30dc34551b
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21623 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
485 lines
18 KiB
C++
485 lines
18 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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#if defined(__GNUG__) && !defined(__APPLE__)
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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/artprov.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 WXDLLIMPEXP_XRC wxXmlResourceHandler;
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class WXDLLIMPEXP_XRC wxXmlSubclassFactory;
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class WXDLLIMPEXP_XRC wxXmlSubclassFactoriesList;
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class wxXmlResourceModule;
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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
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// of new attribute to control handler is _not_ incompatible change, because
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// older 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,
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// in which 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 _T("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 WXDLLIMPEXP_XRC 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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WX_DECLARE_USER_EXPORTED_OBJARRAY(wxXmlResourceDataRecord,
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wxXmlResourceDataRecords,
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WXDLLIMPEXP_XRC);
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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 WXDLLIMPEXP_XRC wxXmlResource : public wxObject
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{
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public:
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// Constructor.
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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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// Constructor.
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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(const wxString& filemask, int flags = wxXRC_USE_LOCALE);
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// Destructor.
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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 the wxWindows library.
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void InitAllHandlers();
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// Initialize only a specific handler (or custom handler). Convention says
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// that handler name is equal to the control's name plus 'XmlHandler', for
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// example wxTextCtrlXmlHandler, wxHtmlWindowXmlHandler. The XML resource
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// compiler (xmlres) can create include file that contains initialization
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// code for all controls used within the resource.
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void AddHandler(wxXmlResourceHandler *handler);
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// Add a new handler at the begining of the handler list
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void InsertHandler(wxXmlResourceHandler *handler);
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// Removes all handlers
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void ClearHandlers();
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// Registers subclasses factory for use in XRC. This function is not meant
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// for public use, please see the comment above wxXmlSubclassFactory
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// definition.
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static void AddSubclassFactory(wxXmlSubclassFactory *factory);
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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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// Loads menubar from resource. Returns NULL on failure.
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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 a toolbar.
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wxToolBar *LoadToolBar(wxWindow *parent, const wxString& name);
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#endif
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// Loads a dialog. dlg points to parent window (if any).
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wxDialog *LoadDialog(wxWindow *parent, const wxString& name);
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// Loads a dialog. dlg points to parent window (if any). This 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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bool LoadDialog(wxDialog *dlg, wxWindow *parent, const wxString& name);
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// Loads a panel. panel points to parent window (if any).
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wxPanel *LoadPanel(wxWindow *parent, const wxString& name);
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// Loads a panel. panel points to parent window (if any). This form
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// is used to finish creation of already existing instance.
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bool LoadPanel(wxPanel *panel, wxWindow *parent, const wxString& name);
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// Loads a frame.
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wxFrame *LoadFrame(wxWindow* parent, const wxString& name);
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bool LoadFrame(wxFrame* frame, wxWindow *parent, const wxString& name);
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// Load an object from the resource specifying both the resource name and
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// the classname. This lets you load nonstandard container windows.
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wxObject *LoadObject(wxWindow *parent, const wxString& name,
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const wxString& classname);
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// Load an object from the resource specifying both the resource name and
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// the classname. This form lets you finish the creation of an existing
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// instance.
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bool LoadObject(wxObject *instance, wxWindow *parent, const wxString& name,
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const wxString& classname);
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// Loads a bitmap resource from a file.
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wxBitmap LoadBitmap(const wxString& name);
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// Loads an icon resource from a file.
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wxIcon LoadIcon(const wxString& name);
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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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bool AttachUnknownControl(const wxString& name, wxWindow *control,
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wxWindow *parent = NULL);
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// Returns a numeric ID that is equivalent to the string id used in an XML
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// resource. To be used in event tables.
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// Macro XRCID is provided for convenience
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static int GetXRCID(const wxChar *str_id);
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// Returns version information (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 the global resources object or creates one if none exists.
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static wxXmlResource *Get();
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// Sets the global resources object and returns a pointer to the previous one (may be NULL).
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static wxXmlResource *Set(wxXmlResource *res);
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// Returns flags, which may be a bitlist of wxXRC_USE_LOCALE and wxXRC_NO_SUBCLASSING.
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int GetFlags() const { return m_flags; }
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// Set flags after construction.
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void SetFlags(int flags) { m_flags = flags; }
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protected:
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// Scans the 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 a resource (calls UpdateResources) and returns a node containing it.
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wxXmlNode *FindResource(const wxString& name, const wxString& classname, bool recursive = FALSE);
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// Helper function: finds a resource (calls UpdateResources) and returns a node containing it.
