Add all the Qt5 Linux VST implementations

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "src/3rdparty/qt5-x11embed"]
+	path = src/3rdparty/qt5-x11embed
+	url = https://github.com/Lukas-W/qt5-x11embed.git

.travis/linux..install.sh

@@ -2,11 +2,13 @@
 
 PACKAGES="cmake libsndfile-dev fftw3-dev libvorbis-dev libogg-dev libmp3lame-dev
 	libasound2-dev libjack-dev libsdl-dev libsamplerate0-dev libstk0-dev
-	libfluidsynth-dev portaudio19-dev wine-dev g++-multilib libfltk1.3-dev
+	libfluidsynth-dev portaudio19-dev g++-multilib libfltk1.3-dev
 	libgig-dev libsoundio-dev"
 
+VST_PACKAGES="wine-dev libqt5x11extras5-dev qtbase5-private-dev libxcb-util0-dev libxcb-keysyms1-dev"
+
 # Help with unmet dependencies
-PACKAGES="$PACKAGES libjack0"
+PACKAGES="$PACKAGES $VST_PACKAGES libjack0"
 
 if [ $QT5 ]; then
 	PACKAGES="$PACKAGES qtbase5-dev qttools5-dev-tools qttools5-dev"

include/RemotePlugin.h

@@ -796,19 +796,6 @@ class EXPORT RemotePlugin : public QObject, public RemotePluginBase
 		unlock();
 	}
 
-	void showUI()
-	{
-		lock();
-		sendMessage( IdShowUI );
-		unlock();
-	}
-
-	void hideUI()
-	{
-		lock();
-		sendMessage( IdHideUI );
-		unlock();
-	}
 
 	void toggleUI()
 	{
@@ -841,6 +828,9 @@ class EXPORT RemotePlugin : public QObject, public RemotePluginBase
 		m_commMutex.unlock();
 	}
 
+public slots:
+	void showUI();
+	void hideUI();
 
 protected:
 	inline void setSplittedChannels( bool _on )

plugins/vst_base/CMakeLists.txt

@@ -28,6 +28,7 @@ SET(REMOTE_VST_PLUGIN_FILEPATH "RemoteVstPlugin" CACHE STRING "Relative file pat
 
 ADD_DEFINITIONS(-DREMOTE_VST_PLUGIN_FILEPATH="${REMOTE_VST_PLUGIN_FILEPATH}")
 BUILD_PLUGIN(vstbase vst_base.cpp VstPlugin.cpp VstPlugin.h communication.h MOCFILES VstPlugin.h)
+TARGET_LINK_LIBRARIES(vstbase qx11embedcontainer)
 
 IF(LMMS_BUILD_LINUX AND NOT WANT_VST_NOWINE)
 

plugins/vst_base/RemoteVstPlugin.cpp

@@ -454,6 +454,15 @@ bool RemoteVstPlugin::processMessage( const message & _m )
 {
 	switch( _m.id )
 	{
+
+#ifdef LMMS_EMBED_VST_X11
+		case IdShowUI:
+			ShowWindow( m_window, SW_SHOWNORMAL );
+			UpdateWindow( m_window );
+			break;
+#endif
+
+#ifndef LMMS_EMBED_VST
 		case IdShowUI:
 			initEditor();
 			break;
@@ -477,6 +486,7 @@ bool RemoteVstPlugin::processMessage( const message & _m )
 			sendMessage( message( IdIsUIVisible )
 						.addInt( m_window ? 1 : 0 ) );
 			break;
+#endif
 
 		case IdVstLoadPlugin:
 			init( _m.getString() );
@@ -667,7 +677,7 @@ void RemoteVstPlugin::initEditor()
 		wc.hInstance = hInst;
 		wc.hIcon = LoadIcon( NULL, IDI_APPLICATION );
 		wc.hCursor = LoadCursor( NULL, IDC_ARROW );
-		wc.hbrBackground = (HBRUSH) GetStockObject( BLACK_BRUSH );
+		wc.hbrBackground = NULL;
 		wc.lpszMenuName = NULL;
 		wc.lpszClassName = "LVSL";
 
@@ -705,7 +715,10 @@ void RemoteVstPlugin::initEditor()
 						SWP_NOMOVE | SWP_NOZORDER );
 	pluginDispatch( effEditTop );
 
+#ifndef LMMS_EMBED_VST_X11
 	ShowWindow( m_window, SW_SHOWNORMAL );
+#endif
+
 #ifdef LMMS_BUILD_LINUX
 	m_windowID = (intptr_t) GetProp( m_window, "__wine_x11_whole_window" );
 #else

plugins/vst_base/VstPlugin.cpp

@@ -36,6 +36,7 @@
 #include <QX11EmbedContainer>
 #include <QX11Info>
 #else
+#include "X11EmbedContainer.h"
 #include <QWindow>
 #endif
 #else
@@ -55,8 +56,7 @@
 #include "templates.h"
 #include "FileDialog.h"
 
-
-#if QT_VERSION < 0x050000
+#ifdef LMMS_EMBED_VST
 class vstSubWin : public QMdiSubWindow
 {
 public:
@@ -175,8 +175,6 @@ void VstPlugin::tryLoad( const QString &remoteVstPluginExecutable )
 }
 
 
-
-
 #ifdef LMMS_EMBED_VST
 void VstPlugin::showEditor( QWidget * _parent, bool isEffect )
 {
@@ -206,49 +204,47 @@ void VstPlugin::showEditor( QWidget * _parent, bool isEffect )
 		return;
 	}
 
