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 "vst_pluginui.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.set_spacing (6);
  41         preset_box.set_border_width (6);
  42         preset_box.pack_end (focus_button, false, false);
  43         preset_box.pack_end (bypass_button, false, false, 10);
  44         preset_box.pack_end (delete_button, false, false);
  45         preset_box.pack_end (save_button, false, false);
  46         preset_box.pack_end (add_button, false, false);
  47         preset_box.pack_end (_preset_box, false, false);
  48
  49         bypass_button.set_active (!insert->active());
  50
  51         pack_start (preset_box, false, false);
  52         pack_start (socket, true, true);
  53         pack_start (plugin_analysis_expander, true, true);
  54 }
  55
  56 VSTPluginUI::~VSTPluginUI ()
  57 {
  58         // plugin destructor destroys the custom GUI, via Windows fun-and-games,
  59         // and then our PluginUIWindow does the rest
  60 }
  61
  62 void
  63 VSTPluginUI::preset_selected ()
  64 {
  65         socket.grab_focus ();
  66         PlugUIBase::preset_selected ();
  67 }
  68
  69 int
  70 VSTPluginUI::get_preferred_height ()
  71 {
  72         return vst->fst()->height;
  73 }
  74
  75 int
  76 VSTPluginUI::get_preferred_width ()
  77 {
  78         return vst->fst()->width;
  79 }
  80
  81 int
  82 VSTPluginUI::package (Gtk::Window& win)
  83 {
  84         /* forward configure events to plugin window */
  85
  86         win.signal_configure_event().connect (sigc::bind (sigc::mem_fun (*this, &VSTPluginUI::configure_handler), &socket), false);
  87
  88         /*
  89            this assumes that the window's owner understands the XEmbed protocol.
  90         */
  91
  92         socket.add_id (fst_get_XID (vst->fst()));
  93
  94         fst_move_window_into_view (vst->fst());
  95
  96         return 0;
  97 }
  98
  99 bool
 100 VSTPluginUI::configure_handler (GdkEventConfigure* ev, Gtk::Socket *socket)
 101 {
 102         XEvent event;
 103         gint x, y;
 104         GdkWindow* w;
 105
 106         if (socket == 0 || ((w = socket->gobj()->plug_window) == 0)) {
 107                 return false;
 108         }
 109
 110         event.xconfigure.type = ConfigureNotify;
 111         event.xconfigure.event = GDK_WINDOW_XWINDOW (w);
 112         event.xconfigure.window = GDK_WINDOW_XWINDOW (w);
 113
 114         /* The ICCCM says that synthetic events should have root relative
 115          * coordinates. We still aren't really ICCCM compliant, since
 116          * we don't send events when the real toplevel is moved.
 117          */
 118         gdk_error_trap_push ();
 119         gdk_window_get_origin (w, &x, &y);
 120         gdk_error_trap_pop ();
 121
 122         event.xconfigure.x = x;
 123         event.xconfigure.y = y;
 124         event.xconfigure.width = GTK_WIDGET(socket->gobj())->allocation.width;
 125         event.xconfigure.height = GTK_WIDGET(socket->gobj())->allocation.height;
 126
 127         event.xconfigure.border_width = 0;
 128         event.xconfigure.above = None;
 129         event.xconfigure.override_redirect = False;
 130
 131         gdk_error_trap_push ();
 132         XSendEvent (GDK_WINDOW_XDISPLAY (w), GDK_WINDOW_XWINDOW (w), False, StructureNotifyMask, &event);
 133         gdk_error_trap_pop ();
 134
 135         return false;
 136 }
 137
 138 void
 139 VSTPluginUI::forward_key_event (GdkEventKey* ev)
 140 {
 141         if (ev->type == GDK_KEY_PRESS) {
 142
 143                 FST* fst = vst->fst ();
 144                 pthread_mutex_lock (&fst->lock);
 145
 146                 if (fst->n_pending_keys == (sizeof (fst->pending_keys) * sizeof (FSTKey))) {
 147                         /* buffer full */
 148                         return;
 149                 }
 150
 151                 int special_windows_key = 0;
 152                 int character_windows_key = 0;
 153
 154                 switch (ev->keyval) {
 155                 case GDK_Left:
 156                         special_windows_key = 0x25;
 157                         break;
 158                 case GDK_Right:
 159                         special_windows_key = 0x27;
 160                         break;
 161                 case GDK_Up:
 162                         special_windows_key = 0x26;
 163                         break;
 164                 case GDK_Down:
 165                         special_windows_key = 0x28;
 166                         break;
 167                 case GDK_Return:
 168                 case GDK_KP_Enter:
 169                         special_windows_key = 0xd;
 170                         break;
 171                 default:
 172                         character_windows_key = ev->keyval;
 173                         break;
 174                 }
 175
 176                 fst->pending_keys[fst->n_pending_keys].special = special_windows_key;
 177                 fst->pending_keys[fst->n_pending_keys].character = character_windows_key;
 178                 fst->n_pending_keys++;
 179
 180                 pthread_mutex_unlock (&fst->lock);
 181         }
 182 }
 183
 184 typedef int (*error_handler_t)( Display *, XErrorEvent *);
 185 static Display *the_gtk_display;
 186 static error_handler_t wine_error_handler;
 187 static error_handler_t gtk_error_handler;
 188
 189 static int
 190 fst_xerror_handler( Display *disp, XErrorEvent *ev )
 191 {
 192         if (disp == the_gtk_display) {
 193                 printf ("relaying error to gtk\n");
 194                 return gtk_error_handler (disp, ev);
 195         } else {
 196                 printf( "relaying error to wine\n" );
 197                 return wine_error_handler (disp, ev);
 198         }
 199 }
 200
 201 void
 202 gui_init (int *argc, char **argv[])
 203 {
 204         wine_error_handler = XSetErrorHandler (NULL);
 205         gtk_init (argc, argv);
 206         the_gtk_display = gdk_x11_display_get_xdisplay (gdk_display_get_default());
 207         gtk_error_handler = XSetErrorHandler( fst_xerror_handler );
 208 }
 209