1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2012. 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 Rectangle Type
%% ------------------------------------------------------------
-module(gstk_rectangle).
-compile([{nowarn_deprecated_function,{gs,pair,2}}]).
%%-----------------------------------------------------------------------------
%% RECTANGLE OPTIONS
%%
%% Attributes:
%% bw Int
%% coords [{X1,Y1}, {X2,Y2}]
%% data Data
%% fg Color
%% fill Color
%% 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.
%% Args : DB - The Database
%% Objmod - An atom, this module
%% Objtype - An atom, the logical widget type
%% Owner - Pid of the creator
%% Name - An atom naming the widget
%% Parent - Gsid of the parent
%% Opts - A list of options for configuring the widget
%%
%% Return : [Gsid_of_new_widget | {bad_result, Reason}]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
create(DB,Gstkid, Opts) ->
case gstk_canvas:pickout_coords(Opts, [],rectangle,2) of
{error, Error} ->
{bad_result, Error};
{Coords, NewOpts} ->
gstk_db:insert_opt(DB,Gstkid,gs:pair(coords,Opts)),
Ngstkid=gstk_canvas:upd_gstkid(DB, Gstkid, Opts),
#gstkid{widget=CanvasTkW}=Ngstkid,
MCmd = [CanvasTkW, " create re ", 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
{bw, Int} -> {s, [" -w ", gstk:to_ascii(Int)]};
{fg, Color} -> {s, [" -outline ", gstk:to_color(Color)]};
_ -> invalid_option
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Function : read_option/5
%% Purpose : Take care of a read option
%% Args : DB - The Database
%% 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
bw -> tcl2erl:ret_int([Canvas, " itemcg ", AItem, " -w"]);
fg -> tcl2erl:ret_color([Canvas," itemcg ", AItem, " -outline"]);
stipple ->
tcl2erl:ret_stipple([Canvas, " itemcg ", AItem, " -stipple"]);
_ -> {bad_result, {Gstkid#gstkid.objtype, invalid_option, Option}}
end.
%% ----- Done -----
|
