newtoolbar.c

有了操作系统、TCP/IP协议栈、文件系统

    }

end:
    ReleaseDC (hdc);

    new_item->next = NULL;
    if (ntb_data->tail == NULL) {
        ntb_data->head = ntb_data->tail = new_item;
    }
    else {
        ntb_data->tail->next = new_item;
        ntb_data->tail = new_item;
    }
    ntb_data->nr_items++;
}

static void recalc_items (HWND hwnd, NTBCTRLDATA* ntb_data)
{
    HDC hdc;
    PNTBITEM item, prev = NULL;

    hdc = GetClientDC (hwnd);

    item = ntb_data->head;

    if(!( ntb_data->style & NTBS_VERTICAL ))
    {
        while (item) {
           //horizontal
            
            if (prev == NULL )
            {
                item->rc_item.top = MARGIN_VERT;
                item->rc_item.left = MARGIN_HORZ;
            }
            else if ( (item->flags & NTBIF_TYPEMASK ) == NTBIF_NEWLINE )
            {
                item->rc_item.top =  prev->rc_item.bottom + GAP_ITEM_ITEM_VERT;
                item->rc_item.left = MARGIN_HORZ;
                item->rc_item.bottom = item->rc_item.top;
                item->rc_item.right = item->rc_item.left;
                goto  end;
            }
            else
            {
                if ( (prev->flags & NTBIF_TYPEMASK) == NTBIF_NEWLINE )
                    item->rc_item.left = MARGIN_HORZ;
                else
                    item->rc_item.left = prev->rc_item.right + GAP_ITEM_ITEM_HORZ;
                item->rc_item.top =  prev->rc_item.top;
            }


            switch (item->flags & NTBIF_TYPEMASK) {
            case NTBIF_PUSHBUTTON:
            case NTBIF_CHECKBUTTON:
            case NTBIF_HOTSPOTBUTTON:
            if (ntb_data->style & NTBS_WITHTEXT) {
                if (ntb_data->style & NTBS_TEXTRIGHT) {

                    SIZE sz_text;
                    GetTextExtent (hdc, item->text, -1, &sz_text);

                    item->rc_item.bottom 
                            = item->rc_item.top + ntb_data->h_cell + 1;

                    item->rc_text.left = item->rc_item.left + ntb_data->w_cell + GAP_BMP_TEXT_HORZ + 1;
                    item->rc_text.right = item->rc_text.left + sz_text.cx;
                    item->rc_text.top = item->rc_item.top;
                    item->rc_text.bottom = item->rc_item.bottom;

                    item->rc_item.right = item->rc_text.right + GAP_BMP_TEXT_HORZ + 1;
                }
                else {
                    item->rc_item.right = item->rc_item.left + ntb_data->w_cell + 1;

                    item->rc_text.left = item->rc_item.left;
                    item->rc_text.right = item->rc_item.right;
                    item->rc_text.top 
                            = item->rc_item.top + ntb_data->h_cell + GAP_BMP_TEXT_VERT;
                    item->rc_text.bottom = item->rc_text.top + GetFontHeight (hdc);

                    item->rc_item.bottom = item->rc_text.bottom + 1;
                }
            }
            else {
                item->rc_item.right = item->rc_item.left + ntb_data->w_cell + 1;
                item->rc_item.bottom = item->rc_item.top + ntb_data->h_cell + 1;
            }
            break;
                        
            case NTBIF_SEPARATOR:
            default:
                if (ntb_data->style & NTBS_DRAWSEPARATOR)
                    item->rc_item.right = item->rc_item.left + WIDTH_SEPARATOR;
                else
                    item->rc_item.right = item->rc_item.left + WIDTH_SEPARATOR * 2;
                item->rc_item.bottom = item->rc_item.top + ntb_data->h_cell;
                break;
            }

