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tdeedu/kig/modes/construct_mode.cpp

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// Copyright (C) 2003 Dominique Devriese <devriese@kde.org>
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301, USA.
#include "construct_mode.h"
#include "../objects/object_factory.h"
#include "../objects/object_drawer.h"
#include "../objects/text_type.h"
#include "../objects/text_imp.h"
#include "../objects/bogus_imp.h"
#include "../objects/point_imp.h"
#include "../misc/argsparser.h"
#include "../kig/kig_document.h"
#include "../kig/kig_part.h"
#include "../kig/kig_view.h"
#include "../misc/object_constructor.h"
#include "../misc/coordinate_system.h"
#include "../misc/kigpainter.h"
#include "../misc/calcpaths.h"
#include "popup.h"
#include <kcursor.h>
#include <tdeaction.h>
#include <algorithm>
#include <functional>
static void redefinePoint( ObjectTypeCalcer* mpt, const Coordinate& c, KigDocument& doc, const KigWidget& w )
{
ObjectFactory::instance()->redefinePoint( mpt, c, doc, w );
mpt->calc( doc );
}
BaseConstructMode::BaseConstructMode( KigPart& d )
: BaseMode( d )
{
mpt = ObjectFactory::instance()->fixedPointCalcer( Coordinate( 0, 0 ) );
mpt->calc( d.document() );
mcursor = ObjectFactory::instance()->cursorPointCalcer( Coordinate( 0, 0 ) );
mcursor->calc( d.document() );
// mcursorholder = new ObjectHolder( mcursor );
}
BaseConstructMode::~BaseConstructMode()
{
delete mcursor;
// delete mcursorholder;
}
void BaseConstructMode::leftReleased( TQMouseEvent* e, KigWidget* v )
{
if( (pointLocation() - e->pos()).manhattanLength() > 4 ) return;
ObjectHolder* o = 0;
bool keyCtrlOrShift = ( e->state() & ( ControlButton | ShiftButton) ) != 0;
std::vector<ObjectHolder*> moco = oco();
if ( ! moco.empty() )
{
std::vector<ObjectHolder*> goodargs;
if ( !moco.empty() )
{
std::vector<ObjectHolder*>::const_iterator it;
std::vector<ObjectCalcer*> testargs = getCalcers( mparents );
for ( std::vector<ObjectHolder*>::const_iterator i = moco.begin(); i != moco.end(); ++i )
{
it = std::find( mparents.begin(), mparents.end(), *i );
bool newdup =
( it == mparents.end() ) ||
isAlreadySelectedOK( testargs, it - mparents.begin() );
if ( newdup )
{
testargs.push_back( ( *i )->calcer() );
if ( wantArgs( testargs, mdoc.document(), *v ) )
goodargs.push_back( *i );
testargs.pop_back();
}
}
int id = ObjectChooserPopup::getObjectFromList( e->pos(), v, goodargs );
if ( id >= 0 )
o = goodargs[id];
}
}
leftClickedObject( o, e->pos(), *v, keyCtrlOrShift );
KigMode::leftReleased( e, v );
}
void BaseConstructMode::leftClickedObject(
ObjectHolder* o, const TQPoint& p, KigWidget& w, bool )
{
std::vector<ObjectHolder*>::iterator it = std::find( mparents.begin(), mparents.end(), o );
std::vector<ObjectCalcer*> nargs = getCalcers( mparents );
//
// mp: duplicationchecked controls whether the arguments list is
// free of duplications or if a duplication is safe (asking this to
// the Constructor class through the "isAlreadySelectedOK" method).
//
bool duplicationchecked =
( it == mparents.end() ) ||
isAlreadySelectedOK( nargs, it - mparents.begin() );
if ( o && duplicationchecked )
{
nargs.push_back( o->calcer() );
if ( wantArgs( nargs, mdoc.document(), w ) )
{
selectObject( o, w );
return;
}
}
nargs = getCalcers( mparents );
nargs.push_back( mpt.get() );
if ( wantArgs( nargs, mdoc.document(), w ) )
{
// add mpt to the document..
ObjectHolder* n = new ObjectHolder( mpt.get() );
mdoc.addObject( n );
selectObject( n, w );
// get a new mpt for our further use..
mpt = ObjectFactory::instance()->sensiblePointCalcer( w.fromScreen( p ), mdoc.document(), w );
mpt->calc( mdoc.document() );
return;
}
nargs = getCalcers( mparents );
nargs.push_back( mcursor );
if ( wantArgs( nargs, mdoc.document(), w ) )
{
// DON'T add mpt to the document..
// the objectholder has been constructed once and for all
// when entering construction mode, and delete in the
// destructor.
