extensions/source/scanner/sane.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef INCLUDED_EXTENSIONS_SOURCE_SCANNER_SANE_HXX
  20 #define INCLUDED_EXTENSIONS_SOURCE_SCANNER_SANE_HXX
  21
  22 #include <osl/thread.h>
  23 #include <osl/module.h>
  24 #include <vcl/bitmap.hxx>
  25 #include <sane/sane.h>
  26 #include <scanner.hxx>
  27
  28
  29 // - BitmapTransporter -
  30
  31
  32 class BitmapTransporter : public OWeakObject, css::awt::XBitmap
  33 {
  34     SvMemoryStream                      m_aStream;
  35     osl::Mutex                          m_aProtector;
  36
  37 public:
  38
  39                                         BitmapTransporter();
  40     virtual                             ~BitmapTransporter();
  41
  42
  43     // XInterface
  44     virtual Any SAL_CALL                queryInterface( const Type & rType ) throw( RuntimeException, std::exception ) SAL_OVERRIDE;
  45     virtual void SAL_CALL               acquire() throw() SAL_OVERRIDE { OWeakObject::acquire(); }
  46     virtual void SAL_CALL               release() throw() SAL_OVERRIDE { OWeakObject::release(); }
  47
  48     virtual css::awt::Size SAL_CALL          getSize() throw(std::exception) SAL_OVERRIDE;
  49     virtual Sequence< sal_Int8 > SAL_CALL    getDIB() throw(std::exception) SAL_OVERRIDE;
  50     virtual Sequence< sal_Int8 > SAL_CALL    getMaskDIB() throw(std::exception) SAL_OVERRIDE { return Sequence< sal_Int8 >(); }
  51
  52     // Misc
  53     void                                lock() { m_aProtector.acquire(); }
  54     void                                unlock() { m_aProtector.release(); }
  55     SvMemoryStream&                     getStream() { return m_aStream; }
  56 };
  57
  58
  59 // - Sane -
  60
  61
  62 class Sane
  63 {
  64 private:
  65     static int              nRefCount;
  66     static oslModule        pSaneLib;
  67
  68     static SANE_Status      (*p_init)( SANE_Int*,
  69                                        SANE_Auth_Callback );
  70     static void             (*p_exit)();
  71     static SANE_Status      (*p_get_devices)( const SANE_Device***,
  72                                               SANE_Bool );
  73     static SANE_Status      (*p_open)( SANE_String_Const, SANE_Handle );
  74     static void             (*p_close)( SANE_Handle );
  75     static const SANE_Option_Descriptor* (*p_get_option_descriptor)(
  76         SANE_Handle, SANE_Int );
  77     static SANE_Status      (*p_control_option)( SANE_Handle, SANE_Int,
  78                                                  SANE_Action, void*,
  79                                                  SANE_Int* );
  80     static SANE_Status      (*p_get_parameters)( SANE_Handle,
  81                                                  SANE_Parameters* );
  82     static SANE_Status      (*p_start)( SANE_Handle );
  83     static SANE_Status      (*p_read)( SANE_Handle, SANE_Byte*, SANE_Int,
  84                                        SANE_Int* );
  85     static void             (*p_cancel)( SANE_Handle );
  86     static SANE_Status      (*p_set_io_mode)( SANE_Handle, SANE_Bool );
  87     static SANE_Status      (*p_get_select_fd)( SANE_Handle, SANE_Int* );
  88     static SANE_String_Const (*p_strstatus)( SANE_Status );
  89
  90     static SANE_Int             nVersion;
  91     static SANE_Device**        ppDevices;
  92     static int                  nDevices;
  93
  94     const SANE_Option_Descriptor**  mppOptions;
  95     int                             mnOptions;
  96     int                             mnDevice;
  97     SANE_Handle                     maHandle;
  98
  99     Link<>                      maReloadOptionsLink;
 100
 101     static inline oslGenericFunction
 102                     LoadSymbol( const char* );
 103     static void     Init();
 104     static void     DeInit();
 105
 106     SANE_Status ControlOption( int, SANE_Action, void* );
