Parola for Arduino  1.0
Text effects for Parola modular hardware
MD_Parola_Close.cpp
1 /*
2 MD_Parola - Library for modular scrolling text and Effects
3 
4 See header file for comments
5 This file contains implements closing text display
6 
7 Copyright (C) 2013 Marco Colli. All rights reserved.
8 
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13 
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18 
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <MD_Parola.h>
25 #include <MD_Parola_lib.h>
26 
27 void MD_Parola::effectClose(bool bLightBar, bool bIn)
28 // Dissolve the current message in/out
29 {
30  static int16_t offset;
31 
32  if (bIn)
33  {
34  switch (_fsmState)
35  {
36  case INITIALISE:
37  case GET_FIRST_CHAR:
38  case GET_NEXT_CHAR:
39  PRINT_STATE("I CLOSE");
40  offset = 0;
41  displayClear();
42  if (bLightBar)
43  {
44  _D.setColumn(_limitLeft, LIGHTBAR);
45  _D.setColumn(_limitRight,LIGHTBAR);
46  }
47  _fsmState = PUT_CHAR;
48  // fall through
49 
50  case PUT_CHAR:
51  PRINT_STATE("I CLOSE");
52  FSMPRINT(" - offset ", offset);
53  displayClear();
54  commonPrint();
55  {
56  const uint16_t halfWidth = (_limitLeft-_limitRight)/2;
57 
58  if (offset > halfWidth)
59  {
60  _fsmState = PAUSE;
61  }
62  else
63  {
64  for (uint16_t i=_limitRight+offset+1; i<_limitLeft-offset; i++)
65  _D.setColumn(i, 0);
66 
67  offset++;
68  if (bLightBar && (offset <= halfWidth))
69  {
70  _D.setColumn(_limitLeft - offset, LIGHTBAR);
71  _D.setColumn(_limitRight + offset, LIGHTBAR);
72  }
73  }
74  }
75  break;
76 
77  default:
78  PRINT_STATE("I CLOSE");
79  _fsmState = PAUSE;
80  }
81  }
82  else // exiting
83  {
84  switch (_fsmState)
85  {
86  case PAUSE:
87 
88  case GET_FIRST_CHAR:
89  case GET_NEXT_CHAR:
90  PRINT_STATE("O CLOSE");
91  FSMPRINT(" - limits R:", _limitRight);
92  FSMPRINT(" L:", _limitLeft);
93  offset = (_limitLeft-_limitRight)/2;
94  FSMPRINT(" O:", offset);
95  displayClear();
96  commonPrint();
97  if (bLightBar)
98  {
99  _D.setColumn(_limitLeft-offset, LIGHTBAR);
100  _D.setColumn(_limitRight+offset, LIGHTBAR);
101  }
102  _fsmState = PUT_CHAR;
103  break;
104 
105  case PUT_CHAR:
106  PRINT_STATE("O CLOSE");
107  FSMPRINT(" - offset ", offset);
108  if (offset < 0)
109  {
110  _fsmState = END;
111  }
112  else
113  {
114  _D.setColumn(_limitLeft - offset, 0);
115  _D.setColumn(_limitRight + offset, 0);
116 
117  offset--;
118  if (bLightBar && (offset >= 0))
119  {
120  _D.setColumn(_limitLeft - offset, LIGHTBAR);
121  _D.setColumn(_limitRight + offset, LIGHTBAR);
122  }
123  }
124  break;
125 
126  default:
127  PRINT_STATE("O CLOSE");
128  _fsmState = END;
129  }
130  }
131 }