Carla: Add lv2-gtk3 UI bridge

.gitignore

@@ -23,6 +23,7 @@ ui_*.h
 
 carla-bridge-qtcreator
 carla-bridge-lv2-gtk2
+carla-bridge-lv2-gtk3
 carla-bridge-lv2-qt4
 carla-bridge-lv2-x11
 carla-bridge-vst-x11

c++/carla-bridge/carla_bridge_toolkit-gtk3.cpp

@@ -0,0 +1,202 @@
+/*
+ * Carla UI bridge code
+ * Copyright (C) 2011-2012 Filipe Coelho <falktx@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * For a full copy of the GNU General Public License see the COPYING file
+ */
+
+#include "carla_bridge_client.h"
+
+#ifdef BRIDGE_LV2_X11
+#  error X11 UI uses Qt4
+#endif
+
+#include <gtk/gtk.h>
+#include <QtCore/QSettings>
+
+CARLA_BRIDGE_START_NAMESPACE
+
+// -------------------------------------------------------------------------
+
+class CarlaToolkitGtk3 : public CarlaToolkit
+{
+public:
+    CarlaToolkitGtk3(const char* const title)
+        : CarlaToolkit(title),
+          settings("Cadence", "Carla-Gtk3UIs")
+    {
+        qDebug("CarlaToolkitGtk3::CarlaToolkitGtk3(%s)", title);
+
+        window = nullptr;
+
+        lastX = lastY = 0;
+        lastWidth = lastHeight = 0;
+    }
+
+    ~CarlaToolkitGtk3()
+    {
+        qDebug("CarlaToolkitGtk3::~CarlaToolkitGtk3()");
+    }
+
+    void init()
+    {
+        qDebug("CarlaToolkitGtk3::init()");
+
+        static int argc = 0;
+        static char** argv = { nullptr };
+        gtk_init(&argc, &argv);
+    }
+
+    void exec(CarlaClient* const client)
+    {
+        qDebug("CarlaToolkitGtk3::exec(%p)", client);
+        Q_ASSERT(client);
+
+        window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+        gtk_container_add(GTK_CONTAINER(window), (GtkWidget*)client->getWidget());
+
+        gtk_window_set_resizable(GTK_WINDOW(window), client->isResizable());
+        gtk_window_set_title(GTK_WINDOW(window), m_title);
+
+        gtk_window_get_position(GTK_WINDOW(window), &lastX, &lastY);
+        gtk_window_get_size(GTK_WINDOW(window), &lastWidth, &lastHeight);
+
+        if (settings.contains(QString("%1/pos_x").arg(m_title)))
+        {
+            lastX = settings.value(QString("%1/pos_x").arg(m_title), lastX).toInt();
+            lastY = settings.value(QString("%1/pos_y").arg(m_title), lastY).toInt();
+            gtk_window_move(GTK_WINDOW(window), lastX, lastY);
+
+            if (client->isResizable())
+            {
+                lastWidth  = settings.value(QString("%1/width").arg(m_title), lastWidth).toInt();
+                lastHeight = settings.value(QString("%1/height").arg(m_title), lastHeight).toInt();
+                gtk_window_resize(GTK_WINDOW(window), lastWidth, lastHeight);
+            }
+        }
+
+        g_timeout_add(50, gtk_ui_timeout, this);
+        g_signal_connect(window, "destroy", G_CALLBACK(gtk_ui_destroy), this);
+
+        m_client = client;
+        m_client->sendOscUpdate();
+
+#ifdef QTCREATOR_TEST
+        show();
+#endif
+
+        // Main loop
+        gtk_main();
+    }
+
+    void quit()
+    {
+        qDebug("CarlaToolkitGtk3::quit()");
+
+        if (window)
+        {
+            gtk_widget_destroy(window);
+            gtk_main_quit();
+
+            window = nullptr;
+        }
+
+        m_client = nullptr;
+    }
+
+    void show()
+    {
+        qDebug("CarlaToolkitGtk3::show()");
+        Q_ASSERT(window);
+
+        if (window)
+            gtk_widget_show_all(window);
+    }
+
+    void hide()
+    {
+        qDebug("CarlaToolkitGtk3::hide()");
+        Q_ASSERT(window);
+
+        if (window)
+            gtk_widget_hide(window);
+    }
+
+    void resize(int width, int height)
+    {
+        qDebug("CarlaToolkitGtk3::resize(%i, %i)", width, height);
+        Q_ASSERT(window);
+
+        if (window)
+            gtk_window_resize(GTK_WINDOW(window), width, height);
+    }
+
+    // ---------------------------------------------------------------------
+
+protected:
+    void handleDestroy()
+    {
+        qDebug("CarlaToolkitGtk3::handleDestroy()");
+
+        window = nullptr;
+        m_client = nullptr;
+
+        settings.setValue(QString("%1/pos_x").arg(m_title), lastX);
+        settings.setValue(QString("%1/pos_y").arg(m_title), lastY);
+        settings.setValue(QString("%1/width").arg(m_title), lastWidth);
+        settings.setValue(QString("%1/height").arg(m_title), lastHeight);
+        settings.sync();
+    }
+
+    gboolean handleTimeout()
+    {
+        if (window)
+        {
+            gtk_window_get_position(GTK_WINDOW(window), &lastX, &lastY);
+            gtk_window_get_size(GTK_WINDOW(window), &lastWidth, &lastHeight);
+        }
+
+        return m_client ? m_client->runMessages() : false;
+    }
+
+    // ---------------------------------------------------------------------
+
+private:
+    GtkWidget* window;
+    QSettings settings;
+
+    gint lastX, lastY, lastWidth, lastHeight;
+
+    static void gtk_ui_destroy(GtkWidget*, gpointer data)
+    {
+        CarlaToolkitGtk3* const _this_ = (CarlaToolkitGtk3*)data;
+        _this_->handleDestroy();
+
+        gtk_main_quit();
+    }
+
+    static gboolean gtk_ui_timeout(gpointer data)
+    {
+        CarlaToolkitGtk3* const _this_ = (CarlaToolkitGtk3*)data;
+        return _this_->handleTimeout();
+    }
+};
+
+// -------------------------------------------------------------------------
+
+CarlaToolkit* CarlaToolkit::createNew(const char* const title)
+{
+    return new CarlaToolkitGtk3(title);
+}
+
+CARLA_BRIDGE_END_NAMESPACE