Controls
Value members
Abstract methods
Returns a Pic that graphically represents the given state of the view’s model. This method is automatically invoked by the view after GUI events and clock ticks. Left abstract by this class so any concrete view needs to add a custom implementation.
Returns a Pic that graphically represents the given state of the view’s model. This method is automatically invoked by the view after GUI events and clock ticks. Left abstract by this class so any concrete view needs to add a custom implementation.
For best results, all invocations of this method on a single view object should return
Pics of equal dimensions.
- Value parameters:
- state
a state of the model to be displayed
Concrete methods
Determines if the given state is a “done state” for the view. By default, this is never the case, but that behavior can be overridden.
Determines if the given state is a “done state” for the view. By default, this is never the case, but that behavior can be overridden.
Once done, the view stops reacting to events and updating its graphics and may close its GUi window, depending on the constructor parameters of the view.
- Value parameters:
- state
a state of the model (possibly a done state)
- Definition Classes
Indicates whether the view is paused. By default, always returns false.
Indicates whether the view is paused. By default, always returns false.
- See also:
- Definition Classes
Determines what state should follow the given one when a mouse button is clicked (pressed+relesed, possibly multiple times in sequence) above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a mouse button is clicked (pressed+relesed, possibly multiple times in sequence) above the view. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- position
the position of the mouse cursor relative to the view’s top left-hand corner
- state
the state of the model at the time of the click event
Determines what state should follow the given one when a mouse button is clicked (pressed+relesed, possibly multiple times in sequence) above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a mouse button is clicked (pressed+relesed, possibly multiple times in sequence) above the view. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the click event
Determines what state should follow the given one when a key on the keyboard is pressed down while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a key on the keyboard is pressed down while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- key
the key that was pressed down
- state
the state of the model at the time of the keyboard event
Determines what state should follow the given one when a key on the keyboard is pressed down while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a key on the keyboard is pressed down while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the keyboard event
Determines what state should follow the given one when a key on the keyboard is released while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a key on the keyboard is released while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- key
the key that was released
- state
the state of the model at the time of the keyboard event
Determines what state should follow the given one when a key on the keyboard is released while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a key on the keyboard is released while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the keyboard event
Determines what state should follow the given one when a mouse button is pressed down above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a mouse button is pressed down above the view. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- position
the position of the mouse cursor relative to the view’s top left-hand corner
- state
the state of the model at the time of the mouse event
Determines what state should follow the given one when a mouse button is pressed down above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a mouse button is pressed down above the view. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the mouse event
Determines what state should follow the given one when the mouse cursor is dragged above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse cursor is dragged above the view. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- position
the position of the mouse cursor relative to the view’s top left-hand corner
- state
the state of the model at the time of the drag event
Determines what state should follow the given one when the mouse cursor is dragged above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse cursor is dragged above the view. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the drag event
Determines what state should follow the given one when the mouse cursor enters the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse cursor enters the view. By default, just returns the unchanged state, but this can be overridden.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the mouse event
Determines what state should follow the given one when the mouse cursor exits the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse cursor exits the view. By default, just returns the unchanged state, but this can be overridden.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the mouse event
Determines what state should follow the given one when the mouse cursor moves above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse cursor moves above the view. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- position
the position of the mouse cursor relative to the view’s top left-hand corner
- state
the state of the model at the time of the move event
Determines what state should follow the given one when the mouse cursor moves above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse cursor moves above the view. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the move event
Determines what state should follow the given one when a mouse button is released above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a mouse button is released above the view. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- position
the position of the mouse cursor relative to the view’s top left-hand corner
- state
the state of the model at the time of the mouse event
Determines what state should follow the given one when a mouse button is released above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a mouse button is released above the view. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the mouse event
Causes an additional effect when the view is stopped (with stop()).
By default, this method does nothing.
Causes an additional effect when the view is stopped (with stop()).
By default, this method does nothing.
- Definition Classes
Determines what state should follow the given one on a tick of the view’s internal clock. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one on a tick of the view’s internal clock. By default, just returns the unchanged state, but this can be overridden.
- Value parameters:
- previousState
the state of the model before the clock tick
Determines what state should follow the given one on a tick of the view’s internal clock. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one on a tick of the view’s internal clock. By default, just returns the unchanged state, but this can be overridden.
If you don’t need the number of the clock tick, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- previousState
the state of the model before the clock tick
- time
the running number of the clock tick (the first tick being number 1, the second 2, etc.)
Determines what state should follow the given one when a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- character
the key that was typed
- state
the state of the model at the time of the keyboard event
Determines what state should follow the given one when a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the keyboard event
Determines what state should follow the given one when the mouse wheel is rotated above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse wheel is rotated above the view. By default, just returns the unchanged state, but this can be overridden.
If the desired behavior depends on detailed information about the GUI event, you may want to implement the other method of the same name instead of this one.
- Value parameters:
- rotation
the number of steps the wheel rotated (negative means up, positive down)
- state
the state of the model at the time of the wheel event
Determines what state should follow the given one when the mouse wheel is rotated above the view. By default, just returns the unchanged state, but this can be overridden.
Determines what state should follow the given one when the mouse wheel is rotated above the view. By default, just returns the unchanged state, but this can be overridden.
If you don’t need much information about the GUI event, you may find it simpler to implement the other method of the same name instead of this one.
- Value parameters:
- event
the GUI event that caused this handler to be called
- state
the state of the model at the time of the wheel event
Determines whether the view should play a sound, given a state of its model. By default, no sounds are played.
Returns a View that stores a trace of the ticks and GUI events that its event handlers
process. This parameterless method stores, at each event, the (immutable) state of the
View’s model. This is equivalent to calling tracedWith and passing in identity.
Returns a View that stores a trace of the ticks and GUI events that its event handlers
process. This parameterless method stores, at each event, the (immutable) state of the
View’s model. This is equivalent to calling tracedWith and passing in identity.
Returns a View that stores a pictorial trace of the ticks and GUI events that
the View’s event handlers process. This is equivalent to calling tracedWith
and passing in the View’s makePic method.
Returns a View that stores a pictorial trace of the ticks and GUI events that
the View’s event handlers process. This is equivalent to calling tracedWith
and passing in the View’s makePic method.