UI Improvements: Planungsdialog, Fehlzeitendarstellung, Vorauswahl der Einheit

LehrerApp.Desktop/Views/ClassTeacher/ClassTeacherAbsencesView.axaml

@@ -27,9 +27,20 @@
     <Style Selector="TextBlock.status.danger">
       <Setter Property="Foreground" Value="{DynamicResource AppStatusDangerBrush}"/>
     </Style>
+    <Style Selector="Button.viewMode">
+      <Setter Property="Background" Value="Transparent"/>
+      <Setter Property="BorderBrush" Value="{DynamicResource AppFilterBorderBrush}"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="Padding" Value="12,6"/>
+    </Style>
+    <Style Selector="Button.viewMode.active">
+      <Setter Property="Background" Value="{DynamicResource AppFilterActiveBackgroundBrush}"/>
+      <Setter Property="BorderBrush" Value="{DynamicResource AppFilterActiveBorderBrush}"/>
+      <Setter Property="Foreground" Value="{DynamicResource AppFilterActiveForegroundBrush}"/>
+    </Style>
   </UserControl.Styles>
 
-  <Grid RowDefinitions="Auto,Auto,*,Auto" Margin="16" RowSpacing="10">
+  <Grid RowDefinitions="Auto,Auto,Auto,*,Auto" Margin="16" RowSpacing="10">
     <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
       <StackPanel>
         <TextBlock Text="Fehlzeiten" FontSize="22" FontWeight="SemiBold"/>
@@ -39,7 +50,20 @@
               IsEnabled="{Binding !Busy}" Background="Transparent" Foreground="{DynamicResource AppAccentTextBrush}" VerticalAlignment="Center"/>
     </Grid>
 
-    <Border Grid.Row="1" Classes="filterCard">
+    <Grid Grid.Row="1" ColumnDefinitions="Auto,Auto,*,Auto,Auto,Auto" ColumnSpacing="6">
+      <Button Grid.Column="0" Content="Liste" Classes="viewMode" Classes.active="{Binding !ShowMonthlyCalendar}"
+              Command="{Binding ShowAbsenceListCommand}"/>
+      <Button Grid.Column="1" Content="Monatsübersicht" Classes="viewMode" Classes.active="{Binding ShowMonthlyCalendar}"
+              Command="{Binding ShowCalendarCommand}"/>
+      <Button Grid.Column="3" Content="‹" Width="36" Command="{Binding PreviousCalendarMonthCommand}"
+              IsVisible="{Binding ShowMonthlyCalendar}" AutomationProperties.Name="Vorheriger Monat"/>
+      <TextBlock Grid.Column="4" Text="{Binding CalendarMonthLabel}" FontSize="15" FontWeight="SemiBold"
+                 VerticalAlignment="Center" Margin="8,0" IsVisible="{Binding ShowMonthlyCalendar}"/>
+      <Button Grid.Column="5" Content="›" Width="36" Command="{Binding NextCalendarMonthCommand}"
+              IsVisible="{Binding ShowMonthlyCalendar}" AutomationProperties.Name="Nächster Monat"/>
+    </Grid>
+
+    <Border Grid.Row="2" Classes="filterCard" IsVisible="{Binding !ShowMonthlyCalendar}">
       <Grid RowDefinitions="Auto,Auto" RowSpacing="8">
         <Grid Grid.Row="0" ColumnDefinitions="155,Auto,*,Auto,*" ColumnSpacing="8">
           <ComboBox Grid.Column="0" SelectedIndex="{Binding QuickRangeIndex, Mode=TwoWay}">
@@ -59,10 +83,11 @@
       </Grid>
     </Border>
 
