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//####COPYRIGHTBEGIN####

//                                                                          

// ----------------------------------------------------------------------------

// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.

//

// This program is part of the eCos host tools.

//

// This program is free software; you can redistribute it and/or modify it 

// under the terms of the GNU General Public License as published by the Free 

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// any later version.

// 

// This program is distributed in the hope that it will be useful, but WITHOUT 

// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 

// more details.

// 

// You should have received a copy of the GNU General Public License along with

// this program; if not, write to the Free Software Foundation, Inc., 

// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

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//                                                                          

//####COPYRIGHTEND####

// MessageBox.cpp : implementation file

//

//

//===========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   sdf

// Contact(s):  sdf

// Date:                1998/10/06

// Version:             0.01

// Purpose:     

// Description: This is the implementation of the messagebox class

// Requires:    

// Provides:    

// See also:    

// Known bugs:  

// Usage:       

//

//####DESCRIPTIONEND####

//

//===========================================================================

//

#include "stdafx.h"

#include "MessageBox.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

/////////////////////////////////////////////////////////////////////////////

// CMessageBox dialog

// Must be global because InitModalIndirect saves the pointer

CMessageBox::DLGDATA CMessageBox::DlgData = {

        {       DS_MODALFRAME | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU,

                0,                 // No controls yet

                0,0,0,0}, // Fix up size and position later

                0,0,0};   // Default menu, class and title

void CMessageBox::Init()

{

        m_pFont=CFont::FromHandle(HFONT(GetStockObject(DEFAULT_GUI_FONT)));

        m_nFocusButton=-1;

        m_nEscapeButton=-1;

        m_nJustify=SS_LEFT;

        m_nDefaultButton=0;

        m_hIcon=NULL;

        m_pStaticText=NULL;

        m_pStaticIcon=NULL;

        m_bTopMost=false;

        m_bModeless=false;

        m_bDialogCreated=false;

        m_pParentNotify=NULL;

        m_crText=GetSysColor(COLOR_BTNTEXT);

        InitModalIndirect (&DlgData.tmpl,NULL);

}

CMessageBox::CMessageBox()

        : CDialog()

{

        Init();

        m_strCaption=_T("Error");

}

CMessageBox::CMessageBox(const CString &strText,const CString &strCaption/*=_T("Error")*/,UINT Flag/*=MB_OK*/)

        : CDialog()

{

        Init();

        m_strText=strText;

        m_strCaption=strCaption;

        m_nDefaultButton=((Flag&MB_DEFMASK)>>8);

        m_bTopMost=(0!=(Flag&MB_SYSTEMMODAL));

        // Use flag to select from amongst standard combinations and

        // to select icon.

        switch(Flag&MB_TYPEMASK){

                case MB_OK:

                        AddButton(_T("OK"),IDOK);

                        break;

                case MB_OKCANCEL:

                        AddButton(_T("OK"),IDOK);

                        AddButton(_T("Cancel"),IDCANCEL);

                        break;

                case MB_ABORTRETRYIGNORE:

                        AddButton(_T("&Abort"),IDABORT);

                        AddButton(_T("&Retry"),IDRETRY);

                        AddButton(_T("&Ignore"),IDIGNORE);

                        break;

                case MB_YESNOCANCEL:

                        AddButton(_T("&Yes"),IDYES);

                        AddButton(_T("&No"),IDNO);

                        AddButton(_T("Cancel"),IDCANCEL);

                        break;

                case MB_YESNO:

                        AddButton(_T("&Yes"),IDYES);

                        AddButton(_T("&No"),IDNO);

                        break;

                case MB_RETRYCANCEL:

                        AddButton(_T("&Retry"),IDRETRY);

                        AddButton(_T("Cancel"),IDCANCEL);

                        break;

                case MB_YESNOALL: //13

                        AddButton(_T("&Yes"),IDYES);

                        AddButton(_T("&No"),IDNO);

                        AddButton(_T("Yes &All"),IDYESALL);

                        AddButton(_T("No A&ll"),IDNOALL);

                        break;

                case MB_YESNOALLCANCEL: //14

                        AddButton(_T("&Yes"),IDYES);

                        AddButton(_T("&No"),IDNO);

                        AddButton(_T("Yes &All"),IDYESALL);

                        AddButton(_T("No A&ll"),IDNOALL);

                        AddButton(_T("Cancel"),IDCANCEL);

                        break;

                default:

                        ASSERT(FALSE);

        }

        if(Flag&MB_HELP){

                AddButton(_T("&Help"),IDHELP);

        }

        switch(Flag&MB_ICONMASK){

                case MB_ICONHAND:

                        m_hIcon=AfxGetApp()->LoadStandardIcon(IDI_HAND);

                        break;

                case MB_ICONQUESTION:

                        m_hIcon=AfxGetApp()->LoadStandardIcon(IDI_QUESTION);

                        break;

                case MB_ICONEXCLAMATION:

                        m_hIcon=AfxGetApp()->LoadStandardIcon(IDI_EXCLAMATION);

                        break;

                case MB_ICONASTERISK:

