546b00063e
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13646 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
393 lines
14 KiB
C++
393 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: xmlres.h
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// Purpose: XML resources
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// Author: Vaclav Slavik
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// Created: 2000/03/05
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// RCS-ID: $Id$
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// Copyright: (c) 2000 Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_XMLRES_H_
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#define _WX_XMLRES_H_
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#ifdef __GNUG__
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#pragma interface "xmlres.h"
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#endif
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#include "wx/defs.h"
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#include "wx/string.h"
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#include "wx/dynarray.h"
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#include "wx/datetime.h"
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#include "wx/list.h"
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#include "wx/gdicmn.h"
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#include "wx/filesys.h"
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#include "wx/bitmap.h"
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#include "wx/icon.h"
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#include "wx/xrc/xml.h"
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class WXDLLEXPORT wxMenu;
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class WXDLLEXPORT wxMenuBar;
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class WXDLLEXPORT wxDialog;
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class WXDLLEXPORT wxPanel;
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class WXDLLEXPORT wxWindow;
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class WXDLLEXPORT wxFrame;
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class WXDLLEXPORT wxToolBar;
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class WXXMLDLLEXPORT wxXmlResourceHandler;
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// These macros indicate current version of XML resources (this information is
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// encoded in root node of XRC file as "version" property).
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//
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// Rules for increasing version number:
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// - change it only if you made incompatible change to the format. Addition of new
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// attribute to control handler is _not_ incompatible change, because older
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// versions of the library may ignore it.
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// - if you change version number, follow these steps:
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// - set major, minor and release numbers to respective version numbers of
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// the wxWindows library (see wx/version.h)
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// - reset revision to 0 unless the first three are same as before, in which
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// case you should increase revision by one
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#define WX_XMLRES_CURRENT_VERSION_MAJOR 2
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#define WX_XMLRES_CURRENT_VERSION_MINOR 3
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#define WX_XMLRES_CURRENT_VERSION_RELEASE 0
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#define WX_XMLRES_CURRENT_VERSION_REVISION 1
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#define WX_XMLRES_CURRENT_VERSION_STRING "2.3.0.1"
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#define WX_XMLRES_CURRENT_VERSION \
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(WX_XMLRES_CURRENT_VERSION_MAJOR * 256*256*256 + \
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WX_XMLRES_CURRENT_VERSION_MINOR * 256*256 + \
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WX_XMLRES_CURRENT_VERSION_RELEASE * 256 + \
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WX_XMLRES_CURRENT_VERSION_REVISION)
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class WXXMLDLLEXPORT wxXmlResourceDataRecord
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{
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public:
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wxXmlResourceDataRecord() : Doc(NULL), Time(wxDateTime::Now()) {}
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~wxXmlResourceDataRecord() {delete Doc;}
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wxString File;
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wxXmlDocument *Doc;
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wxDateTime Time;
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};
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#ifdef WXXMLISDLL
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WX_DECLARE_EXPORTED_OBJARRAY(wxXmlResourceDataRecord, wxXmlResourceDataRecords);
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#else
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WX_DECLARE_OBJARRAY(wxXmlResourceDataRecord, wxXmlResourceDataRecords);
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#endif
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enum wxXmlResourceFlags
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{
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wxXRC_USE_LOCALE = 1,
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wxXRC_NO_SUBCLASSING = 2
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};
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// This class holds XML resources from one or more .xml files
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// (or derived forms, either binary or zipped -- see manual for
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// details).
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class WXXMLDLLEXPORT wxXmlResource : public wxObject
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{
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public:
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// Ctor.
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// Flags: wxXRC_USE_LOCALE
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// translatable strings will be translated via _()
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// wxXRC_NO_SUBCLASSING
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// subclass property of object nodes will be ignored
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// (useful for previews in XRC editors)
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wxXmlResource(int flags = wxXRC_USE_LOCALE);
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wxXmlResource(const wxString& filemask, int flags = wxXRC_USE_LOCALE);
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~wxXmlResource();
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// Loads resources from XML files that match given filemask.
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// This method understands VFS (see filesys.h).
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bool Load(const wxString& filemask);
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// Initialize handlers for all supported controls/windows. This will
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// make the executable quite big because it forces linking against
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// most of wxWin library
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void InitAllHandlers();
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// Initialize only specific handler (or custom handler). Convention says
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// that handler name is equal to control's name plus 'XmlHandler', e.g.
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// wxTextCtrlXmlHandler, wxHtmlWindowXmlHandler. XML resource compiler
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// (xmlres) can create include file that contains initialization code for
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// all controls used within the resource.
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void AddHandler(wxXmlResourceHandler *handler);
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// Removes all handlers
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void ClearHandlers();
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// Loads menu from resource. Returns NULL on failure.
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wxMenu *LoadMenu(const wxString& name);
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// Loads menubar from resource. Returns NULL on failure.
