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/* This file is part of the KDE project
Copyright 1999-2006 The KSpread Team <calligra-devel@kde.org>
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 "ExternalEditor.h"
// KSpread
#include "CellEditor.h"
#include "CellToolBase.h"
#include "FormulaEditorHighlighter.h"
#include "Map.h"
#include "Sheet.h"
// Calligra
// KDE
#include <kdebug.h>
// Qt
#include <QApplication>
#include <QFocusEvent>
#include <QKeyEvent>
using namespace Calligra::Sheets;
class ExternalEditor::Private
{
public:
CellToolBase* cellTool;
FormulaEditorHighlighter* highlighter;
bool isArray;
};
ExternalEditor::ExternalEditor(QWidget *parent)
: KTextEdit(parent)
, d(new Private)
{
d->cellTool = 0;
d->highlighter = 0;
d->isArray = false;
setCurrentFont(KGlobalSettings::generalFont());
// Try to immitate KLineEdit regarding the margins and size.
document()->setDocumentMargin(1);
setMinimumHeight(fontMetrics().height() + 2 * frameWidth() + 1);
connect(this, SIGNAL(textChanged()), this, SLOT(slotTextChanged()));
connect(this, SIGNAL(cursorPositionChanged()),
this, SLOT(slotCursorPositionChanged()));
}
ExternalEditor::~ExternalEditor()
{
delete d->highlighter;
delete d;
}
QSize ExternalEditor::sizeHint() const
{
return KTextEdit::sizeHint(); // document()->size().toSize();
}
void ExternalEditor::setCellTool(CellToolBase* cellTool)
{
d->cellTool = cellTool;
d->highlighter = new FormulaEditorHighlighter(this, cellTool->selection());
}
void ExternalEditor::applyChanges()
{
Q_ASSERT(d->cellTool);
d->cellTool->deleteEditor(true, d->isArray); // save changes
d->isArray = false;
}
void ExternalEditor::discardChanges()
{
Q_ASSERT(d->cellTool);
clear();
d->cellTool->deleteEditor(false); // discard changes
d->cellTool->selection()->update();
}
void ExternalEditor::setText(const QString &text)
{
Q_ASSERT(d->cellTool);
if (toPlainText() == text) {
return;
}
// This method is called from the embedded editor. Do not send signals back.
blockSignals(true);
KTextEdit::setPlainText(text);
QTextCursor textCursor = this->textCursor();
textCursor.setPosition(d->cellTool->editor()->cursorPosition());
setTextCursor(textCursor);
blockSignals(false);
}
void ExternalEditor::keyPressEvent(QKeyEvent *event)
{
Q_ASSERT(d->cellTool);
if (!d->cellTool->selection()->activeSheet()->map()->isReadWrite()) {
return;
}
// Create the embedded editor, if necessary.
if (!d->cellTool->editor()) {
d->cellTool->createEditor(false /* keep content */, false /* no focus */);
}
// the Enter and Esc key are handled by the embedded editor
if ((event->key() == Qt::Key_Return) || (event->key() == Qt::Key_Enter) ||
(event->key() == Qt::Key_Escape)) {
d->cellTool->editor()->widget()->setFocus();
QApplication::sendEvent(d->cellTool->editor()->widget(), event);
event->accept();
return;
}
// call inherited handler
KTextEdit::keyPressEvent(event);
}
void ExternalEditor::focusInEvent(QFocusEvent* event)
{
Q_ASSERT(d->cellTool);
// If the focussing is user induced.
if (event->reason() != Qt::OtherFocusReason) {
kDebug() << "induced by user";
d->cellTool->setLastEditorWithFocus(CellToolBase::ExternalEditor);
}
// when the external editor gets focus, create also the internal editor
// this in turn means that ranges will be instantly highlighted right
if (!d->cellTool->editor())
d->cellTool->createEditor(false /* keep content */, false /* no focus */);
KTextEdit::focusInEvent(event);
}
void ExternalEditor::focusOutEvent(QFocusEvent* event)
{
Q_ASSERT(d->cellTool);
KTextEdit::focusOutEvent(event);
}
void ExternalEditor::slotTextChanged()
{
if (!hasFocus()) return; // only report change if we have focus
emit textChanged(toPlainText());
// Update the cursor position again, because this slot is invoked after
// slotCursorPositionChanged().
if (d->cellTool->editor()) {
d->cellTool->editor()->setCursorPosition(textCursor().position());
}
}
void ExternalEditor::slotCursorPositionChanged()
{
if (!hasFocus() || !d->cellTool->editor()) {
return;
}
// Suppress updates, if this slot got invoked by a text change. It is done
// later by slotTextChanged().
if (d->cellTool->editor()->toPlainText() == toPlainText()) {
d->cellTool->editor()->setCursorPosition(textCursor().position());
}
}
#include "ExternalEditor.moc"
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