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332 lines
8.3 KiB
332 lines
8.3 KiB
/***************************************************************************
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* Copyright (C) 2001 by Harald Fernengel *
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* harry@tdevelop.org *
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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 <tqlayout.h>
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#include <tqtextedit.h>
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#include <tqpopupmenu.h>
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#include <tqcursor.h>
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#include <tqfile.h>
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#include <tdeconfig.h>
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#include <tdeapplication.h>
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#include <tdelocale.h>
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#include <kservice.h>
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#include <tdetempfile.h>
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#include <tdepopupmenu.h>
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#include <kiconloader.h>
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#include <tdefiledialog.h>
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#include <tdemessagebox.h>
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#include <tdeparts/componentfactory.h>
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#include <tdeparts/part.h>
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#include <tdeio/jobclasses.h>
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#include <tdeio/job.h>
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#include "diffwidget.h"
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// yup, magic value for the popupmenu-id
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static const int POPUP_BASE = 130977;
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TQStringList KDiffTextEdit::extParts;
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TQStringList KDiffTextEdit::extPartsTranslated;
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KDiffTextEdit::KDiffTextEdit( TQWidget* parent, const char* name ): TQTextEdit( parent, name )
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{
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TDEConfig* config = kapp->config();
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config->setGroup( "Diff" );
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_highlight = config->readBoolEntry( "Highlight", true );
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searchExtParts();
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}
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KDiffTextEdit::~KDiffTextEdit()
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{
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TDEConfig* config = kapp->config();
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config->setGroup( "Diff" );
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config->writeEntry( "Highlight", _highlight );
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}
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TQPopupMenu* KDiffTextEdit::createPopupMenu()
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{
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return createPopupMenu( TQPoint() );
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}
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TQPopupMenu* KDiffTextEdit::createPopupMenu( const TQPoint& p )
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{
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TQPopupMenu* popup = TQTextEdit::createPopupMenu( p );
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if ( !popup )
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popup = new TQPopupMenu( this );
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int i = 0;
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for ( TQStringList::Iterator it = extPartsTranslated.begin(); it != extPartsTranslated.end(); ++it ) {
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popup->insertItem( i18n( "Show in %1" ).arg( *it ), i + POPUP_BASE, i );
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i++;
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}
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if ( !extPartsTranslated.isEmpty() )
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popup->insertSeparator( i );
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connect( popup, TQT_SIGNAL(activated(int)), this, TQT_SLOT(popupActivated(int)) );
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popup->insertItem( SmallIconSet( "filesaveas" ), i18n( "&Save As..." ), this, TQT_SLOT(saveAs()), CTRL + Key_S, POPUP_BASE - 2, 0 );
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popup->setItemEnabled( POPUP_BASE - 2, length() > 0 );
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popup->insertSeparator( 1 );
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popup->insertItem( i18n( "Highlight Syntax" ), this, TQT_SLOT(toggleSyntaxHighlight()), 0, POPUP_BASE - 1, 2 );
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popup->setItemChecked( POPUP_BASE - 1, _highlight );
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popup->insertSeparator( 3 );
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return popup;
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}
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void KDiffTextEdit::saveAs()
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{
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TQString fName = KFileDialog::getSaveFileName();
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if ( fName.isEmpty() )
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return;
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TQFile f( fName );
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if ( f.open( IO_WriteOnly ) ) {
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TQTextStream stream( &f );
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int pCount = paragraphs();
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for ( int i = 0; i < pCount; ++i )
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stream << text( i ) << "\n";
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f.close();
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} else {
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KMessageBox::sorry( this, i18n("Unable to open file."), i18n("Diff Frontend") );
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}
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}
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void KDiffTextEdit::toggleSyntaxHighlight()
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{
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_highlight = !_highlight;
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if ( _highlight )
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applySyntaxHighlight();
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else
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clearSyntaxHighlight();
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}
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void KDiffTextEdit::applySyntaxHighlight()
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{
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// the diff has been loaded so we apply a simple highlighting
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static TQColor cAdded( 190, 190, 237);
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static TQColor cRemoved( 190, 237, 190 );
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if ( !_highlight )
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return;
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int paragCount = paragraphs();
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for ( int i = 0; i < paragCount; ++i ) {
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TQString txt = text( i );
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if ( txt.length() > 0 ) {
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if ( txt.startsWith( "+" ) || txt.startsWith( ">" ) ) {
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setParagraphBackgroundColor( i, cAdded );
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} else if ( txt.startsWith( "-" ) || txt.startsWith( "<" ) ) {
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setParagraphBackgroundColor( i, cRemoved );
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}
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}
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}
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}
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void KDiffTextEdit::clearSyntaxHighlight()
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{
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int paragCount = paragraphs();
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for ( int i = 0; i < paragCount; ++i ) {
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clearParagraphBackground( i );
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}
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}
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void KDiffTextEdit::searchExtParts()
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{
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// only execute once
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static bool init = false;
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if ( init )
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return;
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init = true;
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// search all parts that can handle text/x-diff
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TDETrader::OfferList offers = TDETrader::self()->query("text/x-diff", "('KParts/ReadOnlyPart' in ServiceTypes) and ('text/x-diff' in ServiceTypes)");
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TDETrader::OfferList::const_iterator it;
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for ( it = offers.begin(); it != offers.end(); ++it ) {
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KService::Ptr ptr = (*it);
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extPartsTranslated << ptr->name();
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extParts << ptr->desktopEntryName();
