net.miginfocom.swt
Class SwtComponentWrapper

java.lang.Object
  net.miginfocom.swt.SwtComponentWrapper

All Implemented Interfaces:

ComponentWrapper

Direct Known Subclasses:

SwtContainerWrapper

public class SwtComponentWrapper
extends java.lang.Object
implements ComponentWrapper

Field Summary

Fields inherited from interface net.miginfocom.layout.ComponentWrapper

TYPE_BUTTON, TYPE_CHECK_BOX, TYPE_COMBO_BOX, TYPE_CONTAINER, TYPE_IMAGE, TYPE_LABEL, TYPE_LIST, TYPE_PANEL, TYPE_PROGRESS_BAR, TYPE_SCROLL_BAR, TYPE_SCROLL_PANE, TYPE_SEPARATOR, TYPE_SLIDER, TYPE_SPINNER, TYPE_TABLE, TYPE_TEXT_AREA, TYPE_TEXT_FIELD, TYPE_TREE, TYPE_UNKNOWN, TYPE_UNSET

Constructor Summary

SwtComponentWrapper(org.eclipse.swt.widgets.Control c)

Method Summary

boolean	equals(java.lang.Object o)
int	getBaseline(int width, int height) Returns the baseline for the component given the suggested height.
java.lang.Object	getComponent() Returns the actual object that this wrapper is aggregating.
int	getComponetType(boolean disregardScrollPane) Returns the type of component that this wrapper is wrapping.
int	getHeight() Returns the current height for this component.
int	getHorizontalScreenDPI() Returns the DPI (Dots Per Inch) of the screen the component is currently in or for the default screen if the component is not visible.
int	getLayoutHashCode() Returns a hash code that should be reasonably different for anything that might change the layout.
java.lang.String	getLinkId() Returns a String id that can be used to reference the component in link constraints.
int	getMaximumHeight(int sz) Returns the maximum height of the component.
int	getMaximumWidth(int sz) Returns the maximum width of the component.
int	getMinimumHeight(int sz) Returns the minimum height of the component.
int	getMinimumWidth(int sz) Returns the minimum width of the component.
ContainerWrapper	getParent() Returns the container for this component.
float	getPixelUnitFactor(boolean isHor) Returns the pixel unit factor for the horizontal or vertical dimension.
int	getPreferredHeight(int sz) Returns the preferred height of the component.
int	getPreferredWidth(int sz) Returns the preferred width of the component.
int	getScreenHeight() Returns the pixel size of the screen that the component is currently in or for the default screen if the component is not visible or null.
int	getScreenLocationX() Returns the screen x-coordinate for the upper left coordinate of the component layout-able bounds.
int	getScreenLocationY() Returns the screen y-coordinate for the upper left coordinate of the component layout-able bounds.
int	getScreenWidth() Returns the pixel size of the screen that the component is currently in or for the default screen if the component is not visible or null.
int	getVerticalScreenDPI() Returns the DPI (Dots Per Inch) of the screen the component is currently in or for the default screen if the component is not visible.
int[]	getVisualPadding() Returns the padding on a component by component basis.
int	getWidth() Returns the current width for this component.
int	getX() Returns the current x coordinate for this component.
int	getY() Returns the current y coordinate for this component.
boolean	hasBaseline() Returns if the component has a baseline and if it can be retrieved.
int	hashCode()
static boolean	isMinimumSizeZero() Sets if minimum size for SWT components should be preferred size (default, false) or 0.
static boolean	isUseVisualPadding()
boolean	isVisible() Returns if the component's visibility is set to true.
void	paintDebugOutline() Paints component outline to indicate where it is.
void	setBounds(int x, int y, int width, int height) Sets the component's bounds.
static void	setMinimumSizeZero(boolean b) Sets if minimum size for SWT components should be preferred size (default, false) or 0.
static void	setUseVisualPadding(boolean b)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SwtComponentWrapper

public SwtComponentWrapper(org.eclipse.swt.widgets.Control c)

Method Detail

getBaseline

public final int getBaseline(int width,
                             int height)

Description copied from interface: ComponentWrapper

Returns the baseline for the component given the suggested height.

Specified by:

getBaseline in interface ComponentWrapper

Parameters:

width - The width to calculate for if other than the current. If -1 the current size should be used.

height - The height to calculate for if other than the current. If -1 the current size should be used.

Returns:

The baseline from the top or -1 if not applicable.

getComponent

public final java.lang.Object getComponent()

Description copied from interface: ComponentWrapper

Returns the actual object that this wrapper is aggregating. This might be needed for getting information about the object that the wrapper interface does not provide.

If this is a container the container should be returned instead.

Specified by:

getComponent in interface ComponentWrapper

Returns:

The actual object that this wrapper is aggregating. Not null.

getPixelUnitFactor

public final float getPixelUnitFactor(boolean isHor)

Description copied from interface: ComponentWrapper

Returns the pixel unit factor for the horizontal or vertical dimension.

The factor is 1 for both dimensions on the normal font in a JPanel on Windows. The factor should increase with a bigger "X".

