The Birdfont Source Code


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CheckBox.vala in /libbirdfont

This file is a part of the Birdfont project.

Contributing

Send patches or pull requests to johan.mattsson.m@gmail.com.
Clone this repository: git clone https://github.com/johanmattssonm/birdfont.git
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1 /* 2 Copyright (C) 2014 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 using Math; 17 18 namespace BirdFont { 19 20 public class CheckBox : Widget { 21 22 public bool checked = false; 23 public signal void updated (bool checked); 24 public double padding = 3.333 * MainWindow.units; 25 26 public double w = 12 * MainWindow.units; 27 public double h = 12 * MainWindow.units; 28 29 bool has_focus = false; 30 31 public Text label; 32 33 public CheckBox (string text = "", double font_size = -1) { 34 if (font_size < 0) { 35 font_size = h; 36 } 37 38 label = new Text (text, font_size); 39 Theme.text_color (label, "Text Foreground"); 40 } 41 42 public void set_checked (bool c) { 43 checked = c; 44 updated (c); 45 } 46 47 public override double get_height () { 48 return label.font_size; 49 } 50 51 public override double get_width () { 52 return w + 2 * padding + label.get_sidebearing_extent (); 53 } 54 55 public override void draw (Context cr) { 56 double d = w * 0.25; 57 double center_y = (get_height () - (h + 2 * padding)) / 2.0 + padding; 58 59 cr.save (); 60 Theme.color (cr, "Checkbox Background"); 61 draw_rounded_rectangle (cr, widget_x, widget_y + center_y, w, h - padding, padding); 62 cr.fill (); 63 cr.restore (); 64 65 cr.save (); 66 cr.set_line_width (1); 67 68 if (has_focus) { 69 Theme.color (cr, "Highlighted 1"); 70 } else { 71 Theme.color (cr, "Text Foreground"); 72 } 73 74 draw_rounded_rectangle (cr, widget_x, widget_y + center_y, w, h - padding, padding); 75 cr.stroke (); 76 cr.restore (); 77 78 if (checked) { 79 cr.save (); 80 81 Theme.color (cr, "Text Foreground"); 82 cr.set_line_width (1); 83 84 cr.move_to (widget_x + d, widget_y + d + center_y); 85 cr.line_to (widget_x + w - d, widget_y + h - d + center_y); 86 cr.stroke (); 87 88 cr.move_to (widget_x + w - d, widget_y + d + center_y); 89 cr.line_to (widget_x + d, widget_y + h - d + center_y); 90 cr.stroke (); 91 92 cr.restore (); 93 } 94 95 label.widget_x = widget_x + 1.5 * w; 96 label.widget_y = widget_y; 97 label.draw (cr); 98 } 99 100 public override void key_press (uint keyval) { 101 unichar c = (unichar) keyval; 102 103 if (c == ' ') { 104 checked = !checked; 105 } 106 } 107 108 public override void focus (bool focus) { 109 has_focus = focus; 110 } 111 112 } 113 114 } 115