kopete/kopete

krichtexteditpart.cpp

00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2006 Michaël Larouche <larouche@kde.org>
00003    Copyright (C) 2003 Richard Moore <rich@kde.org>
00004    Copyright (c) 2003-2005 Jason Keirstead <jason@keirstead.org>
00005 
00006    This library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Library General Public
00008    License version 2 as published by the Free Software Foundation.
00009 
00010    This library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Library General Public License for more details.
00014 
00015    You should have received a copy of the GNU Library General Public License
00016    along with this library; see the file COPYING.LIB.  If not, write to
00017    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018    Boston, MA 02110-1301, USA.
00019 */
00020 #include "krichtexteditpart.h"
00021 
00022 // Qt includes
00023 #include <QtCore/QEvent>
00024 #include <QKeyEvent>
00025 #include <QtGui/QTextCursor>
00026 #include <QtGui/QTextCharFormat>
00027 
00028 // KDE includes
00029 #include <kaction.h>
00030 #include <kactionmenu.h>
00031 #include <kcolordialog.h>
00032 #include <kconfig.h>
00033 #include <kdebug.h>
00034 #include <kfontaction.h>
00035 #include <kfontdialog.h>
00036 #include <kfontsizeaction.h>
00037 #include <kglobalsettings.h>
00038 #include <kcolorscheme.h>
00039 #include <kicon.h>
00040 #include <kparts/genericfactory.h>
00041 #include <kstandardaction.h>
00042 #include <ktextedit.h>
00043 #include <ktoggleaction.h>
00044 #include <kactioncollection.h>
00045 
00046 typedef KParts::GenericFactory<KRichTextEditPart> KRichTextEditPartFactory;
00047 K_EXPORT_COMPONENT_FACTORY( librichtexteditpart, KRichTextEditPartFactory )
00048 
00049 // Still needed for Qt4 to be able to use the return key as shortcut for sending
00050 class KopeteTextEdit : public KTextEdit
00051 {
00052 public:
00053     KopeteTextEdit( QWidget *parent )
00054      : KTextEdit( parent )
00055     {}
00056 
00057     bool event(QEvent *event)
00058     {
00059         if ( event->type() == QEvent::ShortcutOverride )
00060         {
00061             QKeyEvent *keyEvent = dynamic_cast<QKeyEvent*>(event);
00062             if (keyEvent)
00063             {
00064                 if( keyEvent->key() ==  Qt::Key_Return || keyEvent->key() == Qt::Key_Enter )
00065                 {
00066                     // Enter is the default shortcut for sending a message,
00067                     // therefore it should not be handled by a textedit
00068                     return QWidget::event(event);
00069                 }
00070                 if ( keyEvent->matches(QKeySequence::Copy) && !textCursor().hasSelection() )
00071                 {
00072                     // The copy shortcut has to be handled outside of
00073                     // the textedit because otherwise you cannot use it 
00074                     // to copy a selection in the chatmessagepart
00075                     // see bug: #163535
00076                     return QWidget::event(event);
00077                 }
00078             }
00079         }
00080         return KTextEdit::event(event);
00081     }
00082 };
00083 
00084 class KRichTextEditPart::Private
00085 {
00086 public:
00087     Private()
00088      : editor(0), richTextEnabled(false), richTextSupport(KRichTextEditPart::DisableRichText),
00089         configDirty(false), usingDefault(true), defualtFont(KGlobalSettings::generalFont()),
00090         updating(false)
00091     {}
00092 
00093     KopeteTextEdit *editor;
00094     bool richTextEnabled;
00095     RichTextSupport richTextSupport;
00096 
00097     KAction *checkSpelling;
00098     KToggleAction *enableRichText;
00099 
00100     KAction *actionTextColor;
00101 
00102     bool configDirty;
00103     bool usingDefault;
00104     QColor defualtTextColor;
00105     QFont defualtFont;
00106     QColor desiredTextColor;
00107     QFont desiredFont;
00108 
00109     KToggleAction *action_bold;
00110     KToggleAction *action_italic;
00111     KToggleAction *action_underline;
00112 
00113     KFontAction *action_font;
00114     KFontSizeAction *action_font_size;
00115 
00116     KToggleAction *action_align_left;
00117     KToggleAction *action_align_right;
00118     KToggleAction *action_align_center;
00119     KToggleAction *action_align_justify;
00120 
00121     bool updating;
00122 };
00123 
00124 KRichTextEditPart::KRichTextEditPart(QWidget *wparent, QObject*, const QStringList&)
00125  : KParts::ReadOnlyPart( wparent ), d(new Private)
00126 {
00127     // we need an instance
00128     setComponentData( KRichTextEditPartFactory::componentData() );
00129 
00130     d->editor = new KopeteTextEdit( wparent );
00131     setWidget( d->editor );
00132 
00133     // FIXME: The actions aren't available anywhere!!!
