@Override
public void setContent(String content) {
this.content = content;
isChanged = false;
if (board != null && invalidated) {
invalidated = false;
board.setContent(content);
}
}
/**
* This method deletes all reference to a {@link Context} so {@link Activity} could be properly
* recreated
*/
@Override
public void onDestroyView() {
selectorBegin = textSelector.getBeginObject();
selectorEnd = textSelector.getEndObject();
selectorNoBegin = textSelector.isNoBegin();
selectorNoEnd = textSelector.isNoEnd();
if (mode != null) {
mode.finish();
mode = null;
}
super.onDestroyView();
menu.destroyViews();
editorScrollX = board.getEditorScrollX();
editorScrollY = board.getEditorScrollY();
lines = board.getLines();
board.destroyViews();
board = null;
textSelector.destroy();
textSelector = null;
}
@Override
public String getContent(boolean changed) {
if (changed) isChanged = false;
return board.toString();
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
DisplayMetrics metrics = getResources().getDisplayMetrics();
int inch = (int) (metrics.density * 160);
final ExtendedFrameLayout layout = new ExtendedFrameLayout(getActivity());
layout.setId(BaseActivity.generateViewId());
layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
buttonSize = (int) (inch / 3.0f);
HorizontalScrollView scrollView = new HorizontalScrollView(getActivity());
scrollView.setHorizontalScrollBarEnabled(false);
layout.addView(scrollView);
scrollView.setLayoutParams(
new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
if (menu == null) {
// load and build menu if necessary
menu = new LaTeXMenu();
EquationEditorPlugin plugin = EquationEditorPlugin.getPlugin();
menu.setButtonBackgroundResource(R.drawable.menu_item);
menu.setSpecialButtonBackgroundResource(R.drawable.menu_item_special);
int pixelsValue = 4;
float d = layout.getContext().getResources().getDisplayMetrics().density;
menu.setMarginButton((int) (pixelsValue * d));
File assets =
new File(EquationEditorPlugin.getPluginDirectoryStatic(getActivity()), "assets");
assets.mkdir();
File out = new File(assets, "mathMenu.xml");
plugin.loadAsset(getActivity(), out, "mathMenu.xml");
FileReader reader = null;
try {
reader = new FileReader(out);
// Creates items in menu
menu.loadData(getActivity(), reader);
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (reader != null)
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
menu.setFragmentPluginListener(listener.getFragmentPluginListener());
// set context for menu
RelativeLayout menuLayout =
menu.createLayout(
getActivity(), buttonSize, buttonSize, buttonSize * 4, (int) (inch * 1.5f));
scrollView.addView(menuLayout);
menuLayout.setLayoutParams(
new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
if (lines == null)
// Creates a board for the first time
board = new EditorBoard(this, menu, menu.getLatexMap(), menu.getUnicodeLatex());
else {
// Creates a board with already parsed objects. It is typically used after a rotation. For
// faster reaction time.
board =
new EditorBoard(this, menu, menu.getLatexMap(), menu.getUnicodeLatex(), lines, content);
board.setEditorScrollX(editorScrollX);
board.setEditorScrollY(editorScrollY);
if (isChanged) board.makeDirty();
}
board.setId(BaseActivity.generateViewId());
board.setOnContentChangedListener(listener);
board.setScreen(metrics.widthPixels, metrics.heightPixels);
layout.addView(board, 0);
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) board.getLayoutParams();
params.width = LayoutParams.MATCH_PARENT;
params.height = LayoutParams.MATCH_PARENT;
params.topMargin = buttonSize;
// Place equations drawing below the menu
board.setLayoutParams(params);
menu.setOnItemClickListener(
new LaTeXMenu.OnItemMenuClickListener() {
@Override
public void onClick(LaTeXMenu menu, LaTeXMenuButton menuButton, LaTeXButton button) {
board.addObject(button.getDataObject(), button.getAddon(), button.isNormal());
if (mode != null) mode.finish();
}
});
board.setOnContentChangedListener(
new OnContentChangedListener() {
@Override
public Task requestPDF() {
if (EditorFragment.this.listener != null)
return EditorFragment.this.listener.requestPDF();
return null;
}
@Override
public void onContentChanged() {
isChanged = true;
if (listener != null) listener.onContentChanged();
}
@Override
public AbstractPluginFragment getParentFragment() {
return listener.getParentFragment();
}
@Override
public FragmentPluginListener getFragmentPluginListener() {
if (listener != null) return listener.getFragmentPluginListener();
return null;
}
@Override
public ActionMode startActionMode(Callback textSelector) {
if (listener != null) return listener.startActionMode(textSelector);
return null;
}
@Override
public void openFile(String path) {}
@Override
public void openData(EditorPlugin plugin, String data, int start, int end) {}
@Override
public void requestInsert() {}
});
textSelector = new ObjectSelector(board);
textSelector.setOnMovingHandle(
new ObjectSelector.OnMovingHandle() {
@Override
public void handleStartedMoving() {
layout.stopLongPressed();
}
});
textSelector.setOnSelecting(
new ObjectSelector.OnSelecting() {
@Override
public void selectingStopped() {
board.setFocusable(false);
board.setFocusableInTouchMode(false);
}
@Override
public void selectingStarted() {
board.setFocusable(true);
board.setFocusableInTouchMode(true);
}
});
if (selectorBegin != null && selectorEnd != null) {
textSelector.setSelection(selectorBegin, selectorEnd, selectorNoBegin, selectorNoEnd);
mode = listener.startActionMode(textSelector);
}
return layout;
}