# HG changeset patch
# User Hasan Yavuz ÖZDERYA <hy@ozderya.net>
# Date 2015-09-19 15:24:02
# Node ID b0405ffbfd8024e01119267f87a87128f177d4fe
# Parent  ffc9598dcddf54906c2fe4634d745c5a9f3ac7fa

take snapshot button creates a new snapshot and opens its window

diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -52,7 +52,12 @@ endif (QWT_USE_STATIC)
 include_directories(${QWT_INCLUDE_DIR})
 
 # wrap UI and resource files
-qt5_wrap_ui(UI_FILES mainwindow.ui portcontrol.ui about_dialog.ui)
+qt5_wrap_ui(UI_FILES
+  mainwindow.ui
+  portcontrol.ui
+  about_dialog.ui
+  snapshotview.ui
+  )
 qt5_add_resources(RES_FILES misc/icons.qrc)
 
 add_executable(${PROGRAM_NAME} WIN32
@@ -66,6 +71,7 @@ add_executable(${PROGRAM_NAME} WIN32
   scalepicker.cpp
   scalezoomer.cpp
   portlist.cpp
+  snapshotview.cpp
   ${UI_FILES}
   ${RES_FILES}
   misc/windows_icon.rc
diff --git a/framebuffer.cpp b/framebuffer.cpp
--- a/framebuffer.cpp
+++ b/framebuffer.cpp
@@ -45,7 +45,7 @@ void FrameBuffer::resize(size_t size)
 
     for (int i = fill_start; i < int(size); i++)
     {
-        newData[i] = _sample(i - offset);
+        newData[i] = sampleY(i - offset);
     }
 
     // fill the beginning of the new data
@@ -143,7 +143,7 @@ size_t FrameBuffer::size() const
 
 QPointF FrameBuffer::sample(size_t i) const
 {
-    return QPointF(i, _sample(i));
+    return QPointF(i, sampleY(i));
 }
 
 QRectF FrameBuffer::boundingRect() const
@@ -151,7 +151,7 @@ QRectF FrameBuffer::boundingRect() const
     return _boundingRect;
 }
 
-double FrameBuffer::_sample(size_t i) const
+double FrameBuffer::sampleY(size_t i) const
 {
     size_t index = headIndex + i;
     if (index >= _size) index -= _size;
diff --git a/framebuffer.h b/framebuffer.h
--- a/framebuffer.h
+++ b/framebuffer.h
@@ -37,6 +37,7 @@ public:
     // QwtSeriesData implementations
     size_t size() const;
     QPointF sample(size_t i) const;
+    double sampleY(size_t i) const;
     QRectF boundingRect() const;
 
 private:
@@ -46,7 +47,6 @@ private:
 
     QRectF _boundingRect;
 
-    double _sample(size_t i) const;
 };
 
 #endif // FRAMEBUFFER_H
diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -31,6 +31,8 @@
 #include <cmath>
 #include <iostream>
 
+#include <snapshotview.h>
+
 #include "utils.h"
 #include "version.h"
 #include "floatswap.h"
@@ -112,6 +114,9 @@ MainWindow::MainWindow(QWidget *parent) 
     QObject::connect(ui->actionClear, SIGNAL(triggered(bool)),
                      this, SLOT(clearPlot()));
 
+    QObject::connect(ui->actionSnapShot, SIGNAL(triggered(bool)),
+                     this, SLOT(takeSnapShot()));
+
     // setup number of channels spinbox
     QObject::connect(ui->spNumOfChannels,
                      SELECT<int>::OVERLOAD_OF(&QSpinBox::valueChanged),
@@ -241,6 +246,12 @@ MainWindow::~MainWindow()
     {
         serialPort.close();
     }
+
+    for (auto snapshot : snapshots)
+    {
+        delete snapshot;
+    }
+
     delete ui;
     ui = NULL; // we check if ui is deleted in messageHandler
 }
@@ -745,3 +756,23 @@ void MainWindow::messageHandler(QtMsgTyp
         ui->statusBar->showMessage(msg, 5000);
     }
 }
+
+void MainWindow::takeSnapShot()
+{
+    qDebug() << "taking a snopshot yay!";
+    auto snapShot = new SnapShot();
+    snapShot->name = QString("SnapShot");
+
+    for (unsigned ci = 0; ci < numOfChannels; ci++)
+    {
+        snapShot->data.append(QVector<QPointF>(numOfSamples));
+        for (unsigned i = 0; i < numOfSamples; i++)
+        {
+            snapShot->data[ci][i] = channelBuffers[ci]->sample(i);
+        }
+    }
+    snapshots.append(snapShot);
+
+    auto sv = new SnapShotView(this, snapShot);
+    sv->show();
+}
diff --git a/mainwindow.h b/mainwindow.h
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -35,6 +35,7 @@
 #include <qwt_plot_textlabel.h>
 
 #include "portcontrol.h"
+#include "snapshotview.h"
 #include "ui_about_dialog.h"
 #include "framebuffer.h"
 
@@ -99,6 +100,9 @@ private:
     unsigned int sampleCount;
     QTimer spsTimer;
 
+    // snapshots
+    QList<SnapShot*> snapshots;
+
     // demo
     QTimer demoTimer;
     int demoCount;
@@ -128,6 +132,8 @@ private slots:
 
     void spsTimerTimeout();
 
