1 files changed, 83 insertions, 0 deletions
diff --git a/src/gui/button.hpp b/src/gui/button.hpp
new file mode 100644
index 0000000..29a071f
--- /dev/null
+++ b/src/gui/button.hpp
@@ -0,0 +1,83 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Leo Tenenbaum
+// This file is part of GraphColoring.
+//
+// GraphColoring 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.
+//
+// GraphColoring 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 GraphColoring.  If not, see <https://www.gnu.org/licenses/>.
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef GRAPHCOLORING_GUI_BUTTON_H_
+#define GRAPHCOLORING_GUI_BUTTON_H_
+
+
+#include <string>
+#include <vector>
+#include <functional>
+#include <iostream>
+
+#include "colors.hpp"
+#include "position.hpp"
+#include "window.hpp"
+
+namespace gui {
+
+class Button
+{
+public:
+	typedef std::function<void()> callback_t;
+	typedef std::map<guint, std::vector<callback_t>> callback_map_t;
+	enum class Shape
+	{
+		RECTANGLE,
+		CIRCLE // NOTE: If you select this, size.X() will be used for the radius of the circle.
+	};
+	Button(Window* window, const std::string& text, Position pos, Size size,
+		   Color color,
+		   Position::Alignment horizontal_align = Position::Alignment::LEFT,
+		   Position::Alignment vertical_align = Position::Alignment::TOP,
+		   Shape shape = Shape::RECTANGLE);
+	virtual ~Button();
+	void SetCommand(callback_t callback, guint button = GDK_BUTTON_PRIMARY);
+	void SetHoverCallback(callback_t callback);
+	void Render();
+	int GetX() const;
+	int GetY() const;
+	int GetWidth() const;
+	int GetHeight() const;
+	int GetRadius() const;
+	void SetPosition(Position position);
+	void SetAlignment(Alignment horizontal_align, Alignment vertical_align);
+	static constexpr double CIRCLE_TEXT_SIZE_FACTOR = 0.9; // Allows for ~2 characters
+private:
+	void CheckHovering();
+	void CheckClick(guint button);
+	static constexpr int BORDER_WIDTH = 3;
+	static constexpr double TEXT_SIZE_FACTOR = 0.7;
+	static const std::vector<guint> MOUSE_BUTTONS;
+	Window* const window;
+	std::string text;
+	Position position;
+	Size size;
+	Color color;
+	Alignment horizontal_align, vertical_align;
+	Shape shape;
+	bool hovering;
+	std::vector<int> mouseup_callback_ids;
+	callback_map_t callbacks;
+	std::vector<callback_t> hover_callbacks;
+};
+
+} // namespace gui
+
+
+#endif // GRAPHCOLORING_GUI_BUTTON_H_