From ceec70e014db629aa8ba3472839cc42781d73d4c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Sun, 1 Mar 2015 22:20:57 +0100
Subject: GH-796 Icon theme loading workaround

Replacing the Qt machinery with other Qt machinery under our control
---
 depends/iconfix/xdgicon.cpp | 152 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 depends/iconfix/xdgicon.cpp

(limited to 'depends/iconfix/xdgicon.cpp')

diff --git a/depends/iconfix/xdgicon.cpp b/depends/iconfix/xdgicon.cpp
new file mode 100644
index 00000000..a36d80a9
--- /dev/null
+++ b/depends/iconfix/xdgicon.cpp
@@ -0,0 +1,152 @@
+/* BEGIN_COMMON_COPYRIGHT_HEADER
+ * (c)LGPL2+
+ *
+ * Razor - a lightweight, Qt based, desktop toolset
+ * http://razor-qt.org
+ *
+ * Copyright: 2010-2011 Razor team
+ * Authors:
+ *   Alexander Sokoloff <sokoloff.a@gmail.com>
+ *
+ * This program or library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * END_COMMON_COPYRIGHT_HEADER */
+
+#include "xdgicon.h"
+
+#include <QString>
+#include <QDebug>
+#include <QDir>
+#include <QStringList>
+#include <QFileInfo>
+#include <QCache>
+#include "internal/qiconloader_p.h"
+#include <QCoreApplication>
+
+/************************************************
+
+ ************************************************/
+static void qt_cleanup_icon_cache();
+typedef QCache<QString, QIcon> IconCache;
+
+namespace
+{
+struct QtIconCache : public IconCache
+{
+	QtIconCache()
+	{
+		qAddPostRoutine(qt_cleanup_icon_cache);
+	}
+};
+}
+Q_GLOBAL_STATIC(IconCache, qtIconCache);
+
+static void qt_cleanup_icon_cache()
+{
+	qtIconCache()->clear();
+}
+
+/************************************************
+
+ ************************************************/
+XdgIcon::XdgIcon()
+{
+}
+
+/************************************************
+
+ ************************************************/
+XdgIcon::~XdgIcon()
+{
+}
+
+/************************************************
+ Returns the name of the current icon theme.
+ ************************************************/
+QString XdgIcon::themeName()
+{
+	return QIcon::themeName();
+}
+
+/************************************************
+ Sets the current icon theme to name.
+ ************************************************/
+void XdgIcon::setThemeName(const QString &themeName)
+{
+	QIcon::setThemeName(themeName);
+	QtXdg::QIconLoader::instance()->updateSystemTheme();
+}
+
+/************************************************
+ Returns the QIcon corresponding to name in the current icon theme. If no such icon
+ is found in the current theme fallback is return instead.
+ ************************************************/
+QIcon XdgIcon::fromTheme(const QString &iconName, const QIcon &fallback)
+{
+	if (iconName.isEmpty())
+		return fallback;
+
+	bool isAbsolute = (iconName[0] == '/');
+
+	QString name = QFileInfo(iconName).fileName();
+	if (name.endsWith(".png", Qt::CaseInsensitive) ||
+		name.endsWith(".svg", Qt::CaseInsensitive) ||
+		name.endsWith(".xpm", Qt::CaseInsensitive))
+	{
+		name.truncate(name.length() - 4);
+	}
+
+	QIcon icon;
+
+	if (qtIconCache()->contains(name))
+	{
+		icon = *qtIconCache()->object(name);
+	}
+	else
+	{
+		QIcon *cachedIcon;
+		if (!isAbsolute)
+			cachedIcon = new QIcon(new QtXdg::QIconLoaderEngineFixed(name));
+		else
+			cachedIcon = new QIcon(iconName);
+		qtIconCache()->insert(name, cachedIcon);
+		icon = *cachedIcon;
+	}
+
+	// Note the qapp check is to allow lazy loading of static icons
+	// Supporting fallbacks will not work for this case.
+	if (qApp && !isAbsolute && icon.availableSizes().isEmpty())
+	{
+		return fallback;
+	}
+	return icon;
+}
+
+/************************************************
+ Returns the QIcon corresponding to names in the current icon theme. If no such icon
+ is found in the current theme fallback is return instead.
+ ************************************************/
+QIcon XdgIcon::fromTheme(const QStringList &iconNames, const QIcon &fallback)
+{
+	foreach (QString iconName, iconNames)
+	{
+		QIcon icon = fromTheme(iconName);
+		if (!icon.isNull())
+			return icon;
+	}
+
+	return fallback;
+}
-- 
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