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
|
//
// "$Id: Fl_Button.cxx,v 1.4.2.6.2.12 2002/03/25 21:08:41 easysw Exp $"
//
// Button widget for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2002 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
#include <FL/Fl.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Window.H>
// There are a lot of subclasses, named Fl_*_Button. Some of
// them are implemented by setting the type() value and testing it
// here. This includes Fl_Radio_Button and Fl_Toggle_Button
int Fl_Button::value(int v) {
v = v ? 1 : 0;
oldval = v;
clear_changed();
if (value_ != v) {value_ = v; redraw(); return 1;}
else return 0;
}
void Fl_Button::setonly() { // set this radio button on, turn others off
value(1);
Fl_Group* g = (Fl_Group*)parent();
Fl_Widget*const* a = g->array();
for (int i = g->children(); i--;) {
Fl_Widget* o = *a++;
if (o != this && o->type()==FL_RADIO_BUTTON) ((Fl_Button*)o)->value(0);
}
}
void Fl_Button::draw() {
if (type() == FL_HIDDEN_BUTTON) return;
Fl_Color col = value() ? selection_color() : color();
//if (col == FL_GRAY && Fl::belowmouse()==this) col = FL_LIGHT1;
draw_box(value() ? (down_box()?down_box():fl_down(box())) : box(), col);
draw_label();
if (Fl::focus() == this) draw_focus();
}
int Fl_Button::handle(int event) {
int newval;
switch (event) {
case FL_ENTER:
case FL_LEAVE:
// if ((value_?selection_color():color())==FL_GRAY) redraw();
return 1;
case FL_PUSH:
if (Fl::visible_focus() && handle(FL_FOCUS)) Fl::focus(this);
case FL_DRAG:
if (Fl::event_inside(this)) {
if (type() == FL_RADIO_BUTTON) newval = 1;
else newval = !oldval;
} else
newval = oldval;
if (newval != value_) {
value_ = newval;
redraw();
if (when() & FL_WHEN_CHANGED) do_callback();
}
return 1;
case FL_RELEASE:
if (value_ == oldval) {
if (when() & FL_WHEN_NOT_CHANGED) do_callback();
return 1;
}
if (type() == FL_RADIO_BUTTON)
setonly();
else if (type() == FL_TOGGLE_BUTTON)
oldval = value_;
else {
value(oldval);
if (when() & FL_WHEN_CHANGED) do_callback();
}
if (when() & FL_WHEN_RELEASE) do_callback(); else set_changed();
return 1;
case FL_SHORTCUT:
if (!(shortcut() ?
Fl::test_shortcut(shortcut()) : test_shortcut())) return 0;
if (type() == FL_RADIO_BUTTON && !value_) {
setonly();
if (when() & FL_WHEN_CHANGED) do_callback();
} else if (type() == FL_TOGGLE_BUTTON) {
value(!value());
if (when() & FL_WHEN_CHANGED) do_callback();
}
if (when() & FL_WHEN_RELEASE) do_callback(); else set_changed();
return 1;
case FL_FOCUS :
case FL_UNFOCUS :
if (Fl::visible_focus()) {
if (event == FL_UNFOCUS && box() == FL_NO_BOX) {
// Buttons with the FL_NO_BOX boxtype need a parent to
// redraw, since it is responsible for redrawing the
// background...
Fl_Widget *p;
for (p = parent(); p; p = p->parent())
if (p->box() != FL_NO_BOX) break;
if (p) p->redraw();
else window()->redraw();
}
else redraw();
return 1;
} else return 0;
case FL_KEYBOARD :
if (Fl::focus() == this && Fl::event_key() == ' ') {
if (type() == FL_RADIO_BUTTON && !value_) {
setonly();
if (when() & FL_WHEN_CHANGED) do_callback();
} else if (type() == FL_TOGGLE_BUTTON) {
value(!value());
if (when() & FL_WHEN_CHANGED) do_callback();
}
if (when() & FL_WHEN_RELEASE) do_callback(); else set_changed();
return 1;
}
default:
return 0;
}
}
Fl_Button::Fl_Button(int x,int y,int w,int h, const char *l)
: Fl_Widget(x,y,w,h,l) {
box(FL_UP_BOX);
down_box(FL_NO_BOX);
value_ = oldval = 0;
shortcut_ = 0;
set_flag(SHORTCUT_LABEL);
}
//
// End of "$Id: Fl_Button.cxx,v 1.4.2.6.2.12 2002/03/25 21:08:41 easysw Exp $".
//
|
