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* Copyright (C) 2014 Canonical, Ltd.
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License version 3, as published by
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* the Free Software Foundation.
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
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* SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "ApplicationScreenshotProvider.h"
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#include "ApplicationManager.h"
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#include "ApplicationInfo.h"
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#include <QGuiApplication>
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#include <QQuickWindow>
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ApplicationScreenshotProvider::ApplicationScreenshotProvider(ApplicationManager *appManager)
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: QQuickImageProvider(QQuickImageProvider::Image)
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, m_appManager(appManager)
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QImage ApplicationScreenshotProvider::requestImage(const QString &imageId, QSize * size,
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const QSize &requestedSize)
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// We ignore requestedSize here intentionally to avoid keeping scaled copies around
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Q_UNUSED(requestedSize)
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QString appId = imageId.split('/').first();
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ApplicationInfo* app = static_cast<ApplicationInfo*>(m_appManager->findApplication(appId));
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QString filePath = QString("%1/Dash/graphics/phone/screenshots/%2@12.png").arg(qmlDirectory()).arg(app->icon().toString());
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if (!image.load(filePath)) {
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qWarning() << "failed loading app image" << filePath;
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if (app->stage() == ApplicationInfo::SideStage) {
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QByteArray gus = qgetenv("GRID_UNIT_PX");
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if (gus.isEmpty() || gus.toInt() == 0) {
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image = image.scaledToWidth(gus.toInt() * 48);
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// Lets scale main stage applications to be the size of the screen/window.
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QGuiApplication *unity = qobject_cast<QGuiApplication*>(qApp);
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Q_FOREACH (QWindow *win, unity->allWindows()) {
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QQuickWindow *quickWin = qobject_cast<QQuickWindow*>(win);
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image = image.scaledToWidth(quickWin->width() - m_appManager->rightMargin());
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size->setWidth(image.width());
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size->setHeight(image.height());