gtk2_ardour/vst_pluginui.cc

   1 /*
   2     Copyright (C) 2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <fst.h>
  21 #include <gtk/gtk.h>
  22 #include <gtk/gtksocket.h>
  23 #include <ardour/insert.h>
  24 #include <ardour/vst_plugin.h>
  25
  26 #include "plugin_ui.h"
  27
  28 #include <gdk/gdkx.h>
  29
  30 using namespace Gtk;
  31 using namespace ARDOUR;
  32 using namespace PBD;
  33
  34 VSTPluginUI::VSTPluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<VSTPlugin> vp)
  35         : PlugUIBase (pi),
  36           vst (vp)
  37 {
  38         fst_run_editor (vst->fst());
  39
  40         preset_box.pack_end (bypass_button, false, false, 10);
  41         preset_box.pack_end (save_button, false, false);
  42         preset_box.pack_end (preset_combo, false, false);
  43
  44         bypass_button.set_active (!insert->active());
  45
  46         pack_start (preset_box, false, false);
  47         pack_start (socket, true, true);
  48 }
  49
  50 VSTPluginUI::~VSTPluginUI ()
  51 {
  52         // nothing to do here - plugin destructor destroys the GUI
  53 }
  54
  55 int
  56 VSTPluginUI::get_preferred_height ()
  57 {
  58         return vst->fst()->height;
  59 }
  60
  61 int
  62 VSTPluginUI::get_preferred_width ()
  63 {
  64         return vst->fst()->width;
  65 }
  66
  67 int
  68 VSTPluginUI::package (Gtk::Window& win)
  69 {
  70         /* forward configure events to plugin window */
  71
  72         win.signal_configure_event().connect (bind (mem_fun (*this, &VSTPluginUI::configure_handler), &socket), false);
  73
  74         /*
  75            this assumes that the window's owner understands the XEmbed protocol.
  76         */
  77
  78         socket.add_id (fst_get_XID (vst->fst()));
  79
  80         fst_move_window_into_view (vst->fst());
  81
  82         return 0;
  83 }
  84
  85 bool
  86 VSTPluginUI::configure_handler (GdkEventConfigure* ev, Gtk::Socket *socket)
  87 {
  88         XEvent event;
  89         gint x, y;
  90         GdkWindow* w;
  91
  92         if (socket == 0 || ((w = socket->gobj()->plug_window) == 0)) {
  93                 return false;
  94         }
  95
  96         event.xconfigure.type = ConfigureNotify;
  97         event.xconfigure.event = GDK_WINDOW_XWINDOW (w);
  98         event.xconfigure.window = GDK_WINDOW_XWINDOW (w);
  99
 100         /* The ICCCM says that synthetic events should have root relative
 101          * coordinates. We still aren't really ICCCM compliant, since
 102          * we don't send events when the real toplevel is moved.
 103          */
 104         gdk_error_trap_push ();
 105         gdk_window_get_origin (w, &x, &y);
 106         gdk_error_trap_pop ();
 107
 108         event.xconfigure.x = x;
 109         event.xconfigure.y = y;
 110         event.xconfigure.width = GTK_WIDGET(socket->gobj())->allocation.width;
 111         event.xconfigure.height = GTK_WIDGET(socket->gobj())->allocation.height;
 112
 113         event.xconfigure.border_width = 0;
 114         event.xconfigure.above = None;
 115         event.xconfigure.override_redirect = False;
 116
 117         gdk_error_trap_push ();
 118         XSendEvent (GDK_WINDOW_XDISPLAY (w), GDK_WINDOW_XWINDOW (w), False, StructureNotifyMask, &event);
 119         gdk_error_trap_pop ();
 120
 121         return false;
 122 }
 123
 124 typedef int (*error_handler_t)( Display *, XErrorEvent *);
 125 static Display *the_gtk_display;
 126 static error_handler_t wine_error_handler;
 127 static error_handler_t gtk_error_handler;
 128
 129 static int
 130 fst_xerror_handler( Display *disp, XErrorEvent *ev )
 131 {
 132         if (disp == the_gtk_display) {
 133                 printf ("relaying error to gtk\n");
 134                 return gtk_error_handler (disp, ev);
 135         } else {
 136                 printf( "relaying error to wine\n" );
 137                 return wine_error_handler (disp, ev);
 138         }
 139 }
 140
 141 void
 142 gui_init (int *argc, char **argv[])
 143 {
 144         wine_error_handler = XSetErrorHandler (NULL);
 145         gtk_init (argc, argv);
 146         the_gtk_display = gdk_x11_display_get_xdisplay (gdk_display_get_default());
 147         gtk_error_handler = XSetErrorHandler( fst_xerror_handler );
 148 }