/********************************************************************
*
* Copyright (c) 2002 Sven Wiegand <mail@sven-wiegand.de>
*
* You can use this and modify this in any way you want,
* BUT LEAVE THIS HEADER INTACT.
*
* Redistribution is appreciated.
*
* $Workfile:$
* $Revision:$
* $Modtime:$
* $Author:$
*
* Revision History:
*   $History:$
*
*********************************************************************/

#include "stdafx.h"
#include "PropPageFrameDefault.h"
#include "ExtTextOutFL.h"

namespace TreePropSheet
{


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


//-------------------------------------------------------------------
// class CPropPageFrameDefault
//-------------------------------------------------------------------

BEGIN_MESSAGE_MAP(CPropPageFrameDefault, CWnd)
    //{{AFX_MSG_MAP(CPropPageFrameDefault)
    ON_WM_PAINT()
    ON_WM_ERASEBKGND()
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()


CPropPageFrameDefault::CPropPageFrameDefault()
{
}


CPropPageFrameDefault::~CPropPageFrameDefault()
{
    if (m_Images.GetSafeHandle())
        m_Images.DeleteImageList();
}


/////////////////////////////////////////////////////////////////////
// Overridings

BOOL CPropPageFrameDefault::Create(DWORD dwWindowStyle, const RECT &rect, CWnd *pwndParent, UINT nID)
{
    return CWnd::Create(
        AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW, AfxGetApp()->LoadStandardCursor(IDC_ARROW), GetSysColorBrush(COLOR_3DFACE)),
        _T("Page Frame"),
        dwWindowStyle, rect, pwndParent, nID);
}


CWnd* CPropPageFrameDefault::GetWnd()
{
    return static_cast<CWnd*>(this);
}


void CPropPageFrameDefault::SetCaption(LPCTSTR lpszCaption, HICON hIcon /*= NULL*/)
{
    CPropPageFrame::SetCaption(lpszCaption, hIcon);

    // build image list
    if (m_Images.GetSafeHandle())
        m_Images.DeleteImageList();
    if (hIcon)
    {
        ICONINFO    ii;
        if (!GetIconInfo(hIcon, &ii))
            return;

        CBitmap bmMask;
        bmMask.Attach(ii.hbmMask);
        if (ii.hbmColor) DeleteObject(ii.hbmColor);

        BITMAP  bm;
        bmMask.GetBitmap(&bm);

        if (!m_Images.Create(bm.bmWidth, bm.bmHeight, ILC_COLOR32 | ILC_MASK | ILC_HIGHQUALITYSCALE, 0, 1))
            return;

        if (m_Images.Add(hIcon) == -1)
            m_Images.DeleteImageList();
    }
}


CRect CPropPageFrameDefault::CalcMsgArea()
{
    CRect   rect;
    GetClientRect(rect);
    if (IsAppThemed())
    {
        HTHEME hTheme = OpenThemeData(m_hWnd, L"Tab");
        if (hTheme)
        {
            CRect   rectContent;
            CDC     *pDc = GetDC();
            GetThemeBackgroundContentRect(hTheme, pDc->m_hDC, TABP_PANE, 0, rect, rectContent);
            ReleaseDC(pDc);
            CloseThemeData(hTheme);

            if (GetShowCaption())
                rectContent.top = rect.top+GetCaptionHeight()+1;
            rect = rectContent;
        }
    }
    else if (GetShowCaption())
        rect.top+= GetCaptionHeight()+1;

    return rect;
}


CRect CPropPageFrameDefault::CalcCaptionArea()
{
    CRect   rect;
    GetClientRect(rect);
    if (IsAppThemed())
    {
        HTHEME hTheme = OpenThemeData(m_hWnd, L"Tab");
        if (hTheme)
        {
            CRect   rectContent;
            CDC     *pDc = GetDC();
            GetThemeBackgroundContentRect(hTheme, pDc->m_hDC, TABP_PANE, 0, rect, rectContent);
            ReleaseDC(pDc);
            CloseThemeData(hTheme);

            if (GetShowCaption())
                rectContent.bottom = rect.top+GetCaptionHeight();
            else
                rectContent.bottom = rectContent.top;

            rect = rectContent;
        }
    }
    else
    {
        if (GetShowCaption())
            rect.bottom = rect.top+GetCaptionHeight();
        else
            rect.bottom = rect.top;
    }

    return rect;
}

void CPropPageFrameDefault::DrawCaption(CDC *pDc, CRect rect, LPCTSTR lpszCaption, HICON hIcon)
{
    COLORREF    clrLeft = GetSysColor(COLOR_INACTIVECAPTION);
    COLORREF    clrRight = pDc->GetPixel(rect.right-1, rect.top);
    if (IsDarkTheme())
        std::swap(clrLeft, clrRight);
    FillGradientRectH(pDc, rect, clrLeft, clrRight);

