fakevim: implement indenting a block and autoindent

src/plugins/fakevim/fakevimhandler.cpp

@@ -40,8 +40,6 @@
 // Qt Creator. The idea is to keep this file here in a "clean" state that
 // allows easy reuse with any QTextEdit or QPlainTextEdit derived class.
 
-//#include <indenter.h>
-
 #include <QtCore/QDebug>
 #include <QtCore/QFile>
 #include <QtCore/QObject>
@@ -1718,11 +1716,15 @@ int FakeVimHandler::Private::indentDist() const
     const TextEditor::TextBlockIterator end(m_tc.block().next());
     return indenter.indentForBottomLine(current, begin, end, QChar(' '));
 #endif
-    return 0;
+    int amount = 0;
+    emit q->indentRegion(&amount, m_tc.block(), m_tc.block(), QChar(' '));
+    return amount;
 }
 
 void FakeVimHandler::Private::indentRegion(QTextBlock begin, QTextBlock end, QChar typedChar)
 {
+    int amount = 0;
+    emit q->indentRegion(&amount, begin, end, typedChar);
 #if 0
     // FIXME: Make independent of TextEditor
     if (!m_texteditor)

src/plugins/fakevim/fakevimhandler.h

@@ -36,6 +36,7 @@
 
 #include <QtCore/QObject>
 #include <QtGui/QTextEdit>
+#include <QtGui/QTextBlock>
 
 QT_BEGIN_NAMESPACE
 class QString;
@@ -80,6 +81,7 @@ signals:
     void writeFileRequested(bool *handled,
         const QString &fileName, const QString &contents);
     void moveToMatchingParenthesis(bool *moved, bool *forward, QTextCursor *cursor);
+    void indentRegion(int *amount, QTextBlock begin, QTextBlock end, QChar typedChar);
 
 private:
     bool eventFilter(QObject *ob, QEvent *ev);

src/plugins/fakevim/fakevimplugin.cpp

@@ -56,9 +56,12 @@
 #include <texteditor/interactionsettings.h>
 #include <texteditor/tabsettings.h>
 #include <texteditor/texteditorsettings.h>
+#include <texteditor/textblockiterator.h>
 
 #include <utils/qtcassert.h>
 
+#include <indenter.h>
+
 #include <QtCore/QDebug>
 #include <QtCore/QtPlugin>
 #include <QtCore/QObject>
@@ -123,6 +126,7 @@ private slots:
     void changeSelection(const QList<QTextEdit::ExtraSelection> &selections);
     void writeFile(bool *handled, const QString &fileName, const QString &contents);
     void moveToMatchingParenthesis(bool *moved, bool *forward, QTextCursor *cursor);
+    void indentRegion(int *amount, QTextBlock begin, QTextBlock end,  QChar typedChar);
 
 private:
     FakeVimPlugin *q;
@@ -206,6 +210,8 @@ void FakeVimPluginPrivate::installHandler(Core::IEditor *editor)
         this, SLOT(changeSelection(QList<QTextEdit::ExtraSelection>)));
     connect(handler, SIGNAL(moveToMatchingParenthesis(bool*,bool*,QTextCursor*)),
         this, SLOT(moveToMatchingParenthesis(bool*,bool*,QTextCursor*)));
+    connect(handler, SIGNAL(indentRegion(int*,QTextBlock,QTextBlock,QChar)),
+        this, SLOT(indentRegion(int*,QTextBlock,QTextBlock,QChar)));
 
     handler->setupWidget();
     handler->setExtraData(editor);
@@ -289,6 +295,45 @@ void FakeVimPluginPrivate::moveToMatchingParenthesis(bool *moved, bool *forward,
     }
 }
 
+void FakeVimPluginPrivate::indentRegion(int *amount, QTextBlock begin, QTextBlock end,
+      QChar typedChar)
+{
+    FakeVimHandler *handler = qobject_cast<FakeVimHandler *>(sender());
+    if (!handler)
+        return;
+
+    BaseTextEditor *bt = qobject_cast<BaseTextEditor *>(handler->widget());
+    if (!bt)
+        return;
+
+    typedef SharedTools::Indenter<TextEditor::TextBlockIterator> Indenter;
+    Indenter &indenter = Indenter::instance();
+    indenter.setIndentSize(bt->tabSettings().m_indentSize);
+    indenter.setTabSize(bt->tabSettings().m_tabSize);
+
+    const QTextDocument *doc = begin.document();
+    const TextEditor::TextBlockIterator docStart(doc->begin());
+    QTextBlock cur = begin;
+    do {
+        if (typedChar == 0 && cur.text().simplified().isEmpty()) {
+            *amount = 0;
+            if (cur != end) {
+                QTextCursor cursor(cur);
+                while (!cursor.atBlockEnd())
+                    cursor.deleteChar();
+            }
+        } else {
+            const TextEditor::TextBlockIterator current(cur);
+            const TextEditor::TextBlockIterator next(cur.next());
+            *amount = indenter.indentForBottomLine(current, docStart, next, typedChar);
+            if (cur != end)
+                bt->tabSettings().indentLine(cur, *amount);
+        }
+        if (cur != end)
+           cur = cur.next();
+    } while (cur != end);
+}
+
 void FakeVimPluginPrivate::removeHandler()
 {
     if (FakeVimHandler *handler = qobject_cast<FakeVimHandler *>(sender())) {