自学教程：C++ CenterOnParent函数代码示例

	GeneratePalettesDialog(wxWindow* parent)		: wxDialog(parent, -1, "Generate Palettes", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER)	{		// Set dialog icon		wxIcon icon;		icon.CopyFromBitmap(Icons::getIcon(Icons::ENTRY, "palette"));		SetIcon(icon);		// Setup main sizer		wxBoxSizer* msizer = new wxBoxSizer(wxVERTICAL);		SetSizer(msizer);		wxBoxSizer* sizer = new wxBoxSizer(wxVERTICAL);		msizer->Add(sizer, 1, wxEXPAND|wxALL, 6);		// Add buttons		rb_doom = new wxRadioButton(this, -1, "Doom (14 Palettes)", wxDefaultPosition, wxDefaultSize, wxRB_GROUP);		sizer->Add(rb_doom, 0, wxEXPAND|wxALL, 4);		rb_hexen = new wxRadioButton(this, -1, "Hexen (28 Palettes)");		sizer->Add(rb_hexen, 0, wxEXPAND|wxALL, 4);		sizer->Add(CreateButtonSizer(wxOK|wxCANCEL), 0, wxEXPAND|wxBOTTOM|wxTOP, 4);		// Init layout		Layout();		// Setup dialog size		SetInitialSize(wxSize(-1, -1));		SetMinSize(GetSize());		CenterOnParent();	}

SetupWizardDialog::SetupWizardDialog(wxWindow* parent) : wxDialog(parent, -1, "First Time SLADE Setup", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER){	// Create pages	pages.push_back(new TempFolderWizardPage(this));	pages.push_back(new BaseResourceWizardPage(this));	pages.push_back(new NodeBuildersWizardPage(this));	current_page = 0;	// Hide all pages	for (unsigned a = 0; a < pages.size(); a++)		pages[a]->Show(false);	// Init layout	setupLayout();	// Set icon	wxIcon icon;	icon.CopyFromBitmap(getIcon("i_logo"));	SetIcon(icon);	// Setup layout	SetInitialSize(wxSize(600, 500));	Layout();	Fit();	SetMinSize(GetBestSize());	CenterOnParent();	showPage(0);	// Bind events	btn_next->Bind(wxEVT_BUTTON, &SetupWizardDialog::onBtnNext, this);	btn_prev->Bind(wxEVT_BUTTON, &SetupWizardDialog::onBtnPrev, this);}

WebToolsSettings::WebToolsSettings(wxWindow* parent)    : WebToolsSettingsBase(parent)    , m_modified(false){    ::wxPGPropertyBooleanUseCheckbox(m_pgMgr->GetGrid());    {        WebToolsConfig config;        config.Load();        m_pgPropEnableJSCC->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSEnableCC));        m_pgPropLogging->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSEnableVerboseLogging));        m_pgPropBrowser->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSLibraryBrowser));        m_pgPropChai->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSLibraryChai));        m_pgPropEcma5->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSLibraryEcma5));        m_pgPropEcma6->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSLibraryEcma6));        m_pgPropJQuery->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSLibraryJQuery));        m_pgPropUnderscore->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSLibraryUnderscore));        m_pgPropAngular->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSPluginAngular));        m_pgPropNode->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSPluginNode));        m_pgPropStrings->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSPluginStrings));        m_pgPropQML->SetValue(config.HasJavaScriptFlag(WebToolsConfig::kJSPluginQML));    }    CenterOnParent();    SetName("WebToolsSettings");    WindowAttrManager::Load(this);}

void pgDialog::RestorePosition(int defaultX, int defaultY, int defaultW, int defaultH, int minW, int minH){	if (minW == -1)		minW = GetSize().GetX();	if (minH == -1)		minH = GetSize().GetY();	wxPoint pos(settings->Read(dlgName, wxPoint(defaultX, defaultY)));	wxSize size;	if ((this->GetWindowStyle() & wxRESIZE_BORDER) == wxRESIZE_BORDER)	{		if (defaultW < 0)			size = settings->Read(dlgName, GetSize());		else			size = settings->Read(dlgName, wxSize(defaultW, defaultH));	}	else	{		size = GetSize();	}	bool posDefault = (pos.x == -1 && pos.y == -1);	CheckOnScreen(this, pos, size, minW, minH);	SetSize(pos.x, pos.y, size.x, size.y);	if (posDefault)		CenterOnParent();}

