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koffice/karbon/tools/vpatterntool.cc

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