Simplify tool - a bit of housekeeping (no functional changes)

wonder-sk · wonder-sk · commit e93c713e22a0 · 2015-01-22T22:16:22.000+07:00
diff --git a/src/app/qgsmaptoolsimplify.cpp b/src/app/qgsmaptoolsimplify.cpp
@@ -26,29 +26,19 @@
 #include <cmath>
 #include <cfloat>
 
-QgsSimplifyDialog::QgsSimplifyDialog( QWidget* parent )
+QgsSimplifyDialog::QgsSimplifyDialog( QgsMapToolSimplify* tool, QWidget* parent )
     : QDialog( parent )
+    , mTool( tool )
 {
   setupUi( this );
-  connect( horizontalSlider, SIGNAL( valueChanged( int ) ),
-           this, SLOT( valueChanged( int ) ) );
-  connect( horizontalSlider, SIGNAL( valueChanged( int ) ),
-           spinBox, SLOT( setValue( int ) ) );
-  connect( spinBox, SIGNAL( valueChanged( int ) ),
-           horizontalSlider, SLOT( setValue( int ) ) );
-  connect( okButton, SIGNAL( clicked() ),
-           this, SLOT( simplify() ) );
-
-}
-
-void QgsSimplifyDialog::valueChanged( int value )
-{
-  emit toleranceChanged( value );
-}
-
-void QgsSimplifyDialog::simplify()
-{
-  emit storeSimplified();
+  // synchronization of values
+  connect( horizontalSlider, SIGNAL( valueChanged( int ) ), spinBox, SLOT( setValue( int ) ) );
+  connect( spinBox, SIGNAL( valueChanged( int ) ), horizontalSlider, SLOT( setValue( int ) ) );
+
+  // communication with map tool
+  connect( spinBox, SIGNAL( valueChanged( int ) ), this, SLOT( toleranceChanged( int ) ) );
+  connect( okButton, SIGNAL( clicked() ), this, SLOT( okClicked() ) );
+  connect( this, SIGNAL( finished( int ) ), this, SLOT( onFinished() ) );
 }
 
 void QgsSimplifyDialog::setRange( int minValue, int maxValue )
@@ -61,17 +51,29 @@ void QgsSimplifyDialog::setRange( int minValue, int maxValue )
   spinBox->setRange( horizontalSlider->minimum(), horizontalSlider->maximum() );
 }
 
+void QgsSimplifyDialog::toleranceChanged( int tol )
+{
+  mTool->setTolerance( tol );
+}
+
+void QgsSimplifyDialog::okClicked()
+{
+  mTool->storeSimplified();
+}
+
+void QgsSimplifyDialog::onFinished()
+{
+  mTool->removeRubberBand();
+}
+
+
+////////////////////////////////////////////////////////////////////////////
+
 
 QgsMapToolSimplify::QgsMapToolSimplify( QgsMapCanvas* canvas )
     : QgsMapToolEdit( canvas ), mRubberBand( 0 )
 {
-  mSimplifyDialog = new QgsSimplifyDialog( canvas->topLevelWidget() );
-  connect( mSimplifyDialog, SIGNAL( toleranceChanged( int ) ),
-           this, SLOT( toleranceChanged( int ) ) );
-  connect( mSimplifyDialog, SIGNAL( storeSimplified() ),
-           this, SLOT( storeSimplified() ) );
-  connect( mSimplifyDialog, SIGNAL( finished( int ) ),
-           this, SLOT( removeRubberBand() ) );
+  mSimplifyDialog = new QgsSimplifyDialog( this, canvas->topLevelWidget() );
 }
 
 QgsMapToolSimplify::~QgsMapToolSimplify()
@@ -81,13 +83,12 @@ QgsMapToolSimplify::~QgsMapToolSimplify()
 }
 
 
-void QgsMapToolSimplify::toleranceChanged( int tolerance )
+void QgsMapToolSimplify::setTolerance( int tolerance )
 {
-  mTolerance = double( tolerance ) / toleranceDivider;
+  mTolerance = double( tolerance ) / mToleranceDivider;
 
   // create a copy of selected feature and do the simplification
   QgsFeature f = mSelectedFeature;
-  //QgsSimplifyFeature::simplifyLine(f, mTolerance);
   if ( mTolerance > 0 )
   {
     if ( mSelectedFeature.geometry()->type() == QGis::Line )
@@ -243,10 +244,10 @@ bool QgsMapToolSimplify::calculateSliderBoudaries()
       }
     }
   }
-  toleranceDivider = calculateDivider( minTolerance, maxTolerance );
+  mToleranceDivider = calculateDivider( minTolerance, maxTolerance );
   // set min and max
-  mSimplifyDialog->setRange( int( minTolerance * toleranceDivider ),
-                             int( maxTolerance * toleranceDivider ) );
+  mSimplifyDialog->setRange( int( minTolerance * mToleranceDivider ),
+                             int( maxTolerance * mToleranceDivider ) );
   return true;
 }
 
@@ -351,6 +352,8 @@ QVector<QgsPoint> QgsMapToolSimplify::getPointList( QgsFeature& f )
 }
 
 
+////////////////////////////////////////////////////////////////////////////
+
 
 bool QgsSimplifyFeature::simplifyLine( QgsFeature& lineFeature, double tolerance )
 {
diff --git a/src/app/qgsmaptoolsimplify.h b/src/app/qgsmaptoolsimplify.h
@@ -23,38 +23,37 @@
 #include "qgsfeature.h"
 
 class QgsRubberBand;
-
+class QgsMapToolSimplify;
 
 class APP_EXPORT QgsSimplifyDialog : public QDialog, private Ui::SimplifyLineDialog
 {
     Q_OBJECT
 
   public:
 
-    QgsSimplifyDialog( QWidget* parent = NULL );
+    QgsSimplifyDialog( QgsMapToolSimplify* tool, QWidget* parent = NULL );
 
     /** Setting range of slide bar */
     void setRange( int minValue, int maxValue );
 
-  signals:
+  private:
+    QgsMapToolSimplify* mTool;
+
+  private slots:
+
     /** Signal when slidebar is moved */
     void toleranceChanged( int tol );
-
     /** Signal to accept changes */
-    void storeSimplified();
+    void okClicked();
+
+    void onFinished();
 
-  private slots:
-    /** Internal signal when value is changed */
-    void valueChanged( int value );
-    /** Internal signal to store simplified feature */
-    void simplify();
 };
 
 
 /** Map tool to simplify line/polygon features */
 class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit
 {
-    Q_OBJECT
 
   public:
     QgsMapToolSimplify( QgsMapCanvas* canvas );
@@ -65,7 +64,12 @@ class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit
     //! called when map tool is being deactivated
     void deactivate() override;
 
-  public slots:
+    /** slot to change display when slidebar is moved */
+    void setTolerance( int tolerance );
+
+    /** slot to store feture after simplification */
+    void storeSimplified();
+
     void removeRubberBand();
 
   private:
@@ -89,18 +93,11 @@ class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit
     QgsFeature mSelectedFeature;
 
     /** tolerance divider is value which tells with which delete value from sidebar */
-    long toleranceDivider;
+    long mToleranceDivider;
 
     /** real value of tolerance */
     double mTolerance;
 
-  private slots:
-    /** slot to change display when slidebar is moved */
-    void toleranceChanged( int tolerance );
-
-    /** slot to store feture after simplification */
-    void storeSimplified();
-
 };
 
 /**
