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_win.h" 6 7 #include <windows.h> 8 9 #include "printing/print_settings.h" 10 11 namespace printing { 12 13 // static 14 void PrintSettingsInitializerWin::InitPrintSettings( 15 HDC hdc, 16 const DEVMODE& dev_mode, 17 const PageRanges& new_ranges, 18 const std::wstring& new_device_name, 19 bool print_selection_only, 20 PrintSettings* print_settings) { 21 DCHECK(hdc); 22 DCHECK(print_settings); 23 24 print_settings->set_printer_name(dev_mode.dmDeviceName); 25 print_settings->set_device_name(new_device_name); 26 print_settings->ranges = const_cast<PageRanges&>(new_ranges); 27 print_settings->set_landscape(dev_mode.dmOrientation == DMORIENT_LANDSCAPE); 28 print_settings->selection_only = print_selection_only; 29 30 int dpi = GetDeviceCaps(hdc, LOGPIXELSX); 31 print_settings->set_dpi(dpi); 32 const int kAlphaCaps = SB_CONST_ALPHA | SB_PIXEL_ALPHA; 33 print_settings->set_supports_alpha_blend( 34 (GetDeviceCaps(hdc, SHADEBLENDCAPS) & kAlphaCaps) == kAlphaCaps); 35 // No printer device is known to advertise different dpi in X and Y axis; even 36 // the fax device using the 200x100 dpi setting. It's ought to break so many 37 // applications that it's not even needed to care about. WebKit doesn't 38 // support different dpi settings in X and Y axis. 39 DCHECK_EQ(dpi, GetDeviceCaps(hdc, LOGPIXELSY)); 40 41 DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORX), 0); 42 DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORY), 0); 43 44 // Initialize page_setup_device_units_. 45 gfx::Size physical_size_device_units(GetDeviceCaps(hdc, PHYSICALWIDTH), 46 GetDeviceCaps(hdc, PHYSICALHEIGHT)); 47 gfx::Rect printable_area_device_units(GetDeviceCaps(hdc, PHYSICALOFFSETX), 48 GetDeviceCaps(hdc, PHYSICALOFFSETY), 49 GetDeviceCaps(hdc, HORZRES), 50 GetDeviceCaps(hdc, VERTRES)); 51 52 // Sanity check the printable_area: we've seen crashes caused by a printable 53 // area rect of 0, 0, 0, 0, so it seems some drivers don't set it. 54 if (printable_area_device_units.IsEmpty() || 55 !gfx::Rect(physical_size_device_units).Contains( 56 printable_area_device_units)) { 57 printable_area_device_units = gfx::Rect(physical_size_device_units); 58 } 59 60 print_settings->SetPrinterPrintableArea(physical_size_device_units, 61 printable_area_device_units, 62 dpi); 63 } 64 65 } // namespace printing 66
