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510 lines
14 KiB
510 lines
14 KiB
/* This file is part of the KDE project
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Copyright (C) 2001, 2002, 2003 The Karbon Developers
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "vpatterntool.h"
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#include <tqtoolbutton.h>
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#include <tqframe.h>
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#include <tqhbuttongroup.h>
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#include <tqlayout.h>
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#include <tqfileinfo.h>
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#include <tqlabel.h>
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#include <tqcursor.h>
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#include <kiconloader.h>
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#include <koIconChooser.h>
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#include <kfiledialog.h>
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#include <kmessagebox.h>
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#include <karbon_factory.h>
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#include <karbon_resourceserver.h>
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#include <karbon_view.h>
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#include <karbon_part.h>
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#include <render/vpainter.h>
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#include <render/vpainterfactory.h>
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#include <core/vselection.h>
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#include <core/vfill.h>
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#include <core/vstroke.h>
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#include <commands/vfillcmd.h>
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#include <commands/vstrokecmd.h>
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#include <widgets/vstrokefillpreview.h>
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VPatternWidget::VPatternWidget( TQPtrList<KoIconItem>* patterns, VTool*, TQWidget* parent )
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: KDialogBase( parent, "", true, i18n( "Choose Pattern" ), Ok | Cancel ), m_pattern( 0 )
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{
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TQWidget *base = new TQWidget( this );
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TQVBoxLayout* tqlayout = new TQVBoxLayout( base );
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tqlayout->addWidget( m_patternChooser = new KoIconChooser( TQSize( 32, 32 ), base ) );
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tqlayout->addWidget( m_buttonGroup = new TQHButtonGroup( base ) );
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m_buttonGroup->insert( m_importPatternButton = new TQToolButton( m_buttonGroup ) );
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m_buttonGroup->insert( m_deletePatternButton = new TQToolButton( m_buttonGroup ) );
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m_patternChooser->setFixedSize( 180, 120 );
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m_importPatternButton->setIconSet( SmallIconSet( "14_layer_newlayer" ) );
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m_importPatternButton->setTextLabel( i18n( "Import" ) );
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m_deletePatternButton->setIconSet( SmallIconSet("14_layer_deletelayer" ) );
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m_deletePatternButton->setTextLabel( i18n( "Delete" ) );
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m_buttonGroup->setInsideMargin( 3 );
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m_importPatternButton->setEnabled( true );
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m_deletePatternButton->setEnabled( false );
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//setFrameStyle( Box | Sunken );
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tqlayout->setMargin( 3 );
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connect( m_buttonGroup, TQT_SIGNAL( clicked( int ) ), this, TQT_SLOT( slotButtonClicked( int ) ) );
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connect( m_patternChooser, TQT_SIGNAL( selected( KoIconItem* ) ), this, TQT_SLOT( patternSelected( KoIconItem* ) ) );
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KoIconItem* item;
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for( item = patterns->first(); item; item = patterns->next() )
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m_patternChooser->addItem( item );
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m_pattern = (VPattern*)patterns->first();
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setMainWidget( base );
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} // VPatternWidget::VPatternWidget
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VPatternWidget::~VPatternWidget()
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{
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} // VPatternWidget::~VPatternWidget
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VPattern* VPatternWidget::selectedPattern()
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{
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return m_pattern;
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} // VPatternWidget::selectedPattern
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void VPatternWidget::importPattern()
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{
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VPattern* pattern = KarbonFactory::rServer()->addPattern( KFileDialog::getOpenFileName( TQString(),
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"*.jpg *.gif *.png *.tif *.xpm *.bmp", this, i18n( "Choose Pattern to Add" ) ) );
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if( pattern )
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m_patternChooser->addItem( pattern );
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} // VPatternWidget::importPattern
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void VPatternWidget::deletePattern()
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{
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m_patternChooser->removeItem( m_pattern );
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KarbonFactory::rServer()->removePattern( m_pattern );
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m_patternChooser->updateContents();
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m_pattern = static_cast<VPattern*>( m_patternChooser->currentItem() );
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} // VPatternWidget::deletePattern
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void VPatternWidget::slotButtonClicked( int id )
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{
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switch( id )
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{
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case 0: importPattern();
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break;
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case 1: deletePattern();
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break;
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}
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} // VPatternWidget::slotButtonClicked
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void VPatternWidget::patternSelected( KoIconItem* item )
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{
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m_pattern = (VPattern*)item;
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m_deletePatternButton->setEnabled( TQFileInfo( m_pattern->tilename() ).isWritable() );
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} // VPatternWidget::patternSelected
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VPatternTool::VPatternTool( KarbonView *view )
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: VTool( view, "tool_pattern" ), m_state( normal ), m_handleSize( 3 ), m_active( false )
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{
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TQPtrList<KoIconItem> patterns = KarbonFactory::rServer()->patterns();
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m_optionsWidget = new VPatternWidget( &patterns, this );
