DlgResizer.h

// sktoolslib - common files for SK tools

// Copyright (C) 2012-2013, 2020-2021 - Stefan Kueng

// 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 2
// 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, write to the Free Software Foundation,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#pragma once

#include <vector>

#define RESIZER_TOPLEFT             0
#define RESIZER_TOPRIGHT            1
#define RESIZER_TOPLEFTRIGHT        2
#define RESIZER_TOPLEFTBOTTOMRIGHT  3
#define RESIZER_BOTTOMLEFT          4
#define RESIZER_BOTTOMRIGHT         5
#define RESIZER_BOTTOMLEFTRIGHT     6
#define RESIZER_TOPLEFTBOTTOMLEFT   7
#define RESIZER_TOPRIGHTBOTTOMRIGHT 8

struct ResizeCtrls
{
    HWND hWnd;
    UINT resizeType;
    RECT origSize;
};

class CDlgResizer
{
public:
    CDlgResizer();
    ~CDlgResizer();

    void Init(HWND hWndDlg);
    void AddControl(HWND hWndDlg, UINT ctrlId, UINT resizeType);
    void AdjustMinMaxSize();

    void DoResize(int width, int height);

    RECT* GetDlgRect() { return &m_dlgRect; }
    RECT* GetDlgRectScreen() { return &m_dlgRectScreen; }
    void  UpdateGripPos() const;
    void  UseSizeGrip(bool use)
    {
        m_useSizeGrip = use;
        ShowSizeGrip(m_useSizeGrip);
    }

private:
    void                     ShowSizeGrip(bool bShow = true) const;
    HWND                     m_hDlg;
    std::vector<ResizeCtrls> m_controls;
    RECT                     m_dlgRect;
    RECT                     m_dlgRectScreen;
    SIZE                     m_sizeGrip;
    HWND                     m_wndGrip;
    bool                     m_useSizeGrip;
};