DlgSettingsColorFilter Class Reference

Dialog for editing filtering settings. More...

#include <DlgSettingsColorFilter.h>

Inheritance diagram for DlgSettingsColorFilter:

Collaboration diagram for DlgSettingsColorFilter:

Public Slots
void	slotTransferPiece (int xLeft, QImage image)
	Receive processed piece of preview image, to be inserted at xLeft to xLeft+pixmap.width(). More...

Signals
void	signalApplyFilter (ColorFilterMode colorFilterMode, double low, double high)
	Send filter parameters to DlgFilterThread and DlgFilterWorker for processing. More...

Public Member Functions
	DlgSettingsColorFilter (MainWindow &mainWindow)
	Single constructor. More...
virtual	~DlgSettingsColorFilter ()
virtual void	createOptionalSaveDefault (QHBoxLayout *layout)
	Let subclass define an optional Save As Default button. More...
virtual QWidget *	createSubPanel ()
	Create dialog-specific panel to which base class will add Ok and Cancel buttons. More...
virtual void	load (CmdMediator &cmdMediator)
	Load settings from Document. More...
virtual void	setSmallDialogs (bool smallDialogs)
	If false then dialogs have a minimum size so all controls are visible. More...
Public Member Functions inherited from DlgSettingsAbstractBase
	DlgSettingsAbstractBase (const QString &title, const QString &dialogName, MainWindow &mainWindow)
	Single constructor. More...
virtual	~DlgSettingsAbstractBase ()

Protected Member Functions
virtual void	handleOk ()
	Process slotOk. More...
Protected Member Functions inherited from DlgSettingsAbstractBase
CmdMediator &	cmdMediator ()
	Provide access to Document information wrapped inside CmdMediator. More...
void	enableOk (bool enable)
	Let leaf subclass control the Ok button. More...
void	finishPanel (QWidget *subPanel, int minimumWidth=MINIMUM_DIALOG_WIDTH, int minimumHeightOrZero=0)
	Add Ok and Cancel buttons to subpanel to get the whole dialog. More...
MainWindow &	mainWindow ()
	Get method for MainWindow. More...
const MainWindow &	mainWindow () const
	Const get method for MainWindow. More...
void	populateColorComboWithoutTransparent (QComboBox &combo)
	Add colors in color palette to combobox, without transparent entry at end. More...
void	populateColorComboWithTransparent (QComboBox &combo)
	Add colors in color palette to combobox, with transparent entry at end. More...
void	setCmdMediator (CmdMediator &cmdMediator)
	Store CmdMediator for easy access by the leaf class. More...
void	setDisableOkAtStartup (bool disableOkAtStartup)
	Override the default Ok button behavior applied in showEvent. More...

Additional Inherited Members
Static Protected Attributes inherited from DlgSettingsAbstractBase
static int	MINIMUM_DIALOG_WIDTH = 380
	Dialog layout constant that guarantees every widget has sufficient room. Can be increased by finishPanel. More...
static int	MINIMUM_PREVIEW_HEIGHT = 100
	Dialog layout constant that guarantees preview has sufficent room. More...

Detailed Description

Dialog for editing filtering settings.

Definition at line 29 of file DlgSettingsColorFilter.h.

Constructor & Destructor Documentation

DlgSettingsColorFilter()

DlgSettingsColorFilter::DlgSettingsColorFilter

(

MainWindow &

mainWindow

)

Single constructor.

Definition at line 36 of file DlgSettingsColorFilter.cpp.

                                                                     :
  DlgSettingsAbstractBase (tr ("Color Filter"),
                           "DlgSettingsColorFilter",
                           mainWindow),
  m_scenePreview (nullptr),
  m_viewPreview (nullptr),
  m_filterThread (nullptr),
  m_modelColorFilterBefore (nullptr),
  m_modelColorFilterAfter (nullptr)
{
  LOG4CPP_INFO_S ((*mainCat)) << "DlgSettingsColorFilter::DlgSettingsColorFilter";

  QWidget *subPanel = createSubPanel ();
  finishPanel (subPanel,
               MINIMUM_DIALOG_WIDTH_COLOR_FILTER);
}

~DlgSettingsColorFilter()

DlgSettingsColorFilter::~DlgSettingsColorFilter ( )

virtual

Definition at line 53 of file DlgSettingsColorFilter.cpp.

{
  LOG4CPP_INFO_S ((*mainCat)) << "DlgSettingsColorFilter::~DlgSettingsColorFilter";

  delete m_filterThread;
}

Member Function Documentation

createOptionalSaveDefault()

void DlgSettingsColorFilter::createOptionalSaveDefault ( QHBoxLayout *  layout )

virtual

Let subclass define an optional Save As Default button.

Implements DlgSettingsAbstractBase.

Definition at line 116 of file DlgSettingsColorFilter.cpp.

{
}

createSubPanel()

QWidget * DlgSettingsColorFilter::createSubPanel ( )

virtual

Create dialog-specific panel to which base class will add Ok and Cancel buttons.

Implements DlgSettingsAbstractBase.

Definition at line 166 of file DlgSettingsColorFilter.cpp.