This is the Swing version:

 Rectangle2D r = fm.getStringBounds("X", parent.getGraphics());
 wFactor = r.getWidth() / 6;
 hFactor = r.getHeight() / 13.27734375f;
 

Specified by:

getPixelUnitFactor in interface ComponentWrapper

Parameters:

isHor - If it is the horizontal factor that should be returned.

Returns:

The factor.

getX

public final int getX()

Description copied from interface: ComponentWrapper

Returns the current x coordinate for this component.

Specified by:

getX in interface ComponentWrapper

Returns:

The current x coordinate for this component.

getY

public final int getY()

Description copied from interface: ComponentWrapper

Returns the current y coordinate for this component.

Specified by:

getY in interface ComponentWrapper

Returns:

The current y coordinate for this component.

getWidth

public final int getWidth()

Description copied from interface: ComponentWrapper

Returns the current width for this component.

Specified by:

getWidth in interface ComponentWrapper

Returns:

The current width for this component.

getHeight

public final int getHeight()

Description copied from interface: ComponentWrapper

Returns the current height for this component.

Specified by:

getHeight in interface ComponentWrapper

Returns:

The current height for this component.

getScreenLocationX

public final int getScreenLocationX()

Description copied from interface: ComponentWrapper

Returns the screen x-coordinate for the upper left coordinate of the component layout-able bounds.

Specified by:

getScreenLocationX in interface ComponentWrapper

Returns:

The screen x-coordinate for the upper left coordinate of the component layout-able bounds.

getScreenLocationY

public final int getScreenLocationY()

Description copied from interface: ComponentWrapper

Returns the screen y-coordinate for the upper left coordinate of the component layout-able bounds.

Specified by:

getScreenLocationY in interface ComponentWrapper

Returns:

The screen y-coordinate for the upper left coordinate of the component layout-able bounds.

getMinimumHeight

public final int getMinimumHeight(int sz)

Description copied from interface: ComponentWrapper

Returns the minimum height of the component.

Specified by:

getMinimumHeight in interface ComponentWrapper

Parameters:

sz - The Size hint for the other dimension. An implementation can use this value or the current size for the widget in this dimension, or a combination of both, to calculate the correct size.
Use -1 to denote that there is no hint. This corresponds with SWT.DEFAULT.

Returns:

The minimum height of the component.

getMinimumWidth

public final int getMinimumWidth(int sz)

Description copied from interface: ComponentWrapper

Returns the minimum width of the component.

Specified by:

getMinimumWidth in interface ComponentWrapper

Parameters:

sz - The Size hint for the other dimension. An implementation can use this value or the current size for the widget in this dimension, or a combination of both, to calculate the correct size.
Use -1 to denote that there is no hint. This corresponds with SWT.DEFAULT.

Returns:

The minimum width of the component.

getPreferredHeight

public final int getPreferredHeight(int sz)

Description copied from interface: ComponentWrapper

Returns the preferred height of the component.

Specified by:

getPreferredHeight in interface ComponentWrapper

Parameters:

sz - The Size hint for the other dimension. An implementation can use this value or the current size for the widget in this dimension, or a combination of both, to calculate the correct size.
Use -1 to denote that there is no hint. This corresponds with SWT.DEFAULT.

Returns:

The preferred height of the component.

getPreferredWidth

public final int getPreferredWidth(int sz)

Description copied from interface: ComponentWrapper

Returns the preferred width of the component.

Specified by:

getPreferredWidth in interface ComponentWrapper

Parameters:

sz - The Size hint for the other dimension. An implementation can use this value or the current size for the widget in this dimension, or a combination of both, to calculate the correct size.
Use -1 to denote that there is no hint. This corresponds with SWT.DEFAULT.

Returns:

The preferred width of the component.

getMaximumHeight

public final int getMaximumHeight(int sz)

Description copied from interface: ComponentWrapper

Returns the maximum height of the component.

Specified by:

getMaximumHeight in interface ComponentWrapper

Parameters:

sz - The Size hint for the other dimension. An implementation can use this value or the current size for the widget in this dimension, or a combination of both, to calculate the correct size.
Use -1 to denote that there is no hint. This corresponds with SWT.DEFAULT.

Returns:

The maximum height of the component.

getMaximumWidth

public final int getMaximumWidth(int sz)

Description copied from interface: ComponentWrapper

Returns the maximum width of the component.

Specified by:

getMaximumWidth in interface ComponentWrapper

Parameters:

sz - The Size hint for the other dimension. An implementation can use this value or the current size for the widget in this dimension, or a combination of both, to calculate the correct size.
Use -1 to denote that there is no hint. This corresponds with SWT.DEFAULT.

Returns:

The maximum width of the component.

getParent

public final ContainerWrapper getParent()

Description copied from interface: ComponentWrapper

Returns the container for this component.

Specified by:

getParent in interface ComponentWrapper

Returns:

The container for this component. Will return null if the component has no parent.

getHorizontalScreenDPI

public int getHorizontalScreenDPI()

Description copied from interface: ComponentWrapper

Returns the DPI (Dots Per Inch) of the screen the component is currently in or for the default screen if the component is not visible.

