835 lines
25 KiB
Objective-C
835 lines
25 KiB
Objective-C
/////////////////////////////////////////////////////////////////////////////
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// Name: xrc/xmlres.h
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// Purpose: interface of wxXmlResource
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// Author: wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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Flags which can be used with wxXmlResource::wxXmlResource.
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*/
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enum wxXmlResourceFlags
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{
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/** Translatable strings will be translated via _(). */
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wxXRC_USE_LOCALE = 1,
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/** Subclass property of object nodes will be ignored (useful for previews in XRC editors). */
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wxXRC_NO_SUBCLASSING = 2,
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/** Prevent the XRC files from being reloaded from disk in case they have been modified there
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since being last loaded (may slightly speed up loading them). */
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wxXRC_NO_RELOADING = 4
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};
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/**
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@class wxXmlResource
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This is the main class for interacting with the XML-based resource system.
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The class holds XML resources from one or more .xml files, binary files or zip
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archive files.
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Note that this is a singleton class and you'll never allocate/deallocate it.
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Just use the static wxXmlResource::Get() getter.
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@see @ref overview_xrc, @ref overview_xrcformat
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@library{wxxrc}
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@category{xrc}
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*/
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class wxXmlResource : public wxObject
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{
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public:
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/**
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Constructor.
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@param filemask
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The XRC file, archive file, or wildcard specification that will be
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used to load all resource files inside a zip archive.
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@param flags
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One or more value of the ::wxXmlResourceFlags enumeration.
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@param domain
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The name of the gettext catalog to search for translatable strings.
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By default all loaded catalogs will be searched.
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This provides a way to allow the strings to only come from a specific catalog.
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*/
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wxXmlResource(const wxString& filemask,
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int flags = wxXRC_USE_LOCALE,
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const wxString& domain = wxEmptyString);
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/**
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Constructor.
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@param flags
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One or more value of the ::wxXmlResourceFlags enumeration.
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@param domain
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The name of the gettext catalog to search for translatable strings.
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By default all loaded catalogs will be searched.
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This provides a way to allow the strings to only come from a specific catalog.
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*/
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wxXmlResource(int flags = wxXRC_USE_LOCALE,
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const wxString& domain = wxEmptyString);
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/**
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Destructor.
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*/
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virtual ~wxXmlResource();
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/**
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Initializes only a specific handler (or custom handler).
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Convention says that the handler name is equal to the control's name plus
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'XmlHandler', for example wxTextCtrlXmlHandler, wxHtmlWindowXmlHandler.
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The XML resource compiler (wxxrc) can create include file that contains
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initialization code for all controls used within the resource.
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Note that this handler must be allocated on the heap, since it will be
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deleted by ClearHandlers() later.
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*/
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void AddHandler(wxXmlResourceHandler* handler);
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/**
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Add a new handler at the beginning of the handler list.
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*/
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void InsertHandler(wxXmlResourceHandler *handler);
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/**
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Attaches an unknown control to the given panel/window/dialog.
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Unknown controls are used in conjunction with \<object class="unknown"\>.
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*/
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bool AttachUnknownControl(const wxString& name,
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wxWindow* control,
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wxWindow* parent = NULL);
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/**
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Removes all handlers and deletes them (this means that any handlers
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added using AddHandler() must be allocated on the heap).
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*/
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void ClearHandlers();
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/**
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Registers subclasses factory for use in XRC. This is useful only for
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language bindings developers who need a way to implement subclassing in
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wxWidgets ports that don't support wxRTTI (e.g. wxPython).
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*/
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static void AddSubclassFactory(wxXmlSubclassFactory *factory);
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/**
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Compares the XRC version to the argument.
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Returns -1 if the XRC version is less than the argument,
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+1 if greater, and 0 if they are equal.
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*/
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int CompareVersion(int major, int minor, int release, int revision) const;
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/**
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Returns a string ID corresponding to the given numeric ID.
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The string returned is such that calling GetXRCID() with it as
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parameter yields @a numId. If there is no string identifier
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corresponding to the given numeric one, an empty string is returned.
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Notice that, unlike GetXRCID(), this function is slow as it checks all
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of the identifiers used in XRC.
