Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtk2ui/printing_gtk2_util.cc

-// Copyright 2014 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 "chrome/browser/ui/libgtk2ui/printing_gtk2_util.h"
-
-#include <gtk/gtk.h>
-#include <gtk/gtkunixprint.h>
-
-#include "base/strings/string16.h"
-#include "base/strings/utf_string_conversions.h"
-#include "printing/print_settings.h"
-#include "printing/printing_context_linux.h"
-#include "printing/units.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/geometry/size_f.h"
-
-namespace {
-
-const double kTopMarginInInch = 0.25;
-const double kBottomMarginInInch = 0.56;
-const double kLeftMarginInInch = 0.25;
-const double kRightMarginInInch = 0.25;
-
-}  // namespace
-
-gfx::Size GetPdfPaperSizeDeviceUnitsGtk(
-    printing::PrintingContextLinux* context) {
-  GtkPageSetup* page_setup = gtk_page_setup_new();
-
-  gfx::SizeF paper_size(
-      gtk_page_setup_get_paper_width(page_setup, GTK_UNIT_INCH),
-      gtk_page_setup_get_paper_height(page_setup, GTK_UNIT_INCH));
-
-  g_object_unref(page_setup);
-
-  const printing::PrintSettings& settings = context->settings();
-
-  return gfx::Size(
-      paper_size.width() * settings.device_units_per_inch(),
-      paper_size.height() * settings.device_units_per_inch());
-}
-
-void InitPrintSettingsGtk(GtkPrintSettings* settings,
-                          GtkPageSetup* page_setup,
-                          printing::PrintSettings* print_settings) {
-  DCHECK(settings);
-  DCHECK(page_setup);
-  DCHECK(print_settings);
-
-  base::string16 name(base::UTF8ToUTF16(static_cast<const char*>(
-      gtk_print_settings_get_printer(settings))));
-  print_settings->set_device_name(name);
-
-  gfx::Size physical_size_device_units;
-  gfx::Rect printable_area_device_units;
-  int dpi = gtk_print_settings_get_resolution(settings);
-  if (dpi) {
-    // Initialize page_setup_device_units_.
-    physical_size_device_units.SetSize(
-        gtk_page_setup_get_paper_width(page_setup, GTK_UNIT_INCH) * dpi,
-        gtk_page_setup_get_paper_height(page_setup, GTK_UNIT_INCH) * dpi);
-    printable_area_device_units.SetRect(
-        gtk_page_setup_get_left_margin(page_setup, GTK_UNIT_INCH) * dpi,
-        gtk_page_setup_get_top_margin(page_setup, GTK_UNIT_INCH) * dpi,
-        gtk_page_setup_get_page_width(page_setup, GTK_UNIT_INCH) * dpi,
-        gtk_page_setup_get_page_height(page_setup, GTK_UNIT_INCH) * dpi);
-  } else {
-    // Use default values if we cannot get valid values from the print dialog.
-    dpi = printing::kPixelsPerInch;
-    double page_width_in_pixel = printing::kLetterWidthInch * dpi;
-    double page_height_in_pixel = printing::kLetterHeightInch * dpi;
-    physical_size_device_units.SetSize(
-        static_cast<int>(page_width_in_pixel),
-        static_cast<int>(page_height_in_pixel));
-    printable_area_device_units.SetRect(
-        static_cast<int>(kLeftMarginInInch * dpi),
-        static_cast<int>(kTopMarginInInch * dpi),
-        page_width_in_pixel - (kLeftMarginInInch + kRightMarginInInch) * dpi,
-        page_height_in_pixel - (kTopMarginInInch + kBottomMarginInInch) * dpi);
-  }
-
-  print_settings->set_dpi(dpi);
-
-  // Note: With the normal GTK print dialog, when the user selects the landscape
-  // orientation, all that does is change the paper size. Which seems to be
-  // enough to render the right output and send it to the printer.
-  // The orientation value stays as portrait and does not actually affect
-  // printing.
-  // Thus this is only useful in print preview mode, where we manually set the
-  // orientation and change the paper size ourselves.
-  GtkPageOrientation orientation = gtk_print_settings_get_orientation(settings);
-  // Set before SetPrinterPrintableArea to make it flip area if necessary.
-  print_settings->SetOrientation(orientation == GTK_PAGE_ORIENTATION_LANDSCAPE);
-  DCHECK_EQ(print_settings->device_units_per_inch(), dpi);
-  print_settings->SetPrinterPrintableArea(physical_size_device_units,
-                                          printable_area_device_units,
-                                          true);
-}