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/*******************************************************************************
* Copyright (c) 2012, 2020 EclipseSource and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.nebula.widgets.grid;
import static org.eclipse.swt.internal.widgets.MarkupUtil.checkMarkupPrecondition;
import static org.eclipse.swt.internal.widgets.MarkupUtil.isToolTipMarkupEnabledFor;
import static org.eclipse.swt.internal.widgets.MarkupUtil.MarkupTarget.TOOLTIP;
import static org.eclipse.swt.internal.widgets.MarkupValidator.isValidationDisabledFor;
import org.eclipse.nebula.widgets.grid.internal.gridcolumnkit.GridColumnLCA;
import org.eclipse.rap.rwt.RWT;
import org.eclipse.rap.rwt.internal.lifecycle.WidgetLCA;
import org.eclipse.rap.rwt.internal.textsize.TextSizeUtil;
import org.eclipse.rap.rwt.theme.BoxDimensions;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlListener;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.internal.widgets.MarkupValidator;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.TypedListener;
/**
* Instances of this class represent a column in a grid widget.
*
*
* - Styles:
* - SWT.LEFT, SWT.RIGHT, SWT.CENTER
* - Events:
* - Move, Resize, Selection, Show, Hide
*
*/
@SuppressWarnings( "restriction" )
public class GridColumn extends Item {
static final String FOOTER_SPAN = "footerSpan";
private static final int SORT_INDICATOR_WIDTH = 10;
private static final int MARGIN_IMAGE = 3;
private static final int DEFAULT_WIDTH = 10;
private int width = DEFAULT_WIDTH;
private int minimumWidth;
private Grid parent;
private GridColumnGroup group;
private int sortStyle = SWT.NONE;
private boolean check;
private boolean tableCheck;
private boolean moveable;
private boolean resizeable = true;
private boolean checkable = true;
private boolean detail = true;
private boolean summary = true;
private boolean visible = true;
private int alignment = SWT.LEFT;
private Font headerFont;
private String headerTooltip;
private String footerText = "";
private Image footerImage;
private Font footerFont;
private int footerSpan = 1;
private boolean packed;
private boolean wordWrap;
private boolean headerWordWrap;
int imageCount;
int textCount;
/**
* Constructs a new instance of this class given its parent (which must be a
* Grid) and a style value describing its behavior and
* appearance. The item is added to the end of the items maintained by its
* parent.
*
* @param parent
* an Grid control which will be the parent of the new instance
* (cannot be null)
* @param style
* the style of control to construct
* @throws IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the parent is null
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the parent
* -
* ERROR_INVALID_SUBCLASS - if this class is not an allowed
* subclass
*
*/
public GridColumn( Grid parent, int style ) {
this( parent, style, -1 );
}
/**
* Constructs a new instance of this class given its parent (which must be a
* Grid), a style value describing its behavior and appearance,
* and the index at which to place it in the items maintained by its parent.
*
* @param parent
* an Grid control which will be the parent of the new instance
* (cannot be null)
* @param style
* the style of control to construct
* @param index
* the index to store the receiver in its parent
* @throws IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the parent is null
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the parent
* -
* ERROR_INVALID_SUBCLASS - if this class is not an allowed
* subclass
*
*/
public GridColumn( Grid parent, int style, int index ) {
super( parent, style, index );
init( parent, style, index );
}
/**
* Constructs a new instance of this class given its parent column group
* (which must be a GridColumnGroup), a style value describing
* its behavior and appearance, and the index at which to place it in the
* items maintained by its parent.
*
* @param parent
* an Grid control which will be the parent of the new instance
* (cannot be null)
* @param style
* the style of control to construct
* @throws IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the parent is null
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the parent
* -
* ERROR_INVALID_SUBCLASS - if this class is not an allowed
* subclass
*
*/
public GridColumn( GridColumnGroup parent, int style ) {
super( parent.getParent(), style, parent.getNewColumnIndex() );
init( parent.getParent(), style, parent.getNewColumnIndex() );
group = parent;
group.newColumn( this );
}
/**
* {@inheritDoc}
*/
@Override
public void dispose() {
if( !parent.isDisposing() && !isDisposed() ) {
parent.removeColumn( this );
if( group != null ) {
group.removeColumn( this );
}
}
super.dispose();
}
/**
* Returns the parent grid.
