Lua: Action Script Dialog & MessageBox

1 files changed, 563 insertions, 0 deletions

diff --git a/gtk2_ardour/luadialog.cc b/gtk2_ardour/luadialog.cc
new file mode 100644
index 0000000000..62a1e4d682
--- /dev/null
+++ b/gtk2_ardour/luadialog.cc
@@ -0,0 +1,563 @@
+/*
+ * Copyright (C) 2017 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/dB.h"
+#include "ardour/rc_configuration.h"
+
+#include "gtkmm2ext/slider_controller.h"
+#include "gtkmm2ext/utils.h"
+
+#include "ardour_dialog.h"
+#include "ardour_dropdown.h"
+#include "luadialog.h"
+#include "utils.h"
+
+using namespace LuaDialog;
+
+/*******************************************************************************
+ * Simple Message Dialog
+ */
+Message::Message (std::string const& title, std::string const& msg, Message::MessageType mt, Message::ButtonType bt)
+	: _message_dialog (msg, false, to_gtk_mt (mt), to_gtk_bt (bt), true)
+{
+	_message_dialog.set_title (title);
+}
+
+int
+Message::run ()
+{
+	int rv = _message_dialog.run ();
+	_message_dialog.hide ();
+	switch (rv) {
+		case Gtk::RESPONSE_OK:
+			return 0;
+		case Gtk::RESPONSE_CANCEL:
+			return 1;
+		case Gtk::RESPONSE_CLOSE:
+			return 2;
+		case Gtk::RESPONSE_YES:
+			return 3;
+		case Gtk::RESPONSE_NO:
+			return 4;
+		default:
+			break;
+	}
+	return -1;
+}
+
+Gtk::ButtonsType
+Message::to_gtk_bt (ButtonType bt)
+{
+	switch (bt) {
+		case OK:
+			return Gtk::BUTTONS_OK;
+		case Close:
+			return Gtk::BUTTONS_CLOSE;
+		case Cancel:
+			return Gtk::BUTTONS_CANCEL;
+		case Yes_No:
+			return Gtk::BUTTONS_YES_NO;
+		case OK_Cancel:
+			return Gtk::BUTTONS_OK_CANCEL;
+	}
+	assert (0);
+	return Gtk::BUTTONS_OK;
+}
+
+Gtk::MessageType
+Message::to_gtk_mt (MessageType mt)
+{
+	switch (mt) {
+		case Info:
+			return Gtk::MESSAGE_INFO;
+		case Warning:
+			return Gtk::MESSAGE_WARNING;
+		case Question:
+			return Gtk::MESSAGE_QUESTION;
+		case Error:
+			return Gtk::MESSAGE_ERROR;
+	}
+	assert (0);
+	return Gtk::MESSAGE_INFO;
+}
+
+
+/* *****************************************************************************
+ * Lua Dialog Widgets
+ */
+
+class LuaDialogCheckbox : public LuaDialogWidget
+{
+public:
+	LuaDialogCheckbox (std::string const& key, std::string const& title, bool on)
+		: LuaDialogWidget (key, "")
+		, _cb (title)
+	{
+		_cb.set_active (on);
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_cb;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		(*rv)[_key] = _cb.get_active ();
+	}
+
+protected:
+	Gtk::CheckButton _cb;
+};
+
+class LuaDialogEntry : public LuaDialogWidget
+{
+public:
+	LuaDialogEntry (std::string const& key, std::string const& title, std::string const& dflt)
+		: LuaDialogWidget (key, title)
+	{
+		_entry.set_text (dflt);
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_entry;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		(*rv)[_key] = std::string (_entry.get_text ());
+	}
+
+protected:
+	Gtk::Entry _entry;
+};
+
+class LuaDialogFader : public LuaDialogWidget
+{
+public:
+	LuaDialogFader (std::string const& key, std::string const& title, double dflt)
+		: LuaDialogWidget (key, title)
+		, _db_adjustment (ARDOUR::gain_to_slider_position_with_max (1.0, ARDOUR::Config->get_max_gain()), 0, 1, 0.01, 0.1)
+	{
+		_db_slider = Gtk::manage (new Gtkmm2ext::HSliderController (&_db_adjustment, boost::shared_ptr<PBD::Controllable>(), 220, 18));
+
+		_fader_centering_box.pack_start (*_db_slider, true, false);
+
+		_box.set_spacing (4);
+		_box.set_homogeneous (false);
+		_box.pack_start (_fader_centering_box, false, false);
+		_box.pack_start (_db_display, false, false);
+		_box.pack_start (*Gtk::manage (new Gtk::Label ("dB")), false, false);
+
+		Gtkmm2ext::set_size_request_to_display_given_text (_db_display, "-99.00", 12, 0);
+
