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
|
/*
Copyright (C) 2011-2014 Paul Davis
Original Author: Carl Hetherington <cth@carlh.net>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CANVAS_BOX_H__
#define __CANVAS_BOX_H__
#include "canvas/item.h"
namespace ArdourCanvas
{
class Rectangle;
/** a Container is an item which has no content of its own
* but renders its children in some geometrical arrangement.
*
* Imagined examples of containers:
*
* Container: renders each child at the child's self-determined position
* Box: renders each child along an axis (vertical or horizontal)
* Table/Grid: renders each child within a two-dimensional grid
*
* Other?
*/
class LIBCANVAS_API Box : public Item
{
public:
enum Orientation {
Vertical,
Horizontal
};
Box (Canvas *, Orientation);
Box (Item *, Orientation);
Box (Item *, Duple const & position, Orientation);
void set_spacing (double s);
void set_padding (double top, double right = -1.0, double bottom = -1.0, double left = -1.0);
void set_margin (double top, double right = -1.0, double bottom = -1.0, double left = -1.0);
/* aliases so that CSS box model terms work */
void set_border_width (double w) { set_outline_width (w); }
void set_border_color (Color c) { set_outline_color (c); }
void add (Item*);
void pack_start (Item*, double extra_padding = 0);
void pack_end (Item*, double extra_padding = 0);
void set_collapse_on_hide (bool);
void set_homogenous (bool);
void compute_bounding_box () const;
void render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
protected:
Orientation orientation;
double spacing;
double top_padding, right_padding, bottom_padding, left_padding;
double top_margin, right_margin, bottom_margin, left_margin;
void child_changed ();
private:
Rectangle *self;
bool collapse_on_hide;
bool homogenous;
void reset_self ();
void reposition_children ();
};
class LIBCANVAS_API VBox : public Box
{
public:
VBox (Canvas *);
VBox (Item *);
VBox (Item *, Duple const & position);
};
class LIBCANVAS_API HBox : public Box
{
public:
HBox (Canvas *);
HBox (Item *);
HBox (Item *, Duple const & position);
};
}
#endif
|
