Updates to airspeed gadget: the background SVG file is now defined in the configuration options, is properly saved and restored between sessions, etc. Several dial configurations can be defined. Next step is to enhance the configuration system to create generic dials.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@568 ebee16cc-31ac-478f-84a7-5cbb03baadba

ground/src/plugins/airspeed/airspeedgadget.cpp

@@ -27,6 +27,7 @@
 
 #include "airspeedgadget.h"
 #include "airspeedgadgetwidget.h"
+#include "airspeedgadgetconfiguration.h"
 
 AirspeedGadget::AirspeedGadget(QString classId, AirspeedGadgetWidget *widget, QWidget *parent) :
         IUAVGadget(classId, parent),
@@ -38,3 +39,10 @@ AirspeedGadget::~AirspeedGadget()
 {
 
 }
+
+void AirspeedGadget::loadConfiguration(IUAVGadgetConfiguration* config)
+{
+    AirspeedGadgetConfiguration *m = qobject_cast<AirspeedGadgetConfiguration*>(config);
+    m_widget->setDialFile(m->dialFile());
+
+}

ground/src/plugins/airspeed/airspeedgadget.h

@@ -46,6 +46,7 @@ public:
     ~AirspeedGadget();
 
     QWidget *widget() { return m_widget; }
+    void loadConfiguration(IUAVGadgetConfiguration* config);
 
 private:
     AirspeedGadgetWidget *m_widget;

ground/src/plugins/airspeed/airspeedgadgetconfiguration.h

@@ -43,7 +43,7 @@ public:
 
 
     //get port configuration functions
-    QString dialFile(){return m_defaultDial;}
+    QString dialFile() {return m_defaultDial;}
 
     QByteArray saveState() const;
     IUAVGadgetConfiguration *clone();

ground/src/plugins/airspeed/airspeedgadgetoptionspage.cpp

@@ -33,7 +33,10 @@
 #include <QtGui/QHBoxLayout>
 #include <QtGui/QVBoxLayout>
 #include <QtGui/QTextEdit>
+#include <QtGui/QLineEdit>
+#include <QtGui/QPushButton>
 #include <QtGui/QComboBox>
+#include <QFileDialog>
 #include <QtAlgorithms>
 #include <QStringList>
 
@@ -47,33 +50,45 @@ AirspeedGadgetOptionsPage::AirspeedGadgetOptionsPage(AirspeedGadgetConfiguration
 QWidget *AirspeedGadgetOptionsPage::createPage(QWidget *parent)
 {
     //main widget
-    QWidget *widget = new QWidget;
+    QWidget *optionsPageWidget = new QWidget;
     //main layout
     QVBoxLayout *vl = new QVBoxLayout();
-    widget->setLayout(vl);
+    optionsPageWidget->setLayout(vl);
 
-    //port layout and widget
+    //SVG file select layout and widget
-    QHBoxLayout *portLayout = new QHBoxLayout();
+    //choose file layout and widget
-    QWidget *x = new QWidget;
+    QHBoxLayout *FileLayout = new QHBoxLayout;
-    x->setLayout(portLayout);
+    QWidget *FileWidget = new QWidget;
+    FileWidget->setLayout(FileLayout);
     QWidget *label = new QLabel("Dial SVG:");
-    m_portCB = new QComboBox(parent);
+    svgSourceFile = new QLineEdit();
-    m_portCB->setMinimumSize(200,22);
+    QPushButton* loadfile = new QPushButton("Load File");
-    portLayout->addWidget(label);
+    loadfile->setMaximumWidth(80);
-    portLayout->addWidget(m_portCB);
+    FileLayout->addWidget(label);
+    FileLayout->addWidget(svgSourceFile);
+    FileLayout->addWidget(loadfile);
 
 
     QSpacerItem *spacer = new QSpacerItem(100, 100, QSizePolicy::Expanding, QSizePolicy::Expanding);
 
     //add partial widget to main widget
-    vl->addWidget(x);
+    vl->addWidget(FileWidget);
     vl->addSpacerItem(spacer);
 
     //clears comboboxes, if not every time the user enters options page the lists
     //duplicate
-    m_portCB->clear();
+    svgSourceFile->clear();
 
