opie-write first draft

1 files changed, 706 insertions, 0 deletions

diff --git a/noncore/apps/opie-write/qrichtext_p.cpp b/noncore/apps/opie-write/qrichtext_p.cpp
new file mode 100644
index 0000000..fb20730
--- a/dev/null
+++ b/noncore/apps/opie-write/qrichtext_p.cpp
@@ -0,0 +1,706 @@
+/****************************************************************************
+** $Id$
+**
+** Implementation of the internal Qt classes dealing with rich text
+**
+** Created : 990101
+**
+** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be distributed under the terms of the Q Public License
+** as defined by Trolltech AS of Norway and appearing in the file
+** LICENSE.QPL included in the packaging of this file.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
+** 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
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
+**   information about Qt Commercial License Agreements.
+** See http://www.trolltech.com/qpl/ for QPL licensing information.
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include "qrichtext_p.h"
+
+using namespace Qt3;
+
+QTextCommand::~QTextCommand() {}
+QTextCommand::Commands QTextCommand::type() const { return Invalid; }
+
+
+QTextCustomItem::~QTextCustomItem() {}
+void QTextCustomItem::adjustToPainter( QPainter* p){ if ( p ) width = 0; }
+QTextCustomItem::Placement QTextCustomItem::placement() const { return PlaceInline; }
+
+bool QTextCustomItem::ownLine() const { return FALSE; }
+void QTextCustomItem::resize( int nwidth ){ width = nwidth; }
+void QTextCustomItem::invalidate() {}
+
+bool QTextCustomItem::isNested() const { return FALSE; }
+int QTextCustomItem::minimumWidth() const { return 0; }
+
+QString QTextCustomItem::richText() const { return QString::null; }
+
+bool QTextCustomItem::enter( QTextCursor *, QTextDocument *&doc, QTextParag *&parag, int &idx, int &ox, int &oy, bool atEnd )
+{
+    doc = doc; parag = parag; idx = idx; ox = ox; oy = oy; Q_UNUSED( atEnd ) return TRUE;
+							
+}
+bool QTextCustomItem::enterAt( QTextCursor *, QTextDocument *&doc, QTextParag *&parag, int &idx, int &ox, int &oy, const QPoint & )
+{
+    doc = doc; parag = parag; idx = idx; ox = ox; oy = oy; return TRUE;
+}
+bool QTextCustomItem::next( QTextCursor *, QTextDocument *&doc, QTextParag *&parag, int &idx, int &ox, int &oy )
+{
+    doc = doc; parag = parag; idx = idx; ox = ox; oy = oy; return TRUE;
+}
+bool QTextCustomItem::prev( QTextCursor *, QTextDocument *&doc, QTextParag *&parag, int &idx, int &ox, int &oy )
+{
+    doc = doc; parag = parag; idx = idx; ox = ox; oy = oy; return TRUE;
+}
+bool QTextCustomItem::down( QTextCursor *, QTextDocument *&doc, QTextParag *&parag, int &idx, int &ox, int &oy )
+{
+    doc = doc; parag = parag; idx = idx; ox = ox; oy = oy; return TRUE;
+}
+bool QTextCustomItem::up( QTextCursor *, QTextDocument *&doc, QTextParag *&parag, int &idx, int &ox, int &oy )
+{
+    doc = doc; parag = parag; idx = idx; ox = ox; oy = oy; return TRUE;
+}
+
+void QTextFlow::setPageSize( int ps ) { pagesize = ps; }
+bool QTextFlow::isEmpty() { return leftItems.isEmpty() && rightItems.isEmpty(); }
+
+void QTextTableCell::invalidate() { cached_width = -1; cached_sizehint = -1; }
