CWindowShape.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 <sptk5/gui/CShapePoint.h>
#include <sptk5/gui/sptk_fltk_version.h>
#include <vector>
 
namespace sptk {
 
class CWindow;
 
class SP_EXPORT CWindowShape
{
    sptk::CWindow* m_window;
 
    int m_lastW {0};
 
    int m_lastH {0};
 
protected:
    int m_resizingZone {0};
 
    int m_pushedX {0};
 
    int m_pushedY {0};
 
    std::vector<CShapePoint> m_shapePoints;
 
    bool m_shapeChanged {true};
 
    int m_borderWidth {6};
 
    bool m_borderCleared {false};
 
    bool m_shapeExtension {false};
 
    int mouseZone(int mouseX, int mouseY) const;
 
    void changeSize(int mouseX, int mouseY);
 
    virtual int shapeCursorHandle(int event);
 
public:
    explicit CWindowShape(sptk::CWindow* window);
 
    virtual ~CWindowShape()
    {
    }
 
    bool shapeResizing()
    {
        return m_resizingZone != 0;
    }
 
protected:
    void initShapeExtension();
 
    bool borderCleared() const
    {
        return m_borderCleared;
    }
 
    void shapeApply();
 
    void resizingShape(int w, int h)
    {
        if (m_lastW == w && m_lastH == h)
            return;
        shapeResize(w, h);
        m_shapeChanged = true;
        m_lastW = w;
        m_lastH = h;
    }
 
    virtual void shapeResize(int w, int h)
    {
        // Implemented in derived class
    }
};
} // namespace sptk