00134     createActions();
00135 
00136     // TODO: Rename rc file
00137     setXMLFile( "kopeterichtexteditpart/kopeterichtexteditpartfull.rc" );
00138 }
00139 
00140 KRichTextEditPart::~KRichTextEditPart()
00141 {
00142     delete d;
00143 }
00144 
00145 KTextEdit *KRichTextEditPart::textEdit()
00146 {
00147     return static_cast<KTextEdit*>(d->editor);
00148 }
00149 
00150 QFont KRichTextEditPart::font() const
00151 {
00152     return d->editor->currentFont();
00153 }
00154 
00155 void KRichTextEditPart::clear()
00156 {
00157     d->editor->clear();
00158 }
00159 
00160 bool KRichTextEditPart::isRichTextEnabled() const
00161 {
00162     return d->richTextEnabled;
00163 }
00164 
00165 bool KRichTextEditPart::isRichTextAvailable() const
00166 {
00167     return (d->richTextSupport & FormattingSupport ||
00168             d->richTextSupport & SupportAlignment ||
00169             d->richTextSupport & SupportFont ||
00170             d->richTextSupport & SupportTextColor);
00171 }
00172 
00173 void KRichTextEditPart::setDefualtFont( const QFont& font )
00174 {
00175     d->defualtFont = font;
00176     if ( d->usingDefault && !d->configDirty )
00177     {
00178         d->desiredFont = d->defualtFont;
00179         updateCharFormat();
00180     }
00181 }
00182 
00183 void KRichTextEditPart::setDefualtTextColor( const QColor& textColor )
00184 {
00185     d->defualtTextColor = textColor;
00186     if ( d->usingDefault && !d->configDirty )
00187     {
00188         d->desiredTextColor = d->defualtTextColor;
00189         updateCharFormat();
00190     }
00191 }
00192 
00193 void KRichTextEditPart::setCheckSpellingEnabled( bool enabled )
00194 {
00195     d->editor->setCheckSpellingEnabled( enabled );
00196 }
00197 
00198 bool KRichTextEditPart::checkSpellingEnabled() const
00199 {
00200     return d->editor->checkSpellingEnabled();
00201 }
00202 
00203 bool KRichTextEditPart::useRichText() const
00204 {
00205     return isRichTextEnabled() && isRichTextAvailable();
00206 }
00207 
00208 void KRichTextEditPart::setRichTextEnabled( bool enable )
00209 {
00210     d->richTextEnabled = enable;
00211     d->editor->setAcceptRichText( useRichText() );
00212 
00213     // Emit toolbarToggled signal
00214     checkToolbarEnabled();
00215 
00216     //Enable / disable buttons
00217     updateActions();
00218 
00219     d->enableRichText->setEnabled( useRichText() );
00220     d->enableRichText->setChecked( useRichText() );
00221 
00222     emit richTextChanged();
00223 }
00224 
00225 void KRichTextEditPart::setRichTextSupport(const KRichTextEditPart::RichTextSupport &support)
00226 {
00227     d->richTextSupport = support;
00228 
00229     // Update to new settings
00230     setRichTextEnabled( isRichTextEnabled() );
00231 }
00232 
00233 void KRichTextEditPart::checkToolbarEnabled()
00234 {
00235     emit toolbarToggled( useRichText() );
00236 }
00237 
00238 KAboutData *KRichTextEditPart::createAboutData()
00239 {
00240     KAboutData *aboutData = new KAboutData("krichtexteditpart", 0, ki18n("KRichTextEditPart"), "0.1",
00241                         ki18n("A simple rich text editor part"),
00242                         KAboutData::License_LGPL );
00243     aboutData->addAuthor(ki18n("Richard J. Moore"), KLocalizedString(), "rich@kde.org", "http://xmelegance.org/" );
