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koffice/kword/KWFormulaFrameSet.cpp

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/* This file is part of the KDE project
Copyright (C) 2003 Ulrich Kuettler <ulrich.kuettler@gmx.de>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <tqfile.h>
#include "KWFormulaFrameSet.h"
#include "KWDocument.h"
#include "KWView.h"
#include "KWViewMode.h"
#include "KWCanvas.h"
#include "KWFrame.h"
#include "defs.h"
#include <kformulacontainer.h>
#include <kformuladocument.h>
#include <kformulaview.h>
#include <KoOasisContext.h>
#include <KoXmlNS.h>
#include <KoXmlWriter.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kdebug.h>
#include <ktempfile.h>
#include <dcopobject.h>
#include "KWordFormulaFrameSetIface.h"
#include "KWordFormulaFrameSetEditIface.h"
#include <assert.h>
// #ifdef __GNUC__
// #undef k_funcinfo
// #define k_funcinfo "[\033[36m" << __PRETTY_FUNCTION__ << "\033[m] "
// #endif
/******************************************************************/
/* Class: KWFormulaFrameSet */
/******************************************************************/
KWFormulaFrameSet::KWFormulaFrameSet( KWDocument *doc, const TQString & name )
: KWFrameSet( doc ), m_changed( false ), m_edit( 0 )
{
if ( name.isEmpty() )
m_name = doc->generateFramesetName( i18n( "Formula %1" ) );
else
m_name = name;
init();
}
KWFormulaFrameSet::KWFormulaFrameSet( KWDocument* doc, const TQDomElement& frameTag,
const TQDomElement& mathTag, KoOasisContext& context )
: KWFrameSet( doc ), m_changed( false ), m_edit( 0 )
{
m_name = frameTag.attributeNS( KoXmlNS::draw, "name", TQString() );
if ( doc->frameSetByName( m_name ) ) // already exists!
m_name = doc->generateFramesetName( m_name + " %1" );
init();
context.styleStack().save();
context.fillStyleStack( frameTag, KoXmlNS::draw, "style-name", "graphic" ); // get the style for the graphics element
/*KWFrame* frame =*/ loadOasisFrame( frameTag, context );
context.styleStack().restore();
formula->loadMathML( mathTag );
}
void KWFormulaFrameSet::init()
{
// The newly created formula is not yet part of the formula
// document. It will be added when a frame is created.
formula = m_doc->formulaDocument()->createFormula( -1, false );
// With the new drawing scheme (drawFrame being called with translated painter)
// there is no need to move the KFormulaContainer anymore, it remains at (0,0).
formula->moveTo( 0, 0 );
connect( formula, TQT_SIGNAL( formulaChanged( double, double ) ),
this, TQT_SLOT( slotFormulaChanged( double, double ) ) );
connect( formula, TQT_SIGNAL( errorMsg( const TQString& ) ),
this, TQT_SLOT( slotErrorMessage( const TQString& ) ) );
/*
if ( isFloating() ) {
// we need to look for the anchor every time, don't cache this value.
// undo/redo creates/deletes anchors
KWAnchor * anchor = findAnchor( 0 );
if ( anchor ) {
KoTextFormat * format = anchor->format();
formula->setFontSize( format->pointSize() );
}
}
*/
TQRect rect = formula->boundingRect();
slotFormulaChanged(rect.width(), rect.height());
}
KWordFrameSetIface* KWFormulaFrameSet::dcopObject()
{
if ( !m_dcop )
m_dcop = new KWordFormulaFrameSetIface( this );
return m_dcop;
}
KWFormulaFrameSet::~KWFormulaFrameSet()
{
kdDebug() << k_funcinfo << endl;
delete formula;
}
void KWFormulaFrameSet::addFrame( KWFrame *frame, bool recalc )
{
kdDebug() << k_funcinfo << endl;
if ( formula ) {
frame->setWidth( formula->width() );
frame->setHeight( formula->height() );
}
KWFrameSet::addFrame( frame, recalc );
if ( formula ) {
formula->registerFormula();
}
}
void KWFormulaFrameSet::deleteFrame( unsigned int num, bool remove, bool recalc )
{
kdDebug() << k_funcinfo << endl;
assert( num == 0 );
KWFrameSet::deleteFrame( num, remove, recalc );
formula->unregisterFormula();
}
KWFrameSetEdit* KWFormulaFrameSet::createFrameSetEdit(KWCanvas* canvas)
{
return new KWFormulaFrameSetEdit(this, canvas);
}
void KWFormulaFrameSet::drawFrameContents( KWFrame* /*frame*/,
TQPainter* painter, const TQRect& crect,
const TQColorGroup& cg, bool onlyChanged,
bool resetChanged,
KWFrameSetEdit* /*edit*/, KWViewMode * )
{
if ( m_changed || !onlyChanged )
{
if ( resetChanged )
m_changed = false;
bool printing = painter->device()->devType() == TQInternal::Printer;
bool clipping = true;
TQPainter *p;
TQPixmap* pix = 0L;
if ( printing ) {
p = painter;
clipping = painter->hasClipping();
// That's unfortunate for formulas wider than the page.
