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Adjustments to scrollbars

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Sen66
2026-02-13 01:55:52 +01:00
parent 9f1c85913c
commit 3e827194b8
1 changed files with 19 additions and 5 deletions
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24
src/editor.cpp
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@@ -128,10 +128,13 @@ void RcxEditor::setupScintilla() {
m_sci->SendScintilla(QsciScintillaBase::SCI_SETSELFORE, (long)0, (long)0); m_sci->SendScintilla(QsciScintillaBase::SCI_SETSELFORE, (long)0, (long)0);
m_sci->SendScintilla(QsciScintillaBase::SCI_SETSELBACK, (long)0, (long)0); m_sci->SendScintilla(QsciScintillaBase::SCI_SETSELBACK, (long)0, (long)0);
// Auto-size horizontal scrollbar to actual content width (default is fixed 2000px) // Horizontal scrollbar: sized explicitly in applyDocument() to match content
m_sci->SendScintilla(QsciScintillaBase::SCI_SETSCROLLWIDTHTRACKING, 1); m_sci->SendScintilla(QsciScintillaBase::SCI_SETSCROLLWIDTHTRACKING, 0);
m_sci->SendScintilla(QsciScintillaBase::SCI_SETSCROLLWIDTH, 1); m_sci->SendScintilla(QsciScintillaBase::SCI_SETSCROLLWIDTH, 1);
// Vertical scrollbar: don't allow scrolling past the last line
m_sci->SendScintilla(QsciScintillaBase::SCI_SETENDATLASTLINE, 1);
// Editable-field indicator - HIDDEN (no visual) // Editable-field indicator - HIDDEN (no visual)
m_sci->SendScintilla(QsciScintillaBase::SCI_INDICSETSTYLE, m_sci->SendScintilla(QsciScintillaBase::SCI_INDICSETSTYLE,
IND_EDITABLE, 5 /*INDIC_HIDDEN*/); IND_EDITABLE, 5 /*INDIC_HIDDEN*/);
@@ -371,9 +374,20 @@ void RcxEditor::applyDocument(const ComposeResult& result) {
m_sci->setText(result.text); m_sci->setText(result.text);
m_sci->setReadOnly(true); m_sci->setReadOnly(true);
// Reset scroll width so tracking re-measures from current content // Set horizontal scroll width to match the longest line (ignoring trailing spaces)
// (tracking never shrinks automatically — only grows) {
m_sci->SendScintilla(QsciScintillaBase::SCI_SETSCROLLWIDTH, 1); int maxLen = 0;
const QStringList lines = result.text.split(QChar('\n'));
for (const auto& line : lines) {
int len = line.size();
while (len > 0 && line[len - 1] == QChar(' ')) --len;
if (len > maxLen) maxLen = len;
}
QFontMetrics fm(editorFont());
int pixelWidth = fm.horizontalAdvance(QString(maxLen, QChar('0')));
m_sci->SendScintilla(QsciScintillaBase::SCI_SETSCROLLWIDTH,
(unsigned long)qMax(1, pixelWidth));
}
// Force full re-lex to fix stale syntax coloring after edits // Force full re-lex to fix stale syntax coloring after edits
m_sci->SendScintilla(QsciScintillaBase::SCI_COLOURISE, (uintptr_t)0, (long)-1); m_sci->SendScintilla(QsciScintillaBase::SCI_COLOURISE, (uintptr_t)0, (long)-1);