1 files changed, 277 insertions, 0 deletions
diff --git a/gtk2_ardour/lxvst_pluginui.cc b/gtk2_ardour/lxvst_pluginui.cc
new file mode 100755
index 0000000000..dc62d907ae
--- /dev/null
+++ b/gtk2_ardour/lxvst_pluginui.cc
@@ -0,0 +1,277 @@
+/*
+    Copyright (C) 2004 Paul Davis 
+
+    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
+    (at your option) 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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/******************************************************************/
+/*linuxDSP - pluginui variant for LXVST (native Linux VST) Plugins*/
+/******************************************************************/
+
+#include <ardour/vstfx.h>
+#include <gtk/gtk.h>
+#include <gtk/gtksocket.h>
+#include <ardour/processor.h>
+#include <ardour/lxvst_plugin.h>
+
+#include "ardour_ui.h"
+#include "plugin_ui.h"
+#include "lxvst_plugin_ui.h"
+
+#include <gdk/gdkx.h>
+
+#define LXVST_H_FIDDLE 40
+
+using namespace Gtk;
+using namespace ARDOUR;
+using namespace PBD;
+
+LXVSTPluginUI::LXVSTPluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LXVSTPlugin> lxvp)
+	: PlugUIBase (pi),
+	  lxvst (lxvp)
+{
+	create_preset_store ();
+
+	vstfx_run_editor (lxvst->vstfx());
+
+	preset_box.set_spacing (6);
+	preset_box.set_border_width (6);
+	preset_box.pack_end (bypass_button, false, false, 10);
+	preset_box.pack_end (save_button, false, false);
+	preset_box.pack_end (lxvst_preset_combo, false, false);
+
+	lxvst_preset_combo.signal_changed().connect (mem_fun (*this, &LXVSTPluginUI::preset_chosen));
+
+	bypass_button.set_active (!insert->active());
+	
+	pack_start (preset_box, false, false);
+	pack_start (socket, true, true);
+}
+
+LXVSTPluginUI::~LXVSTPluginUI ()
+{
+
+	_screen_update_connection.disconnect();	
+	
+	// plugin destructor destroys the custom GUI, via the vstfx engine,
+	// and then our PluginUIWindow does the rest
+}
+
+
+bool
+LXVSTPluginUI::start_updating (GdkEventAny* ignored)
+{
+	_screen_update_connection.disconnect();
+	_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect 
+			(mem_fun(*this, &LXVSTPluginUI::resize_callback));
+	return false;
+}
+
+bool
+LXVSTPluginUI::stop_updating (GdkEventAny* ignored)
+{
+	_screen_update_connection.disconnect();
+	return false;
+}
+
+
+void
+LXVSTPluginUI::resize_callback()
+{
+	/*We could maybe use this to resize the plugin GTK parent window
+	if required*/
+	
+	if(lxvst->vstfx()->want_resize)
+	{
+		int new_height = lxvst->vstfx()->height;
+		int new_width = lxvst->vstfx()->width;
+		
+		void* gtk_parent_window = lxvst->vstfx()->extra_data;
+		
+		if(gtk_parent_window)
+			((Gtk::Window*)gtk_parent_window)->resize(new_width, new_height + LXVST_H_FIDDLE);
+		
+		lxvst->vstfx()->want_resize = 0;
+	}
+}
+
+void
+LXVSTPluginUI::preset_selected ()
+{
+	socket.grab_focus ();
+	PlugUIBase::preset_selected ();
+}
+
+void
+LXVSTPluginUI::preset_chosen ()
+{
+	// we can't dispatch directly here, too many plugins only expects one GUI thread.
