C++ wxListCtrl类代码示例

// Find the selection
long wxListCtrlGetSelection(wxListCtrl& listCtrl)
{
    long n = listCtrl.GetItemCount();
    long i;
    for (i = 0; i < n; i++)
    {
        if (listCtrl.GetItemState(i, wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED)
        {
            return i;
        }
    }
    return -1;
}

// Select the given item
void wxListCtrlSelectItem(wxListCtrl& listCtrl, long sel, bool deselectOthers)
{
    long n = listCtrl.GetItemCount();
    long i;
    if (deselectOthers)
    {
        for (i = 0; i < n; i++)
        {
            if (listCtrl.GetItemState(i, wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED)
            {
                listCtrl.SetItemState(i, wxLIST_STATE_SELECTED, 0);
            }
        }
    }
    listCtrl.SetItemState(sel, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
}

void RestoreItemData(wxListCtrl &list, const Item *items, long count)
{
    for (int ii = 0; ii < count; ++ii)
    {
        switch (items[ii].type)
        {
            case 0:
                list.SetItemData(ii, 1);
                break;
            case 1:
                list.SetItemData(ii, 0);
                break;
            case 2:
            default:
                list.SetItemData(ii, 2);
        }
    }
}

// Create a drag image for the given list control item
bool wxDragImage::Create(const wxListCtrl& listCtrl, long id)
{
    if ( m_hImageList )
        ImageList_Destroy(GetHimageList());
    POINT pt;
    pt.x = 0; pt.y = 0;
    m_hImageList = (WXHIMAGELIST) ListView_CreateDragImage((HWND) listCtrl.GetHWND(), id, & pt);
    return true;
}

// Find the text of the list control item at the given column
wxString wxListCtrlGetItemTextColumn(wxListCtrl& listCtrl, long item, int col)
{
    wxListItem listItem;
    listItem.m_mask = wxLIST_MASK_TEXT;
    listItem.m_itemId = item;
    listItem.m_col = col;

    if (listCtrl.GetItem(listItem))
        return listItem.m_text;
    else
        return wxEmptyString;
}

wxPanel* SjViewSettingsPage::CreateSkinPage(wxWindow* parent)
{
	// save given objects
	m_skinEnumerator        = NULL;
	m_skinChangeFromMe      = 0;
	m_loadSkinsMenuButton   = NULL;

	// init dialog
	wxPanel* page = new wxPanel(parent, -1);
	wxSizer* sizer1 = new wxBoxSizer(wxVERTICAL);
	page->SetSizer(sizer1);

	sizer1->Add(SJ_DLG_SPACE, SJ_DLG_SPACE); // some space

	wxStaticText* staticText = new wxStaticText(page, -1,
	        wxString::Format(_("With different skins you can change the \"look and feel\" of %s. Just\nselect the skin to use from the list above. You'll find more skins on the web."), SJ_PROGRAM_NAME));
	sizer1->Add(staticText,
	            0, wxALL, SJ_DLG_SPACE);

	/* add list control
	 */
	m_listCtrl = new wxListCtrl(page, IDC_SKINLIST, wxDefaultPosition, wxSize(200, 100),
	                            wxLC_REPORT | wxLC_NO_HEADER | wxLC_SINGLE_SEL | wxSUNKEN_BORDER);
	m_listCtrl->SetImageList(g_tools->GetIconlist(FALSE), wxIMAGE_LIST_SMALL);
	//m_listCtrl->SetImageList(g_tools->GetIconlist(TRUE), wxIMAGE_LIST_NORMAL);
	m_listCtrl->InsertColumn(0, _("Name"));
	sizer1->Add(m_listCtrl, 1, wxGROW|wxALL, SJ_DLG_SPACE);

	wxSizer* sizer3 = new wxBoxSizer(wxHORIZONTAL);
	sizer1->Add(sizer3, 0, wxLEFT|wxRIGHT|wxBOTTOM, SJ_DLG_SPACE);

	m_loadSkinsMenuButton = new wxButton(page, IDC_LOADSKINSMENUBUTTON, _("Options")+wxString(SJ_BUTTON_MENU_ARROW));
	sizer3->Add(m_loadSkinsMenuButton, 0, wxRIGHT, SJ_DLG_SPACE);

