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[poincare] Symbol: createLayout is special for sequence symbols. We add w(n) and w(n+1) to all other sequence symbols.

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This commit is contained in:
Émilie Feral
2019-07-17 14:47:35 +02:00
parent 4c4d420b1f
commit ae750cce28
1 changed files with 15 additions and 27 deletions
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42
poincare/src/symbol.cpp
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@@ -85,33 +85,21 @@ Layout SymbolNode::createLayout(Preferences::PrintFloatMode floatDisplayMode, in
return CodePointLayout::Builder('n');
}
// TODO return Parse(m_name).createLayout() ?
if (strcmp(m_name, "u(n)") == 0) {
return HorizontalLayout::Builder(
CodePointLayout::Builder('u'),
VerticalOffsetLayout::Builder(
CodePointLayout::Builder('n'),
VerticalOffsetLayoutNode::Position::Subscript));
}
if (strcmp(m_name, "u(n+1)") == 0) {
return HorizontalLayout::Builder(
CodePointLayout::Builder('u'),
VerticalOffsetLayout::Builder(
LayoutHelper::String("n+1", 3),
VerticalOffsetLayoutNode::Position::Subscript));
}
if (strcmp(m_name, "v(n)") == 0) {
return HorizontalLayout::Builder(
CodePointLayout::Builder('v'),
VerticalOffsetLayout::Builder(
CodePointLayout::Builder('n'),
VerticalOffsetLayoutNode::Position::Subscript));
}
if (strcmp(m_name, "v(n+1)") == 0) {
return HorizontalLayout::Builder(
CodePointLayout::Builder('v'),
VerticalOffsetLayout::Builder(
LayoutHelper::String("n+1", 3),
VerticalOffsetLayoutNode::Position::Subscript));
// Special case for the symbol names: u(n), u(n+1), v(n), v(n+1), w(n), w(n+1)
const char * sequenceIndex[] = {"n", "n+1"};
for (char sequenceName = 'u'; sequenceName <= 'w'; sequenceName++) {
if (m_name[0] == sequenceName) {
for (int i = 0; i < sizeof(sequenceIndex)/sizeof(char *); i++) {
size_t sequenceIndexLength = strlen(sequenceIndex[i]);
if (m_name[1] == '(' && strncmp(sequenceIndex[i], m_name+2, sequenceIndexLength) == 0 && m_name[2+sequenceIndexLength] == ')' && m_name[3+sequenceIndexLength] == 0) {
return HorizontalLayout::Builder(
CodePointLayout::Builder(sequenceName),
VerticalOffsetLayout::Builder(
LayoutHelper::String(sequenceIndex[i], sequenceIndexLength),
VerticalOffsetLayoutNode::Position::Subscript));
}
}
}
}
return LayoutHelper::String(m_name, strlen(m_name));
}