Provide presets for QGradient

Similar to Qt::GlobalColor, the presets allow the user to create
brushes based on predefined gradients, quickly getting pretty pixels
on screen.

The presets are based on the linear gradients from WebGradients, a
free collection of gradients, hosted at https://webgradients.com/.
The few radial and blended gradient presets have been excluded.

Change-Id: I1ce8f2210a6045c9edb8829ab3eddcc313549127
Reviewed-by: Tor Arne Vestbø <[email protected]>

1 files changed, 54 insertions, 0 deletions

diff --git a/util/gradientgen/tobinaryjson.cpp b/util/gradientgen/tobinaryjson.cpp
new file mode 100644
index 00000000000..65fe07f4b83
--- /dev/null
+++ b/util/gradientgen/tobinaryjson.cpp
@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the utils of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <iostream>
+
+#include <qdebug.h>
+#include <qjsondocument.h>
+
+using namespace std;
+
+int main()
+{
+    QByteArray json;
+    while (!cin.eof()) {
+        char arr[1024];
+        cin.read(arr, sizeof(arr));
+        json.append(arr, cin.gcount());
+    }
+
+    QJsonParseError error;
+    QJsonDocument document = QJsonDocument::fromJson(json, &error);
+    if (document.isNull()) {
+        qDebug() << "error:" << qPrintable(error.errorString()) << "at offset" << error.offset;
+        return 1;
+    }
+
+    QByteArray binaryJson = document.toBinaryData();
+    cout.write(binaryJson.constData(), binaryJson.size());
+}