77 lines
1.5 KiB
C++
77 lines
1.5 KiB
C++
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#include "pch.h"
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#include "ui.h"
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#include "huagaotwain.h" // for sane_invoker::load_dll
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twain_ui::twain_ui(const wchar_t* path) : path_(path), dll_(NULL)
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, show_(NULL), hide_(NULL), event_(NULL), hui_(NULL)
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, good_(false)
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{
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good_ = load();
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}
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twain_ui::~twain_ui()
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{
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if (hui_ && hide_)
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hide_(hui_);
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if (dll_)
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FreeLibrary(dll_);
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}
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bool twain_ui::load()
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{
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std::wstring dll(path_ + L"\\huagaoui.dll");
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sane_invoker::load_dll(dll.c_str(), &dll_);
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if (!dll_)
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return false;
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show_ = (ui_show_api)GetProcAddress(dll_, "ui_show");
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hide_ = (ui_hide_api)GetProcAddress(dll_, "ui_hide");
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event_ = (handle_event_api)GetProcAddress(dll_, "handle_event");
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return show_ && hide_ && event_;
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}
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void twain_ui::show_main_ui(LPSANEAPI api)
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{
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type_ = UITYPE::UI_MAIN;
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if (show_)
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hui_ = show_(UITYPE::UI_MAIN, api);
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}
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void twain_ui::show_setting_ui(LPSANEAPI api, bool with_scan)
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{
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if (show_)
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{
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type_ = with_scan ? UITYPE::UI_SETTING_AND_SCAN : UITYPE::UI_SETTING;
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hui_ = show_(type_, api);
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}
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}
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void twain_ui::show_progress_ui(LPSANEAPI api)
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{
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type_ = UITYPE::UI_PROGRESS;
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if (show_)
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hui_ = show_(UITYPE::UI_PROGRESS, api);
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}
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void twain_ui::hide_ui(void)
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{
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if (hui_ && hide_)
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hide_(hui_);
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hui_ = NULL;
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}
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void twain_ui::handle_sane_event(int sane_ev, void* data, unsigned int* len)
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{
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if (event_)
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event_((SANE_Event)sane_ev, data, len);
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}
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bool twain_ui::is_ok(void)
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{
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return good_;
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}
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bool twain_ui::is_progress_ui_showing(void)
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{
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return type_ == UITYPE::UI_PROGRESS;
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}
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