1 files changed, 116 insertions, 0 deletions
diff --git a/printing/print_settings.cc b/printing/print_settings.cc
new file mode 100644
index 0000000..b76821b
--- /dev/null
+++ b/printing/print_settings.cc
@@ -0,0 +1,116 @@
+// Copyright (c) 2006-2008 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 "printing/print_settings.h"
+
+#include "base/atomic_sequence_num.h"
+#include "base/logging.h"
+#include "printing/units.h"
+
+namespace printing {
+
+// Global SequenceNumber used for generating unique cookie values.
+static base::AtomicSequenceNumber cookie_seq(base::LINKER_INITIALIZED);
+
+PrintSettings::PrintSettings()
+    : min_shrink(1.25),
+      max_shrink(2.0),
+      desired_dpi(72),
+      selection_only(false),
+      dpi_(0),
+      landscape_(false) {
+}
+
+void PrintSettings::Clear() {
+  ranges.clear();
+  min_shrink = 1.25;
+  max_shrink = 2.;
+  desired_dpi = 72;
+  selection_only = false;
+  printer_name_.clear();
+  device_name_.clear();
+  page_setup_pixels_.Clear();
+  dpi_ = 0;
+  landscape_ = false;
+}
+
+#ifdef WIN32
+void PrintSettings::Init(HDC hdc,
+                         const DEVMODE& dev_mode,
+                         const PageRanges& new_ranges,
+                         const std::wstring& new_device_name,
+                         bool print_selection_only) {
+  DCHECK(hdc);
+  printer_name_ = dev_mode.dmDeviceName;
+  device_name_ = new_device_name;
+  ranges = new_ranges;
+  landscape_ = dev_mode.dmOrientation == DMORIENT_LANDSCAPE;
+  selection_only = print_selection_only;
+
+  dpi_ = GetDeviceCaps(hdc, LOGPIXELSX);
+  // No printer device is known to advertise different dpi in X and Y axis; even
+  // the fax device using the 200x100 dpi setting. It's ought to break so many
+  // applications that it's not even needed to care about. WebKit doesn't
+  // support different dpi settings in X and Y axis.
+  DCHECK_EQ(dpi_, GetDeviceCaps(hdc, LOGPIXELSY));
+
+  DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORX), 0);
+  DCHECK_EQ(GetDeviceCaps(hdc, SCALINGFACTORY), 0);
+
+  // Initialize page_setup_pixels_.
+  gfx::Size physical_size_pixels(GetDeviceCaps(hdc, PHYSICALWIDTH),
+                                 GetDeviceCaps(hdc, PHYSICALHEIGHT));
+  gfx::Rect printable_area_pixels(GetDeviceCaps(hdc, PHYSICALOFFSETX),
+                                  GetDeviceCaps(hdc, PHYSICALOFFSETY),
+                                  GetDeviceCaps(hdc, HORZRES),
+                                  GetDeviceCaps(hdc, VERTRES));
+
+  SetPrinterPrintableArea(physical_size_pixels, printable_area_pixels);
+}
+#endif
+
+void PrintSettings::SetPrinterPrintableArea(
+    gfx::Size const& physical_size_pixels,
+    gfx::Rect const& printable_area_pixels) {
+
+  int margin_printer_units = ConvertUnit(500, kHundrethsMMPerInch, dpi_);
+
+  // Start by setting the user configuration
+  // Hard-code text_height = 0.5cm = ~1/5 of inch
+  page_setup_pixels_.Init(physical_size_pixels,
+                          printable_area_pixels,
+                          margin_printer_units);
+
+  // Now apply user configured settings.
+  PageMargins margins;
+  margins.header = margin_printer_units;
+  margins.footer = margin_printer_units;
+  margins.left = margin_printer_units;
+  margins.top = margin_printer_units;
+  margins.right = margin_printer_units;
+  margins.bottom = margin_printer_units;
+  page_setup_pixels_.SetRequestedMargins(margins);
+}
+
+bool PrintSettings::Equals(const PrintSettings& rhs) const {
+  // Do not test the display device name (printer_name_) for equality since it
+  // may sometimes be chopped off at 30 chars. As long as device_name is the
+  // same, that's fine.
+  return ranges == rhs.ranges &&
+      min_shrink == rhs.min_shrink &&
+      max_shrink == rhs.max_shrink &&
+      desired_dpi == rhs.desired_dpi &&
+      overlays.Equals(rhs.overlays) &&
+      device_name_ == rhs.device_name_ &&
+      page_setup_pixels_.Equals(rhs.page_setup_pixels_) &&
+      dpi_ == rhs.dpi_ &&
+      landscape_ == rhs.landscape_;
+}
+
+int PrintSettings::NewCookie() {
+  // A cookie of 0 is used to mark a document as unassigned, count from 1.
+  return cookie_seq.GetNext() + 1;
+}
+
+}  // namespace printing