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registerTool( this );
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} // VPatternTool::VPatternTool
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VPatternTool::~VPatternTool()
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{
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delete m_optionsWidget;
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} // VPatternTool::~VPatternTool
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void
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VPatternTool::activate()
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{
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m_active = true;
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m_state = normal;
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VTool::activate();
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view()->statusMessage()->setText( i18n( "Pattern" ) );
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view()->setCursor( TQCursor( TQt::crossCursor ) );
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if( view() )
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{
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// disable selection handles
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view()->part()->document().selection()->showHandle( false );
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// connect to the stroke-fill-preview to get notice when the stroke or fill gets selected
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VStrokeFillPreview* preview = view()->strokeFillPreview();
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if( preview )
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{
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connect( preview, TQT_SIGNAL( fillSelected() ), this, TQT_SLOT( targetChanged() ) );
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connect( preview, TQT_SIGNAL( strokeSelected() ), this, TQT_SLOT( targetChanged() ) );
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}
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view()->repaintAll( view()->part()->document().selection()->boundingBox() );
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}
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}
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void
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VPatternTool::deactivate()
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{
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m_active = false;
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if( view() )
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{
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// enable selection handles
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view()->part()->document().selection()->showHandle( true );
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VStrokeFillPreview* preview = view()->strokeFillPreview();
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if( preview )
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{
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disconnect( preview, TQT_SIGNAL( fillSelected() ), this, TQT_SLOT( targetChanged() ) );
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disconnect( preview, TQT_SIGNAL( strokeSelected() ), this, TQT_SLOT( targetChanged() ) );
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}
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view()->repaintAll( view()->part()->document().selection()->boundingBox() );
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}
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}
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TQString
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VPatternTool::contextHelp()
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{
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TQString s = i18n( "<qt><b>Pattern tool:</b><br>" );
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s += i18n( "<i>Click</i> on the pattern you want in the chooser.<br>" );
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s += i18n( "<i>Click and drag</i> to choose the pattern vector.</qt>" );
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s += i18n( "<i>Press i or Shift+i</i> to decrease or increase the handle size.<br>" );
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return s;
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} // VPatternTool::contextHelp
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void VPatternTool::draw()
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{
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if( ! view() || view()->part()->document().selection()->objects().count() == 0 )
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return;
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VPainter *painter = view()->painterFactory()->editpainter();
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painter->setRasterOp( TQt::NotROP );
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painter->setPen( TQt::DotLine );
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// differentiate between moving a handle and creating a complete new vector
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if( m_state == moveOrigin || m_state == moveVector )
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{
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painter->newPath();
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painter->moveTo( m_fixed );
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painter->lineTo( m_current );
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painter->strokePath();
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// draw the handle rects
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painter->drawNode( m_fixed, m_handleSize );
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painter->drawNode( m_current, m_handleSize );
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}
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else if( m_state == createNew )
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{
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painter->newPath();
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painter->moveTo( first() );
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painter->lineTo( m_current );
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painter->strokePath();
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// draw the handle rects
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painter->drawNode( first(), m_handleSize );
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painter->drawNode( m_current, m_handleSize );
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}
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} // VPatternTool::draw
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bool
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VPatternTool::getPattern( VPattern &pattern )
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{
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if( ! view() )
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return false;
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// determine if stroke of fill is selected for editing
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//VStrokeFillPreview *preview = view()->strokeFillPreview();
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//bool strokeSelected = ( preview && preview->strokeIsSelected() );
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bool strokeSelected = false; // FIXME: stroke patterns don't work
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VSelection* selection = view()->part()->document().selection();
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if( selection->objects().count() != 1 )
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return false;
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VObject *obj = selection->objects().getFirst();
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// get the pattern of the first selected object, if any
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if( strokeSelected && obj->stroke()->type() == VStroke::patt )
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pattern = obj->stroke()->pattern();
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else if( ! strokeSelected && obj->fill()->type() == VFill::patt )
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pattern = obj->fill()->pattern();
