Moved completiondialog-code to seperate file: selectiondialog.h/cc. The selectiondialog is now started from Source::ClangView. Some cleanup. See source.cc lines 340-345 for example use of SelectionDialog.

juci/selectiondialog.cc

@@ -0,0 +1,85 @@
+#include "selectiondialog.h"
+
+SelectionDialog::SelectionDialog(Source::View& view): Gtk::Dialog(), view(view), 
+      list_view_text(1, false, Gtk::SelectionMode::SELECTION_SINGLE) {
+  scrolled_window.set_policy(Gtk::PolicyType::POLICY_NEVER, Gtk::PolicyType::POLICY_NEVER);
+  list_view_text.set_enable_search(true);
+  list_view_text.set_headers_visible(false);
+  list_view_text.set_hscroll_policy(Gtk::ScrollablePolicy::SCROLL_NATURAL);
+  list_view_text.set_activate_on_single_click(true);
+}
+
+void SelectionDialog::show(const std::map<std::string, std::string>& rows) {
+  for (auto &i : rows) {
+    list_view_text.append(i.first);
+  }
+  scrolled_window.add(list_view_text);
+  get_vbox()->pack_start(scrolled_window);
+  set_transient_for((Gtk::Window&)(*view.get_toplevel()));
+  show_all();
+  int popup_x = get_width();
+  int popup_y = rows.size() * 20;
+  adjust(popup_x, popup_y);
+  
+  list_view_text.signal_row_activated().connect([this](const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn*) {
+    if(on_select)
+      on_select(list_view_text);
+    response(Gtk::RESPONSE_DELETE_EVENT);
+  });
+  
+  signal_focus_out_event().connect(sigc::mem_fun(*this, &SelectionDialog::close), false);
+  
+  run();
+}
+
+bool SelectionDialog::close(GdkEventFocus*) {
+  response(Gtk::RESPONSE_DELETE_EVENT);
+  return true;
+}
+
+void SelectionDialog::adjust(int current_x, int current_y) {
+  INFO("SelectionDialog set size");
+  int view_x = view.get_width();
+  int view_y = 150;
+  bool is_never_scroll_x = true;
+  bool is_never_scroll_y = true;
+  if (current_x > view_x) {
+    current_x = view_x;
+    is_never_scroll_x = false;
+  }
+  if (current_y > view_y) {
+    current_y = view_y;
+    is_never_scroll_y = false;
+  }
+  scrolled_window.set_size_request(current_x, current_y);
+  if (!is_never_scroll_x && !is_never_scroll_y) {
+    scrolled_window.set_policy(Gtk::PolicyType::POLICY_AUTOMATIC, Gtk::PolicyType::POLICY_AUTOMATIC);
+  } else if (!is_never_scroll_x && is_never_scroll_y) {
+    scrolled_window.set_policy(Gtk::PolicyType::POLICY_AUTOMATIC, Gtk::PolicyType::POLICY_NEVER);
+  } else if (is_never_scroll_x && !is_never_scroll_y) {
+    scrolled_window.set_policy(Gtk::PolicyType::POLICY_NEVER, Gtk::PolicyType::POLICY_AUTOMATIC);
+  }
+  
+  INFO("SelectionDialog set position");
+  Gdk::Rectangle temp1, temp2;
+  view.get_cursor_locations(view.get_source_buffer()->get_insert()->get_iter(), temp1, temp2);
+  int view_edge_x = 0;
+  int view_edge_y = 0;
+  int x, y;
+  view.buffer_to_window_coords(Gtk::TextWindowType::TEXT_WINDOW_WIDGET, 
+                               temp1.get_x(), temp1.get_y(), x, y);
+  Glib::RefPtr<Gdk::Window> gdkw = view.get_window(Gtk::TextWindowType::TEXT_WINDOW_WIDGET);
+  gdkw->get_origin(view_edge_x, view_edge_y);
+
+  x += view_edge_x;
+  y += view_edge_y;
+  if ((view_edge_x-x)*-1 > view.get_width()-current_x) {
+    x -= current_x;
+    if (x < view_edge_x) x = view_edge_x;
+  }
+  if ((view_edge_y-y)*-1 > view.get_height()-current_y) {
+    y -= (current_y+14) + 15;
+    if (x < view_edge_y) y = view_edge_y +15;
+  }
+  move(x, y+15);
+}

juci/selectiondialog.h

@@ -0,0 +1,19 @@
+#include "gtkmm.h"
+#include "logging.h"
+#include "source.h"
+
+class SelectionDialog : public Gtk::Dialog {
+public:
+  SelectionDialog(Source::View& view);
+  void show(const std::map<std::string, std::string>& rows);
+  bool close(GdkEventFocus*);
+  
+  std::function<void(Gtk::ListViewText& list_view_text)> on_select;
+  
+private:
+  void adjust(int current_x, int current_y);
+  
+  Source::View& view;
+  Gtk::ScrolledWindow scrolled_window;
+  Gtk::ListViewText list_view_text;
+};