Move QQuickPdfNavStack core into QPdfNavigationStack; use in QPdfView

QQuickPdfNavigationStack was implemented independently until now, but
users will need the same functionality in widget-based PDF viewers.
QPdfPageNavigation on the other hand may have eventually had the same
aspiration, but was just a glorified up/down counter thus far, with
questionable API; so we get rid of it, and make the API for page
navigation as much the same as possible between Quick and Widgets.

We rename push() to jump() along with removing the emitJumped argument.
Now jump() always emits (so we have to be more careful when to call it).

Change-Id: Icb07158a351e29b81e58ec037cd323bc0f54a1a1
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>

1 files changed, 0 insertions, 125 deletions

diff --git a/examples/pdfwidgets/pdfviewer/pageselector.cpp b/examples/pdfwidgets/pdfviewer/pageselector.cpp
deleted file mode 100644
index 28bff1359..000000000
--- a/examples/pdfwidgets/pdfviewer/pageselector.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtPDF module 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 "pageselector.h"
-
-#include <QHBoxLayout>
-#include <QLabel>
-#include <QLineEdit>
-#include <QPdfPageNavigation>
-#include <QToolButton>
-
-PageSelector::PageSelector(QWidget *parent)
-    : QWidget(parent)
-    , m_pageNavigation(nullptr)
-{
-    QHBoxLayout *layout = new QHBoxLayout(this);
-
-    m_previousPageButton = new QToolButton(this);
-    m_previousPageButton->setText("<");
-    m_previousPageButton->setEnabled(false);
-
-    m_pageNumberEdit = new QLineEdit(this);
-    m_pageNumberEdit->setAlignment(Qt::AlignRight);
-
-    m_pageCountLabel = new QLabel(this);
-    m_pageCountLabel->setText("0");
-
-    m_nextPageButton = new QToolButton(this);
-    m_nextPageButton->setText(">");
-    m_nextPageButton->setEnabled(false);
-
-    layout->addWidget(m_previousPageButton);
-    layout->addWidget(m_pageNumberEdit);
-    layout->addWidget(m_pageCountLabel);
-    layout->addWidget(m_nextPageButton);
-}
-
-void PageSelector::setPageNavigation(QPdfPageNavigation *pageNavigation)
-{
-    m_pageNavigation = pageNavigation;
-
-    connect(m_previousPageButton, &QToolButton::clicked, m_pageNavigation, &QPdfPageNavigation::goToPreviousPage);
-    connect(m_pageNavigation, &QPdfPageNavigation::canGoToPreviousPageChanged, m_previousPageButton, &QToolButton::setEnabled);
-
-    connect(m_pageNavigation, &QPdfPageNavigation::currentPageChanged, this, &PageSelector::onCurrentPageChanged);
-    connect(m_pageNavigation, &QPdfPageNavigation::pageCountChanged, this, [this](int pageCount){ m_pageCountLabel->setText(QString::fromLatin1("/ %1").arg(pageCount)); });
-
-    connect(m_pageNumberEdit, &QLineEdit::editingFinished, this, &PageSelector::pageNumberEdited);
-
-    connect(m_nextPageButton, &QToolButton::clicked, m_pageNavigation, &QPdfPageNavigation::goToNextPage);
-    connect(m_pageNavigation, &QPdfPageNavigation::canGoToNextPageChanged, m_nextPageButton, &QToolButton::setEnabled);
-
-    onCurrentPageChanged(m_pageNavigation->currentPage());
-}
-
-void PageSelector::onCurrentPageChanged(int page)
-{
-    if (m_pageNavigation->pageCount() == 0)
-        m_pageNumberEdit->setText(QString::number(0));
-    else
-        m_pageNumberEdit->setText(QString::number(page + 1));
-}
-
-void PageSelector::pageNumberEdited()
-{
-    if (!m_pageNavigation)
-        return;
-
-    const QString text = m_pageNumberEdit->text();
-
-    bool ok = false;
-    const int pageNumber = text.toInt(&ok);
-
-    if (!ok)
-        onCurrentPageChanged(m_pageNavigation->currentPage());
-    else
-        m_pageNavigation->setCurrentPage(qBound(0, pageNumber - 1, m_pageNavigation->pageCount() - 1));
-}