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-rw-r--r--kdeui/kwordwrap.cpp269
1 files changed, 0 insertions, 269 deletions
diff --git a/kdeui/kwordwrap.cpp b/kdeui/kwordwrap.cpp
deleted file mode 100644
index b7eeaff7c..000000000
--- a/kdeui/kwordwrap.cpp
+++ /dev/null
@@ -1,269 +0,0 @@
-/* This file is part of the KDE libraries
- Copyright (C) 2001 David Faure <david@mandrakesoft.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License version 2 as published by the Free Software Foundation.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
-
-#include "kwordwrap.h"
-#include <kdebug.h>
-#include <kstringhandler.h>
-#include <tqpainter.h>
-
-class KWordWrapPrivate {
-public:
- TQRect m_constrainingRect;
-};
-
-KWordWrap::KWordWrap(const TQRect & r) {
- d = new KWordWrapPrivate;
- d->m_constrainingRect = r;
-}
-
-KWordWrap* KWordWrap::formatText( TQFontMetrics &fm, const TQRect & r, int /*flags*/, const TQString & str, int len )
-{
- KWordWrap* kw = new KWordWrap( r );
- // The wordwrap algorithm
- // The variable names and the global tqshape of the algorithm are inspired
- // from QTextFormatterBreakWords::format().
- //kdDebug() << "KWordWrap::formatText " << str << " r=" << r.x() << "," << r.y() << " " << r.width() << "x" << r.height() << endl;
- int height = fm.height();
- if ( len == -1 )
- kw->m_text = str;
- else
- kw->m_text = str.left( len );
- if ( len == -1 )
- len = str.length();
- int lastBreak = -1;
- int lineWidth = 0;
- int x = 0;
- int y = 0;
- int w = r.width();
- int textwidth = 0;
- bool isBreakable = false;
- bool wasBreakable = false; // value of isBreakable for last char (i-1)
- bool isParens = false; // true if one of ({[
- bool wasParens = false; // value of isParens for last char (i-1)
-
- for ( int i = 0 ; i < len; ++i )
- {
- TQChar c = str[i];
- int ww = fm.charWidth( str, i );
-
- isParens = ( c == '(' || c == '[' || c == '{' );
- // isBreakable is true when we can break _after_ this character.
- isBreakable = ( c.isSpace() || c.isPunct() || c.isSymbol() ) & !isParens;
-
- // Special case for '(', '[' and '{': we want to break before them
- if ( !isBreakable && i < len-1 ) {
- TQChar nextc = str[i+1]; // look at next char
- isBreakable = ( nextc == '(' || nextc == '[' || nextc == '{' );
- }
- // Special case for '/': after normal chars it's breakable (e.g. inside a path),
- // but after another breakable char it's not (e.g. "mounted at /foo")
- // Same thing after a parenthesis (e.g. "dfaure [/fool]")
- if ( c == '/' && (wasBreakable || wasParens) )
- isBreakable = false;
-
- /*kdDebug() << "c='" << TQString(c) << "' i=" << i << "/" << len
- << " x=" << x << " ww=" << ww << " w=" << w
- << " lastBreak=" << lastBreak << " isBreakable=" << isBreakable << endl;*/
- int breakAt = -1;
- if ( x + ww > w && lastBreak != -1 ) // time to break and we know where
- breakAt = lastBreak;
- if ( x + ww > w - 4 && lastBreak == -1 ) // time to break but found nowhere [-> break here]
- breakAt = i;
- if ( i == len - 2 && x + ww + fm.charWidth( str, i+1 ) > w ) // don't leave the last char alone
- breakAt = lastBreak == -1 ? i - 1 : lastBreak;
- if ( c == '\n' ) // Forced break here
- {
- if ( breakAt == -1 && lastBreak != -1) // only break if not already breaking
- {
- breakAt = i - 1;
- lastBreak = -1;
- }
- // remove the line feed from the string
- kw->m_text.remove(i, 1);
- len--;
- }
- if ( breakAt != -1 )
- {
- //kdDebug() << "KWordWrap::formatText breaking after " << breakAt << endl;
- kw->m_breakPositions.append( breakAt );
- int thisLineWidth = lastBreak == -1 ? x + ww : lineWidth;
- kw->m_lineWidths.append( thisLineWidth );
- textwidth = QMAX( textwidth, thisLineWidth );
- x = 0;
- y += height;
- wasBreakable = true;
- wasParens = false;
- if ( lastBreak != -1 )
- {
- // Breakable char was found, restart from there
- i = lastBreak;
- lastBreak = -1;
- continue;
- }
- } else if ( isBreakable )
- {
- lastBreak = i;
- lineWidth = x + ww;
- }
- x += ww;
- wasBreakable = isBreakable;
- wasParens = isParens;
- }
- textwidth = QMAX( textwidth, x );
- kw->m_lineWidths.append( x );
- y += height;
