From 5ececa66d5cd346d4fb6433126ddf51d952e1133 Mon Sep 17 00:00:00 2001
From: Wladimir Leuschner <wladimir.leuschner@qt.io>
Date: Thu, 13 Jul 2023 15:20:35 +0200
Subject: [PATCH] Introduce AccentColored LineEdit to QWindows11Style

Introduce a rounded LineEdit, which is highlighted in AccentColor when
active.

Change-Id: Ia836ce8646ec0f8519ac8816d8231440a630b610
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
---
 .../styles/modernwindows/qwindows11style.cpp  | 38 +++++++++++++++++++
 .../styles/modernwindows/qwindows11style_p.h  |  2 +
 2 files changed, 40 insertions(+)

diff --git a/src/plugins/styles/modernwindows/qwindows11style.cpp b/src/plugins/styles/modernwindows/qwindows11style.cpp
index c14a84c20f..f3aa0bcdb0 100644
--- a/src/plugins/styles/modernwindows/qwindows11style.cpp
+++ b/src/plugins/styles/modernwindows/qwindows11style.cpp
@@ -143,6 +143,43 @@ void QWindows11Style::drawComplexControl(ComplexControl control, const QStyleOpt
     painter->restore();
 }
 
+void QWindows11Style::drawPrimitive(PrimitiveElement element, const QStyleOption *option,
+                                    QPainter *painter,
+                                    const QWidget *widget) const {
+    int state = option->state;
+    painter->save();
+    painter->setRenderHint(QPainter::Antialiasing);
+    switch (element) {
+    case PE_PanelLineEdit:
+        if (const auto *panel = qstyleoption_cast<const QStyleOptionFrame *>(option)) {
+            QBrush fillColor = state & State_MouseOver && !(state & State_HasFocus) ? QBrush(subtleHighlightColor) : option->palette.brush(QPalette::Base);
+            painter->setBrush(fillColor);
+            painter->setPen(Qt::NoPen);
+            painter->drawRoundedRect(option->rect, secondLevelRoundingRadius, secondLevelRoundingRadius);
+            if (panel->lineWidth > 0)
+                proxy()->drawPrimitive(PE_FrameLineEdit, panel, painter, widget);
+        }
+        break;
+    case PE_FrameLineEdit: {
+        painter->setBrush(Qt::NoBrush);
+        painter->setPen(QPen(frameColorLight));
+        painter->drawRoundedRect(option->rect, secondLevelRoundingRadius, secondLevelRoundingRadius);
+        QRegion clipRegion = option->rect;
+        clipRegion -= option->rect.adjusted(2, 2, -2, -2);
+        painter->setClipRegion(clipRegion);
+        QColor lineColor = state & State_HasFocus ? option->palette.accent().color() : QColor(0,0,0);
+        painter->setPen(QPen(lineColor));
+        painter->drawLine(option->rect.bottomLeft() + QPoint(1,0), option->rect.bottomRight() + QPoint(-1,0));
+        if (state & State_HasFocus)
+            painter->drawLine(option->rect.bottomLeft() + QPoint(2,1), option->rect.bottomRight() + QPoint(-2,1));
+    }
+        break;
+    default:
+        QWindowsVistaStyle::drawPrimitive(element, option, painter, widget);;
+    }
+    painter->restore();
+}
+
 void QWindows11Style::polish(QWidget* widget)
 {
     QWindowsVistaStyle::polish(widget);
@@ -164,4 +201,5 @@ void QWindows11Style::polish(QWidget* widget)
     }
 }
 
+
 QT_END_NAMESPACE
diff --git a/src/plugins/styles/modernwindows/qwindows11style_p.h b/src/plugins/styles/modernwindows/qwindows11style_p.h
index 725a488465..6ff014d252 100644
--- a/src/plugins/styles/modernwindows/qwindows11style_p.h
+++ b/src/plugins/styles/modernwindows/qwindows11style_p.h
@@ -32,6 +32,8 @@ public:
 
     void drawComplexControl(ComplexControl control, const QStyleOptionComplex *option,
                             QPainter *painter, const QWidget *widget) const override;
+    void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
+                  QPainter *painter, const QWidget *widget) const override;
     void polish(QWidget* widget) override;
 protected:
     QWindows11Style(QWindows11StylePrivate &dd);