+
+void QTextTable::invalidate() { cachewidth = -1; }
+
+QTextParagData::~QTextParagData() {}
+void QTextParagData::join( QTextParagData * ) {}
+
+QTextFormatter::~QTextFormatter() {}
+void QTextFormatter::setWrapEnabled( bool b ) { wrapEnabled = b; }
+void QTextFormatter::setWrapAtColumn( int c ) { wrapColumn = c; }
+
+
+
+int QTextCursor::x() const
+{
+    QTextStringChar *c = string->at( idx );
+    int curx = c->x;
+    if ( !c->rightToLeft &&
+	 c->c.isSpace() &&
+	 idx > 0 &&
+	 ( string->alignment() & Qt3::AlignJustify ) == Qt3::AlignJustify )
+	curx = string->at( idx - 1 )->x + string->string()->width( idx - 1 );
+    if ( c->rightToLeft )
+	curx += string->string()->width( idx );
+    return curx;
+}
+
+int QTextCursor::y() const
+{
+    int dummy, line;
+    string->lineStartOfChar( idx, &dummy, &line );
+    return string->lineY( line );
+}
+
+bool QTextDocument::hasSelection( int id, bool visible ) const
+{
+    return ( selections.find( id ) != selections.end() &&
+	     ( !visible ||
+	       ( (QTextDocument*)this )->selectionStartCursor( id ) !=
+	       ( (QTextDocument*)this )->selectionEndCursor( id ) ) );
+}
+
+void QTextDocument::setSelectionStart( int id, QTextCursor *cursor )
+{
+    QTextDocumentSelection sel;
+    sel.startCursor = *cursor;
+    sel.endCursor = *cursor;
+    sel.swapped = FALSE;
+    selections[ id ] = sel;
+}
+
+QTextParag *QTextDocument::paragAt( int i ) const
+{
+    QTextParag* p = curParag;
+    if ( !p || p->paragId() > i )
+	p = fParag;
+    while ( p && p->paragId() != i )
+	p = p->next();
+    ((QTextDocument*)this)->curParag = p;
+    return p;
+}
+
+
+QTextFormat::~QTextFormat()
+{
+}
+
+QTextFormat::QTextFormat()
+    : fm( QFontMetrics( fn ) ), linkColor( TRUE ), logicalFontSize( 3 ), stdSize( qApp->font().pointSize() ),
+      different( NoFlags )
+{
+    ref = 0;
+
+    usePixelSizes = FALSE;
+    if ( stdSize == -1 ) {
+	stdSize = qApp->font().pixelSize();
+	usePixelSizes = TRUE;
+    }
+    
+    missp = FALSE;
+    ha = AlignNormal;
+    collection = 0;
+}
+
+QTextFormat::QTextFormat( const QStyleSheetItem *style )
+    : fm( QFontMetrics( fn ) ), linkColor( TRUE ), logicalFontSize( 3 ), stdSize( qApp->font().pointSize() ),
+      different( NoFlags )
+{
+    ref = 0;
+
+    usePixelSizes = FALSE;
+    if ( stdSize == -1 ) {
+	stdSize = qApp->font().pixelSize();
+	usePixelSizes = TRUE;
+    }
+
+    this->style = style->name();
+    missp = FALSE;
+    ha = AlignNormal;
+    collection = 0;
+    fn = QFont( style->fontFamily(),
+		style->fontSize(),
+		style->fontWeight(),
+		style->fontItalic() );
+    fn.setUnderline( style->fontUnderline() );
+    col = style->color();
+    fm = QFontMetrics( fn );
+    leftBearing = fm.minLeftBearing();
+    rightBearing = fm.minRightBearing();
+    hei = fm.lineSpacing();
+    asc = fm.ascent() + (fm.leading()+1)/2;
+    dsc = fm.descent();
+    missp = FALSE;
+    ha = AlignNormal;
+    memset( widths, 0, 256 );
+    generateKey();
+    addRef();
+    updateStyleFlags();
+}
+
+QTextFormat::QTextFormat( const QFont &f, const QColor &c, QTextFormatCollection *parent )
+    : fn( f ), col( c ), fm( QFontMetrics( f ) ), linkColor( TRUE ),
