扩展金山提示框，使之带颜色(二)
动态提示框最好能有三个功能：1.动态地改变大小 2.支持多种颜色 3.能有个确定按钮
1.用xml给提示框来个布局。
<layer>
<header class="msgboxhead" width="full" height="31">
<icon src="100" pos="5,9"/>
<text id="60004" class="dlgtitle" pos="25,10">%str1%</text>
<imgbtn id="60001" class="linkimage" skin="closeonlybtn" pos="-43,0"/>
</header>
<footer class="msgboxfoot" width="full" height="55">
<dlg id="60008" pos="0,0,-0,-10" class="client"/>
</footer>
<body class="msgboxbody" width="full" height="full">
<dlg pos="0,0,-0,-0">
<dlg pos="0,0,-0,-20">
<icon id="60005" pos="20,20" src="32516" oem="1" size="32"/>
<richtext id="60006" pos="70,20,-0,-0" />
</dlg>
</dlg>
</body>
</layer>
2.提示框大小和提示框位置个如何确定?
首先是大小,如果能确定变换文字的大小（richtext）就可以用richtext的大小+header+footer+按钮+空行 来确定对话框的大小。
通过DrawText(...DT_CALCRECT)来计算宽度。
list<LISTITEM> ::iterator pos;
for (pos = m_lstMsg.begin(); pos != m_lstMsg.end(); ++pos)
{
LISTITEM item = (*pos);
dc.DrawText(item.strText, item.strText.GetLength(), rcText, textStyle.m_nTextAlign | DT_CALCRECT);
if (nWidth < rcText.Width())
nWidth = rcText.Width();
}
其次，我们来确定对话框的高度，我们用一个list来存贮提示信息，其中每个元素是一句话，占一行。
我们用确定一下没行的高度（行高），用 行高*行数 +header+footer+按钮+空行 即可算出提示框的高度。
void CColorMsgBox::CalcRect(CRect &rc1)
{
int nHeight = m_lstMsg.size() * 18;;
int nWidth = 418;
CWindowDC dc(::GetDesktopWindow());
CRect rcText(0, 0, 1000, 1000);
const BkStyle& textStyle = BkStyle::GetStyle("msgtext");
dc.SelectFont(textStyle.m_ftText);
list<LISTITEM> ::iterator pos;
for (pos = m_lstMsg.begin(); pos != m_lstMsg.end(); ++pos)
{
LISTITEM item = (*pos);
dc.DrawText(item.strText, item.strText.GetLength(), rcText, textStyle.m_nTextAlign | DT_CALCRECT);
if (nWidth < rcText.Width())
nWidth = rcText.Width();
}
rc1.left = 0;
rc1.top = 0;
rc1.right = nWidth+10;
rc1.bottom = nHeight+135;
}
3.增加按钮。
void CColorMsgBox::AddButton()
{
CString strButtonXmlFormat, strButtons, strButtonDiv;
CString strText = "确定";
CWindowDC dc(::GetDesktopWindow());
CRect rcText(0, 0, 1000, 1000);
const BkStyle& btnStyle = BkStyle::GetStyle("normalbtn");
HFONT hftOld = dc.SelectFont(btnStyle.m_ftText);
dc.DrawText(strText, strText.GetLength(), rcText, btnStyle.m_nTextAlign | DT_CALCRECT);
rcText.InflateRect(btnStyle.m_nMarginX, btnStyle.m_nMarginY);
dc.SelectFont(hftOld);
int uWidth = max(80, rcText.Width());
strButtonXmlFormat = BkString::Get(IDS_MSGBOX_BUTTON_XML);
UINT uLeft = 0;
strButtons.AppendFormat(strButtonXmlFormat, IDC_BTN_SYS_CLOSE, uLeft, uLeft + uWidth,_T("确定"));
uLeft += uWidth;
strButtonDiv.Format(BkString::Get(IDS_MSGBOX_BUTTON_DIV), uWidth / 2, uWidth / 2, strButtons);
SetPanelXml(IDC_DIV_MSGBOX_BUTTONS, CT2A(strButtonDiv, CP_UTF8));
}
其中，BkString::Get(IDS_MSGBOX_BUTTON_XML);中的IDS_MSGBOX_BUTTON_XML对应着一个字符串
<s id="17"><button id=%d pos="%d,5,%d,-5" class=normalbtn>%s</button></s>
格式化后就可动态产生一个“确定”按钮了。
4.提示框的颜色，我们利用了richtext对应类CBkRichText，其中有对颜色的绘制。
else if (0 == stricmp(pElemChild->Value(), "c"))
{
COLORREF clrText = CBkObject::HexStringToColor(pElemChild->Attribute("color"));
crTextOld = dc.SetTextColor( clrText );
if( crTextOld == CLR_INVALID )
{
crTextOld = 0;
}
}
5，上总的代码。
ColorMsgBox.h
#pragma once
#include <atlcoll.h>
#include <wtlhelper/whwindow.h>
enum TextColor
{
enRed = 1, //已安装
enGreen = 2, //更新服务器配置文件状态
enBlue = 3, //版本已更新，请通过软件小管家下载
};
typedef struct listItem
{
CString strText;
TextColor clr;
}LISTITEM;
class CColorMsgBox
: public CBkDialogImpl<CColorMsgBox>
, public CWHRoundRectFrameHelper<CColorMsgBox>
{
public:
CColorMsgBox();
~CColorMsgBox();
void AppendMsg(TextColor textClr,LPCWSTR lpszText);
void ShowMsg();
