summaryrefslogtreecommitdiffstats
path: root/src/ui/widget/font-variations.h
blob: e3c09aac1bec4c5e9d3450b1de849060558af537 (plain)
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
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Author:
 *   Felipe Corrêa da Silva Sanches <juca@members.fsf.org>
 *   Tavmjong Bah <tavmjong@free.fr>
 *
 * Copyright (C) 2018 Felipe Corrêa da Silva Sanches, Tavmong Bah
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */

#ifndef INKSCAPE_UI_WIDGET_FONT_VARIATIONS_H
#define INKSCAPE_UI_WIDGET_FONT_VARIATIONS_H

#include <gtkmm/grid.h>
#include <gtkmm/sizegroup.h>
#include <gtkmm/label.h>
#include <gtkmm/scale.h>

#include "libnrtype/OpenTypeUtil.h"

#include "style.h"

namespace Inkscape {
namespace UI {
namespace Widget {


/**
 * A widget for a single axis: Label and Slider
 */
class FontVariationAxis : public Gtk::Grid
{
public:
    FontVariationAxis(Glib::ustring name, OTVarAxis& axis);
    Glib::ustring get_name() { return name; }
    Gtk::Label* get_label() { return label; }
    double get_value() { return scale->get_value(); }
    int get_precision() { return precision; }
    Gtk::Scale* get_scale() { return scale; }
    double get_def() { return def; }

private:

    // Widgets
    Glib::ustring name;
    Gtk::Label* label;
    Gtk::Scale* scale;

    int precision;
    double def = 0.0; // Default value

    // Signals
    sigc::signal<void> signal_changed;
};

/**
 * A widget for selecting font variations (OpenType Variations).
 */
class FontVariations : public Gtk::Grid
{

public:

    /**
     * Constructor
     */
    FontVariations();

protected:

public:

    /**
     * Update GUI.
     */
    void update(const Glib::ustring& font_spec);

    /**
     * Fill SPCSSAttr based on settings of buttons.
     */
    void fill_css( SPCSSAttr* css );

    /**
     * Get CSS String
     */
    Glib::ustring get_css_string();

    Glib::ustring get_pango_string();

    void on_variations_change();

    /**
     * Let others know that user has changed GUI settings.
     * (Used to enable 'Apply' and 'Default' buttons.)
     */
    sigc::connection connectChanged(sigc::slot<void> slot) {
        return signal_changed.connect(slot);
    }

    // return true if there are some variations present
    bool variations_present() const;

private:

    std::vector<FontVariationAxis*> axes;
    Glib::RefPtr<Gtk::SizeGroup> size_group;

    sigc::signal<void> signal_changed;
};

 
} // namespace Widget
} // namespace UI
} // namespace Inkscape

#endif // INKSCAPE_UI_WIDGET_FONT_VARIATIONS_H

/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8 :