// However it helps a lot with ordinary formulas.
painter->setClipping( false );
}
else {
pix = doubleBufferPixmap( crect.size() );
p = new TQPainter( pix );
p->translate( -crect.x(), -crect.y() );
}
if ( m_edit ) {
//KWFormulaFrameSetEdit * formulaEdit = static_cast<KWFormulaFrameSetEdit *>(edit);
if ( m_edit->getFormulaView() ) {
m_edit->getFormulaView()->draw( *p, crect, cg );
}
else {
formula->draw( *p, crect, cg );
}
}
else {
formula->draw( *p, crect, cg );
}
if ( !printing ) {
p->end();
delete p;
painter->drawPixmap( crect.topLeft(), *pix );
}
else {
painter->setClipping( clipping );
}
}
}
void KWFormulaFrameSet::slotFormulaChanged( double width, double height )
{
if ( m_frames.isEmpty() )
return;
double oldWidth = m_frames.first()->width();
double oldHeight = m_frames.first()->height();
m_frames.first()->setWidth( width );
m_frames.first()->setHeight( height );
updateFrames();
kWordDocument()->layout();
if ( ( oldWidth != width ) || ( oldHeight != height ) ) {
kWordDocument()->repaintAllViews( false );
kWordDocument()->updateRulerFrameStartEnd();
}
m_changed = true;
if ( !m_edit ) {
// A change without a FrameSetEdit! This must be the result of
// an undo. We need to evaluate.
formula->startEvaluation();
}
}
void KWFormulaFrameSet::slotErrorMessage( const TQString& msg )
{
KMessageBox::error( /*m_widget*/ 0, msg );
}
MouseMeaning KWFormulaFrameSet::getMouseMeaningInsideFrame( const KoPoint& )
{
return MEANING_MOUSE_INSIDE_TEXT;
}
TQDomElement KWFormulaFrameSet::save(TQDomElement& parentElem, bool saveFrames)
{
if ( m_frames.isEmpty() ) // Deleted frameset -> don't save
return TQDomElement();
TQDomElement framesetElem = parentElem.ownerDocument().createElement("FRAMESET");
parentElem.appendChild(framesetElem);
KWFrameSet::saveCommon(framesetElem, saveFrames);
TQDomElement formulaElem = parentElem.ownerDocument().createElement("FORMULA");
framesetElem.appendChild(formulaElem);
formula->save(formulaElem);
return framesetElem;
}
void KWFormulaFrameSet::saveOasis(KoXmlWriter& writer, KoSavingContext& context, bool) const
{
KWFrame *frame = m_frames.getFirst();
frame->startOasisFrame( writer, context.mainStyles(), name() );
KTempFile contentTmpFile;
contentTmpFile.setAutoDelete( true );
TQFile* tmpFile = contentTmpFile.file();
TQTextStream stream(tmpFile);
stream.setEncoding( TQTextStream::UnicodeUTF8 );
formula->saveMathML( stream, true );
tmpFile->close();
writer.startElement( "draw:object" );
writer.startElement( "math:math" );
writer.addCompleteElement( TQT_TQIODEVICE(tmpFile) );
writer.endElement(); // math:math
writer.endElement(); // draw:object
writer.endElement(); // draw:frame
}
void KWFormulaFrameSet::load(TQDomElement& attributes, bool loadFrames)
{
KWFrameSet::load(attributes, loadFrames);
TQDomElement formulaElem = attributes.namedItem("FORMULA").toElement();
paste( formulaElem );
}
void KWFormulaFrameSet::paste( TQDomNode& formulaElem )
{
if (!formulaElem.isNull()) {
if (formula == 0) {
formula = m_doc->formulaDocument()->createFormula( -1, false );
