1 /*
2 Copyright (C) 2012 Johan Mattsson
3
4 This library is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 3 of the
7 License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13 */
14
15 using Cairo;
16
17 namespace BirdFont {
18
19 public class ColorTool : Tool {
20
21 public double color_r = 0;
22 public double color_g = 0;
23 public double color_b = 0;
24 public double color_a = 0;
25
26 public signal void color_updated ();
27
28 public ColorTool (string tooltip = "") {
29 base (null, tooltip);
30
31 color_updated.connect (() => {
32 redraw ();
33 GlyphCanvas.redraw ();
34 });
35 }
36
37 public Color get_color () {
38 return new Color (color_r, color_g, color_b, color_a);
39 }
40
41 public void set_color (Color c) {
42 color_r = c.r;
43 color_g = c.g;
44 color_b = c.b;
45 color_a = c.a;
46 color_updated ();
47 }
48
49 public void signal_color_updated () {
50 color_updated ();
51 }
52
53 public override void draw_tool (Context cr, double px, double py) {
54 double scale = Toolbox.get_scale ();
55 double x = this.x - px;
56 double y = this.y - py;
57 double xt = x + w / 2 - 8 * scale;
58 double yt = y + h / 2 - 8 * scale;
59
60 base.draw_tool (cr, px, py);
61
62 cr.save ();
63 cr.set_source_rgba (color_r, color_g, color_b, 1);
64 cr.rectangle (xt, yt, 16 * scale, 16 * scale);
65 cr.fill ();
66 cr.restore ();
67 }
68
69 public void set_r (double c) {
70 color_r = c;
71 }
72
73 public void set_g (double c) {
74 color_g = c;
75 }
76
77 public void set_b (double c) {
78 color_b = c;
79 }
80
81 public void set_a (double c) {
82 color_a = c;
83 }
84
85 }
86
87 }
88