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@since 2.9.0
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*/
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static wxString FindXRCIDById(int numId);
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/**
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Gets the global resources object or creates one if none exists.
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*/
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static wxXmlResource* Get();
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/**
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Returns the domain (message catalog) that will be used to load
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translatable strings in the XRC.
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*/
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const wxString& GetDomain() const;
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/**
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Returns flags, which may be a bitlist of ::wxXmlResourceFlags
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enumeration values.
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*/
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int GetFlags() const;
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/**
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Returns the wxXmlNode containing the definition of the object with the
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given name or @NULL.
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This function recursively searches all the loaded XRC files for an
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object with the specified @a name. If the object is found, the
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wxXmlNode corresponding to it is returned, so this function can be used
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to access additional information defined in the XRC file and not used
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by wxXmlResource itself, e.g. contents of application-specific XML
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tags.
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@param name
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The name of the resource which must be unique for this function to
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work correctly, if there is more than one resource with the given
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name the choice of the one returned by this function is undefined.
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@return
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The node corresponding to the resource with the given name or @NULL.
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*/
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const wxXmlNode *GetResourceNode(const wxString& name) const;
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/**
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Returns version information (a.b.c.d = d + 256*c + 2562*b + 2563*a).
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*/
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long GetVersion() const;
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/**
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Returns a numeric ID that is equivalent to the string ID used in an XML resource.
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If an unknown @a str_id is requested (i.e. other than wxID_XXX or integer),
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a new record is created which associates the given string with a number.
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If @a value_if_not_found is @c wxID_NONE, the number is obtained via
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wxNewId(). Otherwise @a value_if_not_found is used.
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Macro @c XRCID(name) is provided for convenient use in event tables.
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@note IDs returned by XRCID() cannot be used with the <tt>EVT_*_RANGE</tt>
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macros, because the order in which they are assigned to symbolic @a name
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values is not guaranteed.
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*/
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static int GetXRCID(const wxString& str_id, int value_if_not_found = wxID_NONE);
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/**
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Initializes handlers for all supported controls/windows.
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This will make the executable quite big because it forces linking against
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most of the wxWidgets library.
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*/
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void InitAllHandlers();
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/**
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Loads resources from XML files that match given filemask.
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Example:
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@code
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if (!wxXmlResource::Get()->Load("rc/*.xrc"))
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wxLogError("Couldn't load resources!");
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@endcode
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@note
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If wxUSE_FILESYS is enabled, this method understands wxFileSystem URLs
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(see wxFileSystem::FindFirst()).
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@note
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If you are sure that the argument is name of single XRC file (rather
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than an URL or a wildcard), use LoadFile() instead.
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@see LoadFile(), LoadAllFiles()
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*/
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bool Load(const wxString& filemask);
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/**
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Simpler form of Load() for loading a single XRC file.
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@since 2.9.0
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@see Load(), LoadAllFiles()
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*/
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bool LoadFile(const wxFileName& file);
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/**
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Loads all .xrc files from directory @a dirname.
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Tries to load as many files as possible; if there's an error while
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loading one file, it still attempts to load other files.
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@since 2.9.0
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@see LoadFile(), Load()
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*/
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bool LoadAllFiles(const wxString& dirname);
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/**
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Loads a bitmap resource from a file.
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*/
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wxBitmap LoadBitmap(const wxString& name);
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/**
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Loads a dialog. @a parent points to parent window (if any).
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*/
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wxDialog* LoadDialog(wxWindow* parent, const wxString& name);
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/**
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Loads a dialog. @a parent points to parent window (if any).
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This form is used to finish creation of an already existing instance (the main
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reason for this is that you may want to use derived class with a new event table).
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Example:
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@code
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MyDialog dlg;
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wxXmlResource::Get()->LoadDialog(&dlg, mainFrame, "my_dialog");
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dlg.ShowModal();
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@endcode
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*/
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bool LoadDialog(wxDialog* dlg, wxWindow* parent, const wxString& name);
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/**
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Loads a frame from the resource. @a parent points to parent window (if any).
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*/
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wxFrame *LoadFrame(wxWindow* parent, const wxString& name);
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/**
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Loads the contents of a frame onto an existing wxFrame.