*
* @return the parent grid.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public Grid getParent() {
checkWidget();
return parent;
}
/**
* Returns the column group if this column was created inside a group, or
* {@code null} otherwise.
*
* @return the column group.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public GridColumnGroup getColumnGroup() {
checkWidget();
return group;
}
/**
* Adds the listener to the collection of listeners who will be notified
* when the receiver's is pushed, by sending it one of the messages defined
* in the SelectionListener interface.
*
* @param listener
* the listener which should be notified
* @throws IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the listener is null
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void addSelectionListener( SelectionListener listener ) {
checkWidget();
if( listener == null ) {
SWT.error( SWT.ERROR_NULL_ARGUMENT );
}
TypedListener typedListener = new TypedListener( listener );
addListener( SWT.Selection, typedListener );
addListener( SWT.DefaultSelection, typedListener );
}
/**
* Removes the listener from the collection of listeners who will be
* notified when the receiver's selection changes.
*
* @param listener
* the listener which should no longer be notified
* @see SelectionListener
* @see #addSelectionListener(SelectionListener)
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void removeSelectionListener( SelectionListener listener ) {
checkWidget();
if( listener == null ) {
SWT.error( SWT.ERROR_NULL_ARGUMENT );
}
removeListener( SWT.Selection, listener );
removeListener( SWT.DefaultSelection, listener );
}
/**
* Adds a listener to the list of listeners notified when the column is
* moved or resized.
*
* @param listener
* listener
* @throws IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the listener is null
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void addControlListener( ControlListener listener ) {
checkWidget();
if( listener == null ) {
SWT.error( SWT.ERROR_NULL_ARGUMENT );
}
TypedListener typedListener = new TypedListener( listener );
addListener( SWT.Move, typedListener );
addListener( SWT.Resize, typedListener );
}
/**
* Removes the given control listener.
*
* @param listener
* listener.
* @throws IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the listener is null
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void removeControlListener( ControlListener listener ) {
checkWidget();
if( listener == null ) {
SWT.error( SWT.ERROR_NULL_ARGUMENT );
}
removeListener( SWT.Move, listener );
removeListener( SWT.Resize, listener );
}
/**
* Sets the width of the column.
*
* @param width
* new width
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setWidth( int width ) {
checkWidget();
internalSetWidth( width );
}
/**
* Returns the width of the column.
*
* @return width of column
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public int getWidth() {
checkWidget();
return width;
}
/**
* Set the minimum width of the column
*
* @param minimumWidth
* the minimum width
*/
public void setMinimumWidth( int minimumWidth ) {
checkWidget();
this.minimumWidth = Math.max( 0, minimumWidth );
if( minimumWidth > width ) {
internalSetWidth( minimumWidth );
}
}
/**
* @return the minimum width
*/
public int getMinimumWidth() {
checkWidget();
return minimumWidth;
}
@Override
public void setText( String text ) {
super.setText( text );
parent.layoutCache.invalidateHeaderHeight();
parent.scheduleRedraw();
}
@Override
public void setImage( Image image ) {
super.setImage( image );
parent.layoutCache.invalidateHeaderHeight();
parent.scheduleRedraw();
}
/**
* Sets the sort indicator style for the column. This method does not actual
* sort the data in the table. Valid values include: SWT.UP, SWT.DOWN,
* SWT.NONE.
*
* @param style
* SWT.UP, SWT.DOWN, SWT.NONE
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setSort( int style ) {
checkWidget();
if( style == SWT.UP || style == SWT.DOWN || style == SWT.NONE ) {
// TODO: [if] Currently, client implementation supports only one sort column
if( style != SWT.NONE ) {
for( int i = 0; i < parent.getColumnCount(); i++ ) {
GridColumn column = parent.getColumn( i );
if( column != this ) {
column.setSort( SWT.NONE );
}
}
}
sortStyle = style;
parent.redraw();
}
}
/**
* Returns the sort indicator value.
