Extract ratio setup UI to a separate class.

1 files changed, 158 insertions, 0 deletions

diff --git a/src/wx/ratio_picker.cc b/src/wx/ratio_picker.cc
new file mode 100644
index 000000000..39d2c4f2a
--- /dev/null
+++ b/src/wx/ratio_picker.cc
@@ -0,0 +1,158 @@
+/*
+    Copyright (C) 2025 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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.
+
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "dcpomatic_choice.h"
+#include "check_box.h"
+#include "ratio_picker.h"
+#include "wx_util.h"
+#include "lib/ratio.h"
+#include <dcp/locale_convert.h>
+#include <dcp/scope_guard.h>
+
+
+using boost::optional;
+
+
+RatioPicker::RatioPicker(wxWindow* parent, optional<float> ratio)
+	: wxPanel(parent, wxID_ANY)
+{
+	_enable = new CheckBox(parent, _("Crop output to"));
+	_preset = new Choice(this);
+	_custom = new wxTextCtrl(this, wxID_ANY);
+
+	auto sizer = new wxBoxSizer(wxHORIZONTAL);
+	sizer->Add(_preset, 0, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_X_GAP);
+	sizer->Add(_custom, 0, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_X_GAP);
+	add_label_to_sizer(sizer, this, _(":1"), false, 0, wxALIGN_CENTER_VERTICAL);
+
+	for (auto ratio: Ratio::all()) {
+		_preset->add_entry(ratio.image_nickname(), ratio.id());
+	}
+	_preset->add_entry(_("Custom"), "custom");
+
+	SetSizer(sizer);
+	Layout();
+
+	set(ratio);
+
+	_enable->bind(&RatioPicker::enable_changed, this);
+	_preset->bind(&RatioPicker::preset_changed, this);
+	_custom->Bind(wxEVT_TEXT, boost::bind(&RatioPicker::custom_changed, this));
+
+	setup_sensitivity();
+}
+
+
+void
+RatioPicker::set(optional<float> ratio)
+{
+	_enable->set(ratio.has_value());
+	set_preset(ratio);
+	set_custom(ratio);
+}
+
+
+void
+RatioPicker::enable_changed()
+{
+	setup_sensitivity();
+	if (_enable->get()) {
+		Changed(1.85);
+	} else {
+		Changed({});
+	}
+}
+
+
+void
+RatioPicker::setup_sensitivity()
+{
+	_preset->Enable(_enable->get());
+	_custom->Enable(_enable->get());
+}
+
+
+void
+RatioPicker::preset_changed()
+{
+	if (!_enable->get() || _ignore_changes) {
+		return;
+	}
+
+	optional<Ratio> ratio;
+
+	if (auto data = _preset->get_data()) {
+		ratio = Ratio::from_id_if_exists(*data);
+	}
+
+	optional<float> new_value;
+	if (ratio) {
+		new_value = ratio->ratio();
+	} else {
+		new_value = dcp::locale_convert<float>(wx_to_std(_custom->GetValue()));
+	}
+
+	set_custom(new_value);
+	Changed(new_value);
+}
+
+
+void
+RatioPicker::custom_changed()
+{
+	if (!_enable->get() || _ignore_changes) {
+		return;
+	}
+
+	auto const new_value = dcp::locale_convert<float>(wx_to_std(_custom->GetValue()));
+	set_preset(new_value);
+	Changed(new_value);
+}
+
+
+void
+RatioPicker::set_preset(optional<float> ratio)
+{
+	_ignore_changes = true;
+	dcp::ScopeGuard sg = [this]() { _ignore_changes = false; };
+
+	if (ratio) {
+		auto preset = Ratio::from_ratio(*ratio);
+		_preset->set_by_data(preset ? preset->id() : "custom");
+	} else {
+		_preset->set_by_data("185");
+	}
+}
+
+
+void
+RatioPicker::set_custom(optional<float> ratio)
+{
+	_ignore_changes = true;
+	dcp::ScopeGuard sg = [this]() { _ignore_changes = false; };
+
+	if (ratio) {
+		auto preset = Ratio::from_ratio(*ratio);
+		_custom->SetValue(wxString::Format(char_to_wx("%.2f"), preset ? preset->ratio() : *ratio));
+	} else {
+		_custom->SetValue(_("1.85"));
+	}
+}