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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 | |
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