00244     aboutData->addAuthor(ki18n("Jason Keirstead"), KLocalizedString(), "jason@keirstead.org", "http://www.keirstead.org/" );
00245     aboutData->addAuthor(ki18n("Michaël Larouche"), KLocalizedString(), "larouche@kde.org" "http://www.tehbisnatch.org/" );
00246 
00247     return aboutData;
00248 }
00249 
00250 void KRichTextEditPart::createActions()
00251 {
00252     d->enableRichText = new KToggleAction( KIcon("draw-freehand"), i18n("Enable &Rich Text"), this );
00253     actionCollection()->addAction( "enableRichText", d->enableRichText );
00254     d->enableRichText->setCheckedState( KGuiItem( i18n("Disable &Rich Text") ) );
00255     connect( d->enableRichText, SIGNAL(toggled(bool)),
00256             this, SLOT(setRichTextEnabled(bool)) );
00257 
00258     d->checkSpelling = new KAction( KIcon("tools-check-spelling"), i18n("Check &Spelling"), actionCollection() );
00259     actionCollection()->addAction( "check_spelling", d->checkSpelling );
00260     connect( d->checkSpelling, SIGNAL(triggered(bool)), d->editor, SLOT(checkSpelling()) );
00261 
00262     //Foreground Color
00263     d->actionTextColor = new KAction( KIcon("color_line"), i18n("Text &Color..."), actionCollection() );
00264     actionCollection()->addAction( "format_textcolor", d->actionTextColor );
00265     connect( d->actionTextColor, SIGNAL(triggered(bool)), this, SLOT(setTextColor()) );
00266 
00267     //Font Family
00268     d->action_font = new KFontAction( i18n("&Font"), actionCollection() );
00269     actionCollection()->addAction( "format_font", d->action_font );
00270     connect( d->action_font, SIGNAL(triggered(QString)), this, SLOT(setFont(QString)) );
00271 
00272     //Font Size
00273     d->action_font_size = new KFontSizeAction( i18n("Font &Size"), actionCollection() );
00274     actionCollection()->addAction( "format_font_size", d->action_font_size );
00275     connect( d->action_font_size, SIGNAL(fontSizeChanged(int)), this, SLOT( setFontSize(int) ) );
00276 
00277     //Formatting
00278     d->action_bold = new KToggleAction( KIcon("format-text-bold"), i18n("&Bold"), actionCollection() );
00279     actionCollection()->addAction( "format_bold", d->action_bold );
00280     d->action_bold->setShortcut( KShortcut(Qt::CTRL + Qt::Key_B) );
00281     connect( d->action_bold, SIGNAL(toggled(bool)), this, SLOT(setFontBold(bool)) );
00282 
00283     d->action_italic = new KToggleAction( KIcon("format-text-italic"), i18n("&Italic"), actionCollection() );
00284     actionCollection()->addAction( "format_italic", d->action_italic );
00285     d->action_italic->setShortcut( KShortcut(Qt::CTRL + Qt::Key_I) );
00286     connect(d->action_italic, SIGNAL(toggled(bool)),
00287         this, SLOT(setFontItalic(bool)) );
00288 
00289     d->action_underline = new KToggleAction( KIcon("format-text-underline"), i18n("&Underline"), actionCollection() );
00290     actionCollection()->addAction( "format_underline", d->action_underline );
00291     d->action_underline->setShortcut( KShortcut(Qt::CTRL + Qt::Key_U) );
00292     connect( d->action_underline, SIGNAL(toggled(bool)),
00293         this, SLOT(setFontUnderline(bool)) );
00294 
00295     // TODO: Port to new Qt4 signals. These are qt4 signals no?
