重写CMFCRibbonStatusBarPane类

参考了MFC源码,继承CMFCRibbonStatusBarPane,重写OnDraw虚函数,实现字体颜色和图标的切换。

//.h文件内容
#pragma once
#include "afxribbonstatusbarpane.h"
#include "MemDC.h"
class CScale3DCStatusBarPanel : public CMFCRibbonStatusBarPane
{
public:
	CScale3DCStatusBarPanel(
	UINT     nCmdID,                     // Pane command id
	LPCTSTR  lpszText,                   // Pane label
	BOOL     bIsStatic = FALSE,          // Pane is static (non-clickable)
	HICON    hIcon = NULL,               // Pane icon
	LPCTSTR  lpszAlmostLargeText = NULL);// The almost large text in pane
	
        ~CScale3DCStatusBarPanel();
        
	virtual void OnDraw(CDC* pDC);
	
protected:
	BOOL  m_bIsOpen = TRUE;     //是否显示红色字体

public:
	void   SetTextColor(BOOL bIsValue = FALSE);     //设置字体颜色
};
//.cpp文件内容
#include "stdafx.h"
#include "Scale3DCStatusBarPanel.h"
#include "resource.h"

CScale3DCStatusBarPanel::CScale3DCStatusBarPanel(
UINT nCmdID, LPCTSTR lpszText, BOOL bIsStatic, 
HICON hIcon, LPCTSTR lpszAlmostLargeText
)
{
	CommonInit();
	//父类成员变量
	m_strAlmostLargeText = 
	(lpszAlmostLargeText == NULL) ? _T("") : lpszAlmostLargeText;
	
	m_bIsStatic = bIsStatic;
        m_strText = lpszText;

	m_bIsOpen = FALSE;//自定义成员变量
}

void CScale3DCStatusBarPanel::OnDraw(CDC* pDC)
{
	ASSERT_VALID(this);
	ASSERT_VALID(pDC);

	if (m_rect.IsRectEmpty())
	{
		return;
	}
	else
	{
		m_rt.CopyRect(m_rect);
	}
	OnFillBackground(pDC);

	pDC->SetTextColor(RGB(21, 66, 139));
	pDC->DrawText(m_strText, m_rect, DT_LEFT);

	OnDrawBorder(pDC);
}


void CScale3DCStatusBarPanel::SetTextColor(BOOL bValue)
{
	m_bIsOpen = bValue;
}

调用方法如下:
m_wndStatusBar.AddElement(new CScale3DCStatusBarPanel(ID_STATUSBAR_PANE4, strComWork + strComWork1 + _T("(0)"), TRUE), strComWork);

CScale3DCStatusBarPanel* pElem = (CScale3DCStatusBarPanel*)m_wndStatusBar.GetElement(7);

pElem->SetAlmostLargeText(_T("........................................"));

pElem->Redraw();