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vst_pluginui.cc

/*
    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.

*/

#include <fst.h>
#include <gtk/gtksocket.h>
#include <ardour/insert.h>
#include <ardour/vst_plugin.h>

#include "plugin_ui.h"

#include <gdk/gdkx.h>

using namespace Gtk;
using namespace ARDOUR;
using namespace PBD;

VSTPluginUI::VSTPluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<VSTPlugin> vp)
      : PlugUIBase (pi),
        vst (vp)
{
      fst_run_editor (vst->fst());

      preset_box.pack_end (bypass_button, false, false, 10);
      preset_box.pack_end (save_button, false, false);
      preset_box.pack_end (combo, false, false);

      bypass_button.set_active (!insert->active());
      
      pack_start (preset_box, false, false);
      pack_start (socket, true, true);
}

VSTPluginUI::~VSTPluginUI ()
{
      // nothing to do here - plugin destructor destroys the GUI
}

int
VSTPluginUI::get_preferred_height ()
{
      return vst->fst()->height;
}

int
VSTPluginUI::get_preferred_width ()
{
      return vst->fst()->width;
}

int
VSTPluginUI::package (Gtk::Window& win)
{
      /* forward configure events to plugin window */

      win.signal_configure_event().connect (bind (mem_fun (*this, &VSTPluginUI::configure_handler), &socket), false);

      /*
         this assumes that the window's owner understands the XEmbed protocol.
      */
      
      socket.add_id (fst_get_XID (vst->fst()));

      return 0;
}

bool
VSTPluginUI::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;
}


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