104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
#pragma once
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#include "sane/sane_ex.h"
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#include "../sdk/hginclude/huagaoxxx_warraper_ex.h"
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#include <vector>
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#include <algorithm>
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#include <string>
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class sane_options;
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class hg_sane_middleware
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{
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typedef struct _dev_inst
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{
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scanner_handle dev;
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std::string name;
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sane_options* opts;
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_dev_inst()
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{
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dev = nullptr;
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name = "";
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opts = nullptr;
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}
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}DEVINST, * LPDEVINST;
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bool init_ok_;
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std::vector<LPDEVINST> openning_;
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LPDEVINST offline_;
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static hg_sane_middleware *inst_;
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static const SANE_Device** dev_list_;
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static const SANE_Device** to_sane_device(ScannerInfo* hgscanner, int count); // 将驱动层传回的设备列表数据，转换为标准SANE协议的设备列表
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static void free_sane_device(SANE_Device** dev); // 释放由to_sane_device返回的指针
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static void device_pnp(int sig); // 热插拔事件监控
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static SANE_Fixed double_2_sane_fixed(double v);
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static double sane_fixed_2_double(SANE_Fixed v);
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static scanner_handle sane_handle_to_scanner(SANE_Handle h);
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static void free_device_instance(LPDEVINST inst);
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LPDEVINST find_openning_device(SANE_Handle h, bool rmv = false);
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LPDEVINST find_openning_device(const char* name, bool rmv = false);
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enum
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{
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RELOAD_FOR_DEVICE_OPEN = 0,
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RELOAD_FOR_OPT_CHANGED,
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};
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bool reload_options(LPDEVINST inst, int reason);
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scanner_err read_value(scanner_handle h, const char* name, SANE_Value_Type type, size_t len, void* value, bool to_default);
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scanner_err write_value(scanner_handle h, const char* name, SANE_Value_Type type, void* value, bool to_default, LPDEVINST optinst, SANE_Int* affect);
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SANE_Status get_current_value(LPDEVINST inst, const void* opt, void* value, bool default_val);
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SANE_Status set_value(LPDEVINST inst, const void* opt, void* value, SANE_Int* affect, bool to_default, std::string* title = nullptr, std::string* val_text_before = nullptr, std::string* val_text_after = nullptr);
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SANE_Status get_option_fixed_id(LPDEVINST inst, const void* opt, void* value);
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protected:
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hg_sane_middleware(void);
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~hg_sane_middleware();
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public:
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enum
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{
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APP_CALLBACK_AUTH = 0,
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APP_CALLBACK_EX,
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};
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static void set_app_callback(void* cb, void* param = nullptr, int type = APP_CALLBACK_AUTH);
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static void get_version(SANE_Int* ver);
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static hg_sane_middleware* instance(void);
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static void clear(void);
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static SANE_Handle scanner_handle_to_sane(scanner_handle h);
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// methods ...
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public:
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SANE_Status get_devices(const SANE_Device*** device_list, SANE_Bool local_only);
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SANE_Status open_device(SANE_String_Const devicename, SANE_Handle* handle);
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SANE_Status close_device(SANE_Handle h);
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SANE_Status get_image_parameters(SANE_Handle handle, SANE_Parameters* params);
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SANE_Status start(SANE_Handle h, void* async_event);
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SANE_Status read(SANE_Handle h, void* buf, int* bytes);
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SANE_Status stop(SANE_Handle h);
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SANE_Option_Descriptor* get_option_descriptor(SANE_Handle h, const void* option);
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SANE_Status control_option(SANE_Handle h, const void* option, SANE_Action action, void* value, SANE_Int* after_do);
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// extension ...
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SANE_Status ex_io_control(SANE_Handle h, unsigned long code, void* data, unsigned* len);
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public:
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bool is_ready(void);
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};
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namespace local_utility
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{
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void free_memory(void* m);
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int sane_statu_2_scanner_err(int statu);
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}
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