-    return widget;
+    //connect signals to slots
+
+    //fires when the user presses file button
+    connect(loadfile, SIGNAL(clicked(bool)),
+            this,SLOT(setOpenFileName()));
+
+    // Restore the contents from the settings:
+    svgSourceFile->setText(m_config->dialFile());
+
+    return optionsPageWidget;
 }
 /**
  * Called when the user presses apply or OK.
@@ -83,10 +98,30 @@ QWidget *AirspeedGadgetOptionsPage::createPage(QWidget *parent)
  */
 void AirspeedGadgetOptionsPage::apply()
 {
-    m_config->setDialFile(m_portCB->currentText());
+    m_config->setDialFile(svgSourceFile->text());
 
 }
 
+/**
+
+Opens an open file dialog.
+
+*/
+void AirspeedGadgetOptionsPage::setOpenFileName()
+{
+    QFileDialog::Options options;
+    QString selectedFilter;
+    QString fileName = QFileDialog::getOpenFileName(qobject_cast<QWidget*>(this),
+                                                    tr("QFileDialog::getOpenFileName()"),
+                                                    svgSourceFile->text(),
+                                                    tr("All Files (*);;SVG Files (*.svg)"),
+                                                    &selectedFilter,
+                                                    options);
+    if (!fileName.isEmpty()) svgSourceFile->setText(fileName);
+
+}
+
+
 void AirspeedGadgetOptionsPage::finish()
 {
 

ground/src/plugins/airspeed/airspeedgadgetoptionspage.h

@@ -38,7 +38,7 @@ class IUAVGadgetConfiguration;
 }
 class AirspeedGadgetConfiguration;
 class QTextEdit;
-class QComboBox;
+class QLineEdit;
 class QSpinBox;
 
 using namespace Core;
@@ -55,7 +55,10 @@ public:
 
 private:
     AirspeedGadgetConfiguration *m_config;
-    QComboBox *m_portCB;
+    QLineEdit* svgSourceFile;
+
+private slots:
+    void setOpenFileName();
 };
 
 #endif // AIRSPEEDGADGETOPTIONSPAGE_H

ground/src/plugins/airspeed/airspeedgadgetwidget.cpp

@@ -42,8 +42,8 @@ AirspeedGadgetWidget::AirspeedGadgetWidget(QWidget *parent) : QGraphicsView(pare
     m_foreground = new QGraphicsSvgItem();
     m_desired = new QGraphicsSvgItem();
     m_actual = new QGraphicsSvgItem();
-    setDialFile(QFileDialog::getOpenFileName(qobject_cast<QWidget*>(this),
+    //setDialFile(QFileDialog::getOpenFileName(qobject_cast<QWidget*>(this),
-        tr("Airspeed Dial"), "../artwork/", tr("SVG File (*.svg)")) );
+    //    tr("Airspeed Dial"), "../artwork/", tr("SVG File (*.svg)")) );
     //setDialFile(QString("/usr/src/openpilot/artwork/Dials/extracts/speed-complete.svg"));
     paint();
 
@@ -76,7 +76,12 @@ void AirspeedGadgetWidget::setDialFile(QString dfn)
 
          m_actual->setSharedRenderer(m_renderer);
          m_actual->setElementId(QString("needle"));
-      }
+
+         std::cout<<"Dial file loaded"<<std::endl;
+         QGraphicsScene *l_scene = scene();
+         l_scene->setSceneRect(m_background->boundingRect());
+
+     }
    }
    else
    { std::cout<<"no file: "<<std::endl; }
@@ -84,6 +89,7 @@ void AirspeedGadgetWidget::setDialFile(QString dfn)
 
 void AirspeedGadgetWidget::paint()
 {
+
     QGraphicsScene *l_scene = scene();
     l_scene->clear();
 
@@ -98,6 +104,11 @@ void AirspeedGadgetWidget::paint()
 
 void AirspeedGadgetWidget::paintEvent(QPaintEvent *event)
 {
+    // Skip painting until the dial file is loaded
+    if (! m_renderer->isValid()) {
+        std::cout<<"Dial file not loaded"<<std::endl;
+        return;
+    }
    QGraphicsView::paintEvent(event);
 }
 

ground/src/plugins/airspeed/airspeedgadgetwidget.h

@@ -60,7 +60,6 @@ private slots:
 // End test functions
 
 private:
-   QString dialFilename;
    QSvgRenderer *m_renderer;
    QGraphicsSvgItem *m_background;
    QGraphicsSvgItem *m_foreground;