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Viewing changes to scidavis/src/TextFormatButtons.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Ruben Molina
  • Date: 2009-09-06 11:34:04 UTC
  • Revision ID: james.westby@ubuntu.com-20090906113404-4awaey82l3686w4q
Tags: upstream-0.2.3
Import upstream version 0.2.3

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scidavis/src/TextFormatButtons.cpp
 
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/***************************************************************************
 
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    File                 : TextFormatButtons.cpp
 
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    Project              : SciDAVis
 
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    --------------------------------------------------------------------
 
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    Copyright            : (C) 2006 by Ion Vasilief, Tilman Benkert
 
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    Email (use @ for *)  : ion_vasilief*yahoo.fr, thzs*gmx.net
 
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    Description          : Widget with text format buttons (connected to a QTextEdit)
 
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 ***************************************************************************/
 
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/***************************************************************************
 
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 *                                                                         *
 
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 *  This program is free software; you can redistribute it and/or modify   *
 
14
 *  it under the terms of the GNU General Public License as published by   *
 
15
 *  the Free Software Foundation; either version 2 of the License, or      *
 
16
 *  (at your option) any later version.                                    *
 
17
 *                                                                         *
 
18
 *  This program is distributed in the hope that it will be useful,        *
 
19
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 
20
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 
21
 *  GNU General Public License for more details.                           *
 
22
 *                                                                         *
 
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 *   You should have received a copy of the GNU General Public License     *
 
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 *   along with this program; if not, write to the Free Software           *
 
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 *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
 
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 *   Boston, MA  02110-1301  USA                                           *
 
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 *                                                                         *
 
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 ***************************************************************************/
 
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#include "TextFormatButtons.h"
 
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#include "SymbolDialog.h"
 
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#include <QTextEdit>
 
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#include <QPushButton>
 
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#include <QHBoxLayout>
 
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#include <QString>
 
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TextFormatButtons::TextFormatButtons(QTextEdit * textEdit, QWidget * parent)
 
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: QWidget(parent)
 
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{
 
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        connectedTextEdit = textEdit;
 
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        QHBoxLayout * layout = new QHBoxLayout(this);
 
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        layout->setMargin(0);
 
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        layout->setSpacing(0);
 
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    layout->addStretch();
 
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        QFont font = this->font();
 
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        font.setPointSize(14);
 
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        buttonCurve = new QPushButton( QPixmap(":/lineSymbol.xpm"), QString());
 
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        buttonCurve->setMaximumWidth(40);
 
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        buttonCurve->setMinimumHeight(35);
 
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        buttonCurve->setFont(font);
 
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        layout->addWidget(buttonCurve);
 
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        buttonSubscript = new QPushButton(QPixmap(":/index.xpm"),QString());
 
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        buttonSubscript->setMaximumWidth(40);
 
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        buttonSubscript->setMinimumHeight(35);
 
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        buttonSubscript->setFont(font);
 
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        layout->addWidget(buttonSubscript);
 
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        buttonSuperscript = new QPushButton(QPixmap(":/exp.xpm"),QString());
 
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        buttonSuperscript->setMaximumWidth(40);
 
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        buttonSuperscript->setMinimumHeight(35);
 
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        buttonSuperscript->setFont(font);
 
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        layout->addWidget(buttonSuperscript);
 
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        buttonLowerGreek = new QPushButton(QString(QChar(0x3B1)));
 
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        buttonLowerGreek->setFont(font);
 
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        buttonLowerGreek->setMaximumWidth(40);
 
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        layout->addWidget(buttonLowerGreek);
 
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        buttonUpperGreek = new QPushButton(QString(QChar(0x393)));
 
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        buttonUpperGreek->setFont(font);
 
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        buttonUpperGreek->setMaximumWidth(40);
 
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        layout->addWidget(buttonUpperGreek);
 
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        buttonMathSymbols = new QPushButton(QString(QChar(0x222B)));
 
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        buttonMathSymbols->setFont(font);
 
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        buttonMathSymbols->setMaximumWidth(40);
 
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        layout->addWidget(buttonMathSymbols);
 
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        buttonArrowSymbols = new QPushButton(QString(QChar(0x2192)));
 
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        buttonArrowSymbols->setFont(font);
 
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        buttonArrowSymbols->setMaximumWidth(40);
 
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        layout->addWidget(buttonArrowSymbols);
 
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        font = this->font();
 
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        font.setBold(true);
 
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        font.setPointSize(14);
 
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        buttonBold = new QPushButton(tr("B","Button bold"));
 
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        buttonBold->setFont(font);
 
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        buttonBold->setMaximumWidth(40);
 
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        layout->addWidget(buttonBold);
 
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        font = this->font();
 
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        font.setItalic(true);
 
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        font.setPointSize(14);
 
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        buttonItalics = new QPushButton(tr("It","Button italics"));
 
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        buttonItalics->setFont(font);
 
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        buttonItalics->setMaximumWidth(40);
 
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        layout->addWidget(buttonItalics);
 
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        font = this->font();
 
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        font.setUnderline(true);
 
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        font.setPointSize(14);
 
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        buttonUnderline = new QPushButton(tr("U","Button underline"));
 
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        buttonUnderline->setFont(font);
 
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        buttonUnderline->setMaximumWidth(40);
 
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        layout->addWidget(buttonUnderline);
 
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    layout->addStretch();
 
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        connect( buttonCurve, SIGNAL(clicked()), this, SLOT(addCurve()) );
 
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        connect( buttonSuperscript, SIGNAL(clicked()), this, SLOT(addSuperscript()) );
 
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        connect( buttonSubscript, SIGNAL(clicked()), this, SLOT(addSubscript()) );
 
