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/plugin_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         create_preset_store ();
  39
  40         fst_run_editor (vst->fst());
  41
  42         preset_box.set_spacing (6);
  43         preset_box.set_border_width (6);
  44         preset_box.pack_end (bypass_button, false, false, 10);
  45         preset_box.pack_end (save_button, false, false);
  46         preset_box.pack_end (vst_preset_combo, false, false);
  47
  48         vst_preset_combo.signal_changed().connect (sigc::mem_fun (*this, &VSTPluginUI::preset_chosen));
  49
  50         bypass_button.set_active (!insert->active());
  51
  52         pack_start (preset_box, false, false);
  53         pack_start (socket, true, true);
  54         pack_start (plugin_analysis_expander, true, true);
  55 }
  56
  57 VSTPluginUI::~VSTPluginUI ()
  58 {
  59         // plugin destructor destroys the custom GUI, via Windows fun-and-games,
  60         // and then our PluginUIWindow does the rest
  61 }
  62
  63 void
  64 VSTPluginUI::preset_chosen ()
  65 {
  66         // we can't dispatch directly here, too many plugins only expects one GUI thread.
  67         vst->fst()->want_program = vst_preset_combo.get_active_row_number ();
  68         socket.grab_focus ();
  69 }
  70
  71 int
  72 VSTPluginUI::get_preferred_height ()
  73 {
  74         return vst->fst()->height;
  75 }
  76
  77 int
  78 VSTPluginUI::get_preferred_width ()
  79 {
  80         return vst->fst()->width;
  81 }
  82
  83 int
  84 VSTPluginUI::package (Gtk::Window& win)
  85 {
  86         /* forward configure events to plugin window */
  87
  88         win.signal_configure_event().connect (sigc::bind (sigc::mem_fun (*this, &VSTPluginUI::configure_handler), &socket), false);
  89
  90         /*
  91            this assumes that the window's owner understands the XEmbed protocol.
  92         */
  93
  94         socket.add_id (fst_get_XID (vst->fst()));
  95
  96         fst_move_window_into_view (vst->fst());
  97
  98         return 0;
  99 }
 100
 101 bool
 102 VSTPluginUI::configure_handler (GdkEventConfigure* ev, Gtk::Socket *socket)
 103 {
 104         XEvent event;
 105         gint x, y;
 106         GdkWindow* w;
 107
 108         if (socket == 0 || ((w = socket->gobj()->plug_window) == 0)) {
 109                 return false;
 110         }
 111
 112         event.xconfigure.type = ConfigureNotify;
 113         event.xconfigure.event = GDK_WINDOW_XWINDOW (w);
 114         event.xconfigure.window = GDK_WINDOW_XWINDOW (w);
 115
 116         /* The ICCCM says that synthetic events should have root relative
 117          * coordinates. We still aren't really ICCCM compliant, since
 118          * we don't send events when the real toplevel is moved.
 119          */
 120         gdk_error_trap_push ();
 121         gdk_window_get_origin (w, &x, &y);
 122         gdk_error_trap_pop ();
 123
 124         event.xconfigure.x = x;
 125         event.xconfigure.y = y;
 126         event.xconfigure.width = GTK_WIDGET(socket->gobj())->allocation.width;
 127         event.xconfigure.height = GTK_WIDGET(socket->gobj())->allocation.height;
 128
 129         event.xconfigure.border_width = 0;
 130         event.xconfigure.above = None;
 131         event.xconfigure.override_redirect = False;
 132
 133         gdk_error_trap_push ();
 134         XSendEvent (GDK_WINDOW_XDISPLAY (w), GDK_WINDOW_XWINDOW (w), False, StructureNotifyMask, &event);
 135         gdk_error_trap_pop ();
 136
 137         return false;
 138 }
 139
 140 void
 141 VSTPluginUI::create_preset_store ()
 142 {
 143         FST *fst = vst->fst();
 144         int vst_version = fst->plugin->dispatcher (fst->plugin, effGetVstVersion, 0, 0, NULL, 0.0f);
 145
 146         preset_model = ListStore::create (preset_columns);
 147
 148         for (int i = 0; i < fst->plugin->numPrograms; ++i) {
 149                 char buf[100];
 150                 TreeModel::Row row = *(preset_model->append());
 151
 152                 snprintf (buf, 90, "preset %d", i);
 153
 154                 if (vst_version >= 2) {
 155                         fst->plugin->dispatcher (fst->plugin, 29, i, 0, buf, 0.0);
 156                 }
 157
 158                 row[preset_columns.name] = buf;
 159                 row[preset_columns.number] = i;
 160         }
 161
 162         if (fst->plugin->numPrograms > 0) {
 163                 fst->plugin->dispatcher( fst->plugin, effSetProgram, 0, 0, NULL, 0.0 );
 164         }
 165
 166         vst_preset_combo.set_model (preset_model);
 167
 168         CellRenderer* renderer = manage (new CellRendererText());
 169         vst_preset_combo.pack_start (*renderer, true);
 170         vst_preset_combo.add_attribute (*renderer, "text", 0);
 171
 172         if (vst->fst()->current_program != -1) {
 173                 vst_preset_combo.set_active (vst->fst()->current_program);
 174         } else {
 175                 vst_preset_combo.set_active (0);
 176         }
 177 }
 178
 179 typedef int (*error_handler_t)( Display *, XErrorEvent *);
 180 static Display *the_gtk_display;
 181 static error_handler_t wine_error_handler;
 182 static error_handler_t gtk_error_handler;
 183
 184 static int
 185 fst_xerror_handler( Display *disp, XErrorEvent *ev )
 186 {
 187         if (disp == the_gtk_display) {
 188                 printf ("relaying error to gtk\n");
 189                 return gtk_error_handler (disp, ev);
 190         } else {
 191                 printf( "relaying error to wine\n" );
 192                 return wine_error_handler (disp, ev);
 193         }
 194 }
 195
 196 void
 197 gui_init (int *argc, char **argv[])
 198 {
 199         wine_error_handler = XSetErrorHandler (NULL);
 200         gtk_init (argc, argv);
 201         the_gtk_display = gdk_x11_display_get_xdisplay (gdk_display_get_default());
 202         gtk_error_handler = XSetErrorHandler( fst_xerror_handler );
 203 }
 204