test-example-projects/c++_projects/84wsoui3/controls.extend/SSplitBar.cpp

#include "stdafx.h"
#include "SSplitBar.h"
#include <layout\SouiLayoutParamStruct.h>
#include <layout\SouiLayout.h>
namespace SOUI
{

SSplitBar::SSplitBar():m_bDragging(FALSE)
    ,m_bResizeHostWnd(FALSE)
    ,m_nSizeMin(0)
    ,m_nSizeMax(0)
    ,m_bVertical(FALSE)
{

}

SSplitBar::~SSplitBar()
{

}

LRESULT SSplitBar::OnCreate( LPVOID )
{
    if(0 != __super::OnCreate(NULL)) return 1;
    ORIENTATION pi = m_bVertical ? Vert : Horz;
    m_nOrginPos = GetLayoutParam()->GetSpecifiedSize(pi).toPixelSize(GetScale());
    m_nTrackingPos = m_nOrginPos;

    return 0;
}

BOOL SSplitBar::OnSetCursor(const CPoint &pt)
{
    HCURSOR hCursor=GETRESPROVIDER->LoadCursor(m_bVertical?IDC_SIZEWE:IDC_SIZENS);
    SetCursor(hCursor);
    return TRUE;
}

void SSplitBar::OnLButtonDown(UINT nFlags,CPoint pt)
{
    SWindow::OnLButtonDown(nFlags, pt);

    m_ptDragPrev = pt;
    m_bDragging = TRUE;
}

void SSplitBar::OnLButtonUp(UINT nFlags,CPoint pt)
{
    SWindow::OnLButtonUp(nFlags, pt);

    m_bDragging = FALSE;
    ORIENTATION pi = m_bVertical ? Vert : Horz;
    m_nOrginPos = GetLayoutParam()->GetSpecifiedSize(pi).toPixelSize(GetScale());
    m_nTrackingPos = m_nOrginPos;
}

void SSplitBar::OnMouseMove(UINT nFlags,CPoint pt)
{
    SWindow::OnMouseMove(nFlags, pt);

    static int nLastUpdateTicks = 0;

    int now = GetTickCount();
    if (now - nLastUpdateTicks < 30 || !m_bDragging)
    {
        return;
    }
    nLastUpdateTicks = now;

    int nWindowOffset = 0;
    int nOffset = 0;

    // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>

    if (m_bVertical)
        nOffset = pt.x - m_ptDragPrev.x;
    else
        nOffset = pt.y - m_ptDragPrev.y;

    // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD>λ<EFBFBD><EFBFBD>

    //SwndLayout * pLayout = GetLayout();
    ORIENTATION pi = m_bVertical ? Vert : Horz;
    SouiLayoutParamStruct* pLayout = (SouiLayoutParamStruct*)GetLayoutParamT<SouiLayoutParam>()->GetRawData();

    int nNewPos = m_nOrginPos + nOffset * pLayout->posLeft.cMinus;

    /*
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     * 
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     *    <EFBFBD>϶<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD>5<EFBFBD><EFBFBD>px<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>-105<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>5px<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>295<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
     *    <EFBFBD><EFBFBD>λ<EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>190
     *
     *  - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>maxsize<EFBFBD><EFBFBD>minisize<EFBFBD>Ŀ<EFBFBD><EFBFBD>ơ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>bottom/right<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ò<EFBFBD><EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>
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    */

    HWND hWnd = GetContainer()->GetHostHwnd();
    BOOL bZoomed = ::IsZoomed(hWnd);
    BOOL bResizeWnd = m_bResizeHostWnd && !bZoomed;
    if (!(bResizeWnd && pLayout->posLeft.cMinus < 0))
    {
        if (nNewPos > m_nSizeMax)
            nNewPos = m_nSizeMax;

        if (nNewPos < m_nSizeMin)
            nNewPos = m_nSizeMin;

        if (nNewPos == pLayout->posLeft.nPos.toPixelSize(100))
            return;

        pLayout->posLeft.nPos = nNewPos;
    }

    // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

    nWindowOffset = nNewPos - m_nTrackingPos;
    nWindowOffset *= pLayout->posLeft.cMinus;
    m_nTrackingPos = nNewPos;

    if (bResizeWnd)
        ResizeHostWindow(nWindowOffset);
    else
        RequestRelayout();      
}

void SSplitBar::ResizeHostWindow(int nOffset)
{
    if ( m_bResizeHostWnd && nOffset != 0)
    {
        HWND hWnd = GetContainer()->GetHostHwnd();

        CRect rcWnd;
        ::GetWindowRect(hWnd, rcWnd);

        if (m_bVertical)
        {
            ::MoveWindow(hWnd, 
                rcWnd.left, 
                rcWnd.top, 
                rcWnd.Width() + nOffset,
                rcWnd.Height(),
                TRUE);
        }
        else
        {
            ::MoveWindow(hWnd, 
                rcWnd.left, 
                rcWnd.top, 
                rcWnd.Width(),
                rcWnd.Height() + nOffset,
                TRUE);
        }
    }
}

}//namespace SOUI