feat(App): use a image provider for qrc images

CMakeLists.txt

@@ -97,6 +97,7 @@ set(SOURCES
   src/app/logger/Logger.cpp
   src/app/paths/Paths.cpp
   src/app/providers/AvatarProvider.cpp
+  src/app/providers/ImageProvider.cpp
   src/app/providers/ThumbnailProvider.cpp
   src/app/translator/DefaultTranslator.cpp
   src/components/assistant/AssistantModel.cpp
@@ -149,6 +150,7 @@ set(HEADERS
   src/app/logger/Logger.hpp
   src/app/paths/Paths.hpp
   src/app/providers/AvatarProvider.hpp
+  src/app/providers/ImageProvider.hpp
   src/app/providers/ThumbnailProvider.hpp
   src/app/translator/DefaultTranslator.hpp
   src/components/assistant/AssistantModel.hpp

src/app/App.cpp

@@ -38,6 +38,7 @@
 #include "logger/Logger.hpp"
 #include "paths/Paths.hpp"
 #include "providers/AvatarProvider.hpp"
+#include "providers/ImageProvider.hpp"
 #include "providers/ThumbnailProvider.hpp"
 #include "translator/DefaultTranslator.hpp"
 
@@ -172,6 +173,7 @@ void App::initContentApp () {
 
   // Provide avatars/thumbnails providers.
   mEngine->addImageProvider(AvatarProvider::PROVIDER_ID, new AvatarProvider());
+  mEngine->addImageProvider(ImageProvider::PROVIDER_ID, new ImageProvider());
   mEngine->addImageProvider(ThumbnailProvider::PROVIDER_ID, new ThumbnailProvider());
 
   registerTypes();

src/app/providers/ImageProvider.cpp

@@ -0,0 +1,58 @@
+/*
+ * ImageProvider.cpp
+ * Copyright (C) 2017  Belledonne Communications, Grenoble, France
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ *  Created on: June 19, 2017
+ *      Author: Ronan Abhamon
+ */
+
+#include <QImage>
+#include <QPainter>
+#include <QSvgRenderer>
+
+#include "ImageProvider.hpp"
+
+// =============================================================================
+
+const QString ImageProvider::PROVIDER_ID = "internal";
+
+ImageProvider::ImageProvider () : QQuickImageProvider(
+    QQmlImageProviderBase::Image,
+    QQmlImageProviderBase::ForceAsynchronousImageLoading
+  ) {}
+
+QImage ImageProvider::requestImage (const QString &id, QSize *, const QSize &) {
+  const QString path = QStringLiteral(":/assets/images/%1").arg(id);
+
+  // 1. Build svg renderer.
+  QSvgRenderer renderer(path);
+  if (!renderer.isValid())
+    return QImage(path); // Not a svg file?
+
+  // 2. Create en empty image.
+  const QRectF viewBox = renderer.viewBoxF();
+  QImage image(static_cast<int>(viewBox.width()), static_cast<int>(viewBox.height()), QImage::Format_ARGB32);
+  if (image.isNull())
+    return QImage(); // Memory cannot be allocated.
+  image.fill(0x00000000);
+
+  // 3. Paint!
+  QPainter painter(&image);
+  renderer.render(&painter);
+
+  return image;
+}

src/app/providers/ImageProvider.hpp

@@ -0,0 +1,42 @@
+/*
+ * ImageProvider.hpp
+ * Copyright (C) 2017  Belledonne Communications, Grenoble, France
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ *  Created on: June 19, 2017
+ *      Author: Ronan Abhamon
+ */
+
+#ifndef IMAGE_PROVIDER_H_
+#define IMAGE_PROVIDER_H_
+
+#include <QQuickImageProvider>
+
+// =============================================================================
+
+class ImageProvider : public QQuickImageProvider {
+public:
+  ImageProvider ();
+  ~ImageProvider () = default;
+
+  QImage requestImage (const QString &id, QSize *size, const QSize &requestedSize) override;
+
+  static const QString PROVIDER_ID;
+
+private:
+};
+
+#endif // IMAGE_PROVIDER_H_

ui/modules/Common/Constants/Constants.qml

@@ -9,5 +9,5 @@ QtObject {
   property int sizeMax: 999999
 
   property string imagesFormat: '.svg'
-  property string imagesPath: 'qrc:/assets/images/'
+  property string imagesPath: 'image://internal/'
 }