1 files changed, 130 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp b/tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp
new file mode 100644
index 0000000000..42a5fa7914
--- /dev/null
+++ b/tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp
@@ -0,0 +1,130 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "iconpreviewarea.h"
+
+#include <QGridLayout>
+#include <QLabel>
+#include <QWindow>
+
+//! [0]
+IconPreviewArea::IconPreviewArea(QWidget *parent)
+    : QWidget(parent)
+{
+    QGridLayout *mainLayout = new QGridLayout(this);
+
+    for (int row = 0; row < NumStates; ++row) {
+        stateLabels[row] = createHeaderLabel(IconPreviewArea::iconStateNames().at(row));
+        mainLayout->addWidget(stateLabels[row], row + 1, 0);
+    }
+    Q_ASSERT(NumStates == 2);
+
+    for (int column = 0; column < NumModes; ++column) {
+        modeLabels[column] = createHeaderLabel(IconPreviewArea::iconModeNames().at(column));
+        mainLayout->addWidget(modeLabels[column], 0, column + 1);
+    }
+    Q_ASSERT(NumModes == 4);
+
+    for (int column = 0; column < NumModes; ++column) {
+        for (int row = 0; row < NumStates; ++row) {
+            pixmapLabels[column][row] = createPixmapLabel();
+            mainLayout->addWidget(pixmapLabels[column][row], row + 1, column + 1);
+        }
+    }
+}
+//! [0]
+
+//! [42]
+QList<QIcon::Mode> IconPreviewArea::iconModes()
+{
+    static const QList<QIcon::Mode> result = { QIcon::Normal, QIcon::Active, QIcon::Disabled,
+                                               QIcon::Selected };
+    return result;
+}
+
+QList<QIcon::State> IconPreviewArea::iconStates()
+{
+    static const QList<QIcon::State> result = { QIcon::Off, QIcon::On };
+    return result;
+}
+
+QStringList IconPreviewArea::iconModeNames()
+{
+    static const QStringList result = {tr("Normal"), tr("Active"), tr("Disabled"), tr("Selected")};
+    return result;
+}
+
+QStringList IconPreviewArea::iconStateNames()
+{
+    static const QStringList result = {tr("Off"), tr("On")};
+    return result;
+}
+//! [42]
+
+//! [1]
+void IconPreviewArea::setIcon(const QIcon &icon)
+{
+    this->icon = icon;
+    updatePixmapLabels();
+}
+//! [1]
+
+//! [2]
+void IconPreviewArea::setSize(const QSize &size)
+{
+    if (size != this->size) {
+        this->size = size;
+        updatePixmapLabels();
+    }
+}
+//! [2]
+
+//! [3]
+QLabel *IconPreviewArea::createHeaderLabel(const QString &text)
+{
+    QLabel *label = new QLabel(tr("<b>%1</b>").arg(text));
+    label->setAlignment(Qt::AlignCenter);
+    return label;
+}
+//! [3]
+
+//! [4]
+QLabel *IconPreviewArea::createPixmapLabel()
+{
+    QLabel *label = new QLabel;
+    label->setEnabled(false);
+    label->setAlignment(Qt::AlignCenter);
+    label->setFrameShape(QFrame::Box);
+    label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    label->setBackgroundRole(QPalette::Base);
+    label->setAutoFillBackground(true);
+    label->setMinimumSize(132, 132);
+    return label;
+}
+//! [4]
+
+//! [5]
+void IconPreviewArea::updatePixmapLabels()
+{
+    for (int column = 0; column < NumModes; ++column) {
+        for (int row = 0; row < NumStates; ++row) {
+            const QPixmap pixmap =
+                    icon.pixmap(size, devicePixelRatio(), IconPreviewArea::iconModes().at(column),
+                                IconPreviewArea::iconStates().at(row));
+            QLabel *pixmapLabel = pixmapLabels[column][row];
+            pixmapLabel->setPixmap(pixmap);
+            pixmapLabel->setEnabled(!pixmap.isNull());
+            QString toolTip;
+            if (!pixmap.isNull()) {
+                const QSize actualSize = icon.actualSize(size);
+                toolTip =
+                    tr("Size: %1x%2\nActual size: %3x%4\nDevice pixel ratio: %5")
+                        .arg(size.width()).arg(size.height())
+                        .arg(actualSize.width()).arg(actualSize.height())
+                        .arg(pixmap.devicePixelRatio());
+            }
+            pixmapLabel->setToolTip(toolTip);
+        }
+    }
+}
+//! [5]