[graphics/drawy/gsoc2026] src/gui/item: fix: account for mixed fonts and intend width in minWrapWidth

Git commit fcb128151583adc4f20dd7efd32b49e21b065fd5 by Abdelhadi Wael.
Committed on 26/07/2026 at 23:51.
Pushed by mlaurent into branch 'gsoc2026'.

fix: account for mixed fonts and intend width in minWrapWidth

M  +14   -2    src/gui/item/text.cpp
M  +1    -0    src/gui/item/text.hpp

https://invent.kde.org/graphics/drawy/-/commit/fcb128151583adc4f20dd7efd32b49e21b065fd5

diff --git a/src/gui/item/text.cpp b/src/gui/item/text.cpp
index 16d5839e..84c13d22 100644
--- a/src/gui/item/text.cpp
+++ b/src/gui/item/text.cpp
@@ -43,6 +43,7 @@ TextItem::TextItem()
     updateBoundingBox();
 
     QObject::connect(&m_document, &QTextDocument::contentsChanged, &m_document, [this] {
+        m_minWrapWidth = -1;
         updateBoundingBox();
     });
 }
@@ -194,6 +195,7 @@ void TextItem::scaleTextFragments(const qreal scaleY)
         block = block.next();
     }
     m_cursor.endEditBlock();
+    m_minWrapWidth = -1;
 }
 
 void TextItem::drawItem([[maybe_unused]] QPainter &painter, [[maybe_unused]] const QPointF &offset) const
@@ -676,6 +678,16 @@ void TextItem::setWrapWidth(const qreal wrapWidth)
 
 qreal TextItem::minWrapWidth() const
 {
-    const QFontMetricsF metrics{getFont()};
-    return metrics.maxWidth() + 2 * m_document.documentMargin();
+    if (m_minWrapWidth >= 0) {
+        return m_minWrapWidth;
+    }
+
+    const std::unique_ptr<QTextDocument> copy(m_document.clone());
+    QTextOption options = copy->defaultTextOption();
+    options.setWrapMode(QTextOption::WrapAnywhere);
+    copy->setDefaultTextOption(options);
+
+    copy->setTextWidth(0);
+    m_minWrapWidth = copy->size().width() + 2 * m_document.documentMargin();
+    return m_minWrapWidth;
 }
diff --git a/src/gui/item/text.hpp b/src/gui/item/text.hpp
index 1db03a6a..a2d48304 100644
--- a/src/gui/item/text.hpp
+++ b/src/gui/item/text.hpp
@@ -93,6 +93,7 @@ private:
     int m_preeditCursorPos{0};
 
     qreal m_wrapWidth{-1};
+    mutable qreal m_minWrapWidth{-1};
     bool m_isHorizontalResize{false};
 };
 LIBDRAWYGUI_EXPORT QDebug operator<<(QDebug d, const TextItem &t);