fixed issue 7 (segfault when no plant and plot is selected)

Author: MickaelG

src/core/plants.cpp

@@ -30,7 +30,7 @@ Plant* Plants::find(const std::string& key)
             return plant_up.get();
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 void Plants::remove(int iplant)

src/gui/gui_widgets/EditCropWidget.cpp

@@ -74,10 +74,20 @@ void EditCropWidget::edit_crop()
 {
     QString plot_key = ui->plotInput->currentElem();
     Plot* p_plot = dataset.get_plots().find(fromQString(plot_key));
+    if (p_plot == nullptr) {
+       QMessageBox::critical(NULL, QObject::tr("Error"),
+                              QObject::tr("Please select a plot."));
+       return;
+    }
     Rectangle rect = ui->shapeInput->get_rect();
 
     QString plant_key = ui->plantInput->currentElem();
     Plant* p_plant = dataset.get_plants().find(fromQString(plant_key));
+    if (p_plant == nullptr) {
+       QMessageBox::critical(NULL, QObject::tr("Error"),
+                              QObject::tr("Please select a plant."));
+       return;
+    }
     QString var_key = ui->varInput->currentElem();
 
     QDate start_date = ui->startdateInput->selectedDate();

src/gui/gui_widgets/PlantsModel.cpp

@@ -64,6 +64,9 @@ QVariant PlantsModel::data(const QModelIndex& index, int role) const
 {
     if (! index.parent().isValid())  // parent is invalid: we want the plant
     {
+        if (index.row() >= plants.size() || index.row() < 0) {
+            return QVariant();
+        }
         if (role == Qt::DisplayRole)
         {
             if (index.column() == 0)
@@ -82,6 +85,9 @@ QVariant PlantsModel::data(const QModelIndex& index, int role) const
     else
     {
         int plant_index =  index.parent().row();
+        if (plant_index >= plants.size() || plant_index < 0) {
+            return QVariant();
+        }
         if (role == Qt::DisplayRole)
         {
             if (index.column() == 0)

src/gui/gui_widgets/PlotsModel.cpp

@@ -30,6 +30,10 @@ int PlotsModel::columnCount(const QModelIndex& index) const
 
 QVariant PlotsModel::data(const QModelIndex& index, int role) const
 {
+    if (index.row() >= plots.size() || index.row() < 0) {
+        return QVariant();
+    }
+
     if (role == Qt::DisplayRole)
     {
         if (index.column() == 0)

tomate_fr.ts

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
-<TS version="2.0" language="fr_FR">
+<TS version="2.1" language="fr_FR">
 <context>
     <name>AddDialog</name>
     <message>
@@ -247,22 +247,22 @@
 <context>
     <name>PhysInput</name>
     <message>
-        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="37"/>
+        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="62"/>
         <source>x position:</source>
         <translation>position x :</translation>
     </message>
     <message>
-        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="39"/>
+        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="64"/>
         <source>y position:</source>
         <translation>position y :</translation>
     </message>
     <message>
-        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="41"/>
+        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="66"/>
         <source>width:</source>
         <translation>largeur :</translation>
     </message>
     <message>
-        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="43"/>
+        <location filename="src/gui/gui_widgets/PhysInput.cpp" line="68"/>
         <source>height:</source>
         <translation>hauteur :</translation>
     </message>
@@ -337,6 +337,8 @@
         <location filename="src/main.cpp" line="38"/>
         <location filename="src/main.cpp" line="59"/>
         <location filename="src/main.cpp" line="81"/>
+        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="78"/>
+        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="87"/>
         <source>Error</source>
         <translation>Erreur</translation>
     </message>
@@ -366,12 +368,22 @@
         <translation>Erreur d&apos;écriture du fichier de données.</translation>
     </message>
     <message>
-        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="115"/>
+        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="79"/>
+        <source>Please select a plot.</source>
+        <translation>Veuillez sélectionner une planche.</translation>
+    </message>
+    <message>
+        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="88"/>
+        <source>Please select a plant.</source>
+        <translation>Veuillez sélectionner une plante.</translation>
+    </message>
+    <message>
+        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="125"/>
         <source>Delete crop</source>
         <translation>Suppression d&apos;une culture</translation>
     </message>
     <message>
-        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="116"/>
+        <location filename="src/gui/gui_widgets/EditCropWidget.cpp" line="126"/>
         <source>Are you sure you want to delete the crop ?</source>
         <translation>Êtes-vous sûr de vouloir supprimer cette culture ?</translation>
     </message>