GUI: Let user add function in the library editor

gui/librarydata.cpp

@@ -132,6 +132,8 @@ bool LibraryData::open(QIODevice &file)
     if (!doc.setContent(&file))
         return false;
 
+    clear();
+
     QDomElement rootElement = doc.firstChildElement("def");
     QStringList comments;
     for (QDomNode n = rootElement.firstChild(); !n.isNull(); n = n.nextSibling()) {

gui/librarydialog.cpp

@@ -23,6 +23,7 @@
 #include <QSettings>
 #include <QFileDialog>
 #include <QTextStream>
+#include <QInputDialog>
 
 // TODO: get/compare functions from header
 
@@ -57,12 +58,15 @@ void LibraryDialog::openCfg()
         mFileName.clear();
         QFile file(selectedFile);
         if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+            ignoreChanges = true;
             data.open(file);
             mFileName = selectedFile;
             ui->buttonSave->setEnabled(false);
             ui->functions->clear();
-            foreach(const struct LibraryData::Function &function, data.functions)
-            ui->functions->addItem(function.name);
+            foreach(const struct LibraryData::Function &function, data.functions) {
+                ui->functions->addItem(function.name);
+            }
+            ignoreChanges = false;
         }
     }
 }
@@ -79,6 +83,25 @@ void LibraryDialog::saveCfg()
     }
 }
 
+void LibraryDialog::addFunction()
+{
+    LibraryData::Function f;
+    bool ok;
+    f.name = QInputDialog::getText(this, tr("Add function"), tr("Function name"), QLineEdit::Normal, "doStuff", &ok);
+    if (!ok)
+        return;
+    int args = QInputDialog::getInt(this, tr("Add function"), tr("Number of arguments"), 0, 0, 20, 1, &ok);
+    if (!ok)
+        return;
+    for (int i = 1; i <= args; i++) {
+        LibraryData::Function::Arg arg;
+        arg.nr = i;
+        f.args.append(arg);
+    }
+    data.functions.append(f);
+    ui->functions->addItem(f.name);
+}
+
 void LibraryDialog::selectFunction(int row)
 {
     ignoreChanges = true;

gui/librarydialog.h

@@ -40,6 +40,7 @@ public:
 private slots:
     void openCfg();
     void saveCfg();
+    void addFunction();
     void selectFunction(int row);
     void changeFunction();
     void argumentChanged(QListWidgetItem *);

gui/librarydialog.ui

@@ -66,6 +66,30 @@
          </property>
         </widget>
        </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_3">
+         <item>
+          <widget class="QPushButton" name="addFunction">
+           <property name="text">
+            <string>Add</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_2">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
       </layout>
      </item>
      <item>
@@ -234,6 +258,22 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>addFunction</sender>
+   <signal>clicked()</signal>
+   <receiver>LibraryDialog</receiver>
+   <slot>addFunction()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>48</x>
+     <y>282</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>65</x>
+     <y>298</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
  <slots>
   <slot>selectFunction(int)</slot>
@@ -241,5 +281,6 @@
   <slot>changeFunction()</slot>
   <slot>saveCfg()</slot>
   <slot>argumentChanged(QListWidgetItem*)</slot>
+  <slot>addFunction()</slot>
  </slots>
 </ui>