-    <Grid Grid.Row="2">
+    <Grid Grid.Row="3">
       <DataGrid ItemsSource="{Binding AbsenceEntries}" AutoGenerateColumns="False" IsReadOnly="True"
                 GridLinesVisibility="Horizontal" BorderBrush="{DynamicResource AppCardBorderBrush}" BorderThickness="1"
-                CanUserResizeColumns="True" CanUserSortColumns="True" RowHeight="48">
+                CanUserResizeColumns="True" CanUserSortColumns="True" RowHeight="48"
+                IsVisible="{Binding !ShowMonthlyCalendar}">
         <DataGrid.Columns>
           <DataGridTextColumn Header="Datum" Binding="{Binding DateLabel}" Width="105"/>
           <DataGridTextColumn Header="Schüler*in" Binding="{Binding StudentDisplayName}" Width="1.3*"/>
@@ -92,11 +117,61 @@
           <DataGridTextColumn Header="Grund / Notiz" Binding="{Binding DetailLabel}" Width="2*"/>
         </DataGrid.Columns>
       </DataGrid>
-      <StackPanel IsVisible="{Binding !HasAbsenceEntries}" HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="5">
+      <StackPanel IsVisible="{Binding ShowAbsenceListEmpty}" HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="5">
         <TextBlock Text="Keine Fehlzeiten im gewählten Zeitraum" FontWeight="SemiBold"/>
         <TextBlock Text="Passe Zeitraum oder Schülerfilter an." FontSize="12" Opacity="0.55"/>
       </StackPanel>
+
+      <Grid IsVisible="{Binding ShowMonthlyCalendar}" RowDefinitions="Auto,Auto,*" RowSpacing="8">
+        <WrapPanel Grid.Row="0" ItemSpacing="12" LineSpacing="6">
+          <TextBlock Text="V  verspätet" Foreground="#EF6C00" FontSize="11" FontWeight="SemiBold"/>
+          <TextBlock Text="A  abwesend" Foreground="#1565C0" FontSize="11" FontWeight="SemiBold"/>
+          <TextBlock Text="U  unentschuldigt" Foreground="#C62828" FontSize="11" FontWeight="SemiBold"/>
+          <TextBlock Text="E  entschuldigt" Foreground="#2E7D32" FontSize="11" FontWeight="SemiBold"/>
+          <TextBlock Text="!  negativer Klassenbucheintrag" Foreground="#8E24AA" FontSize="11" FontWeight="SemiBold"/>
+          <CheckBox Content="Hausaufgaben (H) einblenden" IsChecked="{Binding IncludeHomeworkInCalendar}"
+                    FontSize="11" VerticalAlignment="Center"/>
+        </WrapPanel>
+        <Grid Grid.Row="1" ColumnDefinitions="*,*,*,*,*" Margin="0,2,0,0">
+          <TextBlock Grid.Column="0" Text="Montag" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+          <TextBlock Grid.Column="1" Text="Dienstag" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+          <TextBlock Grid.Column="2" Text="Mittwoch" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+          <TextBlock Grid.Column="3" Text="Donnerstag" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+          <TextBlock Grid.Column="4" Text="Freitag" FontWeight="SemiBold" HorizontalAlignment="Center"/>
+        </Grid>
+        <ScrollViewer Grid.Row="2">
+          <ItemsControl ItemsSource="{Binding CalendarDays}">
+            <ItemsControl.ItemsPanel>
+              <ItemsPanelTemplate><UniformGrid Columns="5"/></ItemsPanelTemplate>
+            </ItemsControl.ItemsPanel>
+            <ItemsControl.ItemTemplate>
+              <DataTemplate x:DataType="vm:ClassTeacherCalendarDay">
+                <Border BorderBrush="{DynamicResource AppCardBorderBrush}" BorderThickness="1"
+                        Background="{DynamicResource AppCardBackgroundBrush}" MinHeight="112" Padding="7" Margin="2">
+                  <StackPanel Spacing="5">
+                    <TextBlock Text="{Binding DayLabel}" FontWeight="SemiBold" HorizontalAlignment="Right"/>
+                    <ItemsControl ItemsSource="{Binding Events}">
+                      <ItemsControl.ItemTemplate>
+                        <DataTemplate x:DataType="vm:ClassTeacherCalendarEvent">
+                          <Grid ColumnDefinitions="22,*" Margin="0,1" ToolTip.Tip="{Binding Tooltip}">
+                            <Border Width="18" Height="18" CornerRadius="9" Background="{Binding ColorHex}">
+                              <TextBlock Text="{Binding Code}" Foreground="White" FontSize="10" FontWeight="Bold"
+                                         HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                            </Border>
+                            <TextBlock Grid.Column="1" Text="{Binding StudentName}" FontSize="10"
+                                       TextTrimming="CharacterEllipsis" VerticalAlignment="Center"/>
+                          </Grid>
+                        </DataTemplate>
+                      </ItemsControl.ItemTemplate>
+                    </ItemsControl>
+                  </StackPanel>
+                </Border>
+              </DataTemplate>
+            </ItemsControl.ItemTemplate>
+          </ItemsControl>
+        </ScrollViewer>
+      </Grid>
     </Grid>
-    <TextBlock Grid.Row="3" Text="{Binding Status}" FontSize="11" Opacity="0.6"/>
+    <TextBlock Grid.Row="4" Text="{Binding Status}" FontSize="11" Opacity="0.6"/>
   </Grid>
 </UserControl>

