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Made multi-line text drawing more efficient
Instead of splitting everything at once, split off one line at a time. The code could be more compact but I want to avoid using substr on the very common special case when a string contains no newlines.
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22
src/font.cpp
22
src/font.cpp
@ -66,17 +66,19 @@ void Font::write(Surface *surface, const string &text,
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return;
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}
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if (text.find("\n", 0) == string::npos) {
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size_t pos = text.find('\n', 0);
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if (pos == string::npos) {
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writeLine(surface, text, x, y, halign, valign);
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return;
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}
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vector<string> v;
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split(v, text, "\n");
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for (vector<string>::const_iterator it = v.begin(); it != v.end(); it++) {
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writeLine(surface, *it, x, y, halign, valign);
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y += lineSpacing;
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} else {
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size_t prev = 0;
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do {
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writeLine(surface, text.substr(prev, pos - prev),
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x, y, halign, valign);
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y += lineSpacing;
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prev = pos + 1;
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pos = text.find('\n', prev);
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} while (pos != string::npos);
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writeLine(surface, text.substr(prev), x, y, halign, valign);
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}
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}
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