introduce kmessagewidget in settings window

--use the nicely look kmessagewidget in order to
show inline internal messages to the user

app/settings/controllers/layoutscontroller.cpp

@@ -21,6 +21,7 @@
 #include "layoutscontroller.h"
 
 // local
+#include "../settingsdialog.h"
 #include "../universalsettings.h"
 #include "../delegates/activitiesdelegate.h"
 #include "../delegates/backgroundcmbdelegate.h"
@@ -49,6 +50,7 @@
 #include <KArchive/KTar>
 #include <KArchive/KArchiveEntry>
 #include <KArchive/KArchiveDirectory>
+#include <KMessageWidget>
 #include <KNotification>
 
 
@@ -56,7 +58,7 @@ namespace Latte {
 namespace Settings {
 namespace Controller {
 
-Layouts::Layouts(QDialog *parent, Latte::Corona *corona, QTableView *view)
+Layouts::Layouts(Latte::SettingsDialog *parent, Latte::Corona *corona, QTableView *view)
     : QObject(parent),
       m_parentDialog(parent),
       m_corona(corona),
@@ -847,7 +849,7 @@ void Layouts::saveColumnWidths()
 void Layouts::on_nameDuplicatedFrom(const QString &provenId, const QString &trialId)
 {
     //! duplicated layout name
-    auto msg = new QMessageBox(m_parentDialog);
+    /*auto msg = new QMessageBox(m_parentDialog);
     msg->setIcon(QMessageBox::Warning);
     msg->setWindowTitle(i18n("Layout Warning"));
     msg->setText(i18n("There are layouts with the same name, that is not permitted!!! Please update these names to re-apply the changes..."));
@@ -874,7 +876,33 @@ void Layouts::on_nameDuplicatedFrom(const QString &provenId, const QString &tria
     });
 
 
-    msg->open();
+    msg->open();*/
+
+    int pRow = rowForId(provenId);
+    int tRow = rowForId(trialId);
+
+    if (pRow >= 0) {
+        QItemSelectionModel::SelectionFlags flags = QItemSelectionModel::ClearAndSelect;
+        QItemSelection rowSelection;
+
+        QModelIndex pIndexS = m_proxyModel->index(pRow, Model::Layouts::BACKGROUNDCOLUMN);
+        QModelIndex pIndexE = m_proxyModel->index(pRow, Model::Layouts::SHAREDCOLUMN);
+
+        rowSelection.select(pIndexS, pIndexE);
+
+        m_view->selectionModel()->select(rowSelection, flags);
+    }
+
+    m_parentDialog->showInlineMessage(i18n("Layouts with same name are not permitted! Please provide unique names to proceed..."), KMessageWidget::Error, 4000);
+
+    QModelIndex tIndex = m_proxyModel->index(tRow, Model::Layouts::NAMECOLUMN);
+
+    //! avoid losing focuse
+    QTimer::singleShot(0, [this, tIndex]() {
+        m_view->edit(tIndex);
+    });
+
+
 }
 
 }

app/settings/controllers/layoutscontroller.h

@@ -38,6 +38,7 @@
 namespace Latte {
 class Corona;
 class CentralLayout;
+class SettingsDialog;
 }
 
 namespace Latte {
@@ -49,7 +50,7 @@ class Layouts : public QObject
     Q_OBJECT
 
 public:
-    explicit Layouts(QDialog *parent, Latte::Corona *corona, QTableView *view);
+    explicit Layouts(Latte::SettingsDialog *parent, Latte::Corona *corona, QTableView *view);
     ~Layouts();
 
     QAbstractItemModel *model() const;
@@ -100,7 +101,7 @@ private:
     QString uniqueLayoutName(QString name);
 
 private:
-    QDialog *m_parentDialog{nullptr};
+    Latte::SettingsDialog *m_parentDialog{nullptr};
     Latte::Corona *m_corona{nullptr};
     QTableView *m_view{nullptr};
     Settings::Layouts::HeaderView *m_headerView{nullptr};

app/settings/settingsdialog.cpp

@@ -95,6 +95,7 @@ SettingsDialog::SettingsDialog(QWidget *parent, Latte::Corona *corona)
 
     ui->screenTrackerSpinBox->setValue(m_corona->universalSettings()->screenTrackerInterval());
     ui->outlineSpinBox->setValue(m_corona->themeExtended()->outlineWidth());
+    ui->messageWidget->setVisible(false);
 
