Changeset - dd74a99bcfac
Parent rev.
Child rev.
[Not reviewed]
snapshots
0 2 0
Hasan Yavuz ÖZDERYA - 10 years ago 2015-09-29 17:20:10
hy@ozderya.net
implemented load snapshot from csv file
2 files changed with 75 insertions and 0 deletions:
snapshotmanager.cpp
73
snapshotmanager.h
2
0 comments (0 inline, 0 general)
snapshotmanager.cpp
➞
Show inline comments
 
@@ -2,6 +2,10 @@
 
#include <QTime>
 
#include <QMenuBar>
 
#include <QKeySequence>
 
#include <QFileDialog>
 
#include <QFile>
 
#include <QVector>
 
#include <QPointF>
 

			




	
	
	
		
 
#include "snapshotmanager.h"

			




	
	
	
		
 

			




	
	
		
 
@@ -9,6 +13,7 @@ SnapshotManager::SnapshotManager(QMainWi

			




	
	
	
		
 
                                 QList<FrameBuffer*>* channelBuffers) :

			




	
	
	
		
 
    _menu("Snapshots"),

			




	
	
	
		
 
    _takeSnapshotAction("Take Snapshot", this),

			




	
	
	
		
 
    loadSnapshotAction("Load Snapshot", this),

			




	
	
	
		
 
    clearAction("Clear Snapshots", this)

			




	
	
	
		
 
{

			




	
	
	
		
 
    _mainWindow = mainWindow;

			




	
	
		
 
@@ -16,11 +21,14 @@ SnapshotManager::SnapshotManager(QMainWi

			




	
	
	
		
 

			




	
	
	
		
 
    _takeSnapshotAction.setToolTip("Take a snapshot of current plot (F5)");

			




	
	
	
		
 
    _takeSnapshotAction.setShortcut(QKeySequence("F5"));

			




	
	
	
		
 
    loadSnapshotAction.setToolTip("Load a snapshot from CSV file");

			




	
	
	
		
 
    clearAction.setToolTip("Delete all snapshots");

			




	
	
	
		
 
    connect(&_takeSnapshotAction, SIGNAL(triggered(bool)),

			




	
	
	
		
 
            this, SLOT(takeSnapshot()));

			




	
	
	
		
 
    connect(&clearAction, SIGNAL(triggered(bool)),

			




	
	
	
		
 
            this, SLOT(clearSnapshots()));

			




	
	
	
		
 
    connect(&loadSnapshotAction, SIGNAL(triggered(bool)),

			




	
	
	
		
 
            this, SLOT(loadSnapshot()));

			




	
	
	
		
 

			




	
	
	
		
 
    updateMenu();

			




	
	
	
		
 
}

			




	
	
		
 
@@ -62,6 +70,7 @@ void SnapshotManager::updateMenu()

			




	
	
	
		
 
{

			




	
	
	
		
 
    _menu.clear();

			




	
	
	
		
 
    _menu.addAction(&_takeSnapshotAction);

			




	
	
	
		
 
    _menu.addAction(&loadSnapshotAction);

			




	
	
	
		
 
    if (snapshots.size())

			




	
	
	
		
 
    {

			




	
	
	
		
 
        _menu.addSeparator();

			




	
	
		
 
@@ -91,6 +100,70 @@ void SnapshotManager::deleteSnapshot(Sna

			




	
	
	
		
 
    updateMenu();

			




	
	
	
		
 
}

			




	
	
	
		
 

			




	
	
	
		
 
void SnapshotManager::loadSnapshot()

			




	
	
	
		
 
{

			




	
	
	
		
 
    QString fileName = QFileDialog::getOpenFileName(_mainWindow, tr("Load CSV File"));

			




	
	
	
		
 

			




	
	
	
		
 
    if (fileName.isNull()) return; // user canceled

			




	
	
	
		
 

			




	
	
	
		
 
    QFile file(fileName);

			




	
	
	
		
 
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))

			




	
	
	
		
 
    {

			




	
	
	
		
 
        qCritical() << "Couldn't open file: " << fileName;

			




	
	
	
		
 
        qCritical() << file.errorString();

			




	
	
	
		
 
        return;

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    // read first row as headlines and determine number of channels

			




	
	
	
		
 
    auto headLine = QString(file.readLine());

			




	
	
