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713 lines
18 KiB
713 lines
18 KiB
/***************************************************************************
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komparesplitter.cpp - description
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-------------------
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begin : Wed Jan 14 2004
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copyright : (C) 2004 by Jeff Snyder
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email : jeff@caffeinated.me.uk
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****************************************************************************/
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/***************************************************************************
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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***************************************************************************/
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#include "komparesplitter.h"
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#include <tqstyle.h>
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#include <tqstring.h>
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#include <tqtimer.h>
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#include <kdebug.h>
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#include <kapplication.h>
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#include <kglobalsettings.h>
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#include "diffmodel.h"
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#include "difference.h"
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#include "viewsettings.h"
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#include "kompare_part.h"
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#include "komparelistview.h"
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#include "kompareconnectwidget.h"
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using namespace Diff2;
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KompareSplitter::KompareSplitter( ViewSettings *settings, TQWidget * tqparent,
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const char *name) :
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KQSplitter(Qt::Horizontal, tqparent, name ),
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m_settings( settings )
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{
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TQFrame *scrollFrame = new TQFrame( tqparent, "scrollFrame" );
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reparent( scrollFrame, *(new TQPoint()), false );
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// Set up the scrollFrame
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scrollFrame->setFrameStyle( TQFrame::NoFrame | TQFrame::Plain );
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scrollFrame->setLineWidth(scrollFrame->tqstyle().tqpixelMetric(TQStyle::PM_DefaultFrameWidth));
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TQGridLayout *pairtqlayout = new TQGridLayout(scrollFrame, 2, 2, 0);
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m_vScroll = new TQScrollBar( Qt::Vertical, scrollFrame );
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pairtqlayout->addWidget( m_vScroll, 0, 1 );
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m_hScroll = new TQScrollBar( Qt::Horizontal, scrollFrame );
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pairtqlayout->addWidget( m_hScroll, 1, 0 );
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new KompareListViewFrame(true, m_settings, this, "source");
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new KompareListViewFrame(false, m_settings, this, "destination");
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pairtqlayout->addWidget( this, 0, 0 );
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// set up our looks
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setFrameStyle( TQFrame::StyledPanel | TQFrame::Sunken );
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setLineWidth( tqstyle().tqpixelMetric( TQStyle::PM_DefaultFrameWidth ) );
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setHandleWidth(50);
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setChildrenCollapsible( false );
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setFrameStyle( TQFrame::NoFrame );
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tqsetSizePolicy( TQSizePolicy (TQSizePolicy::Ignored, TQSizePolicy::Ignored ));
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setOpaqueResize( true );
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setFocusPolicy( TQ_WheelFocus );
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connect( this, TQT_SIGNAL(configChanged()), TQT_SLOT(slotConfigChanged()) );
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connect( this, TQT_SIGNAL(configChanged()), TQT_SLOT(slotDelayedRepaintHandles()) );
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connect( this, TQT_SIGNAL(configChanged()), TQT_SLOT(slotDelayedUpdateScrollBars()) );
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// scrolling
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connect( m_vScroll, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(scrollToId(int)) );
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connect( m_vScroll, TQT_SIGNAL(sliderMoved(int)), TQT_SLOT(scrollToId(int)) );
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connect( m_hScroll, TQT_SIGNAL(valueChanged(int)), TQT_SIGNAL(setXOffset(int)) );
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connect( m_hScroll, TQT_SIGNAL(sliderMoved(int)), TQT_SIGNAL(setXOffset(int)) );
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m_scrollTimer=new TQTimer();
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restartTimer = false;
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connect (m_scrollTimer, TQT_SIGNAL(timeout()), TQT_SLOT(timerTimeout()) );
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// we need to receive childEvents now so that d->list is ready for when
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// slotSetSelection(...) arrives
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kapp->sendPostedEvents(this, TQEvent::ChildInserted);
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// init stuff
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slotUpdateScrollBars();
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}
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KompareSplitter::~KompareSplitter(){}
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/*
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Inserts the widget \a w at the end (or at the beginning if \a
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prepend is TRUE) of the splitter's list of widgets.
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It is the responsibility of the caller to make sure that \a w is
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not already in the splitter and to call recalcId() if needed. (If
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\a prepend is TRUE, then recalcId() is very probably needed.)
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*/
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KQSplitterLayoutStruct *KompareSplitter::addWidget( KompareListViewFrame *w, bool prepend )
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{
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/* This function is *not* a good place to make connections to and from
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* the KompareListView. Make them in the KompareListViewFrame constructor
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* instad - that way the connections get made upon creation, not upon the
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* next processing of the event queue. */
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KQSplitterLayoutStruct *s;
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KompareConnectWidgetFrame *newHandle = 0;
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if ( d->list.count() > 0 ) {
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s = new KQSplitterLayoutStruct;
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s->resizeMode = KeepSize;
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TQString tmp = "qt_splithandle_";
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tmp += w->name();
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KompareListView *lw =
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((KompareListViewFrame*)(prepend?w:d->list.last()->wid))->view();
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KompareListView *rw =
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((KompareListViewFrame*)(prepend?d->list.first()->wid:w))->view();
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newHandle = new KompareConnectWidgetFrame(lw, rw, m_settings, this, tmp.latin1());
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s->wid = newHandle;
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newHandle->setId( d->list.count() );
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s->isHandle = TRUE;
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s->sizer = pick( newHandle->tqsizeHint() );
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if ( prepend )
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d->list.prepend( s );
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else
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d->list.append( s );
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}
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s = new KQSplitterLayoutStruct;
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s->resizeMode = DefaultResizeMode;
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s->wid = w;
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s->isHandle = FALSE;
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if ( prepend ) d->list.prepend( s );
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else d->list.append( s );
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if ( newHandle && isVisible() )
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newHandle->show(); // will trigger sending of post events
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return s;
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}
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/*!
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Tells the splitter that the child widget described by \a c has
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been inserted or removed.
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*/
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void KompareSplitter::childEvent( TQChildEvent *c )
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{
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if ( c->type() == TQEvent::ChildInserted ) {
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if ( !c->child()->isWidgetType() )
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return;
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if ( ((TQWidget*)c->child())->testWFlags( WType_TopLevel ) )
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return;
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KQSplitterLayoutStruct *s = d->list.first();
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while ( s ) {
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if ( s->wid == c->child() )
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return;
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s = d->list.next();
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}
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addWidget( (KompareListViewFrame*)c->child() );
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recalc( isVisible() );
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} else if ( c->type() == TQEvent::ChildRemoved ) {
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KQSplitterLayoutStruct *prev = 0;
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if ( d->list.count() > 1 )
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prev = d->list.at( 1 ); // yes, this is correct
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KQSplitterLayoutStruct *curr = d->list.first();
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while ( curr ) {
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if ( curr->wid == c->child() ) {
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d->list.removeRef( curr );
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if ( prev && prev->isHandle ) {
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TQWidget *w = prev->wid;
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d->list.removeRef( prev );
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delete w; // will call childEvent()
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}
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recalcId();
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doResize();
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return;
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}
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prev = curr;
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curr = d->list.next();
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}
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}
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}
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// This is from a private qt header (kernel/qtqlayoutengine_p.h). sorry.
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TQSize qSmartMinSize( TQWidget *w );
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static TQPoint toggle( TQWidget *w, TQPoint pos )
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{
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TQSize minS = qSmartMinSize( w );
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return -pos - TQPoint( minS.width(), minS.height() );
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}
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static bool isCollapsed( TQWidget *w )
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{
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return w->x() < 0 || w->y() < 0;
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}
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static TQPoint topLeft( TQWidget *w )
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{
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if ( isCollapsed(w) ) {
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return toggle( w, w->pos() );
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} else {
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return w->pos();
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}
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}
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static TQPoint bottomRight( TQWidget *w )
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{
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if ( isCollapsed(w) ) {
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return toggle( w, w->pos() ) - TQPoint( 1, 1 );
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} else {
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return w->tqgeometry().bottomRight();
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}
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}
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void KompareSplitter::moveSplitter( TQCOORD p, int id )
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{
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KQSplitterLayoutStruct *s = d->list.at( id );
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int farMin;
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int min;
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int max;
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int farMax;
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p = adjustPos( p, id, &farMin, &min, &max, &farMax );
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int oldP = pick( s->wid->pos() );
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int* poss = new int[d->list.count()];
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int* ws = new int[d->list.count()];
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TQWidget *w = 0;
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bool upLeft;
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if ( TQApplication::reverseLayout() && orient ==Qt::Horizontal ) {
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int q = p + s->wid->width();
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doMove( FALSE, q, id - 1, -1, (p > max), poss, ws );
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doMove( TRUE, q, id, -1, (p < min), poss, ws );
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upLeft = (q > oldP);
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} else {
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doMove( FALSE, p, id, +1, (p > max), poss, ws );
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doMove( TRUE, p, id - 1, +1, (p < min), poss, ws );
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upLeft = (p < oldP);
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}
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if ( upLeft ) {
