f864aac3d5
When the DPI entry is missing, the page size, content size, and printable area of PrintSettings will be empty. Some printers may not set their DPI, so provide a OS-dependent default DPI. Change-Id: Ic18cd6543801228bd18e69e3b9607c48250551d7 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4222980 Commit-Queue: Andy Phan <andyphan@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Cr-Commit-Position: refs/heads/main@{#1108038}
63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
// Copyright 2011 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "printing/print_settings_initializer_mac.h"
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#include <stdint.h>
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#include "base/strings/sys_string_conversions.h"
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#include "printing/print_settings.h"
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#include "printing/units.h"
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namespace printing {
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// static
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void PrintSettingsInitializerMac::InitPrintSettings(
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PMPrinter printer,
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PMPageFormat page_format,
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PrintSettings* print_settings) {
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print_settings->set_device_name(
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base::SysCFStringRefToUTF16(PMPrinterGetID(printer)));
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PMOrientation orientation = kPMPortrait;
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PMGetOrientation(page_format, &orientation);
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print_settings->SetOrientation(orientation == kPMLandscape);
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UInt32 resolution_count = 0;
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PMResolution best_resolution = {kDefaultMacDpi, kDefaultMacDpi};
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OSStatus status =
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PMPrinterGetPrinterResolutionCount(printer, &resolution_count);
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if (status == noErr) {
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// Resolution indexes are 1-based.
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for (uint32_t i = 1; i <= resolution_count; ++i) {
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PMResolution resolution;
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PMPrinterGetIndexedPrinterResolution(printer, i, &resolution);
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if (resolution.hRes > best_resolution.hRes)
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best_resolution = resolution;
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}
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}
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int dpi = best_resolution.hRes;
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print_settings->set_dpi(dpi);
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DCHECK_EQ(dpi, best_resolution.vRes);
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// Get printable area and paper rects (in points)
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PMRect page_rect, paper_rect;
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PMGetAdjustedPageRect(page_format, &page_rect);
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PMGetAdjustedPaperRect(page_format, &paper_rect);
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// Device units are in points. Units per inch is 72.
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gfx::Size physical_size_device_units((paper_rect.right - paper_rect.left),
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(paper_rect.bottom - paper_rect.top));
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gfx::Rect printable_area_device_units(
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(page_rect.left - paper_rect.left), (page_rect.top - paper_rect.top),
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(page_rect.right - page_rect.left), (page_rect.bottom - page_rect.top));
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DCHECK_EQ(print_settings->device_units_per_inch(), kPointsPerInch);
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print_settings->SetPrinterPrintableArea(physical_size_device_units,
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printable_area_device_units, false);
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}
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} // namespace printing
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