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/***********************************************************************
*
* Copyright (C) 2008, 2009, 2010, 2011, 2012 Graeme Gott <graeme@gottcode.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "find_dialog.h"
#include "document.h"
#include "stack.h"
#include <QApplication>
#include <QCheckBox>
#include <QDesktopWidget>
#include <QDialogButtonBox>
#include <QGridLayout>
#include <QLabel>
#include <QLineEdit>
#include <QMessageBox>
#include <QTextEdit>
#include <QPushButton>
#include <QRadioButton>
#include <QSettings>
//-----------------------------------------------------------------------------
FindDialog::FindDialog(Stack* documents)
: QDialog(documents->window(), Qt::WindowTitleHint | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint),
m_documents(documents)
{
// Create widgets
QLabel* find_label = new QLabel(tr("Search for:"), this);
m_find_string = new QLineEdit(this);
m_replace_label = new QLabel(tr("Replace with:"), this);
m_replace_string = new QLineEdit(this);
connect(m_find_string, SIGNAL(textChanged(QString)), this, SLOT(findChanged(QString)));
m_ignore_case = new QCheckBox(tr("Ignore case"), this);
m_whole_words = new QCheckBox(tr("Whole words only"), this);
m_regular_expressions = new QCheckBox(tr("Regular expressions"), this);
connect(m_regular_expressions, SIGNAL(toggled(bool)), m_whole_words, SLOT(setDisabled(bool)));
m_search_backwards = new QRadioButton(tr("Search up"), this);
QRadioButton* search_forwards = new QRadioButton(tr("Search down"), this);
search_forwards->setChecked(true);
// Create buttons
QDialogButtonBox* buttons = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, this);
connect(buttons, SIGNAL(rejected()), this, SLOT(reject()));
m_find_button = buttons->addButton(tr("&Find"), QDialogButtonBox::ActionRole);
m_find_button->setEnabled(false);
connect(m_find_button, SIGNAL(clicked()), this, SLOT(find()));
m_replace_button = buttons->addButton(tr("&Replace"), QDialogButtonBox::ActionRole);
m_replace_button->setEnabled(false);
connect(m_replace_button, SIGNAL(clicked()), this, SLOT(replace()));
m_replace_all_button = buttons->addButton(tr("Replace &All"), QDialogButtonBox::ActionRole);
m_replace_all_button->setEnabled(false);
connect(m_replace_all_button, SIGNAL(clicked()), this, SLOT(replaceAll()));
if (!buttons->button(QDialogButtonBox::Close)->icon().isNull()) {
m_find_button->setIcon(QIcon::fromTheme("edit-find"));
m_replace_button->setIcon(QIcon::fromTheme("edit-find-replace"));
}
// Lay out dialog
QGridLayout* layout = new QGridLayout(this);
layout->setColumnStretch(1, 1);
layout->addWidget(find_label, 0, 0, Qt::AlignRight | Qt::AlignVCenter);
layout->addWidget(m_find_string, 0, 1, 1, 2);
layout->addWidget(m_replace_label, 1, 0, Qt::AlignRight | Qt::AlignVCenter);
layout->addWidget(m_replace_string, 1, 1, 1, 2);
layout->addWidget(m_ignore_case, 2, 1);
layout->addWidget(m_whole_words, 3, 1);
layout->addWidget(m_regular_expressions, 4, 1);
layout->addWidget(m_search_backwards, 2, 2);
layout->addWidget(search_forwards, 3, 2);
layout->addWidget(buttons, 5, 0, 1, 3);
setFixedWidth(sizeHint().width());
// Load settings
QSettings settings;
m_ignore_case->setChecked(!settings.value("FindDialog/CaseSensitive", false).toBool());
m_whole_words->setChecked(settings.value("FindDialog/WholeWords", false).toBool());
m_regular_expressions->setChecked(settings.value("FindDialog/RegularExpressions", false).toBool());
m_search_backwards->setChecked(settings.value("FindDialog/SearchBackwards", false).toBool());
}
//-----------------------------------------------------------------------------
void FindDialog::findNext()
{
find(false);
}
//-----------------------------------------------------------------------------
void FindDialog::findPrevious()
{
find(true);
}
//-----------------------------------------------------------------------------
void FindDialog::reject()
{
QSettings settings;
settings.setValue("FindDialog/CaseSensitive", !m_ignore_case->isChecked());
settings.setValue("FindDialog/WholeWords", m_whole_words->isChecked());
settings.setValue("FindDialog/RegularExpressions", m_regular_expressions->isChecked());
settings.setValue("FindDialog/SearchBackwards", m_search_backwards->isChecked());
QDialog::reject();
}
//-----------------------------------------------------------------------------
void FindDialog::showFindMode()
{
setWindowTitle(tr("Find"));
showMode(false);
}
//-----------------------------------------------------------------------------
void FindDialog::showReplaceMode()
{
setWindowTitle(tr("Replace"));
showMode(true);
}
//-----------------------------------------------------------------------------
void FindDialog::moveEvent(QMoveEvent* event)
{
m_position = pos();
QDialog::moveEvent(event);
}
//-----------------------------------------------------------------------------
void FindDialog::showEvent(QShowEvent* event)
{
if (!m_position.isNull()) {
QRect rect(m_position, sizeHint());
if (QApplication::desktop()->availableGeometry(this).contains(rect)) {
move(m_position);
}
}
QDialog::showEvent(event);
}
//-----------------------------------------------------------------------------
