xmlres.h

linux下的电骡下载程序源码 包含emule协议的应用。

/////////////////////////////////////////////////////////////////////////////
// Name:        xmlres.h
// Purpose:     XML resources
// Author:      Vaclav Slavik
// Created:     2000/03/05
// RCS-ID:      $Id: xmlres.h,v 1.2 2004/09/28 09:04:12 HopeSeekr Exp $
// Copyright:   (c) 2000 Vaclav Slavik
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_XMLRES_H_
#define _WX_XMLRES_H_

#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "xmlres.h"
#endif

#include <list>                             // Needed for std::list
#include <vector>                           // Needed for std::vector

#include "wx/defs.h"
#include "wx/string.h"
#include "wx/dynarray.h"
#include "wx/datetime.h"
#include "wx/gdicmn.h"
#include "wx/filesys.h"
#include "wx/bitmap.h"
#include "wx/icon.h"
#include "wx/artprov.h"

#include "wx/xrc/xml.h"

class wxMenu;
class wxMenuBar;
class wxDialog;
class wxPanel;
class wxWindow;
class wxFrame;
class wxToolBar;

class wxXmlResourceHandler;
class wxXmlSubclassFactory;
typedef std::list<wxXmlSubclassFactory *> wxXmlSubclassFactoriesList;
class wxXmlResourceModule;


// These macros indicate current version of XML resources (this information is
// encoded in root node of XRC file as "version" property).
//
// Rules for increasing version number:
//   - change it only if you made incompatible change to the format. Addition of new
//     attribute to control handler is _not_ incompatible change, because older
//     versions of the library may ignore it.
//   - if you change version number, follow these steps:
//       - set major, minor and release numbers to respective version numbers of
//         the wxWindows library (see wx/version.h)
//       - reset revision to 0 unless the first three are same as before, in which
//         case you should increase revision by one
#define WX_XMLRES_CURRENT_VERSION_MAJOR            2
#define WX_XMLRES_CURRENT_VERSION_MINOR            3
#define WX_XMLRES_CURRENT_VERSION_RELEASE          0
#define WX_XMLRES_CURRENT_VERSION_REVISION         1
#define WX_XMLRES_CURRENT_VERSION_STRING    wxT("2.3.0.1")

#define WX_XMLRES_CURRENT_VERSION \
                (WX_XMLRES_CURRENT_VERSION_MAJOR * 256*256*256 + \
                 WX_XMLRES_CURRENT_VERSION_MINOR * 256*256 + \
                 WX_XMLRES_CURRENT_VERSION_RELEASE * 256 + \
                 WX_XMLRES_CURRENT_VERSION_REVISION)

class wxXmlResourceDataRecord
{
public:
    wxXmlResourceDataRecord() : Doc(NULL), Time(wxDateTime::Now()) {}
    ~wxXmlResourceDataRecord() {delete Doc;}

    wxString File;
    wxXmlDocument *Doc;
    wxDateTime Time;
};


enum wxXmlResourceFlags
{
    wxXRC_USE_LOCALE     = 1,
    wxXRC_NO_SUBCLASSING = 2
};

// This class holds XML resources from one or more .xml files
// (or derived forms, either binary or zipped -- see manual for
// details).
class wxXmlResource : public wxObject
{
public:
    // Constructor.
    // Flags: wxXRC_USE_LOCALE
    //              translatable strings will be translated via _()
    //        wxXRC_NO_SUBCLASSING
    //              subclass property of object nodes will be ignored
    //              (useful for previews in XRC editors)
    wxXmlResource();
    wxXmlResource(int flags);

    // Constructor.
    // Flags: wxXRC_USE_LOCALE
    //              translatable strings will be translated via _()
    //        wxXRC_NO_SUBCLASSING
    //              subclass property of object nodes will be ignored
    //              (useful for previews in XRC editors)
    wxXmlResource(const wxString& filemask, int flags = wxXRC_USE_LOCALE);

    // Destructor.
    ~wxXmlResource();

    // Loads resources from XML files that match given filemask.
    // This method understands VFS (see filesys.h).
    bool Load(const wxString& filemask);

    // Initialize handlers for all supported controls/windows. This will
    // make the executable quite big because it forces linking against
    // most of the wxWindows library.
    void InitAllHandlers();

    // Initialize only a specific handler (or custom handler). Convention says
    // that handler name is equal to the control's name plus 'XmlHandler', for example
    // wxTextCtrlXmlHandler, wxHtmlWindowXmlHandler. The XML resource compiler
    // (xmlres) can create include file that contains initialization code for
    // all controls used within the resource.
    void AddHandler(wxXmlResourceHandler *handler);

    // Add a new handler at the begining of the handler list
    void InsertHandler(wxXmlResourceHandler *handler);

