/usr/include/qgis/qgsrasterhistogramwidget.h is in libqgis-dev 2.0.1-2build2.
This file is owned by root:root, with mode 0o644.
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qgsrasterrendererwidget.h
---------------------------
begin : July 2012
copyright : (C) 2012 by Etienne Tourigny
email : etourigny dot dev at gmail dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSRASTERHISTOGRAMWIDGET_H
#define QGSRASTERHISTOGRAMWIDGET_H
#include "ui_qgsrasterhistogramwidgetbase.h"
class QgsRasterLayer;
class QgsRasterRendererWidget;
class QwtPlotPicker;
class QwtPlotMarker;
class QwtPlotZoomer;
// fix for qwt5/qwt6 QwtDoublePoint vs. QPointF
#if defined(QWT_VERSION) && QWT_VERSION>=0x060000
typedef QPointF QwtDoublePoint;
#endif
/** Histogram widget
*@author Etienne Tourigny
*/
class GUI_EXPORT QgsRasterHistogramWidget : public QWidget, private Ui::QgsRasterHistogramWidgetBase
{
Q_OBJECT
public:
QgsRasterHistogramWidget( QgsRasterLayer *lyr, QWidget *parent = 0 );
~QgsRasterHistogramWidget();
/** Save the histogram as an image to disk */
bool histoSaveAsImage( const QString& theFilename, int width = 600, int height = 600, int quality = -1 );
/** Set the renderer widget (or just its name if there is no widget) */
void setRendererWidget( const QString& name, QgsRasterRendererWidget* rendererWidget = NULL );
/** Activate the histogram widget */
void setActive( bool theActiveFlag );
/** \brief Compute the histogram on demand. */
bool computeHistogram( bool forceComputeFlag );
/** Apply a histoActionTriggered() event. */
void histoAction( const QString actionName, bool actionFlag = true );
/** Apply a histoActionTriggered() event. */
void setSelectedBand( int index );
public slots:
/** \brief slot executed when user wishes to refresh raster histogramwidget */
void refreshHistogram();
/** This slot lets you save the histogram as an image to disk */
void on_mSaveAsImageButton_clicked();
private slots:
/** Used when the histogram band selector changes, or when tab is loaded. */
void on_cboHistoBand_currentIndexChanged( int );
/** Applies the selected min/max values to the renderer widget. */
void applyHistoMin( );
void applyHistoMax( );
/** Button to activate picking of the min/max value on the graph. */
void on_btnHistoMin_toggled();
void on_btnHistoMax_toggled();
/** Called when a selection has been made using the plot picker. */
void histoPickerSelected( const QPointF & );
/** Called when a selection has been made using the plot picker (for qwt5 only).
@note not available in python bindings
*/
void histoPickerSelectedQwt5( const QwtDoublePoint & );
/** Various actions that are stored in btnHistoActions. */
void histoActionTriggered( QAction* );
/** Draw the min/max markers on the histogram plot. */
void updateHistoMarkers();
/** Button to compute the histogram, appears when no cached histogram is available. */
void on_btnHistoCompute_clicked();
private:
enum HistoShowBands
{
ShowAll = 0,
ShowSelected = 1,
ShowRGB = 2
};
/** \brief Pointer to the raster layer that this property dilog changes the behaviour of. */
QgsRasterLayer * mRasterLayer;
/** \brief Pointer to the renderer widget, to get/set min/max. */
QgsRasterRendererWidget* mRendererWidget;
/** \brief Name of the renderer widget (see QgsRasterRendererRegistry). */
QString mRendererName;
QwtPlotPicker* mHistoPicker;
QwtPlotZoomer* mHistoZoomer;
QwtPlotMarker* mHistoMarkerMin;
QwtPlotMarker* mHistoMarkerMax;
double mHistoMin;
double mHistoMax;
QVector<QColor> mHistoColors;
bool mHistoShowMarkers;
bool mHistoZoomToMinMax;
bool mHistoUpdateStyleToMinMax;
/* bool mHistoLoadApplyAll; */
HistoShowBands mHistoShowBands;
/** \brief Returns a list of selected bands in the histogram widget- or empty if there is no selection restriction. */
QList< int > histoSelectedBands();
/** \brief Returns a list of selected bands in the renderer widget. */
QList< int > rendererSelectedBands();
QPair< QString, QString > rendererMinMax( int theBandNo );
};
#endif
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