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livetrax/gtk2_ardour/vst_plugin_ui.cc

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/*
* Copyright (C) 2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2012-2013 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2014-2015 David Robillard <d@drobilla.net>
* Copyright (C) 2014-2019 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <gtkmm.h>
#include "ardour/auditioner.h"
#include "ardour/session.h"
#include "ardour/vst_plugin.h"
#include "ardour/vst_types.h"
#include "ardour/plugin_insert.h"
#include "vst_plugin_ui.h"
#ifdef PLATFORM_WINDOWS
#include <gdk/gdkwin32.h>
#elif defined __APPLE__
// TODO
#else
#include <gdk/gdkx.h>
#endif
VSTPluginUI::VSTPluginUI (std::shared_ptr<ARDOUR::PlugInsertBase> pib, std::shared_ptr<ARDOUR::VSTPlugin> plugin)
: PlugUIBase (pib)
, _vst (plugin)
{
Gtk::HBox* box = manage (new Gtk::HBox);
box->set_spacing (6);
box->set_border_width (6);
add_common_widgets (box);
pack_start (*box, false, false);
box->signal_size_allocate().connect (sigc::mem_fun (*this, &VSTPluginUI::top_box_allocated));
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#ifdef GDK_WINDOWING_X11
pack_start (_socket, true, true);
_socket.set_border_width (0);
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#endif
}
VSTPluginUI::~VSTPluginUI ()
{
}
void
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VSTPluginUI::preset_selected (ARDOUR::Plugin::PresetRecord preset)
{
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#ifdef GDK_WINDOWING_X11
_socket.grab_focus ();
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#endif
PlugUIBase::preset_selected (preset);
}
int
VSTPluginUI::get_preferred_height ()
{
return _vst->state()->height + _vst->state()->voffset;
}
int
VSTPluginUI::get_preferred_width ()
{
return _vst->state()->width + _vst->state()->hoffset;
}
int
VSTPluginUI::package (Gtk::Window& win)
{
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#ifdef GDK_WINDOWING_X11
/* Forward configure events to plugin window */
win.signal_configure_event().connect (sigc::mem_fun (*this, &VSTPluginUI::configure_handler), false);
/* This assumes that the window's owner understands the XEmbed protocol */
_socket.add_id (get_XID ());
_socket.set_size_request(
_vst->state()->width + _vst->state()->hoffset,
_vst->state()->height + _vst->state()->voffset);
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#endif
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return 0;
}
bool
VSTPluginUI::on_window_show(const std::string& title)
{
_vst->state()->gui_shown = 1;
return PlugUIBase::on_window_show(title);
}
void
VSTPluginUI::on_window_hide()
{
_vst->state()->gui_shown = 0;
PlugUIBase::on_window_hide();
}
bool
VSTPluginUI::configure_handler (GdkEventConfigure*)
{
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#ifdef GDK_WINDOWING_X11
XEvent event;
gint x, y;
GdkWindow* w;
Window xw = _vst->state()->linux_plugin_ui_window;
if ((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);
/* if the plugin does adds itself to the parent,
* but ardour re-parents it, we have a pointer to
* the socket's child and need to resize the
* child window (e.g. JUCE, u-he)
*/
if (xw) {
XMoveResizeWindow (GDK_WINDOW_XDISPLAY (w), xw,
0, 0, _vst->state()->width, _vst->state()->height);
XMapRaised (GDK_WINDOW_XDISPLAY (w), xw);
XFlush (GDK_WINDOW_XDISPLAY (w));
}
gdk_error_trap_pop ();
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#endif
return false;
}
bool
VSTPluginUI::dispatch_effeditkey (GdkEventKey* gdk_key)
{
int effopcode;
switch (gdk_key->type) {
case GDK_KEY_PRESS:
effopcode = 59; // effEditKeyDown
break;
case GDK_KEY_RELEASE:
effopcode = 60; // effEditKeyUp
break;
default:
return false;
}
/* see https://github.com/DISTRHO/DPF/blob/master/distrho/src/DistrhoPluginVST.cpp
* and https://github.com/steinbergmedia/vstgui/blob/develop/vstgui/lib/vstkeycode.h#L19
*/
int special_key = 0;
int ascii_key = 0;
switch (gdk_key->keyval) {
case GDK_BackSpace:
special_key = 1;
break;
case GDK_Tab:
case GDK_KP_Tab:
special_key = 2;
break;
case GDK_Return:
special_key = 4;
break;
case GDK_KP_Enter:
special_key = 19;
break;
case GDK_Escape:
special_key = 6;
break;
case GDK_KP_Space:
special_key = 7;
break;
case GDK_End:
case GDK_KP_End:
special_key = 9;
break;
case GDK_Home:
case GDK_KP_Home:
special_key = 10;
break;
case GDK_Left:
special_key = 11;
break;
case GDK_Up:
special_key = 12;
break;
case GDK_Right:
special_key = 13;
break;
case GDK_Down:
special_key = 14;
break;
case GDK_Page_Up:
case GDK_KP_Page_Up:
special_key = 15;
break;
case GDK_Page_Down:
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/* fallthrough */
case GDK_KP_Page_Down:
special_key = 16;
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break;
case GDK_Insert:
special_key = 21;
break;
case GDK_Delete:
case GDK_KP_Delete:
special_key = 22;
break;
case GDK_Shift_L:
case GDK_Shift_R:
special_key = 54;
break;
case GDK_Control_L:
case GDK_Control_R:
special_key = 55;
break;
case GDK_Alt_L:
case GDK_Alt_R:
special_key = 56;
break;
case GDK_F1: special_key = 40; break;
case GDK_F2: special_key = 41; break;
case GDK_F3: special_key = 42; break;
case GDK_F4: special_key = 43; break;
case GDK_F5: special_key = 44; break;
case GDK_F6: special_key = 45; break;
case GDK_F7: special_key = 46; break;
case GDK_F8: special_key = 47; break;
case GDK_F9: special_key = 48; break;
case GDK_F10: special_key = 49; break;
case GDK_F11: special_key = 50; break;
case GDK_F12: special_key = 51; break;
default:
ascii_key = gdk_key->keyval;
break;
}
if (special_key > 0 || ascii_key > 0) {
VSTState* vstfx = _vst->state();
/* expect non-zero return if key was handled */
return 0 != vstfx->plugin->dispatcher (vstfx->plugin, effopcode, (int)ascii_key, (intptr_t)special_key, NULL, 0);
}
return false;
}