// Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights

// reserved. Use of this source code is governed by a BSD-style license that

// can be found in the LICENSE file.

package org.cef.handler;

import org.cef.browser.CefBrowser;

import org.cef.callback.CefNativeAdapter;

import org.cef.callback.CefPrintDialogCallback;

import org.cef.callback.CefPrintJobCallback;

import org.cef.misc.CefPrintSettings;

import java.awt.Dimension;

/**

* An abstract adapter class for receiving print events on Linux.

* The methods in this class are empty.

* This class exists as convenience for creating handler objects.

*/

public abstract class CefPrintHandlerAdapter extends CefNativeAdapter implements CefPrintHandler {

@Override

public void onPrintStart(CefBrowser browser) {

// The default implementation does nothing

}

@Override

public void onPrintSettings(

CefBrowser browser, CefPrintSettings settings, boolean getDefaults) {

// The default implementation does nothing

}

@Override

public boolean onPrintDialog(

CefBrowser browser, boolean hasSelection, CefPrintDialogCallback callback) {

// The default implementation does nothing

return false;

}

@Override

public boolean onPrintJob(CefBrowser browser, String documentName, String pdfFilePath,

CefPrintJobCallback callback) {

// The default implementation does nothing

return false;

}

@Override

public void onPrintReset(CefBrowser browser) {

// The default implementation does nothing

}

@Override

public Dimension getPdfPaperSize(CefBrowser browser, int deviceUnitsPerInch) {

// default implementation is A4 letter size

// @ 300 DPI, A4 is 2480 x 3508

// @ 150 DPI, A4 is 1240 x 1754

int adjustedWidth = (int) (((double) deviceUnitsPerInch / 300d) * 2480d);

int adjustedHeight = (int) (((double) deviceUnitsPerInch / 300d) * 3508d);

return new Dimension(adjustedWidth, adjustedHeight);

}

}