AceSegment  0.3.0
An adjustable, configurable, and extensible framework for rendering seven segment LED displays.
ModulatingDigitDriver.h
1 /*
2 MIT License
3 
4 Copyright (c) 2018 Brian T. Park
5 
6 Permission is hereby granted, free of charge, to any person obtaining a copy
7 of this software and associated documentation files (the "Software"), to deal
8 in the Software without restriction, including without limitation the rights
9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 copies of the Software, and to permit persons to whom the Software is
11 furnished to do so, subject to the following conditions:
12 
13 The above copyright notice and this permission notice shall be included in all
14 copies or substantial portions of the Software.
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16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 SOFTWARE.
23 */
24 
25 #ifndef ACE_SEGMENT_MODULATING_DIGIT_DRIVER_H
26 #define ACE_SEGMENT_MODULATING_DIGIT_DRIVER_H
27 
28 #include <stdint.h>
29 #include "DigitDriver.h"
30 
31 namespace ace_segment {
32 
33 class DimmablePattern;
34 
36  public:
38  explicit ModulatingDigitDriver(LedMatrix* ledMatrix,
39  DimmablePattern* dimmablePatterns, uint8_t numDigits,
40  uint8_t numSubFields, bool ownsLedMatrix = false):
41  DigitDriver(ledMatrix, dimmablePatterns, numDigits, ownsLedMatrix),
42  mNumSubFields(numSubFields)
43  {}
44 
45  virtual void configure() override {
47  mCurrentSubField = 0;
48  mCurrentSubFieldMax = 0;
49  mIsPrevDigitOn = true; // setting true forces it off on next interation
50  }
51 
52  virtual uint16_t getFieldsPerFrame() override {
53  return mNumDigits * mNumSubFields;
54  }
55 
56  virtual bool isBrightnessSupported() override { return true; }
57 
58  virtual void displayCurrentField() override;
59 
60  protected:
61  uint8_t const mNumSubFields;
62  uint8_t mCurrentSubField;
63  uint8_t mCurrentSubFieldMax;
64 
67 
68  private:
69  // disable copy-constructor and assignment operator
71  ModulatingDigitDriver& operator=(const ModulatingDigitDriver&) = delete;
72 };
73 
74 }
75 
76 #endif
virtual void configure() override
Configure the driver.
Definition: DigitDriver.h:48
virtual void configure() override
Configure the driver.
virtual bool isBrightnessSupported() override
Returns true if the driver supports brightness.
ModulatingDigitDriver(LedMatrix *ledMatrix, DimmablePattern *dimmablePatterns, uint8_t numDigits, uint8_t numSubFields, bool ownsLedMatrix=false)
Constructor.
Class that represents the abstraction of a particular LED display wiring.
Definition: LedMatrix.h:49
A Driver that assumes that the resistors are on the segments so the multiplexing occurs by scanning t...
Definition: DigitDriver.h:39
virtual uint16_t getFieldsPerFrame() override
Return number of fields per frame.
bool mIsPrevDigitOn
Whether the previous digit was turned on or off.
virtual void displayCurrentField() override
Display the current field of the frame.