     //! About Menu
     QMenuBar *menuBar = new QMenuBar(this);
@@ -216,6 +217,12 @@ SettingsDialog::SettingsDialog(QWidget *parent, Latte::Corona *corona)
     m_activitiesTimer.setInterval(750);
     connect(&m_activitiesTimer, &QTimer::timeout, this, &SettingsDialog::updateWindowActivities);
     m_activitiesTimer.start();
+
+    m_hideInlineMessageTimer.setSingleShot(true);
+    m_hideInlineMessageTimer.setInterval(2000);
+    connect(&m_hideInlineMessageTimer, &QTimer::timeout, this, [&]() {
+        ui->messageWidget->animatedHide();
+    });
 }
 
 SettingsDialog::~SettingsDialog()
@@ -638,6 +645,13 @@ void SettingsDialog::on_switchButton_clicked()
 {
     Settings::Data::Layout selectedLayout = m_layoutsController->selectedLayout();
 
+    bool hasChanges = (selectedLayout.nameWasEdited() || m_layoutsController->dataAreChanged());
+
+    if (hasChanges) {
+        showInlineMessage(i18n("You need to save your changes before switching to other layout."), KMessageWidget::Warning);
+        return;
+    }
+
     if (!m_layoutsController->selectedLayoutIsCurrentActive()) {
         bool appliedShared = m_layoutsController->inMultipleMode() && selectedLayout.isShared();
         bool freeActivitiesLayoutUpdated{false};
@@ -726,9 +740,7 @@ void SettingsDialog::updatePerLayoutButtonsState()
     Settings::Data::Layout selectedLayout = m_layoutsController->selectedLayout();
 
     //! Switch Button
-    if (selectedLayout.nameWasEdited()
-            || m_layoutsController->dataAreChanged()
-            || (m_layoutsController->inMultipleMode() && selectedLayout.isShared())
+    if ((m_layoutsController->inMultipleMode() && selectedLayout.isShared())
             || m_layoutsController->selectedLayoutIsCurrentActive()) {
         ui->switchButton->setEnabled(false);
     } else {
@@ -857,5 +869,36 @@ void SettingsDialog::saveAllChanges()
     m_layoutsController->save();
 }
 
+void SettingsDialog::showInlineMessage(const QString &msg, const KMessageWidget::MessageType &type, const int &hideInterval)
+{
+    if (msg.isEmpty()) {
+        return;
+    }
+
+    m_hideInlineMessageTimer.stop();
+
+    if (ui->messageWidget->isVisible()) {
+        ui->messageWidget->animatedHide();
+    }
+
+    ui->messageWidget->setText(msg);
+
+    // TODO: wrap at arbitrary character positions once QLabel can do this
+    // https://bugreports.qt.io/browse/QTBUG-1276
+    ui->messageWidget->setWordWrap(true);
+    ui->messageWidget->setMessageType(type);
+    ui->messageWidget->setWordWrap(false);
+
+    const int unwrappedWidth = ui->messageWidget->sizeHint().width();
+    ui->messageWidget->setWordWrap(unwrappedWidth > size().width());
+
+    ui->messageWidget->animatedShow();
+
+    if (hideInterval > 0) {
+        m_hideInlineMessageTimer.setInterval(hideInterval);
+        m_hideInlineMessageTimer.start();
+    }
+}
+
 }//end of namespace
 

app/settings/settingsdialog.h

@@ -36,6 +36,7 @@
 
 // KDE
 #include <KHelpMenu>
+#include <KMessageWidget>
 
 namespace Ui {
 class SettingsDialog;
@@ -65,6 +66,8 @@ public:
     void requestImagesDialog(int row);
     void requestColorsDialog(int row);
 
+    void showInlineMessage(const QString &msg, const KMessageWidget::MessageType &type, const int &hideInterval = 0);
+
 private slots:
     // auto connections
     void on_newButton_clicked();
@@ -111,6 +114,8 @@ private:
 
     //! workaround to assign ALLACTIVITIES during startup
     QTimer m_activitiesTimer;
+    //! Timer to hide the inline message widget
+    QTimer m_hideInlineMessageTimer;
 
     //! original data
     QList<int> o_settingsOriginalData;

app/settings/settingsdialog.ui

@@ -1185,6 +1185,9 @@ This tracker is used in order to not lose any screen related update.</string>
      </widget>
     </widget>
    </item>
+   <item>
+    <widget class="KMessageWidget" name="messageWidget"/>
+   </item>
    <item>
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
@@ -1197,6 +1200,13 @@ This tracker is used in order to not lose any screen related update.</string>
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KMessageWidget</class>
+   <extends>QFrame</extends>
+   <header>kmessagewidget.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections>
   <connection>