- //kdDebug() << "KWordWrap::formatText boundingRect:" << r.x() << "," << r.y() << " " << textwidth << "x" << y << endl;
- if ( r.height() >= 0 && y > r.height() )
- textwidth = r.width();
- int realY = y;
- if ( r.height() >= 0 )
- {
- while ( realY > r.height() )
- realY -= height;
- realY = QMAX( realY, 0 );
- }
- kw->m_boundingRect.setRect( 0, 0, textwidth, realY );
- return kw;
-}
-
-KWordWrap::~KWordWrap() {
- delete d;
-}
-
-TQString KWordWrap::wrappedString() const
-{
- // We use the calculated break positions to insert '\n' into the string
- TQString ws;
- int start = 0;
- TQValueList<int>::ConstIterator it = m_breakPositions.begin();
- for ( ; it != m_breakPositions.end() ; ++it )
- {
- int end = (*it);
- ws += m_text.mid( start, end - start + 1 ) + '\n';
- start = end + 1;
- }
- ws += m_text.mid( start );
- return ws;
-}
-
-TQString KWordWrap::truncatedString( bool dots ) const
-{
- if ( m_breakPositions.isEmpty() )
- return m_text;
-
- TQString ts = m_text.left( m_breakPositions.first() + 1 );
- if ( dots )
- ts += "...";
- return ts;
-}
-
-static TQColor mixColors(double p1, TQColor c1, TQColor c2) {
- return TQColor(int(c1.red() * p1 + c2.red() * (1.0-p1)),
- int(c1.green() * p1 + c2.green() * (1.0-p1)),
- int(c1.blue() * p1 + c2.blue() * (1.0-p1)));
-}
-
-void KWordWrap::drawFadeoutText(TQPainter *p, int x, int y, int maxW,
- const TQString &t) {
- TQFontMetrics fm = p->fontMetrics();
- TQColor bgColor = p->backgroundColor();
- TQColor textColor = p->pen().color();
-
- if ( ( fm.boundingRect( t ).width() > maxW ) && ( t.length() > 1 ) ) {
- unsigned int tl = 0;
- int w = 0;
- while ( tl < t.length() ) {
- w += fm.charWidth( t, tl );
- if ( w >= maxW )
- break;
- tl++;
- }
-
- if (tl > 3) {
- p->drawText( x, y, t.left( tl - 3 ) );
- x += fm.width( t.left( tl - 3 ) );
- }
- int n = TQMIN( tl, 3);
- for (int i = 0; i < n; i++) {
- p->setPen( mixColors( 0.70 - i * 0.25, textColor, bgColor ) );
- TQString s( t.tqat( tl - n + i ) );
- p->drawText( x, y, s );
- x += fm.width( s );
- }
- }
- else
- p->drawText( x, y, t );
-}
-
-void KWordWrap::drawTruncateText(TQPainter *p, int x, int y, int maxW,
- const TQString &t) {
- TQString tmpText = KStringHandler::rPixelSqueeze( t, p->fontMetrics(), maxW );
- p->drawText( x, y, tmpText, maxW );
-}
-
-void KWordWrap::drawText( TQPainter *painter, int textX, int textY, int flags ) const
-{
- //kdDebug() << "KWordWrap::drawText text=" << wrappedString() << " x=" << textX << " y=" << textY << endl;
- // We use the calculated break positions to draw the text line by line using QPainter
- int start = 0;
- int y = 0;
- TQFontMetrics fm = painter->fontMetrics();
- int height = fm.height(); // line height
- int ascent = fm.ascent();
- int maxwidth = m_boundingRect.width();
- TQValueList<int>::ConstIterator it = m_breakPositions.begin();
- TQValueList<int>::ConstIterator itw = m_lineWidths.begin();
- for ( ; it != m_breakPositions.end() ; ++it, ++itw )
- {
- // if this is the last line, leave the loop
- if ( (d->m_constrainingRect.height() >= 0) &&
- ((y + 2 * height) > d->m_constrainingRect.height()) )
- break;
- int end = (*it);
- int x = textX;
- if ( flags & Qt::AlignHCenter )
- x += ( maxwidth - *itw ) / 2;
- else if ( flags & Qt::AlignRight )
- x += maxwidth - *itw;
- painter->drawText( x, textY + y + ascent, m_text.mid( start, end - start + 1 ) );
- y += height;
- start = end + 1;
- }
- // Draw the last line
- int x = textX;
- if ( flags & Qt::AlignHCenter )
- x += ( maxwidth - *itw ) / 2;
- else if ( flags & Qt::AlignRight )
- x += maxwidth - *itw;
- if ( (d->m_constrainingRect.height() < 0) ||
- ((y + height) <= d->m_constrainingRect.height()) ) {
- if ( it == m_breakPositions.end() )
- painter->drawText( x, textY + y + ascent, m_text.mid( start ) );
- else if (flags & FadeOut)
- drawFadeoutText( painter, textX, textY + y + ascent,
- d->m_constrainingRect.width(),
- m_text.mid( start ) );
- else if (flags & Truncate)
- drawTruncateText( painter, textX, textY + y + ascent,
- d->m_constrainingRect.width(),
- m_text.mid( start ) );
- else
- painter->drawText( x, textY + y + ascent,
- m_text.mid( start, (*it) - start + 1 ) );
- }
-}
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