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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1996-2009. 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%
+%%
+
+%%
+%% ------------------------------------------------------------
+%% Basic Text Type
+%% ------------------------------------------------------------
+
+-module(gstk_text).
+
+%%-----------------------------------------------------------------------------
+%% TEXT OPTIONS
+%%
+%% Attributes:
+%% anchor n|w|e|s|nw|sw|ne|se|center
+%% coords [{X,Y}]
+%% data Data
+%% fg Color
+%% font Font
+%% justify left | center | right
+%% stipple Bool
+%% text String
+%% width Int (line length in characters)
+%%
+%% Commands:
+%% lower
+%% move {Dx, Dy}
+%% raise
+%% scale {Xo, Yo, Sx, Sy}
+%% setfocus Bool
+%%
+%% Events:
+%% buttonpress [Bool | {Bool, Data}]
+%% buttonrelease [Bool | {Bool, Data}]
+%% enter [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:
+%% fontfamily ?????? Family
+%% fontsize ?????? Size
+%% style ?????? [bold,italic]
+%%
+
+-export([create/3, config/3, read/3, delete/2, destroy/3, event/5,
+ option/5,read_option/5]).
+
+-include("gstk.hrl").
+
+%%-----------------------------------------------------------------------------
+%% MANDATORY INTERFACE FUNCTIONS
+%%----------------------------------------------------------------------------
+create(DB, Gstkid, Opts) ->
+ case gstk_canvas:pickout_coords(Opts, [],text,1) of
+ {error, Error} ->
+ {bad_result, Error};
+ {Coords, NewOpts} ->
+ Ngstkid=gstk_canvas:upd_gstkid(DB, Gstkid, Opts),
+ #gstkid{widget=CanvasTkW}=Ngstkid,
+ MCmd = [CanvasTkW, " create te ", Coords],
+ gstk_canvas:mk_cmd_and_call(NewOpts,Ngstkid,CanvasTkW, MCmd, DB)
+ end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Function : config/3
+%% Purpose : Configure a widget of the type defined in this module.
+%% Return : [true | {bad_result, Reason}]
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+config(DB, Gstkid, Opts) ->
+ gstk_canvas:item_config(DB, Gstkid, Opts).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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) ->
+ Item = Gstkid#gstkid.widget_data,
+ gstk_generic:read_option(DB,Gstkid,Opt,[gstk:to_ascii(Item)]).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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 | {Parent, Objmod, Args}.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+delete(DB, Gstkid) ->
+ gstk_canvas:item_delete_impl(DB,Gstkid).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Function : destroy/3
+%% Purpose : Destroy a widget
+%% Args : DB - The Database
+%% Canvas - The canvas tk widget
+%% Item - The item number to destroy
+%%
+%% Return : [true | {bad_result, Reason}]
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+destroy(_DB, Canvas, Item) ->
+ gstk:exec([Canvas, " delete ", gstk:to_ascii(Item)]).
+
+
+event(DB, Gstkid, Etype, Edata, Args) ->
+ gstk_generic:event(DB, Gstkid, Etype, Edata, Args).
+
+
+%%-----------------------------------------------------------------------------
+%% MANDATORY FUNCTIONS
+%%-----------------------------------------------------------------------------
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Function : option/5
+%% Purpose : Take care of options
+%% Args : Option - An option tuple
+%% MainW - The main tk-widget
+%%
+%% Return : A tuple {OptionType, OptionCmd}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+option(Option, Gstkid, _Canvas, DB, _AItem) ->
+ case Option of
+ {anchor, How} -> {s, [" -anchor ", gstk:to_ascii(How)]};
+ {fg, Color} -> {s, [" -fi ", gstk:to_color(Color)]};
+ {font, Font} when is_tuple(Font) ->
+ gstk_db:insert_opt(DB,Gstkid,Option),
+ {s, [" -fo ", gstk_font:choose_ascii(DB,Font)]};
+ {justify, How} -> {s, [" -j ", gstk:to_ascii(How)]};
+ {text, Text} -> {s, [" -te ", gstk:to_ascii(Text)]};
+ {width, Width} -> {s, [" -w ", gstk:to_ascii(Width)]};
+ _ -> invalid_option
+ end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Function : read_option/5
+%% 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, Canvas, DB, AItem) ->
+ case Option of
+ anchor -> tcl2erl:ret_atom([Canvas, " itemcg ", AItem, " -anchor"]);
+ fg -> tcl2erl:ret_color([Canvas, " itemcg ", AItem, " -fi"]);
+ font -> gstk_db:opt(DB,Gstkid,font,undefined);
+ justify -> tcl2erl:ret_atom([Canvas, " itemcg ", AItem, " -j"]);
+ stipple -> tcl2erl:ret_stipple([Canvas," itemcg ",AItem," -stipple"]);
+ text -> tcl2erl:ret_str([Canvas, " itemcg ", AItem, " -te"]);
+ width -> tcl2erl:ret_int([Canvas, " itemcg ", AItem, " -w"]);
+ _ -> {bad_result, {Gstkid#gstkid.objtype, invalid_option, Option}}
+ end.
+
+
+%% ----- Done -----