<ScrollViewer x:Name="imagescrollviewer" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<!--<Viewbox>-->
<Image x:Name="im" Source="{Binding JpgImageSource}" RenderTransformOrigin="0.5,0.5" Stretch="Uniform">
<Image.RenderTransform>
<ScaleTransform ScaleX="{Binding Value,ElementName=scaleslider}" ScaleY="{Binding Value,ElementName=scaleslider}"/>
</Image.RenderTransform>
</Image>
<!--</Viewbox>-->
</ScrollViewer>
<Slider x:Name="scaleslider" Orientation="Vertical" Height="100" Margin="5" HorizontalAlignment="Center" Maximum="4" Minimum="0.2" Value="1"/>
The scrollbar doesn't adpat to the image size properly. When the image gets bigger, the scrollbar should be shorter and vice versa. Is there some way to figure out the problem?
How to know the slider value when the image is fit to the window?
I suppose you need to use LayoutTransform instead of RenderTransform. This blog post describes the difference very well.
<Image x:Name="im" Source="{Binding JpgImageSource}" >
<Image.LayoutTransform>
<ScaleTransform ScaleX="{Binding Value,ElementName=scaleslider}" ScaleY="{Binding Value,ElementName=scaleslider}"/>
</Image.LayoutTransform>
</Image>
Related
I want to make a set of buttons with 90 degree rotated text. I created the layout I wanted but found when I attached it to a button the layout clipped according to the button's (unrotated) layout. I haven't been able to figure out what's going on, but I created a simplified case without a button. Here's my XAML:
<Border Height="100" Width="50" BorderThickness="1" BorderBrush="Black">
<TextBlock>This is a test</TextBlock>
</Border>
This produces a border with clipped text (as expected)
But if I rotate the text, resulting in this XAML:
<Border Height="100" Width="50" BorderThickness="1" BorderBrush="Black">
<TextBlock RenderTransformOrigin="0.5,0.5">
<TextBlock.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform Angle="90"/>
<TranslateTransform/>
</TransformGroup>
</TextBlock.RenderTransform>This is a test</TextBlock>
</Border>
the text still clips according to the ''width'' of the enclosing border, not the height.
I'm sure I could size the border to include the text and rotate the border instead, and likely I could do the same with the buttons I'm trying to create, but if I do I don't know that I'm not going to run into the same problem with whatever bounds the buttons, so I feel like I need to understand what I'm missing. Why would a rotated object be clipped as if it wasn't rotated?
Set the LayoutTransform property, instead of RenderTransform:
<Border Height="100" Width="50" BorderThickness="1" BorderBrush="Black">
<TextBlock Text="This is a test">
<TextBlock.LayoutTransform>
<RotateTransform Angle="90"/>
</TextBlock.LayoutTransform>
</TextBlock>
</Border>
If desired, also set HorizontalAlignment="Center" and VerticalAlignment="Center" on the TextBlock.
I tried to add the wrapped the <Image with <border
I added
<Border BorderThickness="1">
And
</Border>
Then tried to wrapped the <Image like this :
<Border BorderThickness="1">
<Image x:Name="Img" HorizontalAlignment="Left" Height="233" Margin="467,54,0,0" VerticalAlignment="Top" Width="272" RenderTransformOrigin="0.5,0.5">
<Image.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform AngleY="0.704"/>
<RotateTransform/>
<TranslateTransform Y="0.614"/>
</TransformGroup>
</Image.RenderTransform>
</Image>
</Border>
But it does nothing when running the application.
In the designer on the main window I have a StackPanel and then on it the other controls also Image control.
I want to show the user that there is a Image control like pictureBox the problem is when running the program and the Image is still empty there is nothing that indicate that there is a Image control. That's why I want to draw a rectangle on the Image borders.
You need to pick a brush for your Border.
<Border BorderThickness="1" BorderBrush="Black">
<Image x:Name="Img" HorizontalAlignment="Left" Height="233" Margin="467,54,0,0" VerticalAlignment="Top" Width="272" RenderTransformOrigin="0.5,0.5">
<Image.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform AngleY="0.704"/>
<RotateTransform/>
<TranslateTransform Y="0.614"/>
</TransformGroup>
</Image.RenderTransform>
</Image>
</Border>
Actually, the method you applied is very close, since the picture will be in a border, it would be more logical to resize the border instead of resizing the picture. If you make an application like below, it will work for you.
<Border BorderThickness="2"
BorderBrush="Black"
VerticalAlignment="Center"
HorizontalAlignment="Center"
Height="128"
Width="128">
<Image HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Stretch="Fill"
Source="/Images/antenna.png"/>
</Border>
It will be enough to have something like this in your application.