*
* @return SWT.UP, SWT.DOWN, SWT.NONE
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public int getSort() {
checkWidget();
return sortStyle;
}
/**
* Sets the column moveable or fixed.
*
* @param moveable
* true to enable column moving
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setMoveable( boolean moveable ) {
checkWidget();
this.moveable = moveable;
parent.redraw();
}
/**
* Returns true if this column is moveable.
*
* @return true if moveable.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean getMoveable() {
checkWidget();
return moveable;
}
/**
* Sets the column resizeable.
*
* @param resizeable
* true to make the column resizeable
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setResizeable( boolean resizeable ) {
checkWidget();
this.resizeable = resizeable;
}
/**
* Returns true if the column is resizeable.
*
* @return true if the column is resizeable.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean getResizeable() {
checkWidget();
return resizeable;
}
/**
* Sets the checkable state. If false the checkboxes in the column cannot be
* checked.
*
* @param checkable
* the new checkable state.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setCheckable(boolean checkable) {
checkWidget();
this.checkable = checkable;
}
/**
* Returns the checkable state. If false the checkboxes in the column cannot
* be checked.
*
* @return true if the column is checkable (only applicable when style is
* SWT.CHECK).
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean getCheckable() {
checkWidget();
return checkable;
}
/**
* Sets the column as a detail column in a column group. Detail columns are
* shown when a column group is expanded. If this column was not created in
* a column group, this method has no effect.
*
* @param detail
* true to show this column when the group is expanded.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setDetail( boolean detail ) {
checkWidget();
this.detail = detail;
}
/**
* Returns true if this column is set as a detail column in a column group.
* Detail columns are shown when the group is expanded.
*
* @return true if the column is a detail column.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean isDetail() {
checkWidget();
return detail;
}
/**
* Sets the column as a summary column in a column group. Summary columns
* are shown when a column group is collapsed. If this column was not
* created in a column group, this method has no effect.
*
* @param summary
* true to show this column when the group is collapsed.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setSummary( boolean summary ) {
checkWidget();
this.summary = summary;
}
/**
* Returns true if this column is set as a summary column in a column group.
* Summary columns are shown when the group is collapsed.
*
* @return true if the column is a summary column.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean isSummary() {
checkWidget();
return summary;
}
/**
* Sets the column's visibility.
*
* @param visible
* the visible to set
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setVisible( boolean visible ) {
checkWidget();
boolean before = isVisible();
this.visible = visible;
if( isVisible() != before ) {
if( visible ) {
notifyListeners( SWT.Show, new Event() );
} else {
notifyListeners( SWT.Hide, new Event() );
}
GridColumn[] orderedColumns = parent.getColumnsInOrder();
boolean fire = false;
for( int i = 0; i < orderedColumns.length; i++ ) {
GridColumn column = orderedColumns[ i ];
if( column == this ) {
fire = true;
} else if( fire && column.isVisible() ) {
column.fireMoved();
}
}
parent.redraw();
}
}
/**
* Returns the visibility state as set with {@code setVisible}.
*
* @return the visible
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean getVisible() {
checkWidget();
return visible;
}
/**
* Returns true if the column is visible, false otherwise. If the column is
* in a group and the group is not expanded and this is a detail column,
* returns false (and vice versa).
*
* @return true if visible, false otherwise
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean isVisible() {
checkWidget();
boolean result = visible;
if( group != null && !group.isDisposed() ) {
if( ( group.getExpanded() && !isDetail() ) || ( !group.getExpanded() && !isSummary() ) ) {
result = false;
}
}
return result;
}
/**
* Returns true if the column includes a check box.
*
* @return true if the column includes a check box.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean isCheck() {
checkWidget();
return check || tableCheck;
}
/**
* Makes this column the one with tree toggle.