ObjectHolder* n = new ObjectHolder( mcursor );
selectObject( n, w );
mcursor = ObjectFactory::instance()->cursorPointCalcer( w.fromScreen( p ) );
// mcursor = ObjectFactory::instance()->sensiblePointCalcer( w.fromScreen( p ), mdoc.document(), w );
mcursor->calc( mdoc.document() );
delete n;
}
}
void BaseConstructMode::midClicked( const TQPoint& p, KigWidget& w )
{
std::vector<ObjectCalcer*> args = getCalcers( mparents );
args.push_back( mpt.get() );
if ( wantArgs( args, mdoc.document(), w ) )
{
ObjectHolder* n = new ObjectHolder( mpt.get() );
mdoc.addObject( n );
selectObject( n, w );
mpt = ObjectFactory::instance()->sensiblePointCalcer( w.fromScreen( p ), mdoc.document(), w );
mpt->calc( mdoc.document() );
}
}
void BaseConstructMode::rightClicked( const std::vector<ObjectHolder*>&, const TQPoint&, KigWidget& )
{
// TODO ?
}
void BaseConstructMode::mouseMoved( const std::vector<ObjectHolder*>& os, const TQPoint& p,
KigWidget& w, bool shiftpressed )
{
mdoc.emitStatusBarText( selectStatement( getCalcers( mparents ), w ) );
w.updateCurPix();
KigPainter pter( w.screenInfo(), &w.curPix, mdoc.document() );
Coordinate ncoord = w.fromScreen( p );
if ( shiftpressed )
ncoord = mdoc.document().coordinateSystem().snapToGrid( ncoord, w );
redefinePoint( mpt.get(), ncoord, mdoc.document(), w );
mcursor->move( ncoord, mdoc.document() );
mcursor->calc( mdoc.document() );
std::vector<ObjectCalcer*> args = getCalcers( mparents );
bool duplicationchecked = false;
std::vector<ObjectHolder*> goodargs;
if ( ! os.empty() )
{
std::vector<ObjectHolder*>::const_iterator it;
std::vector<ObjectCalcer*> testargs = getCalcers( mparents );
for ( std::vector<ObjectHolder*>::const_iterator i = os.begin(); i != os.end(); ++i )
{
it = std::find( mparents.begin(), mparents.end(), *i );
bool newdup =
( it == mparents.end() ) ||
isAlreadySelectedOK( args, it - mparents.begin() );
if ( newdup )
{
testargs.push_back( ( *i )->calcer() );
if ( wantArgs( testargs, mdoc.document(), w ) )
goodargs.push_back( *i );
testargs.pop_back();
}
duplicationchecked |= newdup;
}
}
bool calcnow = ( goodargs.size() == 1 ) || ( ( goodargs.size() > 0 ) && ( goodargs.front()->imp()->inherits( PointImp::stype() ) ) );
if ( calcnow )
{
args.push_back( goodargs.front()->calcer() );
}
if ( !os.empty() && duplicationchecked && calcnow )
{
handlePrelim( args, p, pter, w );
w.setCursor( KCursor::handCursor() );
}
else
{
std::vector<ObjectCalcer*> args = getCalcers( mparents );
args.push_back( mpt.get() );
std::vector<ObjectCalcer*> argscursor = getCalcers( mparents );
argscursor.push_back( mcursor );
bool text = true;
if ( wantArgs( args, mdoc.document(), w ) )
{
ObjectDrawer d;
d.draw( *mpt->imp(), pter, true );
handlePrelim( args, p, pter, w );
w.setCursor( KCursor::handCursor() );
}
else if ( wantArgs( argscursor, mdoc.document(), w ) )
{
ObjectDrawer d;
// d.draw( *mcursor->imp(), pter, true );
handlePrelim( argscursor, p, pter, w );
w.setCursor( KCursor::crossCursor() );
}
else
{
w.setCursor( KCursor::arrowCursor() );
text = false;
}
if ( !text && ( goodargs.size() > 1 ) )
{
TQString strwhich = i18n( "Which object?" );
mdoc.emitStatusBarText( strwhich );
TQPoint textloc = p;
textloc.setX( textloc.x() + 15 );
pter.drawTextStd( textloc, strwhich );
w.setCursor( KCursor::handCursor() );
}
}
w.updateWidget( pter.overlay() );
}
void BaseConstructMode::selectObject( ObjectHolder* o, KigWidget& w )
{
mparents.push_back( o );
std::vector<ObjectCalcer*> args = getCalcers( mparents );
if ( wantArgs( args, mdoc.document(), w ) == ArgsParser::Complete )
{
handleArgs( args, w );
};
w.redrawScreen( mparents );
}
PointConstructMode::PointConstructMode( KigPart& d )
: BaseMode( d )
{
// we add the data objects to the document cause
// ObjectFactory::redefinePoint does that too, and this way, we can
// depend on them already being known by the doc when we add the
// mpt..