LehrerApp.Desktop/Views/Groups/PlanningTabView.axaml

@@ -6,9 +6,10 @@
 
   <Grid RowDefinitions="Auto,2*,Auto,Auto,2*" Margin="16">
 
-    <!-- Einheiten-Toolbar -->
-    <Grid Grid.Row="0" ColumnDefinitions="*,Auto" Margin="0,0,0,8">
-      <StackPanel Grid.Column="0" Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
+    <!-- Einheiten-Toolbar: Aktionen bewusst unter der Überschrift und in umbruchfähigen
+         Gruppen. So kollidieren Beschriftung und Buttons auch in schmaleren Fenstern nicht. -->
+    <Grid Grid.Row="0" RowDefinitions="Auto,Auto" Margin="0,0,0,8" RowSpacing="6">
+      <StackPanel Grid.Row="0" Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
         <TextBlock Text="Unterrichtseinheiten" FontSize="14" FontWeight="SemiBold"
                    VerticalAlignment="Center"/>
         <Button Content="↕ JSON" FontSize="11" Padding="7,3"
@@ -30,13 +31,16 @@
           </Button.Flyout>
         </Button>
       </StackPanel>
-      <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="8">
-        <Button Content="＋ Einheit"          Command="{Binding AddUnitCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-        <Button Content="Bearbeiten"          Command="{Binding EditUnitCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-        <Button Content="Als Vorlage kopieren" Command="{Binding CopyUnitCommand}"/>
-        <Button Content="Löschen"             Command="{Binding DeleteUnitCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-        <Button Content="🤖 KI-Unterstützung" Command="{Binding AiAssistCommand}"/>
-      </StackPanel>
+      <WrapPanel Grid.Row="1" ItemSpacing="6" LineSpacing="6">
+        <Button Content="＋ Einheit" Command="{Binding AddUnitCommand}" IsEnabled="{Binding !IsReadOnly}"/>
+        <Button Content="✎" Width="38" Command="{Binding EditUnitCommand}" IsEnabled="{Binding !IsReadOnly}"
+                ToolTip.Tip="Ausgewählte Einheit bearbeiten" AutomationProperties.Name="Einheit bearbeiten"/>
+        <Button Content="⧉" Width="38" Command="{Binding CopyUnitCommand}"
+                ToolTip.Tip="Als Vorlage in eine andere Lerngruppe kopieren" AutomationProperties.Name="Einheit als Vorlage kopieren"/>
+        <Button Content="⌫" Width="38" Command="{Binding DeleteUnitCommand}" IsEnabled="{Binding !IsReadOnly}"
+                ToolTip.Tip="Ausgewählte Einheit löschen" AutomationProperties.Name="Einheit löschen"/>
+        <Button Content="✦ KI-Unterstützung" Command="{Binding AiAssistCommand}"/>
+      </WrapPanel>
     </Grid>
 