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int count = d->list.count();
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for ( int id = 0; id < count; ++id ) {
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w = d->list.at( id )->wid;
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if( !w->isHidden() )
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setGeo( w, poss[id], ws[id], TRUE );
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}
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} else {
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for ( int id = d->list.count() - 1; id >= 0; --id ) {
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w = d->list.at( id )->wid;
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if( !w->isHidden() )
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setGeo( w, poss[id], ws[id], TRUE );
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}
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}
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storeSizes();
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}
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void KompareSplitter::doMove( bool backwards, int pos, int id, int delta,
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bool mayCollapse, int* positions, int* widths )
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{
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KQSplitterLayoutStruct *s;
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TQWidget *w;
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for ( ; id >= 0 && id < (int)d->list.count();
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id = backwards ? id - delta : id + delta ) {
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s = d->list.at( id );
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w = s->wid;
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if ( w->isHidden() ) {
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mayCollapse = TRUE;
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} else {
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if ( s->isHandle ) {
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int dd = s->getSizer( orient );
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int nextPos = backwards ? pos - dd : pos + dd;
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positions[id] = pos;
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widths[id] = dd;
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pos = nextPos;
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} else {
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int dd = backwards ? pos - pick( topLeft(w) )
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: pick( bottomRight(w) ) - pos + 1;
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if ( dd > 0 || (!isCollapsed(w) && !mayCollapse) ) {
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dd = TQMAX( pick(qSmartMinSize(w)),
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TQMIN(dd, pick(w->tqmaximumSize())) );
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} else {
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dd = 0;
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}
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positions[id] = backwards ? pos - dd : pos;
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widths[id] = dd;
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pos = backwards ? pos - dd : pos + dd;
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mayCollapse = TRUE;
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}
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}
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}
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}
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void KompareSplitter::slotSetSelection( const DiffModel* model, const Difference* diff )
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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{
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if ( curr->isHandle )
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((KompareConnectWidgetFrame*)
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curr->wid)->wid()->slotSetSelection( model, diff );
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else
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{
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((KompareListViewFrame*)
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curr->wid)->view()->slotSetSelection( model, diff );
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((KompareListViewFrame*)
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curr->wid)->slotSetModel( model );
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}
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}
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slotDelayedRepaintHandles();
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slotDelayedUpdateScrollBars();
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}
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void KompareSplitter::slotSetSelection( const Difference* diff )
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( curr->isHandle )
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((KompareConnectWidgetFrame*)
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curr->wid)->wid()->slotSetSelection( diff );
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else
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((KompareListViewFrame*)
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curr->wid)->view()->slotSetSelection( diff );
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slotDelayedRepaintHandles();
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slotDelayedUpdateScrollBars();
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}
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void KompareSplitter::slotApplyDifference( bool apply )
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( !curr->isHandle )
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((KompareListViewFrame*)
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curr->wid)->view()->slotApplyDifference( apply );
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slotDelayedRepaintHandles();
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}
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void KompareSplitter::slotApplyAllDifferences( bool apply )
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( !curr->isHandle )
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((KompareListViewFrame*)
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curr->wid)->view()->slotApplyAllDifferences( apply );
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slotDelayedRepaintHandles();
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scrollToId( scrollTo ); // FIXME!
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}
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void KompareSplitter::slotApplyDifference( const Difference* diff, bool apply )
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( !curr->isHandle )
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((KompareListViewFrame*)
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curr->wid)->view()->slotApplyDifference( diff, apply );
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slotDelayedRepaintHandles();
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}
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void KompareSplitter::slotDifferenceClicked( const Difference* diff )
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( !curr->isHandle )
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((KompareListViewFrame*)
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curr->wid)->view()->setSelectedDifference( diff, false );
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emit selectionChanged( diff );
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}
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void KompareSplitter::slotConfigChanged()
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() ) {
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if ( !curr->isHandle )
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{
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((KompareListViewFrame*)
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curr->wid)->view()->setSpaces( m_settings->m_tabToNumberOfSpaces );
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((KompareListViewFrame*)
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curr->wid)->view()->setFont( m_settings->m_font );
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((KompareListViewFrame*)
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curr->wid)->view()->update();
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}
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}
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}
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void KompareSplitter::slotDelayedRepaintHandles()
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( curr->isHandle )
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((KompareConnectWidgetFrame*)curr->wid)->wid()->slotDelayedRepaint();
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}
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void KompareSplitter::repaintHandles()
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{
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KQSplitterLayoutStruct *curr;
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( curr->isHandle )
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((KompareConnectWidgetFrame*)curr->wid)->wid()->tqrepaint();
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}
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// Scrolling stuff
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/*
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* limit updating to once every 50 msec with a qtimer
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* FIXME: i'm a nasty hack
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*/
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void KompareSplitter::wheelEvent( TQWheelEvent* e )
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{
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// scroll lines...
