make resizable panels

fix duration bug

Azaion.Annotator/MainWindow.xaml

@@ -62,6 +62,7 @@
             <ColumnDefinition Width="250" />
             <ColumnDefinition Width="4"/>
             <ColumnDefinition Width="*" />
+            <ColumnDefinition Width="4"/>
             <ColumnDefinition Width="200" />
         </Grid.ColumnDefinitions>
 
@@ -81,10 +82,11 @@
             </MenuItem>
         </Menu>
         <Grid
+            HorizontalAlignment="Stretch"
             Grid.Column="0"
             Grid.Row="1">
             <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="220" />
+                <ColumnDefinition Width="*" />
                 <ColumnDefinition Width="30"/>
             </Grid.ColumnDefinitions>
             <TextBox 
@@ -124,7 +126,7 @@
                                     DisplayMemberBinding="{Binding Path=Name}"/>
                     <GridViewColumn Width="Auto" 
                                     Header="Тривалість" 
-                                    DisplayMemberBinding="{Binding Path=Duration}"/>
+                                    DisplayMemberBinding="{Binding Path=DurationStr}"/>
                 </GridView>
             </ListView.View>
         </ListView>
@@ -144,7 +146,7 @@
                   CanUserResizeColumns="False">
             <DataGrid.Columns>
                 <DataGridTemplateColumn
-                    Width="60" 
+                    Width="50"
                     Header="Клавіша"
                     CanUserSort="False">
                     <DataGridTemplateColumn.HeaderStyle>
@@ -178,6 +180,7 @@
             ResizeDirection="Columns"
             Grid.Column="1"
             Grid.Row="1"
+            Grid.RowSpan="3"
             ResizeBehavior="PreviousAndNext"
             HorizontalAlignment="Stretch"
             VerticalAlignment="Stretch"
@@ -189,9 +192,18 @@
             x:Name="VideoView">
             <controls:CanvasEditor x:Name="Editor" Background="#01000000" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" />
         </wpf:VideoView>
-        
+        <GridSplitter
+            Background="DarkGray"
+            ResizeDirection="Columns"
+            Grid.Column="3"
+            Grid.Row="1"
+            Grid.RowSpan="3"
+            ResizeBehavior="PreviousAndNext"
+            HorizontalAlignment="Stretch"
+            VerticalAlignment="Stretch"
+        />
         <DataGrid x:Name="DgAnnotations"
-                  Grid.Column="3"
+                  Grid.Column="4"
                   Grid.Row="1"
                   Grid.RowSpan="3"
                   Background="Black"