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java.lang.Object | +--gishur.gui2.DrawAtom | +--gishur.gui2.DrawObject | +--gishur.gui2.InputHandler | +--gishur.gui2.handler.ZoomHandler
An InputHandler
to make screen zooms for zoom-operations.
Fields inherited from class gishur.gui2.DrawAtom |
BLOCK_REPAINT, MARK_RECALC, MARK_REPAINT, MARK_SIZE, REPAINT, UNBLOCK_REPAINT, USER_STATES_FIRST, USER_STATES_MASK |
Constructor Summary | |
ZoomHandler()
Default constructor. |
Method Summary | |
void |
add(Layer layer)
Adds a Layer to the list of zoomed Layers . |
Stack |
history()
Returns the zoom history of this ZoomHandler .
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protected void |
onConsumedEvent(java.awt.event.InputEvent e)
Processes consumed InputEvents . |
protected void |
processMouseEvent(java.awt.event.MouseEvent e)
Processes mouse events. |
protected void |
processMouseMotionEvent(java.awt.event.MouseEvent e)
Processes mouse motion events. |
protected void |
recalculate(RenderContext context,
PropertyStatusReader properties)
Forces the DrawObject to recalculate its representation.
|
void |
refresh()
Refreshes the transformation list. |
void |
remove(Layer layer)
Removes a Layer from the list of zoomed Layers . |
void |
setHistory(Stack history)
Sets the zoom history. |
void |
setLayers(List layers)
Sets the list of Layers to the given list.
|
void |
setMaintainAspectRatio(boolean aspect)
Sets the maintenance of the aspect ration of the screen (default: true ). |
void |
setZoomInMouseButton(int button)
Sets the button to drag the zoom-in area with (default: MouseEvent.BUTTON1_MASK ). |
void |
setZoomOutMouseButton(int button)
Sets the button to zoom back (default: MouseEvent.BUTTON3_MASK ). |
Methods inherited from class gishur.gui2.DrawObject |
addDrawDependency, addPainter, blockRepaint, checkState, checkStateCleared, child, clear, clearCache, clearState, dependency, dirty, disableEvents, draw, draw, enableEvents, ensureRecalculate, findPainter, firstPainter, fullscreen, hide, hide, insert, levelMask, levelUsed, locate, makeDirty, makeDirty, next, next, nextPainter, parent, prepeareRenderContext, prev, prev, processDrawEvent, propertyReader, recalculate, remove, removeDrawDependency, repaint, screenTransformation, setFullscreen, setPaintBeforeMembers, setScreenTransformation, setState, show, show, state, state, unblockRepaint, unblockRepaint, visible |
Methods inherited from class gishur.gui2.DrawAtom |
addProperties, collectHits, dispatchEvent, displayManager, drawComponent, getBounds, getLocalProperty, getProperty, getProperty, getRequiredProperty, processMessage, properties, removeProperty, sendEvent, sendMessage, setBounds, setPropertiesTo, setProperty, setProperty, setProperty, setProperty, toString, toString, toStringDetail, toTreeString |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public ZoomHandler()
Method Detail |
public void setZoomInMouseButton(int button)
MouseEvent.BUTTON1_MASK
).button
- the button to drag the zoom-in area with.public void setZoomOutMouseButton(int button)
MouseEvent.BUTTON3_MASK
).button
- the button to zoom back.public void setMaintainAspectRatio(boolean aspect)
true
).aspect
- if true
, maintain aspect ratio.public void setLayers(List layers)
Layers
to the given list.
The list must contain ListItems
, that can
store a key and a value, as keys there must be the Layers
.
All ListItems
, that contain no Layer
as key will be removed.public void add(Layer layer)
Layer
to the list of zoomed Layers
.layer
- new Layer
public void remove(Layer layer)
Layer
from the list of zoomed Layers
.layer
- the Layer
to removepublic void refresh()
public void setHistory(Stack history)
Stack
,
storing Hashtables
with ScreenTransformations
as keys and their status-objects (see ScreenTransformation.saveStatus()
)
as values.history
- the zoom history to use.history()
public Stack history()
this
ZoomHandler
.
The zoom history is a Stack
, storing Hashtables
with ScreenTransformations
as keys and their
status-objects (see ScreenTransformation.saveStatus()
) as values.
On zooming in, an entry will be added to the history; on zooming out,
an entry will be removed.setHistory(gishur.core.Stack)
protected void processMouseEvent(java.awt.event.MouseEvent e)
processMouseEvent
in class InputHandler
e
- the event.protected void processMouseMotionEvent(java.awt.event.MouseEvent e)
processMouseMotionEvent
in class InputHandler
e
- the event.protected void onConsumedEvent(java.awt.event.InputEvent e)
InputEvents
. In order to process the events
further, call InputHandler.sendEvent(java.awt.AWTEvent)
.onConsumedEvent
in class InputHandler
e
- consumed InputEvent
.protected void recalculate(RenderContext context, PropertyStatusReader properties)
DrawObject
to recalculate its representation.
This method will only be called, if it became dirty via a call
to the DrawObject.makeDirty(boolean)
method or something has happened, that
causes all DrawAtoms
to recalculate their
representation.
This method should only be called by the render system.recalculate
in class InputHandler
context
- the RenderContext
to useproperties
- the PropertyStatusReader
to use for
reading properties
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