00296     connect( d->editor, SIGNAL(currentCharFormatChanged(QTextCharFormat)),
00297         this, SLOT( updateCharFormat() ) );
00298     updateCharFormat();
00299 
00300     //Alignment
00301     d->action_align_left = new KToggleAction( KIcon("text-left"), i18n("Align &Left"), actionCollection() );
00302     actionCollection()->addAction( "format_align_left", d->action_align_left );
00303     connect( d->action_align_left, SIGNAL(toggled(bool)),
00304         this, SLOT(setAlignLeft(bool)) );
00305 
00306     d->action_align_center = new KToggleAction( KIcon("text-center"), i18n("Align &Center"), actionCollection() );
00307     actionCollection()->addAction( "format_align_center", d->action_align_center );
00308     connect( d->action_align_center, SIGNAL(toggled(bool)),
00309         this, SLOT(setAlignCenter(bool)) );
00310 
00311     d->action_align_right = new KToggleAction( KIcon("text-right"), i18n("Align &Right"), actionCollection() );
00312     actionCollection()->addAction( "format_align_right", d->action_align_right );
00313     connect( d->action_align_right, SIGNAL(toggled(bool)),
00314         this, SLOT(setAlignRight(bool)) );
00315 
00316     d->action_align_justify = new KToggleAction( KIcon("format-justify-fill"), i18n("&Justify"), actionCollection() );
00317     actionCollection()->addAction( "format_align_justify", d->action_align_justify );
00318     connect( d->action_align_justify, SIGNAL(toggled(bool)),
00319         this, SLOT(setAlignJustify(bool)) );
00320 
00321     QActionGroup *alignmentGroup = new QActionGroup(this);
00322     alignmentGroup->addAction(d->action_align_left);
00323     alignmentGroup->addAction(d->action_align_center);
00324     alignmentGroup->addAction(d->action_align_right);
00325     alignmentGroup->addAction(d->action_align_justify);
00326 
00327     connect( d->editor, SIGNAL(cursorPositionChanged()),
00328         this, SLOT(updateAligment()) );
00329 
00330     updateAligment();
00331 }
00332 
00333 void KRichTextEditPart::updateActions()
00334 {
00335     bool useRichText = this->useRichText();
00336 
00337     bool activateAlignment = useRichText && ( d->richTextSupport & KRichTextEditPart::SupportAlignment );
00338     bool activateFont = (d->richTextSupport & KRichTextEditPart::SupportFont);
00339 
00340     d->actionTextColor->setEnabled( useRichText && (d->richTextSupport & KRichTextEditPart::SupportTextColor) );
00341 
00342     d->action_font->setEnabled( useRichText && activateFont);
00343     d->action_font_size->setEnabled( useRichText && activateFont );
00344 
00345     d->action_bold->setEnabled( useRichText && (d->richTextSupport & KRichTextEditPart::SupportBold) );
00346     d->action_italic->setEnabled( useRichText && (d->richTextSupport & KRichTextEditPart::SupportItalic) );
00347     d->action_underline->setEnabled( useRichText && (d->richTextSupport & KRichTextEditPart::SupportUnderline) );
00348 
00349     d->action_align_left->setEnabled( activateAlignment );
00350     d->action_align_center->setEnabled( activateAlignment );
00351     d->action_align_right->setEnabled( activateAlignment );
00352     d->action_align_justify->setEnabled( activateAlignment );
00353 }
00354 
00355 void KRichTextEditPart::updateCharFormat()
00356 {
00357     d->updating = true;
00358     if( d->editor->fontPointSize() > 0 )
00359         d->action_font_size->setFontSize( (int)d->editor->fontPointSize() );
00360     d->action_font->setFont( d->editor->fontFamily() );
00361 
00362     //this "workarounds" KTextEdit edit, to keep the font even when you delete all typed chars
00363     d->editor->setTextColor( d->desiredTextColor );
00364     if( useRichText() )
00365     {
00366         d->editor->setCurrentFont( d->desiredFont );
00367         d->action_bold->setChecked( d->desiredFont.bold() );
00368         d->action_italic->setChecked( d->desiredFont.italic() );
00369         d->action_underline->setChecked( d->desiredFont.underline() );
00370     }
