add amsmath to needed packages

src/main/java/edu/kit/typicalc/view/content/typeinferencecontent/ShareDialog.java

@@ -25,7 +25,7 @@ public class ShareDialog extends Dialog implements LocaleChangeObserver {
     private static final String CLOSE_ICON_ID = "closeIcon";
 
     private final TextField urlField;
-    private final TextField packageField;
+    private final TextArea packageArea;
     private final TextArea latexArea;
     private final H3 heading;
 
@@ -34,11 +34,9 @@ public class ShareDialog extends Dialog implements LocaleChangeObserver {
      * to the String that is passed as corresponding parameter.
      *
      * @param url           a permalink to share with other users
-     * @param latexPackages the needed LaTeX-packages to use the displayed mathematics
-     *                      in other LaTeX documents. Should be in the form „\\usepackage&ltpackage&gt“
      * @param latexCode     LaTeX code for users to copy into their own LaTeX document(s)
      */
-    public ShareDialog(String url, String latexPackages, String latexCode) {
+    public ShareDialog(String url, String latexCode) {
         HorizontalLayout headingLayout = new HorizontalLayout();
         headingLayout.setId(HEADING_LAYOUT_ID);
 
@@ -55,17 +53,17 @@ public class ShareDialog extends Dialog implements LocaleChangeObserver {
         setId(SHARE_DIALOG_ID);
 
         urlField = new TextField();
-        packageField = new TextField();
+        packageArea = new TextArea();
         latexArea = new TextArea();
 
         urlField.setValue(url);
         urlField.setClassName(FIELD_CLASS);
-        packageField.setValue(latexPackages);
-        packageField.setClassName(FIELD_CLASS);
+        packageArea.setValue(getTranslation("share.neededPackages"));
+        packageArea.setClassName(FIELD_CLASS);
         latexArea.setValue(latexCode);
         latexArea.setClassName(FIELD_CLASS);
 
-        layout.add(urlField, packageField, latexArea);
+        layout.add(urlField, packageArea, latexArea);
 
         add(headingLayout, layout);
     }
@@ -75,7 +73,7 @@ public class ShareDialog extends Dialog implements LocaleChangeObserver {
     public void localeChange(LocaleChangeEvent localeChangeEvent) {
         heading.setText(getTranslation("share.heading"));
         urlField.setLabel(getTranslation("share.url.label"));
-        packageField.setLabel(getTranslation("share.packages.label"));
+        packageArea.setLabel(getTranslation("share.packages.label"));
         latexArea.setLabel(getTranslation("share.latex.label"));
     }
 }

src/main/java/edu/kit/typicalc/view/content/typeinferencecontent/TypeInferenceView.java

@@ -82,7 +82,7 @@ public class TypeInferenceView extends VerticalLayout
     @Override
     public void shareButton() {
         UI.getCurrent().getPage().executeJs("return decodeURI(window.location.href)").then(url ->
-                new ShareDialog(url.asString(), lc.getLatexPackages(), lc.getTree()).open()
+                new ShareDialog(url.asString(), lc.getTree()).open()
         );
     }
 

src/main/java/edu/kit/typicalc/view/content/typeinferencecontent/latexcreator/LatexCreator.java

@@ -77,16 +77,6 @@ public class LatexCreator implements StepVisitor {
         return constraintsCreator.getTreeNumbers();
     }
 
-    /**
-     * Returns needed LaTeX packages
-     *
-     * @return the packages needed for the LaTeX-code from getTree() to work
-     */
-    public String getLatexPackages() {
-        return BUSSPROOFS;
-    }
-
-
     private String conclusionToLatex(Conclusion conclusion) {
         String typeAssumptions = typeAssumptionsToLatex(conclusion.getTypeAssumptions());
         String term = new LatexCreatorTerm(conclusion.getLambdaTerm()).getLatex();
@@ -155,8 +145,7 @@ public class LatexCreator implements StepVisitor {
         tree.insert(0, generateConclusion(varL, LABEL_VAR, UIC));
         String typeAbstraction = generateTypeAbstraction(varL.getTypeAbsInPremise());
         String instantiatedType = new LatexCreatorType(varL.getInstantiatedTypeAbs()).getLatex();
-        String premiseRight = DOLLAR_SIGN + typeAbstraction + INSTANTIATE_SIGN + instantiatedType
-                + DOLLAR_SIGN + NEW_LINE;
+        String premiseRight = DOLLAR_SIGN + typeAbstraction + INSTANTIATE_SIGN + instantiatedType + DOLLAR_SIGN;
         String premiseLeft = AXC + CURLY_LEFT + DOLLAR_SIGN + ALIGN_BEGIN
                 + generateVarStepPremise(varL).replace(DOLLAR_SIGN, "")
                 + SPACE + LATEX_NEW_LINE + SPACE // todo less replacement fixups

src/main/java/edu/kit/typicalc/view/content/typeinferencecontent/latexcreator/LatexCreatorConstants.java

@@ -74,6 +74,4 @@ public final class LatexCreatorConstants {
     protected static final String ALIGN_END = "\\end{aligned}";
     protected static final String SPLIT_BEGIN = "\\begin{split}";
     protected static final String SPLIT_END = "\\end{split}";
-
-    protected static final String BUSSPROOFS = "\\usepackage{bussproofs}";
 }

src/main/resources/language/general.properties

@@ -80,3 +80,7 @@ root.varLetLatex=\
 \\LeftLabel{\\textrm V{\\small AR}}\
 \\BinaryInfC{$\\Gamma \\vdash \\texttt{x} : \\tau$}\
 \\end{prooftree}
+
+share.neededPackages=\
+\\usepackage{bussproofs}\n\
+\\usepackage{amsmath}