com.alee.managers.style.skin.web.WebLabelPainter Maven / Gradle / Ivy
/*
* This file is part of WebLookAndFeel library.
*
* WebLookAndFeel library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* WebLookAndFeel library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WebLookAndFeel library. If not, see extends AbstractPainter implements LabelPainter
{
/**
* Style settings.
*/
protected boolean drawShade = WebLabelStyle.drawShade;
protected Color shadeColor = WebLabelStyle.shadeColor;
protected Float transparency = WebLabelStyle.transparency;
protected Painter backgroundPainter = WebLabelStyle.backgroundPainter;
/**
* Runtime variables.
*/
protected Rectangle paintIconR = new Rectangle ();
protected Rectangle paintTextR = new Rectangle ();
/**
* Constructs new WebLabelPainter with default settings.
*/
public WebLabelPainter ()
{
super ();
}
/**
* Constructs new WebLabelPainter with the specified background painter.
*
* @param backgroundPainter background painter
*/
public WebLabelPainter ( final Painter backgroundPainter )
{
super ();
setBackgroundPainter ( backgroundPainter );
}
/**
* Returns whether text shade is displayed or not.
*
* @return true if text shade is displayed, false otherwise
*/
public boolean isDrawShade ()
{
return drawShade;
}
/**
* {@inheritDoc}
*/
@Override
public void setDrawShade ( final boolean drawShade )
{
this.drawShade = drawShade;
}
/**
* Returns text shade color.
*
* @return text shade color
*/
public Color getShadeColor ()
{
return shadeColor;
}
/**
* Sets text shade color.
*
* @param shadeColor text shade color
*/
public void setShadeColor ( final Color shadeColor )
{
this.shadeColor = shadeColor;
}
/**
* Returns label transparency.
*
* @return label transparency
*/
public Float getTransparency ()
{
return transparency;
}
/**
* Sets label transparency.
*
* @param transparency label transparency
*/
public void setTransparency ( final Float transparency )
{
this.transparency = transparency;
}
/**
* Returns label background painter.
*
* @return label background painter
*/
public Painter getBackgroundPainter ()
{
return backgroundPainter;
}
/**
* Sets label background painter.
*
* @param painter label background painter
*/
public void setBackgroundPainter ( final Painter painter )
{
this.backgroundPainter = painter;
updateAll ();
}
/**
* {@inheritDoc}
*/
@Override
public Boolean isOpaque ( final E c )
{
return null;
}
/**
* {@inheritDoc}
*/
@Override
public Insets getMargin ( final E label )
{
return backgroundPainter != null ? backgroundPainter.getMargin ( label ) : super.getMargin ( label );
}
/**
* {@inheritDoc}
*/
@Override
public void paint ( final Graphics2D g2d, final Rectangle bounds, final E label )
{
// Applying graphics settings
final Composite oc = GraphicsUtils.setupAlphaComposite ( g2d, transparency, transparency != null );
final Map textHints = drawShade ? StyleConstants.defaultTextRenderingHints : StyleConstants.textRenderingHints;
final Font oldFont = GraphicsUtils.setupFont ( g2d, label.getFont () );
final Map oldHints = SwingUtils.setupTextAntialias ( g2d, textHints );
// Retrieving icon & text
final String text = label.getText ();
final Icon icon = ( label.isEnabled () ) ? label.getIcon () : label.getDisabledIcon ();
// Painting background
if ( backgroundPainter != null )
{
backgroundPainter.paint ( g2d, bounds, label );
}
// We don't need to go futher if there is not icon/text
if ( icon == null && text == null )
{
return;
}
final FontMetrics fm = label.getFontMetrics ( label.getFont () );
final String clippedText = layout ( label, fm, label.getWidth (), label.getHeight () );
if ( icon != null )
{
icon.paintIcon ( label, g2d, paintIconR.x, paintIconR.y );
}
if ( text != null )
{
final View v = ( View ) label.getClientProperty ( BasicHTML.propertyKey );
if ( v != null )
{
// Painting HTML label view
v.paint ( g2d, paintTextR );
}
else
{
// Painting plain label view
final int textX = paintTextR.x;
final int textY = paintTextR.y + fm.getAscent ();
if ( label.isEnabled () )
{
paintEnabledText ( label, g2d, clippedText, textX, textY );
}
else
{
paintDisabledText ( label, g2d, clippedText, textX, textY );
}
}
}
SwingUtils.restoreTextAntialias ( g2d, oldHints );
GraphicsUtils.restoreFont ( g2d, oldFont );
GraphicsUtils.restoreComposite ( g2d, oc, transparency != null );
}
/**
* Updates painted label layout and returns clipped or full label text.
