The R13B03 release.OTP_R13B03

1 files changed, 202 insertions, 0 deletions

diff --git a/lib/gs/src/gstk_line.erl b/lib/gs/src/gstk_line.erl
new file mode 100644
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+++ b/lib/gs/src/gstk_line.erl
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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 Line Type
+%% ------------------------------------------------------------
+
+-module(gstk_line).
+
+
+%%-----------------------------------------------------------------------------
+%% 			    LINE OPTIONS
+%%
+%%  Attributes:
+%%	arrow			none | first | last | both
+%%	capstyle		butt | projecting | round
+%%	coords			[{X1,Y1}, {X2,Y2} | {Xn,Yn}]
+%%	data			Data
+%%	fg			Color
+%%	joinstyle		miter | bevel | round
+%%	smooth			Bool
+%%	splinesteps		Int
+%%	stipple			Bool
+%%	width			Wth
+%%
+%%  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:
+%%
+
+-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/3
+%% 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 li ", 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
+	{arrow,       Where} -> {s, [" -arrow ", gstk:to_ascii(Where)]};
+	{capstyle,    Style} -> {s, [" -ca ", gstk:to_ascii(Style)]};
+	{fg,          Color} -> {s, [" -f ", gstk:to_color(Color)]};
+	{joinstyle,   Style} -> {s, [" -jo ", gstk:to_ascii(Style)]};
+	{smooth,       Bool} -> {s, [" -sm ", gstk:to_ascii(Bool)]};
+	{splinesteps,   Int} -> {s, [" -sp ", gstk:to_ascii(Int)]};
+	{width,         Int} -> {s, [" -w ", gstk:to_ascii(Int)]};
+
+	_ -> invalid_option
+    end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Function   	: read_option/5
+%% Purpose    	: Take care of a read option
+%% Args        	: DB	  - The Database
+%% Return 	: The value of the option or invalid_option
+%%		  [OptionValue | {bad_result, Reason}]
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+read_option(Option, Gstkid, Canvas, _DB, AItem) ->
+    case Option of
+	arrow       -> tcl2erl:ret_atom([Canvas, " itemcg ",AItem, " -arrow"]);
+	capstyle    -> tcl2erl:ret_atom([Canvas, " itemcg ", AItem, " -ca"]);
+	fg          -> tcl2erl:ret_color([Canvas, " itemcg ", AItem, " -f"]);
+	joinstyle   -> tcl2erl:ret_atom([Canvas, " itemcg ", AItem, " -jo"]);
+	smooth      -> tcl2erl:ret_bool([Canvas, " itemcg ", AItem, " -sm"]);
+	splinesteps -> tcl2erl:ret_int([Canvas, " itemcg ", AItem, " -sp"]);
+	stipple     ->
+	    tcl2erl:ret_stipple([Canvas," itemcg ",AItem," -stipple"]);
+	width       -> tcl2erl:ret_int([Canvas, " itemcg ", AItem, " -w"]);
+	_ -> {bad_result, {Gstkid#gstkid.objtype, invalid_option, Option}}
+    end.
+
+pickout_coords([{coords,Coords} | Rest], Opts) when length(Coords) >= 2 ->
+    case gstk_canvas:coords(Coords) of
+        invalid ->
+            {error, "A line 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 line must have at least four coordinates"}.
+
+%% ----- Done -----
+