+      logicalFontSize( 3 ), stdSize( f.pointSize() ), different( NoFlags )
+{
+    ref = 0;
+    usePixelSizes = FALSE;
+    if ( stdSize == -1 ) {
+	stdSize = f.pixelSize();
+	usePixelSizes = TRUE;
+    }
+    collection = parent;
+    leftBearing = fm.minLeftBearing();
+    rightBearing = fm.minRightBearing();
+    hei = fm.lineSpacing();
+    asc = fm.ascent() + (fm.leading()+1)/2;
+    dsc = fm.descent();
+    missp = FALSE;
+    ha = AlignNormal;
+    memset( widths, 0, 256 );
+    generateKey();
+    addRef();
+    updateStyleFlags();
+}
+
+QTextFormat::QTextFormat( const QTextFormat &f )
+    : fm( f.fm )
+{
+    ref = 0;
+    collection = 0;
+    fn = f.fn;
+    col = f.col;
+    leftBearing = f.leftBearing;
+    rightBearing = f.rightBearing;
+    memset( widths, 0, 256 );
+    hei = f.hei;
+    asc = f.asc;
+    dsc = f.dsc;
+    stdSize = f.stdSize;
+    usePixelSizes = f.usePixelSizes;
+    logicalFontSize = f.logicalFontSize;
+    missp = f.missp;
+    ha = f.ha;
+    k = f.k;
+    linkColor = f.linkColor;
+    style = f.style;
+    different = f.different;
+    addRef();
+}
+
+QTextFormat& QTextFormat::operator=( const QTextFormat &f )
+{
+    ref = 0;
+    collection = f.collection;
+    fn = f.fn;
+    col = f.col;
+    fm = f.fm;
+    leftBearing = f.leftBearing;
+    rightBearing = f.rightBearing;
+    memset( widths, 0, 256 );
+    hei = f.hei;
+    asc = f.asc;
+    dsc = f.dsc;
+    stdSize = f.stdSize;
+    usePixelSizes = f.usePixelSizes;
+    logicalFontSize = f.logicalFontSize;
+    missp = f.missp;
+    ha = f.ha;
+    k = f.k;
+    linkColor = f.linkColor;
+    style = f.style;
+    different = f.different;
+    addRef();
+    return *this;
+}
+
+void QTextFormat::update()
+{
+    fm = QFontMetrics( fn );
+    leftBearing = fm.minLeftBearing();
+    rightBearing = fm.minRightBearing();
+    hei = fm.lineSpacing();
+    asc = fm.ascent() + (fm.leading()+1)/2;
+    dsc = fm.descent();
+    memset( widths, 0, 256 );
+    generateKey();
+    updateStyleFlags();
+}
+
+
+QPainter* QTextFormat::pntr = 0;
+
+void QTextFormat::setPainter( QPainter *p )
+{
+    pntr = p;
+}
+
+QPainter*  QTextFormat::painter()
+{
+    return pntr;
+}
+
+
+int QTextFormat::minLeftBearing() const
+{
+    if ( !pntr || !pntr->isActive() )
+	return leftBearing;
+    pntr->setFont( fn );
+    return pntr->fontMetrics().minLeftBearing();
+}
+
+int QTextFormat::minRightBearing() const
+{
+    if ( !pntr || !pntr->isActive() )
+	return rightBearing;
+    pntr->setFont( fn );
+    return pntr->fontMetrics().minRightBearing();
+}
+
+int QTextFormat::height() const
+{
+    if ( !pntr || !pntr->isActive() )
+	return hei;
+    pntr->setFont( fn );
+    return pntr->fontMetrics().lineSpacing();
+}
+
+int QTextFormat::ascent() const
+{
+    if ( !pntr || !pntr->isActive() )
+	return asc;
+    pntr->setFont( fn );
+    return pntr->fontMetrics().ascent() + (pntr->fontMetrics().leading()+1)/2;
+}
+
+int QTextFormat::descent() const
+{
+    if ( !pntr || !pntr->isActive() )
+	return dsc;
+    pntr->setFont( fn );
+    return pntr->fontMetrics().descent();
+}
+
+int QTextFormat::leading() const
+{
+    if ( !pntr || !pntr->isActive() )
+	return fm.leading();
+    pntr->setFont( fn );
