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////////////////////////////////////////////////////////////////////////////////
// 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/>.
////////////////////////////////////////////////////////////////////////////////
// This position class can be used for relative positions, like
// (30% of parent width + 5 pixels, 20% of parent height - 20 pixels)
#ifndef GRAPHCOLORING_GUI_POSITION_H_
#define GRAPHCOLORING_GUI_POSITION_H_
#include <string>
namespace gui {
class Position {
public:
typedef Position Size; // "Size" alias for Positions that really refer to sizes.
enum class Alignment
{
LEFT,
CENTER,
RIGHT,
TOP = LEFT,
BOTTOM = RIGHT
};
Position(int x = 0, int y = 0, double relx = 0, double rely = 0,
const Size* parent_size = nullptr, const Position* parent_pos
= nullptr);
virtual ~Position() {}
int X() const;
int Y() const;
void SetX(int x);
void SetY(int y);
void SetPos(int x, int y);
void SetRel(double relx, double rely);
void SetParent(const Size* parent_size = nullptr,
const Position* parent_pos = nullptr);
int AlignedX(Alignment horizontal_align, int width) const;
int AlignedY(Alignment vertical_align, int height) const;
int x;
int y;
double relx;
double rely;
const Size* parent_size;
const Position* parent_pos;
private:
static int AlignAxis(Alignment alignment, int val, int size);
friend std::ostream& operator<<(std::ostream& os, Position pos);
};
extern std::ostream& operator<<(std::ostream& os, Position pos);
typedef Position::Alignment Alignment;
typedef Position::Size Size;
} // namespace gui
#endif // GRAPHCOLORING_GUI_POSITION_H_
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