-#if QT_VERSION < 0x050000
-	m_pluginWidget = new QWidget( _parent );
-	m_pluginWidget->setFixedSize( m_pluginGeometry );
-	m_pluginWidget->setWindowTitle( name() );
+	vstSubWin * sw = new vstSubWin( gui->mainWindow()->workspace() );
+	//auto sw = new SubWindow();
+
+#ifdef LMMS_EMBED_VST_X11
+	QX11EmbedContainer * container = new QX11EmbedContainer( sw );
+	connect(container, SIGNAL(clientIsEmbedded()), this, SLOT(showUI()));
+	container->embedClient( m_pluginWindowID );
+#else
+	QWindow* vw = QWindow::fromWinId(m_pluginWindowID);
+	QWidget* container = QWidget::createWindowContainer(vw, sw );
+	// TODO: Synchronize show
+	// Tell remote that it is embedded
+	// Wait for remote reply
+#endif
+
+	container->setFixedSize( m_pluginGeometry );
+	container->setWindowTitle( name() );
+
 	if( _parent == NULL )
 	{
-		vstSubWin * sw = new vstSubWin(
-					gui->mainWindow()->workspace() );
+		m_pluginWidget = container;
+
+		sw->setWidget(container);
+
 		if( isEffect )
 		{
 			sw->setAttribute( Qt::WA_TranslucentBackground );
 			sw->setWindowFlags( Qt::FramelessWindowHint );
-			sw->setWidget( m_pluginWidget );
-			QX11EmbedContainer * xe = new QX11EmbedContainer( sw );
-			xe->embedClient( m_pluginWindowID );
-			xe->setFixedSize( m_pluginGeometry );
-			xe->show();
-		} 
+		}
 		else
 		{
 			sw->setWindowFlags( Qt::WindowCloseButtonHint );
-			sw->setWidget( m_pluginWidget );
-
-			QX11EmbedContainer * xe = new QX11EmbedContainer( sw );
-			xe->embedClient( m_pluginWindowID );
-			xe->setFixedSize( m_pluginGeometry );
-			xe->move( 4, 24 );
-			xe->show();
 		}
-	}
-#else
-	QWindow * window = QWindow::fromWinId( m_pluginWindowID );
-	m_pluginWidget = QWidget::createWindowContainer( window, _parent,
-								Qt::Window );
-	m_pluginWidget->setFixedSize( m_pluginGeometry );
-	m_pluginWidget->setWindowTitle( name() );
-	// TODO: Synchronize show
-	// Tell remote that it is embedded
-	// Wait for remote reply
+	};
+
+#ifdef LMMS_EMBED_VST_X11
 #endif
+	container->setFixedSize( m_pluginGeometry );
 #endif
 
-	m_pluginWidget->show();
+	//m_pluginWidget->show();
 }
 
 
@@ -268,7 +264,7 @@ void VstPlugin::hideEditor()
 
 void VstPlugin::toggleEditor()
 {
-	QWidget * w = m_pluginWidget;
+	QWidget * w = pluginWidget();
 	if( w )
 	{
 		w->setVisible( !w->isVisible() );

plugins/vst_base/VstPlugin.h

@@ -96,7 +96,7 @@ class PLUGIN_EXPORT VstPlugin : public RemotePlugin, public JournallingObject
 
 	inline QWidget * pluginWidget( bool _top_widget = true )
 	{
-#if QT_VERSION < 0x050000
+#ifdef LMMS_EMBED_VST
 		if( _top_widget && m_pluginWidget )
 		{
 			if( m_pluginWidget->parentWidget() )

src/3rdparty/CMakeLists.txt

@@ -0,0 +1,8 @@
+include(ExternalProject)
+
+IF(QT5 AND LMMS_BUILD_LINUX)
+	set(BUILD_SHARED_LIBS OFF)
+	add_subdirectory(qt5-x11embed)
+ELSE()
+	add_library(qx11embedcontainer STATIC /dev/null)
+ENDIF()

src/CMakeLists.txt

@@ -14,6 +14,7 @@ IF(LMMS_BUILD_APPLE)
 	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
 ENDIF()
 
+ADD_SUBDIRECTORY(3rdparty)
 ADD_SUBDIRECTORY(core)
 ADD_SUBDIRECTORY(gui)
 ADD_SUBDIRECTORY(tracks)
@@ -132,7 +133,7 @@ IF(LMMS_BUILD_HAIKU)
 	SET(EXTRA_LIBRARIES "-lnetwork")
 ENDIF()
 
-SET(LMMS_REQUIRED_LIBS
+SET(LMMS_REQUIRED_LIBS ${LMMS_REQUIRED_LIBS}
 	${CMAKE_THREAD_LIBS_INIT}
 	${QT_LIBRARIES}
 	${ASOUND_LIBRARY}

src/core/RemotePlugin.cpp

@@ -392,6 +392,20 @@ void RemotePlugin::processMidiEvent( const MidiEvent & _e,
 	unlock();
 }
 
+void RemotePlugin::showUI()
+{
+	lock();
+	sendMessage( IdShowUI );
+	unlock();
+}
+
+void RemotePlugin::hideUI()
+{
+	lock();
+	sendMessage( IdHideUI );
+	unlock();
+}
+
 
 
 

src/gui/SubWindow.cpp

@@ -97,7 +97,10 @@ void SubWindow::paintEvent( QPaintEvent * )
 {
 	QPainter p( this );
 	QRect rect( 0, 0, width(), m_titleBarHeight );
-	bool isActive = SubWindow::mdiArea()->activeSubWindow() == this;
+
+	bool isActive = mdiArea()
+			? mdiArea()->activeSubWindow() == this
+			: false;
 
 	p.fillRect( rect, isActive ? activeColor() : p.pen().brush() );