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else
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return false;
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return true;
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}
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void
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VPatternTool::draw( VPainter* painter )
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{
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if( ! m_active )
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return;
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if( m_state != normal )
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return;
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if( ! getPattern( m_pattern ) )
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return;
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KoPoint s = m_pattern.origin();
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KoPoint e = m_pattern.vector();
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// save the handle rects for later inside testing
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m_origin = KoRect( s.x()-m_handleSize, s.y()-m_handleSize, 2*m_handleSize, 2*m_handleSize );
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m_vector = KoRect( e.x()-m_handleSize, e.y()-m_handleSize, 2*m_handleSize, 2*m_handleSize );
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painter->setPen( TQt::blue.light() );
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painter->setBrush( TQt::blue.light() );
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painter->setRasterOp( TQt::XorROP );
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// draw the pattern vector
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painter->newPath();
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painter->moveTo( s );
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painter->lineTo( e );
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painter->strokePath();
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// draw the handle rects
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painter->drawNode( m_origin.center(), m_handleSize );
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painter->drawNode( m_vector.center(), m_handleSize );
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}
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void
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VPatternTool::mouseDrag()
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{
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if( m_state == normal )
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return;
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draw();
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m_current = last();
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draw();
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} // VPatternTool::mouseDrag
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void
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VPatternTool::mouseButtonPress()
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{
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m_current = first();
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// set the apropriate editing state
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if( m_origin.contains( m_current ) )
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{
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m_state = moveOrigin;
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m_fixed = m_vector.center();
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}
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else if( m_vector.contains( m_current ) )
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{
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m_state = moveVector;
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m_fixed = m_origin.center();
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}
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else
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m_state = createNew;
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} // VPatternTool::mouseButtonPress
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void
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VPatternTool::mouseButtonRelease()
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{
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m_state = normal;
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if( view()->part()->document().selection()->objects().count() == 0 )
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return;
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// save old pattern position
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VPattern oldPattern = m_pattern;
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if( first() == last() )
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{
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if( showDialog() != TQDialog::Accepted )
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return;
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}
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if( !m_optionsWidget->selectedPattern() )
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{
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KMessageBox::error( 0L, i18n( "Please select a pattern." ), "" );
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return;
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}
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bool strokeSelected = false;
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// determine the target from the stroke-fill-preview-widget
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//VStrokeFillPreview* preview = view()->strokeFillPreview();
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//if( preview && preview->strokeIsSelected() ) // FIXME: stroke patterns don't work
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// strokeSelected = true;
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// calculate a sane intial position for the new pattern
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if( view()->part()->document().selection()->objects().count() == 1 )
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{
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VObject *obj = view()->part()->document().selection()->objects().getFirst();
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if( ( ! strokeSelected && obj->fill()->type() != VFill::patt ) || (strokeSelected && obj->stroke()->type() != VStroke::patt ) )
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{
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KoRect bbox = obj->boundingBox();
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oldPattern.setOrigin( bbox.bottomLeft() + 0.5*(bbox.topLeft()-bbox.bottomLeft()) );
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oldPattern.setVector( bbox.bottomRight() + 0.5*(bbox.topRight()-bbox.bottomRight()) );
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}
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}
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m_pattern = *m_optionsWidget->selectedPattern();
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// use the old pattern position
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m_pattern.setOrigin( oldPattern.origin() );
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m_pattern.setVector( oldPattern.vector() );
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if( ! strokeSelected )
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{
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VFill fill;
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fill.pattern() = m_pattern;
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fill.setType( VFill::patt );
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view()->part()->addCommand(
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new VFillCmd( &view()->part()->document(), fill, "14_pattern" ), true );
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}
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else
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{
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VStroke stroke;
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stroke.pattern() = m_pattern;
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stroke.setType( VStroke::patt );