 107
 108     bool CheckConsistency( const char*, bool bInit = false );
 109
 110 public:
 111     Sane();
 112     ~Sane();
 113
 114     static bool         IsSane()
 115         { return pSaneLib != nullptr; }
 116     bool            IsOpen()
 117         { return maHandle != nullptr; }
 118     static int              CountDevices()
 119         { return nDevices; }
 120     static OUString         GetName( int n )
 121         { return ppDevices[n]->name ? OUString( ppDevices[n]->name, strlen(ppDevices[n]->name),  osl_getThreadTextEncoding() ) : OUString(); }
 122     static OUString         GetVendor( int n )
 123         { return ppDevices[n]->vendor ? OUString( ppDevices[n]->vendor, strlen(ppDevices[n]->vendor), osl_getThreadTextEncoding() ) : OUString(); }
 124     static OUString         GetModel( int n )
 125         { return ppDevices[n]->model ? OUString( ppDevices[n]->model, strlen(ppDevices[n]->model), osl_getThreadTextEncoding() ) : OUString(); }
 126     static OUString         GetType( int n )
 127         { return ppDevices[n]->type ? OUString( ppDevices[n]->type, strlen(ppDevices[n]->type), osl_getThreadTextEncoding() ) : OUString(); }
 128
 129     OUString        GetOptionName( int n )
 130         { return mppOptions[n]->name ? OUString( mppOptions[n]->name, strlen(mppOptions[n]->name), osl_getThreadTextEncoding() ) : OUString(); }
 131     OUString        GetOptionTitle( int n )
 132         { return mppOptions[n]->title ? OUString( mppOptions[n]->title, strlen(mppOptions[n]->title), osl_getThreadTextEncoding() ) : OUString(); }
 133     SANE_Value_Type GetOptionType( int n )
 134         { return mppOptions[n]->type; }
 135     SANE_Unit       GetOptionUnit( int n )
 136         { return mppOptions[n]->unit; }
 137     OUString        GetOptionUnitName( int n );
 138     SANE_Int        GetOptionCap( int n )
 139         { return mppOptions[n]->cap; }
 140     SANE_Constraint_Type GetOptionConstraintType( int n )
 141         { return mppOptions[n]->constraint_type; }
 142     const char**    GetStringConstraint( int n )
 143         { return const_cast<const char**>(mppOptions[n]->constraint.string_list); }
 144     int             GetRange( int, double*& );
 145
 146     inline int      GetOptionElements( int n );
 147     int             GetOptionByName( const char* );
 148     bool            GetOptionValue( int, bool& );
 149     bool            GetOptionValue( int, OString& );
 150     bool            GetOptionValue( int, double&, int nElement = 0 );
 151     bool            GetOptionValue( int, double* );
 152
 153     bool            SetOptionValue( int, bool );
 154     bool            SetOptionValue( int, const OUString& );
 155     bool            SetOptionValue( int, double, int nElement = 0 );
 156     bool            SetOptionValue( int, double* );
 157
 158     bool            ActivateButtonOption( int );
 159
 160     int             CountOptions() { return mnOptions; }
 161     int             GetDeviceNumber() { return mnDevice; }
 162
 163     bool            Open( const char* );
 164     bool            Open( int );
 165     void            Close();
 166     void            ReloadDevices();
 167     void            ReloadOptions();
 168
 169     bool            Start( BitmapTransporter& );
 170
 171     inline Link<>   SetReloadOptionsHdl( const Link<>& rLink );
 172 };
 173
 174 inline int Sane::GetOptionElements( int n )
 175 {
 176     if( mppOptions[n]->type == SANE_TYPE_FIXED ||
 177         mppOptions[n]->type == SANE_TYPE_INT )
 178     {
 179         return mppOptions[n]->size/sizeof( SANE_Word );
 180     }
 181     return 1;
 182 }
 183
 184 inline Link<> Sane::SetReloadOptionsHdl( const Link<>& rLink )
 185 {
 186     Link<> aRet = maReloadOptionsLink;
 187     maReloadOptionsLink = rLink;
 188     return aRet;
 189 }
 190
 191 #endif
 192
 193 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */