Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 658 insertions, 0 deletions

diff --git a/gtk2_ardour/panner_ui.cc b/gtk2_ardour/panner_ui.cc
new file mode 100644
index 0000000000..42525466c6
--- /dev/null
+++ b/gtk2_ardour/panner_ui.cc
@@ -0,0 +1,658 @@
+/*
+  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.
+
+  $Id$
+*/
+
+#include <limits.h>
+
+#include <ardour/io.h>
+#include <ardour/dB.h>
+#include <gtkmmext/utils.h>
+#include <gtkmmext/stop_signal.h>
+#include <gtkmmext/barcontroller.h>
+#include <midi++/manager.h>
+#include <pbd/fastlog.h>
+
+#include "ardour_ui.h"
+#include "panner_ui.h"
+#include "panner2d.h"
+#include "utils.h"
+#include "gui_thread.h"
+
+#include <ardour/session.h>
+#include <ardour/route.h>
+#include <ardour/panner.h>
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+using namespace Gtkmmext;
+using namespace Gtk;
+using namespace SigC;
+
+/* XPM */
+static const gchar * forwdblarrow_xpm[] = {
+"20 11 3 1",
+" 	c None",
+".	c #000000",
+"+	c #FFFFFF",
+"              ..    ",
+"              .+.   ",
+"              .++.  ",
+" ..............+++. ",
+" .+++++++++++++++++.",
+" ...................",
+" .+++++++++++++++++.",
+" ..............+++. ",
+"              .++.  ",
+"              .+.   ",
+"              ..    "};
+
+/* XPM */
+static const gchar * revdblarrow_xpm[] = {
+"20 11 3 1",
+" 	c None",
+".	c #000000",
+"+	c #FFFFFF",
+"              ..    ",
+"              .+.   ",
+"              .++.  ",
+" ..............+++. ",
+" .+++++++++++++++++.",
+" ...................",
+" .+++++++++++++++++.",
+"  .+++..............",
+"   .++.             ",
+"    .+.             ",
+"     ..             "};
+
+
+PannerUI::PannerUI (IO& io, Session& s)
+	: _io (io),
+	  _session (s),
+	  panning_up_arrow (GTK_ARROW_UP, GTK_SHADOW_OUT),
+	  panning_down_arrow (GTK_ARROW_DOWN, GTK_SHADOW_OUT),
+	  panning_link_button (_("link"))
+	
+{
+	ignore_toggle = false;
+	pan_menu = 0;
+	in_pan_update = false;
+
+	pan_bar_packer.set_usize (-1, 61);
+	panning_viewport.set_usize (61, 61);
+
+	panning_viewport.set_name (X_("BaseFrame"));
+
+	ARDOUR_UI::instance()->tooltips().set_tip (panning_link_button,
+						   _("panning link control"));
+	ARDOUR_UI::instance()->tooltips().set_tip (panning_link_direction_button,
+						   _("panning link direction"));
+
+	panning_link_box.pack_start (panning_link_button, true, true);
+	panning_link_box.pack_start (panning_link_direction_button, true, true);
+
+	panning_link_button.set_name (X_("PanningLinkButton"));
+	panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
+
+	/* the pixmap will be reset at some point, but the key thing is that
+	   we need a pixmap in the button just to get started.
+	*/
+
+	panning_link_direction_button.add (*(manage (new Pixmap (forwdblarrow_xpm))));
+
+	panning_link_direction_button.clicked.connect
+		(slot (*this, &PannerUI::panning_link_direction_clicked));
+
+	panning_link_button.button_press_event.connect
+		(slot (*this, &PannerUI::panning_link_button_press));
+	panning_link_button.button_release_event.connect
+		(slot (*this, &PannerUI::panning_link_button_release));
+
+	panning_up.set_border_width (3);
+	panning_down.set_border_width (3);
+	panning_up.add (panning_up_arrow);
+	panning_down.add (panning_down_arrow);
+	panning_up.set_name (X_("PanScrollerBase"));
+	panning_down.set_name (X_("PanScrollerBase"));
+	panning_up_arrow.set_name (X_("PanScrollerArrow"));
+	panning_down_arrow.set_name (X_("PanScrollerArrow"));
+
+	pan_vbox.set_spacing (4);
+	pan_vbox.pack_start (panning_viewport, false, false);
+	pan_vbox.pack_start (panning_link_box, false, false);
+
+	pack_start (pan_vbox, true, false);
+	pan_vbox.show_all ();
+	show ();
+
+	panner = 0;
+
+	_io.panner().Changed.connect (slot (*this, &PannerUI::panner_changed));
