1 files changed, 174 insertions, 0 deletions
diff --git a/lib/kformula/symbolaction.cc b/lib/kformula/symbolaction.cc
new file mode 100644
index 00000000..7939f231
--- /dev/null
+++ b/lib/kformula/symbolaction.cc
@@ -0,0 +1,174 @@
+/* This file is part of the KDE project
+   Copyright (C) 2002 Heinrich Kuettler <heinrich.kuettler@gmx.de>
+
+   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 <qlistbox.h>
+#include <qpainter.h>
+
+#include <kapplication.h>
+#include <kcombobox.h>
+#include <kglobalsettings.h>
+#include <ktoolbar.h>
+#include <kdebug.h>
+
+#include "symbolaction.h"
+
+/*
+ * The items for the SymbolCombos. *
+ */
+
+KFORMULA_NAMESPACE_BEGIN
+
+class SymbolComboItem : public QListBoxItem
+{
+public:
+    SymbolComboItem( const QString&, const QFont& , QChar, QComboBox* combo );
+    virtual ~SymbolComboItem();
+
+    virtual int width( const QListBox* ) const;
+    virtual int height( const QListBox* ) const;
+
+protected:
+    virtual void paint( QPainter *p );
+
+private:
+    QComboBox *m_combo;
+    QString m_name;
+    QFont m_font;
+    QChar m_symbol;
+
+    static int widest;
+};
+
+int SymbolComboItem::widest = 0;
+
+SymbolComboItem::SymbolComboItem( const QString &name, const QFont& font, 
+                                  QChar symbol, QComboBox *combo )
+    : QListBoxItem( combo->listBox() ),
+      m_combo( combo ),
+      m_name( name ),
+      m_font( font ),
+      m_symbol( symbol )
+{
+    setText( name );
+    int charWidth = QFontMetrics( m_font ).width( QChar( m_symbol ) );
+    widest = QMAX( widest, charWidth );
+}
+
+SymbolComboItem::~SymbolComboItem()
+{
+}
+
+int SymbolComboItem::width( const QListBox * /*lb*/ ) const
+{
+    return widest + QFontMetrics( KGlobalSettings::generalFont() ).width( text() ) + 12;
+}
+
+int SymbolComboItem::height( const QListBox * /*lb*/ ) const
+{
+    int generalHeight = QFontMetrics( KGlobalSettings::generalFont() ).lineSpacing();
+    int fontHeight = QFontMetrics( m_font ).lineSpacing();
+    return QMAX( generalHeight, fontHeight ) + 2;
+}
+
+void SymbolComboItem::paint( QPainter *p )
+{
+    p->setFont( m_font );
+    QFontMetrics fm( p->fontMetrics() );
+    p->drawText( 3, fm.ascent() + fm.leading() / 2,
+                 QString( "%1" ).arg( QChar( m_symbol ) ) );
+
+    p->setFont( KGlobalSettings::generalFont() );
+    fm = p->fontMetrics();
+    p->drawText( widest + 6, height( m_combo->listBox() ) / 2 + fm.strikeOutPos(), m_name );
+}
+
+/*
+ * The symbol action *
+ */
+SymbolAction::SymbolAction( QObject* parent, const char* name )
+    : KSelectAction( parent, name )
+{
+    setEditable( FALSE );
+}
+
+SymbolAction::SymbolAction( const QString& text, const KShortcut& cut,
+                            const QObject* receiver, const char* slot,
+                            QObject* parent, const char* name )
+    : KSelectAction( text, cut, receiver, slot, parent, name )
+{
+    setEditable( FALSE );
+}
+
+int SymbolAction::plug( QWidget* w, int index )
+{
+    if (kapp && !kapp->authorizeKAction(name()))
+        return -1;
+    if ( w->inherits( "KToolBar" ) )
+    {
+        KToolBar* bar = static_cast<KToolBar*>( w );
+        int id_ = KAction::getToolButtonID();
+        KComboBox *cb = new KComboBox( bar );
+        connect( cb, SIGNAL( activated( const QString & ) ),
+                 SLOT( slotActivated( const QString & ) ) );
+        cb->setEnabled( isEnabled() );
+        bar->insertWidget( id_, comboWidth(), cb, index );
+        cb->setMinimumWidth( cb->sizeHint().width() );
+
+        addContainer( bar, id_ );
+
+        connect( bar, SIGNAL( destroyed() ), this, SLOT( slotDestroyed() ) );
+
+        updateItems( containerCount() - 1 );
+
+        return containerCount() - 1;
+    }
+    else return KSelectAction::plug( w, index );
+}
+
+void SymbolAction::setSymbols( const QStringList &names,
+                               const QFont& font,
+                               const QMemArray<QChar>& chars )
+{
+    m_chars = chars;
+    m_font = font;
+    setItems( names );
+
+    int len = containerCount();
+    for ( int i = 0; i < len; ++i )
+        updateItems( i );
+}
+
+void SymbolAction::updateItems( int id )
+{
+    QWidget *w = container( id );
+    if ( w->inherits( "KToolBar" ) ) {
+        QWidget *r = static_cast<KToolBar*>( w )->getWidget( itemId( id ) );
+        if ( r->inherits( "QComboBox" ) ) {
+            QComboBox *cb = static_cast<QComboBox*>( r );
+            cb->clear();
+
+            for( uint i = 0; i < items().count(); ++i ) {
+                new SymbolComboItem( *items().at( i ), m_font, m_chars.at( i ), cb );
+            }
+            cb->setMinimumWidth( cb->sizeHint().width() );
+        }
+    }
+}
+
+KFORMULA_NAMESPACE_END