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if ( e->orientation() == Qt::Vertical )
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{
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if ( e->state() & TQt::ControlButton )
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if ( e->delta() < 0 ) // scroll down one page
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m_vScroll->addPage();
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else // scroll up one page
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m_vScroll->subtractPage();
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else
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if ( e->delta() < 0 ) // scroll down
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m_vScroll->addLine();
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else // scroll up
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m_vScroll->subtractLine();
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}
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else
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{
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if ( e->state() & TQt::ControlButton )
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if ( e->delta() < 0 ) // scroll right one page
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m_hScroll->addPage();
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else // scroll left one page
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m_hScroll->subtractPage();
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else
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if ( e->delta() < 0 ) // scroll to the right
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m_hScroll->addLine();
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else // scroll to the left
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m_hScroll->subtractLine();
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}
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e->accept();
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repaintHandles();
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}
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void KompareSplitter::keyPressEvent( TQKeyEvent* e )
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{
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//keyboard scrolling
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switch ( e->key() ) {
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case Key_Right:
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case Key_L:
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m_hScroll->addLine();
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break;
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case Key_Left:
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case Key_H:
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m_hScroll->subtractLine();
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break;
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case Key_Up:
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case Key_K:
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m_vScroll->subtractLine();
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break;
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case Key_Down:
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case Key_J:
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m_vScroll->addLine();
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break;
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case Key_PageDown:
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m_vScroll->addPage();
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break;
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case Key_PageUp:
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m_vScroll->subtractPage();
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break;
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}
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e->accept();
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repaintHandles();
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}
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void KompareSplitter::timerTimeout()
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{
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if ( restartTimer )
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restartTimer = false;
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else
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m_scrollTimer->stop();
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slotDelayedRepaintHandles();
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emit scrollViewsToId( scrollTo );
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}
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void KompareSplitter::scrollToId( int id )
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{
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scrollTo = id;
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if( restartTimer )
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return;
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if( m_scrollTimer->isActive() )
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{
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restartTimer = true;
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}
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else
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{
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emit scrollViewsToId( id );
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slotDelayedRepaintHandles();
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m_scrollTimer->start(30, false);
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}
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}
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void KompareSplitter::slotDelayedUpdateScrollBars()
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{
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TQTimer::singleShot( 0, this, TQT_SLOT( slotUpdateScrollBars() ) );
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}
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void KompareSplitter::slotUpdateScrollBars()
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{
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int m_scrollDistance = m_settings->m_scrollNoOfLines * lineSpacing();
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int m_pageSize = pageSize();
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|
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if( needVScrollBar() )
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{
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m_vScroll->show();
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|
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m_vScroll->blockSignals( true );
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m_vScroll->setRange( minVScrollId(),
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maxVScrollId() );
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m_vScroll->setValue( scrollId() );
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m_vScroll->setSteps( m_scrollDistance, m_pageSize );
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m_vScroll->blockSignals( false );
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}
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else
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{
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m_vScroll->hide();
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}
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|
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if( needHScrollBar() )
|
|
{
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m_hScroll->show();
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m_hScroll->blockSignals( true );
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m_hScroll->setRange( 0, maxHScrollId() );
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m_hScroll->setValue( maxContentsX() );
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m_hScroll->setSteps( 10, minVisibleWidth() - 10 );
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m_hScroll->blockSignals( false );
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}
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else
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{
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m_hScroll->hide();
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}
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}
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|
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void KompareSplitter::slotDelayedUpdateVScrollValue()
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{
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TQTimer::singleShot( 0, this, TQT_SLOT( slotUpdateVScrollValue() ) );
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}
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void KompareSplitter::slotUpdateVScrollValue()
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|
{
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m_vScroll->setValue( scrollId() );
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}
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|
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/* FIXME: this should return the scrollId() from the listview containing the
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* /base/ of the diff. but there's bigger issues with that atm.
