add test coverage for qgscolorramp's invert() function

Author: nirvn

python/gui/qgscolorrampbutton.sip

@@ -15,14 +15,6 @@ class QgsColorRampButton : QToolButton
 
   public:
 
-    /** Specifies the behaviour when the button is clicked
-     */
-    enum Behaviour
-    {
-      ShowDialog, /*!< show a color picker dialog when clicked */
-      SignalOnly /*!< emit colorClicked signal only, no dialog */
-    };
-
     /** Construct a new color ramp button.
      * @param parent The parent QWidget for the dialog
      * @param dialogTitle The title to show in the color ramp dialog
@@ -77,19 +69,6 @@ class QgsColorRampButton : QToolButton
      */
     bool showMenu() const;
 
-    /** Sets the behaviour for when the button is clicked. The default behaviour is to show
-     * a color ramp dialog.
-     * @param behaviour behaviour when button is clicked
-     * @see behaviour
-     */
-    void setBehaviour( const Behaviour behaviour );
-
-    /** Returns the behaviour for when the button is clicked.
-     * @returns behaviour when button is clicked
-     * @see setBehaviour
-     */
-    Behaviour behaviour() const;
-
     /** Sets the default color ramp for the button, which is shown in the button's drop down menu for the
      * "default color ramp" option.
      * @param colorramp default color ramp for the button. Set to a null pointer to disable the default color
@@ -216,14 +195,6 @@ class QgsColorRampButton : QToolButton
      */
     void colorRampChanged();
 
-    /** Emitted when the button is clicked, if the button's behaviour is set to SignalOnly
-     * @param colorramp Button's current color ramp
-     * @see setBehaviour
-     * @see behaviour
-     * @note may not be available in Python bindings on some platforms
-     */
-    void colorRampClicked( const QgsColorRamp* colorramp );
-
   protected:
 
     bool event( QEvent *e );

src/gui/qgscolorrampbutton.cpp

@@ -36,7 +36,6 @@
 
 QgsColorRampButton::QgsColorRampButton( QWidget *parent, const QString& dialogTitle )
     : QToolButton( parent )
-    , mBehaviour( QgsColorRampButton::ShowDialog )
     , mColorRampDialogTitle( dialogTitle.isEmpty() ? tr( "Select Color Ramp" ) : dialogTitle )
     , mShowGradientOnly( false )
     , mColorRamp( nullptr )
@@ -227,21 +226,13 @@ QPixmap QgsColorRampButton::createMenuIcon( QgsColorRamp* colorramp )
 
 void QgsColorRampButton::buttonClicked()
 {
-  switch ( mBehaviour )
+  if ( !isRandomColorRamp() )
   {
-    case ShowDialog:
-      if ( !isRandomColorRamp() )
-      {
-        showColorRampDialog();
-      }
-      else
-      {
-        QToolButton::showMenu();
-      }
-      return;
-    case SignalOnly:
-      emit colorRampClicked( mColorRamp );
-      return;
+    showColorRampDialog();
+  }
+  else
+  {
+    QToolButton::showMenu();
   }
 }
 
@@ -535,11 +526,6 @@ void QgsColorRampButton::setShowMenu( const bool showMenu )
   setButtonBackground( mColorRamp );
 }
 
-void QgsColorRampButton::setBehaviour( const QgsColorRampButton::Behaviour behaviour )
-{
-  mBehaviour = behaviour;
-}
-
 void QgsColorRampButton::setDefaultColorRamp( QgsColorRamp* colorramp )
 {
   delete mDefaultColorRamp;

src/gui/qgscolorrampbutton.h

@@ -35,24 +35,14 @@ class QgsPanelWidget;
 class GUI_EXPORT QgsColorRampButton : public QToolButton
 {
     Q_OBJECT
-    Q_ENUMS( Behaviour )
     Q_PROPERTY( QString colorRampDialogTitle READ colorRampDialogTitle WRITE setColorRampDialogTitle )
     Q_PROPERTY( bool acceptLiveUpdates READ acceptLiveUpdates WRITE setAcceptLiveUpdates )
     Q_PROPERTY( bool showMenu READ showMenu WRITE setShowMenu )
-    Q_PROPERTY( Behaviour behaviour READ behaviour WRITE setBehaviour )
     Q_PROPERTY( QgsColorRamp* defaultColorRamp READ defaultColorRamp WRITE setDefaultColorRamp )
     Q_PROPERTY( QString context READ context WRITE setContext )
 
   public:
 
