sequence_layout.cpp
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#include "sequence_layout.h"
#include <string.h>
#include <assert.h>
namespace Poincare {
SequenceLayout::SequenceLayout(ExpressionLayout * lowerBoundLayout, ExpressionLayout * upperBoundLayout, ExpressionLayout * argumentLayout) :
ExpressionLayout(),
m_lowerBoundLayout(lowerBoundLayout),
m_upperBoundLayout(upperBoundLayout),
m_argumentLayout(argumentLayout)
{
m_lowerBoundLayout->setParent(this);
m_upperBoundLayout->setParent(this);
m_argumentLayout->setParent(this);
m_baseline = max(m_upperBoundLayout->size().height()+k_boundHeightMargin+(k_symbolHeight+1)/2, m_argumentLayout->baseline());
}
SequenceLayout::~SequenceLayout() {
delete m_lowerBoundLayout;
delete m_upperBoundLayout;
delete m_argumentLayout;
}
KDSize SequenceLayout::computeSize() {
KDSize argumentSize = m_argumentLayout->size();
KDSize lowerBoundSize = m_lowerBoundLayout->size();
KDSize upperBoundSize = m_upperBoundLayout->size();
return KDSize(
max(max(k_symbolWidth, lowerBoundSize.width()), upperBoundSize.width())+k_argumentWidthMargin+argumentSize.width(),
m_baseline + max(k_symbolHeight/2+k_boundHeightMargin+lowerBoundSize.height(), argumentSize.height() - m_argumentLayout->baseline())
);
}
ExpressionLayout * SequenceLayout::child(uint16_t index) {
switch (index) {
case 0:
return m_upperBoundLayout;
case 1:
return m_lowerBoundLayout;
case 2:
return m_argumentLayout;
default:
return nullptr;
}
}
KDPoint SequenceLayout::positionOfChild(ExpressionLayout * child) {
KDSize lowerBoundSize = m_lowerBoundLayout->size();
KDSize upperBoundSize = m_upperBoundLayout->size();
KDCoordinate x = 0;
KDCoordinate y = 0;
if (child == m_lowerBoundLayout) {
x = max(max(0, (k_symbolWidth-lowerBoundSize.width())/2), (upperBoundSize.width()-lowerBoundSize.width())/2);
y = m_baseline + k_symbolHeight/2 + k_boundHeightMargin;
} else if (child == m_upperBoundLayout) {
x = max(max(0, (k_symbolWidth-upperBoundSize.width())/2), (lowerBoundSize.width()-upperBoundSize.width())/2);
y = m_baseline - (k_symbolHeight+1)/2- k_boundHeightMargin-upperBoundSize.height();
} else if (child == m_argumentLayout) {
x = max(max(k_symbolWidth, lowerBoundSize.width()), upperBoundSize.width())+k_argumentWidthMargin;
y = m_baseline - m_argumentLayout->baseline();
} else {
assert(false);
}
return KDPoint(x,y);
}
}