Special Constraints for Dimension and Handle
Sometimes, shapes may have to be created with special features such as being scaled with a fixed ratio, having handles moved only on one direction or in a limited length. Pencil supports many constraints for Pencil properties.
Dimension:
<Property name="box" type="Dimension" p:lockRatio="true">36,45</Property>
- p:lockRatio: $box size is scaled with a fixed ratio. So any objects have width & height properties is set <Box>$box</Box> behavior will be scaled with a fixed ratio, too.
- p:lockW : the box width cannot be scaled
- p:lockH : the box height cannot be scaled.
Handle:
<Property name="width" displayName="Width"
type="Handle"
p:lockY="true"
p:minX="10"
p:maxX="$box.w"
p:disabled="true">100,0</Property>
- p:lockY : only move on horizontal direction
- p:lockX : only move on vertical direction
- p:minX, p:maxX : moving on horizontal direction only from mixX to maxX
- p:minY, p:maxY : moving on vertical direction only from mixY to maxY
- p:disabled : disable the handle.