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Just show "Invalid formula" if needed.

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This commit is contained in:
John Preston
2026-05-26 15:25:17 +04:00
parent fb3c415427
commit a3fa0178fd
2 changed files with 6 additions and 13 deletions
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Telegram/SourceFiles/iv/markdown/iv_markdown_article_layout_blocks.cpp
+6 -4
View File
@@ -797,15 +797,17 @@ LaidOutBlock LayoutDisplayMathBlock(
const auto &fallbackPadding = st.displayMath.fallbackPadding;
const auto fallbackPaddingWidth = fallbackPadding.left()
+ fallbackPadding.right();
const auto fallbackText = formula
? formula->measured.fallbackText
: prepared.formulaTex.trimmed();
auto fallbackText = TextWithEntities::Simple(u"Invalid formula"_q);
fallbackText.entities.push_back(EntityInText(
EntityType::Italic,
0,
fallbackText.text.size()));
block.textWidth = std::max(contentWidth - fallbackPaddingWidth, 1);
block.fallbackLeaf = Ui::Text::String(
TextMinResizeWidth(block.textWidth));
block.fallbackLeaf.setMarkedText(
st.displayMath.fallbackStyle,
TextWithEntities::Simple(fallbackText),
std::move(fallbackText),
kIvMarkedTextOptions);
block.textWidth = std::min(
block.textWidth,
Telegram/SourceFiles/iv/markdown/iv_markdown_article_paint.cpp
-9
View File
@@ -1172,15 +1172,6 @@ void PaintDisplayMathBlock(
p.pen().color()));
}
if (!rendered.success) {
const auto radius = st.displayMath.fallbackRadius;
p.setPen(Qt::NoPen);
p.setBrush(paintSt.displayMath.fallbackBg->c);
if (radius > 0) {
auto hq = PainterHighQualityEnabler(p);
p.drawRoundedRect(block.formulaRect, radius, radius);
} else {
p.fillRect(block.formulaRect, paintSt.displayMath.fallbackBg->c);
}
p.setPen(paintSt.textColor->c);
PaintTextLeaf(
p,