qml: Add stub window

Author: hebasto

src/Makefile.qt.include

@@ -280,6 +280,10 @@ BITCOIN_QT_WALLET_CPP = \
 BITCOIN_QML_BASE_CPP = \
   qml/bitcoin.cpp
 
+QML_QRC_CPP = qml/qrc_bitcoin.cpp
+QML_QRC = qml/bitcoin_qml.qrc
+RES_QML = $(wildcard $(srcdir)/qml/pages/*.qml)
+
 BITCOIN_QT_CPP = $(BITCOIN_QT_BASE_CPP)
 if TARGET_WINDOWS
 BITCOIN_QT_CPP += $(BITCOIN_QT_WINDOWS_CPP)
@@ -308,7 +312,8 @@ endif
 nodist_qt_libbitcoinqt_a_SOURCES = $(QT_MOC_CPP) $(QT_MOC) $(QT_QRC_CPP) $(QT_QRC_LOCALE_CPP)
 
 if BUILD_WITH_QML
-  qt_libbitcoinqt_a_SOURCES += $(BITCOIN_QML_BASE_CPP)
+  qt_libbitcoinqt_a_SOURCES += $(BITCOIN_QML_BASE_CPP) $(QML_QRC) $(RES_QML)
+  nodist_qt_libbitcoinqt_a_SOURCES += $(QML_QRC_CPP)
 endif # BUILD_WITH_QML
 
 # forms/foo.h -> forms/ui_foo.h
@@ -380,6 +385,12 @@ $(QT_QRC_CPP): $(QT_QRC) $(QT_FORMS_H) $(RES_FONTS) $(RES_ICONS) $(RES_ANIMATION
 	@test -f $(RCC)
 	$(AM_V_GEN) QT_SELECT=$(QT_SELECT) $(RCC) -name bitcoin --format-version 1 $< > $@
 
+if BUILD_WITH_QML
+$(QML_QRC_CPP): $(QML_QRC) $(RES_QML)
+	@test -f $(RCC)
+	$(AM_V_GEN) QT_SELECT=$(QT_SELECT) $(RCC) --name bitcoin_qml --format-version 1 $< > $@
+endif # BUILD_WITH_QML
+
 CLEAN_QT = $(nodist_qt_libbitcoinqt_a_SOURCES) $(QT_QM) $(QT_FORMS_H) qt/*.gcda qt/*.gcno qt/temp_bitcoin_locale.qrc
 
 CLEANFILES += $(CLEAN_QT)

src/qml/bitcoin.cpp

@@ -18,6 +18,8 @@
 
 #include <QGuiApplication>
 #include <QQmlApplicationEngine>
+#include <QStringLiteral>
+#include <QUrl>
 
 namespace {
 void SetupUIArgs(ArgsManager& argsman)
@@ -40,9 +42,15 @@ int QmlGuiMain(int argc, char* argv[])
     boost::signals2::scoped_connection handler_question = ::uiInterface.ThreadSafeQuestion_connect(noui_ThreadSafeQuestion);
     boost::signals2::scoped_connection handler_init_message = ::uiInterface.InitMessage_connect(noui_InitMessage);
 
+    Q_INIT_RESOURCE(bitcoin_qml);
+
     QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QGuiApplication app(argc, argv);
     QQmlApplicationEngine engine;
+    engine.load(QUrl(QStringLiteral("qrc:///qml/pages/stub.qml")));
+    if (engine.rootObjects().isEmpty()) {
+        return EXIT_FAILURE;
+    }
 
     // Parse command-line options. We do this after qt in order to show an error if there are problems parsing these.
     SetupServerArgs(gArgs);

src/qml/bitcoin_qml.qrc

@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+    <qresource prefix="/qml">
+        <file>pages/stub.qml</file>
+    </qresource>
+</RCC>

src/qml/pages/stub.qml

@@ -0,0 +1,9 @@
+import QtQuick.Controls 2.12
+
+ApplicationWindow {
+    id: appWindow
+    title: "Bitcoin Core TnG"
+    minimumWidth: 750
+    minimumHeight: 450
+    visible: true
+}