"Fossies" - the Fresh Open Source Software archive 
Member "ivtools-1.2/src/man/man3/StretchTool.3" of archive ivtools-1.2.11.tgz:
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StretchTool - tool for rotating components
#include <Unidraw/Tools/stretch.h>
StretchTool lets the user rotate components by direct manipulation.
- StretchTool(ControlInfo* = nil)
- Create a new StretchTool.
- virtual Manipulator* CreateManipulator(
-
- Viewer*, Event&, Transformer*
-
- )
-
- virtual void InterpretManipulator(Manipulator*)
- CreateManipulator detects
whether the user clicked on a component. If not, it clears the editor’s
selection and returns a nil manipulator. If a component was hit, and if
the component was not previously selected, then CreateManipulator clears
the editor’s selection, selects the component the user hit, and delegates
manipulator creation and interpretation to it. If the component was the
only selected component, it again delegates manipulator creation and interpretation
to the component, but the selection is unaltered. If the user clicks on
one of many selected components, then CreateManipulator will delegate manipulator
creation and interpretation to the hit component without altering the selection.
Tool(3U)
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