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TextField.cpp
1 /*
2  * Copyright (C) 2012 Southern Storm Software, Pty Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
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8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included
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14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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21  */
22 
23 #include "TextField.h"
24 
66 TextField::TextField(const String &label)
67  : Field(label)
68 {
69 }
70 
77 TextField::TextField(Form &form, const String &label, const String &value)
78  : Field(form, label)
79  , _value(value)
80 {
81 }
82 
83 void TextField::enterField(bool reverse)
84 {
85  Field::enterField(reverse);
86  lcd()->setCursor(0, 1);
87  lcd()->print(_value);
88 }
89 
102 void TextField::setValue(const String &value)
103 {
104  if (isCurrent()) {
105  unsigned int prevLen = _value.length();
106  unsigned int newLen = value.length();
107  _value = value;
108  lcd()->setCursor(0, 1);
109  lcd()->print(value);
110  while (newLen++ < prevLen)
111  lcd()->write(' ');
112  } else {
113  _value = value;
114  }
115 }
void setValue(const String &value)
Sets the text value that is displayed by this field.
Definition: TextField.cpp:102
TextField(const String &label)
Constructs a new text field with a specific label.
Definition: TextField.cpp:66
Manages a single data input/output field within a Form.
Definition: Field.h:28
Manager for a form containing data input/output fields.
Definition: Form.h:32
virtual void enterField(bool reverse)
Enters the field due to form navigation.
Definition: Field.cpp:116
void enterField(bool reverse)
Enters the field due to form navigation.
Definition: TextField.cpp:83
LiquidCrystal * lcd() const
Returns the LCD that this field is being drawn on.
Definition: Field.h:47
const String & value() const
Returns the text value that is currently displayed by this field.
Definition: TextField.h:35
bool isCurrent() const
Returns true if this field is the currently-displayed field in its owning form; false otherwise...
Definition: Field.cpp:169