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authorDavid Robillard <d@drobilla.net>2019-06-06 21:03:16 +0200
committerDavid Robillard <d@drobilla.net>2019-06-06 21:05:10 +0200
commit8fcbdf19755f37592c67deb2c61f5470a1852ea4 (patch)
treee10e086f0acd939bd8b40b315556db8018912b65 /src/qt5_in_gtk.cpp
parent2f113db65cb0378b92b83369606a53c975572931 (diff)
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Add support for Qt5 in Gtk3
Diffstat (limited to 'src/qt5_in_gtk.cpp')
-rw-r--r--src/qt5_in_gtk.cpp233
1 files changed, 233 insertions, 0 deletions
diff --git a/src/qt5_in_gtk.cpp b/src/qt5_in_gtk.cpp
new file mode 100644
index 0000000..e74ab5d
--- /dev/null
+++ b/src/qt5_in_gtk.cpp
@@ -0,0 +1,233 @@
+/*
+ Copyright 2011-2017 David Robillard <http://drobilla.net>
+ Copyright 2018 Rui Nuno Capela <rncbc@rncbc.org>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include <gtk/gtk.h>
+
+#include <QVBoxLayout>
+#include <QWidget>
+#include <QWindow>
+
+#if GTK_MAJOR_VERSION == 3
+#include <gtk/gtkx.h>
+#endif
+
+#include "lv2/options/options.h"
+#include "lv2/urid/urid.h"
+
+#include "./suil_internal.h"
+
+extern "C" {
+
+#define SUIL_TYPE_QT_WRAPPER (suil_qt_wrapper_get_type())
+#define SUIL_QT_WRAPPER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), SUIL_TYPE_QT_WRAPPER, SuilQtWrapper))
+
+typedef struct _SuilQtWrapper SuilQtWrapper;
+typedef struct _SuilQtWrapperClass SuilQtWrapperClass;
+
+struct _SuilQtWrapper {
+ GtkSocket socket;
+ QWidget* qembed;
+ SuilWrapper* wrapper;
+ SuilInstance* instance;
+ const LV2UI_Idle_Interface* idle_iface;
+ guint idle_id;
+ guint idle_ms;
+};
+
+struct _SuilQtWrapperClass {
+ GtkSocketClass parent_class;
+};
+
+GType suil_qt_wrapper_get_type(void); // Accessor for SUIL_TYPE_QT_WRAPPER
+
+G_DEFINE_TYPE(SuilQtWrapper, suil_qt_wrapper, GTK_TYPE_SOCKET)
+
+static void
+suil_qt_wrapper_finalize(GObject* gobject)
+{
+ SuilQtWrapper* const self = SUIL_QT_WRAPPER(gobject);
+
+ if (self->idle_id) {
+ g_source_remove(self->idle_id);
+ self->idle_id = 0;
+ }
+
+ if (self->instance->handle) {
+ self->instance->descriptor->cleanup(self->instance->handle);
+ self->instance->handle = NULL;
+ }
+
+ if (self->qembed) {
+ self->qembed->deleteLater();
+ }
+
+ self->qembed = NULL;
+ self->idle_iface = NULL;
+ self->wrapper->impl = NULL;
+
+ G_OBJECT_CLASS(suil_qt_wrapper_parent_class)->finalize(gobject);
+}
+
+static void
+suil_qt_wrapper_class_init(SuilQtWrapperClass* klass)
+{
+ GObjectClass* const gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = suil_qt_wrapper_finalize;
+}
+
+static void
+suil_qt_wrapper_init(SuilQtWrapper* self)
+{
+ self->qembed = NULL;
+ self->wrapper = NULL;
+ self->instance = NULL;
+ self->idle_iface = NULL;
+ self->idle_id = 0;
+ self->idle_ms = 1000 / 30; // 30 Hz default
+}
+
+static void
+suil_qt_wrapper_realize(GtkWidget* w, gpointer data)
+{
+ SuilQtWrapper* const wrap = SUIL_QT_WRAPPER(w);
+ GtkSocket* const s = GTK_SOCKET(w);
+ const WId id = (WId)gtk_socket_get_id(s);
+
+ wrap->qembed->winId();
