#include <windows.h>
#include "resource.h"

#import "VGCoreAuto.tlb" \
rename("GetCommandLine", "VGGetCommandLine") \
rename("CopyFile", "VGCore") \
rename("FindWindow", "VGFindWindow")

static HINSTANCE g_hResource = NULL;

BOOL APIENTRY DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    if (fdwReason == DLL_PROCESS_ATTACH) {
        g_hResource = (HINSTANCE)hinstDLL;
    }
    return TRUE;
}

class ToolsBoxPlugin : public VGCore::IVGAppPlugin
{
private:

    volatile ULONG m_ulRefCount;
    long m_lCookie;

    static INT_PTR CALLBACK DlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
    void OpenToolsBox();


public:
    ToolsBoxPlugin();
    VGCore::IVGApplication* m_pApp;

// IUnknown
public:
    STDMETHOD(QueryInterface)(REFIID riid, void** ppvObject);
    STDMETHOD_(ULONG, AddRef)(void) { return ++m_ulRefCount; }
    STDMETHOD_(ULONG, Release)(void)
    {
        ULONG ulCount = --m_ulRefCount;
        if (ulCount == 0) {
            delete this;
        }
        return ulCount;
    }

// IDispatch
public:
    STDMETHOD(GetTypeInfoCount)(UINT* pctinfo) { return E_NOTIMPL; }
    STDMETHOD(GetTypeInfo)(UINT iTInfo, LCID lcid, ITypeInfo** ppTInfo) { return E_NOTIMPL; }
    STDMETHOD(GetIDsOfNames)(REFIID riid, LPOLESTR* rgszNames, UINT cNames, LCID lcid, DISPID* rgDispId) { return E_NOTIMPL; }
    STDMETHOD(Invoke)(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS* pDispParams, VARIANT* pVarResult, EXCEPINFO* pExcepInfo, UINT* puArgErr);

// IVGAppPlugin
public:
    STDMETHOD(raw_OnLoad)(VGCore::IVGApplication* Application);
    STDMETHOD(raw_StartSession)();
    STDMETHOD(raw_StopSession)();
    STDMETHOD(raw_OnUnload)();

};

ToolsBoxPlugin::ToolsBoxPlugin()
{
    m_pApp = NULL;
    m_lCookie = 0;
    m_ulRefCount = 1;
}

STDMETHODIMP ToolsBoxPlugin::QueryInterface(REFIID riid, void** ppvObject)
{
    HRESULT hr = S_OK;
    m_ulRefCount++;
    if (riid == IID_IUnknown) {
        *ppvObject = (IUnknown*)this;
    } else if (riid == IID_IDispatch) {
        *ppvObject = (IDispatch*)this;
    } else if (riid == __uuidof(VGCore::IVGAppPlugin)) {
        *ppvObject = (VGCore::IVGAppPlugin*)this;
    } else {
        m_ulRefCount--;
        hr = E_NOINTERFACE;
    }
    return hr;
}

STDMETHODIMP ToolsBoxPlugin::Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS* pDispParams, VARIANT* pVarResult, EXCEPINFO* pExcepInfo, UINT* puArgErr)
{
    switch (dispIdMember) {

    case 0x0014: // DISPID_APP_ONPLUGINCMD
        if (pDispParams != NULL && pDispParams->cArgs == 1) {
            _bstr_t strCmd(pDispParams->rgvarg[0].bstrVal);
            if (strCmd == _bstr_t("OpenToolsBox")) {
          //   MessageBox(NULL, _bstr_t("OpenToolsBox"), _bstr_t("OpenToolsBox"), MB_ICONSTOP);
                OpenToolsBox();
            }
        }
        break;

    case 0x0015: // DISPID_APP_ONPLUGINCMDSTATE
        if (pDispParams != NULL && pDispParams->cArgs == 3) {
            _bstr_t strCmd(pDispParams->rgvarg[2].bstrVal);
            if (strCmd == _bstr_t("OpenToolsBox")) {
                *pDispParams->rgvarg[1].pboolVal = VARIANT_TRUE;
            }
        }
        break;
    }
    return S_OK;
}

STDMETHODIMP ToolsBoxPlugin::raw_OnLoad(VGCore::IVGApplication* Application)
{
    m_pApp = Application;
    if (m_pApp) {
        m_pApp->AddRef();
    }
    return S_OK;
}