+    return pntr->fontMetrics().leading();
+}
+
+void QTextFormat::generateKey()
+{
+    k = getKey( fn, col, isMisspelled(), vAlign() );
+}
+
+QString QTextFormat::getKey( const QFont &fn, const QColor &col, bool misspelled, VerticalAlignment a )
+{
+    QString k = fn.key();
+    k += '/';
+    k += QString::number( (uint)col.rgb() );
+    k += '/';
+    k += QString::number( (int)misspelled );
+    k += '/';
+    k += QString::number( (int)a );
+    return k;
+}
+
+void QTextFormat::updateStyle()
+{
+    if ( !collection || !collection->styleSheet() )
+	return;
+    QStyleSheetItem *item = collection->styleSheet()->item( style );
+    if ( !item )
+	return;
+    if ( !( different & Color ) && item->color().isValid() )
+	col = item->color();
+    if ( !( different & Size ) && item->fontSize() != -1 )
+	fn.setPointSize( item->fontSize() );
+    if ( !( different & Family ) && !item->fontFamily().isEmpty() )
+	fn.setFamily( item->fontFamily() );
+    if ( !( different & Bold ) && item->fontWeight() != -1 )
+	fn.setWeight( item->fontWeight() );
+    if ( !( different & Italic ) && item->definesFontItalic() )
+	fn.setItalic( item->fontItalic() );
+    if ( !( different & Underline ) && item->definesFontUnderline() )
+	fn.setUnderline( item->fontUnderline() );
+    generateKey();
+    update();
+
+}
+
+void QTextFormat::updateStyleFlags()
+{
+    different = NoFlags;
+    if ( !collection || !collection->styleSheet() )
+	return;
+    QStyleSheetItem *item = collection->styleSheet()->item( style );
+    if ( !item )
+	return;
+    if ( item->color() != col )
+	different |= Color;
+    if ( item->fontSize() != fn.pointSize() )
+	different |= Size;
+    if ( item->fontFamily() != fn.family() )
+	different |= Family;
+    if ( item->fontItalic() != fn.italic() )
+	different |= Italic;
+    if ( item->fontUnderline() != fn.underline() )
+	different |= Underline;
+    if ( item->fontWeight() != fn.weight() )
+	different |= Bold;
+}
+
+QString QTextString::toString( const QMemArray<QTextStringChar> &data )
+{
+    QString s;
+    int l = data.size();
+    s.setUnicode( 0, l );
+    QTextStringChar *c = data.data();
+    QChar *uc = (QChar *)s.unicode();
+    while ( l-- ) {
+	*uc = c->c;
+	// ### workaround so that non-breaking whitespaces are drawn
+	// properly, actually this should be fixed in QFont somewhere
+	if ( *uc == (char)0xa0 )
+	    *uc = 0x20;
+	uc++;
+	c++;
+    }
+
+    return s;
+}
+
+QString QTextString::toString() const
+{
+    return toString( data );
+}
+
+void QTextParag::setSelection( int id, int start, int end )
+{
+    QMap<int, QTextParagSelection>::ConstIterator it = selections().find( id );
+    if ( it != mSelections->end() ) {
+	if ( start == ( *it ).start && end == ( *it ).end )
+	    return;
+    }
+
+    QTextParagSelection sel;
+    sel.start = start;
+    sel.end = end;
+    (*mSelections)[ id ] = sel;
+    setChanged( TRUE, TRUE );
+}
+
+void QTextParag::removeSelection( int id )
+{
+    if ( !hasSelection( id ) )
+	return;
+    if ( mSelections )
+	mSelections->remove( id );
+    setChanged( TRUE, TRUE );
+}
+
+int QTextParag::selectionStart( int id ) const
+{
+    if ( !mSelections )
+	return -1;