mpt = ObjectFactory::instance()->fixedPointCalcer( Coordinate() );
mpt->calc( d.document() );
mdoc.emitStatusBarText( i18n( "Click the location where you want to place the new point, or the curve that you want to attach it to..." ) );
}
PointConstructMode::~PointConstructMode()
{
}
void PointConstructMode::leftClickedObject(
ObjectHolder*, const TQPoint&, KigWidget& w, bool )
{
mdoc.addObject( new ObjectHolder( mpt.get() ) );
w.redrawScreen( std::vector<ObjectHolder*>() );
mdoc.emitStatusBarText( TQString() );
mdoc.doneMode( this );
}
void PointConstructMode::midClicked( const TQPoint& p, KigWidget& w )
{
leftClickedObject( 0, p, w, true );
}
void PointConstructMode::rightClicked( const std::vector<ObjectHolder*>&, const TQPoint&,
KigWidget& )
{
// TODO ?
}
void PointConstructMode::mouseMoved(
const std::vector<ObjectHolder*>&,
const TQPoint& p,
KigWidget& w,
bool shiftpressed )
{
w.updateCurPix();
KigPainter pter( w.screenInfo(), &w.curPix, mdoc.document() );
Coordinate ncoord = w.fromScreen( p );
if ( shiftpressed )
ncoord = mdoc.document().coordinateSystem().snapToGrid( ncoord, w );
redefinePoint( mpt.get(), ncoord, mdoc.document(), w );
ObjectDrawer d;
d.draw( *mpt->imp(), pter, true );
w.setCursor( KCursor::blankCursor() );
w.updateWidget( pter.overlay() );
}
void BaseConstructMode::enableActions()
{
BaseMode::enableActions();
mdoc.aCancelConstruction->setEnabled( true );
}
void BaseConstructMode::cancelConstruction()
{
finish();
}
void PointConstructMode::enableActions()
{
BaseMode::enableActions();
mdoc.aCancelConstruction->setEnabled( true );
}
void PointConstructMode::cancelConstruction()
{
mdoc.doneMode( this );
}
void BaseConstructMode::selectObjects( const std::vector<ObjectHolder*>& os, KigWidget& w )
{
for ( std::vector<ObjectHolder*>::const_iterator i = os.begin(); i != os.end(); ++i )
{
std::vector<ObjectCalcer*> args = getCalcers( mparents );
assert( wantArgs( args, mdoc.document(), w ) != ArgsParser::Complete );
selectObject( *i, w );
};
}
void ConstructMode::handlePrelim( const std::vector<ObjectCalcer*>& args, const TQPoint& p, KigPainter& pter, KigWidget& w )
{
// set the text next to the arrow cursor like in modes/normal.cpp
TQPoint textloc = p;
textloc.setX( textloc.x() + 15 );
mctor->handlePrelim( pter, args, mdoc.document(), w );
TQString o = mctor->useText( *args.back(), args, mdoc.document(), w );
pter.drawTextStd( textloc, o );
}
int ConstructMode::isAlreadySelectedOK( const std::vector<ObjectCalcer*>& os,
const int& pos )
{
return mctor->isAlreadySelectedOK( os, pos );
}
int ConstructMode::wantArgs( const std::vector<ObjectCalcer*>& os, KigDocument& d, KigWidget& w )
{
return mctor->wantArgs( os, d, w );
}
void BaseConstructMode::finish()
{
mdoc.doneMode( this );
}
ConstructMode::ConstructMode( KigPart& d, const ObjectConstructor* ctor )
: BaseConstructMode( d ), mctor( ctor )
{
}
ConstructMode::~ConstructMode()
{
}
// does a test result have a frame by default ?
