1 | // |
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2 | // "$Id: unittest_circles.cxx 7913 2010-11-29 18:18:27Z greg.ercolano $" |
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3 | // |
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4 | // Unit tests for the Fast Light Tool Kit (FLTK). |
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5 | // |
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6 | // Copyright 1998-2010 by Bill Spitzak and others. |
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7 | // |
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8 | // This library is free software; you can redistribute it and/or |
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9 | // modify it under the terms of the GNU Library General Public |
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10 | // License as published by the Free Software Foundation; either |
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11 | // version 2 of the License, or (at your option) any later version. |
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12 | // |
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13 | // This library is distributed in the hope that it will be useful, |
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14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | // Library General Public License for more details. |
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17 | // |
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18 | // You should have received a copy of the GNU Library General Public |
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19 | // License along with this library; if not, write to the Free Software |
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20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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21 | // USA. |
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22 | // |
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23 | // Please report all bugs and problems on the following page: |
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24 | // |
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25 | // http://www.fltk.org/str.php |
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26 | // |
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27 | |
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28 | #include <FL/Fl_Box.H> |
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29 | #include <FL/fl_draw.H> |
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30 | |
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31 | // |
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32 | //------- test the circle drawing capabilities of this implementation ---------- |
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33 | // |
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34 | class CircleTest : public Fl_Box { |
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35 | public: |
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36 | static Fl_Widget *create() { |
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37 | return new CircleTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H); |
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38 | } |
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39 | CircleTest(int x, int y, int w, int h) : Fl_Box(x, y, w, h) { |
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40 | label("testing int drawing of circles and ovals (fl_arc, fl_pie)\n" |
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41 | "No red lines should be visible. " |
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42 | "If you see bright red pixels, the circle drawing alignment is off. " |
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43 | "If you see dark red pixels, your system supports anti-aliasing " |
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44 | "which should be of no concern. " |
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45 | "The green rectangles should not be overwritten by circle drawings."); |
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46 | align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_LEFT|FL_ALIGN_WRAP); |
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47 | box(FL_BORDER_BOX); |
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48 | } |
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49 | void draw() { |
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50 | Fl_Box::draw(); |
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51 | int a = x()+10, b = y()+10; fl_color(FL_BLACK); fl_rect(a, b, 100, 100); |
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52 | // test fl_arc for full circles |
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53 | fl_color(FL_GREEN); fl_rect(a+ 9, b+ 9, 33, 33); |
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54 | fl_color(FL_RED); fl_xyline(a+24, b+10, a+27); fl_xyline(a+24, b+40, a+27); |
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55 | fl_yxline(a+10, b+24, b+27); fl_yxline(a+40, b+24, b+27); |
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56 | fl_color(FL_BLACK); fl_arc(a+10, b+10, 31, 31, 0.0, 360.0); |
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57 | // test fl_arc segmet 1 |
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58 | fl_color(FL_GREEN); fl_rect(a+54, b+ 4, 43, 43); |
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59 | fl_rect(a+54, b+4, 18, 18); fl_rect(a+79, b+29, 18, 18); |
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60 | fl_color(FL_RED); fl_point(a+55, b+30); fl_point(a+70, b+45); |
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61 | fl_point(a+80, b+5); fl_point(a+95, b+20); |
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62 | fl_color(FL_BLACK); fl_arc(a+65, b+ 5, 31, 31, -35.0, 125.0); |
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63 | // test fl_arc segmet 2 |
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64 | fl_color(FL_BLACK); fl_arc(a+55, b+15, 31, 31, 145.0, 305.0); |
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65 | // test fl_pie for full circles |
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66 | fl_color(FL_RED); fl_xyline(a+24, b+60, a+27); fl_xyline(a+24, b+90, a+27); |
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67 | fl_yxline(a+10, b+74, b+77); fl_yxline(a+40, b+74, b+77); |
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68 | fl_color(FL_GREEN); fl_rect(a+ 9, b+59, 33, 33); |
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69 | fl_color(FL_BLACK); fl_pie(a+10, b+60, 31, 31, 0.0, 360.0); |
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70 | // test fl_pie segmet 1 |
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71 | fl_color(FL_GREEN); fl_rect(a+54, b+54, 43, 43); |
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72 | fl_rect(a+54, b+54, 18, 18); fl_rect(a+79, b+79, 18, 18); |
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73 | fl_point(a+79, b+71); fl_point(a+71, b+79); |
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74 | fl_color(FL_RED); fl_point(a+55, b+80); fl_point(a+70, b+95); |
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75 | fl_point(a+80, b+55); fl_point(a+95, b+70); |
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76 | fl_point(a+81, b+69); fl_point(a+69, b+81); |
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77 | fl_color(FL_BLACK); fl_pie(a+65, b+55, 31, 31, -30.0, 120.0); |
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78 | // test fl_pie segmet 2 |
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79 | fl_color(FL_BLACK); fl_pie(a+55, b+65, 31, 31, 150.0, 300.0); |
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80 | //---- oval testing (horizontal squish) |
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81 | a +=120; b += 0; fl_color(FL_BLACK); fl_rect(a, b, 100, 100); |
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82 | fl_color(FL_GREEN); |
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83 | fl_rect(a+19, b+9, 63, 33); fl_rect(a+19, b+59, 63, 33); |
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84 | fl_color(FL_BLACK); |
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85 | fl_arc(a+20, b+10, 61, 31, 0, 360); fl_pie(a+20, b+60, 61, 31, 0, 360); |
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86 | //---- oval testing (horizontal squish) |
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87 | a += 120; b += 0; fl_color(FL_BLACK); fl_rect(a, b, 100, 100); |
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88 | fl_color(FL_GREEN); |
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89 | fl_rect(a+9, b+19, 33, 63); fl_rect(a+59, b+19, 33, 63); |
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90 | fl_color(FL_BLACK); |
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91 | fl_arc(a+10, b+20, 31, 61, 0, 360); fl_pie(a+60, b+20, 31, 61, 0, 360); |
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92 | } |
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93 | }; |
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94 | |
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95 | UnitTest circle("circles and arcs", CircleTest::create); |
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96 | |
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97 | // |
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98 | // End of "$Id: unittest_circles.cxx 7913 2010-11-29 18:18:27Z greg.ercolano $" |
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99 | // |
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