+	_io.panner().LinkStateChanged.connect (slot (*this, &PannerUI::update_pan_linkage));
+	_io.panner().StateChanged.connect (slot (*this, &PannerUI::update_pan_state));
+
+	pan_changed (0);
+	update_pan_sensitive ();
+	update_pan_linkage ();
+}
+
+gint
+PannerUI::panning_link_button_press (GdkEventButton* ev)
+{
+	return stop_signal (panning_link_button, "button-press-event");
+}
+
+gint
+PannerUI::panning_link_button_release (GdkEventButton* ev)
+{
+	if (!ignore_toggle) {
+		_io.panner().set_linked (!_io.panner().linked());
+	}
+	return TRUE;
+}
+
+void
+PannerUI::panning_link_direction_clicked()
+{
+	switch (_io.panner().link_direction()) {
+	case Panner::SameDirection:
+		_io.panner().set_link_direction (Panner::OppositeDirection);
+		break;
+	default:
+		_io.panner().set_link_direction (Panner::SameDirection);
+		break;
+	}
+}
+
+void
+PannerUI::update_pan_linkage ()
+{
+	ENSURE_GUI_THREAD(slot (*this, &PannerUI::update_pan_linkage));
+	
+	bool x = _io.panner().linked();
+	bool bx = panning_link_button.get_active();
+	
+	if (x != bx) {
+		
+		ignore_toggle = true;
+		panning_link_button.set_active (x);
+		ignore_toggle = false;
+	}
+
+	panning_link_direction_button.set_sensitive (x);
+
+	switch (_io.panner().link_direction()) {
+	case Panner::SameDirection:
+		static_cast<Pixmap*> (panning_link_direction_button.get_child())->set (forwdblarrow_xpm);
+		break;
+	default:
+		static_cast<Pixmap*> (panning_link_direction_button.get_child())->set (revdblarrow_xpm);
+		break;
+	}
+}
+
+void
+PannerUI::set_width (Width w)
+{
+	switch (w) {
+	case Wide:
+		panning_viewport.set_usize (61, 61);
+		if (panner) {
+			panner->set_usize (61, 61);
+		}
+		for (vector<BarController*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
+				(*i)->set_usize (61, 15);
+		}
+		static_cast<Gtk::Label*> (panning_link_button.get_child())->set_text (_("link"));
+		break;
+	case Narrow:
+		panning_viewport.set_usize (31, 61);
+		if (panner) {
+			panner->set_usize (31, 61);
+		}
+		for (vector<BarController*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
+				(*i)->set_usize (31, 15);
+		}
+		static_cast<Gtk::Label*> (panning_link_button.get_child())->set_text (_("L"));
+		break;
+	}
+
+	_width = w;
+}
+
+
+PannerUI::~PannerUI ()
+{
+	for (vector<Adjustment*>::iterator i = pan_adjustments.begin(); i != pan_adjustments.end(); ++i) {
+		delete (*i);
+	}
+	
+	for (vector<BarController*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
+		delete (*i);
+	}
+
+	if (panner) {
+		delete panner;
+	}
+
+	if (pan_menu) {
+		delete pan_menu;
+	}
+
+}
+
+
+gint
+PannerUI::entry_focus_event (GdkEventFocus* ev)
+{
+	if (ev->in) {
+		ARDOUR_UI::instance()->allow_focus (true);
+	} else {
+		ARDOUR_UI::instance()->allow_focus (false);
+	}
+	return TRUE;
+}
+
+void
+PannerUI::panner_changed ()
+{
+	ENSURE_GUI_THREAD (slot (*this, &PannerUI::panner_changed));
+	setup_pan ();
+}
+
+void
+PannerUI::update_pan_state ()
+{
+	/* currently nothing to do */
+	// ENSURE_GUI_THREAD (slot (*this, &PannerUI::update_panner_state));
+}
+
+void
+PannerUI::setup_pan ()
+{
+	uint32_t nouts = _io.n_outputs ();
+
+	if (nouts == 0 || nouts == 1) {
+
+		while (!pan_adjustments.empty()) {
+			delete pan_bars.back();
+			pan_bars.pop_back ();
+			delete pan_adjustments.back();
+			pan_adjustments.pop_back ();
+		}
+
+	} else if (nouts == 2) {
+
+		vector<Adjustment*>::size_type asz;
+		uint32_t npans = _io.panner().size();
+
+		while (!pan_adjustments.empty()) {
+			delete pan_bars.back();
+			pan_bars.pop_back ();
+			delete pan_adjustments.back();
+			pan_adjustments.pop_back ();
+		}
+
+		while ((asz = pan_adjustments.size()) < npans) {
+
+			float x;
+			BarController* bc;
+
+			/* initialize adjustment with current value of panner */
+
+			_io.panner()[asz]->get_position (x);
+
+			pan_adjustments.push_back (new Adjustment (x, 0, 1.0, 0.05, 0.1));
