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livetrax/gtk2_ardour/vst_pluginui.cc

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/*
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/gtk.h>
#include <gtk/gtksocket.h>
#include "ardour/plugin_insert.h"
#include "ardour/vst_plugin.h"
#include "vst_pluginui.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.set_spacing (6);
preset_box.set_border_width (6);
preset_box.pack_end (focus_button, false, false);
preset_box.pack_end (bypass_button, false, false, 10);
preset_box.pack_end (delete_button, false, false);
preset_box.pack_end (save_button, false, false);
preset_box.pack_end (add_button, false, false);
preset_box.pack_end (_preset_box, false, false);
bypass_button.set_active (!insert->active());
pack_start (preset_box, false, false);
pack_start (socket, true, true);
pack_start (plugin_analysis_expander, true, true);
}
VSTPluginUI::~VSTPluginUI ()
{
// plugin destructor destroys the custom GUI, via Windows fun-and-games,
// and then our PluginUIWindow does the rest
}
void
VSTPluginUI::preset_selected ()
{
socket.grab_focus ();
PlugUIBase::preset_selected ();
}
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 (sigc::bind (sigc::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()));
fst_move_window_into_view (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;
}
void
VSTPluginUI::forward_key_event (GdkEventKey* ev)
{
if (ev->type == GDK_KEY_PRESS) {
FST* fst = vst->fst ();
pthread_mutex_lock (&fst->lock);
if (fst->n_pending_keys == (sizeof (fst->pending_keys) * sizeof (FSTKey))) {
/* buffer full */
return;
}
int special_windows_key = 0;
int character_windows_key = 0;
switch (ev->keyval) {
case GDK_Left:
special_windows_key = 0x25;
break;
case GDK_Right:
special_windows_key = 0x27;
break;
case GDK_Up:
special_windows_key = 0x26;
break;
case GDK_Down:
special_windows_key = 0x28;
break;
case GDK_Return:
case GDK_KP_Enter:
special_windows_key = 0xd;
break;
default:
character_windows_key = ev->keyval;
break;
}
fst->pending_keys[fst->n_pending_keys].special = special_windows_key;
fst->pending_keys[fst->n_pending_keys].character = character_windows_key;
fst->n_pending_keys++;
pthread_mutex_unlock (&fst->lock);
}
}
typedef int (*error_handler_t)( Display *, XErrorEvent *);
static Display *the_gtk_display;
static error_handler_t wine_error_handler;
static error_handler_t gtk_error_handler;
static int
fst_xerror_handler( Display *disp, XErrorEvent *ev )
{
if (disp == the_gtk_display) {
printf ("relaying error to gtk\n");
return gtk_error_handler (disp, ev);
} else {
printf( "relaying error to wine\n" );
return wine_error_handler (disp, ev);
}
}
void
gui_init (int *argc, char **argv[])
{
wine_error_handler = XSetErrorHandler (NULL);
gtk_init (argc, argv);
the_gtk_display = gdk_x11_display_get_xdisplay (gdk_display_get_default());
gtk_error_handler = XSetErrorHandler( fst_xerror_handler );
}