diff options
Diffstat (limited to 'kompare/komparepart/kompareconnectwidget.cpp')
| -rw-r--r-- | kompare/komparepart/kompareconnectwidget.cpp | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/kompare/komparepart/kompareconnectwidget.cpp b/kompare/komparepart/kompareconnectwidget.cpp new file mode 100644 index 00000000..eed8e99c --- /dev/null +++ b/kompare/komparepart/kompareconnectwidget.cpp @@ -0,0 +1,285 @@ +/*************************************************************************** + kompareconnectwidget.cpp - description + ------------------- + begin : Tue Jun 26 2001 + copyright : (C) 2001-2003 John Firebaugh + (C) 2001-2004 Otto Bruggeman + (C) 2004 Jeff Snyder + email : jfirebaugh@kde.org + otto.bruggeman@home.nl + jeff@caffeinated.me.uk + ***************************************************************************/ + +/*************************************************************************** + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#include <qapplication.h> +#include <qpainter.h> +#include <qpixmap.h> +#include <qstyle.h> +#include <qtimer.h> + +#include <kdebug.h> + +#include "viewsettings.h" +#include "komparemodellist.h" +#include "komparelistview.h" +#include "komparesplitter.h" + +#include "kompareconnectwidget.h" + +using namespace Diff2; + +KompareConnectWidgetFrame::KompareConnectWidgetFrame( KompareListView* left, + KompareListView* right, + ViewSettings* settings, + KompareSplitter* parent, + const char* name ) : + QSplitterHandle(Horizontal, (QSplitter *)parent, name), + m_wid ( left, right, settings, this, name ), + m_label ( "", this ), + m_layout ( this ) +{ + setSizePolicy ( QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored) ); + m_wid.setSizePolicy ( QSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored) ); + m_label.setSizePolicy ( QSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed) ); + m_label.setMargin(3); + QFrame* bottomLine = new QFrame(this); + bottomLine->setFrameShape(QFrame::HLine); + bottomLine->setFrameShadow ( QFrame::Plain ); + bottomLine->setSizePolicy ( QSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed) ); + bottomLine->setFixedHeight(1); + m_layout.setSpacing(0); + m_layout.setMargin(0); + m_layout.addWidget(&m_label); + m_layout.addWidget(bottomLine); + m_layout.addWidget(&m_wid); +} + +KompareConnectWidgetFrame::~KompareConnectWidgetFrame() +{ +} + +QSize KompareConnectWidgetFrame::sizeHint() const +{ + return QSize(50, style().pixelMetric( QStyle::PM_ScrollBarExtent ) ); +} + +static int kMouseOffset; + +void KompareConnectWidgetFrame::mouseMoveEvent( QMouseEvent *e ) +{ + if ( !(e->state()&LeftButton) ) + return; + + QCOORD pos = s->pick( parentWidget()->mapFromGlobal(e->globalPos()) ) + - kMouseOffset; + + ((KompareSplitter*)s)->moveSplitter( pos, id() ); +} + +void KompareConnectWidgetFrame::mousePressEvent( QMouseEvent *e ) +{ + if ( e->button() == LeftButton ) + kMouseOffset = s->pick( e->pos() ); + QSplitterHandle::mousePressEvent(e); +} + +void KompareConnectWidgetFrame::mouseReleaseEvent( QMouseEvent *e ) +{ + if ( !opaque() && e->button() == LeftButton ) { + QCOORD pos = s->pick( parentWidget()->mapFromGlobal(e->globalPos()) ) + - kMouseOffset; + ((KompareSplitter*)s)->moveSplitter( pos, id() ); + } +} + +KompareConnectWidget::KompareConnectWidget( KompareListView* left, KompareListView* right, + ViewSettings* settings, QWidget* parent, const char* name ) + : QWidget(parent, name), + m_settings( settings ), + m_leftView( left ), + m_rightView( right ), + m_selectedModel( 0 ), + m_selectedDifference( 0 ) +{ +// connect( m_settings, SIGNAL( settingsChanged() ), this, SLOT( slotDelayedRepaint() ) ); + setBackgroundMode( NoBackground ); + setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Minimum ) ); + setFocusProxy( parent->parentWidget() ); +} + +KompareConnectWidget::~KompareConnectWidget() +{ +} + +void KompareConnectWidget::slotSetSelection( const DiffModel* model, const Difference* diff ) +{ + if( m_selectedModel == model && m_selectedDifference == diff ) + return; + + if ( m_selectedModel == model && m_selectedDifference != diff ) + { + m_selectedDifference = diff; + slotDelayedRepaint(); + return; + } + + m_selectedModel = model; + m_selectedDifference = diff; + + slotDelayedRepaint(); +} + +void KompareConnectWidget::slotDelayedRepaint() +{ + QTimer::singleShot( 0, this, SLOT( repaint() ) ); +} + +void KompareConnectWidget::slotSetSelection( const Difference* diff ) +{ + if ( m_selectedDifference == diff ) + return; + + m_selectedDifference = diff; + + slotDelayedRepaint(); +} + +void KompareConnectWidget::paintEvent( QPaintEvent* /* e */ ) +{ +// kdDebug(8106) << "KompareConnectWidget::paintEvent()" << endl; + + QPixmap pixbuf(size()); + QPainter paint(&pixbuf, this); + QPainter* p = &paint; + + p->fillRect( 0, 0, pixbuf.width(), pixbuf.height(), white.dark(110) ); + + if ( m_selectedModel ) + { + int firstL = m_leftView->firstVisibleDifference(); + int firstR = m_rightView->firstVisibleDifference(); + int lastL = m_leftView->lastVisibleDifference(); + int lastR = m_rightView->lastVisibleDifference(); + + int first = firstL < 0 ? firstR : QMIN( firstL, firstR ); + int last = lastL < 0 ? lastR : QMAX( lastL, lastR ); + +// kdDebug(8106) << " left: " << firstL << " - " << lastL << endl; +// kdDebug(8106) << " right: " << firstR << " - " << lastR << endl; +// kdDebug(8106) << " drawing: " << first << " - " << last << endl; + if ( first >= 0 && last >= 0 && first <= last ) + { + const DifferenceList* differences = const_cast<DiffModel*>(m_selectedModel)->differences(); + DifferenceListConstIterator diffIt = differences->at( first ); + DifferenceListConstIterator dEnd = differences->at( last + 1 ); + + QRect leftRect, rightRect; + + for ( int i = first; i <= last; ++diffIt, ++i ) + { + Difference* diff = *diffIt; + bool selected = ( diff == m_selectedDifference ); + + if ( QApplication::reverseLayout() ) + { + leftRect = m_rightView->itemRect( i ); + rightRect = m_leftView->itemRect( i ); + } + else + { + leftRect = m_leftView->itemRect( i ); + rightRect = m_rightView->itemRect( i ); + } + + int tl = leftRect.top(); + int tr = rightRect.top(); + int bl = leftRect.bottom(); + int br = rightRect.bottom(); + + // Bah, stupid 16-bit signed shorts in that crappy X stuff... + tl = tl >= -32768 ? tl : -32768; + tr = tr >= -32768 ? tr : -32768; + bl = bl <= 32767 ? bl : 32767; + br = br <= 32767 ? br : 32767; + +// kdDebug(8106) << "drawing: " << tl << " " << tr << " " << bl << " " << br << endl; + QPointArray topBezier = makeTopBezier( tl, tr ); + QPointArray bottomBezier = makeBottomBezier( bl, br ); + + QColor color = m_settings->colorForDifferenceType( diff->type(), selected, diff->applied() ).dark(110); + p->setPen( color ); + p->setBrush( color ); + p->drawPolygon ( makeConnectPoly( topBezier, bottomBezier ) ); + + if ( selected ) + { + p->setPen( color.dark(135) ); + p->drawPolyline( topBezier ); + p->drawPolyline( bottomBezier ); + } + } + } + } + + p->flush(); + bitBlt(this, 0, 0, &pixbuf); +} + +QPointArray KompareConnectWidget::makeTopBezier( int tl, int tr ) +{ + int l = 0; + int r = width(); + int o = (int)((double)r*0.4); // 40% of width + QPointArray controlPoints; + + if ( tl != tr ) + { + controlPoints.setPoints( 4, l,tl, o,tl, r-o,tr, r,tr ); + return controlPoints.cubicBezier(); + } + else + { + controlPoints.setPoints( 2, l,tl, r,tr ); + return controlPoints; + } +} + +QPointArray KompareConnectWidget::makeBottomBezier( int bl, int br ) +{ + int l = 0; + int r = width(); + int o = (int)((double)r*0.4); // 40% of width + QPointArray controlPoints; + + if ( bl != br ) + { + controlPoints.setPoints( 4, r,br, r-o,br, o,bl, l,bl ); + return controlPoints.cubicBezier(); + } + else + { + controlPoints.setPoints( 2, r,br, l,bl ); + return controlPoints; + } +} + +QPointArray KompareConnectWidget::makeConnectPoly( const QPointArray& topBezier, const QPointArray& bottomBezier ) +{ + QPointArray poly( topBezier.size() + bottomBezier.size() ); + for( uint i = 0; i < topBezier.size(); i++ ) + poly.setPoint( i, topBezier.point( i ) ); + for( uint i = 0; i < bottomBezier.size(); i++ ) + poly.setPoint( i + topBezier.size(), bottomBezier.point( i ) ); + + return poly; +} + +#include "kompareconnectwidget.moc" |