stylesheetdialog.cpp Example File

webenginewidgets/stylesheetbrowser/stylesheetdialog.cpp
/**************************************************************************** ** ** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/
#include "mainwindow.h" #include "stylesheetdialog.h" #include "ui_stylesheetdialog.h" StylesheetDialog::StylesheetDialog(QWidget *parent) : QDialog(parent), ui(new Ui::StylesheetDialog) { ui->setupUi(this); connect(ui->styleSheetList, &QListWidget::currentItemChanged, this, &StylesheetDialog::currentStyleSheetChanged); connect(ui->styleSheetList, &QListWidget::itemClicked, this, &StylesheetDialog::listItemClicked); connect(ui->fileNameEdit, &QLineEdit::textChanged, this, &StylesheetDialog::fileNameChanged); connect(ui->addButton, &QPushButton::clicked, this, &StylesheetDialog::addButtonClicked); connect(ui->removeButton, &QPushButton::clicked, this, &StylesheetDialog::removeButtonClicked); QSettings settings; settings.beginGroup("styleSheets"); for (auto name : settings.allKeys()) { QListWidgetItem *listItem = new QListWidgetItem(name, ui->styleSheetList); listItem->setFlags(listItem->flags() | Qt::ItemIsUserCheckable); bool checked = settings.value(name).value<StyleSheet>().second; listItem->setCheckState(checked ? Qt::Checked : Qt::Unchecked); } settings.endGroup(); } StylesheetDialog::~StylesheetDialog() { delete ui; } void StylesheetDialog::currentStyleSheetChanged(QListWidgetItem *current, QListWidgetItem *previous) { if (!previous) { // Select the first item on startup ui->styleSheetList->setCurrentItem(current); } if (!current) { ui->fileNameEdit->setText(QString()); ui->sourceCodeEdit->setPlainText(QString()); return; } QSettings settings; settings.beginGroup("styleSheets"); ui->fileNameEdit->setText(current->text()); const QString source = settings.value(current->text()).value<StyleSheet>().first; ui->sourceCodeEdit->setPlainText(source); settings.endGroup(); } void StylesheetDialog::listItemClicked(QListWidgetItem *item) { MainWindow *window = static_cast<MainWindow *>(parent()); const QString name = item->text(); bool checkedStateChanged = (item->checkState() == Qt::Checked && !window->hasStyleSheet(name)) || (item->checkState() == Qt::Unchecked && window->hasStyleSheet(name)); if (!checkedStateChanged) return; QSettings settings; settings.beginGroup("styleSheets"); const QString source = settings.value(name).value<StyleSheet>().first; if (item->checkState() == Qt::Checked) { settings.setValue(name, QVariant::fromValue(qMakePair(source, true))); window->insertStyleSheet(name, source, true); } else { settings.setValue(name, QVariant::fromValue(qMakePair(source, false))); window->removeStyleSheet(name, true); } settings.endGroup(); } void StylesheetDialog::fileNameChanged(const QString &text) { QList<QListWidgetItem *> items = ui->styleSheetList->findItems(text, Qt::MatchFixedString); if (items.size()) ui->addButton->setEnabled(false); else ui->addButton->setEnabled(true); } void StylesheetDialog::addButtonClicked() { const QString name = ui->fileNameEdit->text(); const QString source = ui->sourceCodeEdit->toPlainText(); if (name.isEmpty() || source.isEmpty()) return; QListWidgetItem *listItem = new QListWidgetItem(ui->fileNameEdit->text(), ui->styleSheetList); listItem->setFlags(listItem->flags() | Qt::ItemIsUserCheckable); listItem->setCheckState(Qt::Checked); MainWindow *window = static_cast<MainWindow *>(parent()); window->insertStyleSheet(name, source, true); QSettings settings; settings.beginGroup("styleSheets"); settings.setValue(name, QVariant::fromValue(qMakePair(source, true))); settings.endGroup(); ui->addButton->setEnabled(false); } void StylesheetDialog::removeButtonClicked() { if (ui->styleSheetList->selectedItems().isEmpty()) return; MainWindow *window = static_cast<MainWindow *>(parent()); QSettings settings; settings.beginGroup("styleSheets"); QListWidgetItem *item = ui->styleSheetList->selectedItems().first(); const QString name = item->text(); window->removeStyleSheet(name, true); settings.remove(name); delete item; settings.endGroup(); }