cosmo.cpp

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UINT CCosmoFrame::CreateToolbar(void)
    {
    UINT            iLast;
    UINT            uState=GIZMO_NORMAL;
    UINT            utCmd =GIZMOTYPE_BUTTONCOMMAND;
    UINT            utEx  =GIZMOTYPE_BUTTONATTRIBUTEEX;

    //Insert the standard ones.
    iLast=CFrame::CreateToolbar();

    /*
     * Insert File Import in the 5th position and account for
     * it in iLast.
     */
    m_pTB->Add(utCmd, 4, IDM_FILEIMPORT, m_dxB, m_dyB
        , NULL, m_hBmp, 2, uState);
    iLast++;

    //Separator
    m_pTB->Add(GIZMOTYPE_SEPARATOR, iLast++, 0, 6, m_dyB
        , NULL, NULL, 0, uState);

    /*
     * For the Background bitmap, preserve our use of black
     * (part of the image)
     */
    m_pTB->Add(utCmd, iLast++, IDM_COLORBACKGROUND, m_dxB, m_dyB
        , NULL, m_hBmp, 3, GIZMO_NORMAL | PRESERVE_BLACK);

    m_pTB->Add(utCmd, iLast++, IDM_COLORLINE, m_dxB, m_dyB
        , NULL, m_hBmp, 4, uState);

    //Separator
    m_pTB->Add(GIZMOTYPE_SEPARATOR, iLast++, 0, 6, m_dyB
        , NULL, NULL, 0, uState);

    //Line styles.
    m_pTB->Add(utEx, iLast++, IDM_LINESOLID, m_dxB, m_dyB
        , NULL, m_hBmp, 5, uState);
    m_pTB->Add(utEx, iLast++, IDM_LINEDASH, m_dxB, m_dyB
        , NULL, m_hBmp, 6, uState);
    m_pTB->Add(utEx, iLast++, IDM_LINEDOT, m_dxB, m_dyB
        , NULL, m_hBmp, 7, uState);
    m_pTB->Add(utEx, iLast++, IDM_LINEDASHDOT, m_dxB, m_dyB
        , NULL, m_hBmp, 8, uState);
    m_pTB->Add(utEx, iLast++, IDM_LINEDASHDOTDOT, m_dxB, m_dyB
        , NULL, m_hBmp, 9, uState);

    return iLast;
    }








/*
 * CCosmoFrame::OnCommand
 *
 * Purpose:
 *  WM_COMMAND handler for the Cosmo frame window that just
 *  processes the line menu and the color menu leaving the
 *  CFrame to do everything else.
 *
 * Parameters:
 *  hWnd            HWND of the frame window.
 *  wParam          WPARAM of the message.
 *  lParam          LPARAM of the message.
 *
 * Return Value:
 *  LRESULT         Return value for the message.
 */

LRESULT CCosmoFrame::OnCommand(HWND hWnd, WPARAM wParam
    , LPARAM lParam)
    {
    PCCosmoDoc      pDoc;
    TCHAR           szFile[CCHPATHMAX];
    BOOL            fOK;
    UINT            i, uTemp;
    COLORREF        rgColors[16];
    CHOOSECOLOR     cc;

    COMMANDPARAMS(wID, wCode, hWndMsg);

    /*
     * Don't bother with anything during first initialization,
     * skipping many toolbar notifications.
     */
    if (m_fInit)
        return 0L;

    pDoc=(PCCosmoDoc)m_pCL->ActiveDocument();

    /*
     * Check for the line style commands which are
     * IDM_LINEMIN+<style>.  We handle this by changing the menu
     * and toolbar, then we pass it to the document for real
     * processing.
     */
    if (NULL!=pDoc && IDM_LINEMIN <= wID && IDM_LINEMAX >=wID)
        {
        CheckLineSelection(wID);
        pDoc->LineStyleSet(wID-IDM_LINEMIN);
        return 0L;
        }

    switch (wID)
        {
        case IDM_FILEIMPORT:
            szFile[0]=0;
            fOK=SaveOpenDialog(szFile, CCHPATHMAX, IDS_FILEIMPORT
                , TRUE, &i);

            if (fOK)
                {
                uTemp=pDoc->Load(FALSE, szFile);
                pDoc->ErrorMessage(uTemp);
                }

            return (LRESULT)fOK;


        case IDM_COLORBACKGROUND:
        case IDM_COLORLINE:
            //Invoke the color chooser for either color
            uTemp=(IDM_COLORBACKGROUND==wID)
                ? DOCCOLOR_BACKGROUND : DOCCOLOR_LINE;

            for (i=0; i<16; i++)
                rgColors[i]=RGB(0, 0, i*16);