                        m_hIcon=AfxGetApp()->LoadStandardIcon(IDI_ASTERISK);

                        break;

                case 0:

                        break;

                default:

                        ASSERT(FALSE);

                        break;

        }

}

BEGIN_MESSAGE_MAP(CMessageBox, CDialog)

        //{{AFX_MSG_MAP(CMessageBox)

        ON_WM_FONTCHANGE()

        ON_WM_CTLCOLOR()

        ON_WM_CLOSE()

        //}}AFX_MSG_MAP

        ON_CONTROL_RANGE(BN_CLICKED, 1, 0xFFFF, OnButton)

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CMessageBox message handlers

BOOL CMessageBox::OnInitDialog()

{

        // Create buttons as required

        ASSERT(ButtonCount()>0);

        SetWindowText(m_strCaption);

        if(-1==m_nEscapeButton||IDCANCEL!=m_arBInfo[m_nEscapeButton].m_id){

                // No cancel button

                CMenu *pMenu=GetSystemMenu(FALSE);

                pMenu->RemoveMenu(SC_CLOSE,MF_BYCOMMAND);

        }

        CDialog::OnInitDialog();

        CDC *pDC=GetDC();

        CFont *pOldFont=pDC->SelectObject(m_pFont);

        TEXTMETRIC tm;

        pDC->GetTextMetrics(&tm);

        int cxDLU=tm.tmAveCharWidth;

        int cyDLU=tm.tmHeight;

        int nButtonWidth= (60*cxDLU)/4;         // width of a button

        int nButtonHeight=(14*cyDLU)/8;         // height of a button

        int cxButtonSep=   (4*cxDLU)/4;         // horizontal button separation

        int cxTextButtonSep=(10*cxDLU)/4;       // horizontal separation between text and icon

        int cyTextButtonSep=(10*cyDLU)/8;       // vertical separation between text and buttons

        int cxBorder=   (7*cxDLU)/4;            // horizontal separation between buttons and border

        int cyBorder=   (7*cyDLU)/8;            // vertical separation between buttons and border

        int cxIcon=GetSystemMetrics(SM_CXICON); // width of an icon

        int cyIcon=GetSystemMetrics(SM_CYICON); // height of an icon

        int nTotalButtonWidth=(ButtonCount()*nButtonWidth)+(ButtonCount()-1)*cxButtonSep;

        int cxText=max(50,nTotalButtonWidth-(m_hIcon?(cxIcon+cxTextButtonSep):0));

        int cyText=0;

        // Size the text control according to the maximum line length

        LPCTSTR c=m_strText;

        while(*c){

                PTCHAR d=_tcsstr(c,_T("\r\n"));

                int nCount;

                if(d){

                        *d=_TCHAR('\0');

                        nCount=d-c;

                } else {\

                        nCount=_tcslen(c);

                }

                cxText=max(cxText,pDC->GetTextExtent(c,nCount).cx);

                cyText+=tm.tmHeight;

                if(d){

                        *d=_TCHAR('\r');

                        c=d+2;

                } else {

                        break;

                }

        }

        // If vertical extent of text is less than that of the icon, difference between the two

        int cyTextExtra= (m_hIcon && cyText<cyIcon)?cyIcon-cyText:0;

        pDC->SelectObject(pOldFont);

        ReleaseDC(pDC);

        // Set dialog box size

        {

                int cx=(2*cxBorder)+cxText+cxButtonSep+2*GetSystemMetrics(SM_CXDLGFRAME);

                if(m_hIcon){

                        cx+=cxIcon+cxTextButtonSep;

                }

                int cy=(2*cyBorder)+cyText+cyTextExtra+cyTextButtonSep+nButtonHeight+

                        GetSystemMetrics(SM_CYCAPTION)+2*GetSystemMetrics(SM_CYDLGFRAME);

                UINT flags=SWP_NOMOVE;

                if(!m_bTopMost){

                        flags|=SWP_NOZORDER;

                }

                SetWindowPos(&wndTopMost,0,0,cx,cy,flags);

        }

        // Create a static control for the icon

        if(m_hIcon){

                m_pStaticIcon=new CStatic;

                m_pStaticIcon->Create(NULL,WS_CHILD|WS_VISIBLE|SS_ICON,

                        CRect(cxBorder,cyBorder,cxBorder+cxIcon,cyBorder+cyIcon), this);

                m_pStaticIcon->SetIcon(m_hIcon);

        }

        // Create a static control for the text

        {

                int cx=m_hIcon?cxIcon+cxTextButtonSep:0;

                m_pStaticText=new CStatic;

                m_pStaticText->Create(m_strText,WS_CHILD|WS_VISIBLE|m_nJustify|SS_NOPREFIX,

                        CRect(cxBorder+cx,cyBorder+cyTextExtra/2,cxBorder+cx+cxText,cyBorder+cyText+cyTextExtra/2), this);

                m_pStaticText->SetFont(m_pFont);

        }

        // Create the buttons

        CRect rcClient;

        GetClientRect(rcClient);