     <!-- Einheiten-Tabelle -->
@@ -76,30 +80,34 @@
 
     <Separator Grid.Row="2" Margin="0,0,0,8"/>
 
-    <!-- Stunden-Toolbar -->
-    <Grid Grid.Row="3" ColumnDefinitions="*,Auto" Margin="0,0,0,8">
-      <StackPanel Grid.Column="0" Orientation="Horizontal" VerticalAlignment="Center">
+    <!-- Stunden-Toolbar: häufige Aktionen bleiben beschriftet, sekundäre Aktionen sind als
+         kompakte Symbolbuttons gruppiert. Das WrapPanel darf bei Bedarf umbrechen. -->
+    <Grid Grid.Row="3" RowDefinitions="Auto,Auto" Margin="0,0,0,8" RowSpacing="6">
+      <StackPanel Grid.Row="0" Orientation="Horizontal" VerticalAlignment="Center">
         <TextBlock Text="Stunden" FontSize="14" FontWeight="SemiBold"/>
         <TextBlock Text="{Binding SelectedUnitTitleSuffix}" FontSize="14" FontWeight="SemiBold"/>
       </StackPanel>
-      <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="8">
-        <Button Content="＋ Stunde"              Command="{Binding AddLessonCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-        <Button Content="Serie erzeugen"         Command="{Binding GenerateLessonSeriesCommand}"
+      <WrapPanel Grid.Row="1" ItemSpacing="6" LineSpacing="6">
+        <Button Content="＋ Stunde" Command="{Binding AddLessonCommand}" IsEnabled="{Binding !IsReadOnly}"/>
+        <Button Content="＋ Serie" Command="{Binding GenerateLessonSeriesCommand}"
                 IsEnabled="{Binding !IsReadOnly}"
                 ToolTip.Tip="Stunden für alle Termine aus dem Stundenplan im gewählten Zeitraum anlegen."/>
-        <Button Content="Anzeigen"               Command="{Binding ShowLessonCommand}"
+        <Button Content="Anzeigen" Command="{Binding ShowLessonCommand}"
                 ToolTip.Tip="Verlaufsplan schreibgeschützt und größer anzeigen — zum Mitnehmen in den Unterricht."/>
-        <Button Content="Bearbeiten"             Command="{Binding EditLessonCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-        <Button Content="Verschieben"            Command="{Binding MoveLessonCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-        <Button Content="Einheit wechseln"       Command="{Binding ChangeLessonUnitCommand}" IsEnabled="{Binding !IsReadOnly}"
+        <Button Content="✎" Width="38" Command="{Binding EditLessonCommand}" IsEnabled="{Binding !IsReadOnly}"
+                ToolTip.Tip="Ausgewählte Stunde bearbeiten" AutomationProperties.Name="Stunde bearbeiten"/>
+        <Button Content="↔" Width="38" Command="{Binding MoveLessonCommand}" IsEnabled="{Binding !IsReadOnly}"
+                ToolTip.Tip="Ausgewählte Stunde verschieben" AutomationProperties.Name="Stunde verschieben"/>
+        <Button Content="⇄" Width="38" Command="{Binding ChangeLessonUnitCommand}" IsEnabled="{Binding !IsReadOnly}"
                 ToolTip.Tip="Ordnet die ausgewählte Stunde einer anderen Einheit derselben Gruppe zu."/>
-        <Button Content="Status weiter" Command="{Binding AdvanceLessonStatusCommand}" IsEnabled="{Binding !IsReadOnly}"
+        <Button Content="Status ›" Command="{Binding AdvanceLessonStatusCommand}" IsEnabled="{Binding !IsReadOnly}"
                 ToolTip.Tip="Entwurf/Geplant → Bereit → Durchgeführt"/>
-        <Button Content="Sitzung erzeugen"       Command="{Binding CreateParticipationSessionCommand}"
+        <Button Content="＋ Sitzung" Command="{Binding CreateParticipationSessionCommand}"
                 IsEnabled="{Binding !IsReadOnly}"
                 ToolTip.Tip="Legt eine Mitarbeitssitzung mit Datum und Thema dieser Stunde an."/>
-        <Button Content="Löschen"                Command="{Binding DeleteLessonCommand}" IsEnabled="{Binding !IsReadOnly}"/>
-      </StackPanel>
+        <Button Content="⌫" Width="38" Command="{Binding DeleteLessonCommand}" IsEnabled="{Binding !IsReadOnly}"
+                ToolTip.Tip="Ausgewählte Stunde löschen" AutomationProperties.Name="Stunde löschen"/>
+      </WrapPanel>
     </Grid>
 
     <!-- Stunden-Tabelle -->

LehrerApp.Desktop/Views/Groups/UnitDialog.axaml

@@ -41,6 +41,10 @@
           <TextBlock Text="Status" FontSize="12" Opacity="0.7"/>
           <ComboBox ItemsSource="{Binding StatusOptions}" SelectedItem="{Binding StatusName}"
                     HorizontalAlignment="Stretch"/>
+          <Border Background="#FFF3CD" BorderBrush="#D97706" BorderThickness="1" CornerRadius="5"
+                  Padding="9,6" IsVisible="{Binding StatusNotice, Converter={x:Static StringConverters.IsNotNullOrEmpty}}">
+            <TextBlock Text="{Binding StatusNotice}" Foreground="#92400E" FontSize="11" TextWrapping="Wrap"/>
+          </Border>
         </StackPanel>
 
         <StackPanel Spacing="4">