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/*
* Copyright (C) 2007 Alp Toker <alp@atoker.com>
* Copyright (C) 2007 Apple Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef PrintContext_h
#define PrintContext_h
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace WebCore {
class Element;
class Frame;
class FloatRect;
class FloatSize;
class GraphicsContext;
class IntRect;
class PrintContext {
public:
PrintContext(Frame*);
~PrintContext();
int pageCount() const;
const IntRect& pageRect(int pageNumber) const;
const Vector<IntRect>& pageRects() const { return m_pageRects; }
void computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight);
void computePageRectsWithPageSize(const FloatSize& pageSizeInPixels, bool allowHorizontalMultiPages);
// TODO: eliminate width param
void begin(float width, float height = 0);
// TODO: eliminate width param
void spoolPage(GraphicsContext& ctx, int pageNumber, float width);
void end();
// Used by layout tests.
static int pageNumberForElement(Element*, const FloatSize& pageSizeInPixels);
static String pageProperty(Frame* frame, const char* propertyName, int pageNumber);
static bool isPageBoxVisible(Frame* frame, int pageNumber);
static String pageSizeAndMarginsInPixels(Frame* frame, int pageNumber, int width, int height, int marginTop, int marginRight, int marginBottom, int marginLeft);
static int numberOfPages(Frame*, const FloatSize& pageSizeInPixels);
// Draw all pages into a graphics context with lines which mean page boundaries.
// The height of the graphics context should be
// (pageSizeInPixels.height() + 1) * number-of-pages - 1
static void spoolAllPagesWithBoundaries(Frame*, GraphicsContext&, const FloatSize& pageSizeInPixels);
protected:
Frame* m_frame;
Vector<IntRect> m_pageRects;
private:
void computePageRectsWithPageSizeInternal(const FloatSize& pageSizeInPixels, bool allowHorizontalMultiPages);
// Used to prevent misuses of begin() and end() (e.g., call end without begin).
bool m_isPrinting;
};
}
#endif
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