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tdesdk/kompare/komparepart/kompareconnectwidget.cpp

286 lines
8.6 KiB

/***************************************************************************
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 <tqapplication.h>
#include <tqpainter.h>
#include <tqpixmap.h>
#include <tqstyle.h>
#include <tqtimer.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 ) :
TQSplitterHandle(Qt::Horizontal, (TQSplitter *)parent, name),
m_wid ( left, right, settings, this, name ),
m_label ( "", this ),
m_layout ( this )
{
tqsetSizePolicy ( TQSizePolicy(TQSizePolicy::Fixed, TQSizePolicy::Ignored) );
m_wid.tqsetSizePolicy ( TQSizePolicy(TQSizePolicy::Ignored, TQSizePolicy::Ignored) );
m_label.tqsetSizePolicy ( TQSizePolicy(TQSizePolicy::Ignored, TQSizePolicy::Fixed) );
m_label.setMargin(3);
TQFrame* bottomLine = new TQFrame(this);
bottomLine->setFrameShape(TQFrame::HLine);
bottomLine->setFrameShadow ( TQFrame::Plain );
bottomLine->tqsetSizePolicy ( TQSizePolicy(TQSizePolicy::Ignored, TQSizePolicy::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()
{
}
TQSize KompareConnectWidgetFrame::tqsizeHint() const
{
return TQSize(50, tqstyle().tqpixelMetric( TQStyle::PM_ScrollBarExtent ) );
}
static int kMouseOffset;
void KompareConnectWidgetFrame::mouseMoveEvent( TQMouseEvent *e )
{
if ( !(e->state()&Qt::LeftButton) )
return;
TQCOORD pos = s->pick( parentWidget()->mapFromGlobal(e->globalPos()) )
- kMouseOffset;
((KompareSplitter*)s)->moveSplitter( pos, id() );
}
void KompareConnectWidgetFrame::mousePressEvent( TQMouseEvent *e )
{
if ( e->button() == Qt::LeftButton )
kMouseOffset = s->pick( e->pos() );
TQSplitterHandle::mousePressEvent(e);
}
void KompareConnectWidgetFrame::mouseReleaseEvent( TQMouseEvent *e )
{
if ( !opaque() && e->button() == Qt::LeftButton ) {
TQCOORD pos = s->pick( parentWidget()->mapFromGlobal(e->globalPos()) )
- kMouseOffset;
((KompareSplitter*)s)->moveSplitter( pos, id() );
}
}
KompareConnectWidget::KompareConnectWidget( KompareListView* left, KompareListView* right,
ViewSettings* settings, TQWidget* parent, const char* name )
: TQWidget(parent, name),
m_settings( settings ),
m_leftView( left ),
m_rightView( right ),
m_selectedModel( 0 ),
m_selectedDifference( 0 )
{
// connect( m_settings, TQT_SIGNAL( settingsChanged() ), this, TQT_SLOT( slotDelayedRepaint() ) );
setBackgroundMode( NoBackground );
tqsetSizePolicy( TQSizePolicy( TQSizePolicy::Fixed, TQSizePolicy::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()
{
TQTimer::singleShot( 0, this, TQT_SLOT( tqrepaint() ) );
}
void KompareConnectWidget::slotSetSelection( const Difference* diff )
{
if ( m_selectedDifference == diff )
return;
m_selectedDifference = diff;
slotDelayedRepaint();
}
void KompareConnectWidget::paintEvent( TQPaintEvent* /* e */ )
{
// kdDebug(8106) << "KompareConnectWidget::paintEvent()" << endl;
TQPixmap pixbuf(size());
TQPainter paint(&pixbuf, this);
TQPainter* 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 : TQMIN( firstL, firstR );
int last = lastL < 0 ? lastR : TQMAX( 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 );
TQRect leftRect, rightRect;
for ( int i = first; i <= last; ++diffIt, ++i )
{
Difference* diff = *diffIt;
bool selected = ( diff == m_selectedDifference );
if ( TQApplication::reverseLayout() )
{
leftRect = m_rightView->tqitemRect( i );
rightRect = m_leftView->tqitemRect( i );
}
else
{
leftRect = m_leftView->tqitemRect( i );
rightRect = m_rightView->tqitemRect( 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;
TQPointArray topBezier = makeTopBezier( tl, tr );
TQPointArray bottomBezier = makeBottomBezier( bl, br );
TQColor 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);
}
TQPointArray KompareConnectWidget::makeTopBezier( int tl, int tr )
{
int l = 0;
int r = width();
int o = (int)((double)r*0.4); // 40% of width
TQPointArray 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;
}
}
TQPointArray KompareConnectWidget::makeBottomBezier( int bl, int br )
{
int l = 0;
int r = width();
int o = (int)((double)r*0.4); // 40% of width
TQPointArray 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;
}
}
TQPointArray KompareConnectWidget::makeConnectPoly( const TQPointArray& topBezier, const TQPointArray& bottomBezier )
{
TQPointArray 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"