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java.lang.Objectjava.awt.Component
java.awt.Container
javax.swing.JComponent
com.lightdev.app.shtm.ImagePreview
public class ImagePreview
An ImagePreview
is a component to preview
GIF and JPEG images.
The preview adapts (shrinks) images to its size upon their assignment. When the preview is resized, its image is adapted again.
Alternately, when altering the image width, height and scale properties with respective setters, the image is resized within the preview without the preview itself adapting in size.
Scroll bars are displayed as appropriate.
Nested Class Summary |
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Nested classes/interfaces inherited from class javax.swing.JComponent |
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javax.swing.JComponent.AccessibleJComponent |
Nested classes/interfaces inherited from class java.awt.Container |
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java.awt.Container.AccessibleAWTContainer |
Nested classes/interfaces inherited from class java.awt.Component |
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java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy |
Field Summary |
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Fields inherited from class javax.swing.JComponent |
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accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW |
Fields inherited from class java.awt.Component |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
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ImagePreview()
Construct an ImagePreview without an image
associated. |
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ImagePreview(javax.swing.ImageIcon pic)
Construct an ImagePreview . |
Method Summary | |
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int |
getOriginalHeight()
Get the original height of the image previewed in this component |
int |
getOriginalWidth()
Get the original width of the image previewed in this component |
java.awt.Dimension |
getPreferredScrollableViewportSize()
|
int |
getScale()
Gets the size adjustment necessary for the image to fit into this component and returns the resulting scale percentage. |
int |
getScrollableBlockIncrement(java.awt.Rectangle visibleRect,
int orientation,
int direction)
|
boolean |
getScrollableTracksViewportHeight()
|
boolean |
getScrollableTracksViewportWidth()
|
int |
getScrollableUnitIncrement(java.awt.Rectangle visibleRect,
int orientation,
int direction)
|
void |
paint(java.awt.Graphics g)
Paints this component. |
void |
setImage(javax.swing.ImageIcon pic)
Set the image to be previewed. |
void |
setMaxUnitIncrement(int pixels)
|
void |
setPreviewHeight(int newHeight)
set the preview to a new height maintaining the image proportions |
void |
setPreviewWidth(int newWidth)
set the preview to a new width maintaining the image proportions |
void |
setScale(int newScale)
Adapt the size of the image previewed by this component to a new scale. |
Methods inherited from class javax.swing.JComponent |
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addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI |
Methods inherited from class java.awt.Container |
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add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree |
Methods inherited from class java.awt.Component |
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action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public ImagePreview(javax.swing.ImageIcon pic)
ImagePreview
.
pic
- - the image to be previewedpublic ImagePreview()
ImagePreview
without an image
associated.
Method Detail |
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public int getOriginalWidth()
public int getOriginalHeight()
public void setImage(javax.swing.ImageIcon pic)
public void paint(java.awt.Graphics g)
paint
in class javax.swing.JComponent
g
- - The graphics context to use for painting.public int getScale()
public void setPreviewWidth(int newWidth)
newWidth
- the new width for the image previewpublic void setPreviewHeight(int newHeight)
newHeight
- the new height for the image previewpublic void setScale(int newScale)
newScale
- the new scale the image shall adapt to in sizepublic java.awt.Dimension getPreferredScrollableViewportSize()
getPreferredScrollableViewportSize
in interface javax.swing.Scrollable
public int getScrollableUnitIncrement(java.awt.Rectangle visibleRect, int orientation, int direction)
getScrollableUnitIncrement
in interface javax.swing.Scrollable
public int getScrollableBlockIncrement(java.awt.Rectangle visibleRect, int orientation, int direction)
getScrollableBlockIncrement
in interface javax.swing.Scrollable
public boolean getScrollableTracksViewportWidth()
getScrollableTracksViewportWidth
in interface javax.swing.Scrollable
public boolean getScrollableTracksViewportHeight()
getScrollableTracksViewportHeight
in interface javax.swing.Scrollable
public void setMaxUnitIncrement(int pixels)
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