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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
%% ------------------------------------------------------------
%% Basic Label Type
%% ------------------------------------------------------------
-module(gstk_label).
%%------------------------------------------------------------------------------
%% LABEL OPTIONS
%%
%% Attributes:
%% align n,w,s,e,nw,se,ne,sw,center
%% anchor n,w,s,e,nw,se,ne,sw,center
%% bg Color
%% bw Int
%% data Data
%% fg Color
%% font Font
%% height Int
%% highlightbg Color
%% highlightbw Int
%% highlightfg Color
%% justify left|right|center
%% label {text, String} | {image, BitmapFile}
%% padx Int (Pixels)
%% pady Int (Pixels)
%% relief Relief [flat|raised|sunken|ridge|groove]
%% underline Int
%% width Int
%% wraplength Int
%% x Int
%% y Int
%%
%% Commands:
%% setfocus Bool
%%
%% Events:
%% buttonpress [Bool | {Bool, Data}]
%% buttonrelease [Bool | {Bool, Data}]
%% configure [Bool | {Bool, Data}]
%% destroy [Bool | {Bool, Data}]
%% enter [Bool | {Bool, Data}]
%% focus [Bool | {Bool, Data}]
%% keypress [Bool | {Bool, Data}]
%% keyrelease [Bool | {Bool, Data}]
%% leave [Bool | {Bool, Data}]
%% motion [Bool | {Bool, Data}]
%%
%% Read Options:
%% children
%% id
%% parent
%% type
%%
%% Not Implemented:
%% cursor ??????
%% focus ?????? (-takefocus)
%%
-export([create/3,config/3,read/3,delete/2,event/5,option/5,read_option/5]).
-include("gstk.hrl").
%%-----------------------------------------------------------------------------
%% MANDATORY INTERFACE FUNCTIONS
%%-----------------------------------------------------------------------------
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : create/3
%% Purpose : Create a widget of the type defined in this module.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
create(DB, GstkId, Opts) ->
TkW = gstk_generic:mk_tkw_child(DB,GstkId),
PlacePreCmd = [";place ", TkW],
Ngstkid = GstkId#gstkid{widget=TkW},
case gstk_generic:make_command(Opts,Ngstkid,TkW,"",PlacePreCmd,DB) of
{error,Reason} -> {error,Reason};
Cmd when is_list(Cmd) ->
gstk:exec(["label ", TkW,Cmd]),
Ngstkid
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : config/3
%% Purpose : Configure a widget of the type defined in this module.
%% Args : DB - The Database
%% Gstkid - The gstkid of the widget
%% Opts - A list of options for configuring the widget
%%
%% Return : [true | {bad_result, Reason}]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
config(DB, Gstkid, Opts) ->
TkW = Gstkid#gstkid.widget,
SimplePreCmd = [TkW, " conf"],
PlacePreCmd = [";place ", TkW],
gstk_generic:mk_cmd_and_exec(Opts,Gstkid,TkW,SimplePreCmd,PlacePreCmd,DB).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : read/3
%% Purpose : Read one option from a widget
%% Args : DB - The Database
%% Gstkid - The gstkid of the widget
%% Opt - An option to read
%%
%% Return : [OptionValue | {bad_result, Reason}]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
read(DB, Gstkid, Opt) ->
gstk_generic:read_option(DB, Gstkid, Opt).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : delete/2
%% Purpose : Delete widget from databas and return tkwidget to destroy
%% Args : DB - The Database
%% Gstkid - The gstkid of the widget
%%
%% Return : TkWidget to destroy
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
delete(DB, Gstkid) ->
gstk_db:delete_widget(DB, Gstkid),
Gstkid#gstkid.widget.
event(DB, Gstkid, Etype, Edata, Args) ->
gstk_generic:event(DB, Gstkid, Etype, Edata, Args).
%%-----------------------------------------------------------------------------
%% MANDATORY FUNCTIONS
%%-----------------------------------------------------------------------------
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : option/4
%% Purpose : Take care of options
%% Args : Option - An option tuple
%% Gstkid - The gstkid of the widget
%% TkW - The tk-widget
%% DB - The Database
%%
%% Return : A tuple {OptionType, OptionCmd}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
option(Option, _Gstkid, _TkW, _DB,_) ->
case Option of
{underline, Int} -> {s, [" -und ", gstk:to_ascii(Int)]};
{wraplength, Int} -> {s, [" -wra ", gstk:to_ascii(Int)]};
_ -> invalid_option
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : read_option/4
%% Purpose : Take care of a read option
%% Args : DB - The Database
%% Gstkid - The gstkid of the widget
%% Option - An option
%%
%% Return : The value of the option or invalid_option
%% [OptionValue | {bad_result, Reason}]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
read_option(Option,Gstkid,TkW,_DB,_) ->
case Option of
underline -> tcl2erl:ret_int([TkW," cg -und"]);
wraplength -> tcl2erl:ret_int([TkW," cg -wra"]);
_ -> {bad_result, {Gstkid#gstkid.objtype, invalid_option, Option}}
end.
%%% ----- Done -----
|