{
  LOG4CPP_INFO_S ((*mainCat)) << "DlgSettingsColorFilter::createSubPanel";

  const int EMPTY_COLUMN_WIDTH = 40;

  QWidget *subPanel = new QWidget ();
  QGridLayout *layout = new QGridLayout (subPanel);
  subPanel->setLayout (layout);

  layout->setColumnStretch(0, 0); // Empty column
  layout->setColumnMinimumWidth(0, EMPTY_COLUMN_WIDTH);
  layout->setColumnStretch(1, 0); // Radio buttons
  layout->setColumnMinimumWidth(1, 210);
  layout->setColumnStretch(2, 0); // Empty column to put some space between previous and next columns, so they are not too close
  layout->setColumnMinimumWidth(2, 15);
  layout->setColumnStretch(3, 1); // Profile
  layout->setColumnMinimumWidth(4, EMPTY_COLUMN_WIDTH); // Empty column
  layout->setColumnStretch(4, 0);

  int rowLeft = 0, rowRight = 0;
  createControls (layout, rowLeft);
  createProfileAndScale (layout, rowRight);

  int row = qMax (rowLeft, rowRight);
  createPreview (layout, row);

  return subPanel;
}

handleOk()

void DlgSettingsColorFilter::handleOk ( )

protectedvirtual

Process slotOk.

Implements DlgSettingsAbstractBase.

Definition at line 217 of file DlgSettingsColorFilter.cpp.

{
  LOG4CPP_INFO_S ((*mainCat)) << "DlgSettingsColorFilter::handleOk";

  CmdSettingsColorFilter *cmd = new CmdSettingsColorFilter (mainWindow (),
                                                            cmdMediator ().document(),
                                                            *m_modelColorFilterBefore,
                                                            *m_modelColorFilterAfter);
  cmdMediator ().push (cmd);

  hide ();
}

load()

void DlgSettingsColorFilter::load ( CmdMediator &  cmdMediator )

virtual

Load settings from Document.

Implements DlgSettingsAbstractBase.

Definition at line 230 of file DlgSettingsColorFilter.cpp.

{
  LOG4CPP_INFO_S ((*mainCat)) << "DlgSettingsColorFilter::load";

  setCmdMediator (cmdMediator);

  // Flush old data
  delete m_modelColorFilterBefore;
  delete m_modelColorFilterAfter;

  // Save new data
  m_modelColorFilterBefore = new DocumentModelColorFilter (cmdMediator.document().modelColorFilter());
  m_modelColorFilterAfter = new DocumentModelColorFilter (cmdMediator.document().modelColorFilter());

  // Populate controls. First load curve name combobox. The curve-specific controls get loaded in slotCurveName
  m_cmbCurveName->clear ();
  m_cmbCurveName->addItem (AXIS_CURVE_NAME);
  QStringList curveNames = cmdMediator.curvesGraphsNames();
  QStringList::const_iterator itr;
  for (itr = curveNames.begin (); itr != curveNames.end (); itr++) {

    QString curveName = *itr;
    m_cmbCurveName->addItem (curveName);
  }

  // This sets the curve name
  m_cmbCurveName->setCurrentText (mainWindow().selectedGraphCurve());
  loadForCurveName();

  enableOk (false); // Disable Ok button since there not yet any changes
}

setSmallDialogs()

void DlgSettingsColorFilter::setSmallDialogs ( bool  smallDialogs )

virtual

If false then dialogs have a minimum size so all controls are visible.

Implements DlgSettingsAbstractBase.

Definition at line 292 of file DlgSettingsColorFilter.cpp.

{
  if (!smallDialogs) {
    setMinimumHeight (MINIMUM_HEIGHT);
  }
}

signalApplyFilter

void DlgSettingsColorFilter::signalApplyFilter ( ColorFilterMode  colorFilterMode, double  low, double  high  )

signal

Send filter parameters to DlgFilterThread and DlgFilterWorker for processing.

slotTransferPiece

void DlgSettingsColorFilter::slotTransferPiece ( int  xLeft, QImage  image  )

slot

Receive processed piece of preview image, to be inserted at xLeft to xLeft+pixmap.width().

Definition at line 360 of file DlgSettingsColorFilter.cpp.

{
  // Overwrite one piece of the processed image. This approach is a bit slow because the entire QPixmap
  // in the QGraphicsScene gets exchanged as part of each update, but that seems to be the only possible
  // approach when using QGraphicsScene. If not fast enough or there is ugly flicker, we may replace
  // QGraphicsScene by a simple QWidget and override the paint function - but that approach may get
  // complicated when resizing the QGraphicsView
  for (int xFrom = 0, xTo = xLeft; xFrom < image.width(); xFrom++, xTo++) {
    for (int y = 0; y < image.height (); y++) {

      QColor pixel = image.pixel (xFrom, y);
      m_imagePreview.setPixel (xTo, y, pixel.rgb());
    }
  }

  // Remove old pixmap
  QGraphicsItem *itemPixmap = m_scenePreview->items().at(0);
  m_scenePreview->removeItem (itemPixmap);
  delete itemPixmap;

  // Save new pixmap. Only visible change should be the area covered by the pixels in image
  m_scenePreview->addPixmap (QPixmap::fromImage (m_imagePreview));
}

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The documentation for this class was generated from the following files:

• Dlg/DlgSettingsColorFilter.h
• Dlg/DlgSettingsColorFilter.cpp