            memset(&cc, 0, sizeof(CHOOSECOLOR));
            cc.lStructSize=sizeof(CHOOSECOLOR);
            cc.lpCustColors=rgColors;
            cc.hwndOwner=hWnd;
            cc.Flags=CC_RGBINIT;
            cc.rgbResult=pDoc->ColorGet(uTemp);

            if (ChooseColor(&cc))
                pDoc->ColorSet(uTemp, cc.rgbResult);

            break;


        default:
           CFrame::OnCommand(hWnd, wParam, lParam);
        }

    return 0L;
    }






/*
 * CCosmoFrame::OnDocumentDataChange
 *
 * Purpose:
 *  Update the Line menu and toolbar if the style in the data
 *  changes.
 *
 * Parameters:
 *  pDoc            PCDocument notifying the sink.
 *
 * Return Value:
 *  None
 */

void CCosmoFrame::OnDocumentDataChange(PCDocument pDoc)
    {
    CheckLineSelection(IDM_LINEMIN
        +((PCCosmoDoc)pDoc)->LineStyleGet());
    return;
    }




/*
 * CCosmoFrame::OnDocumentActivate
 *
 * Purpose:
 *  Informs us that document activation changed, so update the UI
 *  for that new document.
 *
 * Parameters:
 *  pDoc            PCDocument notifying the sink.
 *
 * Return Value:
 *  None
 */

void CCosmoFrame::OnDocumentActivate(PCDocument pDoc)
    {
    CheckLineSelection(IDM_LINEMIN
        +((PCCosmoDoc)pDoc)->LineStyleGet());
    return;
    }







/*
 * CCosmoFrame::UpdateMenus
 *
 * Purpose:
 *  Handles the WM_INITMENU message for the frame window.  Depending
 *  on the existence of an active window, menu items are selectively
 *  enabled and disabled.
 *
 * Parameters:
 *  hMenu           HMENU of the menu to intialize
 *  iMenu           UINT position of the menu.
 *
 * Return Value:
 *  None
 */

void CCosmoFrame::UpdateMenus(HMENU hMenu, UINT iMenu)
    {
    PCDocument  pDoc;
    BOOL        fOK=FALSE;
    BOOL        fCallDefault=TRUE;
    UINT        i;
    UINT        uTemp;
    UINT        uTempE;
    UINT        uTempD;

    pDoc=m_pCL->ActiveDocument();

    uTempE=MF_ENABLED | MF_BYCOMMAND;
    uTempD=MF_DISABLED | MF_GRAYED | MF_BYCOMMAND;
    uTemp=((NULL!=pDoc) ? uTempE : uTempD);

    //File menu:  If there is document window, disable Import.
    if (m_phMenu[0]==hMenu)
        EnableMenuItem(hMenu, IDM_FILEIMPORT, uTemp);

    //Color menu:  no document, no commands
    if (m_phMenu[2]==hMenu)
        {
        EnableMenuItem(hMenu, IDM_COLORBACKGROUND, uTemp);
        EnableMenuItem(hMenu, IDM_COLORLINE,       uTemp);
        fCallDefault=FALSE;
        }

    //Line menu:  no document, no commands
    if (m_phMenu[3]==hMenu)
        {
        for (i=IDM_LINEMIN; i<=IDM_LINEMAX; i++)
            EnableMenuItem(hMenu, i, uTemp);

        fCallDefault=FALSE;
        }

    if (fCallDefault)
        CFrame::UpdateMenus(hMenu, iMenu);

    return;
    }






/*
 * CCosmoFrame::UpdateToolbar
 *
 * Purpose:
 *  Enables and disables tools depending on whether we have
 *  a document or not.
 *
 * Parameters:
 *  None
 *
 * Return Value:
 *  None
 */

void CCosmoFrame::UpdateToolbar(void)
    {
    BOOL        fLast;
    UINT        i;

    //Save the last enabled state before CFrame changes it
    fLast=m_fLastEnable;

    //Let the default hack on its tools
    CFrame::UpdateToolbar();

    /*
     * If CFrame::UpdateToolbar changed anything, then we need
     * to change as well--if nothing changes, nothing to do.
     */
    if (fLast!=m_fLastEnable)
        {
        m_pTB->Enable(IDM_FILEIMPORT, m_fLastEnable);

        m_pTB->Enable(IDM_COLORBACKGROUND, m_fLastEnable);
        m_pTB->Enable(IDM_COLORLINE,       m_fLastEnable);

        for (i=IDM_LINEMIN; i <= IDM_LINEMAX; i++)
            m_pTB->Enable(i, m_fLastEnable);
        }

    return;
    }






/*
 * CCosmoFrame::CheckLineSelection
 *
 * Purpose:
 *  Maintains the bitmap menu and the tools for the line selection.
 *  Both are mutially exclusive option lists where a selection in
 *  one has to affect the other.
 *
 * Parameters:
 *  uID             UINT ID of the item to be selected
 *
 * Return Value:
 *  None
 */

void CCosmoFrame::CheckLineSelection(UINT uID)
    {
    UINT        i;
    HMENU       hMenu;

