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abstractTool.cpp
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abstractTool.cpp
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/** This file is part of project comment
*
* File: abstractTool.cpp
* Created: 2008-10-17
* Author: Jonathan Verner <[email protected]>
* License: GPL v2 or later
*
* Copyright (C) 2010 Jonathan Verner <[email protected]>
*
* 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 "abstractTool.h"
#include "myToolTip.h"
#include "pageView.h"
#include "pdfScene.h"
#include "toolBox.h"
#include "pdfUtil.h"
#include "renderTeX.h"
#include "propertyTab.h"
#include <QtGui/QStackedWidget>
#include <QtGui/QGraphicsScene>
#include <QtGui/QGraphicsSceneMouseEvent>
#include <QtGui/QGraphicsSceneHoverEvent>
#include <QtGui/QPainter>
#include <QtGui/QStyleOptionGraphicsItem>
#include <QtGui/QLabel>
#include <QtGui/QAction>
#include <QtGui/QMenu>
#include <QtGui/QTextEdit>
#include <QtGui/QTabWidget>
#include <QtCore/QDebug>
#include <QtCore/QByteArray>
#include <QtCore/QDataStream>
#include <podofo/podofo.h>
enum abstractAnnotation::eAnnotationTypes PoDoFoToType( PoDoFo::EPdfAnnotation podofoTyp);
enum PoDoFo::EPdfAnnotation PdfToPoDoFoType(abstractAnnotation::eAnnotationTypes t);
void abstractTool::nextEditorTab() {
int cur_pos = editor->currentIndex(), max = editor->count();
cur_pos++;
if ( cur_pos >= max ) cur_pos = 0;
editor->setCurrentIndex( cur_pos );
}
void abstractTool::prevEditorTab() {
int cur_pos = editor->currentIndex(), max = editor->count();
cur_pos--;
if ( cur_pos < 0 ) cur_pos = max-1;
editor->setCurrentIndex( cur_pos );
}
abstractTool::abstractTool( pdfScene *Scene, toolBox *ToolBar, QStackedWidget *EditArea ):
editArea(EditArea), scene(Scene), toolBar(ToolBar), currentEditItem( NULL ) {
cntxMenu = new QMenu();
contentEdit = new QTextEdit( EditArea );
propertyEdit = new propertyTab( EditArea );
editor = new QTabWidget( EditArea );
editor->addTab( contentEdit, QString( "Content" ) );
editor->addTab( propertyEdit, QString( "Properties" ) );
QAction *rightTab = new QAction( editor ), *leftTab = new QAction( editor );
QAction *closeEdit = new QAction( editor );
rightTab->setShortcut((QString) "Ctrl+.");
leftTab->setShortcut((QString) "Ctrl+,");
closeEdit->setShortcut((QString) "Esc");
editor->addAction( rightTab );
editor->addAction( leftTab );
editor->addAction( closeEdit );
connect( rightTab, SIGNAL( triggered() ), this, SLOT( nextEditorTab() ) );
connect( leftTab, SIGNAL( triggered() ), this, SLOT( prevEditorTab() ) );
connect( closeEdit, SIGNAL( triggered() ), this, SLOT( hideEditor() ) );
connect( propertyEdit, SIGNAL( authorChanged() ), this, SLOT( updateAuthor() ) );
connect( propertyEdit, SIGNAL( colorChanged() ), this, SLOT( updateColor() ) );
connect( contentEdit, SIGNAL( textChanged() ), this, SLOT( updateContent() ) );
editArea->addWidget( editor );
renderer = new renderTeX;
QAction *delAct = cntxMenu->addAction( "Delete" );
QAction *proAct = cntxMenu->addAction( "Properties...");
connect( delAct, SIGNAL( triggered() ), this, SLOT( deleteCurrentAnnotation() ) );
connect( proAct, SIGNAL( triggered() ), this, SLOT( editCurrentAnnotationProperties() ) );
connect( renderer, SIGNAL( itemReady(int) ), this, SLOT( teXToolTipReady(int) ) );
}
abstractTool::~abstractTool() {
editArea->removeWidget( editor );
