Theme Editor: Added an edit menu with a find/replace function (copied from an LGPL library)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27137 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 222 insertions, 0 deletions

diff --git a/utils/themeeditor/findreplace/findreplaceform.cpp b/utils/themeeditor/findreplace/findreplaceform.cpp
new file mode 100644
index 0000000..cd2700f
--- /dev/null
+++ b/utils/themeeditor/findreplace/findreplaceform.cpp
@@ -0,0 +1,222 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * This file has been copied from Lorenzo Bettini, with minor modifications
+ * made available under the LGPL version 3, as the original file was licensed
+ *
+ ****************************************************************************
+ *
+ * Copyright (C) 2009  Lorenzo Bettini <http://www.lorenzobettini.it>
+ * See COPYING file that comes with this distribution
+ */
+
+#include <QtGui>
+#include <QTextEdit>
+#include <QRegExp>
+#include <QSettings>
+
+#include "findreplaceform.h"
+#include "ui_findreplaceform.h"
+
+#define TEXT_TO_FIND "textToFind"
+#define TEXT_TO_REPLACE "textToReplace"
+#define DOWN_RADIO "downRadio"
+#define UP_RADIO "upRadio"
+#define CASE_CHECK "caseCheck"
+#define WHOLE_CHECK "wholeCheck"
+#define REGEXP_CHECK "regexpCheck"
+
+FindReplaceForm::FindReplaceForm(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::FindReplaceForm), textEdit(0)
+{
+    ui->setupUi(this);
+
+    ui->errorLabel->setText("");
+
+    connect(ui->textToFind, SIGNAL(textChanged(QString)), this, SLOT(textToFindChanged()));
+    connect(ui->textToFind, SIGNAL(textChanged(QString)), this, SLOT(validateRegExp(QString)));
+
+    connect(ui->regexCheckBox, SIGNAL(toggled(bool)), this, SLOT(regexpSelected(bool)));
+
+    connect(ui->findButton, SIGNAL(clicked()), this, SLOT(find()));
+    connect(ui->closeButton, SIGNAL(clicked()), parent, SLOT(close()));
+
+    connect(ui->replaceButton, SIGNAL(clicked()), this, SLOT(replace()));
+    connect(ui->replaceAllButton, SIGNAL(clicked()), this, SLOT(replaceAll()));
+}
+
+FindReplaceForm::~FindReplaceForm()
+{
+    delete ui;
+}
+
+void FindReplaceForm::hideReplaceWidgets() {
+    ui->replaceLabel->setVisible(false);
+    ui->textToReplace->setVisible(false);
+    ui->replaceButton->setVisible(false);
+    ui->replaceAllButton->setVisible(false);
+}
+
+void FindReplaceForm::setTextEdit(QPlainTextEdit *textEdit_) {
+    textEdit = textEdit_;
+    connect(textEdit, SIGNAL(copyAvailable(bool)), ui->replaceButton, SLOT(setEnabled(bool)));
+    connect(textEdit, SIGNAL(copyAvailable(bool)), ui->replaceAllButton, SLOT(setEnabled(bool)));
+}
+
+void FindReplaceForm::changeEvent(QEvent *e)
+{
+    QWidget::changeEvent(e);
+    switch (e->type()) {
+    case QEvent::LanguageChange:
+        ui->retranslateUi(this);
+        break;
+    default:
+        break;
+    }
+}
+
+void FindReplaceForm::textToFindChanged() {
+    ui->findButton->setEnabled(ui->textToFind->text().size() > 0);
+}
+
+void FindReplaceForm::regexpSelected(bool sel) {
+    if (sel)
+        validateRegExp(ui->textToFind->text());
+    else
+        validateRegExp("");
+}
+
+void FindReplaceForm::validateRegExp(const QString &text) {
+    if (!ui->regexCheckBox->isChecked() || text.size() == 0) {
+        ui->errorLabel->setText("");
+        return; // nothing to validate
+    }
+
+    QRegExp reg(text,
+                (ui->caseCheckBox->isChecked() ? Qt::CaseSensitive : Qt::CaseInsensitive));
+
+    if (reg.isValid()) {
+        showError("");
+    } else {
+        showError(reg.errorString());
+    }
+}
+
+void FindReplaceForm::showError(const QString &error) {
+    if (error == "") {
+        ui->errorLabel->setText("");
+    } else {
+        ui->errorLabel->setText("<span style=\" font-weight:600; color:#ff0000;\">" +
+                                error +
+                                "</span>");
+    }
+}
+
+void FindReplaceForm::showMessage(const QString &message) {
+    if (message == "") {
+        ui->errorLabel->setText("");
+    } else {
+        ui->errorLabel->setText("<span style=\" font-weight:600; color:green;\">" +
+                                message +
+                                "</span>");
+    }
+}
+
+void FindReplaceForm::find() {
+    find(ui->downRadioButton->isChecked());
+}
+
+void FindReplaceForm::find(bool next) {
+    if (!textEdit)
+        return; // TODO: show some warning?