DialogVideoDetails::DialogVideoDetails(agi::Context *c): wxDialog(c->parent , -1, _("Video Details")){	auto width = c->videoController->GetWidth();	auto height = c->videoController->GetHeight();	auto framecount = c->videoController->GetLength();	auto fps = c->videoController->FPS();	boost::rational<int> ar(width, height);	auto fg = new wxFlexGridSizer(2, 5, 10);	auto make_field = [&](wxString const& name, wxString const& value) {		fg->Add(new wxStaticText(this, -1, name), 0, wxALIGN_CENTRE_VERTICAL);		fg->Add(new wxTextCtrl(this, -1, value, wxDefaultPosition, wxSize(300,-1), wxTE_READONLY), 0, wxALIGN_CENTRE_VERTICAL | wxEXPAND);	};	make_field(_("File name:"), c->videoController->GetVideoName().wstring());	make_field(_("FPS:"), wxString::Format("%.3f", fps.FPS()));	make_field(_("Resolution:"), wxString::Format("%dx%d (%d:%d)", width, height, ar.numerator(), ar.denominator()));	make_field(_("Length:"), wxString::Format(_("%d frames (%s)"), framecount, to_wx(AssTime(fps.TimeAtFrame(framecount - 1)).GetAssFormated(true))));	make_field(_("Decoder:"), to_wx(c->videoController->GetProvider()->GetDecoderName()));	wxStaticBoxSizer *video_sizer = new wxStaticBoxSizer(wxVERTICAL, this, _("Video"));	video_sizer->Add(fg);	auto main_sizer = new wxBoxSizer(wxVERTICAL);	main_sizer->Add(video_sizer, 1, wxALL|wxEXPAND, 5);	main_sizer->Add(CreateSeparatedButtonSizer(wxOK), 0, wxALL|wxEXPAND, 5);	SetSizerAndFit(main_sizer);	CenterOnParent();}

bool CConditionalDialog::Run(){	wxString dialogs = COptions::Get()->GetOption(OPTION_ONETIME_DIALOGS);	if (dialogs.Len() > (unsigned int)m_type && dialogs[m_type] == '1')		return true;	Fit();	wxGetApp().GetWrapEngine()->WrapRecursive(this, 3);	CenterOnParent();	int id = ShowModal();	auto cb = dynamic_cast<wxCheckBox*>(FindWindow(wxID_HIGHEST + 1));	if (cb && cb->GetValue()) {		while (dialogs.Len() <= (unsigned int)m_type)			dialogs += _T("0");		dialogs[m_type] = '1';		COptions::Get()->SetOption(OPTION_ONETIME_DIALOGS, dialogs.ToStdWstring());	}	if (id == wxID_OK || id == wxID_YES)		return true;	return false;}

/* ShowItemDialog::ShowItemDialog * ShowItemDialog class constructor *******************************************************************/ShowItemDialog::ShowItemDialog(wxWindow* parent) : wxDialog(parent, -1, "Show Item"){	// Setup sizer	wxBoxSizer* sizer = new wxBoxSizer(wxVERTICAL);	SetSizer(sizer);	wxGridBagSizer*	gb_sizer = new wxGridBagSizer(4, 4);	sizer->Add(gb_sizer, 1, wxEXPAND | wxLEFT | wxRIGHT | wxTOP, 10);	// Object type	string types[] = { "Vertex", "Line", "Side", "Sector", "Thing" };	gb_sizer->Add(new wxStaticText(this, -1, "Type:"), wxGBPosition(0, 0), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);	choice_type = new wxChoice(this, -1, wxDefaultPosition, wxDefaultSize, 5, types);	gb_sizer->Add(choice_type, wxGBPosition(0, 1), wxDefaultSpan, wxEXPAND);	// Index	gb_sizer->Add(new wxStaticText(this, -1, "Index:"), wxGBPosition(1, 0), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);	text_index = new wxTextCtrl(this, -1, "", wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);	gb_sizer->Add(text_index, wxGBPosition(1, 1), wxDefaultSpan, wxEXPAND);	// Dialog buttons	sizer->AddSpacer(4);	sizer->Add(CreateButtonSizer(wxOK | wxCANCEL), 0, wxEXPAND | wxLEFT | wxRIGHT | wxBOTTOM, 10);	// Init layout	gb_sizer->AddGrowableCol(1, 1);	SetInitialSize(wxSize(300, -1));	CenterOnParent();	Layout();	text_index->SetFocus();	text_index->SetFocusFromKbd();}

