mirror of
https://github.com/taigrr/arduinolibs
synced 2025-01-18 04:33:12 -08:00
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
/*
|
|
* Copyright (C) 2012 Southern Storm Software, Pty Ltd.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "TextField.h"
|
|
|
|
/**
|
|
* \class TextField TextField.h <TextField.h>
|
|
* \brief Field that displays a read-only text value.
|
|
*
|
|
* This following example displays a text field with the label
|
|
* "Form example" and a value() of "v1.0".
|
|
*
|
|
* \code
|
|
* Form mainForm(lcd);
|
|
* TextField welcomeField(mainForm, "Form example", "v1.0");
|
|
* \endcode
|
|
*
|
|
* As well as static messages, TextField can be used to display read-only
|
|
* information that is computed at runtime:
|
|
*
|
|
* \code
|
|
* TextField timeField(mainForm, "Time since reset", "0");
|
|
*
|
|
* void loop() {
|
|
* timeField.setValue(millis() / 1000);
|
|
* mainForm.dispatch(lcd.getButton());
|
|
* }
|
|
* \endcode
|
|
*
|
|
* For writable fields, use BoolField, IntField, or TimeField.
|
|
*
|
|
* \sa Field
|
|
*/
|
|
|
|
/**
|
|
* \brief Constructs a new text field with a specific \a label.
|
|
*
|
|
* The field is initially not associated with a Form. The field can be
|
|
* added to a form later using Form::addField().
|
|
*
|
|
* The initial value() will be the empty string.
|
|
*
|
|
* \sa Form::addField()
|
|
*/
|
|
TextField::TextField(const String &label)
|
|
: Field(label)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* \brief Constructs a new text field with a specific \a label and \a value
|
|
* attaches it to a \a form.
|
|
*
|
|
* \sa value()
|
|
*/
|
|
TextField::TextField(Form &form, const String &label, const String &value)
|
|
: Field(form, label)
|
|
, _value(value)
|
|
{
|
|
}
|
|
|
|
void TextField::enterField(bool reverse)
|
|
{
|
|
Field::enterField(reverse);
|
|
lcd()->setCursor(0, 1);
|
|
lcd()->print(_value);
|
|
}
|
|
|
|
/**
|
|
* \fn const String &TextField::value() const
|
|
* \brief Returns the text value that is currently displayed by this field.
|
|
*
|
|
* \sa setValue()
|
|
*/
|
|
|
|
/**
|
|
* \brief Sets the text \a value that is displayed by this field.
|
|
*
|
|
* \sa value()
|
|
*/
|
|
void TextField::setValue(const String &value)
|
|
{
|
|
if (isCurrent()) {
|
|
unsigned int prevLen = _value.length();
|
|
unsigned int newLen = value.length();
|
|
_value = value;
|
|
lcd()->setCursor(0, 1);
|
|
lcd()->print(value);
|
|
while (newLen++ < prevLen)
|
|
lcd()->write(' ');
|
|
} else {
|
|
_value = value;
|
|
}
|
|
}
|