Allow font size to a be double (1 digit) instead of an integer.

A previous commit make the font size an integer.  Per Christoph Feck
there are valid reasons to allow x.y font sizes.  This patch restores
that ability.

An update/fix to ebc594cdf6

CCMAIL: christoph@maxiom.de

src/EditProfileDialog.cpp

@@ -452,8 +452,8 @@ void EditProfileDialog::setupAppearancePage(const Profile::Ptr profile)
     _ui->fontPreviewLabel->setFont(profileFont);
     setFontInputValue(profileFont);
 
-    connect(_ui->fontSizeInput, SIGNAL(valueChanged(int)), this,
-            SLOT(setFontSize(int)));
+    connect(_ui->fontSizeInput, SIGNAL(valueChanged(double)), this,
+            SLOT(setFontSize(double)));
     connect(_ui->selectFontButton, SIGNAL(clicked()), this,
             SLOT(showFontDialog()));
 
@@ -1192,10 +1192,10 @@ void EditProfileDialog::showFontDialog()
         fontSelected(currentFont);
     delete dialog.data();
 }
-void EditProfileDialog::setFontSize(int pointSize)
+void EditProfileDialog::setFontSize(double pointSize)
 {
     QFont newFont = _ui->fontPreviewLabel->font();
-    newFont.setPointSize(pointSize);
+    newFont.setPointSizeF(pointSize);
     _ui->fontPreviewLabel->setFont(newFont);
 
     preview(Profile::Font, newFont);
@@ -1204,7 +1204,7 @@ void EditProfileDialog::setFontSize(int pointSize)
 
 void EditProfileDialog::setFontInputValue(const QFont& aFont)
 {
-    _ui->fontSizeInput->setValue(aFont.pointSize());
+    _ui->fontSizeInput->setValue(aFont.pointSizeF());
 }
 
 ColorSchemeViewDelegate::ColorSchemeViewDelegate(QObject* aParent)

src/EditProfileDialog.h

@@ -118,7 +118,7 @@ private slots:
     void silenceSecondsChanged(int);
 
     // appearance page
-    void setFontSize(int pointSize);
+    void setFontSize(double pointSize);
     void setFontInputValue(const QFont&);
     void setAntialiasText(bool enable);
     void setBoldIntense(bool enable);

src/EditProfileDialog.ui

@@ -460,15 +460,18 @@
              </widget>
             </item>
             <item>
-             <widget class="KIntNumInput" name="fontSizeInput">
+             <widget class="KDoubleNumInput" name="fontSizeInput">
               <property name="minimum">
-               <number>0</number>
+               <double>4.000000000000000</double>
               </property>
               <property name="maximum">
-               <number>999</number>
+               <double>999.000000000000000</double>
               </property>
-              <property name="sliderEnabled">
-               <bool>false</bool>
+              <property name="singleStep">
+               <double>1.000000000000000</double>
+              </property>
+              <property name="decimals">
+               <number>1</number>
               </property>
              </widget>
             </item>
@@ -1198,6 +1201,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KDoubleNumInput</class>
+   <extends>QWidget</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KColorButton</class>
    <extends>QPushButton</extends>
@@ -1218,11 +1226,6 @@
    <extends>QSpinBox</extends>
    <header>knuminput.h</header>
   </customwidget>
-  <customwidget>
-   <class>KIntNumInput</class>
-   <extends>QWidget</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KSqueezedTextLabel</class>
    <extends>QLabel</extends>