	
		
 
    unsigned numOfChannels = headLine.split(',').size();

			




	
	
	
		
 

			




	
	
	
		
 
    // read data

			




	
	
	
		
 
    QVector<QVector<QPointF>> data(numOfChannels);

			




	
	
	
		
 
    unsigned lineNum = 1;

			




	
	
	
		
 
    while (file.canReadLine())

			




	
	
	
		
 
    {

			




	
	
	
		
 
        // parse line

			




	
	
	
		
 
        auto line = QString(file.readLine());

			




	
	
	
		
 
        auto split = line.split(',');

			




	
	
	
		
 

			




	
	
	
		
 
        if (split.size() != (int) numOfChannels)

			




	
	
	
		
 
        {

			




	
	
	
		
 
            qCritical() << "Parsing error at line " << lineNum

			




	
	
	
		
 
                        << ": number of columns is not consistent.";

			




	
	
	
		
 
            return;

			




	
	
	
		
 
        }

			




	
	
	
		
 

			




	
	
	
		
 
        for (unsigned ci = 0; ci < numOfChannels; ci++)

			




	
	
	
		
 
        {

			




	
	
	
		
 
            // parse column

			




	
	
	
		
 
            bool ok;

			




	
	
	
		
 
            double y = split[ci].toDouble(&ok);

			




	
	
	
		
 
            if (!ok)

			




	
	
	
		
 
            {

			




	
	
	
		
 
                qCritical() << "Parsing error at line " << lineNum

			




	
	
	
		
 
                            << ", column " << ci

			




	
	
	
		
 
                            << ": can't convert \"" << split[ci]

			




	
	
	
		
 
                            << "\" to double.";

			




	
	
	
		
 
                return;

			




	
	
	
		
 
            }

			




	
	
	
		
 
            data[ci].append(QPointF(lineNum-1, y));

			




	
	
	
		
 
        }

			




	
	
	
		
 
        lineNum++;

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    auto snapShot = new SnapShot(_mainWindow, QFileInfo(fileName).baseName());

			




	
	
	
		
 
    snapShot->data = data;

			




	
	
	
		
 

			




	
	
	
		
 
    snapshots.append(snapShot);

			




	
	
	
		
 
    QObject::connect(snapShot, &SnapShot::deleteRequested,

			




	
	
	
		
 
                     this, &SnapshotManager::deleteSnapshot);

			




	
	
	
		
 
    QObject::connect(snapShot, &SnapShot::deleteRequested,

			




	
	
	
		
 
                     this, &SnapshotManager::updateMenu);

			




	
	
	
		
 

			




	
	
	
		
 
    updateMenu();

			




	
	
	
		
 
}

			




	
	
	
		
 

			




	
	
	
		
 
QMenu* SnapshotManager::menu()

			




	
	
	
		
 
{

			




	
	
	
		
 
    return &_menu;

			




        

    


    
    

    

        

                

                    snapshotmanager.h
                

                

                  
                      
                        

                      ➞

                      
                        
                  

                  
                      
                  
                      
                  
                      
                  
                      
                  
                  
                

                

                    Show inline comments
                    
                

        

        

            



	
	
		
 
@@ -30,6 +30,7 @@ private:

			




	
	
	
		
 

			




	
	
	
		
 
    QMenu _menu;

			




	
	
	
		
 
    QAction _takeSnapshotAction;

			




	
	
	
		
 
    QAction loadSnapshotAction;

			




	
	
	
		
 
    QAction clearAction;

			




	
	
	
		
 

			




	
	
	
		
 
    void updateMenu();

			




	
	
		
 
@@ -38,6 +39,7 @@ private slots:

			




	
	
	
		
 
    void takeSnapshot();

			




	
	
	
		
 
    void clearSnapshots();

			




	
	
	
		
 
    void deleteSnapshot(SnapShot* snapshot);

			




	
	
	
		
 
    void loadSnapshot();

			




	
	
	
		
 
};

			




	
	
	
		
 

			




	
	
	
		
 
#endif /* SNAPSHOTMANAGER_H */

			




        

    



    


    



    



      

      





    
    0 comments (0 inline, 0 general)
    





    


  

  







  


    




    








    
        Server instance: zserverv-307515
    
    
        This site is powered by
            Kallithea,
        which is
        © 2010–2021 by various authors & licensed under GPLv3.
            – Support