CScrollBar.h

/*
╔══════════════════════════════════════════════════════════════════════════════╗
║                       SIMPLY POWERFUL TOOLKIT (SPTK)                         ║
╟──────────────────────────────────────────────────────────────────────────────╢
║  copyright            © 1999-2022 Alexey Parshin. All rights reserved.       ║
║  email                alexeyp@gmail.com                                      ║
╚══════════════════════════════════════════════════════════════════════════════╝
┌──────────────────────────────────────────────────────────────────────────────┐
│   This library is free software; you can redistribute it and/or modify it    │
│   under the terms of the GNU Library General Public License as published by  │
│   the Free Software Foundation; either version 2 of the License, or (at your │
│   option) any later version.                                                 │
│                                                                              │
│   This library 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 Library   │
│   General Public License for more details.                                   │
│                                                                              │
│   You should have received a copy of the GNU Library General Public License  │
│   along with this library; if not, write to the Free Software Foundation,    │
│   Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.               │
│                                                                              │
│   Please report all bugs and problems to alexeyp@gmail.com.                  │
└──────────────────────────────────────────────────────────────────────────────┘
*/
 
#pragma once
 
#include <FL/Fl_Scrollbar.H>
#include <sptk5/sptk.h>
#include <sptk5/gui/CLayoutClient.h>
 
namespace sptk {
 
class SP_EXPORT CScrollBar
    : public Fl_Scrollbar, public CLayoutClient
{
    int m_pushed {0};
 
protected:
 
    void draw() override;
 
public:
    CScrollBar(int layoutSize = 16, CLayoutAlign layoutAlign = CLayoutAlign::RIGHT)
        : Fl_Scrollbar(0, 0, 10, 10), CLayoutClient(this, layoutSize, layoutAlign)
    {
    }
 
    CScrollBar(int x, int y, int w, int h)
        : Fl_Scrollbar(x, y, w, h), CLayoutClient(this, 10, CLayoutAlign::NONE)
    {
    }
 
    bool preferredSize(int& w, int& h) override;
 
    int handle(int event) override;
 
    String className() const override
    {
        return "scroll_bar";
    }
};
}