static const bool test_has_frame_dflt = true;
void TestConstructMode::handlePrelim( const std::vector<ObjectCalcer*>& os, const TQPoint& p, KigPainter& pter, KigWidget& w )
{
Args args;
std::transform( os.begin(), os.end(), std::back_inserter( args ),
std::mem_fn( &ObjectCalcer::imp ) );
// usetext
TQString usetext = i18n( mtype->argsParser().usetext( args.back(), args ).c_str() );
TQPoint textloc = p;
textloc.setX( textloc.x() + 15 );
pter.drawTextStd( textloc, usetext );
// test result
ObjectImp* data = mtype->calc( args, mdoc.document() );
if ( ! data->valid() ) return;
assert( data->inherits( TestResultImp::stype() ) );
TQString outputtext = static_cast<TestResultImp*>( data )->data();
TextImp ti( outputtext, w.fromScreen( p + TQPoint( - 40, 30 ) ), test_has_frame_dflt );
ti.draw( pter );
delete data;
}
TestConstructMode::TestConstructMode( KigPart& d, const ArgsParserObjectType* type )
: BaseConstructMode( d ), mtype( type )
{
}
TestConstructMode::~TestConstructMode()
{
}
void ConstructMode::handleArgs( const std::vector<ObjectCalcer*>& args, KigWidget& w )
{
mctor->handleArgs( args, mdoc, w );
finish();
}
int TestConstructMode::isAlreadySelectedOK( const std::vector<ObjectCalcer*>&,
const int& )
{
return false;
}
int TestConstructMode::wantArgs( const std::vector<ObjectCalcer*>& os, KigDocument&, KigWidget& )
{
return mtype->argsParser().check( os );
}
void TestConstructMode::handleArgs( const std::vector<ObjectCalcer*>& args, KigWidget& )
{
mresult = new ObjectTypeCalcer( mtype, args );
mresult->calc( mdoc.document() );
mdoc.emitStatusBarText( i18n( "Now select the location for the result label." ) );
}
void TestConstructMode::leftClickedObject( ObjectHolder* o, const TQPoint& p,
KigWidget& w, bool ctrlOrShiftDown )
{
if ( mresult ) {
TQPoint qloc = p + TQPoint( -40, 0 );
Coordinate loc = w.fromScreen( qloc );
std::vector<ObjectCalcer*> parents;
parents.push_back( new ObjectConstCalcer( new IntImp( test_has_frame_dflt ) ) );
parents.push_back( new ObjectConstCalcer( new PointImp( loc ) ) );
parents.push_back( new ObjectConstCalcer( new StringImp( TQString::fromLatin1( "%1" ) ) ) );
assert( mresult->imp()->inherits( TestResultImp::stype() ) );
parents.push_back(
new ObjectPropertyCalcer(
mresult.get(), mresult->imp()->propertiesInternalNames().findIndex( "test-result" ) ) );
parents.back()->calc( mdoc.document() );
ObjectCalcer* ret = new ObjectTypeCalcer( TextType::instance(), parents );
ret->calc( mdoc.document() );
mdoc.addObject( new ObjectHolder( ret ) );
w.unsetCursor();
mdoc.emitStatusBarText( TQString() );
finish();
}
else
BaseConstructMode::leftClickedObject( o, p, w, ctrlOrShiftDown );
}
void TestConstructMode::midClicked( const TQPoint& p, KigWidget& w )
{
if ( mresult ) {
// nothing to be done here, really
}
else
BaseConstructMode::midClicked( p, w );
}
void TestConstructMode::rightClicked( const std::vector<ObjectHolder*>& oco, const TQPoint& p, KigWidget& w )
{
if ( mresult ) {
// nothing to be done here, really
}
else
BaseConstructMode::rightClicked( oco, p, w );
}
void TestConstructMode::mouseMoved( const std::vector<ObjectHolder*>& os, const TQPoint& p, KigWidget& w, bool shiftPressed )
{
if ( mresult ) {
w.setCursor( KCursor::blankCursor() );
w.updateCurPix();
KigPainter pter( w.screenInfo(), &w.curPix, mdoc.document() );
TQPoint qloc = p + TQPoint( -40, 0 );
Coordinate loc = w.fromScreen( qloc );
assert( dynamic_cast<const TestResultImp*>( mresult->imp() ) );
TextImp ti( static_cast<const TestResultImp*>( mresult->imp() )->data(), loc, test_has_frame_dflt );
ObjectDrawer d;
d.draw( ti, pter, false );
w.updateWidget( pter.overlay() );
}
else
BaseConstructMode::mouseMoved( os, p, w, shiftPressed );
}
TQString ConstructMode::selectStatement( const std::vector<ObjectCalcer*>& args, const KigWidget& w )
{
return mctor->selectStatement( args, mdoc.document(), w );
}
TQString TestConstructMode::selectStatement( const std::vector<ObjectCalcer*>& sel, const KigWidget& )
{
using namespace std;
Args args;
transform( sel.begin(), sel.end(), back_inserter( args ), mem_fn( &ObjectCalcer::imp ) );
std::string ret = mtype->argsParser().selectStatement( args );
if ( ret.empty() ) return TQString();
return i18n( ret.c_str() );
}
void PointConstructMode::redrawScreen( KigWidget* w )
{
w->redrawScreen( std::vector<ObjectHolder*>() );
}
void BaseConstructMode::redrawScreen( KigWidget* w )
{
w->redrawScreen( std::vector<ObjectHolder*>() );
}