[Visual C++]美化VC界面(用户登录界面)
VC开发程序单调的界面相信大家都是深有感触，提到界面美化编程，人们都会说做界面不要用VC写，太难了。
一句俗语：难者不会，会者不难。VC的美化界面编程并没有人们想像的那么难。这篇文章是我写的一个用户登录界面，但界面被我美化了，我将一步一步的来讲解它的美化界面的实现步骤。相信有了这篇文章，你的VC界面从此也能绚丽多彩。
实现步骤：
第一步：美化界面的非客户区(重绘标题栏和界面边框)。
关键代码如下：
// 函 数 名：DrawTitleBar
// 功能描述：绘制标题栏、边框颜色，绘制标题内容、图标和按钮
// 输入参数：pDC：设备指针
// 输出参数：void
// 创建日期：2006-2-20
// 修改日期：2006-2-20
// 作 者：joinclear
// 附加说明：无
void CTitleBarColorDlg::DrawTitleBar(CDC *pDC)
{
if (m_hWnd)
{
CBrush Brush(RGB(187,200,143));
CBrush* pOldBrush = pDC->SelectObject(&Brush);
CRect rtWnd, rtTitle, rtButtons;
GetWindowRect(&rtWnd);
//取得标题栏的位置
//SM_CXFRAME 窗口边框的边缘宽度
//SM_CYFRAME 窗口边框的边缘高度
//SM_CXSIZE 窗口标题栏宽度
//SM_CYSIZE 窗口标题栏高度
rtTitle.left = GetSystemMetrics(SM_CXFRAME);
rtTitle.top = GetSystemMetrics(SM_CYFRAME);
rtTitle.right = rtWnd.right - rtWnd.left - GetSystemMetrics(SM_CXFRAME);
rtTitle.bottom = rtTitle.top + GetSystemMetrics(SM_CYSIZE);
CPoint point;
//填充顶部框架
point.x = rtWnd.Width();
point.y = GetSystemMetrics(SM_CYSIZE) + GetSystemMetrics(SM_CYFRAME) + 0;
pDC->PatBlt(0, 0, point.x, point.y, PATCOPY);
//填充左侧框架
point.x = GetSystemMetrics(SM_CXFRAME) -1;
point.y = rtWnd.Height()- 1;
pDC->PatBlt(0, 0, point.x, point.y, PATCOPY);
//填充底部框架
point.x = rtWnd.Width();
point.y = GetSystemMetrics(SM_CYFRAME);
pDC->PatBlt(0, rtWnd.Height()-point.y, point.x, point.y, PATCOPY);
//填充右侧框架
point.x = GetSystemMetrics(SM_CXFRAME);
point.y = rtWnd.Height();
pDC->PatBlt(rtWnd.Width()-point.x, 0, point.x, point.y, PATCOPY);
//重画标题栏图标
m_rtIcon.left = rtTitle.left ;
m_rtIcon.top = rtTitle.top;
m_rtIcon.right = m_rtIcon.left + 16;
m_rtIcon.bottom = m_rtIcon.top + 15;
::DrawIconEx(pDC->m_hDC, m_rtIcon.left, m_rtIcon.top, AfxGetApp()->LoadIcon(IDR_MAINFRAME),
m_rtIcon.Width(), m_rtIcon.Height(), 0, NULL, DI_NORMAL);
m_rtIcon.OffsetRect(rtWnd.TopLeft());
CBitmap* pBitmap = new CBitmap;
CBitmap* pOldBitmap;
CDC* pDisplayMemDC=new CDC;
pDisplayMemDC->CreateCompatibleDC(pDC);
//重画关闭button
rtButtons.left = rtTitle.right - 16;
rtButtons.top = rtTitle.top - 1;
rtButtons.right = rtButtons.left + 16;
rtButtons.bottom = rtButtons.top + 15;
pBitmap->LoadBitmap(IDB_EXIT_FOCUS);
pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
pDC->BitBlt(rtButtons.left, rtButtons.top, rtButtons.Width(), rtButtons.Height(), pDisplayMemDC, 0,
0, SRCCOPY);
pDisplayMemDC->SelectObject(pOldBitmap);
m_rtButtExit = rtButtons;
m_rtButtExit.OffsetRect(rtWnd.TopLeft());
pBitmap->DeleteObject();
//重画最大化/恢复button
rtButtons.right = rtButtons.left - 3;
rtButtons.left = rtButtons.right - 16;