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This form is used to finish creation of an already existing instance
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(the main reason for this is that you may want to use derived class
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with a new event table).
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*/
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bool LoadFrame(wxFrame* frame, wxWindow* parent,
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const wxString& name);
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/**
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Loads an icon resource from a file.
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*/
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wxIcon LoadIcon(const wxString& name);
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/**
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Loads menu from resource. Returns @NULL on failure.
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*/
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wxMenu* LoadMenu(const wxString& name);
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//@{
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/**
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Loads a menubar from resource. Returns @NULL on failure.
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*/
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wxMenuBar* LoadMenuBar(wxWindow* parent, const wxString& name);
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wxMenuBar* LoadMenuBar(const wxString& name);
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//@}
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//@{
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/**
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Load an object from the resource specifying both the resource name and the
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class name.
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The first overload lets you load nonstandard container windows and returns
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@NULL on failure. The second one lets you finish the creation of an existing
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instance and returns @false on failure.
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In either case, only the resources defined at the top level of XRC
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files can be loaded by this function, use LoadObjectRecursively() if
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you need to load an object defined deeper in the hierarchy.
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*/
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wxObject* LoadObject(wxWindow* parent, const wxString& name,
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const wxString& classname);
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bool LoadObject(wxObject* instance, wxWindow* parent,
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const wxString& name,
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const wxString& classname);
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//@}
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//@{
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/**
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Load an object from anywhere in the resource tree.
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These methods are similar to LoadObject() but may be used to load an
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object from anywhere in the resource tree and not only the top level.
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Note that you will very rarely need to do this as in normal use the
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entire container window (defined at the top level) is loaded and not
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its individual children but this method can be useful in some
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particular situations.
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@since 2.9.1
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*/
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wxObject* LoadObjectRecursively(wxWindow* parent,
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const wxString& name,
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const wxString& classname);
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bool LoadObjectRecursively(wxObject* instance, wxWindow* parent,
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const wxString& name,
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const wxString& classname);
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//@}
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/**
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Loads a panel. @a parent points to the parent window.
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*/
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wxPanel* LoadPanel(wxWindow* parent, const wxString& name);
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/**
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Loads a panel. @a parent points to the parent window.
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This form is used to finish creation of an already existing instance.
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*/
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bool LoadPanel(wxPanel* panel, wxWindow* parent, const wxString& name);
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/**
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Loads a toolbar.
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*/
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wxToolBar* LoadToolBar(wxWindow* parent, const wxString& name);
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/**
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Sets the global resources object and returns a pointer to the previous one
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(may be @NULL).
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*/
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static wxXmlResource* Set(wxXmlResource* res);
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/**
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Sets the domain (message catalog) that will be used to load
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translatable strings in the XRC.
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*/
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void SetDomain(const wxString& domain);
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/**
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Sets flags (bitlist of ::wxXmlResourceFlags enumeration values).
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*/
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void SetFlags(int flags);
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/**
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This function unloads a resource previously loaded by Load().
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Returns @true if the resource was successfully unloaded and @false if it
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hasn't been found in the list of loaded resources.
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*/
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bool Unload(const wxString& filename);
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protected:
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/**
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Reports error in XRC resources to the user.
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Any errors in XRC input files should be reported using this method
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(or its wxXmlResourceHandler::ReportError() equivalent). Unlike
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wxLogError(), this method presents the error to the user in a more
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usable form. In particular, the output is compiler-like and contains
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information about the exact location of the error.
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@param context XML node the error occurred in or relates to. This can
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be @NULL, but should be the most specific node possible,
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as its line number is what is reported to the user.
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@param message Text of the error message. This string should always
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be in English (i.e. not wrapped in _()). It shouldn't
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be a sentence -- it should start with lower-case letter
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and shouldn't have a trailing period or exclamation
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point.
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@since 2.9.0
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@see wxXmlResourceHandler::ReportError(), DoReportError()
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*/
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void ReportError(const wxXmlNode *context, const wxString& message);
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/**
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Implementation of XRC resources errors reporting.