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wxXmlNode *DoFindResource(wxXmlNode *parent, const wxString& name, const wxString& classname, bool recursive);
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// Creates a resource from information in the given node
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// (Uses only 'handlerToUse' if != NULL)
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wxObject *CreateResFromNode(wxXmlNode *node, wxObject *parent,
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wxObject *instance = NULL,
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wxXmlResourceHandler *handlerToUse = NULL);
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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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friend class wxXmlResourceModule;
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static wxXmlSubclassFactoriesList *ms_subclassFactories;
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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(XRCID("quit"), MyFrame::OnQuit)
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// EVT_MENU(XRCID("about"), MyFrame::OnAbout)
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// EVT_MENU(XRCID("new"), MyFrame::OnNew)
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// EVT_MENU(XRCID("open"), MyFrame::OnOpen)
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// END_EVENT_TABLE()
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#define XRCID(str_id) \
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wxXmlResource::GetXRCID(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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// XRCCTRL(dlg, "my_textctrl", wxTextCtrl)->SetValue(wxT("default value"));
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#ifdef __WXDEBUG__
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#define XRCCTRL(window, id, type) \
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(wxDynamicCast((window).FindWindow(XRCID(id)), type))
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#else
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#define XRCCTRL(window, id, type) \
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((type*)((window).FindWindow(XRCID(id))))
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#endif
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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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class WXDLLIMPEXP_XRC wxXmlResourceHandler : public wxObject
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{
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DECLARE_ABSTRACT_CLASS(wxXmlResourceHandler)
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public:
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// Constructor.
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wxXmlResourceHandler();
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// Destructor.
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virtual ~wxXmlResourceHandler() {}
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// Creates an object (menu, dialog, control, ...) from an XML node.
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// Should check for validity.
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// parent is a higher-level object (usually window, dialog or panel)
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// that is often neccessary to create the resource.
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// If instance is non-NULL it should not create a new instance via 'new' but
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// should 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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// a resource from it, FALSE otherwise.
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virtual bool CanHandle(wxXmlNode *node) = 0;
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// Sets the parent resource.
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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 a 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 parameter 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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// Finds the parameter value or returns the empty string.
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wxString GetParamValue(const wxString& param);
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// Add a style flag (e.g. wxMB_DOCKABLE) to the 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 conversions:
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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, bool translate = TRUE);
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// Returns the XRCID.
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int GetID();
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// Returns the resource name.
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wxString GetName();
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// Gets a 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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// Gets the integer value from the parameter.
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long GetLong( const wxString& param, long defaultv = 0 );
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// Gets colour in HTML syntax (#RRGGBB).
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wxColour GetColour(const wxString& param);
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// Gets the size (may be in dialog units).
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wxSize GetSize(const wxString& param = wxT("size"));
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// Gets the position (may be in dialog units).
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wxPoint GetPosition(const wxString& param = wxT("pos"));
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// Gets a dimension (may be in dialog units).
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wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0);
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// Gets a bitmap.
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wxBitmap GetBitmap(const wxString& param = wxT("bitmap"),
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize);
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// Gets an icon.
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wxIcon GetIcon(const wxString& param = wxT("icon"),
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize);
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// Gets a 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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// Creates children.
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void CreateChildren(wxObject *parent, bool this_hnd_only = FALSE);
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// Helper function.
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void CreateChildrenPrivately(wxObject *parent, wxXmlNode *rootnode = NULL);
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// Creates a resource from a node.
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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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// This class is used to create instances of XRC "object" nodes with "subclass"
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// property. It is _not_ supposed to be used by XRC users, you should instead
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// register your subclasses via wxWindows' RTTI mechanism. This class is useful
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// only for language bindings developer who need a way to implement subclassing
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// in wxWindows ports that don't support wxRTTI (e.g. wxPython).
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class WXDLLIMPEXP_XRC wxXmlSubclassFactory
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{
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public:
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// Try to create instance of given class and return it, return NULL on
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// failure:
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virtual wxObject *Create(const wxString& className) = 0;
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virtual ~wxXmlSubclassFactory() {}
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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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#if WXWIN_COMPATIBILITY_2_4
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#define ADD_STYLE XRC_ADD_STYLE
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#define wxTheXmlResource wxXmlResource::Get()
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#define XMLID XRCID
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#define XMLCTRL XRCCTRL
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#define GetXMLID GetXRCID
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#endif
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#endif // _WX_XMLRES_H_
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