+    void takeSnapShot();
+
     void demoTimerTimeout();
     void enableDemo(bool enabled);
 
diff --git a/mainwindow.ui b/mainwindow.ui
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -16,7 +16,7 @@
   <widget class="QWidget" name="centralWidget">
    <layout class="QVBoxLayout" name="verticalLayout_2">
     <item>
-     <widget class="Plot" name="plot">
+     <widget class="Plot" name="plot" native="true">
       <property name="sizePolicy">
        <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
         <horstretch>0</horstretch>
@@ -501,6 +501,7 @@
    </attribute>
    <addaction name="actionPause"/>
    <addaction name="actionClear"/>
+   <addaction name="actionSnapShot"/>
   </widget>
   <widget class="QStatusBar" name="statusBar"/>
   <action name="actionPause">
@@ -604,12 +605,23 @@
     <string>Toggle Dark Background</string>
    </property>
   </action>
+  <action name="actionSnapShot">
+   <property name="text">
+    <string>SnapShot</string>
+   </property>
+   <property name="toolTip">
+    <string>Take a snapshot of the current plot (F5)</string>
+   </property>
+   <property name="shortcut">
+    <string>F5</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
   <customwidget>
    <class>Plot</class>
-   <extends>QFrame</extends>
+   <extends>QWidget</extends>
    <header>plot.h</header>
    <container>1</container>
   </customwidget>
diff --git a/serialplot.pro b/serialplot.pro
--- a/serialplot.pro
+++ b/serialplot.pro
@@ -42,7 +42,8 @@ SOURCES += main.cpp\
     framebuffer.cpp \
     scalepicker.cpp \
     scalezoomer.cpp \
-    portlist.cpp
+    portlist.cpp \
+    snapshotview.cpp
 
 HEADERS  += mainwindow.h \
     utils.h \
@@ -54,11 +55,13 @@ HEADERS  += mainwindow.h \
     framebuffer.h \
     scalepicker.h \
     scalezoomer.h \
-    portlist.h
+    portlist.h \
+    snapshotview.h
 
 FORMS    += mainwindow.ui \
     about_dialog.ui \
-    portcontrol.ui
+    portcontrol.ui \
+    snapshotview.ui
 
 INCLUDEPATH += qmake/
 
diff --git a/snapshotview.cpp b/snapshotview.cpp
new file mode 100644
--- /dev/null
+++ b/snapshotview.cpp
@@ -0,0 +1,30 @@
+#include "snapshotview.h"
+#include "ui_snapshotview.h"
+
+SnapShotView::SnapShotView(QWidget *parent, SnapShot* snapShot) :
+    QMainWindow(parent),
+    ui(new Ui::SnapShotView)
+{
+    ui->setupUi(this);
+
+    unsigned numOfChannels = snapShot->data.size();
+
+    for (unsigned ci = 0; ci < numOfChannels; ci++)
+    {
+        QwtPlotCurve* curve = new QwtPlotCurve();
+        curves.append(curve);
+        curve->setSamples(snapShot->data[ci]);
+        curve->attach(ui->plot);
+    }
+
+    _snapShot = snapShot;
+}
+
+SnapShotView::~SnapShotView()
+{
+    for (auto curve : curves)
+    {
+        delete curve;
+    }
+    delete ui;
+}
diff --git a/snapshotview.h b/snapshotview.h
new file mode 100644
--- /dev/null
+++ b/snapshotview.h
@@ -0,0 +1,37 @@
+#ifndef SNAPSHOTVIEW_H
+#define SNAPSHOTVIEW_H
+
+#include <QMainWindow>
+#include <QVector>
+#include <QPointF>
+#include <qwt_plot_curve.h>
+#include "plot.h"
+
+class SnapShotView;
+struct SnapShot
+{
+    QString name;
+    QVector<QVector<QPointF>> data;
+    SnapShotView* view;
+};
+
+namespace Ui {
+class SnapShotView;
+}
+
+class SnapShotView : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit SnapShotView(QWidget *parent, SnapShot* snapShot);
+    ~SnapShotView();
+
+private:
+    Ui::SnapShotView *ui;
+    QList<QwtPlotCurve*> curves;
+
+    SnapShot* _snapShot;
+};
+
+#endif // SNAPSHOTVIEW_H
diff --git a/snapshotview.ui b/snapshotview.ui
new file mode 100644
--- /dev/null
+++ b/snapshotview.ui
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SnapShotView</class>
+ <widget class="QMainWindow" name="SnapShotView">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>544</width>
+    <height>449</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="Plot" name="plot" native="true"/>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>544</width>
+     <height>27</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="actionExportCSV"/>
+   </widget>
+   <widget class="QMenu" name="menuView">
+    <property name="title">
+     <string>View</string>
+    </property>
+   </widget>
+   <addaction name="menuFile"/>
+   <addaction name="menuView"/>
+  </widget>
+  <widget class="QToolBar" name="toolBar">
+   <property name="windowTitle">
+    <string>toolBar</string>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+   <addaction name="actionExportCSV"/>
+   <addaction name="actionDelete"/>
+  </widget>
+  <action name="actionExportCSV">
+   <property name="text">
+    <string>Export CSV</string>
+   </property>
+  </action>
+  <action name="actionDelete">
+   <property name="text">
+    <string>Delete</string>
+   </property>
+   <property name="toolTip">
+    <string>Delete this snapshot!</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>Plot</class>
+   <extends>QWidget</extends>
+   <header>plot.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>