Split macro-condition-video.cpp UI into per-widget files

This makes it easier to conditionally exclude video-edit-object.cpp
from the build when OpenCV >= 5 drops CascadeClassifier support.

plugins/video/video-edit-area.cpp

@@ -0,0 +1,89 @@
+#include "macro-condition-video.hpp"
+#include "layout-helpers.hpp"
+#include "plugin-state-helpers.hpp"
+
+#include <QPushButton>
+
+namespace advss {
+
+AreaEdit::AreaEdit(QWidget *parent, PreviewDialog *previewDialog,
+		   const std::shared_ptr<MacroConditionVideo> &data)
+	: QWidget(parent),
+	  _checkAreaEnable(new QCheckBox(obs_module_text(
+		  "AdvSceneSwitcher.condition.video.layout.checkAreaEnable"))),
+	  _checkArea(new AreaSelection(0, 99999)),
+	  _selectArea(new QPushButton(obs_module_text(
+		  "AdvSceneSwitcher.condition.video.selectArea"))),
+	  _previewDialog(previewDialog),
+	  _entryData(data)
+{
+	QWidget::connect(_checkAreaEnable, SIGNAL(stateChanged(int)), this,
+			 SLOT(CheckAreaEnableChanged(int)));
+	QWidget::connect(_checkArea, SIGNAL(AreaChanged(Area)), this,
+			 SLOT(CheckAreaChanged(Area)));
+	QWidget::connect(_selectArea, SIGNAL(clicked()), this,
+			 SLOT(SelectAreaClicked()));
+	QWidget::connect(_previewDialog, SIGNAL(SelectionAreaChanged(QRect)),
+			 this, SLOT(CheckAreaChanged(QRect)));
+
+	std::unordered_map<std::string, QWidget *> widgetPlaceholders = {
+		{"{{checkAreaEnable}}", _checkAreaEnable},
+		{"{{checkArea}}", _checkArea},
+		{"{{selectArea}}", _selectArea},
+	};
+
+	auto layout = new QHBoxLayout;
+	layout->setContentsMargins(0, 0, 0, 0);
+	PlaceWidgets(
+		obs_module_text(
+			"AdvSceneSwitcher.condition.video.layout.checkArea"),
+		layout, widgetPlaceholders);
+	setLayout(layout);
+
+	_checkAreaEnable->setChecked(_entryData->_areaParameters.enable);
+	_checkArea->SetArea(_entryData->_areaParameters.area);
+	SetWidgetVisibility();
+	_loading = false;
+}
+
+void AreaEdit::SetWidgetVisibility()
+{
+	_checkArea->setVisible(_entryData->_areaParameters.enable);
+	_selectArea->setVisible(_entryData->_areaParameters.enable);
+	adjustSize();
+	updateGeometry();
+}
+
+void AreaEdit::SelectAreaClicked()
+{
+	_previewDialog->show();
+	_previewDialog->raise();
+	_previewDialog->activateWindow();
+	_previewDialog->SelectArea();
+}
+
+void AreaEdit::CheckAreaEnableChanged(int value)
+{
+	GUARD_LOADING_AND_LOCK();
+	_entryData->_areaParameters.enable = value;
+	SetWidgetVisibility();
+	_previewDialog->AreaParametersChanged(_entryData->_areaParameters);
+	emit Resized();
+}
+
+void AreaEdit::CheckAreaChanged(Area value)
+{
+	GUARD_LOADING_AND_LOCK();
+	_entryData->_areaParameters.area = value;
+	_previewDialog->AreaParametersChanged(_entryData->_areaParameters);
+}
+
+void AreaEdit::CheckAreaChanged(QRect rect)
+{
+	const QSignalBlocker b(_checkArea);
+	Area area{rect.topLeft().x(), rect.y(), rect.width(), rect.height()};
+	_checkArea->SetArea(area);
+	CheckAreaChanged(area);
+}
+
+} // namespace advss