Bug [#2167]. Add line copy format on clipboard, compatible with Visual Studio.

2 files changed, 37 insertions, 1 deletions

diff --git a/doc/ScintillaHistory.html b/doc/ScintillaHistory.html
index 49a0ca0e0..0f0dac916 100644
--- a/doc/ScintillaHistory.html
+++ b/doc/ScintillaHistory.html
@@ -599,6 +599,10 @@
 	GCS_RESULTSTR set.
 	</li>
 	<li>
+	With Qt on Win32 add support for line copy format on clipboard, compatible with Visual Studio.
+	<a href="https://sourceforge.net/p/scintilla/bugs/2167/">Bug #2167</a>.
+	</li>
+	<li>
 	On GTK with Wayland fix display of windowed IME.
 	<a href="https://sourceforge.net/p/scintilla/bugs/2149/">Bug #2149</a>.
 	</li>
diff --git a/qt/ScintillaEditBase/ScintillaQt.cpp b/qt/ScintillaEditBase/ScintillaQt.cpp
index 9a2545a38..4236c7f86 100644
--- a/qt/ScintillaEditBase/ScintillaQt.cpp
+++ b/qt/ScintillaEditBase/ScintillaQt.cpp
@@ -61,6 +61,8 @@ void ScintillaQt::execCommand(QAction *action)
 #if defined(Q_OS_WIN)
 static const QString sMSDEVColumnSelect("MSDEVColumnSelect");
 static const QString sWrappedMSDEVColumnSelect("application/x-qt-windows-mime;value=\"MSDEVColumnSelect\"");
+static const QString sVSEditorLineCutCopy("VisualStudioEditorOperationsLineCutCopyClipboardTag");
+static const QString sWrappedVSEditorLineCutCopy("application/x-qt-windows-mime;value=\"VisualStudioEditorOperationsLineCutCopyClipboardTag\"");
 #elif defined(Q_OS_MAC)
 static const QString sScintillaRecPboardType("com.scintilla.utf16-plain-text.rectangular");
 static const QString sScintillaRecMimeType("text/x-scintilla.utf16-plain-text.rectangular");
@@ -189,6 +191,14 @@ static void AddRectangularToMime(QMimeData *mimeData, QString su)
 #endif
 }
 
+static void AddLineCutCopyToMime(QMimeData *mimeData)
+{
+#if defined(Q_OS_WIN)
+	// Add an empty marker
+	mimeData->setData(sVSEditorLineCutCopy, QByteArray());
+#endif
+}
+
 static bool IsRectangularInMime(const QMimeData *mimeData)
 {
 	QStringList formats = mimeData->formats();
@@ -213,6 +223,23 @@ static bool IsRectangularInMime(const QMimeData *mimeData)
 	return false;
 }
 
+static bool IsLineCutCopyInMime(const QMimeData *mimeData)
+{
+	QStringList formats = mimeData->formats();
+	for (int i = 0; i < formats.size(); ++i) {
+#if defined(Q_OS_WIN)
+		// Visual Studio Line Cut/Copy markers
+		// If line cut/copy made by this application, see base name.
+		if (formats[i] == sVSEditorLineCutCopy)
+			return true;
+		// Otherwise see wrapped name.
+		if (formats[i] == sWrappedVSEditorLineCutCopy)
+			return true;
+#endif
+	}
+	return false;
+}
+
 bool ScintillaQt::ValidCodePage(int codePage) const
 {
 	return codePage == 0
@@ -302,6 +329,10 @@ void ScintillaQt::CopyToModeClipboard(const SelectionText &selectedText, QClipbo
 		AddRectangularToMime(mimeData, su);
 	}
 
+	if (selectedText.lineCopy) {
+		AddLineCutCopyToMime(mimeData);
+	}
+
 	// Allow client code to add additional data (e.g rich text).
 	emit aboutToCopy(mimeData);
 
@@ -327,6 +358,7 @@ void ScintillaQt::PasteFromMode(QClipboard::Mode clipboardMode_)
 	QClipboard *clipboard = QApplication::clipboard();
 	const QMimeData *mimeData = clipboard->mimeData(clipboardMode_);
 	bool isRectangular = IsRectangularInMime(mimeData);
+	bool isLine = SelectionEmpty() && IsLineCutCopyInMime(mimeData);
 	QString text = clipboard->text(clipboardMode_);
 	QByteArray utext = BytesForDocument(text);
 	std::string dest(utext.constData(), utext.length());
@@ -336,7 +368,7 @@ void ScintillaQt::PasteFromMode(QClipboard::Mode clipboardMode_)
 	UndoGroup ug(pdoc);
 	ClearSelection(multiPasteMode == SC_MULTIPASTE_EACH);
 	InsertPasteShape(selText.Data(), selText.Length(),
-		selText.rectangular ? pasteRectangular : pasteStream);
+		isRectangular ? pasteRectangular : (isLine ? pasteLine : pasteStream));
 	EnsureCaretVisible();
 }