connect(formula, TQT_SIGNAL(formulaChanged(double, double)),
this, TQT_SLOT(slotFormulaChanged(double, double)));
connect( formula, TQT_SIGNAL( errorMsg( const TQString& ) ),
this, TQT_SLOT( slotErrorMessage( const TQString& ) ) );
}
m_doc->formulaDocument()->setCreationStrategy( "Oasis" );
if ( !formula->loadMathML( formulaElem.firstChild().toElement() ) ) {
kdError(32001) << "Error loading formula" << endl;
}
}
else {
kdError(32001) << "Missing math tag in FRAMESET" << endl;
}
}
void KWFormulaFrameSet::moveFloatingFrame( int frameNum, const KoPoint &position )
{
kdDebug() << k_funcinfo << endl;
KWFrameSet::moveFloatingFrame( frameNum, position );
if ( !m_frames.isEmpty() ) {
formula->setDocumentPosition( position.x(), position.y()+formula->baseline() );
}
}
int KWFormulaFrameSet::floatingFrameBaseline( int /*frameNum*/ )
{
if ( !m_frames.isEmpty() )
{
return m_doc->ptToLayoutUnitPixY( formula->baseline() );
}
return -1;
}
void KWFormulaFrameSet::setAnchorFormat( KoTextFormat* format, int /*frameNum*/ )
{
if ( !m_frames.isEmpty() ) {
formula->setFontSizeDirect( format->pointSize() );
}
}
TQPixmap* KWFormulaFrameSet::m_bufPixmap = 0;
// stolen from KWDocument
// However, I don't see if a formula frame can be an underlying
// frame. That is why I use my own buffer.
TQPixmap* KWFormulaFrameSet::doubleBufferPixmap( const TQSize& s )
{
if ( !m_bufPixmap ) {
int w = TQABS( s.width() );
int h = TQABS( s.height() );
m_bufPixmap = new TQPixmap( w, h );
} else {
if ( m_bufPixmap->width() < s.width() ||
m_bufPixmap->height() < s.height() ) {
m_bufPixmap->resize( TQMAX( s.width(), m_bufPixmap->width() ),
TQMAX( s.height(), m_bufPixmap->height() ) );
}
}
return m_bufPixmap;
}
KWFormulaFrameSetEdit::KWFormulaFrameSetEdit(KWFormulaFrameSet* fs, KWCanvas* canvas)
: KWFrameSetEdit(fs, canvas)
{
formulaView = new KFormula::View( fs->getFormula() );
connect( formulaView, TQT_SIGNAL( cursorChanged( bool, bool ) ),
this, TQT_SLOT( cursorChanged( bool, bool ) ) );
connect( fs->getFormula(), TQT_SIGNAL( leaveFormula( Container*, FormulaCursor*, int ) ),
this, TQT_SLOT( slotLeaveFormula( Container*, FormulaCursor*, int ) ) );
fs->m_edit = this;
m_canvas->gui()->getView()->showFormulaToolbar(true);
focusInEvent();
dcop=0;
}
DCOPObject* KWFormulaFrameSetEdit::dcopObject()
{
if ( !dcop )
dcop = new KWordFormulaFrameSetEditIface( this );
return dcop;
}
KWFormulaFrameSetEdit::~KWFormulaFrameSetEdit()
{
formulaFrameSet()->m_edit = 0;
focusOutEvent();
// this causes a core dump on quit
m_canvas->gui()->getView()->showFormulaToolbar(false);
delete formulaView;
formulaView = 0;
formulaFrameSet()->getFormula()->startEvaluation();
formulaFrameSet()->setChanged();
m_canvas->repaintChanged( formulaFrameSet(), true );
delete dcop;
}
const KFormula::View* KWFormulaFrameSetEdit::getFormulaView() const { return formulaView; }
KFormula::View* KWFormulaFrameSetEdit::getFormulaView() { return formulaView; }
void KWFormulaFrameSetEdit::keyPressEvent( TQKeyEvent* event )
{
//kdDebug(32001) << "KWFormulaFrameSetEdit::keyPressEvent" << endl;
