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engines/crab/ui/slider.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#ifndef CRAB_SLIDER_H
+#define CRAB_SLIDER_H
+
+#include "crab/ui/Caption.h"
+#include "crab/ui/ImageData.h"
+#include "crab/ui/button.h"
+
+namespace Crab {
+
+namespace pyrodactyl {
+namespace ui {
+class Slider {
+	// The value of the slider and the backup
+	int _value, _backup;
+
+	// The slider bar position and dimensions
+	ImageData _bar;
+
+	// The slider knob
+	Button _knob;
+
+	// Caption for the slider
+	Caption _caption;
+
+	// The maximum and minimum values for the slider
+	int _max, _min;
+
+	// Grey out?
+	bool _isGreyed;
+
+public:
+	Slider() {
+		_max = 100;
+		_min = 0;
+		_value = ((_max - _min) / 2);
+		_backup = _value;
+		_isGreyed = false;
+	}
+
+	~Slider() {}
+
+	void load(rapidxml::xml_node<char> *node, const int &min, const int &max, const int &val);
+
+	bool handleEvents(const Common::Event &event);
+
+	void draw();
+
+	int Value() { return _value; }
+	void value(const int val);
+
+	void createBackup() {
+		_backup = _value;
+	}
+
+	void restoreBackup() {
+		_value = _backup;
+		setUI();
+	}
+
+	void setEnabled(bool enabled) {
+		_isGreyed = !enabled;
+	}
+
+	void greyOut();
+
+	void setUI();
+};
+} // End of namespace ui
+} // End of namespace pyrodactyl
+
+} // End of namespace Crab
+
+#endif // CRAB_SLIDER_H