00371     d->updating = false;
00372 }
00373 
00374 void KRichTextEditPart::updateAligment()
00375 {
00376     Qt::Alignment align = d->editor->alignment();
00377 
00378     switch ( align )
00379     {
00380         case Qt::AlignRight:
00381             d->action_align_right->setChecked( true );
00382             break;
00383         case Qt::AlignCenter:
00384             d->action_align_center->setChecked( true );
00385             break;
00386         case Qt::AlignLeft:
00387             d->action_align_left->setChecked( true );
00388             break;
00389         case Qt::AlignJustify:
00390             d->action_align_justify->setChecked( true );
00391             break;
00392         default:
00393             break;
00394     }
00395 }
00396 
00397 void KRichTextEditPart::readConfig( KConfigGroup& config )
00398 {
00399     kDebug() << "Loading config";
00400 
00401     d->usingDefault = ( !config.hasKey("TextColor") && !config.hasKey("Font") );
00402     d->desiredTextColor = config.readEntry( "TextColor", d->defualtTextColor );
00403     d->desiredFont = config.readEntry("Font", d->defualtFont );
00404     updateCharFormat();
00405 
00406     switch( config.readEntry( "EditAlignment", int(Qt::AlignLeft) ) )
00407     {
00408         case Qt::AlignLeft:
00409             d->action_align_left->trigger();
00410             break;
00411         case Qt::AlignCenter:
00412             d->action_align_center->trigger();
00413             break;
00414         case Qt::AlignRight:
00415             d->action_align_right->trigger();
00416             break;
00417         case Qt::AlignJustify:
00418             d->action_align_justify->trigger();
00419             break;
00420     }
00421 
00422     // Clean dirty flag.
00423     d->configDirty = false;
00424 }
00425 
00426 void KRichTextEditPart::writeConfig( KConfigGroup& config )
00427 {
00428     if ( d->configDirty == false )
00429         return;
00430 
00431     kDebug() << "Saving config";
00432 
00433     QFont currentFont = d->editor->currentFont();
00434     config.writeEntry( "Font", currentFont );
00435     config.writeEntry( "TextColor", d->editor->textColor() );
00436     config.writeEntry( "EditAlignment", int(d->editor->alignment()) );
00437     d->usingDefault = false;
00438 
00439     // Clean dirty flag.
00440     d->configDirty = false;
00441 }
00442 
00443 void KRichTextEditPart::resetConfig( KConfigGroup& config )
00444 {
00445     kDebug() << "Setting default font style";
00446 
00447     d->desiredTextColor = d->defualtTextColor;
00448     d->desiredFont = d->defualtFont;
00449     updateCharFormat();
00450 
00451     d->action_align_left->trigger();
00452 
00453     config.deleteEntry( "Font" );
00454     config.deleteEntry( "TextColor" );
00455     config.deleteEntry( "EditAlignment" );
00456 
00457     d->usingDefault = true;
00458     // Set dirty flag.
00459     d->configDirty = false;
00460 }
00461 
00462 void KRichTextEditPart::setTextColor()
00463 {
00464     QColor currentTextColor = d->desiredTextColor;
00465 
00466     int result = KColorDialog::getColor( currentTextColor, KColorScheme(QPalette::Active, KColorScheme::View).foreground().color() , d->editor );
00467     if(!currentTextColor.isValid())
00468         currentTextColor = KColorScheme(QPalette::Active, KColorScheme::View).foreground().color() ;
00469     if ( result != QDialog::Accepted  )
00470         return;
00471 
00472     setTextColor( currentTextColor );
00473 }
00474 
00475 void KRichTextEditPart::setTextColor(const QColor &newColor)
00476 {
00477     if( !d->updating && d->richTextSupport & KRichTextEditPart::SupportTextColor )
00478     {
00479         d->desiredTextColor = newColor;
00480         d->configDirty = true;
00481         updateCharFormat();
00482     }
00483 }
00484 
00485 QColor KRichTextEditPart::textColor() const
00486 {
00487     if( d->editor->textColor() == KColorScheme(QPalette::Active, KColorScheme::View).foreground().color() )
