string_layout.cpp
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#include <assert.h>
#include <stdlib.h>
#include "string_layout.h"
namespace Poincare {
StringLayout::StringLayout(const char * string, size_t length, KDText::FontSize fontSize) :
ExpressionLayout(),
m_fontSize(fontSize)
{
m_string = new char[length+1];
memcpy(m_string, string, length);
m_string[length] = 0;
// Half height of the font.
m_baseline = (KDText::charSize(m_fontSize).height()+1)/2;
}
StringLayout::~StringLayout() {
delete[] m_string;
}
char * StringLayout::text() {
return m_string;
}
ExpressionLayout * StringLayout::child(uint16_t index) {
return nullptr;
}
void StringLayout::render(KDContext * ctx, KDPoint p, KDColor expressionColor, KDColor backgroundColor) {
ctx->drawString(m_string, p, m_fontSize, expressionColor, backgroundColor);
}
KDPoint StringLayout::positionOfChild(ExpressionLayout * child) {
assert(false); // We should never be here
return KDPointZero;
}
KDSize StringLayout::computeSize() {
return KDText::stringSize(m_string, m_fontSize);
}
}