+    QMap<int, QTextParagSelection>::ConstIterator it = mSelections->find( id );
+    if ( it == mSelections->end() )
+	return -1;
+    return ( *it ).start;
+}
+
+int QTextParag::selectionEnd( int id ) const
+{
+    if ( !mSelections )
+	return -1;
+    QMap<int, QTextParagSelection>::ConstIterator it = mSelections->find( id );
+    if ( it == mSelections->end() )
+	return -1;
+    return ( *it ).end;
+}
+
+bool QTextParag::hasSelection( int id ) const
+{
+    if ( !mSelections )
+	return FALSE;
+    QMap<int, QTextParagSelection>::ConstIterator it = mSelections->find( id );
+    if ( it == mSelections->end() )
+	return FALSE;
+    return ( *it ).start != ( *it ).end || length() == 1;
+}
+
+bool QTextParag::fullSelected( int id ) const
+{
+    if ( !mSelections )
+	return FALSE;
+    QMap<int, QTextParagSelection>::ConstIterator it = mSelections->find( id );
+    if ( it == mSelections->end() )
+	return FALSE;
+    return ( *it ).start == 0 && ( *it ).end == str->length() - 1;
+}
+
+int QTextParag::lineY( int l ) const
+{
+    if ( l > (int)lineStarts.count() - 1 ) {
+	qWarning( "QTextParag::lineY: line %d out of range!", l );
+	return 0;
+    }
+
+    if ( !isValid() )
+	( (QTextParag*)this )->format();
+
+    QMap<int, QTextParagLineStart*>::ConstIterator it = lineStarts.begin();
+    while ( l-- > 0 )
+	++it;
+    return ( *it )->y;
+}
+
+int QTextParag::lineBaseLine( int l ) const
+{
+    if ( l > (int)lineStarts.count() - 1 ) {
+	qWarning( "QTextParag::lineBaseLine: line %d out of range!", l );
+	return 10;
+    }
+
+    if ( !isValid() )
+	( (QTextParag*)this )->format();
+
+    QMap<int, QTextParagLineStart*>::ConstIterator it = lineStarts.begin();
+    while ( l-- > 0 )
+	++it;
+    return ( *it )->baseLine;
+}
+
+int QTextParag::lineHeight( int l ) const
+{
+    if ( l > (int)lineStarts.count() - 1 ) {
+	qWarning( "QTextParag::lineHeight: line %d out of range!", l );
+	return 15;
+    }
+
+    if ( !isValid() )
+	( (QTextParag*)this )->format();
+
+    QMap<int, QTextParagLineStart*>::ConstIterator it = lineStarts.begin();
+    while ( l-- > 0 )
+	++it;
+    return ( *it )->h;
+}
+
+void QTextParag::lineInfo( int l, int &y, int &h, int &bl ) const
+{
+    if ( l > (int)lineStarts.count() - 1 ) {
+	qWarning( "QTextParag::lineInfo: line %d out of range!", l );
+	qDebug( "%d %d", (int)lineStarts.count() - 1, l );
+	y = 0;
+	h = 15;
+	bl = 10;
+	return;
+    }
+
+    if ( !isValid() )
+	( (QTextParag*)this )->format();
+
+    QMap<int, QTextParagLineStart*>::ConstIterator it = lineStarts.begin();
+    while ( l-- > 0 )
+	++it;
+    y = ( *it )->y;
+    h = ( *it )->h;
+    bl = ( *it )->baseLine;
+}
+
+int QTextParag::alignment() const
+{
+    if ( align != -1 )
+	return align;
+    QStyleSheetItem *item = style();
+    if ( !item )
+	return Qt3::AlignAuto;
+    if ( mStyleSheetItemsVec ) {
+	for ( int i = 0; i < (int)mStyleSheetItemsVec->size(); ++i ) {
+	    item = (*mStyleSheetItemsVec)[ i ];
+	    if ( item->alignment() != QStyleSheetItem::Undefined )
+		return item->alignment();
+	}
+    }
+    return Qt3::AlignAuto;
+}
+
+QPtrVector<QStyleSheetItem> QTextParag::styleSheetItems() const
+{
+    QPtrVector<QStyleSheetItem> vec;
+    if ( mStyleSheetItemsVec ) {
