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[apps/calculation] Change calculation store model to be a buffer ring

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Change-Id: Ic444456288e68dcf7b78705880b9507de0a95a2d
This commit is contained in:
Émilie Feral
2016-10-25 17:34:52 +02:00
parent c94183253c
commit e9795b16da
6 changed files with 69 additions and 44 deletions
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30
apps/calculation/calculation.cpp
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@@ -4,13 +4,28 @@
namespace Calculation {
Calculation::Calculation() :
m_text(""),
m_expression(nullptr),
m_layout(nullptr),
m_evaluation(Float(0.0f))
m_evaluation(0.0f)
{
}
Calculation & Calculation::operator= (const Calculation & other) {
strlcpy(m_text, other.m_text, sizeof(m_text));
if (m_expression != nullptr) {
delete m_expression;
}
m_expression = Expression::parse(m_text);
if (m_layout != nullptr) {
delete m_layout;
}
if (m_expression) {
m_layout = m_expression->createLayout();
}
m_evaluation = other.m_evaluation;
return *this;
}
void Calculation::setContent(const char * c, Context * context) {
strlcpy(m_text, c, sizeof(m_text));
if (m_expression != nullptr) {
@@ -45,8 +60,15 @@ ExpressionLayout * Calculation::layout() {
return m_layout;
}
Float * Calculation::evaluation() {
return &m_evaluation;
float Calculation::evaluation() {
return m_evaluation;
}
bool Calculation::isEmpty() {
if (m_expression == nullptr) {
return true;
}
return false;
}
}