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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 Frame Type.
%% ------------------------------------------------------------
-module(gstk_frame).
%%-----------------------------------------------------------------------------
%% FRAME OPTIONS
%%
%% Attributes:
%% anchor n,w,s,e,nw,se,ne,sw,center
%% bg Color
%% bw Int
%% data Data
%% height Int
%% highlightbg Color
%% highlightbw Int
%% highlightfg Color
%% relief Relief [flat|raised|sunken|ridge|groove]
%% width Int
%% x Int
%% y Int
%% cursor arrow|busy|cross|hand|help|resize|text
%%
%% 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
%%
-export([create/3,config/3,read/3,delete/2,event/5,option/5,read_option/5,
mk_create_opts_for_child/4]).
-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),
NGstkid=GstkId#gstkid{widget=TkW},
PlacePreCmd = [";place ", TkW],
case gstk_generic:make_command(Opts, NGstkid, TkW, "", PlacePreCmd, DB) of
{error,Reason} -> {error,Reason};
Cmd when is_list(Cmd) ->
gstk:exec(["frame ", TkW,
" -relief raised -bo 0",Cmd]),
NGstkid
end.
mk_create_opts_for_child(DB,Cgstkid, Pgstkid, Opts) ->
gstk_generic:mk_create_opts_for_child(DB,Cgstkid,Pgstkid,Opts).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% 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],
Opts2 = atomic_width_height(false,false,Opts),
gstk_generic:mk_cmd_and_exec(Opts2,Gstkid,TkW,SimplePreCmd,PlacePreCmd,DB).
atomic_width_height(false,false,[]) ->
[];
atomic_width_height(false,Width,[]) ->
[{width,Width}];
atomic_width_height(Height,false,[]) ->
[{height,Height}];
atomic_width_height(H,W,[]) ->
[{width_height,{W,H}}];
atomic_width_height(_,W,[{height,H}|Opts]) ->
atomic_width_height(H,W,Opts);
atomic_width_height(H,_,[{width,W}|Opts]) ->
atomic_width_height(H,W,Opts);
atomic_width_height(H,W,[Opt|Opts]) ->
[Opt|atomic_width_height(H,W,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) ->
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
{bg, Color} -> {s, [" -bg ", gstk:to_color(Color)]};
{packer_x, _Pack} ->
gstk_db:insert_opt(DB,Gstkid,Option),
none;
{packer_y, _Pack} ->
gstk_db:insert_opt(DB,Gstkid,Option),
none;
{width, W} ->
execute_pack_cmds(DB,xpack(W,DB,Gstkid)),
{s,[" -wi ", gstk:to_ascii(W)]};
{height, H} ->
execute_pack_cmds(DB,ypack(H,DB,Gstkid)),
{s,[" -he ", gstk:to_ascii(H)]};
{width_height,{W,H}} ->
execute_pack_cmds(DB, merge_pack_cmds(xpack(W,DB,Gstkid),
ypack(H,DB,Gstkid))),
{s,[" -he ", gstk:to_ascii(H)," -wi ", gstk:to_ascii(W)]};
_ -> invalid_option
end.
xpack(W,DB,Gstkid) ->
gstk_db:insert_opt(DB,Gstkid,{width,W}),
case gstk_db:opt_or_not(DB,Gstkid,packer_x) of
{value,Pack} when is_list(Pack) ->
ColSiz = gs_packer:pack(W,Pack),
pack_children(pack_x,x,width,DB,
gstk_db:lookup_kids(DB,Gstkid#gstkid.id),
ColSiz);
_Else -> []
end.
ypack(H,DB,Gstkid) ->
gstk_db:insert_opt(DB,Gstkid,{height,H}),
case gstk_db:opt_or_not(DB,Gstkid,packer_y) of
{value,Pack} when is_list(Pack) ->
ColSiz = gs_packer:pack(H,Pack),
pack_children(pack_y,y,height,DB,
gstk_db:lookup_kids(DB,Gstkid#gstkid.id),
ColSiz);
_Else -> []
end.
merge_pack_cmds([{Id,Opts1}|Cmds1],[{Id,Opts2}|Cmds2]) ->
[{Id,Opts1++Opts2}|merge_pack_cmds(Cmds1,Cmds2)];
merge_pack_cmds(L1,L2) ->
L1++L2.
execute_pack_cmds(DB,[{Id,Opts}|Cmds]) ->
gstk:config_impl(DB,Id,Opts),
execute_pack_cmds(DB,Cmds);
execute_pack_cmds(_,[]) ->
ok.
%%----------------------------------------------------------------------
%% Returns: list of {Id,Opts} to be executed (or merged with other first)
%%----------------------------------------------------------------------
pack_children(PackOpt,PosOpt,SizOpt,DB,Kids,Sizes) ->
Schildren = keep_packed(Kids,PackOpt,DB),
pack_children2(PackOpt,PosOpt,SizOpt,Schildren,Sizes).
pack_children2(PackOpt,PosOpt,SizOpt,[{StartStop,Id}|Childs],Sizes) ->
[pack_child(Id,StartStop,SizOpt,PosOpt,Sizes)
| pack_children2(PackOpt,PosOpt,SizOpt,Childs,Sizes)];
pack_children2(_,_,_,[],_) ->
[].
pack_child(Id,{StartPos,StopPos},SizOpt,PosOpt,Sizes) ->
{Pos,Size} = find_pos(StartPos,StopPos,1,0,0,Sizes),
{Id,[{PosOpt,Pos},{SizOpt,Size}]}.
%%----------------------------------------------------------------------
%% Returns: {PixelPos,PixelSize}
%%----------------------------------------------------------------------
find_pos(_StartPos,Pos,Pos,AccPixelPos,AccPixelSize,[Size|_]) ->
{AccPixelPos,Size+AccPixelSize};
find_pos(StartPos,StopPos,Pos,AccPixelPos,0,[Size|Sizes])
when Pos < StartPos ->
find_pos(StartPos,StopPos,Pos+1,Size+AccPixelPos,0,Sizes);
find_pos(_StartPos,StopPos,Pos,AccPixelPos,AccPixelSize,[Size|Sizes])
when Pos < StopPos ->
find_pos(Pos,StopPos,Pos+1,AccPixelPos,Size+AccPixelSize,Sizes).
keep_packed([Id|Ids],PackOpt,DB) ->
case gstk:read_impl(DB,Id,PackOpt) of
undefined ->
keep_packed(Ids,PackOpt,DB);
StartStop ->
[{StartStop,Id} | keep_packed(Ids,PackOpt,DB)]
end;
keep_packed([],_,_) ->
[].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : read_option/3
%% 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
bg -> tcl2erl:ret_color([TkW," cg -bg"]);
_ -> {bad_result, {Gstkid#gstkid.objtype, invalid_option, Option}}
end.
%% ----- Done -----
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