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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal.gwt.client.ui.layout;
import com.vaadin.terminal.gwt.client.ApplicationConnection;
import com.vaadin.terminal.gwt.client.ComponentState;
import com.vaadin.terminal.gwt.client.UIDL;
import com.vaadin.terminal.gwt.client.ui.VAbstractPaintableWidgetContainer;
import com.vaadin.terminal.gwt.client.ui.VMarginInfo;
public abstract class CellBasedLayoutPaintable extends
VAbstractPaintableWidgetContainer {
@Override
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
getWidgetForPaintable().client = client;
if (isRealUpdate(uidl)) {
/**
* Margin and spacing detection depends on classNames and must be
* set before setting size. Here just update the details from UIDL
* and from overridden setStyleName run actual margin detections.
*/
updateMarginAndSpacingInfo(uidl);
}
/*
* This call should be made first. Ensure correct implementation, handle
* size etc.
*/
super.updateFromUIDL(uidl, client);
if (isRealUpdate(uidl)) {
handleDynamicDimensions();
}
}
private void handleDynamicDimensions() {
String w = "";
String h = "";
if (null != getState()) {
if (getState().getState().containsKey(ComponentState.STATE_WIDTH)) {
w = String.valueOf(getState().getState().get(
ComponentState.STATE_WIDTH));
}
if (getState().getState().containsKey(ComponentState.STATE_HEIGHT)) {
h = String.valueOf(getState().getState().get(
ComponentState.STATE_HEIGHT));
}
}
if (w.equals("")) {
getWidgetForPaintable().dynamicWidth = true;
} else {
getWidgetForPaintable().dynamicWidth = false;
}
if (h.equals("")) {
getWidgetForPaintable().dynamicHeight = true;
} else {
getWidgetForPaintable().dynamicHeight = false;
}
}
void updateMarginAndSpacingInfo(UIDL uidl) {
int bitMask = uidl.getIntAttribute("margins");
if (getWidgetForPaintable().activeMarginsInfo.getBitMask() != bitMask) {
getWidgetForPaintable().activeMarginsInfo = new VMarginInfo(bitMask);
getWidgetForPaintable().marginsNeedsRecalculation = true;
}
boolean spacing = uidl.getBooleanAttribute("spacing");
if (spacing != getWidgetForPaintable().spacingEnabled) {
getWidgetForPaintable().marginsNeedsRecalculation = true;
getWidgetForPaintable().spacingEnabled = spacing;
}
}
@Override
protected abstract CellBasedLayout createWidget();
@Override
public CellBasedLayout getWidgetForPaintable() {
return (CellBasedLayout) super.getWidgetForPaintable();
}
}
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