1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "printing/print_settings_initializer_gtk.h" 6 7 #include <gtk/gtk.h> 8 #include <gtk/gtkunixprint.h> 9 10 #include "base/strings/string16.h" 11 #include "base/strings/utf_string_conversions.h" 12 #include "printing/print_settings.h" 13 #include "printing/units.h" 14 15 namespace printing { 16 17 // static 18 void PrintSettingsInitializerGtk::InitPrintSettings( 19 GtkPrintSettings* settings, 20 GtkPageSetup* page_setup, 21 PrintSettings* print_settings) { 22 DCHECK(settings); 23 DCHECK(page_setup); 24 DCHECK(print_settings); 25 26 base::string16 name(base::UTF8ToUTF16(static_cast<const char*>( 27 gtk_print_settings_get_printer(settings)))); 28 print_settings->set_device_name(name); 29 30 gfx::Size physical_size_device_units; 31 gfx::Rect printable_area_device_units; 32 int dpi = gtk_print_settings_get_resolution(settings); 33 if (dpi) { 34 // Initialize page_setup_device_units_. 35 physical_size_device_units.SetSize( 36 gtk_page_setup_get_paper_width(page_setup, GTK_UNIT_INCH) * dpi, 37 gtk_page_setup_get_paper_height(page_setup, GTK_UNIT_INCH) * dpi); 38 printable_area_device_units.SetRect( 39 gtk_page_setup_get_left_margin(page_setup, GTK_UNIT_INCH) * dpi, 40 gtk_page_setup_get_top_margin(page_setup, GTK_UNIT_INCH) * dpi, 41 gtk_page_setup_get_page_width(page_setup, GTK_UNIT_INCH) * dpi, 42 gtk_page_setup_get_page_height(page_setup, GTK_UNIT_INCH) * dpi); 43 } else { 44 // Use default values if we cannot get valid values from the print dialog. 45 dpi = kPixelsPerInch; 46 double page_width_in_pixel = kLetterWidthInch * dpi; 47 double page_height_in_pixel = kLetterHeightInch * dpi; 48 physical_size_device_units.SetSize( 49 static_cast<int>(page_width_in_pixel), 50 static_cast<int>(page_height_in_pixel)); 51 printable_area_device_units.SetRect( 52 static_cast<int>(kLeftMarginInInch * dpi), 53 static_cast<int>(kTopMarginInInch * dpi), 54 page_width_in_pixel - (kLeftMarginInInch + kRightMarginInInch) * dpi, 55 page_height_in_pixel - (kTopMarginInInch + kBottomMarginInInch) * dpi); 56 } 57 58 print_settings->set_dpi(dpi); 59 60 // Note: With the normal GTK print dialog, when the user selects the landscape 61 // orientation, all that does is change the paper size. Which seems to be 62 // enough to render the right output and send it to the printer. 63 // The orientation value stays as portrait and does not actually affect 64 // printing. 65 // Thus this is only useful in print preview mode, where we manually set the 66 // orientation and change the paper size ourselves. 67 GtkPageOrientation orientation = gtk_print_settings_get_orientation(settings); 68 // Set before SetPrinterPrintableArea to make it flip area if necessary. 69 print_settings->SetOrientation(orientation == GTK_PAGE_ORIENTATION_LANDSCAPE); 70 DCHECK_EQ(print_settings->device_units_per_inch(), dpi); 71 print_settings->SetPrinterPrintableArea(physical_size_device_units, 72 printable_area_device_units, 73 true); 74 } 75 76 const double PrintSettingsInitializerGtk::kTopMarginInInch = 0.25; 77 const double PrintSettingsInitializerGtk::kBottomMarginInInch = 0.56; 78 const double PrintSettingsInitializerGtk::kLeftMarginInInch = 0.25; 79 const double PrintSettingsInitializerGtk::kRightMarginInInch = 0.25; 80 81 } // namespace printing 82
