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authorDavid Robillard <d@drobilla.net>2012-08-03 01:57:22 +0000
committerDavid Robillard <d@drobilla.net>2012-08-03 01:57:22 +0000
commiteb33777e6ab2f9ebd5f398bb9c9a9ae92ac3531d (patch)
tree393f9b51f56cced6f7a09186178328d16cdee62f /src/win_in_gtk2.c
parent0bb37e7451f42fe82b28145455a71c56c92174b8 (diff)
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Support for embedding native Windows UIs in Gtk2.
git-svn-id: http://svn.drobilla.net/lad/trunk/suil@4603 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/win_in_gtk2.c')
-rw-r--r--src/win_in_gtk2.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/src/win_in_gtk2.c b/src/win_in_gtk2.c
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@@ -0,0 +1,161 @@
+/*
+ Copyright 2011-2012 David Robillard <http://drobilla.net>
+
+ 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 <string.h>
+
+#include <gtk/gtk.h>
+#include <gdk/gdkwin32.h>
+
+#include "./suil_internal.h"
+
+#define SUIL_TYPE_WIN_WRAPPER (suil_win_wrapper_get_type())
+#define SUIL_WIN_WRAPPER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), SUIL_TYPE_WIN_WRAPPER, SuilWinWrapper))
+
+typedef struct _SuilWinWrapper SuilWinWrapper;
+typedef struct _SuilWinWrapperClass SuilWinWrapperClass;
+
+struct _SuilWinWrapper {
+ GtkDrawingArea area;
+ SuilWrapper* wrapper;
+ SuilInstance* instance;
+};
+
+struct _SuilWinWrapperClass {
+ GtkDrawingAreaClass parent_class;
+};
+
+GType suil_win_wrapper_get_type(void); // Accessor for SUIL_TYPE_WIN_WRAPPER
+
+G_DEFINE_TYPE(SuilWinWrapper, suil_win_wrapper, GTK_TYPE_DRAWING_AREA)
+
+static void
+suil_win_wrapper_finalize(GObject* gobject)
+{
+ SuilWinWrapper* const self = SUIL_WIN_WRAPPER(gobject);
+
+ self->wrapper->impl = NULL;
+
+ G_OBJECT_CLASS(suil_win_wrapper_parent_class)->finalize(gobject);
+}
+
+static void
+suil_win_wrapper_class_init(SuilWinWrapperClass* klass)
+{
+ GObjectClass* const gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = suil_win_wrapper_finalize;
+}
+
+static void
+suil_win_wrapper_init(SuilWinWrapper* self)
+{
+ self->instance = NULL;
+}
+
+GdkFilterReturn
+event_filter(GdkXEvent* xevent, GdkEvent* event, gpointer data)
+{
+ SuilWinWrapper* wrap = (SuilWinWrapper*)data;
+ MSG* msg = (MSG*)xevent;
+ if (msg->message == WM_KEYDOWN || msg->message == WM_KEYUP) {
+ // Forward keyboard events to UI window
+ PostMessage((HWND)wrap->instance->ui_widget,
+ msg->message, msg->wParam, msg->lParam);
+ }
+ return GDK_FILTER_CONTINUE;
+}
+
+static int
+wrapper_resize(LV2UI_Feature_Handle handle, int width, int height)
+{
+ gtk_drawing_area_size(GTK_DRAWING_AREA(handle), width, height);
+ return 0;
+}
+
+static int
+wrapper_wrap(SuilWrapper* wrapper,
+ SuilInstance* instance)
+{
+ SuilWinWrapper* const wrap = SUIL_WIN_WRAPPER(wrapper->impl);
+
+ instance->host_widget = GTK_WIDGET(wrap);
+ wrap->wrapper = wrapper;
+ wrap->instance = instance;
+
+ return 0;
+}
+
+static void
+wrapper_free(SuilWrapper* wrapper)
+{
+ if (wrapper->impl) {
+ SuilWinWrapper* const wrap = SUIL_WIN_WRAPPER(wrapper->impl);
+ gtk_object_destroy(GTK_OBJECT(wrap));
+ }
+}
+
+SUIL_API
+SuilWrapper*
+suil_wrapper_new(SuilHost* host,
+ const char* host_type_uri,
+ const char* ui_type_uri,
+ LV2_Feature*** features,
+ unsigned n_features)
+{
+ GtkWidget* parent = NULL;
+ for (unsigned i = 0; i < n_features; ++i) {
+ if (!strcmp((*features)[i]->URI, LV2_UI__parent)) {
+ parent = (GtkWidget*)(*features)[i]->data;
+ }
+ }
+
+ if (!GTK_CONTAINER(parent)) {
+ SUIL_ERRORF("No GtkContainer parent given for %s UI\n",
+ ui_type_uri);
+ return NULL;
+ }
+
+ SuilWrapper* wrapper = (SuilWrapper*)malloc(sizeof(SuilWrapper));
+ wrapper->wrap = wrapper_wrap;
+ wrapper->free = wrapper_free;
+
+ SuilWinWrapper* const wrap = SUIL_WIN_WRAPPER(
+ g_object_new(SUIL_TYPE_WIN_WRAPPER, NULL));
+
+ wrap->wrapper = NULL;
+
+ wrapper->impl = wrap;
+ wrapper->resize.handle = wrap;
+ wrapper->resize.ui_resize = wrapper_resize;
+
+ gtk_container_add(GTK_CONTAINER(parent), GTK_WIDGET(wrap));
+ gtk_widget_set_can_focus(GTK_WIDGET(wrap), TRUE);
+ gtk_widget_set_sensitive(GTK_WIDGET(wrap), TRUE);
+ gtk_widget_realize(GTK_WIDGET(wrap));
+
+ GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(wrap));
+ GdkWindow* parent_window = gtk_widget_get_window(parent);
+ gdk_window_add_filter(parent_window, event_filter, wrap);
+ gdk_window_add_filter(window, event_filter, wrap);
+
+ suil_add_feature(features, &n_features, LV2_UI__parent,
+ GDK_WINDOW_HWND(window));
+
+ suil_add_feature(features, &n_features, LV2_UI__resize,
+ &wrapper->resize);
+
+ return wrapper;
+}