            prev = item;
            item = item->next;
        }
    }
    else
    {
     //vertical
        while (item) {
            if (prev == NULL )
            {
                item->rc_item.top = MARGIN_V_VERT;
                item->rc_item.left = MARGIN_V_HORZ;
            }
            else if ( (item->flags & NTBIF_TYPEMASK ) == NTBIF_NEWLINE )
            {
                item->rc_item.left = prev->rc_item.right + GAP_ITEM_ITEM_HORZ;
                item->rc_item.top = MARGIN_V_VERT;
                item->rc_item.bottom = item->rc_item.top;
                item->rc_item.right = item->rc_item.left;
                goto  end;
            }
            else
            {
                if ( (prev->flags & NTBIF_TYPEMASK) == NTBIF_NEWLINE )
                    item->rc_item.top = MARGIN_V_VERT; 
                else
                    item->rc_item.top = prev->rc_item.bottom + GAP_ITEM_ITEM_VERT;
                item->rc_item.left = prev->rc_item.left;
            }

            switch (item->flags & NTBIF_TYPEMASK) {
            case NTBIF_PUSHBUTTON:
            case NTBIF_CHECKBUTTON:
            case NTBIF_HOTSPOTBUTTON:
            if (ntb_data->style & NTBS_WITHTEXT) {
                if (ntb_data->style & NTBS_TEXTRIGHT) {

                    SIZE sz_text;
                    GetTextExtent (hdc, item->text, -1, &sz_text);

                    item->rc_item.bottom 
                            = item->rc_item.top + ntb_data->h_cell + 1;

                    item->rc_text.left = item->rc_item.left + ntb_data->w_cell + GAP_BMP_TEXT_HORZ + 1;
                    item->rc_text.right = item->rc_text.left + sz_text.cx;
                    item->rc_text.top = item->rc_item.top;
                    item->rc_text.bottom = item->rc_item.bottom;

                    item->rc_item.right = item->rc_text.right + GAP_BMP_TEXT_HORZ + 1;
                }
                else {
                    item->rc_item.right = item->rc_item.left + ntb_data->w_cell + 1;

                    item->rc_text.left = item->rc_item.left;
                    item->rc_text.right = item->rc_item.right;
                    item->rc_text.top 
                            = item->rc_item.top + ntb_data->h_cell + GAP_BMP_TEXT_VERT;
                    item->rc_text.bottom = item->rc_text.top + GetFontHeight (hdc);

                    item->rc_item.bottom = item->rc_text.bottom + 1;
                }
            }
            else {
                item->rc_item.right = item->rc_item.left + ntb_data->w_cell + 1;
                item->rc_item.bottom = item->rc_item.top + ntb_data->h_cell + 1;
            }
            break;
                        
            case NTBIF_SEPARATOR:
            default:
                if (ntb_data->style & NTBS_DRAWSEPARATOR)
                    item->rc_item.bottom = item->rc_item.top + WIDTH_SEPARATOR;
                else
                    item->rc_item.bottom = item->rc_item.top + WIDTH_SEPARATOR * 2;
                item->rc_item.right = item->rc_item.left + ntb_data->w_cell;
                break;
            }

            prev = item;
            item = item->next;
        }
    }
end:

    ReleaseDC (hdc);
}

/*===========================================================================*/
static int NewToolbarCtrlProc (HWND hwnd, int message, WPARAM wParam, LPARAM lParam)
{
    PCONTROL myself;
    PNTBCTRLDATA ntb_data;

    myself   = Control (hwnd);
    ntb_data = (PNTBCTRLDATA) myself->dwAddData2;

    switch (message) {
        case MSG_CREATE:
        {
            NTBINFO* data = (NTBINFO*)myself->dwAddData;

            ntb_data = (NTBCTRLDATA*) calloc (1, sizeof (NTBCTRLDATA));
            if (ntb_data == NULL)
                        return -1;

            ntb_data->head = NULL;
            ntb_data->style = myself->dwStyle;

            ntb_data->image = data->image;
            ntb_data->nr_cells = data->nr_cells;
            ntb_data->nr_cols = data->nr_cols;
            if (data->nr_cols == 0)
                ntb_data->nr_cols = 4;

            ntb_data->w_cell = data->w_cell;
            if (data->w_cell == 0)
                ntb_data->w_cell = data->image->bmWidth / ntb_data->nr_cols;

