Implement toolbar with copy all button for emv-viewer

This is for when the user wishes to copy all decoded items, including
trailing invalid data or padding, to the clipboard.

The edit-copy icon is not available in Windows and MacOS and therefore
the action will only display the "Copy All" text on those platforms.

Author: leonlynch

viewer/emv-viewer-mainwindow.cpp

@@ -301,6 +301,12 @@ void EmvViewerMainWindow::on_treeView_itemCopyClicked(QTreeWidgetItem* item)
 	QApplication::clipboard()->setText(str);
 }
 
+void EmvViewerMainWindow::on_actionCopyAll_triggered()
+{
+	QString str = treeView->toClipboardText(QStringLiteral("  "), 0);
+	QApplication::clipboard()->setText(str);
+}
+
 void EmvViewerMainWindow::on_descriptionText_linkActivated(const QString& link)
 {
 	// Open link using external application

viewer/emv-viewer-mainwindow.h

@@ -60,6 +60,7 @@ private slots: // connect-by-name helper functions
 	void on_decodeObjectsCheckBox_stateChanged(int state);
 	void on_treeView_itemPressed(QTreeWidgetItem* item, int column);
 	void on_treeView_itemCopyClicked(QTreeWidgetItem* item);
+	void on_actionCopyAll_triggered();
 	void on_descriptionText_linkActivated(const QString& link);
 
 protected:

viewer/emv-viewer-mainwindow.ui

@@ -23,7 +23,7 @@
       <property name="childrenCollapsible">
        <bool>false</bool>
       </property>
-      <widget class="QWidget" name="layoutWidget">
+      <widget class="QWidget" name="horizontalLayoutTopContainer">
        <layout class="QHBoxLayout" name="horizontalLayoutTop">
         <item>
          <widget class="QPlainTextEdit" name="dataEdit">
@@ -124,32 +124,61 @@
        <property name="childrenCollapsible">
         <bool>false</bool>
        </property>
-       <widget class="EmvTreeView" name="treeView">
-        <property name="minimumSize">
-         <size>
-          <width>300</width>
-          <height>0</height>
-         </size>
-        </property>
-        <property name="verticalScrollMode">
-         <enum>QAbstractItemView::ScrollPerPixel</enum>
-        </property>
-        <property name="headerHidden">
-         <bool>true</bool>
-        </property>
-        <property name="columnCount">
-         <number>2</number>
-        </property>
-        <column>
-         <property name="text">
-          <string notr="true">Field</string>
-         </property>
-        </column>
-        <column>
-         <property name="text">
-          <string notr="true">Buttons</string>
+       <widget class="QWidget" name="treeViewContainer">
+        <layout class="QVBoxLayout" name="treeViewLayout">
+         <property name="spacing">
+          <number>0</number>
          </property>
-        </column>
+         <item>
+          <widget class="QToolBar" name="treeViewToolBar">
+           <property name="maximumSize">
+            <size>
+             <width>16777215</width>
+             <height>32</height>
+            </size>
+           </property>
+           <property name="movable">
+            <bool>false</bool>
+           </property>
+           <property name="toolButtonStyle">
+            <enum>Qt::ToolButtonTextBesideIcon</enum>
+           </property>
+           <property name="floatable">
+            <bool>false</bool>
+           </property>
+           <addaction name="actionCopyAll"/>
+          </widget>
+         </item>
+         <item>
+          <widget class="EmvTreeView" name="treeView">
+           <property name="minimumSize">
+            <size>
+             <width>300</width>
+             <height>0</height>
+            </size>
+           </property>
+           <property name="verticalScrollMode">
+            <enum>QAbstractItemView::ScrollPerPixel</enum>
+           </property>
+           <property name="headerHidden">
+            <bool>true</bool>
+           </property>
+           <property name="columnCount">
+            <number>2</number>
+           </property>
+           <column>
+            <property name="text">
+             <string notr="true">Field</string>
+            </property>
+           </column>
+           <column>
+            <property name="text">
+             <string notr="true">Buttons</string>
+            </property>
+           </column>
+          </widget>
+         </item>
+        </layout>
        </widget>
        <widget class="BetterPlainTextEdit" name="descriptionText">
         <property name="minimumSize">
@@ -167,6 +196,17 @@
     </item>
    </layout>
   </widget>
+  <action name="actionCopyAll">
+   <property name="icon">
+    <iconset theme="edit-copy"/>
+   </property>
+   <property name="text">
+    <string>Copy All</string>
+   </property>
+   <property name="toolTip">
+    <string>Copy all fields to clipboard</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>