nkIODialog::nkIODialog(wxWindow* parent, 	   wxString unasEtiquetas[100],	   int un_tamanio,	   wxWindowID id, 	   const wxString& title, 	   const wxPoint& pos, 	   const wxSize& size, 	   long style, 	   const wxString& name):	wxDialog(parent, id, title, pos, size, style, name){	this->prv_tamanio = un_tamanio;	for (int i=0; i<prv_tamanio; i++){		new wxStaticText(this,			-1,			unasEtiquetas[i],			wxPoint(20,20*(i+1)));		prv_wxTCValores[i] = new wxTextCtrl(this,			-1,			wxT("0"),			wxPoint(200,20*(i+1)));	}	new wxButton(this, wxID_OK, _("OK"),wxPoint(40,prv_tamanio*20+40));		new wxButton(this, wxID_CANCEL, _("Cancel"),wxPoint(170,prv_tamanio*20+40));	CenterOnParent();}

DialogAttachments::DialogAttachments(wxWindow *parent, AssFile *ass): wxDialog(parent,-1,_("Attachment List"),wxDefaultPosition,wxDefaultSize,wxDEFAULT_DIALOG_STYLE), ass(ass){	SetIcon(GETICON(attach_button_16));	listView = new wxListView(this,ATTACHMENT_LIST,wxDefaultPosition,wxSize(500,200));	UpdateList();	// Buttons	extractButton = new wxButton(this,BUTTON_EXTRACT,_("E&xtract"));	deleteButton = new wxButton(this,BUTTON_DELETE,_("&Delete"));	extractButton->Enable(false);	deleteButton->Enable(false);	// Buttons sizer	wxSizer *buttonSizer = new wxBoxSizer(wxHORIZONTAL);	buttonSizer->Add(new wxButton(this,BUTTON_ATTACH_FONT,_("Attach &Font")),1,0,0);	buttonSizer->Add(new wxButton(this,BUTTON_ATTACH_GRAPHICS,_("Attach &Graphics")),1,0,0);	buttonSizer->Add(extractButton,1,0,0);	buttonSizer->Add(deleteButton,1,0,0);	buttonSizer->Add(new HelpButton(this,"Attachment Manager"),1,wxLEFT,5);	buttonSizer->Add(new wxButton(this,wxID_CANCEL,_("&Close")),1,0,0);	// Main sizer	wxSizer *mainSizer = new wxBoxSizer(wxVERTICAL);	mainSizer->Add(listView,1,wxTOP | wxLEFT | wxRIGHT | wxEXPAND,5);	mainSizer->Add(buttonSizer,0,wxALL | wxEXPAND,5);	SetSizerAndFit(mainSizer);	CenterOnParent();}

	GfxCropDialog(wxWindow* parent, ArchiveEntry* entry, Palette8bit* pal)		: wxDialog(parent, -1, "Crop", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER)	{		// Set dialog icon		wxIcon icon;		icon.CopyFromBitmap(Icons::getIcon(Icons::GENERAL, "settings"));		SetIcon(icon);		// Setup main sizer		wxBoxSizer* msizer = new wxBoxSizer(wxVERTICAL);		SetSizer(msizer);		wxBoxSizer* sizer = new wxBoxSizer(wxVERTICAL);		msizer->Add(sizer, 1, wxEXPAND|wxALL, 6);		// Add preview		canvas_preview = new CropCanvas(this);		sizer->Add(canvas_preview, 1, wxEXPAND|wxALL, 4);		// Add buttons		sizer->Add(CreateButtonSizer(wxOK|wxCANCEL), 0, wxEXPAND|wxBOTTOM, 4);		// Setup dialog size		SetInitialSize(wxSize(-1, -1));		SetMinSize(GetSize());		CenterOnParent();	}

