refacto ring button

the button triggering the file selection now stays in a
correct shape when canceling the selection

Change-Id: I4384f3f815ec6ded857cf1e2d2b8901ae1f7f27d
Reviewed-by: Anthony Léonard <anthony.leonard@savoirfairelinux.com>

ringbutton.cpp

@@ -36,10 +36,19 @@ RingButton::~RingButton()
 void
 RingButton::setText(const QString& text)
 {
+    if (! text.isEmpty() && ! text.isNull()) {
         ui->button->setText(text);
         ui->button->resize(ui->button->sizeHint().width(),
                            ui->button->sizeHint().height());
+        path_ = text;
     }
+}
+
+QString RingButton::text()
+{
+    return path_;
+}
+
 
 void
 RingButton::mousePressEvent(QMouseEvent* event)

ringbutton.h

@@ -31,12 +31,12 @@ public:
     explicit RingButton(QWidget* parent = 0);
     ~RingButton();
     void setText(const QString& text);
-
-protected:
-    void mousePressEvent(QMouseEvent* event);
+    QString text();
 
 private:
     Ui::RingButton* ui;
+    QString path_ {};
+    void mousePressEvent(QMouseEvent* event);
 
 signals:
     void clicked() const;