+
+    // backward search
+    bool back = !next;
+
+    const QString &toSearch = ui->textToFind->text();
+
+    bool result = false;
+
+    QTextDocument::FindFlags flags;
+
+    if (back)
+        flags |= QTextDocument::FindBackward;
+    if (ui->caseCheckBox->isChecked())
+        flags |= QTextDocument::FindCaseSensitively;
+    if (ui->wholeCheckBox->isChecked())
+        flags |= QTextDocument::FindWholeWords;
+
+    if (ui->regexCheckBox->isChecked()) {
+        QRegExp reg(toSearch,
+                    (ui->caseCheckBox->isChecked() ? Qt::CaseSensitive : Qt::CaseInsensitive));
+
+        qDebug() << "searching for regexp: " << reg.pattern();
+
+        textCursor = textEdit->document()->find(reg, textCursor, flags);
+        textEdit->setTextCursor(textCursor);
+        result = (!textCursor.isNull());
+    } else {
+        qDebug() << "searching for: " << toSearch;
+
+        result = textEdit->find(toSearch, flags);
+    }
+
+    if (result) {
+        showError("");
+    } else {
+        showError(tr("no match found"));
+        // move to the beginning of the document for the next find
+        textCursor.setPosition(0);
+        textEdit->setTextCursor(textCursor);
+    }
+}
+
+void FindReplaceForm::replace() {
+    if (!textEdit->textCursor().hasSelection()) {
+        find();
+    } else {
+        textEdit->textCursor().insertText(ui->textToReplace->text());
+        find();
+    }
+}
+
+void FindReplaceForm::replaceAll() {
+    int i=0;
+    while (textEdit->textCursor().hasSelection()){
+        textEdit->textCursor().insertText(ui->textToReplace->text());
+        find();
+        i++;
+    }
+    showMessage(tr("Replaced %1 occurrence(s)").arg(i));
+}
+
+void FindReplaceForm::writeSettings(QSettings &settings, const QString &prefix) {
+    settings.beginGroup(prefix);
+    settings.setValue(TEXT_TO_FIND, ui->textToFind->text());
+    settings.setValue(TEXT_TO_REPLACE, ui->textToReplace->text());
+    settings.setValue(DOWN_RADIO, ui->downRadioButton->isChecked());
+    settings.setValue(UP_RADIO, ui->upRadioButton->isChecked());
+    settings.setValue(CASE_CHECK, ui->caseCheckBox->isChecked());
+    settings.setValue(WHOLE_CHECK, ui->wholeCheckBox->isChecked());
+    settings.setValue(REGEXP_CHECK, ui->regexCheckBox->isChecked());
+    settings.endGroup();
+}
+
+void FindReplaceForm::readSettings(QSettings &settings, const QString &prefix) {
+    settings.beginGroup(prefix);
+    ui->textToFind->setText(settings.value(TEXT_TO_FIND, "").toString());
+    ui->textToReplace->setText(settings.value(TEXT_TO_REPLACE, "").toString());
+    ui->downRadioButton->setChecked(settings.value(DOWN_RADIO, true).toBool());
+    ui->upRadioButton->setChecked(settings.value(UP_RADIO, false).toBool());
+    ui->caseCheckBox->setChecked(settings.value(CASE_CHECK, false).toBool());
+    ui->wholeCheckBox->setChecked(settings.value(WHOLE_CHECK, false).toBool());
+    ui->regexCheckBox->setChecked(settings.value(REGEXP_CHECK, false).toBool());
+    settings.endGroup();
+}