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livetrax/gtk2_ardour/luadialog.cc

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/*
* 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 <algorithm>
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#include <gtkmm.h>
#include "ardour/dB.h"
#include "ardour/rc_configuration.h"
#include "gtkmm2ext/utils.h"
#include "widgets/ardour_dropdown.h"
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#include "widgets/slider_controller.h"
#include "stripable_colorpicker.h"
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#include "ardour_dialog.h"
#include "luadialog.h"
#include "splash.h"
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#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 ()
{
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bool splash_pushed = false;
Splash* spl = Splash::instance();
if (spl && spl->is_visible()) {
spl->pop_back_for (_message_dialog);
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splash_pushed = true;
}
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int rv = _message_dialog.run ();
_message_dialog.hide ();
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if (splash_pushed) {
spl = Splash::instance();
if (spl) {
spl->pop_front();
}
}
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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 LuaDialogLabel : public LuaDialogWidget
{
public:
LuaDialogLabel (std::string const& title, Gtk::AlignmentEnum xalign)
: LuaDialogWidget ("", "", 0, 2)
, _lbl (title, xalign, Gtk::ALIGN_CENTER, false)
{ }
Gtk::Widget* widget ()
{
return &_lbl;
}
void assign (luabridge::LuaRef* rv) const { }
protected:
Gtk::Label _lbl;
};
class LuaDialogHeading : public LuaDialogLabel
{
public:
LuaDialogHeading (std::string const& title, Gtk::AlignmentEnum xalign)
: LuaDialogLabel ("<b>" + title + "</b>", xalign)
{
_lbl.set_use_markup ();
}
};
class LuaHSeparator : public LuaDialogWidget
{
public:
LuaHSeparator ()
: LuaDialogWidget ("", "", 0, 2)
{}
Gtk::Widget* widget ()
{
return &_sep;
}
void assign (luabridge::LuaRef* rv) const { }
protected:
Gtk::HSeparator _sep;
};
class LuaColorPicker : public LuaDialogWidget
{
public:
LuaColorPicker (std::string const& key)
: LuaDialogWidget (key, "", 0, 1)
{}
Gtk::Widget* widget ()
{
return &_cs;
}
void assign (luabridge::LuaRef* rv) const {
uint32_t rgba = ARDOUR_UI_UTILS::gdk_color_to_rgba(_cs.get_color());
(*rv)[_key] = rgba;
}
protected:
Gtk::ColorButton _cs;
};
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class LuaDialogCheckbox : public LuaDialogWidget
{
public:
LuaDialogCheckbox (std::string const& key, std::string const& title, bool on)
: LuaDialogWidget (key, "", 1, 1)
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{
if (!title.empty ()) {
_cb.add_label (title, false, 0);
}
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_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)
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{
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_db_slider = Gtk::manage (new ArdourWidgets::HSliderController (&_db_adjustment, boost::shared_ptr<PBD::Controllable> (), 220, 18));
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_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);
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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 ());
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(*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 ());
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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;
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ArdourWidgets::HSliderController* _db_slider;
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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);
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}
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);
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}
~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;
std::vector<std::string> keys;
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for (luabridge::Iterator i (values); !i.isNil (); ++i) {
if (!i.key ().isString ()) { continue; }
keys.push_back (i.key ().cast<std::string> ());
}
std::sort (keys.begin(), keys.end());
for (std::vector<std::string>::const_iterator i = keys.begin (); i != keys.end(); ++i) {
std::string key = *i;
if (values[key].isTable ()) {
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Gtk::Menu* menu = Gtk::manage (new Gtk::Menu);
items.push_back (MenuElem (key, *menu));
populate (menu->items (), values[key], dflt);
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continue;
}
luabridge::LuaRef* ref = new luabridge::LuaRef (values[key]);
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_refs.push_back (ref);
items.push_back (MenuElem (key,
sigc::bind (sigc::mem_fun (*this, &LuaDialogDropDown::dd_select), key, ref)));
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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;
}
ArdourWidgets::ArdourDropdown _dd;
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std::vector<luabridge::LuaRef*> _refs;
luabridge::LuaRef* _rv;
};
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class LuaFileChooser : public LuaDialogWidget
{
public:
LuaFileChooser (std::string const& key, std::string const& title, Gtk::FileChooserAction a, const std::string& path)
: LuaDialogWidget (key, title)
, _fc (a)
{
if (!path.empty ()) {
switch (a) {
case Gtk::FILE_CHOOSER_ACTION_OPEN:
case Gtk::FILE_CHOOSER_ACTION_SAVE:
if (Glib::file_test (path, Glib::FILE_TEST_IS_REGULAR|Glib::FILE_TEST_EXISTS)) {
_fc.set_filename (path);
}
break;
case Gtk::FILE_CHOOSER_ACTION_SELECT_FOLDER:
if (Glib::file_test (path, Glib::FILE_TEST_IS_DIR|Glib::FILE_TEST_EXISTS)) {
_fc.set_filename (path);
}
break;
case Gtk::FILE_CHOOSER_ACTION_CREATE_FOLDER:
break;
}
}
}
Gtk::Widget* widget ()
{
return &_fc;
}
void assign (luabridge::LuaRef* rv) const
{
