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// Copyright (c) 2010 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.
#include "printing/print_settings.h"
#include "base/atomic_sequence_num.h"
#include "printing/units.h"
namespace printing {
// Global SequenceNumber used for generating unique cookie values.
static base::AtomicSequenceNumber cookie_seq(base::LINKER_INITIALIZED);
PrintSettings::PrintSettings()
: min_shrink(1.25),
max_shrink(2.0),
desired_dpi(72),
selection_only(false),
use_overlays(true),
dpi_(0),
landscape_(false),
supports_alpha_blend_(true) {
}
PrintSettings::~PrintSettings() {
}
void PrintSettings::Clear() {
ranges.clear();
min_shrink = 1.25;
max_shrink = 2.;
desired_dpi = 72;
selection_only = false;
printer_name_.clear();
device_name_.clear();
page_setup_device_units_.Clear();
dpi_ = 0;
landscape_ = false;
supports_alpha_blend_ = true;
}
void PrintSettings::SetPrinterPrintableArea(
gfx::Size const& physical_size_device_units,
gfx::Rect const& printable_area_device_units,
int units_per_inch) {
int header_footer_text_height = 0;
int margin_printer_units = 0;
if (use_overlays) {
// Hard-code text_height = 0.5cm = ~1/5 of inch.
header_footer_text_height = ConvertUnit(500, kHundrethsMMPerInch,
units_per_inch);
// Default margins 1.0cm = ~2/5 of an inch.
margin_printer_units = ConvertUnit(1000, kHundrethsMMPerInch,
units_per_inch);
}
// Start by setting the user configuration
page_setup_device_units_.Init(physical_size_device_units,
printable_area_device_units,
header_footer_text_height);
// Apply default margins (not user configurable just yet).
// Since the font height is half the margin we put the header and footers at
// the font height from the margins.
PageMargins margins;
margins.header = header_footer_text_height;
margins.footer = header_footer_text_height;
margins.left = margin_printer_units;
margins.top = margin_printer_units;
margins.right = margin_printer_units;
margins.bottom = margin_printer_units;
page_setup_device_units_.SetRequestedMargins(margins);
}
bool PrintSettings::Equals(const PrintSettings& rhs) const {
// Do not test the display device name (printer_name_) for equality since it
// may sometimes be chopped off at 30 chars. As long as device_name is the
// same, that's fine.
return ranges == rhs.ranges &&
min_shrink == rhs.min_shrink &&
max_shrink == rhs.max_shrink &&
desired_dpi == rhs.desired_dpi &&
overlays.Equals(rhs.overlays) &&
device_name_ == rhs.device_name_ &&
page_setup_device_units_.Equals(rhs.page_setup_device_units_) &&
dpi_ == rhs.dpi_ &&
landscape_ == rhs.landscape_;
}
int PrintSettings::NewCookie() {
// A cookie of 0 is used to mark a document as unassigned, count from 1.
return cookie_seq.GetNext() + 1;
}
} // namespace printing
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