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wxMenuBar *LoadMenuBar(wxWindow *parent, const wxString& name);
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wxMenuBar *LoadMenuBar(const wxString& name) { return LoadMenuBar(NULL, name); }
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#if wxUSE_TOOLBAR
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// Loads toolbar
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wxToolBar *LoadToolBar(wxWindow *parent, const wxString& name);
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#endif
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// Loads dialog. dlg points to parent window (if any). Second form
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// is used to finish creation of already existing instance (main reason
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// for this is that you may want to use derived class with new event table)
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// Example (typical usage):
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// MyDialog dlg;
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// wxTheXmlResource->LoadDialog(&dlg, mainFrame, "my_dialog");
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// dlg->ShowModal();
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wxDialog *LoadDialog(wxWindow *parent, const wxString& name);
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bool LoadDialog(wxDialog *dlg, wxWindow *parent, const wxString& name);
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// Loads panel. panel points to parent window (if any). Second form
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// is used to finish creation of already existing instance.
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wxPanel *LoadPanel(wxWindow *parent, const wxString& name);
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bool LoadPanel(wxPanel *panel, wxWindow *parent, const wxString& name);
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bool LoadFrame(wxFrame* frame, wxWindow *parent, const wxString& name);
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// Loads bitmap or icon resource from file:
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wxBitmap LoadBitmap(const wxString& name);
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wxIcon LoadIcon(const wxString& name);
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// Attaches unknown control into given panel/window/dialog:
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// (unknown controls are used in conjunction with <object class="unknown">)
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bool AttachUnknownControl(const wxString& name, wxWindow *control,
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wxWindow *parent = NULL);
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// Returns numeric ID that is equivalent to string id used in XML
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// resource. To be used in event tables
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// Macro XMLID is provided for convenience
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static int GetXMLID(const wxChar *str_id);
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// Returns version info (a.b.c.d = d+ 256*c + 256^2*b + 256^3*a)
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long GetVersion() const { return m_version; }
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// Compares resources version to argument. Returns -1 if resources version
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// is less than the argument, +1 if greater and 0 if they equal.
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int CompareVersion(int major, int minor, int release, int revision) const
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{ return GetVersion() -
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(major*256*256*256 + minor*256*256 + release*256 + revision); }
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// Singleton accessors:
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// Gets global resources object or create one if none exists
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static wxXmlResource *Get();
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// Sets global resources object and returns pointer to previous one (may be NULL).
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static wxXmlResource *Set(wxXmlResource *res);
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protected:
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// Scans resources list for unloaded files and loads them. Also reloads
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// files that have been modified since last loading.
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void UpdateResources();
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// Finds resource (calls UpdateResources) and returns node containing it
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wxXmlNode *FindResource(const wxString& name, const wxString& classname, bool recursive = FALSE);
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wxXmlNode *DoFindResource(wxXmlNode *parent, const wxString& name, const wxString& classname, bool recursive);
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// Creates resource from info in given node:
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wxObject *CreateResFromNode(wxXmlNode *node, wxObject *parent, wxObject *instance = NULL);
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int GetFlags() { return m_flags; }
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private:
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long m_version;
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int m_flags;
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wxList m_handlers;
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wxXmlResourceDataRecords m_data;
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#if wxUSE_FILESYSTEM
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wxFileSystem m_curFileSystem;
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wxFileSystem& GetCurFileSystem() { return m_curFileSystem; }
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#endif
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friend class wxXmlResourceHandler;
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// singleton instance:
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static wxXmlResource *ms_instance;
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};
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// This macro translates string identifier (as used in XML resource,
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// e.g. <menuitem id="my_menu">...</menuitem>) to integer id that is needed by
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// wxWindows event tables.
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// Example:
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// BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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// EVT_MENU(XMLID("quit"), MyFrame::OnQuit)
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// EVT_MENU(XMLID("about"), MyFrame::OnAbout)
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// EVT_MENU(XMLID("new"), MyFrame::OnNew)
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// EVT_MENU(XMLID("open"), MyFrame::OnOpen)
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// END_EVENT_TABLE()
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#define XMLID(str_id) \
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wxXmlResource::GetXMLID(wxT(str_id))
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// This macro returns pointer to particular control in dialog
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// created using XML resources. You can use it to set/get values from
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// controls.
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// Example:
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// wxDialog dlg;
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// wxXmlResource::Get()->LoadDialog(&dlg, mainFrame, "my_dialog");
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// XMLCTRL(dlg, "my_textctrl", wxTextCtrl)->SetValue(wxT("default value"));
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#ifdef __WXDEBUG__
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#define XMLCTRL(window, id, type) \
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(wxDynamicCast((window).FindWindow(XMLID(id)), type))
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#else
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#define XMLCTRL(window, id, type) \
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((type*)((window).FindWindow(XMLID(id))))
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#endif
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class WXXMLDLLEXPORT wxXmlResourceHandler : public wxObject
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{
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public:
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wxXmlResourceHandler();
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virtual ~wxXmlResourceHandler() {}
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// Creates object (menu, dialog, control, ...) from XML node.
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// Should check for validity.
