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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PRINTING_PAGE_SETUP_H_
#define PRINTING_PAGE_SETUP_H_
#include "printing/printing_export.h"
#include "ui/gfx/rect.h"
namespace printing {
// Margins for a page setup.
class PRINTING_EXPORT PageMargins {
public:
PageMargins();
void Clear();
// Equality operator.
bool Equals(const PageMargins& rhs) const;
// Vertical space for the overlay from the top of the sheet.
int header;
// Vertical space for the overlay from the bottom of the sheet.
int footer;
// Margin on each side of the sheet.
int left;
int right;
int top;
int bottom;
};
// Settings that define the size and printable areas of a page. Unit is
// unspecified.
class PRINTING_EXPORT PageSetup {
public:
PageSetup();
~PageSetup();
void Clear();
// Equality operator.
bool Equals(const PageSetup& rhs) const;
void Init(const gfx::Size& physical_size, const gfx::Rect& printable_area,
int text_height);
// Use |requested_margins| as long as they fall inside the printable area.
void SetRequestedMargins(const PageMargins& requested_margins);
// Ignore the printable area, and set the margins to |requested_margins|.
void ForceRequestedMargins(const PageMargins& requested_margins);
// Flips the orientation of the page and recalculates all page areas.
void FlipOrientation();
const gfx::Size& physical_size() const { return physical_size_; }
const gfx::Rect& overlay_area() const { return overlay_area_; }
const gfx::Rect& content_area() const { return content_area_; }
const gfx::Rect& printable_area() const { return printable_area_; }
const PageMargins& effective_margins() const {
return effective_margins_;
}
private:
// Store |requested_margins_| and update page setup values.
void SetRequestedMarginsAndCalculateSizes(
const PageMargins& requested_margins);
// Calculate overlay_area_, effective_margins_, and content_area_, based on
// a constraint of |bounds| and |text_height|.
void CalculateSizesWithinRect(const gfx::Rect& bounds, int text_height);
// Physical size of the page, including non-printable margins.
gfx::Size physical_size_;
// The printable area as specified by the printer driver. We can't get
// larger than this.
gfx::Rect printable_area_;
// The printable area for headers and footers.
gfx::Rect overlay_area_;
// The printable area as selected by the user's margins.
gfx::Rect content_area_;
// Effective margins.
PageMargins effective_margins_;
// Requested margins.
PageMargins requested_margins_;
// True when |effective_margins_| respects |printable_area_| else false.
bool forced_margins_;
// Space that must be kept free for the overlays.
int text_height_;
};
} // namespace printing
#endif // PRINTING_PAGE_SETUP_H_
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