151 lines
4.8 KiB
C++
151 lines
4.8 KiB
C++
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef _PRINTING_PRINT_SETTINGS_H
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#define _PRINTING_PRINT_SETTINGS_H
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#include "base/gfx/rect.h"
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#include "printing/page_range.h"
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#include "printing/page_setup.h"
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typedef struct HDC__* HDC;
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typedef struct _devicemodeW DEVMODE;
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namespace printing {
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// Parameters for a render request.
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struct PrintParams {
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// In pixels according to dpi_x and dpi_y.
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gfx::Size printable_size;
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// Specifies dots per inch.
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double dpi;
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// Minimum shrink factor. See PrintSettings::min_shrink for more information.
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double min_shrink;
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// Maximum shrink factor. See PrintSettings::max_shrink for more information.
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double max_shrink;
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// Desired apparent dpi on paper.
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int desired_dpi;
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// Cookie for the document to ensure correctness.
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int document_cookie;
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// Indicates if the user only wants to print the current selection.
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bool selection_only;
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// Indicates if the user wants to print to file.
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bool to_file;
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// Warning: do not compare document_cookie.
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bool Equals(const PrintParams& rhs) const {
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return printable_size == rhs.printable_size &&
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dpi == rhs.dpi &&
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min_shrink == rhs.min_shrink &&
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max_shrink == rhs.max_shrink &&
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desired_dpi == rhs.desired_dpi &&
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selection_only == rhs.selection_only &&
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to_file == rhs.to_file;
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}
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};
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// OS-independent print settings.
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class PrintSettings {
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public:
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PrintSettings();
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// Reinitialize the settings to the default values.
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void Clear();
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#ifdef WIN32
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// Reads the settings from the selected device context. Calculates derived
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// values like printable_area_.
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void Init(HDC hdc,
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const DEVMODE& dev_mode,
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const PageRanges& new_ranges,
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const std::wstring& new_device_name,
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bool selection_only,
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bool to_file);
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#endif
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// Set printer printable area in pixels.
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void SetPrinterPrintableArea(gfx::Size const& physical_size_pixels,
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gfx::Rect const& printable_area_pixels);
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// Initializes the print parameters that needs to be sent to the renderer
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// process.
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void RenderParams(PrintParams* params) const;
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// Equality operator.
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// NOTE: printer_name is NOT tested for equality since it doesn't affect the
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// output.
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bool Equals(const PrintSettings& rhs) const;
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const std::wstring& printer_name() const { return printer_name_; }
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void set_device_name(const std::wstring& device_name) {
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device_name_ = device_name;
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}
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const std::wstring& device_name() const { return device_name_; }
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int dpi() const { return dpi_; }
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const PageSetup& page_setup_pixels() const { return page_setup_pixels_; }
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// Multi-page printing. Each PageRange describes a from-to page combination.
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// This permits printing selected pages only.
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PageRanges ranges;
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// By imaging to a width a little wider than the available pixels, thin pages
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// will be scaled down a little, matching the way they print in IE and Camino.
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// This lets them use fewer sheets than they would otherwise, which is
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// presumably why other browsers do this. Wide pages will be scaled down more
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// than this.
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double min_shrink;
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// This number determines how small we are willing to reduce the page content
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// in order to accommodate the widest line. If the page would have to be
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// reduced smaller to make the widest line fit, we just clip instead (this
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// behavior matches MacIE and Mozilla, at least)
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double max_shrink;
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// Desired visible dots per inch rendering for output. Printing should be
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// scaled to ScreenDpi/dpix*desired_dpi.
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int desired_dpi;
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// Indicates if the user only wants to print the current selection.
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bool selection_only;
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// Indicates if the user wants to print to file.
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bool to_file;
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// Cookie generator. It is used to initialize PrintedDocument with its
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// associated PrintSettings, to be sure that each generated PrintedPage is
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// correctly associated with its corresponding PrintedDocument.
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static int NewCookie();
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private:
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//////////////////////////////////////////////////////////////////////////////
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// Settings that can't be changed without side-effects.
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// Printer name as shown to the user.
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std::wstring printer_name_;
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// Printer device name as opened by the OS.
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std::wstring device_name_;
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// Page setup in pixel units, dpi adjusted.
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PageSetup page_setup_pixels_;
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// Printer's device effective dots per inch in both axis.
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int dpi_;
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// Is the orientation landscape or portrait.
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bool landscape_;
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};
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} // namespace printing
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#endif // _PRINTING_PRINT_SETTINGS_H
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