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 _SANE_HXX
  20 #define _SANE_HXX
  21
  22 #include <osl/thread.h>
  23 #include <osl/module.h>
  24 #include <tools/string.hxx>
  25 #include <vcl/bitmap.hxx>
  26 #include <sane/sane.h>
  27 #include <scanner.hxx>
  28
  29 // ---------------------
  30 // - BitmapTransporter -
  31 // ---------------------
  32
  33 class BitmapTransporter : public OWeakObject, css::awt::XBitmap
  34 {
  35     SvMemoryStream                      m_aStream;
  36     osl::Mutex                          m_aProtector;
  37
  38 public:
  39
  40                                         BitmapTransporter();
  41     virtual                             ~BitmapTransporter();
  42
  43
  44     // XInterface
  45     virtual Any SAL_CALL                queryInterface( const Type & rType ) throw( RuntimeException );
  46     virtual void SAL_CALL               acquire() throw() { OWeakObject::acquire(); }
  47     virtual void SAL_CALL               release() throw() { OWeakObject::release(); }
  48
  49     virtual css::awt::Size SAL_CALL          getSize() throw();
  50     virtual Sequence< sal_Int8 > SAL_CALL    getDIB() throw();
  51     virtual Sequence< sal_Int8 > SAL_CALL    getMaskDIB() throw() { return Sequence< sal_Int8 >(); }
  52
  53     // Misc
  54     void                                lock() { m_aProtector.acquire(); }
  55     void                                unlock() { m_aProtector.release(); }
  56     SvMemoryStream&                     getStream() { return m_aStream; }
  57 };
  58
  59 // --------
  60 // - Sane -
  61 // --------
  62
  63 class Sane
  64 {
  65 private:
  66     static int              nRefCount;
  67     static oslModule        pSaneLib;
  68
  69     static SANE_Status      (*p_init)( SANE_Int*,
  70                                        SANE_Auth_Callback );
  71     static void             (*p_exit)();
  72     static SANE_Status      (*p_get_devices)( const SANE_Device***,
  73                                               SANE_Bool );
  74     static SANE_Status      (*p_open)( SANE_String_Const, SANE_Handle );
  75     static void             (*p_close)( SANE_Handle );
  76     static const SANE_Option_Descriptor* (*p_get_option_descriptor)(
  77         SANE_Handle, SANE_Int );
  78     static SANE_Status      (*p_control_option)( SANE_Handle, SANE_Int,
  79                                                  SANE_Action, void*,
  80                                                  SANE_Int* );
  81     static SANE_Status      (*p_get_parameters)( SANE_Handle,
  82                                                  SANE_Parameters* );
  83     static SANE_Status      (*p_start)( SANE_Handle );
  84     static SANE_Status      (*p_read)( SANE_Handle, SANE_Byte*, SANE_Int,
  85                                        SANE_Int* );
  86     static void             (*p_cancel)( SANE_Handle );
  87     static SANE_Status      (*p_set_io_mode)( SANE_Handle, SANE_Bool );
  88     static SANE_Status      (*p_get_select_fd)( SANE_Handle, SANE_Int* );
  89     static SANE_String_Const (*p_strstatus)( SANE_Status );
  90
  91     static SANE_Int             nVersion;
  92     static SANE_Device**        ppDevices;
  93     static int                  nDevices;
  94
  95     const SANE_Option_Descriptor**  mppOptions;
  96     int                             mnOptions;
  97     int                             mnDevice;
  98     SANE_Handle                     maHandle;
  99
 100     Link                        maReloadOptionsLink;
 101
 102     inline oslGenericFunction
 103                     LoadSymbol( const char* );
 104     void            Init();
 105     void            DeInit();
 106
 107     SANE_Status ControlOption( int, SANE_Action, void* );
 108
 109     sal_Bool CheckConsistency( const char*, sal_Bool bInit = sal_False );
 110
 111 public:
 112     Sane();
 113     ~Sane();
 114
 115     static sal_Bool         IsSane()
 116         { return pSaneLib ? sal_True : sal_False; }
 117     sal_Bool            IsOpen()
 118         { return maHandle ? sal_True : sal_False; }
 119     static int              CountDevices()
 120         { return nDevices; }
 121     static String           GetName( int n )
 122         { return String( ppDevices[n]->name ? ppDevices[n]->name : "", osl_getThreadTextEncoding() ); }
 123     static String           GetVendor( int n )
 124         { return String( ppDevices[n]->vendor ? ppDevices[n]->vendor : "", osl_getThreadTextEncoding() ); }
 125     static String           GetModel( int n )
 126         { return String( ppDevices[n]->model ? ppDevices[n]->model : "", osl_getThreadTextEncoding() ); }
 127     static String           GetType( int n )
 128         { return String( ppDevices[n]->type ? ppDevices[n]->type : "", osl_getThreadTextEncoding() ); }
 129
 130     String          GetOptionName( int n )
 131         { return String( mppOptions[n]->name ? (char*)mppOptions[n]->name : "", osl_getThreadTextEncoding() ); }
 132     String          GetOptionTitle( int n )
 133         { return String( mppOptions[n]->title ? (char*)mppOptions[n]->title : "", osl_getThreadTextEncoding() ); }
 134     SANE_Value_Type GetOptionType( int n )
 135         { return mppOptions[n]->type; }
 136     SANE_Unit       GetOptionUnit( int n )
 137         { return mppOptions[n]->unit; }
 138     String          GetOptionUnitName( int n );
 139     SANE_Int        GetOptionCap( int n )
 140         { return mppOptions[n]->cap; }
 141     SANE_Constraint_Type GetOptionConstraintType( int n )
 142         { return mppOptions[n]->constraint_type; }
 143     const char**    GetStringConstraint( int n )
 144         { return (const char**)mppOptions[n]->constraint.string_list; }
 145     int             GetRange( int, double*& );
 146
 147     inline int      GetOptionElements( int n );
 148     int             GetOptionByName( const char* );
 149     sal_Bool            GetOptionValue( int, sal_Bool& );
 150     sal_Bool            GetOptionValue( int, OString& );
 151     sal_Bool            GetOptionValue( int, double&, int nElement = 0 );
 152     sal_Bool            GetOptionValue( int, double* );
 153
 154     sal_Bool            SetOptionValue( int, sal_Bool );
 155     sal_Bool            SetOptionValue( int, const String& );
 156     sal_Bool            SetOptionValue( int, double, int nElement = 0 );
 157     sal_Bool            SetOptionValue( int, double* );
 158
 159     sal_Bool            ActivateButtonOption( int );
 160
 161     int             CountOptions() { return mnOptions; }
 162     int             GetDeviceNumber() { return mnDevice; }
 163
 164     sal_Bool            Open( const char* );
 165     sal_Bool            Open( int );
 166     void            Close();
 167     void            ReloadDevices();
 168     void            ReloadOptions();
 169
 170     sal_Bool            Start( BitmapTransporter& );
 171
 172     inline Link     SetReloadOptionsHdl( const Link& rLink );
 173 };
 174
 175 inline int Sane::GetOptionElements( int n )
 176 {
 177     if( mppOptions[n]->type == SANE_TYPE_FIXED ||
 178         mppOptions[n]->type == SANE_TYPE_INT )
 179     {
 180         return mppOptions[n]->size/sizeof( SANE_Word );
 181     }
 182     return 1;
 183 }
 184
 185 inline Link Sane::SetReloadOptionsHdl( const Link& rLink )
 186 {
 187     Link aRet = maReloadOptionsLink;
 188     maReloadOptionsLink = rLink;
 189     return aRet;
 190 }
 191
 192 #endif
 193
 194 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */