390 lines
13 KiB
C++
390 lines
13 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/xrc/xmlreshandler.cpp
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// Purpose: XML resource handler
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// Author: Steven Lamerton
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// Created: 2011/01/26
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// RCS-ID: $id$
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// Copyright: (c) 2011 Steven Lamerton
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_XRC_XMLRESHANDLER_H_
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#define _WX_XRC_XMLRESHANDLER_H_
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#include "wx/defs.h"
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#if wxUSE_XRC
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#include "wx/string.h"
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#include "wx/artprov.h"
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#include "wx/colour.h"
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#include "wx/filesys.h"
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#include "wx/imaglist.h"
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#include "wx/window.h"
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class WXDLLIMPEXP_FWD_ADV wxAnimation;
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class WXDLLIMPEXP_FWD_XML wxXmlNode;
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class WXDLLIMPEXP_FWD_XML wxXmlResource;
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class WXDLLIMPEXP_FWD_CORE wxXmlResourceHandler;
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// Helper macro used by the classes derived from wxXmlResourceHandler but also
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// by wxXmlResourceHandler implementation itself.
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#define XRC_ADD_STYLE(style) AddStyle(wxT(#style), style)
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// Abstract base class for the implementation object used by
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// wxXmlResourceHandlerImpl. The real implementation is in
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// wxXmlResourceHandlerImpl class in the "xrc" library while this class is in
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// the "core" itself -- but it is so small that it doesn't matter.
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class WXDLLIMPEXP_CORE wxXmlResourceHandlerImplBase : public wxObject
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{
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public:
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// Constructor.
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wxXmlResourceHandlerImplBase(wxXmlResourceHandler *handler)
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: m_handler(handler)
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{}
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// Destructor.
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virtual ~wxXmlResourceHandlerImplBase() {}
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virtual wxObject *CreateResource(wxXmlNode *node, wxObject *parent,
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wxObject *instance) = 0;
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virtual bool IsOfClass(wxXmlNode *node, const wxString& classname) const = 0;
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virtual wxString GetNodeContent(const wxXmlNode *node) = 0;
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virtual bool HasParam(const wxString& param) = 0;
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virtual wxXmlNode *GetParamNode(const wxString& param) = 0;
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virtual wxString GetParamValue(const wxString& param) = 0;
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virtual wxString GetParamValue(const wxXmlNode* node) = 0;
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virtual int GetStyle(const wxString& param = wxT("style"), int defaults = 0) = 0;
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virtual wxString GetText(const wxString& param, bool translate = true) = 0;
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virtual int GetID() = 0;
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virtual wxString GetName() = 0;
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virtual bool GetBool(const wxString& param, bool defaultv = false) = 0;
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virtual long GetLong(const wxString& param, long defaultv = 0) = 0;
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virtual float GetFloat(const wxString& param, float defaultv = 0) = 0;
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virtual wxColour GetColour(const wxString& param,
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const wxColour& defaultv = wxNullColour) = 0;
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virtual wxSize GetSize(const wxString& param = wxT("size"),
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wxWindow *windowToUse = NULL) = 0;
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virtual wxPoint GetPosition(const wxString& param = wxT("pos")) = 0;
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virtual wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0,
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wxWindow *windowToUse = NULL) = 0;
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virtual wxDirection GetDirection(const wxString& param, wxDirection dir = wxLEFT) = 0;
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virtual wxBitmap GetBitmap(const wxString& param = wxT("bitmap"),
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize) = 0;
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virtual wxBitmap GetBitmap(const wxXmlNode* node,
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize) = 0;
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virtual wxIcon GetIcon(const wxString& param = wxT("icon"),
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize) = 0;
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virtual wxIcon GetIcon(const wxXmlNode* node,
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize) = 0;
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virtual wxIconBundle GetIconBundle(const wxString& param,
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const wxArtClient& defaultArtClient = wxART_OTHER) = 0;
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virtual wxImageList *GetImageList(const wxString& param = wxT("imagelist")) = 0;
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#if wxUSE_ANIMATIONCTRL
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virtual wxAnimation* GetAnimation(const wxString& param = wxT("animation")) = 0;
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#endif
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virtual wxFont GetFont(const wxString& param = wxT("font"), wxWindow* parent = NULL) = 0;
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virtual bool GetBoolAttr(const wxString& attr, bool defaultv) = 0;
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virtual void SetupWindow(wxWindow *wnd) = 0;
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virtual void CreateChildren(wxObject *parent, bool this_hnd_only = false) = 0;
