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Qwt User's Guide 6.0.1
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A state machine for rectangle selections. More...
#include <qwt_picker_machine.h>

Public Types | |
| enum | Command { Begin, Append, Move, Remove, End } |
| enum | SelectionType { NoSelection = -1, PointSelection, RectSelection, PolygonSelection } |
Public Member Functions | |
| QwtPickerDragRectMachine () | |
| void | reset () |
| SelectionType | selectionType () const |
| void | setState (int) |
| int | state () const |
| virtual QList< Command > | transition (const QwtEventPattern &, const QEvent *) |
A state machine for rectangle selections.
Pressing QwtEventPattern::MouseSelect1 selects the first point, releasing it the second point. Pressing QwtEventPattern::KeySelect1 also selects the first point, a second press selects the second point and terminates the selection.
enum QwtPickerMachine::Command [inherited] |
Commands - the output of a state machine.
enum QwtPickerMachine::SelectionType [inherited] |
Type of a selection.
| QwtPickerDragRectMachine::QwtPickerDragRectMachine | ( | ) |
Constructor.
| void QwtPickerMachine::reset | ( | ) | [inherited] |
Set the current state to 0.
| QwtPickerMachine::SelectionType QwtPickerMachine::selectionType | ( | ) | const [inherited] |
Return the selection type.
| void QwtPickerMachine::setState | ( | int | state | ) | [inherited] |
Change the current state.
| int QwtPickerMachine::state | ( | ) | const [inherited] |
Return the current state.
| QList< QwtPickerMachine::Command > QwtPickerDragRectMachine::transition | ( | const QwtEventPattern & | eventPattern, |
| const QEvent * | e | ||
| ) | [virtual] |
Transition.
Implements QwtPickerMachine.
1.7.3