TnbMfcPositionAdjuster.h

[詳解]

#pragma once
#include "TnbMfcCommon.h"
#include "TnbDrawable.h"
 
 
 
//TNB Library
namespace TNB
{
 
 
 
class CPositionAdjuster : public IDrawable
{
    DEFSUPER(IDrawable);
protected:
 
    CWnd*   m_pWnd;         
    bool    m_boCanResize;  
    bool    m_boAlways;     
public:
 
    CPositionAdjuster(CWnd* pWnd, bool canResize = true, bool boAlways = false)
        : m_pWnd(pWnd), m_boCanResize(canResize), m_boAlways(boAlways)
    {
    }
 
    virtual IDrawable* Clone(void) const
    {
        return new CPositionAdjuster(m_pWnd, m_boCanResize, m_boAlways);
    }
 
    virtual bool GetSize(SIZE& _size) const
    {
        if ( m_pWnd != NULL )
        {
            CRect rc;
            m_pWnd->GetWindowRect(&rc);
            _size.cx = rc.Width();
            _size.cy = rc.Height();
            return true;
        }
        return false;
    }
 
    virtual bool Resize(const SIZE& size)
    {
        if ( m_boCanResize && m_pWnd != NULL )
        {
            return !! m_pWnd->SetWindowPos(NULL, 0, 0, size.cx, size.cy, SWP_NOMOVE | SWP_NOZORDER);
        }
        return false;
    }
    
    virtual void Draw(HDC dc, int x = 0, int y = 0) const
    {
        if ( m_boAlways || dc == NULL )
        {
            CRect rc;
            m_pWnd->GetWindowRect(&rc);
            m_pWnd->MoveWindow(x, y, rc.Width(), rc.Height(), false);
            m_pWnd->RedrawWindow();
            MFCLIB::SetProcessingFlag(m_pWnd->GetSafeHwnd(), true);
        }
    }
};
 
 
 
};