            ntb_data->h_cell = data->h_cell;
            if (data->h_cell == 0)
                ntb_data->h_cell = data->image->bmHeight / ntb_data->nr_cells;

            ntb_data->nr_items = 0;
            ntb_data->sel_item = NULL;

            myself->dwAddData2 = (DWORD)ntb_data;
            break;
        }

        case MSG_DESTROY:
        {
            NTBITEM *item, *tmp;

            item = ntb_data->head;
            while (item) {
                tmp = item->next;
                free (item);
                item = tmp;
             }

            free (ntb_data);
            break;
        }

        case MSG_FONTCHANGED:
        {
            RECT rc;

            recalc_items (hwnd, ntb_data);

            GetWindowRect (hwnd, &rc);
            MoveWindow (hwnd, rc.left, rc.top, RECTW(rc), RECTH(rc), TRUE);
            break;
        }

        case MSG_NCPAINT:
            return 0;

        case MSG_SIZECHANGING:
        {
            const RECT* rcExpect = (const RECT*)wParam;
            RECT* rcResult = (RECT*)lParam;


            if ( ! (ntb_data->style & NTBS_VERTICAL ) )
            {
               // as  horizontal
                rcResult->left = rcExpect->left;
                rcResult->top = rcExpect->top;
                rcResult->right = rcExpect->right;
                if (ntb_data->style & NTBS_MULTLINE )
                {
                    rcResult->bottom = rcExpect->bottom;
                }
                else if (ntb_data->style & NTBS_WITHTEXT) {
                    rcResult->bottom = rcExpect->top + ntb_data->h_cell + MARGIN_VERT * 2;
                    if (!(ntb_data->style & NTBS_TEXTRIGHT))
                        rcResult->bottom += GetWindowFont (hwnd)->size + GAP_BMP_TEXT_VERT;
                }
                else
                    rcResult->bottom = rcExpect->top + ntb_data->h_cell + MARGIN_VERT * 2;
            }
            else 
            {
                // as vertical ;
                rcResult->left = rcExpect->left;
                rcResult->top = rcExpect->top;
                rcResult->bottom = rcExpect->bottom;
                if (ntb_data->style & NTBS_WITHTEXT || ntb_data->style & NTBS_MULTLINE )  {
                    rcResult->right = rcExpect->right;
                }
                else
                    rcResult->right = rcExpect->left + ntb_data->w_cell + MARGIN_V_HORZ * 2;
            }

            return 0;
        }

        case NTBM_ADDITEM:
        {
            NTBITEMINFO* item_info = NULL;
            NTBITEM* new_item;

            item_info = (NTBITEMINFO*) lParam;

            if (!(new_item = (NTBITEM*)calloc (1, sizeof (NTBITEM))))
                return NTB_ERR;

            new_item->flags = item_info->flags;
            new_item->id = item_info->id;
            new_item->bmp_cell = item_info->bmp_cell;

            if (item_info->text)
                strncpy (new_item->text, item_info->text, NTB_TEXT_LEN);
            else
                new_item->text [0] = '\0';

            if (item_info->tip)
                strncpy (new_item->tip, item_info->tip, NTB_TIP_LEN);
            else
                new_item->tip [0] = '\0';

            new_item->rc_hotspot = item_info->rc_hotspot;
            new_item->hotspot_proc = item_info->hotspot_proc;

            new_item->add_data = item_info->add_data;

            append_new_item (hwnd, ntb_data, new_item);
            InvalidateRect (hwnd, &new_item->rc_item, TRUE);
            return 0;
        }
        break;

        case NTBM_GETITEM:
        {
            int id = wParam;
            PNTBITEMINFO item_info = (PNTBITEMINFO) lParam;
            NTBITEM* item = NULL;

            if (!item_info)
                return NTB_ERR;

            item = ntb_data->head;

            while (item) {
                if (id == item->id) {
                    if (item_info->which & MTB_WHICH_FLAGS)
                        item_info->flags = item->flags;

                    if (item_info->which & MTB_WHICH_ID)
                        item_info->id = item->id;