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|
*/
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|
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int KompareSplitter::scrollId()
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|
{
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KQSplitterLayoutStruct *curr = d->list.first();
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for ( curr = d->list.first(); curr; curr = d->list.next() )
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if ( !curr->isHandle )
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return ((KompareListViewFrame*) curr->wid)->view()->scrollId();
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return minVScrollId();
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|
}
|
|
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|
int KompareSplitter::lineSpacing()
|
|
{
|
|
KQSplitterLayoutStruct *curr = d->list.first();
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|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
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if ( !curr->isHandle )
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return ((KompareListViewFrame*)
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curr->wid)->view()->fontMetrics().lineSpacing();
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|
return 1;
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|
}
|
|
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|
int KompareSplitter::pageSize()
|
|
{
|
|
KQSplitterLayoutStruct *curr;
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|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if ( !curr->isHandle )
|
|
{
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|
KompareListView *view = ((KompareListViewFrame*) curr->wid)->view();
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|
return view->visibleHeight() - TQStyle::PM_ScrollBarExtent;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
bool KompareSplitter::needVScrollBar()
|
|
{
|
|
KQSplitterLayoutStruct *curr;
|
|
int pagesize = pageSize();
|
|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if( !curr->isHandle )
|
|
{
|
|
KompareListView *view = ((KompareListViewFrame*) curr->wid)->view();
|
|
if( view ->contentsHeight() > pagesize)
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int KompareSplitter::minVScrollId()
|
|
{
|
|
|
|
KQSplitterLayoutStruct *curr;
|
|
int min = -1;
|
|
int mSId;
|
|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if(!curr->isHandle) {
|
|
KompareListView* view = ((KompareListViewFrame*)curr->wid)->view();
|
|
mSId = view->minScrollId();
|
|
if (mSId < min || min == -1) min = mSId;
|
|
}
|
|
}
|
|
return ( min == -1 ) ? 0 : min;
|
|
}
|
|
|
|
int KompareSplitter::maxVScrollId()
|
|
{
|
|
KQSplitterLayoutStruct *curr;
|
|
int max = 0;
|
|
int mSId;
|
|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if ( !curr->isHandle )
|
|
{
|
|
mSId = ((KompareListViewFrame*)curr->wid)->view()->maxScrollId();
|
|
if ( mSId > max )
|
|
max = mSId;
|
|
}
|
|
}
|
|
return max;
|
|
}
|
|
|
|
bool KompareSplitter::needHScrollBar()
|
|
{
|
|
KQSplitterLayoutStruct *curr;
|
|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if( !curr->isHandle )
|
|
{
|
|
KompareListView *view = ((KompareListViewFrame*) curr->wid)->view();
|
|
if ( view->contentsWidth() > view->visibleWidth() )
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int KompareSplitter::maxHScrollId()
|
|
{
|
|
KQSplitterLayoutStruct *curr;
|
|
int max = 0;
|
|
int mHSId;
|
|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if( !curr->isHandle )
|
|
{
|
|
KompareListView *view = ((KompareListViewFrame*) curr->wid)->view();
|
|
mHSId = view->contentsWidth() - view->visibleWidth();
|
|
if ( mHSId > max )
|
|
max = mHSId;
|
|
}
|
|
}
|
|
return max;
|
|
}
|
|
|
|
int KompareSplitter::maxContentsX()
|
|
{
|
|
KQSplitterLayoutStruct *curr;
|
|
int max = 0;
|
|
int mCX;
|
|
for ( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if ( !curr->isHandle )
|
|
{
|
|
mCX = ((KompareListViewFrame*) curr->wid)->view()->contentsX();
|
|
if ( mCX > max )
|
|
max = mCX;
|
|
}
|
|
}
|
|
return max;
|
|
}
|
|
|
|
int KompareSplitter::minVisibleWidth()
|
|
{
|
|
// Why the hell do we want to know this?
|
|
// ah yes, its because we use it to set the "page size" for horiz. scrolling.
|
|
// despite the fact that *noone* has a pgright and pgleft key :P
|
|
// But we do have mousewheels with horizontal scrolling functionality,
|
|
// pressing shift and scrolling then goes left and right one page at the time
|
|
KQSplitterLayoutStruct *curr;
|
|
int min = -1;
|
|
int vW;
|
|
for( curr = d->list.first(); curr; curr = d->list.next() )
|
|
{
|
|
if ( !curr->isHandle ) {
|
|
vW = ((KompareListViewFrame*)curr->wid)->view()->visibleWidth();
|
|
if ( vW < min || min == -1 )
|
|
min = vW;
|
|
}
|
|
}
|
|
return ( min == -1 ) ? 0 : min;
|
|
}
|
|
|
|
#include "komparesplitter.moc"
|