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        connect( buttonUnderline, SIGNAL(clicked()), this, SLOT(addUnderline()) );
 
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        connect( buttonItalics, SIGNAL(clicked()), this, SLOT(addItalics()) );
 
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        connect( buttonBold, SIGNAL(clicked()), this, SLOT(addBold()) );
 
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        connect( buttonLowerGreek, SIGNAL(clicked()), this, SLOT(showLowerGreek()) );
 
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        connect( buttonUpperGreek, SIGNAL(clicked()), this, SLOT(showUpperGreek()) );
 
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        connect( buttonMathSymbols, SIGNAL(clicked()), this, SLOT(showMathSymbols()) );
 
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        connect( buttonArrowSymbols, SIGNAL(clicked()), this, SLOT(showArrowSymbols()) );
 
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}
 
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void TextFormatButtons::showLowerGreek()
 
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{
 
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        SymbolDialog *greekLetters = new SymbolDialog(SymbolDialog::lowerGreek, this, Qt::Tool);
 
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        greekLetters->setAttribute(Qt::WA_DeleteOnClose);
 
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        QFont f = connectedTextEdit->font();
 
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        if(f.pointSize()<14)
 
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                f.setPointSize(14);
 
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        greekLetters->setFont(f);
 
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        connect(greekLetters, SIGNAL(addLetter(const QString&)), this, SLOT(addSymbol(const QString&)));
 
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        greekLetters->show();
 
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        greekLetters->setFocus();
 
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}
 
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void TextFormatButtons::showUpperGreek()
 
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{
 
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        SymbolDialog *greekLetters = new SymbolDialog(SymbolDialog::upperGreek, this, Qt::Tool);
 
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        greekLetters->setAttribute(Qt::WA_DeleteOnClose);
 
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        QFont f = connectedTextEdit->font();
 
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        if(f.pointSize()<14)
 
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                f.setPointSize(14);
 
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        greekLetters->setFont(f);
 
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        connect(greekLetters, SIGNAL(addLetter(const QString&)), this, SLOT(addSymbol(const QString&)));
 
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        greekLetters->show();
 
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        greekLetters->setFocus();
 
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}
 
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void TextFormatButtons::showMathSymbols()
 
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{
 
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        SymbolDialog *mathSymbols = new SymbolDialog(SymbolDialog::mathSymbols, this, Qt::Tool);
 
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        mathSymbols->setAttribute(Qt::WA_DeleteOnClose);
 
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        QFont f = connectedTextEdit->font();
 
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        if(f.pointSize()<14)
 
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                f.setPointSize(14);
 
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        mathSymbols->setFont(f);
 
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        connect(mathSymbols, SIGNAL(addLetter(const QString&)), this, SLOT(addSymbol(const QString&)));
 
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        mathSymbols->show();
 
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        mathSymbols->setFocus();
 
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}
 
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void TextFormatButtons::showArrowSymbols()
 
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{
 
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        SymbolDialog *arrowSymbols = new SymbolDialog(SymbolDialog::arrowSymbols, this, Qt::Tool);
 
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        arrowSymbols->setAttribute(Qt::WA_DeleteOnClose);
 
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        arrowSymbols->setFont(connectedTextEdit->font());
 
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        QFont f = connectedTextEdit->font();
 
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        if(f.pointSize()<14)
 
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                f.setPointSize(14);
 
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        arrowSymbols->setFont(f);
 
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        connect(arrowSymbols, SIGNAL(addLetter(const QString&)), this, SLOT(addSymbol(const QString&)));
 
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        arrowSymbols->show();
 
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        arrowSymbols->setFocus();
 
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}
 
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void TextFormatButtons::addSymbol(const QString & letter)
 
182
{
 
183
        connectedTextEdit->textCursor().insertText(letter);
 
184
}
 
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void TextFormatButtons::addCurve()
 
187
{
 
188
        formatText("\\c{","}");
 
189
}
 
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void TextFormatButtons::addUnderline()
 
192
{
 
193
        formatText("<u>","</u>");
 
194
}
 
195
 
 
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void TextFormatButtons::addItalics()
 
197
{
 
198
        formatText("<i>","</i>");
 
199
}
 
200
 
 
201
void TextFormatButtons::addBold()
 
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{
 
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        formatText("<b>","</b>");
 
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}
 
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206
void TextFormatButtons::addSubscript()
 
207
{
 
208
        formatText("<sub>","</sub>");
 
209
}
 
210
 
 
211
void TextFormatButtons::addSuperscript()
 
212
{
 
213
        formatText("<sup>","</sup>");
 
214
}
 
215
 
 
216
void TextFormatButtons::formatText(const QString & prefix, const QString & postfix)
 
217
{
 
218
        QTextCursor cursor = connectedTextEdit->textCursor();
 
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        QString markedText = cursor.selectedText();
 
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        cursor.insertText(prefix+markedText+postfix);
 
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        if(markedText.isEmpty())
 
222
        {
 
223
                // if no text is marked, place cursor inside the <..></..> statement
 
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                // instead of after it
 
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                cursor.movePosition(QTextCursor::PreviousCharacter,QTextCursor::MoveAnchor,postfix.size());
 
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                // the next line makes the selection visible to the user
 
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                // (the line above only changes the selection in the
 
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                // underlying QTextDocument)
 
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                connectedTextEdit->setTextCursor(cursor);
 
230
        }
 
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        // give focus back to text edit
 
232
        connectedTextEdit->setFocus();
 
233
}
 
234
 
 
235
void TextFormatButtons::toggleCurveButton(bool enable)
 
236
{
 
237
        buttonCurve->setVisible(enable);
 
238
}