00488         return QColor();
00489     return d->editor->textColor();
00490 }
00491 
00492 void KRichTextEditPart::setFontSize(int size)
00493 {
00494     if( size < 1 )
00495         return;
00496 
00497     if( !d->updating && d->richTextSupport & KRichTextEditPart::SupportFont )
00498     {
00499         d->desiredFont.setPointSize( size );
00500         d->configDirty = true;
00501         updateCharFormat();
00502     }
00503 }
00504 
00505 void KRichTextEditPart::setFont()
00506 {
00507     QFont currentFont = d->desiredFont;
00508     KFontDialog::getFont( currentFont, false, d->editor );
00509     setFont( currentFont );
00510 }
00511 
00512 void KRichTextEditPart::setFont(const QFont &newFont)
00513 {
00514     if( !d->updating && useRichText() )
00515     {
00516         d->desiredFont = newFont;
00517         d->configDirty = true;
00518         updateCharFormat();
00519     }
00520 }
00521 
00522 void KRichTextEditPart::setFont(const QString &newFont)
00523 {
00524     if( !d->updating && (d->richTextSupport & KRichTextEditPart::SupportFont) && useRichText() )
00525     {
00526         d->desiredFont.setFamily( newFont );
00527         d->configDirty = true;
00528         updateCharFormat();
00529     }
00530 }
00531 
00532 
00533 void KRichTextEditPart::setFontBold(bool value)
00534 {
00535     if( !d->updating && (d->richTextSupport & KRichTextEditPart::SupportFont) && useRichText() )
00536     {
00537         d->desiredFont.setBold( value );
00538         d->configDirty = true;
00539         updateCharFormat();
00540     }
00541 }
00542 
00543 void KRichTextEditPart::setFontItalic(bool value)
00544 {
00545     if( !d->updating && (d->richTextSupport & KRichTextEditPart::SupportItalic) && useRichText() )
00546     {
00547         d->desiredFont.setItalic( value );
00548         d->configDirty = true;
00549         updateCharFormat();
00550     }
00551 }
00552 
00553 void KRichTextEditPart::setFontUnderline(bool value)
00554 {
00555     if( !d->updating && (d->richTextSupport & KRichTextEditPart::SupportUnderline) && useRichText()  )
00556     {
00557         d->desiredFont.setUnderline( value );
00558         d->configDirty = true;
00559         updateCharFormat();
00560     }
00561 }
00562 
00563 
00564 void KRichTextEditPart::setAlignLeft( bool yes )
00565 {
00566     if( !d->updating && yes && useRichText() && (d->richTextSupport & KRichTextEditPart::SupportAlignment) )
00567     {
00568         d->editor->setAlignment( Qt::AlignLeft );
00569         d->configDirty = true;
00570     }
00571 }
00572 
00573 void KRichTextEditPart::setAlignRight( bool yes )
00574 {
00575     if( !d->updating && yes && useRichText() && (d->richTextSupport & KRichTextEditPart::SupportAlignment) )
00576     {
00577         d->editor->setAlignment( Qt::AlignRight );
00578         d->configDirty = true;
00579     }
00580 }
00581 
00582 void KRichTextEditPart::setAlignCenter( bool yes )
00583 {
00584     if( !d->updating && yes && useRichText() && (d->richTextSupport & KRichTextEditPart::SupportAlignment) )
00585     {
00586         d->editor->setAlignment( Qt::AlignCenter );
00587         d->configDirty = true;
00588     }
00589 }
00590 
00591 void KRichTextEditPart::setAlignJustify( bool yes )
00592 {
00593     if( !d->updating && yes && useRichText() && (d->richTextSupport & KRichTextEditPart::SupportAlignment) )
00594     {
00595         d->editor->setAlignment( Qt::AlignJustify );
00596         d->configDirty = true;
00597     }
00598 }
00599 
00600 QString KRichTextEditPart::text( Qt::TextFormat format ) const
00601 {
00602     if( (format == Qt::RichText || format == Qt::AutoText) && useRichText() )
00603         return d->editor->toHtml();
00604     else
00605         return d->editor->toPlainText();
00606 }
00607 
00608 #include "krichtexteditpart.moc"
00609 
00610 // kate: space-indent on; indent-width 4; encoding utf-8; replace-tabs on;
kopete/kopete

krichtexteditpart.cpp

kopete/kopete

kdenetwork