(*rv)[_key] = std::string (_fc.get_filename ());
}
protected:
Gtk::FileChooserButton _fc;
};
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/*******************************************************************************
* 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 ()["title"].isString ()) { continue; }
if (!i.value ()["type"].isString ()) { continue; }
std::string title = i.value ()["title"].cast<std::string> ();
std::string type = i.value ()["type"].cast<std::string> ();
std::string key;
if (i.value ()["key"].isString ()) {
key = i.value ()["key"].cast<std::string> ();
}
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LuaDialogWidget* w = NULL;
if (type == "heading") {
Gtk::AlignmentEnum xalign = Gtk::ALIGN_CENTER;
if (i.value ()["align"].isString ()) {
std::string align = i.value ()["align"].cast <std::string> ();
if (align == "left") {
xalign = Gtk::ALIGN_LEFT;
} else if (align == "right") {
xalign = Gtk::ALIGN_RIGHT;
}
}
w = new LuaDialogHeading (title, xalign);
} else if (type == "label") {
Gtk::AlignmentEnum xalign = Gtk::ALIGN_CENTER;
if (i.value ()["align"].isString ()) {
std::string align = i.value ()["align"].cast <std::string> ();
if (align == "left") {
xalign = Gtk::ALIGN_LEFT;
} else if (align == "right") {
xalign = Gtk::ALIGN_RIGHT;
}
}
w = new LuaDialogLabel (title, xalign);
} else if (type == "hseparator") {
w = new LuaHSeparator ();
}
/* the following widgets do require a key */
else if (key.empty ()) {
continue;
}
else if (type == "checkbox") {
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bool dflt = false;
if (i.value ()["default"].isBoolean ()) {
dflt = i.value ()["default"].cast<bool> ();
}
w = new LuaDialogCheckbox (key, title, dflt);
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} else if (type == "entry") {
std::string dflt;
if (i.value ()["default"].isString ()) {
dflt = i.value ()["default"].cast<std::string> ();
}
w = new LuaDialogEntry (key, title, dflt);
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} 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> ();
}
w = new LuaDialogRadio (key, title, i.value ()["values"], dflt);
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} else if (type == "fader") {
double dflt = 0;
if (i.value ()["default"].isNumber ()) {
dflt = i.value ()["default"].cast<double> ();
}
w = new LuaDialogFader (key, title, dflt);
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} 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> ();
}
w = new LuaDialogSlider (key, title, lower, upper, dflt, digits, i.value ()["scalepoints"]);
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} 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> ();
}
w = new LuaDialogSpinBox (key, title, lower, upper, dflt, step, digits);
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} 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> ();
}
w = new LuaDialogDropDown (key, title, i.value ()["values"], dflt);
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} else if (type == "file") {
std::string path;
if (i.value ()["path"].isString ()) {
path = i.value ()["path"].cast<std::string> ();
}
w = new LuaFileChooser (key, title, Gtk::FILE_CHOOSER_ACTION_OPEN, path);
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} else if (type == "folder") {
std::string path;
if (i.value ()["path"].isString ()) {
path = i.value ()["path"].cast<std::string> ();
}
w = new LuaFileChooser (key, title, Gtk::FILE_CHOOSER_ACTION_SELECT_FOLDER, path);
} else if (type == "color") {
w = new LuaColorPicker (key);
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}
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if (w) {
if (i.value ()["col"].isNumber ()) {
w->set_col (i.value ()["col"].cast<int> ());
}
if (i.value ()["colspan"].isNumber ()) {
w->set_span (i.value ()["colspan"].cast<int> ());
}
_widgets.push_back(w);
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}
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}
_ad.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
_ad.add_button (Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
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Gtk::Table* table = Gtk::manage (new Gtk::Table ());
table->set_col_spacings (20);
table->set_row_spacings (8);
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_ad.get_vbox ()->pack_start (*table);
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int row = 0;
int last_end = -1;
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for (DialogWidgets::const_iterator i = _widgets.begin (); i != _widgets.end (); ++i) {
int col = (*i)->col();
int cend = col + (*i)->span();
if (col < last_end) {
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++row;
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}
last_end = cend;
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std::string const& label = (*i)->label ();
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if (!label.empty ()) {
/* items with implicit label (title) */
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Gtk::Label* lbl = Gtk::manage (new Gtk::Label (label + ":", Gtk::ALIGN_END, Gtk::ALIGN_CENTER, false));
if (cend - col > 1) {
table->attach (*lbl, col, col + 1, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::SHRINK);
table->attach (*((*i)->widget ()), col + 1, cend, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::SHRINK);
} else {
Gtk::HBox* hb = Gtk::manage (new Gtk::HBox());
hb->set_spacing(4);
hb->pack_start (*lbl, true, false);
hb->pack_start (*(*i)->widget (), true, false);
table->attach (*hb, col, cend, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::SHRINK);
}
} else {
table->attach (*((*i)->widget ()), col, cend, row, row + 1, Gtk::FILL | Gtk::EXPAND, Gtk::SHRINK);
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}
}
}
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:
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lua_pushnil (L);
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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;
}