+ wrap->qembed->windowHandle()->setParent(QWindow::fromWinId(id));
+ wrap->qembed->show();
+}
+
+static int
+suil_qt_wrapper_resize(LV2UI_Feature_Handle handle, int width, int height)
+{
+ gtk_widget_set_size_request(GTK_WIDGET(handle), width, height);
+
+ return 0;
+}
+
+static gboolean
+suil_qt_wrapper_idle(void* data)
+{
+ SuilQtWrapper* const wrap = SUIL_QT_WRAPPER(data);
+
+ if (wrap->idle_iface) {
+ wrap->idle_iface->idle(wrap->instance->handle);
+ return TRUE; // Continue calling
+ }
+
+ return FALSE;
+}
+
+static int
+wrapper_wrap(SuilWrapper* wrapper,
+ SuilInstance* instance)
+{
+ SuilQtWrapper* const wrap = SUIL_QT_WRAPPER(wrapper->impl);
+
+ wrap->qembed = new QWidget();
+ wrap->wrapper = wrapper;
+ wrap->instance = instance;
+
+ QWidget* qwidget = (QWidget*)instance->ui_widget;
+ QVBoxLayout* layout = new QVBoxLayout();
+ layout->setMargin(0);
+ layout->setSpacing(0);
+ layout->addWidget(qwidget);
+
+ wrap->qembed->setLayout(layout);
+
+ g_signal_connect_after(G_OBJECT(wrap), "realize",
+ G_CALLBACK(suil_qt_wrapper_realize), NULL);
+
+ instance->host_widget = GTK_WIDGET(wrap);
+
+ const LV2UI_Idle_Interface* idle_iface = NULL;
+ if (instance->descriptor->extension_data) {
+ idle_iface = (const LV2UI_Idle_Interface*)
+ instance->descriptor->extension_data(LV2_UI__idleInterface);
+ }
+
+ if (idle_iface) {
+ wrap->idle_iface = idle_iface;
+ wrap->idle_id = g_timeout_add(
+ wrap->idle_ms, suil_qt_wrapper_idle, wrap);
+ }
+
+ return 0;
+}
+
+static void
+wrapper_free(SuilWrapper* wrapper)
+{
+ if (wrapper->impl) {
+ SuilQtWrapper* const wrap = SUIL_QT_WRAPPER(wrapper->impl);
+ gtk_widget_destroy(GTK_WIDGET(wrap));
+ }
+}
+
+SUIL_LIB_EXPORT
+SuilWrapper*
+suil_wrapper_new(SuilHost* host,
+ const char* host_type_uri,
+ const char* ui_type_uri,
+ LV2_Feature*** features,
+ unsigned n_features)
+{
+ SuilWrapper* wrapper = (SuilWrapper*)calloc(1, sizeof(SuilWrapper));
+ wrapper->wrap = wrapper_wrap;
+ wrapper->free = wrapper_free;
+
+ SuilQtWrapper* const wrap = SUIL_QT_WRAPPER(
+ g_object_new(SUIL_TYPE_QT_WRAPPER, NULL));
+
+ wrap->wrapper = NULL;
+ wrapper->impl = wrap;
+
+ wrapper->resize.handle = wrap;
+ wrapper->resize.ui_resize = suil_qt_wrapper_resize;
+
+ suil_add_feature(features, &n_features, LV2_UI__resize, &wrapper->resize);
+ suil_add_feature(features, &n_features, LV2_UI__idleInterface, NULL);
+
+ // Scan for URID map and options
+ LV2_URID_Map* map = NULL;
+ LV2_Options_Option* options = NULL;
+ for (LV2_Feature** f = *features; *f && (!map || !options); ++f) {
+ if (!strcmp((*f)->URI, LV2_OPTIONS__options)) {
+ options = (LV2_Options_Option*)(*f)->data;
+ } else if (!strcmp((*f)->URI, LV2_URID__map)) {
+ map = (LV2_URID_Map*)(*f)->data;
+ }
+ }
+
+ if (map && options) {
+ // Set UI update rate if given
+ LV2_URID ui_updateRate = map->map(map->handle, LV2_UI__updateRate);
+ for (LV2_Options_Option* o = options; o->key; ++o) {
+ if (o->key == ui_updateRate) {
+ wrap->idle_ms = 1000.0f / *(const float*)o->value;
+ break;
+ }
+ }
+ }
+
+ return wrapper;
+}
+
+} // extern "C"