    // Removes all handlers
    void ClearHandlers();
    
    // Registers subclasses factory for use in XRC. This function is not meant
    // for public use, please see the comment above wxXmlSubclassFactory
    // definition.
    static void AddSubclassFactory(wxXmlSubclassFactory *factory);

    // Loads menu from resource. Returns NULL on failure.
    wxMenu *LoadMenu(const wxString& name);

    // Loads menubar from resource. Returns NULL on failure.
    wxMenuBar *LoadMenuBar(wxWindow *parent, const wxString& name);

    // Loads menubar from resource. Returns NULL on failure.
    wxMenuBar *LoadMenuBar(const wxString& name) { return LoadMenuBar(NULL, name); }

#if wxUSE_TOOLBAR
    // Loads a toolbar.
    wxToolBar *LoadToolBar(wxWindow *parent, const wxString& name);
#endif

    // Loads a dialog. dlg points to parent window (if any).
    wxDialog *LoadDialog(wxWindow *parent, const wxString& name);

    // Loads a dialog. dlg points to parent window (if any). This form
    // is used to finish creation of already existing instance (main reason
    // for this is that you may want to use derived class with new event table)
    // Example (typical usage):
    //      MyDialog dlg;
    //      wxTheXmlResource->LoadDialog(&dlg, mainFrame, "my_dialog");
    //      dlg->ShowModal();
    bool LoadDialog(wxDialog *dlg, wxWindow *parent, const wxString& name);

    // Loads a panel. panel points to parent window (if any).
    wxPanel *LoadPanel(wxWindow *parent, const wxString& name);

    // Loads a panel. panel points to parent window (if any). This form
    // is used to finish creation of already existing instance.
    bool LoadPanel(wxPanel *panel, wxWindow *parent, const wxString& name);

    // Loads a frame.
    wxFrame *LoadFrame(wxWindow* parent, const wxString& name);
    bool LoadFrame(wxFrame* frame, wxWindow *parent, const wxString& name);

    // Load an object from the resource specifying both the resource name and
    // the classname.  This lets you load nonstandard container windows.
    wxObject *LoadObject(wxWindow *parent, const wxString& name,
                         const wxString& classname);

    // Load an object from the resource specifying both the resource name and
    // the classname.  This form lets you finish the creation of an existing
    // instance.
    bool LoadObject(wxObject *instance, wxWindow *parent, const wxString& name,
                    const wxString& classname);

    // Loads a bitmap resource from a file.
    wxBitmap LoadBitmap(const wxString& name);

    // Loads an icon resource from a file.
    wxIcon LoadIcon(const wxString& name);

    // Attaches an unknown control to the given panel/window/dialog.
    // Unknown controls are used in conjunction with <object class="unknown">.
    bool AttachUnknownControl(const wxString& name, wxWindow *control,
                              wxWindow *parent = NULL);

    // Returns a numeric ID that is equivalent to the string id used in an XML
    // resource. To be used in event tables.
    // Macro XRCID is provided for convenience
    static int GetXRCID(const wxChar *str_id);

    // Returns version information (a.b.c.d = d+ 256*c + 256^2*b + 256^3*a).
    long GetVersion() const { return m_version; }

    // Compares resources version to argument. Returns -1 if resources version
    // is less than the argument, +1 if greater and 0 if they equal.
    int CompareVersion(int major, int minor, int release, int revision) const
        { return GetVersion() -
                 (major*256*256*256 + minor*256*256 + release*256 + revision); }

//// Singleton accessors.

    // Gets the global resources object or creates one if none exists.
    static wxXmlResource *Get();

    // Sets the global resources object and returns a pointer to the previous one (may be NULL).
    static wxXmlResource *Set(wxXmlResource *res);

    // Returns flags, which may be a bitlist of wxXRC_USE_LOCALE and wxXRC_NO_SUBCLASSING.
    int GetFlags() const { return m_flags; }
    // Set flags after construction.
    void SetFlags(int flags) { m_flags = flags; }

protected:
    // Scans the resources list for unloaded files and loads them. Also reloads
    // files that have been modified since last loading.
    void UpdateResources();

    // Finds a resource (calls UpdateResources) and returns a node containing it.
    wxXmlNode *FindResource(const wxString& name, const wxString& classname, bool recursive = FALSE);

    // Helper function: finds a resource (calls UpdateResources) and returns a node containing it.
    wxXmlNode *DoFindResource(wxXmlNode *parent, const wxString& name, const wxString& classname, bool recursive);

    // Creates a resource from information in the given node.
    wxObject *CreateResFromNode(wxXmlNode *node, wxObject *parent,
                                wxObject *instance = NULL);

    // Creates a resource from information in the given node
    // (Uses only 'handlerToUse' if != NULL)