Spinner: Add SpinnerWidget

Move it from spinner example and make it a reusable widget.

Change-Id: I3d74ec491f5d1cb7d012551f624cff2c618952ca
Reviewed-by: hjk <hjk@qt.io>

src/libs/solutions/spinner/spinner.cpp

@@ -5,19 +5,21 @@
 
 #include <QApplication>
 #include <QEvent>
+#include <QHBoxLayout>
 #include <QIcon>
+#include <QLabel>
 #include <QPainter>
 #include <QTimer>
 #include <QWidget>
 
 namespace SpinnerSolution {
 
-class OverlayWidget : public QWidget
+class WidgetOverlay : public QWidget
 {
 public:
     using PaintFunction = std::function<void(QWidget *, QPainter &, QPaintEvent *)>;
 
-    explicit OverlayWidget(QWidget *parent = nullptr)
+    explicit WidgetOverlay(QWidget *parent = nullptr)
     {
         setAttribute(Qt::WA_TransparentForMouseEvents);
         if (parent)
@@ -151,11 +153,11 @@ void SpinnerPainter::paint(QPainter &painter, const QRect &rect) const
     painter.restore();
 }
 
-class SpinnerWidget : public OverlayWidget
+class SpinnerOverlay : public WidgetOverlay
 {
 public:
-    explicit SpinnerWidget(SpinnerSize size, QWidget *parent = nullptr)
-        : OverlayWidget(parent)
+    explicit SpinnerOverlay(SpinnerSize size, QWidget *parent = nullptr)
+        : WidgetOverlay(parent)
         , m_paint(size)
     {
         setPaintFunction(
@@ -219,7 +221,7 @@ private:
 */
 Spinner::Spinner(SpinnerSize size, QWidget *parent)
     : QObject(parent)
-    , m_widget(new SpinnerWidget(size, parent)) {}
+    , m_widget(new SpinnerOverlay(size, parent)) {}
 
 /*!
     Sets the size of the spinner to the given \a size.
@@ -263,4 +265,83 @@ void Spinner::setVisible(bool visible)
     m_widget->setVisible(visible);
 }
 
+static QString colorButtonStyleSheet(const QColor &bgColor)
+{
+    QString rc("border-width: 1px; border-radius: 1px; border-color: black; ");
+    rc += bgColor.isValid() ? "border-style: solid; background:" + bgColor.name() + ";"
+                            : QString("border-style: dotted;");
+    return rc;
+}
+
+static QColor stateToColor(SpinnerState state)
+{
+    switch (state) {
+    case SpinnerState::NotRunning: return Qt::gray;
+    case SpinnerState::Running: return Qt::yellow;
+    }
+    return {};
+}
+
+class SpinnerWidgetPrivate : public QLabel
+{
+public:
+    SpinnerWidgetPrivate(QWidget *parent = nullptr)
+        : QLabel(parent)
+        , m_spinner(new Spinner(SpinnerSize::Small, this))
+    {
+        updateState();
+    }
+
+    void setState(SpinnerState state)
+    {
+        if (m_state == state)
+            return;
+        m_state = state;
+        updateState();
+    }
+
+    void setDecorated(bool on)
+    {
+        if (m_decorated == on)
+            return;
+        m_decorated = on;
+        updateState();
+    }
+
+private:
+    void updateState()
+    {
+        const int size = m_decorated ? 26 : 24;
+        setFixedSize(size, size);
+        setStyleSheet(m_decorated ? colorButtonStyleSheet(stateToColor(m_state)) : QString());
+        if (m_state == SpinnerState::Running)
+            m_spinner->show();
+        else
+            m_spinner->hide();
+    }
+    bool m_decorated = true;
+    SpinnerState m_state = SpinnerState::NotRunning;
+    Spinner *m_spinner = nullptr;
+};
+
+SpinnerWidget::SpinnerWidget(QWidget *parent)
+    : QWidget(parent)
+    , d(new SpinnerWidgetPrivate(this))
+{
+    QBoxLayout *layout = new QHBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->addWidget(d);
+    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+}
+
+void SpinnerWidget::setState(SpinnerState state)
+{
+    d->setState(state);
+}
+
+void SpinnerWidget::setDecorated(bool on)
+{
+    d->setDecorated(on);
+}
+
 } // namespace SpinnerSolution

src/libs/solutions/spinner/spinner.h

@@ -6,7 +6,7 @@
 
 #include "spinner_global.h"
 
-#include <QObject>
+#include <QWidget>
 
 namespace SpinnerSolution {
 
@@ -15,11 +15,15 @@ Q_NAMESPACE_EXPORT(SPINNER_EXPORT)
 enum class SpinnerSize { Small, Medium, Large };
 Q_ENUM_NS(SpinnerSize)
 