+	vec.resize( mStyleSheetItemsVec->size() );
+	for ( int i = 0; i < (int)vec.size(); ++i )
+	    vec.insert( i, (*mStyleSheetItemsVec)[ i ] );
+    }
+    return vec;
+}
+
+QStyleSheetItem *QTextParag::style() const
+{
+    if ( !mStyleSheetItemsVec || mStyleSheetItemsVec->size() == 0 )
+	return 0;
+    return (*mStyleSheetItemsVec)[ mStyleSheetItemsVec->size() - 1 ];
+}
+
+int QTextParag::numberOfSubParagraph() const
+{
+    if ( list_val != -1 )
+	return list_val;
+    if ( numSubParag != -1 )
+ 	return numSubParag;
+    int n = 0;
+    QTextParag *p = (QTextParag*)this;
+    while ( p && ( styleSheetItemsVec().size() >= p->styleSheetItemsVec().size() &&
+	    styleSheetItemsVec()[ (int)p->styleSheetItemsVec().size() - 1 ] == p->style() ||
+		   p->styleSheetItemsVec().size() >= styleSheetItemsVec().size() &&
+		   p->styleSheetItemsVec()[ (int)styleSheetItemsVec().size() - 1 ] == style() ) ) {
+	if ( p->style() == style() && listStyle() != p->listStyle()
+	     && p->styleSheetItemsVec().size() == styleSheetItemsVec().size() )
+	    break;
+	if ( p->style()->displayMode() == QStyleSheetItem::DisplayListItem
+	     && p->style() != style() || styleSheetItemsVec().size() == p->styleSheetItemsVec().size() )
+	    ++n;
+	p = p->prev();
+    }
+    ( (QTextParag*)this )->numSubParag = n;
+    return n;
+}
+
+void QTextParag::setFormat( QTextFormat *fm )
+{
+    bool doUpdate = FALSE;
+    if (defFormat && (defFormat != formatCollection()->defaultFormat()))
+       doUpdate = TRUE;
+    defFormat = formatCollection()->format( fm );
+    if ( !doUpdate )
+	return;
+    for ( int i = 0; i < length(); ++i ) {
+	if ( at( i )->format()->styleName() == defFormat->styleName() )
+	    at( i )->format()->updateStyle();
+    }
+}
+
+QTextFormatter *QTextParag::formatter() const
+{
+    if ( hasdoc )
+	return document()->formatter();
+    if ( pseudoDocument()->pFormatter )
+	return pseudoDocument()->pFormatter;
+    return ( ( (QTextParag*)this )->pseudoDocument()->pFormatter = new QTextFormatterBreakWords );
+}
+
+void QTextParag::setTabArray( int *a )
+{
+    delete [] tArray;
+    tArray = a;
+}
+
+void QTextParag::setTabStops( int tw )
+{
+    if ( hasdoc )
+	document()->setTabStops( tw );
+    else
+	tabStopWidth = tw;
+}
+
+QMap<int, QTextParagSelection> &QTextParag::selections() const
+{
+    if ( !mSelections )
+	((QTextParag *)this)->mSelections = new QMap<int, QTextParagSelection>;
+    return *mSelections;
+}
+
+QPtrVector<QStyleSheetItem> &QTextParag::styleSheetItemsVec() const
+{
+    if ( !mStyleSheetItemsVec )
+	((QTextParag *)this)->mStyleSheetItemsVec = new QPtrVector<QStyleSheetItem>;
+    return *mStyleSheetItemsVec;
+}
+
+QPtrList<QTextCustomItem> &QTextParag::floatingItems() const
+{
+    if ( !mFloatingItems )
+	((QTextParag *)this)->mFloatingItems = new QPtrList<QTextCustomItem>;
+    return *mFloatingItems;
+}
+
+QTextStringChar::~QTextStringChar()
+{
+    if ( format() )
+	format()->removeRef();
+    if ( type ) // not Regular
+	delete d.custom;
+}
+
+QTextParagPseudoDocument::QTextParagPseudoDocument():pFormatter(0),commandHistory(0), minw(0),wused(0){}
+QTextParagPseudoDocument::~QTextParagPseudoDocument(){ delete pFormatter; delete commandHistory; }