SVG viewer: Add export option.

Add an option to export an image giving a size. This can be
used for creating High DPI icons from SVG files among other things.

Task-number: QTBUG-49374
Change-Id: I0437889961bc6e646667c5165584002f7ab4d952
Reviewed-by: aavit <eirik.aavitsland@theqtcompany.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/examples/svg/svgviewer/exportdialog.h b/examples/svg/svgviewer/exportdialog.h
new file mode 100644
index 0000000..71d8bdd
--- /dev/null
+++ b/examples/svg/svgviewer/exportdialog.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef EXPORTDIALOG_H
+#define EXPORTDIALOG_H
+
+#include <QDialog>
+
+QT_FORWARD_DECLARE_CLASS(QLineEdit)
+QT_FORWARD_DECLARE_CLASS(QSpinBox)
+
+class ExportDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit ExportDialog(QWidget *parent = 0);
+
+    QSize exportSize() const;
+    void setExportSize(const QSize &);
+
+    QString exportFileName() const;
+    void setExportFileName(const QString &);
+
+    void accept() override;
+
+private slots:
+    void browse();
+    void resetExportSize();
+    void exportWidthChanged(int width);
+    void exportHeightChanged(int height);
+
+private:
+    void setExportWidthBlocked(int width);
+    void setExportHeightBlocked(int height);
+
+    QLineEdit *m_fileNameLineEdit;
+    QSpinBox *m_widthSpinBox;
+    QSpinBox *m_heightSpinBox;
+    QSize m_defaultSize;
+    qreal m_aspectRatio;
+};
+
+#endif // EXPORTDIALOG_H