From 519a2ad6985fafb8b84c32c7a2005fe989d96fcc Mon Sep 17 00:00:00 2001
From: shaojun <wangshaojun@uniontech.com>
Date: Wed, 22 Feb 2023 13:42:53 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=9B=BD=E6=A0=87=E8=B6=85=E5=A4=A7?=
 =?UTF-8?q?=E5=AD=97=E7=AC=A6=E9=9B=86=E6=96=87=E5=AD=97=E6=98=BE=E7=A4=BA?=
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修改字体计算高度方法

Log:
Bug: https://pms.uniontech.com/bug-view-187789.html
Influence: 通知中心和通知界面在不同字体下的布局。
Change-Id: I463948052b64becad4c623a22a043b6f72642d4c
---
 dde-osd/notification/appbodylabel.cpp | 14 ++++++++++----
 dde-osd/notification/appbodylabel.h   |  1 +
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/dde-osd/notification/appbodylabel.cpp b/dde-osd/notification/appbodylabel.cpp
index 071b1ff4..fecbb84f 100644
--- a/dde-osd/notification/appbodylabel.cpp
+++ b/dde-osd/notification/appbodylabel.cpp
@@ -19,6 +19,10 @@ AppBodyLabel::AppBodyLabel(QWidget *parent)
     , m_alignment(Qt::AlignVCenter)
 {
     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+    connect(qApp, &QGuiApplication::fontChanged, this, [&] {
+        m_fontHeight = fontMetrics().size(Qt::TextSingleLine, text()).height();
+    });
 }
 
 void AppBodyLabel::setText(const QString &text)
@@ -32,6 +36,8 @@ void AppBodyLabel::setText(const QString &text)
 #endif
 
     m_text = text;
+    m_fontHeight = fontMetrics().size(Qt::TextSingleLine, text).height();
+
     updateLineCount();
     update();
 }
@@ -96,12 +102,12 @@ static int drawText(QPainter *painter, const QRectF &rect, int lineHeight, QText
 
 QSize AppBodyLabel::sizeHint() const
 {
-    return QSize(width(), fontMetrics().height() * m_lineCount);
+    return QSize(width(), m_fontHeight * m_lineCount);
 }
 
 QSize AppBodyLabel::minimumSizeHint() const
 {
-    QSize size(width(), fontMetrics().height());
+    QSize size(width(), m_fontHeight);
 
     return size;
 }
@@ -162,7 +168,7 @@ void AppBodyLabel::paintEvent(QPaintEvent *event)
     layout.setTextOption(option);
 
     QRect rect(this->rect());
-    int lineHeight = fontMetrics().height();
+    int lineHeight = m_fontHeight;
     int lineCount = m_lineCount;
 
     while (lineCount > 1 && lineCount * lineHeight > height()) {
@@ -185,5 +191,5 @@ void AppBodyLabel::updateLineCount()
 
     layout.setTextOption(option);
 
-    m_lineCount = drawText(nullptr, QRectF(QPointF(0, 0), QSizeF(width(), INT_MAX)), fontMetrics().height(), &layout, Qt::ElideNone);
+    m_lineCount = drawText(nullptr, QRectF(QPointF(0, 0), QSizeF(width(), INT_MAX)), m_fontHeight, &layout, Qt::ElideNone);
 }
diff --git a/dde-osd/notification/appbodylabel.h b/dde-osd/notification/appbodylabel.h
index e05ea9b8..991bc136 100644
--- a/dde-osd/notification/appbodylabel.h
+++ b/dde-osd/notification/appbodylabel.h
@@ -42,6 +42,7 @@ private:
     QString m_text;
     int m_lineCount = 0;
     Qt::Alignment m_alignment;
+    int m_fontHeight = 0;
 };
 
 #endif // APPBODYLABEL_H
-- 
2.20.1