diff options
Diffstat (limited to 'lib/tv/src/tv_pg_gridfcns.erl')
| -rw-r--r-- | lib/tv/src/tv_pg_gridfcns.erl | 73 |
1 files changed, 24 insertions, 49 deletions
diff --git a/lib/tv/src/tv_pg_gridfcns.erl b/lib/tv/src/tv_pg_gridfcns.erl index 809403fd96..3d23c8a69f 100644 --- a/lib/tv/src/tv_pg_gridfcns.erl +++ b/lib/tv/src/tv_pg_gridfcns.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 1997-2010. All Rights Reserved. +%% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in %% compliance with the License. You should have received a copy of the %% Erlang Public License along with this software. If not, it can be %% retrieved online at http://www.erlang.org/. -%% +%% %% Software distributed under the License is distributed on an "AS IS" %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See %% the License for the specific language governing rights and limitations %% under the License. -%% +%% %% %CopyrightEnd% -module(tv_pg_gridfcns). @@ -98,7 +98,7 @@ init_grid(GridParentId, GridWidth, nof_rows_shown = NofRowsShown }, - NewNofCols = max(length(ColsShown), NofCols), + NewNofCols = erlang:max(length(ColsShown), NofCols), % The GridColWidths list shall contain the current width of each frame. NewColWidths = update_col_widths(ColsShown, ColWidths, FirstColShown, @@ -205,8 +205,8 @@ resize_grid(NewWidth, NewHeight, ProcVars) -> check_nof_cols(ColsShown, (NofColsShown - NofCols), ColFrameIds, ColIds, RowIds, NofRows, RowHeight, FgColor, BgColor ), - clear_fields(lists:nthtail(NofColsShown, NewColIds), - lists:nthtail(NofRowsShown, NewRowIds)), + clear_fields(safe_nthtail(NofColsShown, NewColIds), + safe_nthtail(NofRowsShown, NewRowIds)), RowsToUpdate = lists:sublist(NewRowIds, NofRowsShown), @@ -270,7 +270,7 @@ resize_grid_column(RealCol, VirtualCol, Xdiff, ProcVars) -> lists_as_strings = ListAsStr} = GridP, % Get new width! - Width = min(MaxColWidth, max((lists:nth(VirtualCol, ColWidths) + Xdiff), + Width = erlang:min(MaxColWidth, erlang:max((lists:nth(VirtualCol, ColWidths) + Xdiff), MinColWidth)), % Resize the column. @@ -279,7 +279,7 @@ resize_grid_column(RealCol, VirtualCol, Xdiff, ProcVars) -> % Update the ColWidths list. TempColWidths = lists:sublist(ColWidths, VirtualCol - 1) ++ - [NewWidthOfCol | lists:nthtail(VirtualCol, ColWidths)], + [NewWidthOfCol | safe_nthtail(VirtualCol, ColWidths)], % Check the other columns, whether a new column has to be created. ColsShown = compute_cols_shown(FirstColShown, TempColWidths, GridWidth, @@ -455,8 +455,8 @@ scroll_grid_horizontally(NewFirstColShown, ProcVars) -> refresh_visible_rows(RowsToUpdate, NewFirstColShown, NofColsShown, RowDataList, ListAsStr), % Clear fields currently not visible. - clear_fields(lists:nthtail(NofColsShown, NewColIds), - lists:nthtail(NofRowsShown, NewRowIds)), + clear_fields(safe_nthtail(NofColsShown, NewColIds), + safe_nthtail(NofRowsShown, NewRowIds)), NewGridP = GridP#grid_params{nof_cols = NewNofCols, @@ -1336,7 +1336,7 @@ resize_all_grid_columns(RealCol, [ColWidth | Tail], ColFrameIds, MaxColWidth, Mi resize_one_column(RealCol, Width, ColFrameIds, MaxW, MinW) -> - NewWidthOfCol = min(MaxW, max(Width, MinW)), + NewWidthOfCol = erlang:min(MaxW, erlang:max(Width, MinW)), case length(ColFrameIds) of RealCol -> done; @@ -1565,7 +1565,7 @@ update_col_widths(ColsShown, ColWidths, FirstColShown, DefaultColWidth) -> if NecessaryNofVirtualCols > NofVirtualCols -> TailNo = NofVirtualCols - FirstColShown + 1, % Always >= 0 !!! - NewColWidths ++ lists:nthtail(TailNo, ColsShown); + NewColWidths ++ safe_nthtail(TailNo, ColsShown); true -> NewColWidths end. @@ -1653,7 +1653,7 @@ compute_cols_shown(FirstColShown, ColWidths, GridWidth, _NofCols, DefaultColWidt ColWidthsLength < FirstColShown -> []; true -> - lists:nthtail(FirstColShown - 1, ColWidths) + safe_nthtail(FirstColShown - 1, ColWidths) end, compute_cols_shown(UsedColWidths, GridWidth, DefaultColWidth). @@ -1896,44 +1896,19 @@ extract_ids_for_one_row(N, [ColIds | Tail]) -> %%%--------------------------------------------------------------------- - - - -%%====================================================================== -%% Function: -%% -%% Return Value: -%% -%% Description: -%% -%% Parameters: -%%====================================================================== - - -max(A, B) when A > B -> - A; -max(_, B) -> - B. - - - - - - - %%====================================================================== -%% Function: +%% Function: %% -%% Return Value: +%% Return Value: %% -%% Description: +%% Description: %% -%% Parameters: +%% Parameters: %%====================================================================== -min(A, B) when A < B -> - A; -min(_, B) -> - B. - +safe_nthtail(_, []) -> []; +safe_nthtail(1, [_|T]) -> T; +safe_nthtail(N, [_|T]) when N > 1 -> + safe_nthtail(N - 1, T); +safe_nthtail(0, L) when is_list(L) -> L. |