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Show at least one row per page

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In theory a font could be so large that no full row would fit on the
allotted space; in that case showing a partial row is better than
nothing and will avoid bugs where -1 wraps around on unsigned exprs.
This commit is contained in:
Maarten ter Huurne 2014-08-10 10:17:01 +02:00
parent 0535f8273b
commit b833f59bb5
2 changed files with 2 additions and 2 deletions
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2
src/textdialog.cpp
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@ -80,7 +80,7 @@ void TextDialog::exec() {
const int fontHeight = gmenu2x->font->getLineSpacing(); const int fontHeight = gmenu2x->font->getLineSpacing();
unsigned int contentY, contentHeight; unsigned int contentY, contentHeight;
tie(contentY, contentHeight) = gmenu2x->getContentArea(); tie(contentY, contentHeight) = gmenu2x->getContentArea();
const unsigned rowsPerPage = contentHeight / fontHeight; const unsigned rowsPerPage = max(contentHeight / fontHeight, 1u);
const unsigned maxFirstRow = const unsigned maxFirstRow =
text.size() < rowsPerPage ? 0 : text.size() - rowsPerPage; text.size() < rowsPerPage ? 0 : text.size() - rowsPerPage;
contentY += (contentHeight % fontHeight) / 2; contentY += (contentHeight % fontHeight) / 2;

2
src/textmanualdialog.cpp
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@ -92,7 +92,7 @@ void TextManualDialog::exec() {
ss >> spagecount; ss >> spagecount;
string pageStatus; string pageStatus;
const unsigned rowsPerPage = 180 / gmenu2x->font->getLineSpacing(); const unsigned rowsPerPage = max(180u / gmenu2x->font->getLineSpacing(), 1u);
unsigned page = 0, firstRow = 0; unsigned page = 0, firstRow = 0;
bool close = false; bool close = false;