void FindDialog::find()
{
find(m_search_backwards->isChecked());
}
//-----------------------------------------------------------------------------
void FindDialog::findChanged(const QString& text)
{
bool enabled = !text.isEmpty();
m_find_button->setEnabled(enabled);
m_replace_button->setEnabled(enabled);
m_replace_all_button->setEnabled(enabled);
emit findNextAvailable(enabled);
}
//-----------------------------------------------------------------------------
void FindDialog::replace()
{
QString text = m_find_string->text();
if (text.isEmpty()) {
return;
}
QTextEdit* document = m_documents->currentDocument()->text();
QTextCursor cursor = document->textCursor();
Qt::CaseSensitivity cs = m_ignore_case->isChecked() ? Qt::CaseInsensitive : Qt::CaseSensitive;
if (!m_regular_expressions->isChecked()) {
if (QString::compare(cursor.selectedText(), text, cs) == 0) {
cursor.insertText(m_replace_string->text());
document->setTextCursor(cursor);
}
} else {
QRegExp regex(text, cs, QRegExp::RegExp2);
QString match = cursor.selectedText();
if (regex.exactMatch(match)) {
match.replace(regex, m_replace_string->text());
cursor.insertText(match);
document->setTextCursor(cursor);
}
}
find();
}
//-----------------------------------------------------------------------------
void FindDialog::replaceAll()
{
QString text = m_find_string->text();
if (text.isEmpty()) {
return;
}
QRegExp regex(text, !m_ignore_case->isChecked() ? Qt::CaseSensitive : Qt::CaseInsensitive, QRegExp::RegExp2);
QTextDocument::FindFlags flags;
if (!m_ignore_case->isChecked()) {
flags |= QTextDocument::FindCaseSensitively;
}
if (m_whole_words->isChecked()) {
flags |= QTextDocument::FindWholeWords;
}
// Count instances
int found = 0;
QTextEdit* document = m_documents->currentDocument()->text();
QTextCursor cursor = document->textCursor();
cursor.movePosition(QTextCursor::Start);
if (!m_regular_expressions->isChecked()) {
forever {
cursor = document->document()->find(text, cursor, flags);
if (!cursor.isNull()) {
found++;
} else {
break;
}
}
} else {
forever {
cursor = document->document()->find(regex, cursor, flags);
if (!cursor.isNull()) {
found++;
} else {
break;
}
}
}
if (found) {
if (QMessageBox::question(this, tr("Question"), tr("Replace %n instance(s)?", "", found), QMessageBox::Yes | QMessageBox::No) == QMessageBox::No) {
return;
}
} else {
QMessageBox::information(this, tr("Sorry"), tr("Phrase not found."));
return;
}
// Replace instances
QTextCursor start_cursor = document->textCursor();
start_cursor.beginEditBlock();
if (!m_regular_expressions->isChecked()) {
forever {
cursor = document->document()->find(text, cursor, flags);
if (!cursor.isNull()) {
cursor.insertText(m_replace_string->text());
document->setTextCursor(cursor);
} else {
break;
}
}
} else {
forever {
cursor = document->document()->find(regex, cursor, flags);
if (!cursor.isNull()) {
QString match = cursor.selectedText();
match.replace(regex, m_replace_string->text());
cursor.insertText(match);
document->setTextCursor(cursor);
} else {
break;
}
}
}
start_cursor.endEditBlock();
document->setTextCursor(start_cursor);
}
//-----------------------------------------------------------------------------
void FindDialog::find(bool backwards)
{
QString text = m_find_string->text();
if (text.isEmpty()) {
return;
}
QRegExp regex(text, !m_ignore_case->isChecked() ? Qt::CaseSensitive : Qt::CaseInsensitive, QRegExp::RegExp2);
QTextDocument::FindFlags flags;
if (!m_ignore_case->isChecked()) {
flags |= QTextDocument::FindCaseSensitively;
}
if (m_whole_words->isChecked()) {
flags |= QTextDocument::FindWholeWords;
}
if (backwards) {
flags |= QTextDocument::FindBackward;
}
QTextEdit* document = m_documents->currentDocument()->text();
QTextCursor cursor = document->textCursor();
if (!m_regular_expressions->isChecked()) {
cursor = document->document()->find(text, cursor, flags);
} else {
cursor = document->document()->find(regex, cursor, flags);
}
if (cursor.isNull()) {
cursor = document->textCursor();
cursor.movePosition(!backwards ? QTextCursor::Start : QTextCursor::End);
if (!m_regular_expressions->isChecked()) {
cursor = document->document()->find(text, cursor, flags);
} else {
cursor = document->document()->find(regex, cursor, flags);
}
}
if (!cursor.isNull()) {
document->setTextCursor(cursor);
} else {
QMessageBox::information(this, tr("Sorry"), tr("Phrase not found."));
}
}
//-----------------------------------------------------------------------------
void FindDialog::showMode(bool replace)
{
m_replace_label->setVisible(replace);
m_replace_string->setVisible(replace);
m_replace_button->setVisible(replace);
m_replace_all_button->setVisible(replace);
setFixedHeight(sizeHint().height());
if (!m_regular_expressions->isChecked()) {
QString text = m_documents->currentDocument()->text()->textCursor().selectedText().trimmed();
text.remove(0, text.lastIndexOf(QChar(0x2029)) + 1);
if (!text.isEmpty()) {
m_find_string->setText(text);
}
}
m_find_string->setFocus();
show();
activateWindow();
}
//-----------------------------------------------------------------------------
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