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-rw-r--r--kompare/komparepart/kompareconnectwidget.cpp285
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diff --git a/kompare/komparepart/kompareconnectwidget.cpp b/kompare/komparepart/kompareconnectwidget.cpp
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+/***************************************************************************
+ kompareconnectwidget.cpp - description
+ -------------------
+ begin : Tue Jun 26 2001
+ copyright : (C) 2001-2003 John Firebaugh
+ (C) 2001-2004 Otto Bruggeman
+ (C) 2004 Jeff Snyder
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * 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"