+		_db_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &LuaDialogFader::db_changed));
+		_db_display.signal_activate().connect (sigc::mem_fun (*this, &LuaDialogFader::on_activate));
+		_db_display.signal_key_press_event().connect (sigc::mem_fun (*this, &LuaDialogFader::on_key_press), false);
+
+		double coeff_val = dB_to_coefficient (dflt);
+		_db_adjustment.set_value (ARDOUR::gain_to_slider_position_with_max (coeff_val, ARDOUR::Config->get_max_gain ()));
+		db_changed ();
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_box;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		double const val = ARDOUR::slider_position_to_gain_with_max (_db_adjustment.get_value (), ARDOUR::Config->get_max_gain());
+		(*rv)[_key] = accurate_coefficient_to_dB (val);
+	}
+
+protected:
+	void db_changed ()
+	{
+		double const val = ARDOUR::slider_position_to_gain_with_max (_db_adjustment.get_value (), ARDOUR::Config->get_max_gain());
+		char buf[16];
+		if (val == 0.0) {
+			snprintf (buf, sizeof (buf), "-inf");
+		} else {
+			snprintf (buf, sizeof (buf), "%.2f", accurate_coefficient_to_dB (val));
+		}
+		_db_display.set_text (buf);
+	}
+
+	void on_activate ()
+	{
+		float db_val = atof (_db_display.get_text ().c_str ());
+		double coeff_val = dB_to_coefficient (db_val);
+		_db_adjustment.set_value (ARDOUR::gain_to_slider_position_with_max (coeff_val, ARDOUR::Config->get_max_gain ()));
+	}
+
+	bool on_key_press (GdkEventKey* ev)
+	{
+		if (ARDOUR_UI_UTILS::key_is_legal_for_numeric_entry (ev->keyval)) {
+			return false;
+		}
+		return true;
+	}
+
+	Gtk::Adjustment _db_adjustment;
+	Gtkmm2ext::HSliderController* _db_slider;
+	Gtk::Entry _db_display;
+	Gtk::HBox _box;
+	Gtk::VBox _fader_centering_box;
+};
+
+class LuaDialogSlider : public LuaDialogWidget
+{
+public:
+	LuaDialogSlider (std::string const& key, std::string const& title, double lower, double upper, double dflt, int digits, luabridge::LuaRef scalepoints)
+		: LuaDialogWidget (key, title)
+		, _adj (dflt, lower, upper, 1, (upper - lower) / 20, 0)
+		, _hscale (_adj)
+	{
+		_hscale.set_digits (digits);
+		_hscale.set_draw_value (true);
+		_hscale.set_value_pos (Gtk::POS_TOP);
+
+		if (!scalepoints.isTable ()) {
+			return;
+		}
+
+		for (luabridge::Iterator i (scalepoints); !i.isNil (); ++i) {
+			if (!i.key ().isNumber ())  { continue; }
+			if (!i.value ().isString ())  { continue; }
+			_hscale.add_mark (i.key ().cast<double> (), Gtk::POS_BOTTOM, i.value ().cast<std::string> ());
+		}
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_hscale;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		(*rv)[_key] = _adj.get_value ();
+	}
+
+protected:
+	Gtk::Adjustment _adj;
+	Gtk::HScale _hscale;
+};
+
+class LuaDialogSpinBox : public LuaDialogWidget
+{
+public:
+	LuaDialogSpinBox (std::string const& key, std::string const& title, double lower, double upper, double dflt, double step, int digits)
+		: LuaDialogWidget (key, title)
+		, _adj (dflt, lower, upper, step, step, 0)
+		, _spin (_adj)
+	{
+		_spin.set_digits(digits);
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_spin;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		(*rv)[_key] = _adj.get_value ();
+	}
+
+protected:
+	Gtk::Adjustment _adj;
+	Gtk::SpinButton _spin;
+};
+
+class LuaDialogRadio : public LuaDialogWidget
+{
+public:
+	LuaDialogRadio (std::string const& key, std::string const& title, luabridge::LuaRef values, std::string const& dflt)
+		: LuaDialogWidget (key, title)
+		, _rv (0)
+	{
+		for (luabridge::Iterator i (values); !i.isNil (); ++i) {
+			if (!i.key ().isString ())  { continue; }
+			std::string key = i.key ().cast<std::string> ();
+			Gtk::RadioButton* rb = Gtk::manage (new Gtk::RadioButton (_group, key));
+			_hbox.pack_start (*rb);