formulaView->keyPressEvent( event );
}
void KWFormulaFrameSetEdit::mousePressEvent( TQMouseEvent* event,
const TQPoint&,
const KoPoint& pos )
{
// [Note that this method is called upon RMB and MMB as well, now]
KoPoint tl = m_currentFrame->topLeft();
formulaView->mousePressEvent( event, pos-tl );
}
void KWFormulaFrameSetEdit::mouseMoveEvent( TQMouseEvent* event,
const TQPoint&,
const KoPoint& pos )
{
KoPoint tl = m_currentFrame->topLeft();
formulaView->mouseMoveEvent( event, pos-tl );
}
void KWFormulaFrameSetEdit::mouseReleaseEvent( TQMouseEvent* event,
const TQPoint&,
const KoPoint& pos )
{
KoPoint tl = m_currentFrame->topLeft();
formulaView->mouseReleaseEvent( event, pos-tl );
}
void KWFormulaFrameSetEdit::focusInEvent()
{
//kdDebug(32001) << "KWFormulaFrameSetEdit::focusInEvent" << endl;
if ( formulaView != 0 ) {
formulaView->focusInEvent(0);
}
}
void KWFormulaFrameSetEdit::focusOutEvent()
{
//kdDebug(32001) << "KWFormulaFrameSetEdit::focusOutEvent" <<
//endl;
if ( formulaView != 0 ) {
formulaView->focusOutEvent(0);
}
}
void KWFormulaFrameSetEdit::copy()
{
formulaView->getDocument()->copy();
}
void KWFormulaFrameSetEdit::cut()
{
formulaView->getDocument()->cut();
}
void KWFormulaFrameSetEdit::paste()
{
formulaView->getDocument()->paste();
}
void KWFormulaFrameSetEdit::pasteData( TQMimeSource* /*data*/, int /*provides*/, bool )
{
paste(); // TODO use data, for DnD
}
void KWFormulaFrameSetEdit::selectAll()
{
formulaView->slotSelectAll();
}
void KWFormulaFrameSetEdit::moveHome()
{
formulaView->moveHome( KFormula::WordMovement );
}
void KWFormulaFrameSetEdit::moveEnd()
{
formulaView->moveEnd( KFormula::WordMovement );
}
void KWFormulaFrameSetEdit::removeFormula()
{
if ( formulaFrameSet()->isFloating() ) {
KWCanvas* canvas = m_canvas;
// This call will destroy us! We cannot use 'this' afterwards!
exitRight();
TQKeyEvent keyEvent( TQEvent::KeyPress, Key_Backspace, 0, 0 );
canvas->currentFrameSetEdit()->keyPressEvent( &keyEvent );
}
}
void KWFormulaFrameSetEdit::cursorChanged( bool visible, bool /*selecting*/ )
{
if ( visible ) {
if ( m_currentFrame )
{
// Add the cursor position to the (zoomed) frame position
TQPoint nPoint = frameSet()->kWordDocument()->zoomPoint( m_currentFrame->topLeft() );
nPoint += formulaView->getCursorPoint();
// Apply viewmode conversion
TQPoint p = m_canvas->viewMode()->normalToView( nPoint );
m_canvas->ensureVisible( p.x(), p.y() );
}
}
formulaFrameSet()->setChanged();
m_canvas->repaintChanged( formulaFrameSet(), true );
}
void KWFormulaFrameSetEdit::slotLeaveFormula( KFormula::Container*,
KFormula::FormulaCursor* cursor,
int cmd )
{
kdDebug() << k_funcinfo << endl;
if ( cursor == formulaView->getCursor() ) {
switch ( cmd ) {
case KFormula::Container::EXIT_LEFT:
exitLeft();
break;
case KFormula::Container::EXIT_RIGHT:
exitRight();
break;
case KFormula::Container::EXIT_ABOVE:
exitLeft();
break;
case KFormula::Container::EXIT_BELOW:
exitRight();
break;
case KFormula::Container::REMOVE_FORMULA:
removeFormula();
break;
}
}
}
#include "KWFormulaFrameSet.moc"