if (IsZoomed())
pBitmap->LoadBitmap(IDB_RESTORE_NORMAL);
else
pBitmap->LoadBitmap(IDB_MAX_NORMAL);
pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
pDC->BitBlt(rtButtons.left, rtButtons.top, rtButtons.Width(), rtButtons.Height(), pDisplayMemDC, 0,
0, SRCCOPY);
pDisplayMemDC->SelectObject(pOldBitmap);
m_rtButtMax = rtButtons;
m_rtButtMax.OffsetRect(rtWnd.TopLeft());
pBitmap->DeleteObject();
//重画最小化button
rtButtons.right = rtButtons.left - 3;
rtButtons.left = rtButtons.right - 16;
pBitmap->LoadBitmap(IDB_MIN_NORMAL);
pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
pDC->BitBlt(rtButtons.left, rtButtons.top, rtButtons.Width(), rtButtons.Height(), pDisplayMemDC, 0,
0, SRCCOPY);
pDisplayMemDC->SelectObject(pOldBitmap);
m_rtButtMin = rtButtons;
m_rtButtMin.OffsetRect(rtWnd.TopLeft());
pBitmap->DeleteObject();
//重画caption
int nOldMode = pDC->SetBkMode(TRANSPARENT);
COLORREF clOldText=pDC->SetTextColor(RGB(255, 255, 255));
CFont m_captionFont;
m_captionFont.CreateFont(
18, // 字体的高度
0, // 字体的宽度
0, // 字体显示的角度
0, // 字体的角度
FW_BOLD, // 字体的磅数
FALSE, // 斜体字体
FALSE, // 带下划线的字体
0, // 带删除线的字体
ANSI_CHARSET, // 所需的字符集
OUT_DEFAULT_PRECIS, // 输出的精度
CLIP_DEFAULT_PRECIS, // 裁减的精度
DEFAULT_QUALITY, // 逻辑字体与输出设备的实际字体之间的精度
DEFAULT_PITCH | FF_SWISS, // 字体间距和字体集
_T("Arial")); // 字体名称
CFont* pOldFont = NULL;
pOldFont = pDC->SelectObject(&m_captionFont);
rtTitle.left += m_rtIcon.Width ()+3;
rtTitle.top = rtTitle.top;
rtTitle.bottom = rtTitle.top + 30;
CString m_strTitle;
GetWindowText(m_strTitle);
pDC->DrawText(m_strTitle, &rtTitle, DT_LEFT);
pDC->SetBkMode(nOldMode);
pDC->SetTextColor(clOldText);
ReleaseDC(pDisplayMemDC);
delete pDisplayMemDC;
delete pBitmap;
}
}
还有在非客户区 绘制鼠标的消息。分别为：
void CTitleBarColorDlg::OnNcLButtonDown(UINT nHitTest, CPoint point)
{
if (m_rtButtExit.PtInRect(point)) //关闭
SendMessage(WM_CLOSE);
else if (m_rtButtMin.PtInRect(point)) //最小化
SendMessage(WM_SYSCOMMAND, SC_MINIMIZE, MAKELPARAM(point.x, point.y));
else if (m_rtButtMax.PtInRect(point))
{
if (IsZoomed()) //最大化
{
SendMessage(WM_SYSCOMMAND, SC_RESTORE, MAKELPARAM(point.x, point.y));
CRect rtWnd;
GetWindowRect(&rtWnd);
CRgn rgn;
rgn.CreateRoundRectRgn(0,0,rtWnd.Width(),rtWnd.Height(),5,5);
SetWindowRgn((HRGN)rgn,true);
Invalidate();
}
else
{
SendMessage(WM_SYSCOMMAND, SC_MAXIMIZE, MAKELPARAM(point.x, point.y));
CRect rtWnd;
GetWindowRect(&rtWnd);
CRgn rgn;
rgn.CreateRoundRectRgn(0,0,rtWnd.Width(),rtWnd.Height(),5,5);
SetWindowRgn((HRGN)rgn,true);
Invalidate();
}
}
else if (!IsZoomed())
Default();
}