+			pan_adjustments.back()->value_changed.connect (bind (slot (*this, &PannerUI::pan_adjustment_changed), (uint32_t) asz));
+
+			_io.panner()[asz]->Changed.connect (bind (slot (*this, &PannerUI::pan_value_changed), (uint32_t) asz));
+
+			bc = new BarController (*pan_adjustments[asz], 
+						&_io.panner()[asz]->midi_control(),
+						bind (slot (*this, &PannerUI::pan_printer), pan_adjustments[asz]));
+			
+			if (_session.midi_port()) {
+				_io.panner()[asz]->reset_midi_control (_session.midi_port(), true);
+			}
+			
+			bc->set_name ("PanSlider");
+			bc->set_shadow_type (GTK_SHADOW_NONE);
+			bc->set_style (BarController::Line);
+			bc->get_spin_button().focus_in_event.connect (slot (*this, &PannerUI::entry_focus_event));
+			bc->get_spin_button().focus_out_event.connect (slot (*this, &PannerUI::entry_focus_event));
+
+			bc->StartGesture.connect (bind (slot (_io, &IO::start_pan_touch), (uint32_t) asz));
+			bc->StopGesture.connect (bind (slot (_io, &IO::end_pan_touch), (uint32_t) asz));
+
+			char buf[64];
+			snprintf (buf, sizeof (buf), _("panner for channel %u"), asz + 1);
+			ARDOUR_UI::instance()->tooltips().set_tip (bc->event_widget(), buf);
+
+			bc->event_widget().button_release_event.connect
+				(bind (slot (*this, &PannerUI::pan_button_event), (uint32_t) asz));
+
+			pan_bars.push_back (bc);
+			switch (_width) {
+			case Wide:
+				pan_bars.back()->set_usize (61, 15);
+				break;
+			case Narrow:
+				pan_bars.back()->set_usize (31, 15);
+				break;
+			}
+
+			pan_bar_packer.pack_start (*pan_bars.back(), false, false);
+		}
+
+		/* now that we actually have the pan bars,
+		   set their sensitivity based on current
+		   automation state.
+		*/
+
+		update_pan_sensitive ();
+
+		panning_viewport.remove ();
+		panning_viewport.add (pan_bar_packer);
+		panning_viewport.show_all ();
+
+	} else {
+
+		int w = 0;
+
+		switch (_width) {
+		case Wide:
+			w = 61;
+			break;
+		case Narrow:
+			w = 31;
+			break;
+		}
+
+		if (panner == 0) {
+			panner = new Panner2d (_io.panner(), w, 61);
+			panner->set_name ("MixerPanZone");
+			panner->show ();
+		}
+		
+		update_pan_sensitive ();
+		panner->reset (_io.n_inputs());
+		panner->set_usize (w, 61);
+
+		/* and finally, add it to the panner frame */
+
+		panning_viewport.remove ();
+		panning_viewport.add (*panner);
+		panning_viewport.show_all ();
+	}
+}
+
+gint
+PannerUI::pan_button_event (GdkEventButton* ev, uint32_t which)
+{
+	switch (ev->button) {
+	case 3:
+		if (pan_menu == 0) {
+			pan_menu = manage (new Menu);
+			pan_menu->set_name ("ArdourContextMenu");
+		}
+		build_pan_menu (which);
+		pan_menu->popup (1, ev->time);
+		return TRUE;
+		break;
+	default:
+		return FALSE;
+	}
+
+	return FALSE; // what's wrong with gcc?
+}
+
+void
+PannerUI::build_pan_menu (uint32_t which)
+{
+	using namespace Menu_Helpers;
+	MenuList& items (pan_menu->items());
+
+	items.clear ();
+
+	items.push_back (CheckMenuElem (_("Mute")));
+	
+	/* set state first, connect second */
+
+	(dynamic_cast<CheckMenuItem*> (items.back()))->set_active (_io.panner()[which]->muted());
+	(dynamic_cast<CheckMenuItem*> (items.back()))->toggled.connect
+		(bind (slot (*this, &PannerUI::pan_mute), which));
+
+	items.push_back (CheckMenuElem (_("Bypass"), slot (*this, &PannerUI::pan_bypass_toggle)));
+	bypass_menu_item = static_cast<CheckMenuItem*> (items.back());
+
+	/* set state first, connect second */
+
+	bypass_menu_item->set_active (_io.panner().bypassed());
+	bypass_menu_item->toggled.connect (slot (*this, &PannerUI::pan_bypass_toggle));
+
+	items.push_back (MenuElem (_("Reset"), slot (*this, &PannerUI::pan_reset)));
+	items.push_back (SeparatorElem());
+	items.push_back (MenuElem (_("Reset all")));
+}
+
+void
+PannerUI::pan_mute (uint32_t which)
+{
+	StreamPanner* sp = _io.panner()[which];