*
* @param tree
* true to add toggle.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*
* @since 3.13
*/
public void setTree( boolean tree ) {
checkWidget();
if( tree ) {
parent.setTreeColumn( this );
} else if( isTree() ) {
parent.setTreeColumn( null );
}
parent.redraw();
}
/**
* Returns true if this column includes a tree toggle.
*
* @return true if the column includes the tree toggle.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean isTree() {
checkWidget();
return parent.isTreeColumn( parent.indexOf( this ) );
}
/**
* Sets the column alignment.
*
* @param alignment
* SWT.LEFT, SWT.RIGHT, SWT.CENTER
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setAlignment( int alignment ) {
checkWidget();
if( alignment == SWT.LEFT || alignment == SWT.CENTER || alignment == SWT.RIGHT ) {
this.alignment = alignment;
}
}
/**
* Returns the column alignment.
*
* @return SWT.LEFT, SWT.RIGHT, SWT.CENTER
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public int getAlignment() {
checkWidget();
return alignment;
}
/**
* Returns the true if the cells in receiver wrap their text.
*
* @return true if the cells wrap their text.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public boolean getWordWrap() {
checkWidget();
return wordWrap;
}
/**
* If the argument is true, wraps the text in the receiver's cells. This
* feature will not cause the row height to expand to accommodate the
* wrapped text. Please use Grid#setItemHeight to change the
* height of each row.
*
* @param wordWrap
* true to make cells wrap their text.
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setWordWrap( boolean wordWrap ) {
checkWidget();
if( this.wordWrap != wordWrap ) {
this.wordWrap = wordWrap;
parent.scheduleRedraw();
}
}
/**
* Sets the Font to be used when displaying the Header text.
*
* @param font
* the new header font (or null)
* @throws IllegalArgumentException
*
* - ERROR_INVALID_ARGUMENT - if the argument has been
* disposed
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setHeaderFont( Font font ) {
checkWidget();
if( font != null && font.isDisposed() ) {
SWT.error( SWT.ERROR_INVALID_ARGUMENT );
}
headerFont = font;
parent.layoutCache.invalidateHeaderHeight();
parent.scheduleRedraw();
}
/**
* Returns the font that the receiver will use to paint textual information
* for the header.
*
* @return the receiver's font
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public Font getHeaderFont() {
checkWidget();
return headerFont == null ? parent.getFont() : headerFont;
}
/**
* Sets the tooltip text of the column header.
*
* @param toolTipText the tooltip text
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setHeaderTooltip( String toolTipText ) {
checkWidget();
if( toolTipText != null
&& isToolTipMarkupEnabledFor( this )
&& !isValidationDisabledFor( this ) )
{
MarkupValidator.getInstance().validate( toolTipText );
}
headerTooltip = toolTipText;
}
/**
* Returns the tooltip of the column header.
*
* @return the tooltip text (or null)
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public String getHeaderTooltip() {
checkWidget();
return headerTooltip;
}
/**
* Sets whether or not text is word-wrapped in the header for this column.
* If Grid.setAutoHeight(true) is set, the row height is adjusted to
* accommodate word-wrapped text.
*
* @param wordWrap
* Set to true to wrap the text, false otherwise
* @see #getHeaderWordWrap()
*/
public void setHeaderWordWrap( boolean wordWrap ) {
checkWidget();
if( headerWordWrap != wordWrap ) {
headerWordWrap = wordWrap;
parent.layoutCache.invalidateHeaderHeight();
parent.layoutCache.invalidateFooterHeight();
parent.scheduleRedraw();
}
}
/**
* Returns whether or not text is word-wrapped in the header for this
* column.
*
* @return true if the header wraps its text.
* @see GridColumn#setHeaderWordWrap(boolean)
*/
public boolean getHeaderWordWrap() {
checkWidget();
return headerWordWrap;
}
/**
* Sets the receiver's footer text.
*
* @param text
* the new text
*
* @exception IllegalArgumentException
*
* - ERROR_NULL_ARGUMENT - if the text is null
*
* @exception org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been
* disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setFooterText( String text ) {
checkWidget();
if( text == null ) {
SWT.error( SWT.ERROR_NULL_ARGUMENT );
}
footerText = text;
parent.layoutCache.invalidateFooterHeight();
}
/**
* Returns the receiver's footer text, which will be an empty string if it
* has never been set.