        CRect rect;

        rect.left=(rcClient.Width()-nTotalButtonWidth)/2;

        rect.right=rect.left+nButtonWidth;

        rect.bottom=rcClient.bottom-cyBorder;

        rect.top=rect.bottom-nButtonHeight;

        ASSERT(m_nDefaultButton<ButtonCount());

        for(unsigned i=0;i<ButtonCount();i++){

                CButton *pWnd=new CButton;

                m_arBInfo[i].m_pWnd=pWnd;

                UINT id=m_arBInfo[i].m_id;

                UINT style=WS_CHILD|WS_VISIBLE|WS_TABSTOP;

                if(!m_arBInfo[i].m_bEnabled){

                        style|=WS_DISABLED;

                }

                if(0==i){

                        style|=WS_GROUP;

                }

                style|=(m_nDefaultButton==i)?BS_DEFPUSHBUTTON:BS_PUSHBUTTON;

                pWnd->Create(m_arBInfo[i].m_strCaption,style,rect,this,id);

                pWnd->SetFont(m_pFont);

                if(m_nDefaultButton==i){

                        pWnd->SetFocus();

                }

                rect.left+=nButtonWidth+cxButtonSep;

                rect.right+=nButtonWidth+cxButtonSep;

        }

        m_nFocusButton=m_nDefaultButton;

        m_bDialogCreated=true;

        return FALSE;

}

void CMessageBox::OnButton(UINT id)

{

        if(-1!=IndexOf(id)){

                if(m_bModeless){

                        if(NULL!=m_pParentNotify){

                                m_pParentNotify->PostMessage(m_nParentNotifcationMessage,MAKEWPARAM(id,m_nParentNotifcationwParamHigh),0);

                                DestroyWindow();

                        }

                } else {

                        EndDialog(id);

                }

        }

}

BOOL CMessageBox::PreTranslateMessage(MSG* pMsg)

{

        if(pMsg->message==WM_KEYDOWN){

                switch(pMsg->wParam){

                        case VK_ESCAPE:

                                if(-1!=m_nEscapeButton){

                                        OnButton(m_arBInfo[m_nEscapeButton].m_id);

                                }

                                return TRUE;

                        default:

                                break;

                }

        }

    if( IsDialogMessage( pMsg ) )

                return TRUE;

        else

        return CDialog::PreTranslateMessage( pMsg );

}

void CMessageBox::AddButton(const CString & strCaption, UINT id, bool bEnabled/*=true*/)

{

#ifdef _DEBUG

        ASSERT(-1==IndexOf(id));

        for(unsigned int i=0;i<ButtonCount();i++){

                if(0==m_arBInfo[i].m_strCaption.Compare(strCaption)){

                        ASSERT(FALSE);

                }

        }

#endif

        if(bEnabled){

                if(IDCANCEL==id || (IDOK==id && -1==m_nEscapeButton)){

                        m_nEscapeButton=ButtonCount();

                }

        }

        CButtonInfo info(id,bEnabled,strCaption);

        m_arBInfo.Add(info);

}

CMessageBox::~CMessageBox()

{

        for(unsigned int i=0;i<ButtonCount();i++){

                deleteZ(m_arBInfo[i].m_pWnd);

        }

        deleteZ(m_pStaticText);

        deleteZ(m_pStaticIcon);

}

void CMessageBox::SetDefaultButton(UINT nIndex)

{

        ASSERT(nIndex<ButtonCount());

        m_nDefaultButton=nIndex;

}

void CMessageBox::OnFontChange()

{

        CDialog::OnFontChange();

        m_pFont=CFont::FromHandle(HFONT(GetStockObject(DEFAULT_GUI_FONT)));

        for(unsigned int i=0;i<ButtonCount();i++){

                Button(i).SetFont(m_pFont);

        }

        m_pStaticText->SetFont(m_pFont);

}

HBRUSH CMessageBox::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)

{

        HBRUSH hbr=CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

        switch(nCtlColor){

                case CTLCOLOR_STATIC:

                        pDC->SetTextColor(m_crText);

                        break;

                default:

                        break;

        }

        return hbr;

}

BOOL CMessageBox::Create(CWnd *pWnd,UINT msg,WORD wParamHigh)

{

        m_bModeless=true;

        if(0!=msg){

                ASSERT(NULL!=pWnd);

                m_pParentNotify=pWnd;

                m_nParentNotifcationMessage=msg;

                m_nParentNotifcationwParamHigh=wParamHigh;

        }

        return CreateIndirect (&DlgData.tmpl,pWnd);

}

int CMessageBox::IndexOf(UINT id)

{

        for(unsigned int i=0;i<ButtonCount();i++){

                if(m_arBInfo[i].m_id==id){

                        return (signed)i;

                }

        }

        return -1;

}

void CMessageBox::PostNcDestroy()

{

        if(m_bModeless){

                delete this;

        } else {

                CDialog::PostNcDestroy();

        }

}

void CMessageBox::OnClose()

{

        OnButton(IDCANCEL);

}

void CMessageBox::SetCaption (const CString &strCaption)

{

        m_strCaption=strCaption;

        if(m_bDialogCreated){

                SetWindowText(strCaption);

        }

}