	// init data
	m_orgSkinPath = g_mainFrame->GetSkinUrl();
	UpdateSkinList(m_orgSkinPath);

	return page;
}

wxPanel* SjMyMusicConfigPage::CreatePage(wxWindow* parent)
{
	wxPanel* page = new wxPanel(parent, -1);
	wxSizer* sizer1 = new wxBoxSizer(wxVERTICAL);
	page->SetSizer(sizer1);

	sizer1->Add(1, SJ_DLG_SPACE); // some space

	wxStaticText* staticText = new wxStaticText(page, -1, _("Read music-files from the following folders and sources:"));
	sizer1->Add(staticText, 0, wxALL, SJ_DLG_SPACE);

	m_listCtrl = new wxListCtrl(page, IDC_IDXLIST, wxPoint(-1, -1), wxSize(200, 80),
	                            wxLC_REPORT | wxLC_NO_HEADER | wxLC_SINGLE_SEL | wxSUNKEN_BORDER
	                           );
	m_listCtrl->SetImageList(g_tools->GetIconlist(FALSE), wxIMAGE_LIST_SMALL);
	//m_listCtrl->SetImageList(g_tools->GetIconlist(TRUE), wxIMAGE_LIST_NORMAL);
	m_listCtrl->InsertColumn(0, _("Read music-files from the following sources:"));
	sizer1->Add(m_listCtrl, 1, wxGROW|wxLEFT|wxRIGHT|wxTOP, SJ_DLG_SPACE);

	wxBoxSizer* buttonSizer = new wxBoxSizer(wxHORIZONTAL);
	sizer1->Add(buttonSizer, 0, wxRIGHT|wxGROW, SJ_DLG_SPACE);

	m_addButton = new wxButton(page, IDC_IDXADDSOURCES, _("Add source")+wxString(SJ_BUTTON_MENU_ARROW), wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT);
	buttonSizer->Add(m_addButton, 0, wxLEFT|wxTOP|wxBOTTOM, SJ_DLG_SPACE);

	m_removeButton = new wxButton(page, IDC_IDXDELSOURCE, _("Remove source"), wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT);
	buttonSizer->Add(m_removeButton, 0, wxLEFT|wxTOP|wxBOTTOM, SJ_DLG_SPACE);

	m_configMenuButton = new wxButton(page, IDC_IDXCONFIGSOURCEMENU, _("Options")+wxString(SJ_BUTTON_MENU_ARROW), wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT);
	buttonSizer->Add(m_configMenuButton, 0, wxLEFT|wxTOP|wxBOTTOM, SJ_DLG_SPACE);

	m_updateButton = new wxButton(page, IDC_IDXUPDATEMENU, wxString::Format(" %s%s ", _("Update music library"), SJ_BUTTON_MENU_ARROW), wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT);
	buttonSizer->Add(m_updateButton, 0, wxALL, SJ_DLG_SPACE);

	return page;
}

void SetItemType(Item &item, wxListCtrl &list, long index, long &searchIndex)
{
    switch (list.GetItemData(index))
    {
        case 0:
            item.type = 1;
            break;
        case 1:
            item.type = 0;
            ++searchIndex;
            break;
        case 2:
        default:
            item.type = 2;
    }
}

// Create a drag image for the given list control item
bool wxDragImage::Create(const wxListCtrl& listCtrl, long id)
{
    if ( m_hImageList )
        ImageList_Destroy(GetHimageList());
    POINT pt;
    pt.x =
    pt.y = 0;
    m_hImageList = (WXHIMAGELIST)
        ListView_CreateDragImage(GetHwndOf(&listCtrl), id, &pt);

    if ( !m_hImageList )
    {
        // as for wxTreeCtrl, fall back on dragging just the item text
        return Create(listCtrl.GetItemText(id));
    }

    return true;
}

// Find which column the cursor is on
int wxListCtrlFindColumn(wxListCtrl& listCtrl, int noCols, int x)
{
    int col = 0;
    
    // Find which column we're on
    int width = 0;
    int i;
    for (i = 0; i < noCols; i++)
    {
        width += listCtrl.GetColumnWidth(i);
        if (x <= width)
        {
            col = i;
            break;
        }
    }
    return col;
}

void ConvertViewCtrlToTrackData(const wxListCtrl &listctrl, const std::map< wxString, long > &mapping, std::vector<lfmt::TrackData> &tracklist, wxDateTime offset)
{
    auto row_count = listctrl.GetItemCount();

    if (row_count < 1)
        return;

    // grab column indices from string-long-map which we have just for purpose of dynamic indices (ie. changing column order is easy)
    auto idx_artist = mapping.find("Artist")->second;
    auto idx_tname  = mapping.find("Trackname")->second;
    auto idx_album  = mapping.find("Album")->second;
    auto idx_time  = mapping.find("Time")->second;

    wxDateTime last_time = offset;

    // last track on the list is the most recentry track that was listened to;
    // moving up the list successive tracks will get earlier times
    for (int row = row_count-1; row >= 0; --row)
    {
        lfmt::TrackData td;

        // is there a better way of getting the info out of the listviewctrl?
        // it's questionable if I would have gotten it without the wxforum :(
        wxListItem item;
        item.SetId(row);
        item.SetMask(wxLIST_MASK_TEXT);