    //Update menus and tools if the selection changed.
    if (uID!=m_uIDCurLine)
        {
        m_uIDCurLine=uID;
        hMenu=GetMenu(m_hWnd);

        //Uncheck all lines initially.
        for (i=IDM_LINEMIN; i<=IDM_LINEMAX; i++)
            CheckMenuItem(hMenu, i, MF_UNCHECKED | MF_BYCOMMAND);

        CheckMenuItem(hMenu, uID, MF_CHECKED | MF_BYCOMMAND);
        m_pTB->Check(uID, TRUE);
        }

    return;
    }



//CHAPTER18MOD
/*
 * CCosmoFrame::UpdateEmbeddingUI
 *
 * Purpose:
 *  Puts the application into the user interface for editing an
 *  embedded object, manipulating menus and title bars.
 *
 * Parameters:
 *  fEmbedding      BOOL TRUE to go in the mode, FALSE to leave it.
 *  pszApp          LPCTSTR name of the container application as
 *                  received in IOleObject::SetHostNames.
 *  pszObj          LPCTSTR name of the object in the container as
 *                  received in IOleObject::SetHostNames.
 *
 * Return Value:
 *  None
 */

void CCosmoFrame::UpdateEmbeddingUI(BOOL fEmbedding
    , PCDocument pDoc, LPCTSTR pszApp, LPCTSTR pszObj)
    {
    HMENU           hMenu;
    TCHAR           szTemp[256];

    //First let's play with the File menu.
    hMenu=m_phMenu[0];

    //Remove or add the File New, Open, and Save items
    if (fEmbedding)
        {
        DeleteMenu(m_phMenu[0], IDM_FILENEW,   MF_BYCOMMAND);
        DeleteMenu(m_phMenu[0], IDM_FILEOPEN,  MF_BYCOMMAND);
        DeleteMenu(m_phMenu[0], IDM_FILECLOSE, MF_BYCOMMAND);
        DeleteMenu(m_phMenu[0], IDM_FILESAVE,  MF_BYCOMMAND);

        //Save As->Save Copy As
        ModifyMenu(m_phMenu[0], IDM_FILESAVEAS, MF_BYCOMMAND
            , IDM_FILESAVEAS, PSZ(IDS_SAVECOPYAS));
        }
    else
        {
        InsertMenu(m_phMenu[0], 0, MF_BYPOSITION, IDM_FILENEW
            , PSZ(IDS_NEW));
        InsertMenu(m_phMenu[0], 1, MF_BYPOSITION, IDM_FILEOPEN
            , PSZ(IDS_OPEN));
        InsertMenu(m_phMenu[0], 2, MF_BYPOSITION, IDM_FILESAVE
            , PSZ(IDS_SAVE));
        InsertMenu(m_phMenu[0], 3, MF_BYPOSITION, IDM_FILECLOSE
            , PSZ(IDS_SAVE));

        //Save Copy As->Save As
        ModifyMenu(m_phMenu[0], IDM_FILESAVEAS, MF_BYCOMMAND
            , IDM_FILESAVEAS, PSZ(IDS_SAVEAS));
        }

    //Change "Exit" to "Exit & Return to xx" or vice-versa for SDI
    if (fEmbedding)
        wsprintf(szTemp, PSZ(IDS_EXITANDRETURN), (LPSTR)pszObj);
    else
        lstrcpy(szTemp, PSZ(IDS_EXIT));

    ModifyMenu(m_phMenu[0], IDM_FILEEXIT, MF_STRING, IDM_FILEEXIT
        , szTemp);
    DrawMenuBar(m_hWnd);

    //Now let's play with the toolbar.
    m_pTB->Show(IDM_FILENEW,   !fEmbedding);
    m_pTB->Show(IDM_FILEOPEN,  !fEmbedding);
    m_pTB->Show(IDM_FILECLOSE, !fEmbedding);
    m_pTB->Show(IDM_FILESAVE,  !fEmbedding);

    //Enable what's left appropriately.
    UpdateToolbar();

    //Now play with the title bar.

    //IDS_EMBEDDINGCAPTION is MDI/SDI sensitive in COSMO.RC.
    wsprintf(szTemp, PSZ(IDS_EMBEDDINGCAPTION), pszObj);

    /*
     * Remember that in MDI situations that Windows takes care of
     * the frame window caption bar when the document is maximized.
     */
   #ifdef MDI
    SetWindowText(pDoc->Window(), szTemp);
   #else
    SetWindowText(m_hWnd, szTemp);
   #endif

    return;
    }
//End CHAPTER18MOD