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https://github.com/UpsilonNumworks/Upsilon.git
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109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
#include "sequence_toolbox.h"
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#include "../sequence_store.h"
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#include <poincare/layout_helper.h>
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#include <assert.h>
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#include <poincare/code_point_layout.h>
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#include <poincare/vertical_offset_layout.h>
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using namespace Poincare;
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namespace Sequence {
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SequenceToolbox::SequenceToolbox() :
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MathToolbox(),
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m_addedCellLayout{},
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m_numberOfAddedCells(0)
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{
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}
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bool SequenceToolbox::handleEvent(Ion::Events::Event event) {
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if (selectedRow() < m_numberOfAddedCells && stackDepth() == 0) {
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if (event == Ion::Events::OK || event == Ion::Events::EXE) {
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return selectAddedCell(selectedRow());
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}
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return false;
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}
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return MathToolbox::handleEventForRow(event, mathToolboxIndex(selectedRow()));
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}
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int SequenceToolbox::numberOfRows() const {
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if (stackDepth() == 0) {
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return MathToolbox::numberOfRows()+m_numberOfAddedCells;
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}
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return MathToolbox::numberOfRows();
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}
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HighlightCell * SequenceToolbox::reusableCell(int index, int type) {
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assert(type < 3);
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assert(index >= 0);
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assert(index < k_maxNumberOfDisplayedRows);
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if (type == 2) {
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return &m_addedCells[index];
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}
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return MathToolbox::reusableCell(index, type);
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}
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void SequenceToolbox::willDisplayCellForIndex(HighlightCell * cell, int index) {
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if (typeAtLocation(0, index) == 2) {
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static_cast<ExpressionTableCell *>(cell)->setLayout(m_addedCellLayout[index]);
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cell->reloadCell();
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return;
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}
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MathToolbox::willDisplayCellForIndex(cell, mathToolboxIndex(index));
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}
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int SequenceToolbox::typeAtLocation(int i, int j) {
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if (stackDepth() == 0 && j < m_numberOfAddedCells) {
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return 2;
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}
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return MathToolbox::typeAtLocation(i,mathToolboxIndex(j));
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}
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void SequenceToolbox::buildExtraCellsLayouts(const char * sequenceName, int recurrenceDepth) {
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/* If recurrenceDepth < 0, the user is setting the initial conditions so we
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* do not want to add any cell in the toolbox. */
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if (recurrenceDepth < 0) {
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m_numberOfAddedCells = 0;
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return;
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}
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/* The cells added reprensent the sequence at smaller ranks than its depth
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* and the other sequence at ranks smaller or equal to the depth, ie:
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* if the sequence is u(n+1), we add cells u(n), v(n), v(n+1), w(n), w(n+1).
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* There is a special case for double recurrent sequences because we do not
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* want to parse symbols u(n+2), v(n+2) or w(n+2). */
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m_numberOfAddedCells = 0;
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int sequenceIndex = SequenceStore::sequenceIndexForName(sequenceName[0]);
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for (int i = 0; i < MaxNumberOfSequences; i++) {
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for (int j = 0; j < recurrenceDepth+1; j++) {
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// When defining u(n+1) for ex, don't add [u|v|w](n+2) or u(n+1)
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if (j == 2 || (j == recurrenceDepth && sequenceIndex == i)) {
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continue;
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}
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const char * indice = j == 0 ? "n" : "n+1";
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m_addedCellLayout[m_numberOfAddedCells++] = HorizontalLayout::Builder(
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CodePointLayout::Builder(SequenceStore::k_sequenceNames[i][0], KDFont::LargeFont),
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VerticalOffsetLayout::Builder(LayoutHelper::String(indice, strlen(indice), KDFont::LargeFont), VerticalOffsetLayoutNode::Position::Subscript)
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);
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}
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}
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}
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bool SequenceToolbox::selectAddedCell(int selectedRow){
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constexpr int bufferSize = 10;
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char buffer[bufferSize];
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m_addedCellLayout[selectedRow].serializeParsedExpression(buffer, bufferSize);
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sender()->handleEventWithText(buffer);
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Container::activeApp()->dismissModalViewController();
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return true;
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}
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int SequenceToolbox::mathToolboxIndex(int index) {
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int indexMathToolbox = index;
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if (stackDepth() == 0) {
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indexMathToolbox = index - m_numberOfAddedCells;
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}
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return indexMathToolbox;
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}
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}
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