If headless mode PlatformDefaults.getDefaultDPI() will be returned.

Specified by:

getHorizontalScreenDPI in interface ComponentWrapper

Returns:

The DPI.

getVerticalScreenDPI

public int getVerticalScreenDPI()

Description copied from interface: ComponentWrapper

Returns the DPI (Dots Per Inch) of the screen the component is currently in or for the default screen if the component is not visible.

If headless mode PlatformDefaults.getDefaultDPI() will be returned.

Specified by:

getVerticalScreenDPI in interface ComponentWrapper

Returns:

The DPI.

getScreenWidth

public final int getScreenWidth()

Description copied from interface: ComponentWrapper

Returns the pixel size of the screen that the component is currently in or for the default screen if the component is not visible or null.

If in headless mode 1024 is returned.

Specified by:

getScreenWidth in interface ComponentWrapper

Returns:

The screen size. E.g. 1280.

getScreenHeight

public final int getScreenHeight()

Description copied from interface: ComponentWrapper

Returns the pixel size of the screen that the component is currently in or for the default screen if the component is not visible or null.

If in headless mode 768 is returned.

Specified by:

getScreenHeight in interface ComponentWrapper

Returns:

The screen size. E.g. 1024.

hasBaseline

public final boolean hasBaseline()

Description copied from interface: ComponentWrapper

Returns if the component has a baseline and if it can be retrieved. Should for instance return false for Swing before mustang.

Specified by:

hasBaseline in interface ComponentWrapper

Returns:

If the component has a baseline and if it can be retrieved.

getLinkId

public final java.lang.String getLinkId()

Description copied from interface: ComponentWrapper

Returns a String id that can be used to reference the component in link constraints. This value should return the default id for the component. The id can be set for a component in the constraints and if so the value returned by this method will never be used. If there are no sensible id for the component null should be returned.

For instance the Swing implementation returns the string returned from Component.getName().

Specified by:

getLinkId in interface ComponentWrapper

Returns:

The string link id or null.

setBounds

public final void setBounds(int x,
                            int y,
                            int width,
                            int height)

Description copied from interface: ComponentWrapper

Sets the component's bounds.

Specified by:

setBounds in interface ComponentWrapper

Parameters:

x - The x coordinate.

y - The y coordinate.

width - The width.

height - The height.

isVisible

public boolean isVisible()

Description copied from interface: ComponentWrapper

Returns if the component's visibility is set to true. This should not return if the component is actually visible, but if the visibility is set to true or not.

Specified by:

isVisible in interface ComponentWrapper

Returns:

true means visible.

getVisualPadding

public final int[] getVisualPadding()

Description copied from interface: ComponentWrapper

Returns the padding on a component by component basis. This method can be overridden to return padding to compensate for example for borders that have shadows or where the outer most pixel is not the visual "edge" to align to.

Default implementation returns null for all components except for Windows XP's JTabbedPane which will return new Insets(0, 0, 2, 2).

NOTE! To reduce generated garbage the returned padding should never be changed so that the same insets can be returned many times.

Specified by:

getVisualPadding in interface ComponentWrapper

Returns:

null if no padding. NOTE! To reduce generated garbage the returned padding should never be changed so that the same insets can be returned many times. [top, left, bottom, right]

isUseVisualPadding

public static boolean isUseVisualPadding()

setUseVisualPadding

public static void setUseVisualPadding(boolean b)

isMinimumSizeZero

public static boolean isMinimumSizeZero()

Sets if minimum size for SWT components should be preferred size (default, false) or 0.

Returns:

true means minimum size is 0.

setMinimumSizeZero

public static void setMinimumSizeZero(boolean b)

Sets if minimum size for SWT components should be preferred size (default, false) or 0.

Parameters:

b - true means minimum size is 0.

getLayoutHashCode

public int getLayoutHashCode()

Description copied from interface: ComponentWrapper

Returns a hash code that should be reasonably different for anything that might change the layout. This value is used to know if the component layout needs to clear any caches.

Specified by:

getLayoutHashCode in interface ComponentWrapper

Returns:

A hash code that should be reasonably different for anything that might change the layout. Returns -1 if the widget is disposed.

paintDebugOutline

public final void paintDebugOutline()

Description copied from interface: ComponentWrapper

Paints component outline to indicate where it is.

Specified by:

paintDebugOutline in interface ComponentWrapper

getComponetType

public int getComponetType(boolean disregardScrollPane)

Description copied from interface: ComponentWrapper

Returns the type of component that this wrapper is wrapping.

This method can be invoked often so the result should be cached.

NOTE! This is misspelled. Keeping it that way though since this is only used by developers who port MigLayout.

Specified by:

getComponetType in interface ComponentWrapper

Parameters:

disregardScrollPane - Is true any wrapping scroll pane should be disregarded and the type of the scrolled component should be returned.

Returns:

The type of component that this wrapper is wrapping. E.g. ComponentWrapper.TYPE_LABEL.

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public final boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object