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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 "base/component_export.h"
#include "ui/gfx/geometry/rect.h"
namespace printing {
// Margins for a page setup.
class COMPONENT_EXPORT(PRINTING) PageMargins {
public:
PageMargins();
PageMargins(int header, int footer, int left, int right, int top, int bottom);
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 COMPONENT_EXPORT(PRINTING) PageSetup {
public:
PageSetup();
PageSetup(const gfx::Size& physical_size,
const gfx::Rect& printable_area,
const PageMargins& requested_margins,
bool forced_margins,
int text_height);
PageSetup(const PageSetup& other);
~PageSetup();
// Gets a symmetrical printable area.
static gfx::Rect GetSymmetricalPrintableArea(const gfx::Size& page_size,
const gfx::Rect& printable_area);
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_; }
const PageMargins& requested_margins() const { return requested_margins_; }
bool forced_margins() const { return forced_margins_; }
int text_height() const { return text_height_; }
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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