texteditor: Add Cursors to Line Ends command

Adds a new function that creates new cursors at the end of
each line that was previously selected.

Change-Id: I6510002eae17af9cf00a2eedc5e56ef6fdcc8ef3
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/texteditor/texteditor.cpp

@@ -530,6 +530,7 @@ public:
     void moveLineUpDown(bool up);
     void copyLineUpDown(bool up);
     void addSelectionNextFindMatch();
+    void addCursorsToLineEnds();
     void saveCurrentCursorPositionForNavigation();
     void updateHighlights();
     void updateCurrentLineInScrollbar();
@@ -6822,6 +6823,42 @@ void TextEditorWidget::copyLine()
     copy();
 }
 
+void TextEditorWidgetPrivate::addCursorsToLineEnds()
+{
+    MultiTextCursor multiCursor = q->multiTextCursor();
+    MultiTextCursor newMultiCursor;
+    const QList<QTextCursor> cursors = multiCursor.cursors();
+
+    if (multiCursor.cursorCount() == 0)
+        return;
+
+    QTextDocument *document = q->document();
+
+    for (const QTextCursor &cursor : cursors) {
+        if (!cursor.hasSelection())
+            continue;
+
+        QTextBlock block = document->findBlock(cursor.selectionStart());
+
+        while (block.isValid()) {
+            int blockEnd = block.position() + block.length() - 1;
+            if (blockEnd >= cursor.selectionEnd()) {
+                break;
+            }
+
+            QTextCursor newCursor(document);
+            newCursor.setPosition(blockEnd);
+            newMultiCursor.addCursor(newCursor);
+
+            block = block.next();
+        }
+    }
+
+    if (!newMultiCursor.isNull()) {
+        q->setMultiTextCursor(newMultiCursor);
+    }
+}
+
 void TextEditorWidgetPrivate::addSelectionNextFindMatch()
 {
     MultiTextCursor cursor = q->multiTextCursor();
@@ -6902,6 +6939,11 @@ void TextEditorWidget::duplicateSelection()
     d->duplicateSelection(false);
 }
 
+void TextEditorWidget::addCursorsToLineEnds()
+{
+    d->addCursorsToLineEnds();
+}
+
 void TextEditorWidget::addSelectionNextFindMatch()
 {
     d->addSelectionNextFindMatch();

src/plugins/texteditor/texteditor.h

@@ -384,6 +384,7 @@ public:
     void selectLineEnding(int index);
     void updateTextLineEndingLabel();
     void addSelectionNextFindMatch();
+    void addCursorsToLineEnds();
 
     void gotoBlockStart();
     void gotoBlockEnd();

src/plugins/texteditor/texteditoractionhandler.cpp

@@ -329,6 +329,10 @@ void TextEditorActionHandlerPrivate::createActions()
             [] (TextEditorWidget *w) { w->copyLine(); }, false, tr("Copy &Line"),
             QKeySequence(tr("Ctrl+Ins")),
             G_EDIT_TEXT, advancedEditMenu);
+    registerAction(ADD_CURSORS_TO_LINE_ENDS,
+            [] (TextEditorWidget *w) { w->addCursorsToLineEnds(); }, false, tr("Create Cursors at Selected Line Ends"),
+            QKeySequence(tr("Alt+Shift+I")),
+            G_EDIT_TEXT, advancedEditMenu);
     registerAction(ADD_SELECT_NEXT_FIND_MATCH,
             [] (TextEditorWidget *w) { w->addSelectionNextFindMatch(); }, false, tr("Add Next Occurrence to Selection"),
             QKeySequence(tr("Ctrl+D")),

src/plugins/texteditor/texteditorconstants.h

@@ -181,6 +181,7 @@ const char SORT_SELECTED_LINES[]   = "TextEditor.SortSelectedLines";
 const char CUT_LINE[]              = "TextEditor.CutLine";
 const char COPY_LINE[]             = "TextEditor.CopyLine";
 const char ADD_SELECT_NEXT_FIND_MATCH[] = "TextEditor.AddSelectionNextFindMatch";
+const char ADD_CURSORS_TO_LINE_ENDS[] = "TextEditor.AddCursorsAtLineEnd";
 const char DUPLICATE_SELECTION[]   = "TextEditor.DuplicateSelection";
 const char DUPLICATE_SELECTION_AND_COMMENT[] = "TextEditor.DuplicateSelectionAndComment";
 const char DELETE_LINE[]           = "TextEditor.DeleteLine";