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// parent is higher-level object (usually window, dialog or panel)
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// that is often neccessary to create resource
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// if instance != NULL it should not create new instance via 'new' but
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// rather use this one and call its Create method
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wxObject *CreateResource(wxXmlNode *node, wxObject *parent,
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wxObject *instance);
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// This one is called from CreateResource after variables
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// were filled
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virtual wxObject *DoCreateResource() = 0;
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// Returns TRUE if it understands this node and can create
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// resource from it, FALSE otherwise.
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virtual bool CanHandle(wxXmlNode *node) = 0;
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void SetParentResource(wxXmlResource *res) { m_resource = res; }
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protected:
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wxXmlResource *m_resource;
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wxArrayString m_styleNames;
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wxArrayInt m_styleValues;
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// Variables (filled by CreateResource)
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wxXmlNode *m_node;
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wxString m_class;
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wxObject *m_parent, *m_instance;
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wxWindow *m_parentAsWindow, *m_instanceAsWindow;
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// --- Handy methods:
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// Returns true if the node has property class equal to classname,
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// e.g. <object class="wxDialog">
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bool IsOfClass(wxXmlNode *node, const wxString& classname)
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{ return node->GetPropVal(wxT("class"), wxEmptyString) == classname; }
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// Gets node content from wxXML_ENTITY_NODE
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// (the problem is, <tag>content<tag> is represented as
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// wxXML_ENTITY_NODE name="tag", content=""
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// |-- wxXML_TEXT_NODE or
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// wxXML_CDATA_SECTION_NODE name="" content="content"
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wxString GetNodeContent(wxXmlNode *node);
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// Check to see if a param exists
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bool HasParam(const wxString& param);
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// Finds the node or returns NULL
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wxXmlNode *GetParamNode(const wxString& param);
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wxString GetParamValue(const wxString& param);
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// Add style flag (e.g. wxMB_DOCKABLE) to list of flags
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// understood by this handler
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void AddStyle(const wxString& name, int value);
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// Add styles common to all wxWindow-derived classes
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void AddWindowStyles();
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// Gets style flags from text in form "flag | flag2| flag3 |..."
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// Only understads flags added with AddStyle
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int GetStyle(const wxString& param = wxT("style"), int defaults = 0);
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// Gets text from param and does some convertions:
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// - replaces \n, \r, \t by respective chars (according to C syntax)
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// - replaces $ by & and $$ by $ (needed for $File => &File because of XML)
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// - calls wxGetTranslations (unless disabled in wxXmlResource)
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wxString GetText(const wxString& param);
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// Return XMLID
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int GetID();
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wxString GetName();
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// Get bool flag (1,t,yes,on,true are TRUE, everything else is FALSE)
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bool GetBool(const wxString& param, bool defaultv = FALSE);
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// Get integer value from param
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long GetLong( const wxString& param, long defaultv = 0 );
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// Get colour in HTML syntax (#RRGGBB)
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wxColour GetColour(const wxString& param);
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// Get size/position (may be in dlg units):
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wxSize GetSize(const wxString& param = wxT("size"));
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wxPoint GetPosition(const wxString& param = wxT("pos"));
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// Get dimension (may be in dlg units):
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wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0);
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// Get bitmap:
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wxBitmap GetBitmap(const wxString& param = wxT("bitmap"),
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wxSize size = wxDefaultSize);
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wxIcon GetIcon(const wxString& param = wxT("icon"),
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wxSize size = wxDefaultSize);
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// Get font:
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wxFont GetFont(const wxString& param = wxT("font"));
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// Sets common window options:
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void SetupWindow(wxWindow *wnd);
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void CreateChildren(wxObject *parent, bool this_hnd_only = FALSE);
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void CreateChildrenPrivately(wxObject *parent, wxXmlNode *rootnode = NULL);
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wxObject *CreateResFromNode(wxXmlNode *node,
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wxObject *parent, wxObject *instance = NULL)
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{ return m_resource->CreateResFromNode(node, parent, instance); }
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// helper
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#if wxUSE_FILESYSTEM
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wxFileSystem& GetCurFileSystem() { return m_resource->GetCurFileSystem(); }
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#endif
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};
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// Programmer-friendly macros for writing XRC handlers:
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#define XRC_ADD_STYLE(style) AddStyle(wxT(#style), style)
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#define XRC_MAKE_INSTANCE(variable, classname) \
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classname *variable = NULL; \
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if (m_instance) \
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variable = wxStaticCast(m_instance, classname); \
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if (!variable) \
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variable = new classname;
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// FIXME -- remove this $%^#$%#$@# as soon as Ron checks his changes in!!
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void wxXmlInitResourceModule();
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/* -------------------------------------------------------------------------
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Backward compatibility macros. Do *NOT* use, they may disappear in future
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versions of the XRC library!
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------------------------------------------------------------------------- */
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#define ADD_STYLE XRC_ADD_STYLE
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#define wxTheXmlResource wxXmlResource::Get()
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#endif // _WX_XMLRES_H_
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