*
* @return the receiver's text
*
* @exception org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been
* disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public String getFooterText() {
checkWidget();
return footerText;
}
/**
* Sets the receiver's footer image to the argument, which may be null
* indicating that no image should be displayed.
*
* @param image
* the image to display on the receiver (may be null)
*
* @exception IllegalArgumentException
*
* - ERROR_INVALID_ARGUMENT - if the image has been
* disposed
*
* @exception org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been
* disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setFooterImage( Image image ) {
checkWidget();
if( image != null && image.isDisposed() ) {
SWT.error( SWT.ERROR_INVALID_ARGUMENT );
}
footerImage = image;
parent.layoutCache.invalidateFooterHeight();
}
/**
* Returns the receiver's footer image if it has one, or null if it does
* not.
*
* @return the receiver's image
*
* @exception org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been
* disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public Image getFooterImage() {
checkWidget();
return footerImage;
}
/**
* Sets the Font to be used when displaying the Footer text.
*
* @param font
* the new footer font (or null)
* @throws IllegalArgumentException
*
* - ERROR_INVALID_ARGUMENT - if the argument has been
* disposed
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void setFooterFont( Font font ) {
checkWidget();
if( font != null && font.isDisposed() ) {
SWT.error( SWT.ERROR_INVALID_ARGUMENT );
}
footerFont = font;
parent.layoutCache.invalidateFooterHeight();
parent.scheduleRedraw();
}
/**
* Returns the font that the receiver will use to paint textual information
* for the footer.
*
* @return the receiver's font
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public Font getFooterFont() {
checkWidget();
return footerFont == null ? parent.getFont() : footerFont;
}
/**
* Causes the receiver to be resized to its preferred size.
*
* @throws org.eclipse.swt.SWTException
*
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
*
* - ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the receiver
*
*/
public void pack() {
checkWidget();
int newWidth = Math.max( getPreferredWidth(), parent.getMaxContentWidth( this ) );
setWidth( newWidth );
packed = true;
parent.redraw();
}
@Override
public void setData( String key, Object value ) {
handleFooterSpan( key, value );
if( !RWT.TOOLTIP_MARKUP_ENABLED.equals( key ) || !isToolTipMarkupEnabledFor( this ) ) {
checkMarkupPrecondition( key, TOOLTIP, () -> headerTooltip == null );
super.setData( key, value );
}
}
@Override
@SuppressWarnings( "unchecked" )
public T getAdapter( Class adapter ) {
if( adapter == WidgetLCA.class ) {
return ( T )GridColumnLCA.INSTANCE;
}
return super.getAdapter( adapter );
}
private void handleFooterSpan( String key, Object value ) {
if( FOOTER_SPAN.equals( key ) ) {
if( !( value instanceof Integer ) || ( ( Integer )value ).intValue() < 1 ) {
SWT.error( SWT.ERROR_INVALID_ARGUMENT );
}
footerSpan = ( ( Integer )value ).intValue();
if( getHeaderWordWrap() ) {
parent.layoutCache.invalidateFooterHeight();
parent.scheduleRedraw();
}
}
}
void repack() {
if( packed ) {
pack();
}
}
int getLeft() {
GridColumn rowHeaders = parent.getRowHeadersColumn();
int result = rowHeaders == null || rowHeaders == this ? 0 : rowHeaders.getWidth();
if( rowHeaders != this ) {
boolean found = false;
int[] columnOrder = parent.getColumnOrder();
for( int i = 0; i < columnOrder.length && !found; i++ ) {
GridColumn currentColumn = parent.getColumn( columnOrder[ i ] );
if( currentColumn == this ) {
found = true;
} else if( currentColumn.isVisible() ) {
