragDrop(dataObject, DragDropEffects.Move);
}
}
catch
{
// ignored
}
}
}
}
private void SETextBox_DragDrop(object sender, DragEventArgs e)
{
var pt = PointToClient(new Point(e.X, e.Y));
int index = GetCharIndexFromPosition(pt);
string newText;
if (e.Data.GetDataPresent(DataFormats.UnicodeText))
{
newText = (string)e.Data.GetData(DataFormats.UnicodeText);
}
else
{
newText = (string)e.Data.GetData(DataFormats.Text);
}
if (string.IsNullOrWhiteSpace(Text))
{
Text = newText;
}
else
{
bool justAppend = index == Text.Length - 1 && index > 0;
const string expectedChars = ":;]<.!?؟";
if (_dragFromThis)
{
_dragFromThis = false;
long milliseconds = (DateTime.UtcNow.Ticks - _dragStartTicks) / 10000;
if (milliseconds < 400)
{
SelectionLength = 0;
if (justAppend)
{
index++;
}
SelectionStart = index;
return; // too fast - nobody can drag'n'drop this fast
}
if (index >= _dragStartFrom && index <= _dragStartFrom + _dragText.Length)
{
return; // don't drop same text at same position
}
if (_dragRemoveOld)
{
_dragRemoveOld = false;
Text = Text.Remove(_dragStartFrom, _dragText.Length);
// fix spaces
if (_dragStartFrom == 0 && Text.Length > 0 && Text[0] == ' ')
{
Text = Text.Remove(0, 1);
index--;
}
else if (_dragStartFrom > 1 && Text.Length > _dragStartFrom + 1 && Text[_dragStartFrom] == ' ' && Text[_dragStartFrom - 1] == ' ')
{
Text = Text.Remove(_dragStartFrom, 1);
if (_dragStartFrom < index)
{
index--;
}
}
else if (_dragStartFrom > 0 && Text.Length > _dragStartFrom + 1 && Text[_dragStartFrom] == ' ' && expectedChars.Contains(Text[_dragStartFrom + 1]))
{
Text = Text.Remove(_dragStartFrom, 1);
if (_dragStartFrom < index)
{
index--;
}
}
// fix index
if (index > _dragStartFrom)
{
index -= _dragText.Length;
}
if (index < 0)
{
index = 0;
}
}
}
if (justAppend)
{
index = Text.Length;
Text += newText;
}
else
{
Text = Text.Insert(index, newText);
}
// fix start spaces
int endIndex = index + newText.Length;
if (index > 0 && !newText.StartsWith(' ') && Text[index - 1] != ' ')
{
Text = Text.Insert(index, " ");
endIndex++;
}
else if (index > 0 && newText.StartsWith(' ') && Text[index - 1] == ' ')
{
Text = Text.Remove(index, 1);
endIndex--;
}
// fix end spaces
if (endIndex < Text.Length && !newText.EndsWith(' ') && Text[endIndex] != ' ')
{
bool lastWord = expectedChars.Contains(Text[endIndex]);
if (!lastWord)
{
Text = Text.Insert(endIndex, " ");
}
}
else if (endIndex < Text.Length && newText.EndsWith(' ') && Text[endIndex] == ' ')
{
Text = Text.Remove(endIndex, 1);
}
SelectionStart = index + 1;
UiUtil.SelectWordAtCaret(this);
}
_dragRemoveOld = false;
_dragFromThis = false;
}
private void SETextBox_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text) || e.Data.GetDataPresent(DataFormats.UnicodeText))
{
e.Effect = ModifierKeys == Keys.Control ? DragDropEffects.Copy : DragDropEffects.Move;
}
else
{
e.Effect = DragDropEffects.None;
}
}
private const int WM_DBLCLICK = 0xA3;
private const int WM_LBUTTONDBLCLK = 0x203;
private const int WM_LBUTTONDOWN = 0x0201;
protected override void WndProc(ref Message m)
{
if (m.Msg == WM_DBLCLICK || m.Msg == WM_LBUTTONDBLCLK)
{
UiUtil.SelectWordAtCaret(this);
return;
}
if (m.Msg == WM_LBUTTONDOWN)
{
long milliseconds = (DateTime.UtcNow.Ticks - _gotFocusTicks) / 10000;
if (milliseconds > 10)
{
_dragText = SelectedText;
_dragStartFrom = SelectionStart;
_dragStartTicks = DateTime.UtcNow.Ticks;
}
}
base.WndProc(ref m);
}
}
}

19
src/ui/Logic/UiUtil.cs
View File

@ -1017,6 +1017,25 @@ namespace Nikse.SubtitleEdit.Logic
textBox.SelectionLength = endIndex - startIndex;
}
public static void SelectWordAtCaret(TextBox textBox)
{
var text = textBox.Text;
var endIndex = textBox.SelectionStart;
var startIndex = endIndex;
while (startIndex > 0 && !IsSpaceCategory(CharUnicodeInfo.GetUnicodeCategory(text[startIndex - 1])) && !BreakChars.Contains(text[startIndex - 1]))
{
startIndex--;
}
textBox.SelectionStart = startIndex;
while (endIndex < text.Length && !IsSpaceCategory(CharUnicodeInfo.GetUnicodeCategory(text[endIndex])) && !BreakChars.Contains(text[endIndex]))
{
endIndex++;
}
textBox.SelectionLength = endIndex - startIndex;
}
private static bool IsSpaceCategory(UnicodeCategory c)
{
return c == UnicodeCategory.SpaceSeparator || c == UnicodeCategory.Control || c == UnicodeCategory.LineSeparator || c == UnicodeCategory.ParagraphSeparator;

3
src/ui/SubtitleEdit.csproj
View File

@ -73,6 +73,9 @@
<Compile Include="Controls\SETextBox.cs">
<SubType>Component</SubType>
</Compile>
<Compile Include="Controls\SimpleTextBox.cs">
<SubType>Component</SubType>
</Compile>
<Compile Include="Controls\VideoPlayerContainer.cs">
<SubType>Component</SubType>
</Compile>