Merge pull request #353 from pyjamasam/drag_and_drop

Support dragging and dropping of files onto app icon

Info.plist.template

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIconFile</key>
+	<string>${ASSETCATALOG_COMPILER_APPICON_NAME}</string>
+	<key>CFBundleIdentifier</key>
+	<string>${PRODUCT_BUNDLE_IDENTIFIER}</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleSignature</key>
+	<string>${QMAKE_PKGINFO_TYPEINFO}</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>${MACOSX_DEPLOYMENT_TARGET}</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>NSSupportsAutomaticGraphicsSwitching</key>
+	<true/>
+	<key>CFBundleDocumentTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+          <string>asc</string>
+          <string>avc</string>
+          <string>blf</string>
+          <string>can</string>
+          <string>crt</string>
+          <string>crtd</string>
+          <string>csv</string>
+          <string>evc</string>
+          <string>log</string>
+          <string>qcc</string>
+          <string>trace</string>
+          <string>trc</string>
+          <string>txt</string>
+			</array>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+	</array>
+</dict>
+</plist>

SavvyCAN.pro

@@ -16,6 +16,9 @@ DEFINES += QCUSTOMPLOT_USE_OPENGL
 TARGET = SavvyCAN
 TEMPLATE = app
 
+QMAKE_INFO_PLIST = Info.plist.template
+ICON = icons/SavvyIcon.icns
+
 SOURCES += main.cpp\
     connections/mqtt_bus.cpp \
     mqtt/qmqtt_client.cpp \

main.cpp

@@ -1,9 +1,30 @@
 #include "mainwindow.h"
 #include <QApplication>
 
+class SavvyCANApplication : public QApplication
+{
+public:
+    MainWindow *mainWindow;
+    
+    SavvyCANApplication(int &argc, char **argv) : QApplication(argc, argv)
+    {
+    }
+
+    bool event(QEvent *event) override
+    {
+        if (event->type() == QEvent::FileOpen)
+        {
+            QFileOpenEvent *openEvent = static_cast<QFileOpenEvent *>(event);
+            mainWindow->handleDroppedFile(openEvent->file());
+        }
+
+        return QApplication::event(event);
+    }
+};
+
 int main(int argc, char *argv[])
 {
-    QApplication a(argc, argv);
+    SavvyCANApplication a(argc, argv);
 
     //Add a local path for Qt extensions, to allow for per-application extensions.
     a.addLibraryPath("plugins");
@@ -14,7 +35,7 @@ int main(int argc, char *argv[])
     a.setOrganizationDomain("evtv.me");
     QSettings::setDefaultFormat(QSettings::IniFormat);
 
-    MainWindow w;
+    a.mainWindow = new MainWindow();
 
     QSettings settings;
     int fontSize = settings.value("Main/FontSize", 9).toUInt();
@@ -22,7 +43,11 @@ int main(int argc, char *argv[])
     sysFont.setPointSize(fontSize);
     a.setFont(sysFont);
 
-    w.show();
+    a.mainWindow->show();
 
-    return a.exec();
+    int retCode = a.exec();
+    
+    delete a.mainWindow; a.mainWindow = NULL;
+    
+    return retCode;
 }

mainwindow.cpp

@@ -807,6 +807,50 @@ void MainWindow::handleLoadFile()
     }
 }
 
+void MainWindow::handleDroppedFile(const QString &filename)
+{
+    QProgressDialog progress(qApp->activeWindow());
+    progress.setWindowModality(Qt::WindowModal);
+    progress.setLabelText("Loading file...");
+    progress.setCancelButton(nullptr);
+    progress.setRange(0,0);
+    progress.setMinimumDuration(0);
+    progress.show();
+    
+    QVector<CANFrame> loadedFrames;
+    bool loadResult = FrameFileIO::autoDetectLoadFile(filename, &loadedFrames);
+    
+    progress.cancel();
+    
+    if (!loadResult)
+    {
+        if (loadedFrames.count() > 0) //only ask if at least one frame was decoded.
+        {
+            QMessageBox::StandardButton confirmDialog = QMessageBox::question(this, "Error Loading", "Do you want to salvage what could be loaded?",
+                                      QMessageBox::Yes|QMessageBox::No);
+            if (confirmDialog == QMessageBox::Yes)
+            {
+                loadResult = true;
+            }
+        }
+    }
+
+    if (loadResult)
+    {
+        ui->canFramesView->scrollToTop();
+        model->clearFrames();
+        model->insertFrames(loadedFrames);
+        loadedFileName = filename;
+        model->recalcOverwrite();
+        ui->lbNumFrames->setText(QString::number(model->rowCount()));
+        if (ui->cbAutoScroll->isChecked()) ui->canFramesView->scrollToBottom();
+
+        updateFileStatus();
+        emit framesUpdated(-1);
+    }
+}
+
+
 void MainWindow::handleSaveFile()
 {
     QString filename;

mainwindow.h

@@ -54,6 +54,8 @@ public:
     CANFrameModel * getCANFrameModel();
     ~MainWindow();
 
+    void handleDroppedFile(const QString &filename);
+
 private slots:
     void handleLoadFile();
     void handleSaveFile();