-    /** Specifies the behaviour when the button is clicked
-     */
-    enum Behaviour
-    {
-      ShowDialog = 0, //!< Show a color ramp dialog when clicked
-      SignalOnly //!< Emit colorRampClicked signal only, no dialog
-    };
-
     /** Construct a new color ramp button.
      * @param parent The parent QWidget for the dialog
      * @param dialogTitle The title to show in the color ramp dialog
@@ -107,19 +97,6 @@ class GUI_EXPORT QgsColorRampButton : public QToolButton
      */
     bool showMenu() const { return menu() ? true : false; }
 
-    /** Sets the behaviour for when the button is clicked. The default behaviour is to show
-     * a color ramp dialog.
-     * @param behaviour behaviour when button is clicked
-     * @see behaviour
-     */
-    void setBehaviour( const Behaviour behaviour );
-
-    /** Returns the behaviour for when the button is clicked.
-     * @returns behaviour when button is clicked
-     * @see setBehaviour
-     */
-    Behaviour behaviour() const { return mBehaviour; }
-
     /** Sets the default color ramp for the button, which is shown in the button's drop down menu for the
      * "default color ramp" option.
      * @param colorramp default color ramp for the button. Set to a null pointer to disable the default color
@@ -250,13 +227,6 @@ class GUI_EXPORT QgsColorRampButton : public QToolButton
      */
     void colorRampChanged();
 
-    /** Emitted when the button is clicked, if the button's behaviour is set to SignalOnly
-     * @param colorramp Button's current color ramp
-     * @see setBehaviour
-     * @see behaviour
-     */
-    void colorRampClicked( const QgsColorRamp* colorramp );
-
   protected:
 
     bool event( QEvent *e ) override;
@@ -271,7 +241,6 @@ class GUI_EXPORT QgsColorRampButton : public QToolButton
 
   private:
 
-    Behaviour mBehaviour;
     QString mColorRampDialogTitle;
     bool mShowGradientOnly;
     QgsColorRamp* mColorRamp;

tests/src/python/test_qgsvectorcolorramp.py

@@ -161,6 +161,12 @@ def testQgsVectorGradientRampV2(self):
         self.assertEqual(s[3].offset, 0.8)
         self.assertEqual(s[3].color, QColor(50, 20, 10))
 
+        # test invert function
+        r.invert()
+        self.assertEqual(r.color(0), QColor(0, 200, 0))
+        self.assertEqual(r.color(1), QColor(200, 0, 0))
+        self.assertEqual(r.color(0.2), QColor(50, 20, 10))
+
     def testQgsLimitedRandomColorRampV2(self):
         # test random color ramp
         r = QgsLimitedRandomColorRamp(5)
@@ -310,6 +316,11 @@ def testQgsPresetSchemeColorRamp(self):
         self.assertEqual(cloned.count(), 2)
         self.assertEqual(cloned.fetchColors(), r.fetchColors())
 
+        # test invert function
+        r.invert()
+        self.assertEqual(r.color(0), QColor(0, 255, 0))
+        self.assertEqual(r.color(1), QColor(255, 0, 0))
+
     def testQgsColorBrewerColorRampV2(self):
         # test color brewer color ramps
         r = QgsColorBrewerColorRamp('OrRd', 6)
@@ -373,6 +384,13 @@ def testQgsColorBrewerColorRampV2(self):
         self.assertEqual(r.color(0.8), QColor(222, 45, 38))
         self.assertEqual(r.color(1.0), QColor(165, 15, 21))
 
+        # test invert function
+        r.invert()
+        self.assertEqual(r.color(0), QColor(165, 15, 21))
+        self.assertEqual(r.color(0.2), QColor(222, 45, 38))
+        self.assertEqual(r.color(1), QColor(254, 229, 217))
+        r.invert()
+
         # set colors
         r.setColors(3)
         self.assertEqual(r.colors(), 3)