void CTitleBarColorDlg::OnNcMouseMove(UINT nHitTest, CPoint point)
{
CWindowDC dc(this);
CWindowDC* pDC = &dc;
CDC* pDisplayMemDC=new CDC;
pDisplayMemDC->CreateCompatibleDC(pDC);
CBitmap* pBitmap = new CBitmap;
CBitmap* pOldBitmap;
CRect rtWnd, rtButton;
if (pDC)
{
GetWindowRect(&rtWnd);
//关闭button
if (m_rtButtExit.PtInRect(point))
pBitmap->LoadBitmap(IDB_EXIT_NORMAL);
else
pBitmap->LoadBitmap(IDB_EXIT_FOCUS);
rtButton = m_rtButtExit;
rtButton.OffsetRect(-rtWnd.left, -rtWnd.top);
pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
pDC->BitBlt(rtButton.left, rtButton.top, rtButton.Width(), rtButton.Height(), pDisplayMemDC, 0, 0,
SRCCOPY);
pDisplayMemDC->SelectObject(pOldBitmap);
pBitmap->DeleteObject();
//最大化/恢复button
if (m_rtButtMax.PtInRect(point))
{
if (IsZoomed())
pBitmap->LoadBitmap(IDB_RESTORE_FOCUS);
else
pBitmap->LoadBitmap(IDB_MAX_FOCUS);
}
else
{
if (IsZoomed())
pBitmap->LoadBitmap(IDB_RESTORE_NORMAL);
else
pBitmap->LoadBitmap(IDB_MAX_NORMAL);
}
rtButton = m_rtButtMax;
rtButton.OffsetRect(-rtWnd.left, -rtWnd.top);
pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
pDC->BitBlt(rtButton.left, rtButton.top, rtButton.Width(), rtButton.Height(), pDisplayMemDC, 0, 0,
SRCCOPY);
pDisplayMemDC->SelectObject(pOldBitmap);
pBitmap->DeleteObject();
//最小化button
if (m_rtButtMin.PtInRect(point))
pBitmap->LoadBitmap(IDB_MIN_FOCUS);
else
pBitmap->LoadBitmap(IDB_MIN_NORMAL);
rtButton = m_rtButtMin;
rtButton.OffsetRect(-rtWnd.left, -rtWnd.top);
pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
pDC->BitBlt(rtButton.left, rtButton.top, rtButton.Width(), rtButton.Height(), pDisplayMemDC, 0, 0,
SRCCOPY);
pDisplayMemDC->SelectObject(pOldBitmap);
pBitmap->DeleteObject();
}
pDisplayMemDC->DeleteDC();
delete pDisplayMemDC;
delete pBitmap;
CDialog::OnNcMouseMove(nHitTest, point);
}
大部分实现如上代码所示具体实现请参照程序附带的源代码。
第二步：改变窗口边框为圆角。
关键代码如下：
int CTitleBarColorDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialog::OnCreate(lpCreateStruct) == -1)
return -1;
CRect rtWnd;
GetWindowRect(&rtWnd);
CRgn rgn;
rgn.CreateRoundRectRgn(0,0,rtWnd.Width(),rtWnd.Height(),5,5);
SetWindowRgn((HRGN)rgn,true);
return 0;
}
第三步：填充背景。
关键代码如下：
BOOL CTitleBarColorDlg::OnEraseBkgnd(CDC* pDC)
{
BOOL retValue= CDialog::OnEraseBkgnd(pDC);
CRect rc;
GetClientRect(&rc);
pDC->FillSolidRect(&rc,RGB(236,233,216));
return retValue;
}
第四步：绘制按钮。
具体请参考源代码中类CXPButton.h、CXPButton.cpp
第五步：绘制编辑框。
具体请参考源代码中类COwnerEdit.h、COwnerEdit.cpp
第六步：绘制静态字体和颜色。
这一步本来也写了一个类的，但想想用OnCtlColor()还是能很好的实现的，就没写。具体实现请看OnCtlColor()中的实现。
以上代码具体实现的细节问题，你可以下载例子代码，仔细查看其源码实现(内有详细注释)。
