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
187
188
189
190
|
implement Dialog;
include "sys.m";
sys: Sys;
include "draw.m";
draw: Draw;
Screen, Rect, Point: import draw;
include "tk.m";
tk: Tk;
Toplevel: import tk;
include "tkclient.m";
tkclient: Tkclient;
include "dialog.m";
init(): string
{
sys = load Sys Sys->PATH;
draw = load Draw Draw->PATH;
tk = load Tk Tk->PATH;
tkclient = load Tkclient Tkclient->PATH;
tkclient->init();
return nil;
}
STEP: con 20;
#
# find upper left corner for subsidiary child window (always at constant
# position relative to parent)
#
localgeom(im: ref Draw->Image): string
{
if (im == nil)
return nil;
return sys->sprint("-x %d -y %d", im.r.min.x+STEP, im.r.min.y+STEP);
}
centre(t: ref Toplevel)
{
org: Point;
org.x = t.image.screen.image.r.dx() / 2 - t.image.r.dx() / 2;
org.y = t.image.screen.image.r.dy() / 3 - t.image.r.dy() / 2;
if (org.y < 0)
org.y = 0;
cmd(t, ". configure -x " + string org.x + " -y " + string org.y);
}
tkcmds(top: ref Tk->Toplevel, a: array of string)
{
n := len a;
for(i := 0; i < n; i++)
tk->cmd(top, a[i]);
}
dialog_config := array[] of {
"label .top.ico",
"label .top.msg",
"frame .top -relief raised -bd 1",
"frame .bot -relief raised -bd 1",
"pack .top.ico -side left -padx 10 -pady 10",
"pack .top.msg -side left -expand 1 -fill both -padx 10 -pady 10",
"pack .Wm_t .top .bot -side top -fill both",
"focus ."
};
prompt(ctxt: ref Draw->Context,
parent: ref Draw->Image,
ico: string,
title:string,
msg: string,
dflt: int,
labs : list of string): int
{
where := localgeom(parent);
(t, tc) := tkclient->toplevel(ctxt, where, title, Tkclient->Popup);
d := chan of string;
tk->namechan(t, d, "d");
tkcmds(t, dialog_config);
cmd(t, ".top.msg configure -text '" + msg);
if (ico != nil)
cmd(t, ".top.ico configure -bitmap " + ico);
n := len labs;
for(i := 0; i < n; i++) {
cmd(t, "button .bot.button" +
string(i) + " -command {send d " +
string(i) + "} -text '" + hd labs);
if(i == dflt) {
cmd(t, "frame .bot.default -relief sunken -bd 1");
cmd(t, "pack .bot.default -side left -expand 1 -padx 10 -pady 8");
cmd(t, "pack .bot.button" + string i +
" -in .bot.default -side left -padx 10 -pady 8 -ipadx 8 -ipady 4");
}
else
cmd(t, "pack .bot.button" + string i +
" -side left -expand 1 -padx 10 -pady 10 -ipadx 8 -ipady 4");
labs = tl labs;
}
if(dflt >= 0)
cmd(t, "bind . <Key-\n> {send d " + string dflt + "}");
e := cmd(t, "variable lasterror");
if(e != "") {
sys->fprint(sys->fildes(2), "Dialog error: %s\n", e);
return dflt;
}
tkclient->onscreen(t, nil);
tkclient->startinput(t, "kbd" :: "ptr" :: nil);
cmd(t, "update");
for(;;) alt {
c := <-t.ctxt.kbd =>
tk->keyboard(t, c);
p := <-t.ctxt.ptr =>
tk->pointer(t, *p);
c := <-t.ctxt.ctl or
c = <-t.wreq =>
tkclient->wmctl(t, c);
ans := <-d =>
return int ans;
tcs := <-tc =>
if(tcs == "exit")
return dflt;
tkclient->wmctl(t, tcs);
}
}
getstring_config := array[] of {
"label .lab",
"entry .ent -relief sunken -bd 2 -width 200",
"pack .lab .ent -side left",
"bind .ent <Key-\n> {send f 1}",
"focus .ent"
};
getstring(ctxt: ref Draw->Context, parent: ref Draw->Image, msg: string): string
{
where := localgeom(parent);
(t, wmctl) := tkclient->toplevel(ctxt, where + " -borderwidth 2 -relief raised", nil, Tkclient->Popup);
f := chan of string;
tk->namechan(t, f, "f");
tkcmds(t, getstring_config);
cmd(t, ".lab configure -text '" + msg + ": ");
tkclient->onscreen(t, nil);
tkclient->startinput(t, "kbd" :: "ptr" :: nil);
e := tk->cmd(t, "variable lasterror");
if(e != "") {
sys->print("getstring error: %s\n", e);
return "";
}
cmd(t, "update");
for(;;)alt{
c := <-t.ctxt.kbd =>
tk->keyboard(t, c);
p := <-t.ctxt.ptr =>
tk->pointer(t, *p);
c := <-t.ctxt.ctl or
c = <-wmctl =>
if(c == "exit")
return nil;
tkclient->wmctl(t, c);
<-f =>
return tk->cmd(t, ".ent get");
}
}
Showtk: con 0;
cmd(top: ref Tk->Toplevel, s: string): string
{
if (Showtk)
sys->print("%s\n", s);
e := tk->cmd(top, s);
if (e != nil && e[0] == '!')
sys->fprint(sys->fildes(2), "Dialog: tk error %s on '%s'\n", e, s);
return e;
}
|
