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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors:
* see git history
* Lauris Kaplinski <lauris@kaplinski.com>
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_COLOR_SLIDER_H
#define SEEN_COLOR_SLIDER_H
#include <gtkmm/widget.h>
#include <sigc++/signal.h>
namespace Inkscape {
namespace UI {
namespace Widget {
/*
* A slider with colored background
*/
class ColorSlider : public Gtk::Widget {
public:
ColorSlider(Glib::RefPtr<Gtk::Adjustment> adjustment);
~ColorSlider() override;
void setAdjustment(Glib::RefPtr<Gtk::Adjustment> adjustment);
void setColors(guint32 start, guint32 mid, guint32 end);
void setMap(const guchar *map);
void setBackground(guint dark, guint light, guint size);
sigc::signal<void ()> signal_grabbed;
sigc::signal<void ()> signal_dragged;
sigc::signal<void ()> signal_released;
sigc::signal<void ()> signal_value_changed;
protected:
void on_size_allocate(Gtk::Allocation &allocation) override;
void on_realize() override;
void on_unrealize() override;
bool on_button_press_event(GdkEventButton *event) override;
bool on_button_release_event(GdkEventButton *event) override;
bool on_motion_notify_event(GdkEventMotion *event) override;
bool on_draw(const Cairo::RefPtr<Cairo::Context> &cr) override;
void get_preferred_width_vfunc(int &minimum_width, int &natural_width) const override;
void get_preferred_width_for_height_vfunc(int height, int &minimum_width, int &natural_width) const override;
void get_preferred_height_vfunc(int &minimum_height, int &natural_height) const override;
void get_preferred_height_for_width_vfunc(int width, int &minimum_height, int &natural_height) const override;
private:
void _onAdjustmentChanged();
void _onAdjustmentValueChanged();
bool _dragging;
Glib::RefPtr<Gtk::Adjustment> _adjustment;
sigc::connection _adjustment_changed_connection;
sigc::connection _adjustment_value_changed_connection;
gfloat _value;
gfloat _oldvalue;
guchar _c0[4], _cm[4], _c1[4];
guchar _b0, _b1;
guchar _bmask;
guchar *_map;
Glib::RefPtr<Gdk::Window> _gdk_window;
};
} // namespace Widget
} // namespace UI
} // namespace Inkscape
#endif
/*
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:textwidth=99 :
|