toolBar->removeTool( this );
if ( editor ) delete editor;
}
void abstractTool::updateContent() {
if ( ! currentEditItem ) return;
currentEditItem->setContent( contentEdit->toPlainText() );
}
void abstractTool::updateAuthor() {
if ( ! currentEditItem ) return;
qDebug() << "updating Author to ..." << propertyEdit->getAuthor() << "\n";
currentEditItem->setAuthor( propertyEdit->getAuthor() );
}
void abstractTool::updateColor() {
if ( ! currentEditItem ) return;
qDebug() << "updating Color to ..." << propertyEdit->getColor() << "\n";
currentEditItem->setColor( propertyEdit->getColor() );
}
void abstractAnnotation::setContent( QString Content ) {
content = Content;
setMyToolTip( content );
}
int abstractTool::getApproxWidth( QString text ) {
QLabel label( text );
qreal mm = (label.width()/72)*10;
return qRound(mm);
}
void abstractTool::setTeXToolTip( abstractAnnotation *annot ) {
QString content = annot->getContent();
if ( content.contains( "$" ) ) {
int id = renderer->addItem( content );
if ( id < int2annot.size() ) int2annot[id] = annot;
else {
int2annot.resize( id + 10 );
int2annot[id] = annot;
}
renderer->preRender( id, false, getApproxWidth( content ) );
}
}
void abstractTool::teXToolTipReady( int annotID ) {
int2annot[annotID]->setMyToolTip( renderer->render( annotID, false, 1.5 ) );
renderer->deleteItem( annotID );
}
void abstractTool::deleteCurrentAnnotation() {
if ( currentEditItem ) {
scene->removeItem( currentEditItem );
delete currentEditItem;
if ( editArea->isVisible() ) editArea->hide();
}
currentEditItem = NULL;
}
void abstractTool::hideEditor() {
if ( editArea ) editArea->hide();
}
void abstractTool::editCurrentAnnotationProperties() {
qDebug() << "Editing properties...";
prepareEditItem( currentEditItem );
editArea->setCurrentWidget(propertyEdit);
}
QMenu *abstractTool::contextMenu( QGraphicsItem *it ) {
currentEditItem = dynamic_cast<abstractAnnotation*>(it);
return cntxMenu;
}
/* Called by an item, which wants to be edited. The item passes
* * a reference to itself */
void abstractTool::editItem( abstractAnnotation *item ) {
if ( currentEditItem == item ) finishEditing();
else prepareEditItem( item );
}
void abstractTool::prepareEditItem(abstractAnnotation* item) {
currentEditItem = item;
editArea->setCurrentWidget( editor );
editArea->show();
propertyEdit->setAuthor( item->getAuthor() );
propertyEdit->setColor( item->getColor() );
contentEdit->setText( item->getContent() );
contentEdit->setFocus();
editor->setCurrentIndex( 0 );
}
void abstractTool::finishEditing() {
qDebug() << "abstractTool::finishEditing()...";
if ( currentEditItem ) {
editArea->hide();
setTeXToolTip( currentEditItem );
currentEditItem = NULL;
}
}
bool abstractTool::handleEvent( viewEvent *ev ) {
if ( ev->type() == viewEvent::VE_MOUSE_RELEASE && ( ev->btnCaused() == Qt::LeftButton ) ) {
QPointF pos=ev->scenePos(), delta = ev->sceneDelta();
if ( ev->isClick() ) {
qDebug() << "Single click...";
abstractAnnotation *annot = ev->topItem();
if ( annot ) annot->editSelf();
else newActionEvent( &pos );
return true;
}
} if ( ev->type() == viewEvent::VE_MOUSE_MOVE && currentEditItem ) {
qDebug() << "Should finish editing";
currentEditItem->finishEditing();
return true;
} else return false;
}
QMenu *abstractAnnotation::contextMenu() {
return myTool->contextMenu( this );
}
QColor abstractTool::setColor(const QColor &col) {
color = col;
}