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}
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return;
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}
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void KDiffTextEdit::popupActivated( int id )
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{
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id -= POPUP_BASE;
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if ( id < 0 || id > (int)extParts.count() )
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return;
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emit externalPartRequested( extParts[ id ] );
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}
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DiffWidget::DiffWidget( TQWidget *parent, const char *name, WFlags f ):
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TQWidget( parent, name, f ), tempFile( 0 )
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{
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job = 0;
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extPart = 0;
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te = new KDiffTextEdit( this, "Main Diff Viewer" );
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te->setReadOnly( true );
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te->setTextFormat( TQTextEdit::PlainText );
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// te->setMinimumSize( 300, 200 );
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connect( te, TQT_SIGNAL(externalPartRequested(const TQString&)), this, TQT_SLOT(loadExtPart(const TQString&)) );
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TQVBoxLayout* layout = new TQVBoxLayout( this );
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layout->addWidget( te );
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}
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DiffWidget::~DiffWidget()
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{
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delete tempFile;
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}
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void DiffWidget::setExtPartVisible( bool visible )
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{
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if ( !extPart || !extPart->widget() ) {
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te->show();
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return;
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}
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if ( visible ) {
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te->hide();
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extPart->widget()->show();
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} else {
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te->show();
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extPart->widget()->hide();
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}
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}
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void DiffWidget::loadExtPart( const TQString& partName )
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{
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if ( extPart ) {
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setExtPartVisible( false );
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delete extPart;
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extPart = 0;
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}
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KService::Ptr extService = KService::serviceByDesktopName( partName );
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if ( !extService )
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return;
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extPart = KParts::ComponentFactory::createPartInstanceFromService<KParts::ReadOnlyPart>( extService, this, 0, TQT_TQOBJECT(this), 0 );
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if ( !extPart || !extPart->widget() )
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return;
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layout()->add( extPart->widget() );
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setExtPartVisible( true );
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if ( te->paragraphs() > 0 )
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populateExtPart();
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}
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void DiffWidget::slotClear()
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{
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te->clear();
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if ( extPart )
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extPart->closeURL();
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}
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// internally for the TextEdit only!
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void DiffWidget::slotAppend( const TQString& str )
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{
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te->append( str );
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}
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// internally for the TextEdit only!
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void DiffWidget::slotAppend( TDEIO::Job*, const TQByteArray& ba )
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{
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slotAppend( TQString( ba ) );
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}
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void DiffWidget::populateExtPart()
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{
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if ( !extPart )
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return;
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bool ok = false;
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int paragCount = te->paragraphs();
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if ( extPart->openStream( "text/plain", KURL() ) ) {
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for ( int i = 0; i < paragCount; ++i )
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extPart->writeStream( te->text( i ).local8Bit() );
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ok = extPart->closeStream();
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} else {
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// workaround for parts that cannot handle streams
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delete tempFile;
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tempFile = new KTempFile();
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tempFile->setAutoDelete( true );
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for ( int i = 0; i < paragCount; ++i )
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*(tempFile->textStream()) << te->text( i ) << endl;
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tempFile->close();
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ok = extPart->openURL( KURL( tempFile->name() ) );
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}
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if ( !ok )
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setExtPartVisible( false );
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}
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// internally for the TextEdit only!
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void DiffWidget::slotFinished()
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{
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te->applySyntaxHighlight();
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populateExtPart();
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}
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void DiffWidget::setDiff( const TQString& diff )
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{
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slotClear();
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slotAppend( diff );
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slotFinished();
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}
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void DiffWidget::openURL( const KURL& url )
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{
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if ( job )
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job->kill();
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TDEIO::TransferJob* job = TDEIO::get( url );
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if ( !job )
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return;
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connect( job, TQT_SIGNAL(data( TDEIO::Job *, const TQByteArray & )),
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this, TQT_SLOT(slotAppend( TDEIO::Job*, const TQByteArray& )) );
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connect( job, TQT_SIGNAL(result( TDEIO::Job * )),
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this, TQT_SLOT(slotFinished()) );
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}
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void DiffWidget::contextMenuEvent( TQContextMenuEvent* /* e */ )
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{
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TQPopupMenu* popup = new TQPopupMenu( this );
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if ( !te->isVisible() )
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popup->insertItem( i18n("Display &Raw Output"), this, TQT_SLOT(showTextEdit()) );
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popup->exec( TQCursor::pos() );
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delete popup;
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}
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void DiffWidget::showExtPart()
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{
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setExtPartVisible( true );
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}
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void DiffWidget::showTextEdit()
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{
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setExtPartVisible( false );
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}
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#include "diffwidget.moc"
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