protected:
list<LISTITEM> m_lstMsg;
BOOL OnInitDialog(CWindow /*wndFocus*/, LPARAM /*lInitParam*/);
void OnBkBtnClose();
void OnSize(UINT nType, CSize size);
void AddButton();
void CalcRect(CRect &rc);
BK_NOTIFY_MAP(IDC_RICHVIEW_WIN)
BK_NOTIFY_ID_COMMAND(IDC_BTN_SYS_CLOSE,OnBkBtnClose)
//BK_NOTIFY_COMMAND(OnBkCommand)
BK_NOTIFY_MAP_END()
BEGIN_MSG_MAP_EX(CColorMsgBox)
MSG_BK_NOTIFY(IDC_RICHVIEW_WIN)
CHAIN_MSG_MAP(CBkDialogImpl<CColorMsgBox>)
CHAIN_MSG_MAP(CWHRoundRectFrameHelper<CColorMsgBox>)
MSG_WM_INITDIALOG(OnInitDialog)
MSG_WM_SIZE(OnSize)
END_MSG_MAP()
};
ColorMsgBox.cpp
#include "stdafx.h"
#include "ColorMsgBox.h"
CColorMsgBox::CColorMsgBox()
: CBkDialogImpl<CColorMsgBox>(IDR_BK_MSGBOX4)
{
}
CColorMsgBox::~CColorMsgBox()
{
m_lstMsg.clear();
}
void CColorMsgBox::ShowMsg()
{
this->DoModal();
}
void CColorMsgBox::AppendMsg(TextColor textClr,LPCWSTR lpszText)
{
LISTITEM item;
item.clr = textClr;
item.strText = lpszText;
m_lstMsg.push_back(item);
}
void CColorMsgBox::AddButton()
{
CString strButtonXmlFormat, strButtons, strButtonDiv;
CString strText = "确定";
CWindowDC dc(::GetDesktopWindow());
CRect rcText(0, 0, 1000, 1000);
const BkStyle& btnStyle = BkStyle::GetStyle("normalbtn");
HFONT hftOld = dc.SelectFont(btnStyle.m_ftText);
dc.DrawText(strText, strText.GetLength(), rcText, btnStyle.m_nTextAlign | DT_CALCRECT);
rcText.InflateRect(btnStyle.m_nMarginX, btnStyle.m_nMarginY);
dc.SelectFont(hftOld);
int uWidth = max(80, rcText.Width());
strButtonXmlFormat = BkString::Get(IDS_MSGBOX_BUTTON_XML);
UINT uLeft = 0;
strButtons.AppendFormat(strButtonXmlFormat, IDC_BTN_SYS_CLOSE, uLeft, uLeft + uWidth,_T("确定"));
uLeft += uWidth;
strButtonDiv.Format(BkString::Get(IDS_MSGBOX_BUTTON_DIV), uWidth / 2, uWidth / 2, strButtons);
SetPanelXml(IDC_DIV_MSGBOX_BUTTONS, CT2A(strButtonDiv, CP_UTF8));
}
BOOL CColorMsgBox::OnInitDialog(CWindow /*wndFocus*/, LPARAM /*lInitParam*/)
{
CString strMsg;
list<LISTITEM> ::iterator pos;
for (pos = m_lstMsg.begin(); pos != m_lstMsg.end(); ++pos)
{
LISTITEM item = (*pos);
CString strTmp;
if (item.clr == enRed)
{
strTmp = "a31515";
}
else if (item.clr == enGreen)
{
strTmp = "008000";
}
else if (item.clr == enBlue)
{
strTmp = "0000ff";
}
strMsg += "<c color='"+strTmp+"'>" + item.strText +"</c><br/>";;
}
SetRichText(60006,strMsg);
CRect thisRect;
// 根据提示信息的内容，动态计算提示框大小
CalcRect(thisRect);
// 增加“确定”按钮
AddButton();
CRect rc;
CRect rcClient;
SystemParametersInfo(SPI_GETWORKAREA,0,&rc,0);
rcClient.left = ((rc.Width() - thisRect.Width()) >> 1);
rcClient.right = rcClient.left + thisRect.Width();
rcClient.top = ((rc.Height() - thisRect.Height()) >> 1);
rcClient.bottom= rcClient.top + thisRect.Height();
MoveWindow(&rcClient,FALSE);
ShowWindow(SW_SHOW);
return TRUE;
}
void CColorMsgBox::OnSize(UINT nType, CSize size)
{
}
void CColorMsgBox::OnBkBtnClose()
{
EndDialog(IDCANCEL);
}
void CColorMsgBox::CalcRect(CRect &rc1)
{
int nHeight = m_lstMsg.size() * 18;;
int nWidth = 418;
CWindowDC dc(::GetDesktopWindow());
CRect rcText(0, 0, 1000, 1000);
const BkStyle& textStyle = BkStyle::GetStyle("msgtext");
dc.SelectFont(textStyle.m_ftText);
list<LISTITEM> ::iterator pos;
for (pos = m_lstMsg.begin(); pos != m_lstMsg.end(); ++pos)
{
LISTITEM item = (*pos);
dc.DrawText(item.strText, item.strText.GetLength(), rcText, textStyle.m_nTextAlign | DT_CALCRECT);
if (nWidth < rcText.Width())
nWidth = rcText.Width();
}
rc1.left = 0;
rc1.top = 0;
rc1.right = nWidth+10;
rc1.bottom = nHeight+135;
}
6.用法
CColorMsgBox clrMsg;
clrMsg.AppendMsg(enBlue,strMsg);
...
clrMsg.ShowMsg();