Native style: add TextArea

Change-Id: Ie8a4ea4ff232fa5aa3064b56aa7ba13f8522590d
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

3 files changed, 146 insertions, 0 deletions

diff --git a/src/imports/nativestyle/items/items.pri b/src/imports/nativestyle/items/items.pri
index 8641adff..1816033f 100644
--- a/src/imports/nativestyle/items/items.pri
+++ b/src/imports/nativestyle/items/items.pri
@@ -10,6 +10,7 @@ HEADERS += \
     $$PWD/qquickstyleitemspinbox.h \
     $$PWD/qquickstyleitemtextfield.h \
     $$PWD/qquickstyleitemframe.h \
+    $$PWD/qquickstyleitemtextarea.h \
 
 SOURCES += \
     $$PWD/qquickstyleitem.cpp \
@@ -21,3 +22,4 @@ SOURCES += \
     $$PWD/qquickstyleitemspinbox.cpp \
     $$PWD/qquickstyleitemtextfield.cpp \
     $$PWD/qquickstyleitemframe.cpp \
+    $$PWD/qquickstyleitemtextarea.cpp \
diff --git a/src/imports/nativestyle/items/qquickstyleitemtextarea.cpp b/src/imports/nativestyle/items/qquickstyleitemtextarea.cpp
new file mode 100644
index 00000000..88dbf065
--- /dev/null
+++ b/src/imports/nativestyle/items/qquickstyleitemtextarea.cpp
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickstyleitemtextarea.h"
+
+QFont QQuickStyleItemTextArea::styleFont(QQuickItem *control)
+{
+    return style()->font(QStyle::CE_ComboBoxLabel, controlSize(control));
+}
+
+void QQuickStyleItemTextArea::connectToControl()
+{
+    QQuickStyleItem::connectToControl();
+    auto textArea = control<QQuickTextArea>();
+    connect(textArea, &QQuickTextArea::readOnlyChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(textArea, &QQuickTextArea::focusChanged, this, &QQuickStyleItem::markImageDirty);
+}
+
+StyleItemGeometry QQuickStyleItemTextArea::calculateGeometry()
+{
+    QStyleOptionFrame styleOption;
+    initStyleOption(styleOption);
+    StyleItemGeometry geometry;
+
+    // There is no CT_TextEdit in QStyle, so we "borrow" CT_LineEdit for now
+    geometry.minimumSize = style()->sizeFromContents(QStyle::CT_LineEdit, &styleOption, QSize(0, 0));
+    geometry.implicitSize = style()->sizeFromContents(QStyle::CT_LineEdit, &styleOption, contentSize());
+    styleOption.rect = QRect(QPoint(0, 0), geometry.implicitSize);
+    geometry.contentRect = style()->subElementRect(QStyle::SE_LineEditContents, &styleOption);
+
+    return geometry;
+}
+
+void QQuickStyleItemTextArea::paintEvent(QPainter *painter)
+{
+    QStyleOptionFrame styleOption;
+    initStyleOption(styleOption);
+    style()->drawPrimitive(QStyle::PE_PanelLineEdit, &styleOption, painter);
+}
+
+void QQuickStyleItemTextArea::initStyleOption(QStyleOptionFrame &styleOption)
+{
+    initStyleOptionBase(styleOption);
+    auto textArea = control<QQuickTextArea>();
+
+    styleOption.lineWidth = 1;
+    styleOption.midLineWidth = 0;
+    styleOption.state |= QStyle::State_Sunken;
+    if (textArea->isReadOnly())
+        styleOption.state |= QStyle::State_ReadOnly;
+}
diff --git a/src/imports/nativestyle/items/qquickstyleitemtextarea.h b/src/imports/nativestyle/items/qquickstyleitemtextarea.h
new file mode 100644
index 00000000..90d83ad7
--- /dev/null
+++ b/src/imports/nativestyle/items/qquickstyleitemtextarea.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKSTYLEITEMTEXTAREA_H
+#define QQUICKSTYLEITEMTEXTAREA_H
+
+#include "qquickstyleitem.h"
+#include <QtQuickTemplates2/private/qquicktextarea_p.h>
+
+class QQuickStyleItemTextArea : public QQuickStyleItem
+{
+    Q_OBJECT
+    QML_NAMED_ELEMENT(TextArea)
+
+public:
+    QFont styleFont(QQuickItem *control) override;
+
+protected:
+    void connectToControl() override;
+    void paintEvent(QPainter *painter) override;
+    StyleItemGeometry calculateGeometry() override;
+
+private:
+    void initStyleOption(QStyleOptionFrame &styleOption);
+};
+
+#endif // QQUICKSTYLEITEMTEXTAREA_H