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Side by Side Diff: chrome/browser/printing/print_settings.cc

Issue 149212: Move printing related stuff to the root printing project from the browser pro... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 11 years, 5 months ago
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1 // Copyright (c) 2006-2008 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 "chrome/browser/printing/print_settings.h"
6
7 #include "base/atomic_sequence_num.h"
8 #include "base/logging.h"
9 #include "chrome/common/render_messages.h"
10 #include "printing/units.h"
11
12 namespace printing {
13
14 // Global SequenceNumber used for generating unique cookie values.
15 static base::AtomicSequenceNumber cookie_seq(base::LINKER_INITIALIZED);
16
17 PrintSettings::PrintSettings()
18 : min_shrink(1.25),
19 max_shrink(2.0),
20 desired_dpi(72),
21 selection_only(false),
22 dpi_(0),
23 landscape_(false) {
24 }
25
26 void PrintSettings::Clear() {
27 ranges.clear();
28 min_shrink = 1.25;
29 max_shrink = 2.;
30 desired_dpi = 72;
31 selection_only = false;
32 printer_name_.clear();
33 device_name_.clear();
34 page_setup_pixels_.Clear();
35 dpi_ = 0;
36 landscape_ = false;
37 }
38
39 #ifdef WIN32
40 void PrintSettings::Init(HDC hdc,
41 const DEVMODE& dev_mode,
42 const PageRanges& new_ranges,
43 const std::wstring& new_device_name,
44 bool print_selection_only) {
45 DCHECK(hdc);
46 printer_name_ = dev_mode.dmDeviceName;
47 device_name_ = new_device_name;
48 ranges = new_ranges;
49 landscape_ = dev_mode.dmOrientation == DMORIENT_LANDSCAPE;
50 selection_only = print_selection_only;
51
52 dpi_ = GetDeviceCaps(hdc, LOGPIXELSX);
53 // No printer device is known to advertise different dpi in X and Y axis; even
54 // the fax device using the 200x100 dpi setting. It's ought to break so many
55 // applications that it's not even needed to care about. WebKit doesn't
56 // support different dpi settings in X and Y axis.
57 DCHECK_EQ(dpi_, GetDeviceCaps(hdc, LOGPIXELSY));
58
59 DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORX), 0);
60 DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORY), 0);
61
62 // Initialize page_setup_pixels_.
63 gfx::Size physical_size_pixels(GetDeviceCaps(hdc, PHYSICALWIDTH),
64 GetDeviceCaps(hdc, PHYSICALHEIGHT));
65 gfx::Rect printable_area_pixels(GetDeviceCaps(hdc, PHYSICALOFFSETX),
66 GetDeviceCaps(hdc, PHYSICALOFFSETY),
67 GetDeviceCaps(hdc, HORZRES),
68 GetDeviceCaps(hdc, VERTRES));
69
70 SetPrinterPrintableArea(physical_size_pixels, printable_area_pixels);
71 }
72 #endif
73
74 void PrintSettings::SetPrinterPrintableArea(
75 gfx::Size const& physical_size_pixels,
76 gfx::Rect const& printable_area_pixels) {
77
78 int margin_printer_units = ConvertUnit(500, kHundrethsMMPerInch, dpi_);
79
80 // Start by setting the user configuration
81 // Hard-code text_height = 0.5cm = ~1/5 of inch
82 page_setup_pixels_.Init(physical_size_pixels,
83 printable_area_pixels,
84 margin_printer_units);
85
86 // Now apply user configured settings.
87 PageMargins margins;
88 margins.header = margin_printer_units;
89 margins.footer = margin_printer_units;
90 margins.left = margin_printer_units;
91 margins.top = margin_printer_units;
92 margins.right = margin_printer_units;
93 margins.bottom = margin_printer_units;
94 page_setup_pixels_.SetRequestedMargins(margins);
95 }
96
97 void PrintSettings::RenderParams(ViewMsg_Print_Params* params) const {
98 DCHECK(params);
99 params->printable_size.SetSize(page_setup_pixels_.content_area().width(),
100 page_setup_pixels_.content_area().height());
101 params->dpi = dpi_;
102 // Currently hardcoded at 1.25. See PrintSettings' constructor.
103 params->min_shrink = min_shrink;
104 // Currently hardcoded at 2.0. See PrintSettings' constructor.
105 params->max_shrink = max_shrink;
106 // Currently hardcoded at 72dpi. See PrintSettings' constructor.
107 params->desired_dpi = desired_dpi;
108 // Always use an invalid cookie.
109 params->document_cookie = 0;
110 params->selection_only = selection_only;
111 }
112
113 bool PrintSettings::Equals(const PrintSettings& rhs) const {
114 // Do not test the display device name (printer_name_) for equality since it
115 // may sometimes be chopped off at 30 chars. As long as device_name is the
116 // same, that's fine.
117 return ranges == rhs.ranges &&
118 min_shrink == rhs.min_shrink &&
119 max_shrink == rhs.max_shrink &&
120 desired_dpi == rhs.desired_dpi &&
121 overlays.Equals(rhs.overlays) &&
122 device_name_ == rhs.device_name_ &&
123 page_setup_pixels_.Equals(rhs.page_setup_pixels_) &&
124 dpi_ == rhs.dpi_ &&
125 landscape_ == rhs.landscape_;
126 }
127
128 int PrintSettings::NewCookie() {
129 // A cookie of 0 is used to mark a document as unassigned, count from 1.
130 return cookie_seq.GetNext() + 1;
131 }
132
133 } // namespace printing
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