Add backdrop picker

The backdrop picker has been added now.

CMakeLists.txt

@@ -295,6 +295,8 @@ set(EDITOR_SOURCES
 	src/ui/picker/picker_audio_widget.cpp
 	src/ui/picker/picker_audio_widget.h
 	src/ui/picker/picker_audio_widget.ui
+	src/ui/picker/picker_backdrop_widget.cpp
+	src/ui/picker/picker_backdrop_widget.h
 	src/ui/picker/picker_child_widget.cpp
 	src/ui/picker/picker_child_widget.h
 	src/ui/picker/picker_charset_widget.cpp

src/ui/picker/picker_backdrop_widget.cpp

@@ -0,0 +1,29 @@
+/*
+ * This file is part of EasyRPG Editor.
+ *
+ * EasyRPG Editor 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EasyRPG Editor 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 EasyRPG Editor. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "picker_backdrop_widget.h"
+#include "ui/viewer/rpg_graphics_view.h"
+#include <QGraphicsScene>
+
+void PickerBackdropWidget::imageChanged(QPixmap image) {
+	if (!m_pixmap) {
+		m_pixmap = new QGraphicsPixmapItem(image);
+	}
+
+	m_pixmap->setPixmap(image);
+	m_view->setItem(m_pixmap);
+}

src/ui/picker/picker_backdrop_widget.h

@@ -0,0 +1,35 @@
+/*
+ * This file is part of EasyRPG Editor.
+ *
+ * EasyRPG Editor 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EasyRPG Editor 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 EasyRPG Editor. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QWidget>
+#include "picker_child_widget.h"
+
+class QGraphicsScene;
+class QGraphicsPixmapItem;
+
+class PickerBackdropWidget : public PickerChildWidget {
+	Q_OBJECT
+public:
+	PickerBackdropWidget(QWidget* parent = nullptr) : PickerChildWidget(parent) {}
+
+	void imageChanged(QPixmap image) override;
+
+private:
+	QGraphicsPixmapItem* m_pixmap = nullptr;
+};