+			luabridge::LuaRef* ref = new luabridge::LuaRef (i.value ());
+			_refs.push_back (ref);
+			if (!_rv) { _rv = ref; }
+			rb->signal_toggled ().connect (sigc::bind (
+						sigc::mem_fun (*this, &LuaDialogRadio::rb_toggled), rb, ref
+						) , false);
+
+			if (key == dflt) {
+				rb->set_active ();
+			}
+		}
+	}
+
+	~LuaDialogRadio ()
+	{
+		for (std::vector<luabridge::LuaRef*>::const_iterator i = _refs.begin (); i != _refs.end (); ++i) {
+			delete *i;
+		}
+		_refs.clear ();
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_hbox;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		if (_rv) {
+			(*rv)[_key] = *_rv;
+		} else {
+			(*rv)[_key] = luabridge::Nil ();
+		}
+	}
+
+protected:
+	LuaDialogRadio (LuaDialogRadio const&); // prevent cc
+	void rb_toggled (Gtk::RadioButton* b, luabridge::LuaRef* rv) {
+		if (b->get_active ()) {
+			_rv = rv;
+		}
+	}
+
+	Gtk::HBox _hbox;
+	Gtk::RadioButtonGroup _group;
+	std::vector<luabridge::LuaRef*> _refs;
+	luabridge::LuaRef* _rv;
+};
+
+class LuaDialogDropDown : public LuaDialogWidget
+{
+public:
+	LuaDialogDropDown (std::string const& key, std::string const& title, luabridge::LuaRef values, std::string const& dflt)
+		: LuaDialogWidget (key, title)
+		, _rv (0)
+	{
+		populate (_dd.items(), values, dflt);
+	}
+
+	~LuaDialogDropDown ()
+	{
+		for (std::vector<luabridge::LuaRef*>::const_iterator i = _refs.begin (); i != _refs.end (); ++i) {
+			delete *i;
+		}
+		_refs.clear ();
+	}
+
+	Gtk::Widget* widget ()
+	{
+		return &_dd;
+	}
+
+	void assign (luabridge::LuaRef* rv) const
+	{
+		if (_rv) {
+			(*rv)[_key] = *_rv;
+		} else {
+			(*rv)[_key] = luabridge::Nil ();
+		}
+	}
+
+protected:
+	void populate (Gtk::Menu_Helpers::MenuList& items, luabridge::LuaRef values, std::string const& dflt)
+	{
+		using namespace Gtk::Menu_Helpers;
+		for (luabridge::Iterator i (values); !i.isNil (); ++i) {
+			if (!i.key ().isString ())  { continue; }
+			std::string key = i.key ().cast<std::string> ();
+			if (i.value ().isTable ())  {
+				Gtk::Menu* menu  = Gtk::manage (new Gtk::Menu);
+				items.push_back (MenuElem (key, *menu));
+				populate (menu->items(), i.value (), dflt);
+				continue;
+			}
+			luabridge::LuaRef* ref = new luabridge::LuaRef (i.value ());
+			_refs.push_back (ref);
+			items.push_back (MenuElem (i.key ().cast<std::string> (),
+						sigc::bind (sigc::mem_fun(*this, &LuaDialogDropDown::dd_select), key, ref)));
+
+			if (!_rv || key == dflt) {
+				_rv = ref;
+				_dd.set_text (key);
+			}
+		}
+	}
+
+	void dd_select (std::string const& key, luabridge::LuaRef* rv) {
+		_dd.set_text (key);
+		_rv = rv;
+	}
+
+	ArdourDropdown _dd;
+	std::vector<luabridge::LuaRef*> _refs;
+	luabridge::LuaRef* _rv;
+};
+
+
+/*******************************************************************************
+ * Lua Parameter Dialog
+ */
+Dialog::Dialog (std::string const& title, luabridge::LuaRef lr)
+	:_ad (title, true, false)
+	, _title (title)
+{
+	if (!lr.isTable ()) {
+		return;
+	}
+	for (luabridge::Iterator i (lr); !i.isNil (); ++i) {
+		if (!i.key ().isNumber ())  { continue; }
+		if (!i.value ().isTable ()) { continue; }
+		if (!i.value ()["key"].isString ()) { continue; }
+		if (!i.value ()["title"].isString ()) { continue; }
+		if (!i.value ()["type"].isString ()) { continue; }
+
+		std::string key = i.value ()["key"].cast<std::string> ();
+		std::string title = i.value ()["title"].cast<std::string> ();
+		std::string type = i.value ()["type"].cast<std::string> ();
+
+		if (type == "checkbox") {
+			bool dflt = false;
+			if (i.value ()["default"].isBoolean ()) {
+				dflt = i.value ()["default"].cast<bool> ();
+			}
+			_widgets.push_back (new LuaDialogCheckbox (key, title, dflt));
+		} else if (type == "entry") {
+			std::string dflt;
