Controls
Attributes
- Graph
-
- Supertypes
- Known subtypes
Members list
Value members
Abstract methods
Returns a Pic that graphically represents the current state of the view’s model
object. 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 current state of the view’s model
object. 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 Pic
s of equal dimensions.
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.
Attributes
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
Causes an effect whenever a mouse button is clicked (pressed+released, possibly multiple times in sequence) above the view. Does nothing by default but can be overridden.
Causes an effect whenever a mouse button is clicked (pressed+released, possibly multiple times in sequence) above the view. Does nothing by default but 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
Attributes
Causes an effect whenever a mouse button is clicked (pressed+released, possibly multiple times in sequence) above the view. Does nothing by default but can be overridden.
Causes an effect whenever a mouse button is clicked (pressed+released, possibly multiple times in sequence) above the view. Does nothing by default but 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
Attributes
Causes an effect whenever a key on the keyboard is pressed down while the view has the keyboard focus. Does nothing by default but can be overridden.
Causes an effect whenever a key on the keyboard is pressed down while the view has the keyboard focus. Does nothing by default but 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
Attributes
Causes an effect whenever a key on the keyboard is pressed down while the view has the keyboard focus. Does nothing by default but can be overridden.
Causes an effect whenever a key on the keyboard is pressed down while the view has the keyboard focus. Does nothing by default but 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
Attributes
Causes an effect whenever a key on the keyboard is released while the view has the keyboard focus. Does nothing by default but can be overridden.
Causes an effect whenever a key on the keyboard is released while the view has the keyboard focus. Does nothing by default but 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
Attributes
Causes an effect whenever a key on the keyboard is released while the view has the keyboard focus. Does nothing by default but can be overridden.
Causes an effect whenever a key on the keyboard is released while the view has the keyboard focus. Does nothing by default but 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
Attributes
Causes an effect whenever a mouse button is pressed down above the view. Does nothing by default but can be overridden.
Causes an effect whenever a mouse button is pressed down above the view. Does nothing by default but 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
Attributes
Causes an effect whenever a mouse button is pressed down above the view. Does nothing by default but can be overridden.
Causes an effect whenever a mouse button is pressed down above the view. Does nothing by default but 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
Attributes
Causes an effect whenever the mouse cursor is dragged above the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse cursor is dragged above the view. Does nothing by default but 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
Attributes
Causes an effect whenever the mouse cursor is dragged above the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse cursor is dragged above the view. Does nothing by default but 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
Attributes
Causes an effect whenever the mouse cursor enters the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse cursor enters the view. Does nothing by default but can be overridden.
Parameters
- event
-
the GUI event that caused this handler to be called
Attributes
Causes an effect whenever the mouse cursor exits the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse cursor exits the view. Does nothing by default but can be overridden.
Parameters
- event
-
the GUI event that caused this handler to be called
Attributes
Causes an effect whenever the mouse cursor moves above the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse cursor moves above the view. Does nothing by default but 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
Attributes
Causes an effect whenever the mouse cursor moves above the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse cursor moves above the view. Does nothing by default but 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
Attributes
Causes an effect whenever a mouse button is released above the view. Does nothing by default but can be overridden.
Causes an effect whenever a mouse button is released above the view. Does nothing by default but 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
Attributes
Causes an effect whenever a mouse button is released above the view. Does nothing by default but can be overridden.
Causes an effect whenever a mouse button is released above the view. Does nothing by default but 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
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
Causes an effect whenever the view’s internal clock ticks. Does nothing by default but can be overridden.
Causes an effect whenever the view’s internal clock ticks. Does nothing by default but can be overridden.
Attributes
Causes an effect whenever the view’s internal clock ticks. Does nothing by default but can be overridden.
Causes an effect whenever the view’s internal clock ticks. Does nothing by default but 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
- time
-
the running number of the clock tick (the first tick being number 1, the second 2, etc.)
Attributes
Causes an effect whenever a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. Does nothing by default but can be overridden.
Causes an effect whenever a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. Does nothing by default but 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
Attributes
Causes an effect whenever a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. Does nothing by default but can be overridden.
Causes an effect whenever a key on the keyboard is typed (pressed+released) while the view has the keyboard focus. Does nothing by default but 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
Attributes
Causes an effect whenever the mouse wheel is rotated above the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse wheel is rotated above the view. Does nothing by default but 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)
Attributes
Causes an effect whenever the mouse wheel is rotated above the view. Does nothing by default but can be overridden.
Causes an effect whenever the mouse wheel is rotated above the view. Does nothing by default but 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
Attributes
Determines whether the view should play a sound, given the current state of its model. By default, no sounds are played.
Determines whether the view should play a sound, given the current state of its model. By default, no sounds are played.
Attributes
- Returns
-
a Sound that the view should play;
None
if no sound is appropriate for the current state
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 toString
description of the View
’s (mutable) model. This is equivalent to calling tracedWith and passing in that toString
method.
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 toString
description of the View
’s (mutable) model. This is equivalent to calling tracedWith and passing in that toString
method.
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
the model object represented in the view.
Attributes
- Inherited from:
- Controls (hidden)
Attributes
- Inherited from:
- Controls (hidden)