        // "unrolled loop" for all columns
        item.SetColumn(idx_artist);
        listctrl.GetItem(item);
        td.artist = item.GetText();

        item.SetColumn(idx_tname);
        listctrl.GetItem(item);
        td.trackname = item.GetText();

        item.SetColumn(idx_album);
        listctrl.GetItem(item);
        td.album = item.GetText();

        td.timestamp = last_time.GetTicks(); // set time *before* calculating the descendant
        item.SetColumn(idx_time);
        listctrl.GetItem(item);
        {
            // now calculate 'last_time' offset according to playtime of the current track
            // defaults to 3 minutes if we don't know the track's length
            wxArrayString time_str = wxStringTokenize(item.GetText(), ":");
            long minutes, seconds;
            bool success = true;
            success &= time_str[0].ToLong(&minutes);
            success &= time_str[1].ToLong(&seconds);

            if (success)
                last_time -= wxTimeSpan(0, minutes, seconds);
            else
            {
                wxLogWarning("Could not parse timespan " + item.GetText() + ". Assuming track length of 3 minutes.");
                last_time -= wxTimeSpan(0, 3, 0);
            }
        }

        tracklist.push_back(td);

        wxLogDebug("Converted track " + td.ToString() + " from row %d.", row);
    }
}

// Create a drag image for the given list control item
bool wxGenericDragImage::Create(const wxListCtrl& listCtrl, long id)
{
    wxString str = listCtrl.GetItemText(id);
    return Create(str);
}

void getFleetData(wxListCtrl& listCtrl)
{
	DataPoll poll;

	string data = poll.getFleetData(1, LogInHandler::mUsername, LogInHandler::mPassword);
	if(!poll.getState())
	{
		return;
	}

	istringstream input(data);

	jsonxx::Object o;

	assert(jsonxx::Object::parse(input, o));
	assert(o.has<jsonxx::Array>("data"));

	long long int profit = 0;
	double distance = 0,
	       velocity = 0;
	stringstream sstream;

	string finalString;

	//wxString tempHabitable;

	for(int i = 0; i < o.get<jsonxx::Array>("data").size(); ++i)
	{
		profit = o.get<jsonxx::Array>("data").get<jsonxx::Object>(i).get<jsonxx::number>("profit");
		velocity = o.get<jsonxx::Array>("data").get<jsonxx::Object>(i).get<jsonxx::number>("velocity");
		distance = o.get<jsonxx::Array>("data").get<jsonxx::Object>(i).get<jsonxx::number>("distance");
		cout << profit;
		cout << endl;
		int minutesToTarget = floor(distance / velocity);
		if(velocity == 0)
		{
			minutesToTarget = 0;
		}
		wxString sProfit;
		sProfit << profit;
		//wxString sProfit(wxT("4"), wxConvUTF8);
		wxString sVelocity;
		sVelocity << velocity;
		wxString sDistance;
		sDistance << distance;
		wxString sMinToTarget;
		sMinToTarget << minutesToTarget;

		wxString tempName(o.get<jsonxx::Array>("data").get<jsonxx::Object>(i).get<string>("name").c_str(), wxConvUTF8);

		wxString tempStatus(o.get<jsonxx::Array>("data").get<jsonxx::Object>(i).get<string>("status").c_str(), wxConvUTF8);

		//bool y = o.get<jsonxx::Array>("data").get<jsonxx::Object>(i).get<bool>("hasHabitable");

		//if(y)
		//	tempHabitable = wxString("Yes");
		//else
		//	tempHabitable = wxString("No");

		wxListItem item;

		item.SetId(i);

		long index = listCtrl.InsertItem(item);

		listCtrl.SetItem(index, 0, tempName);
		listCtrl.SetItem(index, 1, tempStatus);
		listCtrl.SetItem(index, 2, sProfit);
		listCtrl.SetItem(index, 3, sDistance);
		listCtrl.SetItem(index, 4, sVelocity);
		listCtrl.SetItem(index, 5, sMinToTarget);

		//listCtrl.SetItem(index, 2, tempHabitable);

		sstream.str("");
	}
}

void SjViewSettingsPage::OnSize(wxSizeEvent& event)
{
	wxSize size = m_listCtrl->GetClientSize();
	m_listCtrl->SetColumnWidth(0, size.x-8);
	SjDialog::EnsureSelListCtrlItemVisible(m_listCtrl);

	event.Skip(); // forward event to the next handler
}

SjSettingsSourceItem* SjMyMusicConfigPage::GetSelFromDialog()
{
	long i = SjDialog::GetSelListCtrlItem(m_listCtrl);
	if( i >= 0 )
	{
		return (SjSettingsSourceItem*)m_listCtrl->GetItemData(i);
	}

	return NULL;
}