Example #1
0
void ColorChooser::showCurrentHistogram()
{
  dividerLower->setVisible(m_discretizeMethod != DiscretizeNone);
  dividerUpper->setVisible(m_discretizeMethod != DiscretizeNone);

  refreshHistogram(&intensityHistogram, DiscretizeIntensity);
  refreshHistogram(&foregroundHistogram, DiscretizeForeground);
  refreshHistogram(&hueHistogram, DiscretizeHue);
  refreshHistogram(&saturationHistogram, DiscretizeSaturation);
  refreshHistogram(&valueHistogram, DiscretizeValue);
}
Example #2
0
QgsHistogramWidget::QgsHistogramWidget( QWidget *parent, QgsVectorLayer* layer, const QString& fieldOrExp )
    : QWidget( parent )
    , mRedrawRequired( true )
    , mVectorLayer( layer )
    , mSourceFieldExp( fieldOrExp )
{
  setupUi( this );

  mPlot = mpPlot;

  // hide the ugly canvas frame
#if defined(QWT_VERSION) && QWT_VERSION>=0x060000
  QFrame* plotCanvasFrame = dynamic_cast<QFrame*>( mpPlot->canvas() );
  if ( plotCanvasFrame )
    plotCanvasFrame->setFrameStyle( QFrame::NoFrame );
#else
  mpPlot->canvas()->setFrameStyle( QFrame::NoFrame );
#endif

  QSettings settings;
  mMeanCheckBox->setChecked( settings.value( "/HistogramWidget/showMean", false ).toBool() );
  mStdevCheckBox->setChecked( settings.value( "/HistogramWidget/showStdev", false ).toBool() );

  connect( mBinsSpinBox, SIGNAL( valueChanged( int ) ), this, SLOT( refreshAndRedraw() ) );
  connect( mMeanCheckBox, SIGNAL( toggled( bool ) ), this, SLOT( refreshAndRedraw() ) );
  connect( mStdevCheckBox, SIGNAL( toggled( bool ) ), this, SLOT( refreshAndRedraw() ) );

  mGridPen = QPen( QColor( 0, 0, 0, 40 ) );
  mMeanPen = QPen( QColor( 10, 10, 10, 220 ) );
  mMeanPen.setStyle( Qt::DashLine );
  mStdevPen = QPen( QColor( 30, 30, 30, 200 ) );
  mStdevPen.setStyle( Qt::DashLine );

  if ( layer && !mSourceFieldExp.isEmpty() )
  {
    refreshHistogram();
  }
}
Example #3
0
void QgsHistogramWidget::refreshAndRedraw()
{
  refreshHistogram();
  drawHistogram();
}