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package com.itmill.toolkit.ui;
import com.itmill.toolkit.terminal.PaintException;
import com.itmill.toolkit.terminal.PaintTarget;
import com.itmill.toolkit.terminal.Sizeable;
import com.itmill.toolkit.terminal.gwt.client.ui.MarginInfo;
/**
* An abstract class that defines default implementation for the {@link Layout}
* interface.
*
* @author IT Mill Ltd.
* @version
* @VERSION@
* @since 5.0
*/
public abstract class AbstractLayout extends AbstractComponentContainer
implements Layout {
protected MarginInfo margins = new MarginInfo(false, false, false, false);
/**
* Height of the layout. Set to -1 for undefined height.
*/
private int height = -1;
/**
* Height unit.
*
* @see com.itmill.toolkit.terminal.Sizeable.UNIT_SYMBOLS;
*/
private int heightUnit = UNITS_PIXELS;
/**
* Width of the layout. Set to -1 for undefined width.
*/
private int width = -1;
/**
* Width unit.
*
* @see com.itmill.toolkit.terminal.Sizeable.UNIT_SYMBOLS;
*/
private int widthUnit = UNITS_PIXELS;
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.ui.AbstractComponent#getTag()
*/
public abstract String getTag();
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.ui.Layout#setMargin(boolean)
*/
public void setMargin(boolean enabled) {
margins.setMargins(enabled);
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.ui.Layout#setMargin(boolean, boolean, boolean,
* boolean)
*/
public void setMargin(boolean topEnabled, boolean rightEnabled,
boolean bottomEnabled, boolean leftEnabled) {
margins
.setMargins(topEnabled, rightEnabled, bottomEnabled,
leftEnabled);
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#getHeight()
*/
public int getHeight() {
return height;
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#getHeightUnits()
*/
public int getHeightUnits() {
return heightUnit;
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#getWidth()
*/
public int getWidth() {
return width;
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#getWidthUnits()
*/
public int getWidthUnits() {
return widthUnit;
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#setHeight(int)
*/
public void setHeight(int height) {
this.height = height;
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#setHeightUnits(int)
*/
public void setHeightUnits(int units) {
heightUnit = units;
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#setSizeFull()
*/
public void setSizeFull() {
height = 100;
width = 100;
heightUnit = UNITS_PERCENTAGE;
widthUnit = UNITS_PERCENTAGE;
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#setSizeUndefined()
*/
public void setSizeUndefined() {
height = -1;
width = -1;
heightUnit = UNITS_PIXELS;
widthUnit = UNITS_PIXELS;
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#setWidth(int)
*/
public void setWidth(int width) {
this.width = width;
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.terminal.Sizeable#setWidthUnits(int)
*/
public void setWidthUnits(int units) {
widthUnit = units;
requestRepaint();
}
/*
* (non-Javadoc)
*
* @see com.itmill.toolkit.ui.AbstractComponent#paintContent(com.itmill.toolkit.terminal.PaintTarget)
*/
public void paintContent(PaintTarget target) throws PaintException {
// Add margin info. Defaults to false.
target.addAttribute("margins", margins.getBitMask());
// Size
if (getHeight() >= 0) {
target.addAttribute("height", "" + getHeight()
+ Sizeable.UNIT_SYMBOLS[getHeightUnits()]);
}
if (getWidth() >= 0) {
target.addAttribute("width", "" + getWidth()
+ Sizeable.UNIT_SYMBOLS[getWidthUnits()]);
}
}
}
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