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view()->part()->addCommand(
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new VStrokeCmd( &view()->part()->document(), &stroke, "14_pattern" ), true );
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}
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} // VPatternTool::mouseButtonRelease
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void
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VPatternTool::mouseDragRelease()
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{
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if( ! view() || m_state == normal )
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return;
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if( view()->part()->document().selection()->objects().count() == 0 )
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{
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draw();
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return;
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}
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if( !m_optionsWidget->selectedPattern() )
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{
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draw();
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KMessageBox::error( 0L, i18n( "Please select a pattern." ), "" );
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return;
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}
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//m_pattern = *m_optionsWidget->selectedPattern();
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if( m_state == moveOrigin )
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m_pattern.setOrigin( last() );
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else if( m_state == moveVector )
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m_pattern.setVector( last() );
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else if( m_state == createNew )
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{
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m_pattern.setOrigin( first() );
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m_pattern.setVector( last() );
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}
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m_state = normal;
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VStrokeFillPreview* preview = view()->strokeFillPreview();
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if( ! preview )
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return;
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//if( ! preview->strokeIsSelected() ) // FIXME: stroke patterns don't work
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{
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VFill fill;
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fill.pattern() = m_pattern;
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fill.setType( VFill::patt );
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view()->part()->addCommand(
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new VFillCmd( &view()->part()->document(), fill, "14_pattern" ), true );
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}
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/*
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else
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{
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VStroke stroke;
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stroke.pattern() = m_pattern;
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stroke.setType( VStroke::patt );
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view()->part()->addCommand(
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new VStrokeCmd( &view()->part()->document(), &stroke, "14_pattern" ), true );
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}
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*/
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} // VPatternTool::mouseDragRelease
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void
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VPatternTool::cancel()
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{
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// Erase old object:
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if( isDragging() )
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draw();
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m_state = normal;
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}
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bool
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VPatternTool::showDialog() const
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{
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return m_optionsWidget->exec() == TQDialog::Accepted;
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}
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void
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VPatternTool::setup( KActionCollection *collection )
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{
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m_action = static_cast<KRadioAction *>(collection -> action( name() ) );
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if( m_action == 0 )
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{
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m_action = new KRadioAction( i18n( "Pattern Tool" ), "14_pattern", TQt::SHIFT+TQt::Key_H, this, TQT_SLOT( activate() ), collection, name() );
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m_action->setToolTip( i18n( "Pattern" ) );
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m_action->setExclusiveGroup( "misc" );
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//m_ownAction = true;
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}
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}
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void
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VPatternTool::setCursor() const
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{
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if( !view() ) return;
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// set a different cursor if mouse is inside the handle rects
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if( m_origin.contains( last() ) || m_vector.contains( last() ) )
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view()->setCursor( TQCursor( TQt::SizeAllCursor ) );
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else
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view()->setCursor( TQCursor( TQt::arrowCursor ) );
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}
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bool
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VPatternTool::keyReleased( TQt::Key key )
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{
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// increase/decrease the handle size
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switch( key )
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{
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case TQt::Key_I:
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if( shiftPressed() )
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m_handleSize++;
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else if( m_handleSize > 3 )
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m_handleSize--;
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break;
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default: return false;
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}
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if( view() )
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view()->repaintAll( view()->part()->document().selection()->boundingBox() );
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return true;
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}
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void
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VPatternTool::targetChanged()
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{
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if( view() )
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view()->repaintAll( view()->part()->document().selection()->boundingBox() );
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}
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#include "vpatterntool.moc"
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