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-rw-r--r--src/gtk2_in_qt5.cpp168
1 files changed, 168 insertions, 0 deletions
diff --git a/src/gtk2_in_qt5.cpp b/src/gtk2_in_qt5.cpp
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+/*
+ Copyright 2011-2015 David Robillard <http://drobilla.net>
+ Copyright 2015 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 <QWindow>
+#include <QWidget>
+
+#include <QVBoxLayout>
+
+#undef signals
+
+#include <gtk/gtk.h>
+#include <gdk/gdkx.h>
+
+#include "./suil_config.h"
+#include "./suil_internal.h"
+
+extern "C" {
+
+typedef struct _SuilGtk2InQt5Wrapper SuilGtk2InQt5Wrapper;
+
+struct _SuilGtk2InQt5Wrapper {
+ QWidget* host_widget;
+ QWidget* parent;
+ GtkWidget* plug;
+};
+
+static void
+on_size_request(GtkWidget* widget,
+ GtkRequisition* requisition,
+ gpointer user_data)
+{
+ QWidget* const wrap = (QWidget*)user_data;
+ wrap->setMinimumSize(requisition->width, requisition->height);
+}
+
+static void
+on_size_allocate(GtkWidget* widget,
+ GdkRectangle* allocation,
+ gpointer user_data)
+{
+ QWidget* const wrap = (QWidget*)user_data;
+ wrap->resize(allocation->width, allocation->height);
+}
+
+static void
+wrapper_free(SuilWrapper* wrapper)
+{
+ SuilGtk2InQt5Wrapper* impl = (SuilGtk2InQt5Wrapper*)wrapper->impl;
+
+ if (impl->plug) {
+ gtk_widget_destroy(impl->plug);
+ }
+
+ if (impl->host_widget) {
+ delete impl->host_widget;
+ }
+
+ free(impl);
+}
+
+static int
+wrapper_wrap(SuilWrapper* wrapper,
+ SuilInstance* instance)
+{
+ Qt::WindowFlags wflags = Qt::Window
+ | Qt::CustomizeWindowHint
+ | Qt::WindowTitleHint
+ | Qt::WindowSystemMenuHint
+ | Qt::WindowMinMaxButtonsHint
+ | Qt::WindowCloseButtonHint;
+
+ SuilGtk2InQt5Wrapper* const impl = (SuilGtk2InQt5Wrapper*)wrapper->impl;
+ QWidget* parent = static_cast<QWidget*>(impl->parent);
+ QWidget* const wrap = new QWidget(parent, wflags);
+ GtkWidget* const plug = gtk_plug_new(0);
+ GtkWidget* const widget = (GtkWidget*)instance->ui_widget;
+
+ gtk_container_add(GTK_CONTAINER(plug), widget);
+ gtk_widget_show_all(plug);
+
+ const WId wid = gtk_plug_get_id((GtkPlug *)plug);
+ QWindow* window = QWindow::fromWinId(wid);
+ QWidget* container = QWidget::createWindowContainer(window, wrap);
+ QVBoxLayout* layout = new QVBoxLayout();
+ layout->setMargin(0);
+ layout->setSpacing(0);
+ layout->addWidget(container);
+ wrap->setLayout(layout);
+
+#ifdef SUIL_OLD_GTK
+ wrap->resize(widget->allocation.width, widget->allocation.height);
+#else
+ GtkAllocation alloc;
+ gtk_widget_get_allocation(widget, &alloc);
+ wrap->resize(alloc.width, alloc.height);
+#endif
+
+ g_signal_connect(
+ G_OBJECT(plug), "size-request", G_CALLBACK(on_size_request), wrap);
+
+ g_signal_connect(
+ G_OBJECT(plug), "size-allocate", G_CALLBACK(on_size_allocate), wrap);
+
+ impl->host_widget = wrap;
+ impl->plug = plug;
+ instance->host_widget = wrap;
+
+ return 0;
+}
+
+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)
+{
+ /* We have to open libgtk here, so Gtk type symbols are present and will be
+ found by the introspection stuff. This is required at least to make
+ GtkBuilder use in UIs work, otherwise they will cause "Invalid object
+ type" errors.
+ */
+ if (!host->gtk_lib) {
+ dlerror();
+ host->gtk_lib = dlopen(SUIL_GTK2_LIB_NAME, RTLD_LAZY|RTLD_GLOBAL);
+ if (!host->gtk_lib) {
+ SUIL_ERRORF("Failed to open %s (%s)\n",
+ SUIL_GTK2_LIB_NAME, dlerror());
+ return NULL;
+ }
+ gtk_init(NULL, NULL);
+ }
+
+ /* Create wrapper implementation. */
+ SuilGtk2InQt5Wrapper* const impl = (SuilGtk2InQt5Wrapper*)
+ calloc(1, sizeof(SuilGtk2InQt5Wrapper));
+
+ /* Set parent widget if given. */
+ for (unsigned i = 0; i < n_features; ++i) {
+ if (!strcmp((*features)[i]->URI, LV2_UI__parent)) {
+ impl->parent = static_cast<QWidget*>((*features)[i]->data);
+ }
+ }
+
+ SuilWrapper* wrapper = (SuilWrapper*)calloc(1, sizeof(SuilWrapper));
+ wrapper->wrap = wrapper_wrap;
+ wrapper->free = wrapper_free;
+ wrapper->impl = impl;
+
+ return wrapper;
+}
+
+} // extern "C"