void AeroQSPFrame::SetUserSize( const wxString &size ){	long width = 800, height = 600;	int pos = size.Index(wxT('x'));	if (pos > 0 && pos + 1 < size.Length())	{		size.Mid(0, pos).ToLong(&width);		size.Mid(pos + 1).ToLong(&height);	}	if (width > 0 && height > 0)	{		int curW, curH;		if (_isFullScreen)		{			_isFullScreen = false;			ShowFullScreen(false);		}		GetClientSize(&curW, &curH);		if (width != curW || height != curH)		{			SetClientSize(width, height);			CenterOnParent();		}	}}

bool CUpdateWizard::Load(){	if (!Create(m_parent, wxID_ANY, _("Check for updates"), wxNullBitmap, wxPoint(0, 0)))		return false;	wxSize minPageSize = GetPageAreaSizer()->GetMinSize();	for (int i = 1; i <= 5; i++)	{		wxWizardPageSimple* page = new wxWizardPageSimple();		bool res = wxXmlResource::Get()->LoadPanel(page, this, wxString::Format(_T("ID_CHECKFORUPDATE%d"), i));		if (!res)		{			delete page;			return false;		}		page->Show(false);		m_pages.push_back(page);	}	for (unsigned int i = 0; i < (m_pages.size() - 1); i++)		m_pages[i]->Chain(m_pages[i], m_pages[i + 1]);	GetPageAreaSizer()->Add(m_pages[0]);	std::vector<wxWindow*> windows;	for (unsigned int i = 0; i < m_pages.size(); i++)		windows.push_back(m_pages[i]);	wxGetApp().GetWrapEngine()->WrapRecursive(windows, 1.7, "UpdateCheck", wxSize(), minPageSize);	XRCCTRL(*this, "ID_CHECKINGTEXT", wxStaticText)->Hide();	XRCCTRL(*this, "ID_CHECKINGPROGRESS", wxGauge)->Hide();	XRCCTRL(*this, "ID_CHECKINGTEXTPROGRESS", wxStaticText)->Hide();	XRCCTRL(*this, "ID_CHECKINGPROGRESS", wxGauge)->SetRange(MAXCHECKPROGRESS);	GetPageAreaSizer()->Add(m_pages[1]);	m_pages[1]->SetPrev(0);	for (int i = 2; i <= 4; i++)	{		m_pages[i]->SetPrev(0);		m_pages[i]->SetNext(0);		GetPageAreaSizer()->Add(m_pages[i]);	}	if (COptions::Get()->GetOptionVal(OPTION_UPDATECHECK_CHECKBETA) != 0)		XRCCTRL(*this, "ID_CHECKBETA", wxCheckBox)->SetValue(1);	else		XRCCTRL(*this, "ID_CHECKBETA", wxCheckBox)->SetValue(0);	m_loaded = true;	CenterOnParent();	return true;}

        AboutDialog::AboutDialog(wxWindow* parent) :        wxDialog(parent, wxID_ANY, wxT("About")) {            IO::FileManager fileManager;                        wxBitmap icon(fileManager.appendPath(fileManager.resourceDirectory(), "Icon.png"), wxBITMAP_TYPE_PNG);                        wxStaticBitmap* appIcon = new wxStaticBitmap(this, wxID_ANY, icon);            wxStaticLine* appLine = new wxStaticLine(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLI_HORIZONTAL);            wxStaticText* appName = new wxStaticText(this, wxID_ANY, wxT("TrenchBroom"));            appName->SetFont(appName->GetFont().Larger().Larger().Larger().Larger().Bold());                        wxStaticText* appClaim = new wxStaticText(this, wxID_ANY, wxT("A Modern Level Editor for Quake"));                        wxString versionStr(wxT("Version "));            versionStr << VERSIONSTR;                        wxStaticText* version = new wxStaticText(this, wxID_ANY, versionStr);                        wxStaticText* devHeader = new wxStaticText(this, wxID_ANY, wxT("Development"));            devHeader->SetFont(devHeader->GetFont().Bold());            wxStaticText* devText = new wxStaticText(this, wxID_ANY, wxT("Kristian Duske"));                        wxStaticText* contrHeader = new wxStaticText(this, wxID_ANY, wxT("Contributions"));            contrHeader->SetFont(contrHeader->GetFont().Bold());            wxSizer* contrText = CreateTextSizer(wxT("Corey Jones (feedback, testing, documentation)/nAndré K
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