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Diffstat (limited to 'tools/designer/editor/cindent.cpp')
| -rw-r--r-- | tools/designer/editor/cindent.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/tools/designer/editor/cindent.cpp b/tools/designer/editor/cindent.cpp new file mode 100644 index 0000000..545c374 --- /dev/null +++ b/tools/designer/editor/cindent.cpp @@ -0,0 +1,163 @@ +/********************************************************************** +** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved. +** +** This file is part of Qt Designer. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free Qt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with +** the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "cindent.h" +#include "qregexp.h" + +extern int indentForBottomLine( const QStringList& program, QChar typedIn ); +extern void setTabSize( int s ); +extern void setIndentSize( int s ); + +CIndent::CIndent() + : QTextIndent(), tabSize( 8 ), indentSize( 4 ), + autoIndent( TRUE ), keepTabs( TRUE ), lastDoc( 0 ) +{ +} + +static int indentation( const QString &s ) +{ + if ( s.simplifyWhiteSpace().length() == 0 ) + return 0; + int i = 0; + int ind = 0; + while ( i < (int)s.length() ) { + QChar c = s.at( i ); + if ( c == ' ' ) + ind++; + else if ( c == '\t' ) + ind += 8; + else + break; + ++i; + } + return ind; +} + +void CIndent::tabify( QString &s ) +{ + if ( !keepTabs ) + return; + int i = 0; + for ( ;; ) { + for ( int j = i; j < (int)s.length(); ++j ) { + if ( s[ j ] != ' ' && s[ j ] != '\t' ) { + if ( j > i ) { + QString t = s.mid( i, j - i ); + int spaces = 0; + for ( int k = 0; k < (int)t.length(); ++k ) + spaces += ( t[ k ] == ' ' ? 1 : tabSize ); + s.remove( i, t.length() ); + int tabs = spaces / tabSize; + spaces = spaces - ( tabSize * tabs ); + QString tmp; + tmp.fill( ' ', spaces ); + if ( spaces > 0 ) + s.insert( i, tmp ); + tmp.fill( '\t', tabs ); + if ( tabs > 0 ) + s.insert( i, tmp ); + } + break; + } + } + i = s.find( '\n', i ); + if ( i == -1 ) + break; + ++i; + } +} + +void CIndent::indentLine( QTextParagraph *p, int &oldIndent, int &newIndent ) +{ + QString indentString; + indentString.fill( ' ', newIndent ); + indentString.append( "a" ); + tabify( indentString ); + indentString.remove( indentString.length() - 1, 1 ); + newIndent = indentString.length(); + oldIndent = 0; + while ( p->length() > 0 && ( p->at( 0 )->c == ' ' || p->at( 0 )->c == '\t' ) ) { + ++oldIndent; + p->remove( 0, 1 ); + } + if ( p->string()->length() == 0 ) + p->append( " " ); + if ( !indentString.isEmpty() ) + p->insert( 0, indentString ); +} + + +void CIndent::indent( QTextDocument *doc, QTextParagraph *p, int *oldIndent, int *newIndent ) +{ + lastDoc = doc; + int oi = indentation( p->string()->toString() ); + QStringList code; + QTextParagraph *parag = doc->firstParagraph(); + while ( parag ) { + code << parag->string()->toString(); + if ( parag == p ) + break; + parag = parag->next(); + } + + int ind = indentForBottomLine( code, QChar::null ); + indentLine( p, oi, ind ); + if ( oldIndent ) + *oldIndent = oi; + if ( newIndent ) + *newIndent = ind; +} + +void CIndent::reindent() +{ + if ( !lastDoc ) + return; + // #### this is sloooooooow (O(n^2)) + QTextParagraph *parag = lastDoc->firstParagraph(); + while ( parag ) { + indent( lastDoc, parag, 0, 0 ); + parag = parag->next(); + } +} + +void CIndent::setTabSize( int ts ) +{ + tabSize = ts; + ::setTabSize( ts ); +} + +void CIndent::setIndentSize( int is ) +{ + indentSize = is; + ::setIndentSize( is ); +} |