// CPjPage1.cpp: 实现文件
//

#include "stdafx.h"
#include "Servo.h"
#include "CCjPage1.h"
#include "afxdialogex.h"


// CPjPage1 对话框

IMPLEMENT_DYNAMIC(CCjPage1, CDialogEx)

CCjPage1::CCjPage1(CWnd* pParent /*=nullptr*/)
	: CDialogEx(IDD_CJ_PAGE1, pParent)
{
    m_crBkgnd = RGB(255, 255, 255);
    m_crBkgndCached = CLR_INVALID;
}

CCjPage1::~CCjPage1()
{
}

void CCjPage1::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}


BEGIN_MESSAGE_MAP(CCjPage1, CDialogEx)
	ON_WM_CTLCOLOR()
	ON_WM_DESTROY()
	ON_WM_SIZE()
END_MESSAGE_MAP()


// CPjPage1 消息处理程序


BOOL CCjPage1::OnInitDialog()
{
	CDialogEx::OnInitDialog();
    Resize();

	return TRUE;  // return TRUE unless you set the focus to a control
				  // 异常: OCX 属性页应返回 FALSE
}


HBRUSH CCjPage1::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    HBRUSH hbr = CDialogEx::OnCtlColor(pDC, pWnd, nCtlColor);

    // 想给哪些控件改底色就把它们的类型写进来：
    const bool needCustomBg =
        (nCtlColor == CTLCOLOR_STATIC) ||
        (nCtlColor == CTLCOLOR_DLG) ||   // 对话框底色
        (nCtlColor == CTLCOLOR_BTN);        // 按钮（可选）

    if (needCustomBg)
    {
        // 若第一次创建，或颜色改变则重建
        if (m_brBkgnd.GetSafeHandle() == nullptr || m_crBkgndCached != m_crBkgnd)
        {
            if (m_brBkgnd.GetSafeHandle())
                m_brBkgnd.DeleteObject();

            m_brBkgnd.CreateSolidBrush(m_crBkgnd);
            m_crBkgndCached = m_crBkgnd;
        }

        // 文本前景/背景设置（仅影响文本绘制）
        pDC->SetBkColor(m_crBkgnd);
        pDC->SetTextColor(RGB(0, 0, 0));
        // 如需让静态文本透明叠在底色上，可用：
        // pDC->SetBkMode(TRANSPARENT);

        return (HBRUSH)m_brBkgnd; // 安全的隐式转换
    }

    // 其他控件类型沿用基类默认的刷子
    return hbr;
}

void CCjPage1::OnDestroy()
{
	CDialogEx::OnDestroy();

	// TODO: 在此处添加消息处理程序代码
}

void CCjPage1::OnSize(UINT nType, int cx, int cy)
{
	CDialogEx::OnSize(nType, cx, cy);
    if (GetDlgItem(IDC_LABEL_NO_SEL) == nullptr) return;
    Resize();
}

void CCjPage1::Resize()
{
    CWnd* pItem;
    CRect rcClient, rcItem;
    GetClientRect(&rcClient);
    pItem = GetDlgItem(IDC_LABEL_NO_SEL);
    pItem->GetWindowRect(&rcItem);
    pItem->MoveWindow((rcClient.Width() - rcItem.Width()) / 2,
        (rcClient.Height() - rcItem.Height()) / 2,
        rcItem.Width(), rcItem.Height());
}