+enum class SpinnerState { NotRunning, Running };
+Q_ENUM_NS(SpinnerState)
+
 // TODO: SpinnerOverlay and SpinnerWidget?
 
 class SPINNER_EXPORT Spinner : public QObject
 {
     Q_OBJECT
+
 public:
     explicit Spinner(SpinnerSize size, QWidget *parent = nullptr);
     void setSize(SpinnerSize size);
@@ -29,7 +33,20 @@ public:
     void setVisible(bool visible);
 
 private:
-    class SpinnerWidget *m_widget = nullptr;
+    class SpinnerOverlay *m_widget = nullptr;
+};
+
+class SPINNER_EXPORT SpinnerWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit SpinnerWidget(QWidget *parent = nullptr);
+    void setState(SpinnerState state);
+    void setDecorated(bool on);
+
+private:
+    class SpinnerWidgetPrivate *d;
 };
 
 } // namespace SpinnerSolution

tests/manual/spinner/main.cpp

@@ -14,82 +14,12 @@
 
 using namespace SpinnerSolution;
 
-enum class State {
-    NotRunning,
-    Running
-};
-
-static QString colorButtonStyleSheet(const QColor &bgColor)
-{
-    QString rc("border-width: 2px; border-radius: 2px; border-color: black; ");
-    rc += bgColor.isValid() ? "border-style: solid; background:" + bgColor.name() + ";"
-                            : QString("border-style: dotted;");
-    return rc;
-}
-
-static QColor stateToColor(State state)
-{
-    switch (state) {
-    case State::NotRunning: return Qt::gray;
-    case State::Running: return Qt::yellow;
-    }
-    return {};
-}
-
-class StateIndicator : public QLabel
-{
-public:
-    StateIndicator(QWidget *parent = nullptr)
-        : QLabel(parent)
-    {
-        setFixedSize(30, 30);
-        m_spinner = new Spinner(SpinnerSize::Small, this);
-        m_spinner->hide();
-        updateState();
-    }
-
-    void setState(State state)
-    {
-        if (m_state == state)
-            return;
-        m_state = state;
-        updateState();
-    }
-
-private:
-    void updateState()
-    {
-        setStyleSheet(colorButtonStyleSheet(stateToColor(m_state)));
-        if (m_state == State::Running)
-            m_spinner->show();
-        else
-            m_spinner->hide();
-    }
-    State m_state = State::NotRunning;
-    Spinner *m_spinner = nullptr;
-};
-
-class StateWidget : public QWidget
-{
-public:
-    StateWidget() : m_stateIndicator(new StateIndicator(this)) {
-        QBoxLayout *layout = new QHBoxLayout(this);
-        layout->setContentsMargins(0, 0, 0, 0);
-        layout->addWidget(m_stateIndicator);
-        setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
-    }
-    void setState(State state) { m_stateIndicator->setState(state); }
-
-protected:
-    StateIndicator *m_stateIndicator = nullptr;
-};
-
 QGroupBox *createGroupBox(SpinnerSize size, QWidget *widget)
 {
     const QMetaEnum spinnerSize = QMetaEnum::fromType<SpinnerSize>();
     QGroupBox *groupBox = new QGroupBox(spinnerSize.valueToKey(int(size)));
 
-    StateWidget *stateWidget = new StateWidget;
+    SpinnerWidget *spinnerWidget = new SpinnerWidget;
     QToolButton *startButton = new QToolButton;
     startButton->setText("Start");
     QToolButton *stopButton = new QToolButton;
@@ -97,7 +27,7 @@ QGroupBox *createGroupBox(SpinnerSize size, QWidget *widget)
 
     QVBoxLayout *mainLayout = new QVBoxLayout(groupBox);
     QHBoxLayout *topLayout = new QHBoxLayout();
-    topLayout->addWidget(stateWidget);
+    topLayout->addWidget(spinnerWidget);
     topLayout->addWidget(startButton);
     topLayout->addWidget(stopButton);
     topLayout->addStretch();
@@ -108,12 +38,12 @@ QGroupBox *createGroupBox(SpinnerSize size, QWidget *widget)
     spinner->hide(); // TODO: make the default hidden?
 
     QObject::connect(startButton, &QAbstractButton::clicked, groupBox, [=] {
-        stateWidget->setState(State::Running);
+        spinnerWidget->setState(SpinnerState::Running);
         spinner->show();
         widget->setEnabled(false);
     });
     QObject::connect(stopButton, &QAbstractButton::clicked, groupBox, [=] {
-        stateWidget->setState(State::NotRunning);
+        spinnerWidget->setState(SpinnerState::NotRunning);
         spinner->hide();
         widget->setEnabled(true);
     });