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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.
Parameters
- state
-
a state of the model to be displayed
Attributes
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.
Parameters
- state
-
a state of the model (possibly a done state)
Attributes
- Definition Classes
Indicates whether the view is paused. By default, always returns false.
Indicates whether the view is paused. By default, always returns false.
Attributes
- 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.
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
Attributes
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.
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
Attributes
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.
Parameters
- key
-
the key that was pressed down
- state
-
the state of the model at the time of the keyboard event
Attributes
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.
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
Attributes
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.
Parameters
- key
-
the key that was released
- state
-
the state of the model at the time of the keyboard event
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
Attributes
- 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.
Parameters
- previousState
-
the state of the model before the clock tick
Attributes
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.
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.)
Attributes
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.
Parameters
- character
-
the key that was typed
- state
-
the state of the model at the time of the keyboard event
Attributes
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.
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
Attributes
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.
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
Attributes
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.
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
Attributes
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.
Attributes
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.
Attributes
Inherited methods
Attributes
- Inherited from:
- Controls (hidden)
Attributes
- Inherited from:
- Controls (hidden)