+			if (i.value ()["default"].isString ()) {
+				dflt = i.value ()["default"].cast<std::string> ();
+			}
+			_widgets.push_back (new LuaDialogEntry (key, title, dflt));
+		} else if (type == "radio") {
+			std::string dflt;
+			if (!i.value ()["values"].isTable ()) {
+				continue;
+			}
+			if (i.value ()["default"].isString ()) {
+				dflt = i.value ()["default"].cast<std::string> ();
+			}
+			_widgets.push_back (new LuaDialogRadio (key, title, i.value ()["values"], dflt));
+		} else if (type == "fader") {
+			double dflt = 0;
+			if (i.value ()["default"].isNumber ()) {
+				dflt = i.value ()["default"].cast<double> ();
+			}
+			_widgets.push_back (new LuaDialogFader (key, title, dflt));
+		} else if (type == "slider") {
+			double lower, upper, dflt;
+			int digits = 0;
+			if (!i.value ()["min"].isNumber ()) { continue; }
+			if (!i.value ()["max"].isNumber ()) { continue; }
+			lower = i.value ()["min"].cast<double> ();
+			upper = i.value ()["max"].cast<double> ();
+			if (i.value ()["default"].isNumber ()) {
+				dflt = i.value ()["default"].cast<double> ();
+			} else {
+				dflt = lower;
+			}
+			if (i.value ()["digits"].isNumber ()) {
+				digits = i.value ()["digits"].cast<int> ();
+			}
+			_widgets.push_back (new LuaDialogSlider (key, title, lower, upper, dflt, digits, i.value ()["scalepoints"]));
+		} else if (type == "number") {
+			double lower, upper, dflt, step;
+			int digits = 0;
+			if (!i.value ()["min"].isNumber ()) { continue; }
+			if (!i.value ()["max"].isNumber ()) { continue; }
+			lower = i.value ()["min"].cast<double> ();
+			upper = i.value ()["max"].cast<double> ();
+			if (i.value ()["default"].isNumber ()) {
+				dflt = i.value ()["default"].cast<double> ();
+			} else {
+				dflt = lower;
+			}
+			if (i.value ()["step"].isNumber ()) {
+				step = i.value ()["step"].cast<double> ();
+			} else {
+				step = 1.0;
+			}
+			if (i.value ()["digits"].isNumber ()) {
+				digits = i.value ()["digits"].cast<int> ();
+			}
+			_widgets.push_back (new LuaDialogSpinBox (key, title, lower, upper, dflt, step, digits));
+		} else if (type == "dropdown") {
+			std::string dflt;
+			if (!i.value ()["values"].isTable ()) {
+				continue;
+			}
+			if (i.value ()["default"].isString ()) {
+				dflt = i.value ()["default"].cast<std::string> ();
+			}
+			_widgets.push_back (new LuaDialogDropDown (key, title, i.value ()["values"], dflt));
+		}
+	}
+
+	_ad.add_button (Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
+	_ad.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
+
+	Gtk::Table* table = Gtk::manage (new Gtk::Table());
+	table->set_spacings (6);
+	_ad.get_vbox ()->pack_start (*table);
+	int row = 0;
+
+	for (DialogWidgets::const_iterator i = _widgets.begin (); i != _widgets.end () ; ++i) {
+		std::string const& label = (*i)->label ();
+		if (!label.empty ()) {
+			Gtk::Label* lbl = Gtk::manage (new Gtk::Label ("<b>" + label + ":</b>", Gtk::ALIGN_END, Gtk::ALIGN_CENTER, false));
+			lbl->set_use_markup ();
+			table->attach (*lbl, 0, 1, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::SHRINK);
+		}
+		table->attach (*((*i)->widget ()), 1, 2, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::SHRINK);
+		++row;
+	}
+}
+
+Dialog::~Dialog ()
+{
+	for (DialogWidgets::const_iterator i = _widgets.begin (); i != _widgets.end () ; ++i) {
+		delete *i;
+	}
+	_widgets.clear ();
+}
+
+int
+Dialog::run (lua_State *L)
+{
+	_ad.get_vbox ()->show_all ();
+	switch (_ad.run ()) {
+		case Gtk::RESPONSE_ACCEPT:
+			break;
+		default:
+      lua_pushnil (L);
+			return 1;
+	}
+
+	luabridge::LuaRef rv (luabridge::newTable (L));
+	for (DialogWidgets::const_iterator i = _widgets.begin (); i != _widgets.end () ; ++i) {
+		(*i)->assign (&rv);
+	}
+	luabridge::push (L, rv);
+	return 1;
+}