From cbe54c114d95ab1d94331af7e8070ee9f36346c2 Mon Sep 17 00:00:00 2001
From: Igor Belitskiy <goga.belitskiy.00@mail.eu>
Date: Thu, 4 May 2023 15:30:38 +0600
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B0=20=D0=B2=D0=B0=D0=BB=D0=B8=D0=B4=D0=B0=D1=86=D0=B8?=
 =?UTF-8?q?=D1=8F=20treeView=20"melody"?=
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---
 source/ubl-settings-bootloader.cc | 22 ++++++++++++++++++++++
 source/ubl-settings-bootloader.h  |  1 +
 2 files changed, 23 insertions(+)

diff --git a/source/ubl-settings-bootloader.cc b/source/ubl-settings-bootloader.cc
index 569aa6c..7ab2130 100755
--- a/source/ubl-settings-bootloader.cc
+++ b/source/ubl-settings-bootloader.cc
@@ -883,9 +883,31 @@ void MainWindow::remove_line_melody(const Gtk::TreeModel::Path&, const Gtk::Tree
         imgInfo->set_from_icon_name(icon_checked, Gtk::ICON_SIZE_MENU);
         lblWarning->set_text("");
     }
+    this->validate_melody();
     
 }
 
+void MainWindow::validate_melody() {
+    Glib::RefPtr<Gtk::TreeModel> treeViewMelody_model = treeViewMelody->get_model();
+    Gtk::TreeModel::Children children = treeViewMelody_model->children();
+    int count = 0;
+    for(Gtk::TreeModel::iterator iter = children.begin(); iter != children.end(); ++iter) {
+        Gtk::TreeModel::Row row = *iter;
+        if (row[m_columns_melody.check_button]) {
+            count+=1;
+        }
+    }
+    if (count>1) {
+        for(Gtk::TreeModel::iterator iter = children.begin(); iter != children.end(); ++iter) {
+            Gtk::TreeModel::Row row = *iter;
+            if (row[m_columns_melody.check_button]) {
+                count-=1;
+                row[m_columns_melody.check_button] = false;
+            }
+        }
+    }
+}
+
 bool MainWindow::focus_tree_view(GdkEventFocus*) {
     treeViewKernel->set_can_focus(false);
     treeViewIPT->set_can_focus(false);
diff --git a/source/ubl-settings-bootloader.h b/source/ubl-settings-bootloader.h
index f379116..21ec440 100644
--- a/source/ubl-settings-bootloader.h
+++ b/source/ubl-settings-bootloader.h
@@ -336,6 +336,7 @@ public:
     void remove_user();
     void remove_melody();
     void settings();
+    void validate_melody();
     void remove_line_melody(const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter);
     void view_add_colums_user(Gtk::TreeView &treeView);
     void view_add_colums_melody(Gtk::TreeView &treeView);