src/plugins/texteditor/indenter.cpp

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  33
  34 #include "indenter.h"
  35 #include "basetexteditor.h"
  36 #include "tabsettings.h"
  37
  38 using namespace TextEditor;
  39
  40 Indenter::Indenter()
  41 {}
  42
  43 Indenter::~Indenter()
  44 {}
  45
  46 bool Indenter::isElectricCharacter(const QChar &) const
  47 {
  48     return false;
  49 }
  50
  51 void Indenter::indentBlock(QTextDocument *doc,
  52                              const QTextBlock &block,
  53                              const QChar &typedChar,
  54                              BaseTextEditorWidget *editor)
  55 {
  56     Q_UNUSED(doc);
  57     Q_UNUSED(block);
  58     Q_UNUSED(typedChar);
  59     Q_UNUSED(editor);
  60 }
  61
  62 void Indenter::indent(QTextDocument *doc,
  63                       const QTextCursor &cursor,
  64                       const QChar &typedChar,
  65                       BaseTextEditorWidget *editor)
  66 {
  67     if (cursor.hasSelection()) {
  68         QTextBlock block = doc->findBlock(cursor.selectionStart());
  69         const QTextBlock end = doc->findBlock(cursor.selectionEnd()).next();
  70         do {
  71             indentBlock(doc, block, typedChar, editor);
  72             block = block.next();
  73         } while (block.isValid() && block != end);
  74     } else {
  75         indentBlock(doc, cursor.block(), typedChar, editor);
  76     }
  77 }
  78
  79 void Indenter::reindent(QTextDocument *doc, const QTextCursor &cursor, BaseTextEditorWidget *editor)
  80 {
  81     if (cursor.hasSelection()) {
  82         QTextBlock block = doc->findBlock(cursor.selectionStart());
  83         const QTextBlock end = doc->findBlock(cursor.selectionEnd()).next();
  84
  85         const TabSettings &ts = editor->tabSettings();
  86
  87         // skip empty blocks
  88         while (block.isValid() && block != end) {
  89             QString bt = block.text();
  90             if (ts.firstNonSpace(bt) < bt.size())
  91                 break;
  92             indentBlock(doc, block, QChar::Null, editor);
  93             block = block.next();
  94         }
  95
  96         int previousIndentation = ts.indentationColumn(block.text());
  97         indentBlock(doc, block, QChar::Null, editor);
  98         int currentIndentation = ts.indentationColumn(block.text());
  99         int delta = currentIndentation - previousIndentation;
 100
 101         block = block.next();
 102         while (block.isValid() && block != end) {
 103             ts.reindentLine(block, delta);
 104             block = block.next();
 105         }
 106     } else {
 107         indentBlock(doc, cursor.block(), QChar::Null, editor);
 108     }
 109 }