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-rw-r--r--lib/gs/src/gstk_polygon.erl196
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diff --git a/lib/gs/src/gstk_polygon.erl b/lib/gs/src/gstk_polygon.erl
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-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1996-2016. 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 Polygon Type
-%% ------------------------------------------------------------
-
--module(gstk_polygon).
-
-
-%%-----------------------------------------------------------------------------
-%% POLYGON OPTIONS
-%%
-%% Attributes:
-%% bw Int
-%% coords [{X1,Y1}, {X2,Y2} | {Xn,Yn}]
-%% data Data
-%% fg Color
-%% fill Color
-%% smooth Bool
-%% splinesteps Int
-%% stipple Bool
-%%
-%% 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
-%%
-
--export([create/3, config/3, read/3, delete/2, destroy/3, event/5,
- option/5,read_option/5]).
-
--include("gstk.hrl").
-
-%%-----------------------------------------------------------------------------
-%% MANDATORY INTERFACE FUNCTIONS
-%%-----------------------------------------------------------------------------
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Function : create/7
-%% Purpose : Create a widget of the type defined in this module.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-create(DB, Gstkid, Opts) ->
- case pickout_coords(Opts, []) of
- {error, Error} ->
- {bad_result, Error};
- {Coords, NewOpts} ->
- Ngstkid=gstk_canvas:upd_gstkid(DB, Gstkid, Opts),
- #gstkid{widget=CanvasTkW}=Ngstkid,
- MCmd = [CanvasTkW, " create po ", 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
-%% Gstkid - The gstkid of the widget
-%% MainW - The main tk-widget
-%% Canvas - The canvas tk-widget
-%% DB - The Database
-%%
-%% Return : A tuple {OptionType, OptionCmd}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-option(Option, _Gstkid, _Canvas, _DB, _AItem) ->
- case Option of
- {fg, Color} -> {s, [" -outline ", gstk:to_color(Color)]};
- {bw, Int} -> {s, [" -w ", gstk:to_ascii(Int)]};
- {smooth, Bool} -> {s, [" -sm ", gstk:to_ascii(Bool)]};
- {splinesteps, Int} -> {s, [" -sp ", gstk:to_ascii(Int)]};
- _ -> invalid_option
- end.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Function : read_option/5
-%% Purpose : Take care of a read option
-%% Return : The value of the option or invalid_option
-%% [OptionValue | {bad_result, Reason}]
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-read_option(Option, Gstkid, Canvas, _DB, AItem) ->
- case Option of
- bw -> tcl2erl:ret_int([Canvas, " itemcg ", AItem, " -w"]);
- fg ->
- tcl2erl:ret_color([Canvas, " itemcg ", AItem, " -outline"]);
- smooth -> tcl2erl:ret_bool([Canvas, " itemcg ", AItem, " -sm"]);
- splinesteps -> tcl2erl:ret_int([Canvas, " itemcg ", AItem, " -sp"]);
- stipple ->
- tcl2erl:ret_stipple([Canvas," itemcg ",AItem," -stipple"]);
-
- _ -> {bad_result, {Gstkid#gstkid.objtype, invalid_option, Option}}
- end.
-
-%%-----------------------------------------------------------------------------
-%% PRIMITIVES
-%%-----------------------------------------------------------------------------
-
-pickout_coords([{coords,Coords} | Rest], Opts) when length(Coords) >= 2 ->
- case gstk_canvas:coords(Coords) of
- invalid ->
- {error, "A polygon must have at least four coordinates"};
- RealCoords ->
- {RealCoords, lists:append(Rest, Opts)}
- end;
-pickout_coords([Opt | Rest], Opts) ->
- pickout_coords(Rest, [Opt|Opts]);
-pickout_coords([], _Opts) ->
- {error, "A polygon must have at least four coordinates"}.
-%% ----- Done -----
-