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This method is called by ReportError() and shouldn't be called
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directly; use ReportError() or wxXmlResourceHandler::ReportError()
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to log errors.
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Default implementation uses wxLogError().
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@param xrcFile File the error occurred in or empty string if it
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couldn't be determined.
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@param position XML node where the error occurred or @NULL if it
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couldn't be determined.
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@param message Text of the error message. See ReportError()
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documentation for details of the string's format.
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@note
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You may override this method in a derived class to customize errors
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reporting. If you do so, you'll need to either use the derived class
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in all your code or call wxXmlResource::Set() to change the global
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wxXmlResource instance to your class.
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@since 2.9.0
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@see ReportError()
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*/
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virtual void DoReportError(const wxString& xrcFile, const wxXmlNode *position,
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const wxString& message);
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};
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/**
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@class wxXmlResourceHandler
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wxXmlResourceHandler is an abstract base class for resource handlers
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capable of creating a control from an XML node.
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See @ref overview_xrc for details.
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@library{wxxrc}
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@category{xrc}
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*/
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class wxXmlResourceHandler : public wxObject
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{
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public:
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/**
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Default constructor.
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*/
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wxXmlResourceHandler();
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/**
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Destructor.
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*/
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virtual ~wxXmlResourceHandler();
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/**
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Creates an object (menu, dialog, control, ...) from an XML node.
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Should check for validity. @a parent is a higher-level object
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(usually window, dialog or panel) that is often necessary to
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create the resource.
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If @b instance is non-@NULL it should not create a new instance via
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'new' but should rather use this one, and call its Create method.
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*/
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wxObject* CreateResource(wxXmlNode* node, wxObject* parent,
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wxObject* instance);
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/**
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Called from CreateResource after variables were filled.
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*/
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virtual wxObject* DoCreateResource() = 0;
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/**
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Returns @true if it understands this node and can create
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a resource from it, @false otherwise.
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@note
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You must not call any wxXmlResourceHandler methods except IsOfClass()
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from this method! The instance is not yet initialized with node data
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at the time CanHandle() is called and it is only safe to operate on
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node directly or to call IsOfClass().
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*/
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virtual bool CanHandle(wxXmlNode* node) = 0;
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/**
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Sets the parent resource.
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*/
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void SetParentResource(wxXmlResource* res);
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protected:
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/**
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Add a style flag (e.g. @c wxMB_DOCKABLE) to the list of flags
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understood by this handler.
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*/
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void AddStyle(const wxString& name, int value);
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/**
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Add styles common to all wxWindow-derived classes.
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*/
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void AddWindowStyles();
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/**
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Creates children.
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*/
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void CreateChildren(wxObject* parent, bool this_hnd_only = false);
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/**
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Helper function.
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*/
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void CreateChildrenPrivately(wxObject* parent,
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wxXmlNode* rootnode = NULL);
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/**
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Creates a resource from a node.
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*/
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wxObject* CreateResFromNode(wxXmlNode* node, wxObject* parent,
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wxObject* instance = NULL);
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/**
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Creates an animation (see wxAnimation) from the filename specified in @a param.
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*/
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wxAnimation* GetAnimation(const wxString& param = "animation");
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/**
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Gets a bitmap.
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*/
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wxBitmap GetBitmap(const wxString& param = "bitmap",
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize);
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/**
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Gets a bitmap from an XmlNode.
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@since 2.9.1
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*/
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wxBitmap GetBitmap(const wxXmlNode* node,
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize);
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/**
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Gets a bool flag (1, t, yes, on, true are @true, everything else is @false).
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*/
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bool GetBool(const wxString& param, bool defaultv = false);
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/**
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Gets colour in HTML syntax (\#RRGGBB).
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*/
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wxColour GetColour(const wxString& param,
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const wxColour& defaultColour = wxNullColour);
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|
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/**
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Returns the current file system.
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*/
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wxFileSystem& GetCurFileSystem();
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/**
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|
Gets a dimension (may be in dialog units).
