Include default style in resources + use application specific style load path

pbfplugin.pro

@@ -30,6 +30,7 @@ SOURCES += src/pbfplugin.cpp \
     src/function.cpp \
     src/textpathitem.cpp \
     src/textitem.cpp
+RESOURCES += pbfplugin.qrc
 
 LIBS += -lprotobuf-lite
 

pbfplugin.qrc

@@ -0,0 +1,5 @@
+<RCC>
+	<qresource prefix="/">
+		<file>style/style.json</file>
+	</qresource>
+</RCC>

src/pbfplugin.cpp

@@ -1,20 +1,20 @@
-#include <QDir>
-#include <QDebug>
+#include <QStandardPaths>
 #include "pbfplugin.h"
 #include "pbfhandler.h"
 #include "style.h"
 
 
-#define GLOBAL_CONFIG "/usr/share/pbf/style.json"
-#define USER_CONFIG   QDir::homePath() + "/.pbf/style.json"
-
 PBFPlugin::PBFPlugin()
 {
 	_style = new Style(this);
 
-	if (!_style->load(USER_CONFIG))
-		if (!_style->load(GLOBAL_CONFIG))
-			qCritical() << "Map style not found";
+	QString style(QStandardPaths::locate(QStandardPaths::AppDataLocation,
+	  "style/style.json"));
+
+	if (style.isEmpty() || !_style->load(style)) {
+		Q_INIT_RESOURCE(pbfplugin);
+		_style->load(":/style/style.json");
+	}
 }
 
 QImageIOPlugin::Capabilities PBFPlugin::capabilities(QIODevice *device,

src/style.cpp

@@ -415,12 +415,21 @@ void Style::Layer::drawSymbol(int zoom, const QPainterPath &path,
 bool Style::load(const QString &fileName)
 {
 	QFile file(fileName);
-	if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+	if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+		qCritical() << fileName << ": error opening file";
 		return false;
+	}
 	QByteArray ba(file.readAll());
 	file.close();
 
-	QJsonObject json(QJsonDocument::fromJson(ba).object());
+	QJsonParseError error;
+	QJsonDocument doc(QJsonDocument::fromJson(ba, &error));
+	if (doc.isNull()) {
+		qCritical() << fileName << ":" << error.errorString();
+		return false;
+	}
+
+	QJsonObject json(doc.object());
 	if (json.contains("layers") && json["layers"].isArray()) {
 		QJsonArray layers = json["layers"].toArray();
 		for (int i = 0; i < layers.size(); i++)