QmlProfiler: Simplify painting of state widget

There is no reason to have an elaborate painting routine with rounded
corners and shadows. It doesn't fit the new "flat" paradigm and it's
unnecessarily complex.

Change-Id: I83ace95fdcccfc4cc41b17640a10154f7f64f89c
Reviewed-by: Alessandro Portale <alessandro.portale@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilerstatewidget.cpp

@@ -45,7 +45,6 @@ class QmlProfilerStateWidget::QmlProfilerStateWidgetPrivate
 
     QLabel *text;
     QProgressBar *progressBar;
-    QPixmap shadowPic;
 
     QmlProfilerStateManager *m_profilerState;
     QmlProfilerModelManager *m_modelManager;
@@ -53,18 +52,18 @@ class QmlProfilerStateWidget::QmlProfilerStateWidgetPrivate
 
 QmlProfilerStateWidget::QmlProfilerStateWidget(QmlProfilerStateManager *stateManager,
                                 QmlProfilerModelManager *modelManager, QWidget *parent)
-    : QWidget(parent), d(new QmlProfilerStateWidgetPrivate(this))
+    : QFrame(parent), d(new QmlProfilerStateWidgetPrivate(this))
 {
     setObjectName(QLatin1String("QML Profiler State Display"));
+    setFrameStyle(QFrame::StyledPanel);
 
     // UI elements
     QVBoxLayout *layout = new QVBoxLayout(this);
     resize(200,70);
 
-    d->shadowPic.load(QLatin1String(":/timeline/dialog_shadow.png"));
-
     d->text = new QLabel(this);
     d->text->setAlignment(Qt::AlignCenter);
+    setAutoFillBackground(true);
     layout->addWidget(d->text);
 
     d->progressBar = new QProgressBar(this);
@@ -101,76 +100,6 @@ void QmlProfilerStateWidget::reposition()
     move(parentWidget->width()/2 - width()/2, parentWidget->height()/3 - height()/2);
 }
 
-void QmlProfilerStateWidget::paintEvent(QPaintEvent *event)
-{
-    QWidget::paintEvent(event);
-
-    QPainter painter(this);
-    painter.save();
-
-    // Shadow
-    // there is no actual qpainter borderimage, hacking it here
-    int borderWidth = 4;
-
-    // topleft
-    painter.drawPixmap(QRect(0, 0, borderWidth, borderWidth),
-                      d->shadowPic,
-                      QRect(0, 0, borderWidth, borderWidth));
-    // topright
-    painter.drawPixmap(QRect(width()-borderWidth, 0, borderWidth, borderWidth),
-                      d->shadowPic,
-                      QRect(d->shadowPic.width()-borderWidth, 0, borderWidth, borderWidth));
-    // bottomleft
-    painter.drawPixmap(QRect(0, height()-borderWidth, borderWidth, borderWidth),
-                      d->shadowPic,
-                      QRect(0, d->shadowPic.height()-borderWidth, borderWidth, borderWidth));
-    // bottomright
-    painter.drawPixmap(QRect(width()-borderWidth, height()-borderWidth, borderWidth, borderWidth),
-                      d->shadowPic,
-                      QRect(d->shadowPic.width()-borderWidth,
-                            d->shadowPic.height()-borderWidth,
-                            borderWidth,
-                            borderWidth));
-    // top
-    painter.drawPixmap(QRect(borderWidth, 0, width()-2*borderWidth, borderWidth),
-                      d->shadowPic,
-                      QRect(borderWidth, 0, d->shadowPic.width()-2*borderWidth, borderWidth));
-    // bottom
-    painter.drawPixmap(QRect(borderWidth, height()-borderWidth, width()-2*borderWidth, borderWidth),
-                      d->shadowPic,
-                      QRect(borderWidth,
-                            d->shadowPic.height()-borderWidth,
-                            d->shadowPic.width()-2*borderWidth,
-                            borderWidth));
-    // left
-    painter.drawPixmap(QRect(0, borderWidth, borderWidth, height()-2*borderWidth),
-                      d->shadowPic,
-                      QRect(0, borderWidth, borderWidth, d->shadowPic.height()-2*borderWidth));
-    // right
-    painter.drawPixmap(QRect(width()-borderWidth, borderWidth, borderWidth, height()-2*borderWidth),
-                      d->shadowPic,
-                      QRect(d->shadowPic.width()-borderWidth,
-                            borderWidth,
-                            borderWidth,
-                            d->shadowPic.height()-2*borderWidth));
-    // center
-    painter.drawPixmap(QRect(borderWidth, borderWidth, width()-2*borderWidth, height()-2*borderWidth),
-                      d->shadowPic,
-                      QRect(borderWidth,
-                            borderWidth,
-                            d->shadowPic.width()-2*borderWidth,
-                            d->shadowPic.height()-2*borderWidth));
-
-
-    // Background
-    painter.setBrush(Utils::creatorTheme()->color(Utils::Theme::BackgroundColorNormal));
-    painter.drawRoundedRect(QRect(borderWidth, 0, width()-2*borderWidth, height()-borderWidth), 6, 6);
-
-    // restore painter
-    painter.restore();
-
-}
-
 void QmlProfilerStateWidget::showText(const QString &text, bool showProgress)
 {
     setVisible(true);

src/plugins/qmlprofiler/qmlprofilerstatewidget.h

@@ -28,12 +28,12 @@
 #include "qmlprofilerstatemanager.h"
 #include "qmlprofilermodelmanager.h"
 
-#include <QWidget>
+#include <QFrame>
 
 namespace QmlProfiler {
 namespace Internal {
 
-class QmlProfilerStateWidget : public QWidget
+class QmlProfilerStateWidget : public QFrame
 {
     Q_OBJECT
 public:
@@ -46,9 +46,6 @@ private slots:
     void updateDisplay();
     void reposition();
 
-protected:
-    void paintEvent(QPaintEvent *event);
-
 private:
     class QmlProfilerStateWidgetPrivate;
     QmlProfilerStateWidgetPrivate *d;