+	
+	lxvst->vstfx()->want_program = lxvst_preset_combo.get_active_row_number ();
+	socket.grab_focus ();
+}
+
+int
+LXVSTPluginUI::get_preferred_height ()
+{	
+	/*FIXME*/
+	
+	/*We have to return the required height of the plugin UI window +  a fiddle factor
+	because we can't know how big the preset menu bar is until the window is realised
+	and we can't realise it until we have told it how big we would like it to be
+	which we can't do until it is realised etc*/
+
+	return (lxvst->vstfx()->height) + LXVST_H_FIDDLE; //May not be 40 for all screen res etc
+}
+
+int
+LXVSTPluginUI::get_preferred_width ()
+{
+	return lxvst->vstfx()->width;
+}
+
+int
+LXVSTPluginUI::package (Gtk::Window& win)
+{
+	/* forward configure events to plugin window */
+
+	win.signal_configure_event().connect (bind (mem_fun (*this, &LXVSTPluginUI::configure_handler), &socket), false);
+	
+	/*Map the UI start and stop updating events to 'Map' events on the Window*/
+	
+	win.signal_map_event().connect (mem_fun (*this, &LXVSTPluginUI::start_updating));
+	win.signal_unmap_event().connect (mem_fun (*this, &LXVSTPluginUI::stop_updating));
+
+	/* this assumes that the window's owner understands the XEmbed protocol. */
+	
+	socket.add_id (vstfx_get_XID (lxvst->vstfx()));
+
+	vstfx_move_window_into_view (lxvst->vstfx());
+	
+	lxvst->vstfx()->extra_data = (void*)(&win);
+	lxvst->vstfx()->want_resize = 0;
+
+	return 0;
+}
+
+bool
+LXVSTPluginUI::configure_handler (GdkEventConfigure* ev, Gtk::Socket *socket)
+{
+	XEvent event;
+	gint x, y;
+	GdkWindow* w;
+
+	if (socket == 0 || ((w = socket->gobj()->plug_window) == 0)) {
+		return false;
+	}
+
+	event.xconfigure.type = ConfigureNotify;
+	event.xconfigure.event = GDK_WINDOW_XWINDOW (w);
+	event.xconfigure.window = GDK_WINDOW_XWINDOW (w);
+
+	/* The ICCCM says that synthetic events should have root relative
+	 * coordinates. We still aren't really ICCCM compliant, since
+	 * we don't send events when the real toplevel is moved.
+	 */
+	gdk_error_trap_push ();
+	gdk_window_get_origin (w, &x, &y);
+	gdk_error_trap_pop ();
+
+	event.xconfigure.x = x;
+	event.xconfigure.y = y;
+	event.xconfigure.width = GTK_WIDGET(socket->gobj())->allocation.width;
+	event.xconfigure.height = GTK_WIDGET(socket->gobj())->allocation.height;
+
+	event.xconfigure.border_width = 0;
+	event.xconfigure.above = None;
+	event.xconfigure.override_redirect = False;
+
+	gdk_error_trap_push ();
+	XSendEvent (GDK_WINDOW_XDISPLAY (w), GDK_WINDOW_XWINDOW (w), False, StructureNotifyMask, &event);
+	gdk_error_trap_pop ();
+
+	return false;
+}
+
+void
+LXVSTPluginUI::forward_key_event (GdkEventKey* ev)
+{
+	std::cerr << "LXVSTPluginUI : keypress forwarding to linuxVSTs unsupported" << std::endl;
+}
+
+
+void
+LXVSTPluginUI::create_preset_store ()
+{
+	VSTFX* vstfx = lxvst->vstfx();
+	
+	int vst_version = vstfx->plugin->dispatcher (vstfx->plugin, effGetVstVersion, 0, 0, NULL, 0.0f);
+
+	preset_model = ListStore::create (preset_columns);
+
+	for (int i = 0; i < vstfx->plugin->numPrograms; ++i) {
+		char buf[100];
+		TreeModel::Row row = *(preset_model->append());
+	
+		snprintf (buf, 90, "preset %d", i);
+	
+		if (vst_version >= 2) {
+			vstfx->plugin->dispatcher (vstfx->plugin, 29, i, 0, buf, 0.0);
+		}
+		
+		row[preset_columns.name] = buf;
+		row[preset_columns.number] = i;
+	}
+	
+	if (vstfx->plugin->numPrograms > 0) {
+		vstfx->plugin->dispatcher( vstfx->plugin, effSetProgram, 0, 0, NULL, 0.0 );
+	}
+	
+	lxvst_preset_combo.set_model (preset_model);
+
+	CellRenderer* renderer = manage (new CellRendererText());
+	lxvst_preset_combo.pack_start (*renderer, true);
+	lxvst_preset_combo.add_attribute (*renderer, "text", 0);
+
+	if (lxvst->vstfx()->current_program != -1) {
+		lxvst_preset_combo.set_active (lxvst->vstfx()->current_program);
+	} else {
+		lxvst_preset_combo.set_active (0);
+	}
+}
+
+typedef int (*error_handler_t)( Display *, XErrorEvent *);
+static Display *the_gtk_display;
+static error_handler_t vstfx_error_handler;
+static error_handler_t gtk_error_handler;
+
+static int 
+gtk_xerror_handler( Display *disp, XErrorEvent *ev )
+{
+	std::cerr << "** ERROR ** LXVSTPluginUI : Trapped an X Window System Error" << std::endl;
+	
+	return 0;
+}
+
+void
+gui_init (int *argc, char **argv[])
+{
+	vstfx_error_handler = XSetErrorHandler (NULL);
+	gtk_init (argc, argv);
+	the_gtk_display = gdk_x11_display_get_xdisplay (gdk_display_get_default());
+	gtk_error_handler = XSetErrorHandler( gtk_xerror_handler );
+}
+