+	sp->set_muted (!sp->muted());
+}
+
+void
+PannerUI::pan_bypass_toggle ()
+{
+	if (bypass_menu_item && (_io.panner().bypassed() != bypass_menu_item->get_active())) {
+		_io.panner().set_bypassed (!_io.panner().bypassed());
+	}
+}
+
+void
+PannerUI::pan_reset ()
+{
+}
+
+void
+PannerUI::effective_pan_display ()
+{
+	if (_io.panner().empty()) {
+		return;
+	}
+
+	switch (_io.n_outputs()) {
+	case 0: 
+	case 1:
+		/* relax */
+		break;
+
+	case 2:
+		update_pan_bars (true);
+		break;
+
+	default:
+                //panner->move_puck (pan_value (v, right), 0.5);
+		break;
+	}
+}
+
+void
+PannerUI::pan_changed (void *src)
+{
+	if (src == this) {
+		return;
+	}
+
+	switch (_io.panner().size()) {
+	case 0:
+		panning_link_box.set_sensitive (false);
+		return;
+	case 1:
+		panning_link_box.set_sensitive (false);
+		break;
+	default:
+		panning_link_box.set_sensitive (true);
+	}
+
+	uint32_t nouts = _io.n_outputs();
+
+	switch (nouts) {
+	case 0:
+	case 1:
+		/* relax */
+		break;
+
+	case 2:
+		update_pan_bars (false);
+		break;
+
+	default:
+		// panner->move_puck (pan_value (pans[0], pans[1]), 0.5);
+		break;
+	}
+}
+
+void
+PannerUI::pan_adjustment_changed (uint32_t which)
+{
+	if (!in_pan_update && which < _io.panner().size()) {
+
+		float xpos;
+		float val = pan_adjustments[which]->get_value ();
+		_io.panner()[which]->get_position (xpos);
+
+		/* add a kinda-sorta detent for the middle */
+		
+		if (val != 0.5 && Panner::equivalent (val, 0.5)) {
+			/* this is going to be reentrant, so just 
+			   return after it.
+			*/
+
+			in_pan_update = true;
+			pan_adjustments[which]->set_value (0.5);
+			in_pan_update = false;
+			return;
+		}
+		
+		if (!Panner::equivalent (val, xpos)) {
+
+			_io.panner()[which]->set_position (val);
+			/* XXX 
+			   the panner objects have no access to the session,
+			   so do this here. ick.
+			*/
+			_session.set_dirty();
+		}
+	}
+}
+
+void
+PannerUI::pan_value_changed (uint32_t which)
+{
+	ENSURE_GUI_THREAD (bind (slot (*this, &PannerUI::pan_value_changed), which));
+							   
+	if (which < _io.panner().size()) {
+		float xpos;
+		float val = pan_adjustments[which]->get_value ();
+
+		_io.panner()[which]->get_position (xpos);
+
+		if (!Panner::equivalent (val, xpos)) {
+			in_pan_update = true;
+			pan_adjustments[which]->set_value (xpos);
+			in_pan_update = false;
+		}
+	}
+}	
+
+void
+PannerUI::update_pan_bars (bool only_if_aplay)
+{
+	uint32_t n;
+	vector<Adjustment*>::iterator i;
+
+	in_pan_update = true;
+
+	/* this runs during automation playback, and moves the bar controllers
+	   and/or pucks around.
+	*/
+
+	for (i = pan_adjustments.begin(), n = 0; i != pan_adjustments.end(); ++i, ++n) {
+		float xpos, val;
+
+		if (only_if_aplay) {
+			AutomationList& alist (_io.panner()[n]->automation());
+			
+			if (!alist.automation_playback()) {
+				continue;
+			}
+		}
+
+		_io.panner()[n]->get_effective_position (xpos);
+		val = (*i)->get_value ();
+		
+		if (!Panner::equivalent (val, xpos)) {
+			(*i)->set_value (xpos);
+		}
+	}
+
+	in_pan_update = false;
+}
+
+void
+PannerUI::pan_printer (char *buf, uint32_t len, Adjustment* adj)
+{
+	float val = adj->get_value();
+
+	if (val == 0.0f) {
+		snprintf (buf, len, X_("L"));
+	} else if (val == 1.0f) {
+		snprintf (buf, len, X_("R"));
+	} else if (Panner::equivalent (val, 0.5f)) {
+		snprintf (buf, len, X_("C"));
+	} else {
+		/* don't print anything */
+		buf[0] = '\0';
+	}
+}
+
+void
+PannerUI::update_pan_sensitive ()
+{
+	bool sensitive = !(_io.panner().automation_state() & Play);
+
+	switch (_io.n_outputs()) {
+	case 0:
+	case 1:
+		break;
+	case 2:
+		for (vector<BarController*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
+			(*i)->set_sensitive (sensitive);
+		}
+		break;
+	default:
+		if (panner) {
+			panner->set_sensitive (sensitive);
+		}
+		break;
+	}
+}
+