    // draw icon
    if (hIcon && m_Images.GetSafeHandle() && m_Images.GetImageCount() == 1)
    {
        IMAGEINFO   ii;
        m_Images.GetImageInfo(0, &ii);
        CPoint      pt(6, rect.CenterPoint().y - (ii.rcImage.bottom-ii.rcImage.top)/2);
        m_Images.Draw(pDc, 0, pt, ILD_TRANSPARENT);
        rect.left+= (ii.rcImage.right-ii.rcImage.left) + 6;
    }

    // draw text
    rect.left+= 2;

    COLORREF    clrPrev = IsDarkTheme() ? pDc->SetTextColor(GetSysColor(COLOR_ACTIVECAPTION)) : pDc->SetTextColor(GetSysColor(COLOR_CAPTIONTEXT));
    int             nBkStyle = pDc->SetBkMode(TRANSPARENT);
    //CFont           *pFont = (CFont*)pDc->SelectStockObject(SYSTEM_FONT);
    CFont font;
    font.CreatePointFont(100, L"Arial", pDc);
    CFont * pFont = (CFont*)pDc->SelectObject(&font);

    //pDc->DrawText(lpszCaption, rect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_END_ELLIPSIS);

    textOutTryFl(pDc->GetSafeHdc(), rect.left, rect.top, lpszCaption, (int)_tcslen(lpszCaption));

    pDc->SetTextColor(clrPrev);
    pDc->SetBkMode(nBkStyle);
    pDc->SelectObject(pFont);
}


/////////////////////////////////////////////////////////////////////
// Implementation helpers

void CPropPageFrameDefault::FillGradientRectH(CDC *pDc, const RECT &rect, COLORREF clrLeft, COLORREF clrRight)
{
    // pre calculation
    int nSteps = rect.right-rect.left;
    int nRRange = GetRValue(clrRight)-GetRValue(clrLeft);
    int nGRange = GetGValue(clrRight)-GetGValue(clrLeft);
    int nBRange = GetBValue(clrRight)-GetBValue(clrLeft);

    double  dRStep = (double)nRRange/(double)nSteps;
    double  dGStep = (double)nGRange/(double)nSteps;
    double  dBStep = (double)nBRange/(double)nSteps;

    double  dR = (double)GetRValue(clrLeft);
    double  dG = (double)GetGValue(clrLeft);
    double  dB = (double)GetBValue(clrLeft);

    CPen    *pPrevPen = NULL;
    for (int x = rect.left; x <= rect.right; ++x)
    {
        CPen    Pen(PS_SOLID, 1, RGB((BYTE)dR, (BYTE)dG, (BYTE)dB));
        pPrevPen = pDc->SelectObject(&Pen);
        pDc->MoveTo(x, rect.top);
        pDc->LineTo(x, rect.bottom);
        pDc->SelectObject(pPrevPen);

        dR+= dRStep;
        dG+= dGStep;
        dB+= dBStep;
    }
}


/////////////////////////////////////////////////////////////////////
// message handlers

void CPropPageFrameDefault::OnPaint()
{
    CPaintDC dc(this);
    Draw(&dc);
}


BOOL CPropPageFrameDefault::OnEraseBkgnd(CDC* pDC)
{
    if (IsDarkTheme())
    {
        CRect   rect;
        GetClientRect(rect);
        pDC->FillSolidRect(&rect, 0);
        return TRUE;
    }
    if (IsAppThemed())
    {
        HTHEME hTheme = OpenThemeData(m_hWnd, L"TREEVIEW");
        if (hTheme)
        {
            CRect   rect;
            GetClientRect(rect);
            DrawThemeBackground(hTheme, pDC->m_hDC, 0, 0, rect, NULL);
            CloseThemeData(hTheme);
        }
        return TRUE;
    }
    else
    {
        return CWnd::OnEraseBkgnd(pDC);
    }
}



} //namespace TreePropSheet