result += currentColumn.getWidth();
}
}
}
return result;
}
int getHeaderWrapWidth() {
BoxDimensions headerPadding = parent.getHeaderPadding();
int result = width - headerPadding.left - headerPadding.right;
Image headerImage = getImage();
if( headerImage != null ) {
result -= headerImage.getBounds().width;
result -= MARGIN_IMAGE;
}
if( sortStyle != SWT.NONE ) {
result -= SORT_INDICATOR_WIDTH;
result -= MARGIN_IMAGE;
}
return result;
}
int getFooterWrapWidth() {
BoxDimensions headerPadding = parent.getHeaderPadding();
int result = getFooterWidth() - headerPadding.left - headerPadding.right;
if( footerImage != null ) {
result -= footerImage.getBounds().width;
result -= MARGIN_IMAGE;
}
return result;
}
private int getFooterWidth() {
int result = width;
if( footerSpan != 1 ) {
boolean found = false;
int nextColumns = 0;
int[] columnOrder = parent.getColumnOrder();
for( int i = 0; i < columnOrder.length; i++ ) {
GridColumn currentColumn = parent.getColumn( columnOrder[ i ] );
if( currentColumn == this ) {
found = true;
} else if( found && currentColumn.isVisible() && footerSpan > ++nextColumns ) {
result += currentColumn.getWidth();
}
}
}
return result;
}
private int getPreferredWidth() {
int headerWidth = 0;
String headerText = getText();
Image headerImage = getImage();
headerWidth = getContentWidth( getHeaderFont(), headerText, headerImage );
if( sortStyle != SWT.NONE ) {
headerWidth += SORT_INDICATOR_WIDTH;
if( headerText.length() > 0 || headerImage != null ) {
headerWidth += MARGIN_IMAGE;
}
}
int footerWidth = 0;
if( parent.getFooterVisible() ) {
footerWidth = getContentWidth( getFooterFont(), footerText, footerImage );
}
// Add 1px for the right column border
return Math.max( headerWidth, footerWidth ) + 1;
}
private int getContentWidth( Font font, String text, Image image ) {
int contentWidth = 0;
if( text.length() > 0 ) {
contentWidth += TextSizeUtil.textExtent( font, text, 0 ).x;
}
if( image != null ) {
contentWidth += image.getBounds().width;
if( text.length() > 0 ) {
contentWidth += MARGIN_IMAGE;
}
}
BoxDimensions headerPadding = parent.getHeaderPadding();
contentWidth += headerPadding.left + headerPadding.right;
return contentWidth;
}
private void internalSetWidth( int width ) {
int newWidth = Math.max( minimumWidth, width );
if( this.width != newWidth ) {
this.width = newWidth;
packed = false;
processControlEvents();
if( parent.isAutoHeight() && getHeaderWordWrap() ) {
parent.layoutCache.invalidateHeaderHeight();
parent.layoutCache.invalidateFooterHeight();
}
parent.scheduleRedraw();
}
}
protected boolean isTableCheck() {
return tableCheck;
}
protected void setTableCheck( boolean tableCheck ) {
this.tableCheck = tableCheck;
}
private void init( Grid parent, int style, int index ) {
this.parent = parent;
if( ( style & SWT.RIGHT ) == SWT.RIGHT ) {
alignment = SWT.RIGHT;
}
if( ( style & SWT.CENTER ) == SWT.CENTER ) {
alignment = SWT.CENTER;
}
if( ( style & SWT.CHECK ) == SWT.CHECK ) {
check = true;
}
parent.newColumn( this, index );
}
private void processControlEvents() {
int[] columnOrder = parent.getColumnOrder();
boolean found = false;
for( int i = 0; i < columnOrder.length; i++ ) {
GridColumn currentColumn = parent.getColumn( columnOrder[ i ] );
if( currentColumn == this ) {
found = true;
fireResized();
} else if( found ) {
currentColumn.fireMoved();
}
}
}
void fireResized() {
Event event = new Event();
event.display = getDisplay();
event.item = this;
event.widget = parent;
notifyListeners( SWT.Resize, event );
}
void fireMoved() {
Event event = new Event();
event.display = getDisplay();
event.item = this;
event.widget = parent;
notifyListeners( SWT.Move, event );
}
}
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