*
* @param label label to process
* @param fm label font metrics
* @param width label width
* @param height label height
* @return clipped or full label text
*/
protected String layout ( final E label, final FontMetrics fm, final int width, final int height )
{
final Insets insets = label.getInsets ( null );
final String text = label.getText ();
final Icon icon = ( label.isEnabled () ) ? label.getIcon () : label.getDisabledIcon ();
final Rectangle paintViewR = new Rectangle ();
paintViewR.x = insets.left;
paintViewR.y = insets.top;
paintViewR.width = width - ( insets.left + insets.right );
paintViewR.height = height - ( insets.top + insets.bottom );
paintIconR.x = paintIconR.y = paintIconR.width = paintIconR.height = 0;
paintTextR.x = paintTextR.y = paintTextR.width = paintTextR.height = 0;
return layoutCL ( label, fm, text, icon, paintViewR, paintIconR, paintTextR );
}
/**
* Performs label layout and returns clipped or full label text.
*
* @param label label to process
* @param fm label font metrics
* @param text label text
* @param icon label icon
* @param viewR rectangle limited by label insets
* @param iconR icon rectangle dummy
* @param textR text rectangle dummy
* @return clipped or full label text
*/
protected String layoutCL ( final E label, final FontMetrics fm, final String text, final Icon icon, final Rectangle viewR,
final Rectangle iconR, final Rectangle textR )
{
return SwingUtilities.layoutCompoundLabel ( label, fm, text, icon, label.getVerticalAlignment (), label.getHorizontalAlignment (),
label.getVerticalTextPosition (), label.getHorizontalTextPosition (), viewR, iconR, textR, label.getIconTextGap () );
}
/**
* Performs enabled text painting.
*
* @param label label to process
* @param g2d graphics context
* @param text label text
* @param textX text X coordinate
* @param textY text Y coordinate
*/
protected void paintEnabledText ( final E label, final Graphics2D g2d, final String text, final int textX, final int textY )
{
if ( drawShade )
{
g2d.setColor ( label.getForeground () );
paintShadowText ( g2d, text, textX, textY );
}
else
{
final int mnemIndex = label.getDisplayedMnemonicIndex ();
g2d.setColor ( label.getForeground () );
SwingUtils.drawStringUnderlineCharAt ( g2d, text, mnemIndex, textX, textY );
}
}
/**
* Performs disabled text painting.
*
* @param label label to process
* @param g2d graphics context
* @param text label text
* @param textX text X coordinate
* @param textY text Y coordinate
*/
protected void paintDisabledText ( final E label, final Graphics2D g2d, final String text, final int textX, final int textY )
{
if ( label.isEnabled () && drawShade )
{
g2d.setColor ( label.getBackground ().darker () );
paintShadowText ( g2d, text, textX, textY );
}
else
{
final int accChar = label.getDisplayedMnemonicIndex ();
final Color background = label.getBackground ();
g2d.setColor ( background.brighter () );
SwingUtils.drawStringUnderlineCharAt ( g2d, text, accChar, textX + 1, textY + 1 );
g2d.setColor ( background.darker () );
SwingUtils.drawStringUnderlineCharAt ( g2d, text, accChar, textX, textY );
}
}
/**
* Paints custom text shade.
*
* @param g2d graphics context
* @param text text
* @param textX text X coordinate
* @param textY text Y coordinate
*/
protected void paintShadowText ( final Graphics2D g2d, final String text, final int textX, final int textY )
{
g2d.translate ( textX, textY );
LafUtils.paintTextShadow ( g2d, text, shadeColor );
g2d.translate ( -textX, -textY );
}
/**
* {@inheritDoc}
*/
@Override
public Dimension getPreferredSize ( final E label )
{
final String text = label.getText ();
final Icon icon = ( label.isEnabled () ) ? label.getIcon () : label.getDisabledIcon ();
final Insets insets = label.getInsets ( null );
final Font font = label.getFont ();
final int dx = insets.left + insets.right;
final int dy = insets.top + insets.bottom;
if ( ( icon == null ) && ( ( text == null ) || ( ( text != null ) && ( font == null ) ) ) )
{
return new Dimension ( dx, dy );
}
else if ( ( text == null ) || ( ( icon != null ) && ( font == null ) ) )
{
return new Dimension ( icon.getIconWidth () + dx, icon.getIconHeight () + dy );
}
else
{
final FontMetrics fm = label.getFontMetrics ( font );
final Rectangle iconR = new Rectangle ();
final Rectangle textR = new Rectangle ();
final Rectangle viewR = new Rectangle ();
iconR.x = iconR.y = iconR.width = iconR.height = 0;
textR.x = textR.y = textR.width = textR.height = 0;
viewR.x = dx;
viewR.y = dy;
viewR.width = viewR.height = Short.MAX_VALUE;
layoutCL ( label, fm, text, icon, viewR, iconR, textR );
final int x1 = Math.min ( iconR.x, textR.x );
final int x2 = Math.max ( iconR.x + iconR.width, textR.x + textR.width );
final int y1 = Math.min ( iconR.y, textR.y );
final int y2 = Math.max ( iconR.y + iconR.height, textR.y + textR.height );
final Dimension rv = new Dimension ( x2 - x1, y2 - y1 );
rv.width += dx;
rv.height += dy;
return rv;
}
}
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