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
|
/*
* Copyright (C) 2011 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2017-2019 Robin Gareus <robin@gareus.org>
* Copyright (C) 2018 Ben Loftis <ben@harrisonconsoles.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _WIDGETS_ARDOUR_SPACER_H_
#define _WIDGETS_ARDOUR_SPACER_H_
#include "gtkmm2ext/cairo_widget.h"
#include "widgets/visibility.h"
namespace ArdourWidgets {
class LIBWIDGETS_API ArdourVSpacer : public CairoWidget
{
public:
ArdourVSpacer (float r = 0.75f);
protected:
void render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*) {
float height = get_height();
float h = height * ratio;
float t = .5f * (height - h);
ctx->rectangle (0, t, 1, h);
ctx->set_source_rgb (0, 0, 0);
ctx->fill ();
}
void on_size_request (Gtk::Requisition* req) {
req->width = 1;
req->height = 0;
CairoWidget::on_size_request (req);
}
float ratio;
};
class LIBWIDGETS_API ArdourDropShadow : public CairoWidget
{
public:
enum ShadowMode {
DropShadowLongSideOnly,
DropShadowBoth,
};
ArdourDropShadow (ShadowMode m = DropShadowLongSideOnly, float a = 0.55f);
void set_mode(ShadowMode m) {mode = m;}
protected:
void render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*) {
float width = get_width();
float height = get_height();
Cairo::RefPtr<Cairo::LinearGradient> _gradient;
if ( (width>height) || mode == DropShadowBoth ) {
_gradient = Cairo::LinearGradient::create (0, 0, 0, 4);
_gradient->add_color_stop_rgba (0, 0, 0, 0, alpha);
_gradient->add_color_stop_rgba (1, 0, 0, 0, 0);
ctx->set_source (_gradient);
ctx->rectangle (0, 0, width, 4);
ctx->fill ();
}
if ( (height>width) || mode == DropShadowBoth ) {
_gradient = Cairo::LinearGradient::create (0, 0, 4, 0);
_gradient->add_color_stop_rgba (0, 0, 0, 0, alpha);
_gradient->add_color_stop_rgba (1, 0, 0, 0, 0);
ctx->set_source (_gradient);
ctx->rectangle (0, 0, 4, height);
ctx->fill ();
}
}
float alpha;
ShadowMode mode;
};
} /* end namespace */
#endif
|