Added support for HTTP/2

src/GUI/gui.cpp

@@ -920,6 +920,10 @@ void GUI::openOptions()
 		QPixmapCache::setCacheLimit(options.pixmapCache * 1024);
 	if (options.connectionTimeout != _options.connectionTimeout)
 		Downloader::setTimeout(options.connectionTimeout);
+#ifdef ENABLE_HTTP2
+	if (options.enableHTTP2 != _options.enableHTTP2)
+		Downloader::enableHTTP2(options.enableHTTP2);
+#endif // ENABLE_HTTP2
 
 	if (reload)
 		reloadFile();
@@ -1755,6 +1759,10 @@ void GUI::writeSettings()
 		settings.setValue(POI_RADIUS_SETTING, _options.poiRadius);
 	if (_options.useOpenGL != USE_OPENGL_DEFAULT)
 		settings.setValue(USE_OPENGL_SETTING, _options.useOpenGL);
+#ifdef ENABLE_HTTP2
+	if (_options.enableHTTP2 != ENABLE_HTTP2_DEFAULT)
+		settings.setValue(ENABLE_HTTP2_SETTING, _options.enableHTTP2);
+#endif // ENABLE_HTTP2
 	if (_options.pixmapCache != PIXMAP_CACHE_DEFAULT)
 		settings.setValue(PIXMAP_CACHE_SETTING, _options.pixmapCache);
 	if (_options.connectionTimeout != CONNECTION_TIMEOUT_DEFAULT)
@@ -1987,6 +1995,10 @@ void GUI::readSettings()
 	  .toInt();
 	_options.useOpenGL = settings.value(USE_OPENGL_SETTING, USE_OPENGL_DEFAULT)
 	  .toBool();
+#ifdef ENABLE_HTTP2
+	_options.enableHTTP2 = settings.value(ENABLE_HTTP2_SETTING,
+	  ENABLE_HTTP2_DEFAULT).toBool();
+#endif // ENABLE_HTTP2
 	_options.pixmapCache = settings.value(PIXMAP_CACHE_SETTING,
 	  PIXMAP_CACHE_DEFAULT).toInt();
 	_options.connectionTimeout = settings.value(CONNECTION_TIMEOUT_SETTING,
@@ -2052,6 +2064,9 @@ void GUI::readSettings()
 
 	QPixmapCache::setCacheLimit(_options.pixmapCache * 1024);
 	Downloader::setTimeout(_options.connectionTimeout);
+#ifdef ENABLE_HTTP2
+	Downloader::enableHTTP2(_options.enableHTTP2);
+#endif // ENABLE_HTTP2
 
 	settings.endGroup();
 }

src/GUI/optionsdialog.cpp

@@ -440,6 +440,10 @@ QWidget *OptionsDialog::createSystemPage()
 {
 	_useOpenGL = new QCheckBox(tr("Use OpenGL"));
 	_useOpenGL->setChecked(_options->useOpenGL);
+#ifdef ENABLE_HTTP2
+	_enableHTTP2 = new QCheckBox(tr("Enable HTTP/2"));
+	_enableHTTP2->setChecked(_options->enableHTTP2);
+#endif // ENABLE_HTTP2
 
 	_pixmapCache = new QSpinBox();
 	_pixmapCache->setMinimum(16);
@@ -458,6 +462,9 @@ QWidget *OptionsDialog::createSystemPage()
 	formLayout->addRow(tr("Connection timeout:"), _connectionTimeout);
 
 	QFormLayout *checkboxLayout = new QFormLayout();
+#ifdef ENABLE_HTTP2
+	checkboxLayout->addWidget(_enableHTTP2);
+#endif // ENABLE_HTTP2
 	checkboxLayout->addWidget(_useOpenGL);
 
 	QWidget *systemTab = new QWidget();
@@ -568,6 +575,9 @@ void OptionsDialog::accept()
 		_options->poiRadius = poiRadius;
 
 	_options->useOpenGL = _useOpenGL->isChecked();
+#ifdef ENABLE_HTTP2
+	_options->enableHTTP2 = _enableHTTP2->isChecked();
+#endif // ENABLE_HTTP2
 	_options->pixmapCache = _pixmapCache->value();
 	_options->connectionTimeout = _connectionTimeout->value();
 

src/GUI/optionsdialog.h

@@ -5,6 +5,7 @@
 #include "palette.h"
 #include "units.h"
 
+
 class ColorBox;
 class StyleComboBox;
 class OddSpinBox;
@@ -48,6 +49,9 @@ struct Options {
 	int poiRadius;
 	// System
 	bool useOpenGL;
+#ifdef ENABLE_HTTP2
+	bool enableHTTP2;
+#endif // ENABLE_HTTP2
 	int pixmapCache;
 	int connectionTimeout;
 	// Print/Export
@@ -119,6 +123,9 @@ private:
 	QSpinBox *_pixmapCache;
 	QSpinBox *_connectionTimeout;
 	QCheckBox *_useOpenGL;
+#ifdef ENABLE_HTTP2
+	QCheckBox *_enableHTTP2;
+#endif // ENABLE_HTTP2
 	// Print/Export
 	QRadioButton *_wysiwyg;
 	QRadioButton *_hires;

src/GUI/settings.h

@@ -130,6 +130,8 @@
 #define POI_RADIUS_DEFAULT                (int)(IMPERIAL_UNITS() ? MIINM : KMINM)
 #define USE_OPENGL_SETTING                "useOpenGL"
 #define USE_OPENGL_DEFAULT                false
+#define ENABLE_HTTP2_SETTING              "enableHTTP2"
+#define ENABLE_HTTP2_DEFAULT              true
 #define PIXMAP_CACHE_SETTING              "pixmapCache"
 #define PIXMAP_CACHE_DEFAULT              64 /* MB */
 #define CONNECTION_TIMEOUT_SETTING        "connectionTimeout"