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*/
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wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0,
|
|
wxWindow* windowToUse = 0);
|
|
|
|
/**
|
|
Gets a direction.
|
|
|
|
If the given @a param is not present or has empty value, @a dirDefault is
|
|
returned by default. Otherwise the value of the parameter is parsed and
|
|
a warning is generated if it's not one of @c wxLEFT, @c wxTOP, @c
|
|
wxRIGHT or @c wxBOTTOM.
|
|
|
|
@since 2.9.3
|
|
*/
|
|
wxDirection GetDirection(const wxString& param, wxDirection dirDefault = wxLEFT);
|
|
|
|
/**
|
|
Gets a font.
|
|
*/
|
|
wxFont GetFont(const wxString& param = "font");
|
|
|
|
/**
|
|
Returns the XRCID.
|
|
*/
|
|
int GetID();
|
|
|
|
/**
|
|
Returns an icon.
|
|
*/
|
|
wxIcon GetIcon(const wxString& param = "icon",
|
|
const wxArtClient& defaultArtClient = wxART_OTHER,
|
|
wxSize size = wxDefaultSize);
|
|
|
|
/**
|
|
Gets an icon from an XmlNode.
|
|
|
|
@since 2.9.1
|
|
*/
|
|
wxIcon GetIcon(const wxXmlNode* node,
|
|
const wxArtClient& defaultArtClient = wxART_OTHER,
|
|
wxSize size = wxDefaultSize);
|
|
|
|
/**
|
|
Returns an icon bundle.
|
|
|
|
@note
|
|
Bundles can be loaded either with stock IDs or from files that contain
|
|
more than one image (e.g. Windows icon files). If a file contains only
|
|
single image, a bundle with only one icon will be created.
|
|
|
|
@since 2.9.0
|
|
*/
|
|
wxIconBundle GetIconBundle(const wxString& param,
|
|
const wxArtClient& defaultArtClient = wxART_OTHER);
|
|
|
|
/**
|
|
Creates an image list from the @a param markup data.
|
|
|
|
@return
|
|
The new instance of wxImageList or @NULL if no data is found.
|
|
|
|
@since 2.9.1
|
|
*/
|
|
wxImageList *GetImageList(const wxString& param = "imagelist");
|
|
|
|
/**
|
|
Gets the integer value from the parameter.
|
|
*/
|
|
long GetLong(const wxString& param, long defaultv = 0);
|
|
|
|
/**
|
|
Gets a float value from the parameter.
|
|
*/
|
|
float GetFloat(const wxString& param, float defaultv = 0);
|
|
|
|
/**
|
|
Returns the resource name.
|
|
*/
|
|
wxString GetName();
|
|
|
|
/**
|
|
Checks if the given node is an object node.
|
|
|
|
Object nodes are those named "object" or "object_ref".
|
|
|
|
@since 3.1.0
|
|
*/
|
|
bool IsObjectNode(const wxXmlNode *node) const;
|
|
/**
|
|
Gets node content from wxXML_ENTITY_NODE.
|
|
*/
|
|
wxString GetNodeContent(wxXmlNode* node);
|
|
|
|
/**
|
|
Gets the parent of the node given.
|
|
|
|
This method is safe to call with @NULL argument, it just returns @NULL
|
|
in this case.
|
|
|
|
@since 3.1.0
|
|
*/
|
|
wxXmlNode *GetNodeParent(const wxXmlNode *node) const;
|
|
|
|
/**
|
|
Gets the next sibling node related to the given node, possibly @NULL.
|
|
|
|
This method is safe to call with @NULL argument, it just returns @NULL
|
|
in this case.
|
|
|
|
@since 3.1.0
|
|
*/
|
|
wxXmlNode *GetNodeNext(const wxXmlNode *node) const;
|
|
|
|
/**
|
|
Gets the first child of the given node or @NULL.
|
|
|
|
This method is safe to call with @NULL argument, it just returns @NULL
|
|
in this case.
|
|
|
|
@since 3.1.0
|
|
*/
|
|
wxXmlNode *GetNodeChildren(const wxXmlNode *node) const;
|
|
|
|
|
|
/**
|
|
Finds the node or returns @NULL.
|
|
*/
|
|
wxXmlNode* GetParamNode(const wxString& param);
|
|
|
|
/**
|
|
Finds the parameter value or returns the empty string.