STDMETHODIMP ToolsBoxPlugin::raw_StartSession()
{
    try {
        m_pApp->AddPluginCommand(_bstr_t("OpenToolsBox"), _bstr_t("Tools Box"), _bstr_t("打开工具窗口"));

        VGCore::ICUIControlPtr ctl = m_pApp->CommandBars->Item[_bstr_t("Standard")]->Controls->AddCustomButton(VGCore::cdrCmdCategoryPlugins, _bstr_t("OpenToolsBox"), 10, VARIANT_FALSE);
        ctl->SetIcon2(_bstr_t("guid://d2fdc0d9-09f8-4948-944c-4297395c05b7"));
        m_lCookie = m_pApp->AdviseEvents(this);
    } catch (_com_error &e) {
        MessageBox(NULL, e.Description(), _bstr_t("Error"), MB_ICONSTOP);
    }
    return S_OK;
}

STDMETHODIMP ToolsBoxPlugin::raw_StopSession()
{
    try {
        m_pApp->UnadviseEvents(m_lCookie);
        m_pApp->RemovePluginCommand(_bstr_t("OpenToolsBox"));
    } catch (_com_error &e) {
        MessageBox(NULL, e.Description(), _bstr_t("Error"), MB_ICONSTOP);
    }
    return S_OK;
}

STDMETHODIMP ToolsBoxPlugin::raw_OnUnload()
{
    if (m_pApp) {
        m_pApp->Release();
        m_pApp = NULL;
    }
    return S_OK;
}


void ToolsBoxPlugin::OpenToolsBox()
{
    // MessageBox(NULL, _bstr_t("打开工具箱"), _bstr_t("打开工具箱"), MB_ICONSTOP);
    try {
        m_pApp->StartupMode = VGCore::cdrStartupDoNothing;
        // To avoid 64 bit portability warning, store the long handle value into an INT_PTR
        // before casting it to HWND:

        INT_PTR nHandle = m_pApp->AppWindow->Handle;
        HWND hAppWnd = reinterpret_cast<HWND>(nHandle);
        INT_PTR nRet = DialogBoxParam(g_hResource, MAKEINTRESOURCE(IDD_TOOLS_BOX), hAppWnd, DlgProc, (LPARAM)this);

        switch (nRet) {
        case IDC_NEWDOC:
            m_pApp->CreateDocument();
            break;

        case IDC_LASTDOC:
            if (m_pApp->RecentFiles->Count > 0) {
                m_pApp->OpenDocument(m_pApp->RecentFiles->Item[1]->FullName, 0);
            } else {
                MessageBox(NULL, "No documents were editied yet.", "Error", MB_ICONSTOP);
            }
            break;

        case IDC_CLEAR_FILL:
            m_pApp->ActiveSelection->Fill->ApplyNoFill();
            break;

        case IDC_SR_FLIP: {
                auto sr = m_pApp->ActiveSelectionRange;
                for (auto i = 0; i != sr->Count; i++)
                    // CorelDRAW Shapes 物件 Item 编号从1开始
                    sr->Shapes->Item[i+1]->Flip(VGCore::cdrFlipHorizontal);
            }
            break;

        }
    } catch (_com_error &e) {
        MessageBox(NULL, e.Description(), "Error", MB_ICONSTOP);
    }
}


INT_PTR CALLBACK ToolsBoxPlugin::DlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    if (uMsg == WM_COMMAND) {
        switch (LOWORD(wParam)) {
        case IDC_NEWDOC:
            EndDialog(hDlg, IDC_NEWDOC);
            break;

        case IDC_LASTDOC:
            EndDialog(hDlg, IDC_LASTDOC);
            break;

        case IDC_CLEAR_FILL:
            EndDialog(hDlg, IDC_CLEAR_FILL);
            break;

        case IDC_SR_FLIP:
            EndDialog(hDlg, IDC_SR_FLIP);
            break;

        case IDOK:
        case IDCANCEL:
            EndDialog(hDlg, 0);
            break;
        }
    } else if (uMsg == WM_INITDIALOG) {
        return 1;
    }
    return 0;
}

extern "C" __declspec(dllexport) DWORD APIENTRY AttachPlugin(VGCore::IVGAppPlugin** ppIPlugin)
{
    *ppIPlugin = new ToolsBoxPlugin;
    return 0x100;
}