<Border BorderThickness="3" BorderBrush="Red" Height="233" Width="272">
<Image x:Name="Img" HorizontalAlignment="Left" Margin="467,54,0,0" VerticalAlignment="Top" RenderTransformOrigin="0.5,0.5">
<Image.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform AngleY="0.704"/>
<RotateTransform/>
<TranslateTransform Y="0.614"/>
</TransformGroup>
</Image.RenderTransform>
</Image>
</Border>
This question already has answers here:
WPF Clipping Problem
(2 answers)
Closed 5 years ago.
I try to rotate an image in a ScrollViewer (WPF), but the entire image needs to remain visible. The corners of the image are cut off, if rotation angle is for example 45. I tried setting the Width and Height of the image by calculation the surrounding rectangle of the rotated image. It works, but not if the rotation angle is over 45.
<Grid>
<ScrollViewer ScrollViewer.HorizontalScrollBarVisibility="Visible" Margin="0,0,0,0">
<Image x:Name="image" RenderTransformOrigin="0.5,0.5" Margin="0,0,0,0" MouseDown="image_MouseDown" MouseRightButtonDown="image_MouseRightButtonDown" MouseLeftButtonDown="image_MouseLeftButtonDown">
<Image.RenderTransform>
<TransformGroup>
<ScaleTransform x:Name="scal"/>
<SkewTransform/>
<RotateTransform Angle="90" x:Name="rot"/>
<TranslateTransform/>
</TransformGroup>
</Image.RenderTransform>
</Image>
</ScrollViewer>
</Grid>
Use a ViewBox in the following structure:
<ScrollViewer Width="100" Height="100" Background="Black" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
<Viewbox Width="100" Height="100">
<Border Width="100" Height="100" Background="Red" >
<Border.LayoutTransform>
<RotateTransform Angle="30" />
</Border.LayoutTransform>
</Border>
</Viewbox>
</ScrollViewer>
Note that you should set the size of the ViewBox and the inner Control (in your case the Image) equal to the size of the ScrollViewer. The ViewBox will adjust the size of the inner Control, in such a way that the ScrollBars are never Visible.
Note that I used a red Border, you can add the image.
Edit
Just checked it. You do not need to set the Widths, but just the size of inner Control. In other words, this works too:
<ScrollViewer Background="Black" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
<Viewbox>
<Border Width="1" Height="1" Background="Red" >
<Border.LayoutTransform>
<RotateTransform Angle="30" />
</Border.LayoutTransform>
</Border>
</Viewbox>
</ScrollViewer>
I want to create a control with customized content.
The text inside should be rotated in the opposite direction to always be displayed vertically. To do this I have to bind rotation angle of text to rotation angle of text ancestor. How to do it? Sorry for my English.
Something like this should work. The important thing is to invert the rotation direction by two mirror transforms, before and after the child element rotation.
<Grid Background="AliceBlue" Width="200" Height="200"
RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<RotateTransform Angle="45"/>
</Grid.RenderTransform>
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center"
Text="Hello" RenderTransformOrigin="0.5,0.5">
<TextBlock.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleX="-1"/>
<RotateTransform Angle="{Binding RenderTransform.Angle,
RelativeSource={RelativeSource AncestorType=Panel}}"/>
<ScaleTransform ScaleX="-1"/>
</TransformGroup>
</TextBlock.RenderTransform>
</TextBlock>
</Grid>
I'm relatively new to some of Xaml features..
I'm trying to implement this progressbar with an arrow on top that shows the progress indicator in addition to the filled bar. I used polygon to display the arrow and just need to translate it in X direction to display it on top of the progrssBar. However, the binding applied below .
Binding PlaybackProgressTip
which is a double is causing the code to crash. Can someone please tell me how to bind the TranslateTransform.X to the double value or I need to do something else?
<Grid x:Name="grid" VerticalAlignment="Top" Margin="0,34,0,0" Grid.Row="1" Height="18" d:LayoutOverrides="VerticalAlignment, Width, VerticalMargin">
<ProgressBar x:Name="Progress" Maximum="1" Value="{Binding PlaybackProgress}" VerticalAlignment="Center" Background="LightGray" Height="6" Visibility="Collapsed" IsIndeterminate="False" Foreground="DarkBlue"/>
<Image x:Name="ProgressComplete" Source="/Images/checkbox.png" Height="18" VerticalAlignment="Center" HorizontalAlignment="Center" Visibility="Collapsed" Stretch="Uniform"/>
<Polygon Points="0,0 8,0, 4,5" Stroke="Black" Fill="Black" Margin="0,-2,0,0">
<Polygon.RenderTransform>
<TransformGroup>
<TranslateTransform x:Name="ProgressPositionTranslate" X="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=PlaybackProgressTip}" />
</TransformGroup>
</Polygon.RenderTransform>
</Polygon>
</Grid>