sum_layout.cpp
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#include "sum_layout.h"
#include "char_layout.h"
#include "horizontal_layout.h"
namespace Poincare {
const uint8_t symbolPixel[SumLayout::k_symbolHeight][SumLayout::k_symbolWidth] = {
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0xFF, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
};
ExpressionLayout * SumLayout::clone() const {
SumLayout * layout = new SumLayout(const_cast<SumLayout *>(this)->argumentLayout(), const_cast<SumLayout *>(this)->lowerBoundLayout(), const_cast<SumLayout *>(this)->upperBoundLayout(), true);
return layout;
}
int SumLayout::writeTextInBuffer(char * buffer, int bufferSize) const {
return SequenceLayout::writeDerivedClassInBuffer("sum", buffer, bufferSize);
}
void SumLayout::render(KDContext * ctx, KDPoint p, KDColor expressionColor, KDColor backgroundColor) {
// Computes sizes.
KDSize upperBoundSize = upperBoundLayout()->size();
KDSize lowerBoundSizeWithNEquals = HorizontalLayout(new CharLayout('n'), new CharLayout('='), lowerBoundLayout()->clone(), false).size();
// Render the Sum symbol.
KDColor workingBuffer[k_symbolWidth*k_symbolHeight];
KDRect symbolFrame(p.x() + max(max(0, (upperBoundSize.width()-k_symbolWidth)/2), (lowerBoundSizeWithNEquals.width()-k_symbolWidth)/2),
p.y() + max(upperBoundSize.height()+k_boundHeightMargin, argumentLayout()->baseline()-(k_symbolHeight+1)/2),
k_symbolWidth, k_symbolHeight);
ctx->blendRectWithMask(symbolFrame, expressionColor, (const uint8_t *)symbolPixel, (KDColor *)workingBuffer);
// Render the "n=" and the parentheses.
SequenceLayout::render(ctx, p, expressionColor, backgroundColor);
}
}