printing/printing_context_win.h

   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 #ifndef PRINTING_PRINTING_CONTEXT_WIN_H_
   6 #define PRINTING_PRINTING_CONTEXT_WIN_H_
   7
   8 #include <ocidl.h>
   9 #include <commdlg.h>
  10
  11 #include <string>
  12
  13 #include "base/memory/scoped_ptr.h"
  14 #include "build/build_config.h"
  15 #include "printing/printing_context.h"
  16 #include "ui/gfx/native_widget_types.h"
  17
  18 namespace printing {
  19
  20 class PRINTING_EXPORT PrintingContextWin : public PrintingContext {
  21  public:
  22   explicit PrintingContextWin(Delegate* delegate);
  23   virtual ~PrintingContextWin();
  24
  25   // PrintingContext implementation.
  26   virtual void AskUserForSettings(
  27       int max_pages,
  28       bool has_selection,
  29       const PrintSettingsCallback& callback) OVERRIDE;
  30   virtual Result UseDefaultSettings() OVERRIDE;
  31   virtual gfx::Size GetPdfPaperSizeDeviceUnits() OVERRIDE;
  32   virtual Result UpdatePrinterSettings(bool external_preview,
  33                                        bool show_system_dialog) OVERRIDE;
  34   virtual Result InitWithSettings(const PrintSettings& settings) OVERRIDE;
  35   virtual Result NewDocument(const base::string16& document_name) OVERRIDE;
  36   virtual Result NewPage() OVERRIDE;
  37   virtual Result PageDone() OVERRIDE;
  38   virtual Result DocumentDone() OVERRIDE;
  39   virtual void Cancel() OVERRIDE;
  40   virtual void ReleaseContext() OVERRIDE;
  41   virtual gfx::NativeDrawingContext context() const OVERRIDE;
  42
  43  protected:
  44   virtual scoped_ptr<DEVMODE, base::FreeDeleter> ShowPrintDialog(
  45       HANDLE printer,
  46       gfx::NativeView parent_view,
  47       DEVMODE* dev_mode);
  48
  49  private:
  50   // Used in response to the user canceling the printing.
  51   static BOOL CALLBACK AbortProc(HDC hdc, int nCode);
  52
  53   // Reads the settings from the selected device context. Updates settings_ and
  54   // its margins.
  55   virtual Result InitializeSettings(const base::string16& device_name,
  56                                     DEVMODE* dev_mode);
  57
  58   // The selected printer context.
  59   HDC context_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(PrintingContextWin);
  62 };
  63
  64 }  // namespace printing
  65
  66 #endif  // PRINTING_PRINTING_CONTEXT_WIN_H_