blob: bfc7868e19fbe2bbe5317443a250c64269d0cf6a [file] [log] [blame]
// Copyright (c) 2006-2008 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 "base/logging.h"
#include "base/sys_string_conversions.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) {
}
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;
}
#ifdef WIN32
void PrintSettings::Init(HDC hdc,
const DEVMODE& dev_mode,
const PageRanges& new_ranges,
const std::wstring& new_device_name,
bool print_selection_only) {
DCHECK(hdc);
printer_name_ = dev_mode.dmDeviceName;
device_name_ = new_device_name;
ranges = new_ranges;
landscape_ = dev_mode.dmOrientation == DMORIENT_LANDSCAPE;
selection_only = print_selection_only;
dpi_ = GetDeviceCaps(hdc, LOGPIXELSX);
// No printer device is known to advertise different dpi in X and Y axis; even
// the fax device using the 200x100 dpi setting. It's ought to break so many
// applications that it's not even needed to care about. WebKit doesn't
// support different dpi settings in X and Y axis.
DCHECK_EQ(dpi_, GetDeviceCaps(hdc, LOGPIXELSY));
DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORX), 0);
DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORY), 0);
// Initialize page_setup_device_units_.
gfx::Size physical_size_device_units(GetDeviceCaps(hdc, PHYSICALWIDTH),
GetDeviceCaps(hdc, PHYSICALHEIGHT));
gfx::Rect printable_area_device_units(GetDeviceCaps(hdc, PHYSICALOFFSETX),
GetDeviceCaps(hdc, PHYSICALOFFSETY),
GetDeviceCaps(hdc, HORZRES),
GetDeviceCaps(hdc, VERTRES));
SetPrinterPrintableArea(physical_size_device_units,
printable_area_device_units,
dpi_);
}
#elif defined(OS_MACOSX)
void PrintSettings::Init(PMPrinter printer, PMPageFormat page_format,
const PageRanges& new_ranges,
bool print_selection_only) {
printer_name_ = base::SysCFStringRefToWide(PMPrinterGetName(printer));
device_name_ = base::SysCFStringRefToWide(PMPrinterGetID(printer));
ranges = new_ranges;
PMOrientation orientation = kPMPortrait;
PMGetOrientation(page_format, &orientation);
landscape_ = orientation == kPMLandscape;
selection_only = print_selection_only;
UInt32 resolution_count = 0;
PMResolution best_resolution = { 72.0, 72.0 };
OSStatus status = PMPrinterGetPrinterResolutionCount(printer,
&resolution_count);
if (status == noErr) {
// Resolution indexes are 1-based.
for (uint32 i = 1; i <= resolution_count; ++i) {
PMResolution resolution;
PMPrinterGetIndexedPrinterResolution(printer, i, &resolution);
if (resolution.hRes > best_resolution.hRes)
best_resolution = resolution;
}
}
dpi_ = best_resolution.hRes;
// See comment in the Windows code above.
DCHECK_EQ(dpi_, best_resolution.vRes);
// Get printable area and paper rects (in points)
PMRect page_rect, paper_rect;
PMGetAdjustedPageRect(page_format, &page_rect);
PMGetAdjustedPaperRect(page_format, &paper_rect);
// Device units are in points. Units per inch is 72.
gfx::Size physical_size_device_units(
(paper_rect.right - paper_rect.left),
(paper_rect.bottom - paper_rect.top));
gfx::Rect printable_area_device_units(
(page_rect.left - paper_rect.left),
(page_rect.top - paper_rect.top),
(page_rect.right - page_rect.left),
(page_rect.bottom - page_rect.top));
SetPrinterPrintableArea(physical_size_device_units,
printable_area_device_units,
72);
}
#endif
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