1 | // |
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2 | // "$Id: unittest_lines.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 line drawing capabilities of this implementation ---------- |
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33 | // |
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34 | class LineTest : 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 LineTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H); |
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38 | } |
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39 | LineTest(int x, int y, int w, int h) : Fl_Box(x, y, w, h) { |
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40 | label("testing the integer based fl_line calls\n" |
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41 | "No red pixels should be visible.\n" |
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42 | "If you see bright red pixels, the line drawing alignment is off,\n" |
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43 | "or the last pixel in a line does not get drawn.\n" |
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44 | "If you see dark red pixels, anti-aliasing must be switched off."); |
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45 | align(FL_ALIGN_INSIDE|FL_ALIGN_BOTTOM|FL_ALIGN_LEFT|FL_ALIGN_WRAP); |
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46 | box(FL_BORDER_BOX); |
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47 | } |
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48 | void draw() { |
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49 | Fl_Box::draw(); |
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50 | int a = x()+10, b = y()+10; fl_color(FL_BLACK); fl_rect(a, b, 100, 100); |
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51 | // testing fl_xyline(x, y, x1) |
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52 | fl_color(FL_RED); fl_point(a+10, b+10); fl_point(a+20, b+10); |
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53 | fl_color(FL_BLACK); fl_xyline(a+10, b+10, a+20); |
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54 | // testing fl_xyline(x, y, x1, y2); |
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55 | fl_color(FL_RED); fl_point(a+10, b+20); fl_point(a+20, b+20); |
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56 | fl_point(a+20, b+30); |
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57 | fl_color(FL_BLACK); fl_xyline(a+10, b+20, a+20, b+30); |
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58 | // testing fl_xyline(x, y, x1, y2, x3); |
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59 | fl_color(FL_RED); fl_point(a+10, b+40); fl_point(a+20, b+40); |
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60 | fl_point(a+20, b+50); fl_point(a+30, b+50); |
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61 | fl_color(FL_BLACK); fl_xyline(a+10, b+40, a+20, b+50, a+30); |
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62 | //+++ add testing for the fl_yxline commands! |
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63 | // testing fl_loop(x,y, x,y, x,y, x, y) |
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64 | fl_color(FL_RED); fl_point(a+60, b+60); fl_point(a+90, b+60); |
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65 | fl_point(a+60, b+90); fl_point(a+90, b+90); |
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66 | fl_color(FL_BLACK); |
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67 | fl_loop(a+60, b+60, a+90, b+60, a+90, b+90, a+60, b+90); |
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68 | } |
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69 | }; |
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70 | |
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71 | UnitTest lines("drawing lines", LineTest::create); |
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72 | |
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73 | // |
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74 | // End of "$Id: unittest_lines.cxx 7913 2010-11-29 18:18:27Z greg.ercolano $" |
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75 | // |
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