javax.swing.plaf.basic.BasicListUI — clojure-interop/javax.swing 1.0.5

An extensible implementation of ListUI.

BasicListUI instances cannot be shared between multiple lists.

*create-ui clj

(*create-ui list)

Returns a new instance of BasicListUI. BasicListUI delegates are allocated one per JList.

list - javax.swing.JComponent

returns: A new ListUI implementation for the Windows look and feel. - javax.swing.plaf.ComponentUI

->basic-list-ui clj

(->basic-list-ui)

Constructor.

get-baseline clj

(get-baseline this c width height)

Returns the baseline.

c - JComponent baseline is being requested for - javax.swing.JComponent width - the width to get the baseline for - int height - the height to get the baseline for - int

returns: baseline or a value < 0 indicating there is no reasonable baseline - int

throws: java.lang.NullPointerException - if c is null

get-baseline-resize-behavior clj

(get-baseline-resize-behavior this c)

Returns an enum indicating how the baseline of the component changes as the size changes.

c - JComponent to return baseline resize behavior for - javax.swing.JComponent

returns: an enum indicating how the baseline changes as the component size changes - java.awt.Component$BaselineResizeBehavior

throws: java.lang.NullPointerException - if c is null

get-cell-bounds clj

(get-cell-bounds this list index-1 index-2)

Returns the bounding rectangle, in the given list's coordinate system, for the range of cells specified by the two indices. The indices can be supplied in any order.

If the smaller index is outside the list's range of cells, this method returns null. If the smaller index is valid, but the larger index is outside the list's range, the bounds of just the first index is returned. Otherwise, the bounds of the valid range is returned.

list - the list - javax.swing.JList index-1 - the first index in the range - int index-2 - the second index in the range - int

returns: the bounding rectangle for the range of cells, or null - java.awt.Rectangle

get-preferred-size clj

(get-preferred-size this c)

The preferredSize of the list depends upon the layout orientation.

Layout OrientationPreferred Size

JList.VERTICAL The preferredSize of the list is total height of the rows and the maximum width of the cells. If JList.fixedCellHeight is specified then the total height of the rows is just (cellVerticalMargins fixedCellHeight) * model.getSize() where rowVerticalMargins is the space we allocate for drawing the yellow focus outline. Similarly if fixedCellWidth is specified then we just use that.

JList.VERTICAL_WRAP If the visible row count is greater than zero, the preferredHeight is the maximum cell height * visibleRowCount. If the visible row count is <= 0, the preferred height is either the current height of the list, or the maximum cell height, whichever is bigger. The preferred width is than the maximum cell width * number of columns needed. Where the number of columns needs is list.height / max cell height. Max cell height is either the fixed cell height, or is determined by iterating through all the cells to find the maximum height from the ListCellRenderer.

JList.HORIZONTAL_WRAP If the visible row count is greater than zero, the preferredHeight is the maximum cell height * adjustedRowCount. Where visibleRowCount is used to determine the number of columns. Because this lays out horizontally the number of rows is then determined from the column count. For example, lets say you have a model with 10 items and the visible row count is 8. The number of columns needed to display this is 2, but you no longer need 8 rows to display this, you only need 5, thus the adjustedRowCount is 5. If the visible row count is <= 0, the preferred height is dictated by the number of columns, which will be as many as can fit in the width of the JList (width / max cell width), with at least one column. The preferred height then becomes the model size / number of columns * maximum cell height. Max cell height is either the fixed cell height, or is determined by iterating through all the cells to find the maximum height from the ListCellRenderer.

The above specifies the raw preferred width and height. The resulting preferred width is the above width insets.left insets.right and the resulting preferred height is the above height insets.top insets.bottom. Where the Insets are determined from list.getInsets().

c - The JList component. - javax.swing.JComponent

returns: The total size of the list. - java.awt.Dimension

index-to-location clj

(index-to-location this list index)

Returns the origin in the given JList, of the specified item, in the list's coordinate system. Returns null if the index isn't valid.

list - the list - javax.swing.JList index - the cell index - int

returns: the origin of the cell, or null - java.awt.Point

install-ui clj

(install-ui this c)

Initializes this.list by calling installDefaults(), installListeners(), and installKeyboardActions() in order.

c - the component where this UI delegate is being installed - javax.swing.JComponent

location-to-index clj

(location-to-index this list location)

Returns the cell index in the specified JList closest to the given location in the list's coordinate system. To determine if the cell actually contains the specified location, compare the point against the cell's bounds, as provided by getCellBounds. This method returns -1 if the list's model is empty.

list - the list - javax.swing.JList location - the coordinates of the point - java.awt.Point

returns: the cell index closest to the given location, or -1 - int

throws: java.lang.NullPointerException - if location is null

paint clj

(paint this g c)

Paint the rows that intersect the Graphics objects clipRect. This method calls paintCell as necessary. Subclasses may want to override these methods.

g - the Graphics context in which to paint - java.awt.Graphics c - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components - javax.swing.JComponent

uninstall-ui clj

(uninstall-ui this c)

Uninitializes this.list by calling uninstallListeners(), uninstallKeyboardActions(), and uninstallDefaults() in order. Sets this.list to null.

c - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components - javax.swing.JComponent