|
|
*/
|
|
wxString GetParamValue(const wxString& param);
|
|
|
|
/**
|
|
Returns the node parameter value.
|
|
|
|
@since 2.9.1
|
|
*/
|
|
wxString GetParamValue(const wxXmlNode* node);
|
|
|
|
/**
|
|
Gets the position (may be in dialog units).
|
|
*/
|
|
wxPoint GetPosition(const wxString& param = "pos");
|
|
|
|
/**
|
|
Gets the size (may be in dialog units).
|
|
*/
|
|
wxSize GetSize(const wxString& param = "size", wxWindow* windowToUse = 0);
|
|
|
|
/**
|
|
Gets style flags from text in form "flag | flag2| flag3 |..."
|
|
Only understands flags added with AddStyle().
|
|
*/
|
|
int GetStyle(const wxString& param = "style", int defaults = 0);
|
|
|
|
/**
|
|
Gets text from param and does some conversions:
|
|
- replaces \\n, \\r, \\t by respective characters (according to C syntax)
|
|
- replaces @c $ by @c and @c $$ by @c $ (needed for @c _File to @c File
|
|
translation because of XML syntax)
|
|
- calls wxGetTranslations (unless disabled in wxXmlResource)
|
|
*/
|
|
wxString GetText(const wxString& param, bool translate = true);
|
|
|
|
/**
|
|
Check to see if a parameter exists.
|
|
*/
|
|
bool HasParam(const wxString& param);
|
|
|
|
/**
|
|
Convenience function.
|
|
Returns @true if the node has a property class equal to classname,
|
|
e.g. object class="wxDialog".
|
|
*/
|
|
bool IsOfClass(wxXmlNode* node, const wxString& classname);
|
|
|
|
/**
|
|
Sets common window options.
|
|
*/
|
|
void SetupWindow(wxWindow* wnd);
|
|
|
|
/**
|
|
Reports error in XRC resources to the user.
|
|
|
|
See wxXmlResource::ReportError() for more information.
|
|
|
|
@since 2.9.0
|
|
*/
|
|
void ReportError(wxXmlNode *context, const wxString& message);
|
|
|
|
/**
|
|
Like ReportError(wxXmlNode*, const wxString&), but uses the node
|
|
of currently processed object (m_node) as the context.
|
|
|
|
@since 2.9.0
|
|
*/
|
|
void ReportError(const wxString& message);
|
|
|
|
/**
|
|
Like ReportError(wxXmlNode*, const wxString&), but uses the node
|
|
of parameter @a param of the currently processed object as the context.
|
|
This is convenience function for reporting errors in particular
|
|
parameters.
|
|
|
|
@since 2.9.0
|
|
*/
|
|
void ReportParamError(const wxString& param, const wxString& message);
|
|
|
|
|
|
/**
|
|
After CreateResource has been called this will return the current
|
|
wxXmlResource object.
|
|
|
|
@since 2.9.5
|
|
*/
|
|
wxXmlResource* GetResource() const;
|
|
|
|
/**
|
|
After CreateResource has been called this will return the XML node
|
|
being processed.
|
|
|
|
@since 2.9.5
|
|
*/
|
|
wxXmlNode* GetNode() const;
|
|
|
|
/**
|
|
After CreateResource has been called this will return the class name of
|
|
the XML resource node being processed.
|
|
|
|
@since 2.9.5
|
|
*/
|
|
wxString GetClass() const;
|
|
|
|
/**
|
|
After CreateResource has been called this will return the current
|
|
item's parent, if any.
|
|
|
|
@since 2.9.5
|
|
*/
|
|
wxObject* GetParent() const;
|
|
|
|
/**
|
|
After CreateResource has been called this will return the instance that
|
|
the XML resource content should be created upon, if it has already been
|
|
created. If @NULL then the handler should create the object itself.
|
|
|
|
@since 2.9.5
|
|
*/
|
|
wxObject* GetInstance() const;
|
|
|
|
/**
|
|
After CreateResource has been called this will return the item's parent
|
|
as a wxWindow.
|
|
|
|
@since 2.9.5
|
|
*/
|
|
wxWindow* GetParentAsWindow() const;
|
|
};
|
|
|