abstractAnnotation::abstractAnnotation( abstractTool *tool ):
myTool( tool ), date( QDate::currentDate() ), time( QTime::currentTime() ), haveToolTip(false), showingToolTip(false), movable( true )
{
setAcceptsHoverEvents( true );
setAuthor( tool->getAuthor() );
setColor( tool->getColor() );
connect( this, SIGNAL(needKeyFocus(bool)), tool, SIGNAL(needKeyFocus(bool)) );
}
abstractAnnotation::abstractAnnotation( abstractTool *tool, PoDoFo::PdfAnnotation *annot, pdfCoords *transform ):
myTool( tool ), haveToolTip( false ), showingToolTip( false ), movable( true ), annotationRect(0,0,0,0), annotType(eNone)
{
setAcceptsHoverEvents( true );
setColor( tool->getColor() );
setAuthor( tool->getAuthor() );
if ( annot ) {
loadInfoFromPDF( annot, transform );
setPos( annotationRect.topLeft() );
tool->setTeXToolTip( this );
qDebug() << "Loaded annotation " << getContent();
}
}
void abstractAnnotation::setMyToolTip(const QPixmap &pixMap) {
setAcceptsHoverEvents(true);
haveToolTip = true;
tp = pixmap;
toolTipPixMap = pixMap;
if ( showingToolTip ) myToolTip::update( pixMap );
}
void abstractAnnotation::setMyToolTip(const QString &richText) {
setAcceptsHoverEvents(true);
haveToolTip = true;
tp = text;
toolTipRichText = richText;
if ( showingToolTip ) myToolTip::update( richText );
}
bool abstractAnnotation::editSelf() {
myTool->editItem( this );
return true;
}
void abstractAnnotation::finishEditing() {
qDebug() << "Finish editing...";
myTool->finishEditing();
}
bool abstractAnnotation::hasToolTip() {
if ( haveToolTip ) {
if ( tp == text && toolTipRichText.size() < 1 ) return false;
return true;
}
return false;
}
bool abstractAnnotation::showToolTip( const QPoint &scPos ) {
qDebug() << "Showing Tooltip";
if ( haveToolTip ) {
switch( tp ) {
case pixmap:
myToolTip::showPixmap(scPos, toolTipPixMap );
showingToolTip = true;
return true;
break;
case text:
if ( toolTipRichText.size() < 1 ) return false;
myToolTip::showText(scPos, toolTipRichText );
showingToolTip = true;
return true;
break;
}
}
return false;
}
void abstractAnnotation::hideToolTip() {
qDebug() << "Hiding Tooltip";
myToolTip::hide();
showingToolTip = false;
myTool->editArea->hide();
}
void abstractAnnotation::setIcon(const QPixmap &icn) {
if ( ! ( icn.rect() == icon.rect() ) ) prepareGeometryChange();
icon = icn;
update( icon.rect() );
}
QRectF abstractAnnotation::boundingRect() const {
return (QRectF) icon.rect();
}
void abstractAnnotation::paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget ) {
painter->drawPixmap( option->exposedRect, icon, option->exposedRect );
}
enum abstractAnnotation::eAnnotationTypes abstractAnnotation::getTypeFromPoDoFo(const PoDoFo::PdfAnnotation* annot) {
if ( annot ) {
return PoDoFoToType( annot->GetType() );
} else return eNone;
}
enum abstractAnnotation::eAnnotationTypes PoDoFoToType( PoDoFo::EPdfAnnotation podofoTyp) {
switch( podofoTyp ) {
case PoDoFo::ePdfAnnotation_Squiggly:
return abstractAnnotation::eSquiggly;
case PoDoFo::ePdfAnnotation_Underline:
return abstractAnnotation::eUnderline;
case PoDoFo::ePdfAnnotation_StrikeOut:
return abstractAnnotation::eStrikeOut;
case PoDoFo::ePdfAnnotation_Highlight:
return abstractAnnotation::eHilight;
case PoDoFo::ePdfAnnotation_Text:
return abstractAnnotation::eText;
case PoDoFo::ePdfAnnotation_Link:
return abstractAnnotation::eLink;
case PoDoFo::ePdfAnnotation_FreeText:
return abstractAnnotation::eFreeText;
default:
return abstractAnnotation::eNone;
}
}
enum PoDoFo::EPdfAnnotation PdfToPoDoFoType(abstractAnnotation::eAnnotationTypes t) {
switch( t ) {
case abstractAnnotation::eHilight:
return PoDoFo::ePdfAnnotation_Highlight;
case abstractAnnotation::eSquiggly:
return PoDoFo::ePdfAnnotation_Squiggly;
case abstractAnnotation::eUnderline:
return PoDoFo::ePdfAnnotation_Underline;
case abstractAnnotation::eStrikeOut:
return PoDoFo::ePdfAnnotation_StrikeOut;
case abstractAnnotation::eLink:
return PoDoFo::ePdfAnnotation_Link;
case abstractAnnotation::eText:
return PoDoFo::ePdfAnnotation_Text;
case abstractAnnotation::eFreeText:
return PoDoFo::ePdfAnnotation_FreeText;
default:
return PoDoFo::ePdfAnnotation_Unknown;
}
}
void abstractAnnotation::loadInfoFromPDF(PoDoFo::PdfAnnotation* annot, pdfCoords *transform ) {
try {
setAuthor( pdfUtil::pdfStringToQ( annot->GetTitle() ) );
setContent( pdfUtil::pdfStringToQ( annot->GetContents() ) );
setColor( pdfUtil::pdfColorToQ( annot->GetColor() ) );
annotType = PoDoFoToType( annot->GetType() );
PoDoFo::PdfRect ps = annot->GetRect();
annotationRect = transform->pdfRectToScene( &ps );
/* Get the implementation data */
{
PoDoFo::PdfObject *dict = annot->GetObject()->GetDictionary().GetKey(PoDoFo::PdfName("CommentData"));
PoDoFo::PdfStream *pdfStream;
if ( dict && dict->HasStream() ) {
char *pBuffer;
PoDoFo::pdf_long len;
pdfStream = dict->GetStream();
pdfStream->GetCopy( &pBuffer, &len );
QByteArray serialized_data( pBuffer, len );
QDataStream stream(&serialized_data, QIODevice::ReadOnly);
stream.setVersion(QDataStream::Qt_4_7);
try {
stream >> implementationData;
} catch (...) {
qDebug() << "Error reading implementation data";
}
}
}
} catch ( PoDoFo::PdfError error ) {
qWarning() << "Error reading annotation properties:" << error.what();
}
}
void abstractAnnotation::saveInfo2PDF( PoDoFo::PdfAnnotation *annot ) {
try {
annot->SetOpen( false );
annot->SetContents( pdfUtil::qStringToPdf( getContent() ) );
annot->SetTitle( pdfUtil::qStringToPdf( getAuthor() ) );
annot->SetFlags( 0 ); // unset all flags to allow everything
annot->SetBorderStyle( 0, 0, 0 );
annot->SetColor( color.redF(), color.greenF(), color.blueF() );
// Save private data into the CommentData subdictionary of the
// Annotation dictionary
if ( implementationData.size() > 0 )
{
PoDoFo::PdfObject commentDataDict;
PoDoFo::PdfMemStream pdfStream( &commentDataDict );
QByteArray serialized_data;
QDataStream stream(&serialized_data, QIODevice::WriteOnly);
stream.setVersion(QDataStream::Qt_4_7);
stream << implementationData;
pdfStream.Set(serialized_data.data());
/* this is for testing purposes only,
* not used anywhere */
commentDataDict.GetDictionary().AddKey(PoDoFo::PdfName("Version"),PoDoFo::PdfString("v0.1"));
annot->GetObject()->GetDictionary().AddKey(PoDoFo::PdfName("CommentData"),commentDataDict);
}
} catch ( PoDoFo::PdfError error ) {
qWarning() << "Error setting annotation properties:" << error.what();
}
}
PoDoFo::PdfAnnotation* abstractAnnotation::saveToPdfPage(PoDoFo::PdfDocument* document, PoDoFo::PdfPage* pg, pdfCoords* coords) {
PoDoFo::PdfRect *brect = coords->sceneToPdf( mapToParent(boundingRect()).boundingRect() );
PoDoFo::PdfAnnotation *annot = pg->CreateAnnotation( PdfToPoDoFoType( annotType ), *brect );
saveInfo2PDF( annot );
delete brect;
return annot;
}
#include "abstractTool.moc"