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MD_Parola_Blinds.cpp
1 /*
2 MD_Parola - Library for modular scrolling text and Effects
3
4 See header file for comments
5 /**
6 \brief This file implements blinds effect text display
7
8 Copyright (C) 2013 Marco Colli. All rights reserved.
9
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 2.1 of the License, or (at your option) any later version.
14
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
19
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 #include <MD_Parola.h>
26 #include <MD_Parola_lib.h>
27
28 #define BLINDS_SIZE 4
29
30 void MD_Parola::effectBlinds(bool bIn)
31 // Transfer between messages with blinds effects
32 {
33 static uint8_t blindCount;
34
35 switch (_fsmState)
36 {
37 case INITIALISE: // bIn = true
38 case PAUSE: // bIn = false
39 PRINT_STATE("IO BLIND");
40 blindCount = 0;
41 _fsmState = GET_FIRST_CHAR;
42 // fall through
43
44 case GET_FIRST_CHAR: // blinds closing
45 PRINT_STATE("IO BLIND");
46
47 blindCount++;
48 for (uint16_t i=0; i<_D.getColumnCount(); i++)
49 {
50 if (i % BLINDS_SIZE < blindCount)
51 _D.setColumn(i, 0xff);
52 }
53
54 if (blindCount == BLINDS_SIZE)
55 {
56 blindCount = BLINDS_SIZE;
57 _fsmState = GET_NEXT_CHAR;
58 }
59 break;
60
61 case GET_NEXT_CHAR: // blinds opening
62 PRINT_STATE("IO BLIND");
63 displayClear();
64 if (bIn) commonPrint(); // only do this when putting hte message up
65
66 blindCount--;
67 for (uint16_t i=0; i<_D.getColumnCount(); i++)
68 {
69 if (i % BLINDS_SIZE < blindCount)
70 _D.setColumn(i, 0xff);
71 }
72
73 if (blindCount == 0)
74 _fsmState = PUT_CHAR;
75 break;
76
77 case PUT_CHAR:
78 PRINT_STATE("IO BLIND");
79 displayClear();
80 if (bIn) commonPrint();
81 _fsmState = (bIn ? PAUSE : END);
82 break;
83
84 default:
85 PRINT_STATE("IO BLIND");
86 _fsmState = (bIn ? PAUSE : END);
87 }
88 }