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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| 
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| #ifndef _WX_XMLRES_H_
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| #define _WX_XMLRES_H_
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| 
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| #ifdef __GNUG__
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| #pragma interface "xmlres.h"
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| #endif
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| 
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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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| 
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| #include "wx/xrc/xml.h"
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| 
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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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| 
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| class WXXMLDLLEXPORT wxXmlResourceHandler;
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| 
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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|     
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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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| 
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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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| 
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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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| 
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|     // Removes all handlers
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|     void ClearHandlers();
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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|     bool LoadFrame(wxFrame* frame, wxWindow *parent, const wxString& name);
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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|                  
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|     // Singleton accessors:
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|     
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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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| 
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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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| 
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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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| 
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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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| 
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|     int GetFlags() { return m_flags; }
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| 
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| private:
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|     long m_version;
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| 
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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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| 
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|     friend class wxXmlResourceHandler;
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|     
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|     // singleton instance:
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|     static wxXmlResource *ms_instance;
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| };
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| 
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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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| 
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| #define XMLID(str_id) \
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|     wxXmlResource::GetXMLID(wxT(str_id))
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| 
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| 
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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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| 
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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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| 
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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|     void SetParentResource(wxXmlResource *res) { m_resource = res; }
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| 
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| 
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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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| 
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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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| 
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|     // --- Handy methods:
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| 
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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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| 
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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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| 
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|     // Check to see if a param exists
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|     bool HasParam(const wxString& param);
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| 
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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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| 
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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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| 
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|     // Add styles common to all wxWindow-derived classes
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|     void AddWindowStyles();
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| 
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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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| 
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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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| 
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|     // Return XMLID
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|     int GetID();
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|     wxString GetName();
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| 
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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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| 
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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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| 
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|     // Get colour in HTML syntax (#RRGGBB)
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|     wxColour GetColour(const wxString& param);
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| 
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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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| 
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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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| 
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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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| 
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|     // Get font:
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|     wxFont GetFont(const wxString& param = wxT("font"));
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| 
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|     // Sets common window options:
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|     void SetupWindow(wxWindow *wnd);
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| 
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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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| 
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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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| 
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| 
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| // Programmer-friendly macros for writing XRC handlers:
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| 
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| #define XRC_ADD_STYLE(style) AddStyle(wxT(#style), style)
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| 
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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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| 
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| 
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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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| 
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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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| 
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| 
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| 
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| #endif // _WX_XMLRES_H_
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