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virtual void CreateChildrenPrivately(wxObject *parent,
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wxXmlNode *rootnode = NULL) = 0;
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virtual wxObject *CreateResFromNode(wxXmlNode *node, wxObject *parent,
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wxObject *instance = NULL) = 0;
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#if wxUSE_FILESYSTEM
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virtual wxFileSystem& GetCurFileSystem() = 0;
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#endif
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virtual void ReportError(wxXmlNode *context, const wxString& message) = 0;
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virtual void ReportError(const wxString& message) = 0;
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virtual void ReportParamError(const wxString& param, const wxString& message) = 0;
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wxXmlResourceHandler* GetHandler() { return m_handler; }
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protected:
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wxXmlResourceHandler *m_handler;
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};
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// Base class for all XRC handlers.
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//
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// Notice that this class is defined in the core library itself and so can be
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// used as the base class by classes in any GUI library. However to actually be
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// usable, it needs to be registered with wxXmlResource which implies linking
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// the application with the xrc library.
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//
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// Also note that all the methods forwarding to GetImpl() are documented only
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// in wxXmlResourceHandlerImpl in wx/xrc/xmlres.h to avoid duplication.
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class WXDLLIMPEXP_CORE wxXmlResourceHandler : public wxObject
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{
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public:
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// Constructor creates an unusable object, before anything can be done with
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// it, SetImpl() needs to be called as done by wxXmlResource::AddHandler().
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wxXmlResourceHandler()
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{
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m_node = NULL;
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m_parent =
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m_instance = NULL;
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m_parentAsWindow = NULL;
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m_resource = NULL;
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m_impl = NULL;
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}
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// This should be called exactly once.
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void SetImpl(wxXmlResourceHandlerImplBase* impl)
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{
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wxASSERT_MSG( !m_impl, wxS("Should be called exactly once") );
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m_impl = impl;
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}
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// Destructor.
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virtual ~wxXmlResourceHandler()
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{
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delete m_impl;
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}
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wxObject *CreateResource(wxXmlNode *node, wxObject *parent,
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wxObject *instance)
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{
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return GetImpl()->CreateResource(node, parent, 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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// 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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void SetParentResource(wxXmlResource *res)
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{
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m_resource = res;
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}
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// These methods are not forwarded to wxXmlResourceHandlerImpl because they
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// are called from the derived classes ctors and so before SetImpl() can be
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// called.
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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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protected:
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// Everything else is simply forwarded to wxXmlResourceHandlerImpl.
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void ReportError(wxXmlNode *context, const wxString& message)
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{
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GetImpl()->ReportError(context, message);
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}
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void ReportError(const wxString& message)
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{
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GetImpl()->ReportError(message);
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}
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void ReportParamError(const wxString& param, const wxString& message)
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{
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GetImpl()->ReportParamError(param, message);
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}
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bool IsOfClass(wxXmlNode *node, const wxString& classname) const
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{
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return GetImpl()->IsOfClass(node, classname);
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}
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wxString GetNodeContent(const wxXmlNode *node)
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{
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return GetImpl()->GetNodeContent(node);
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}
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bool HasParam(const wxString& param)
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{
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return GetImpl()->HasParam(param);
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}
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wxXmlNode *GetParamNode(const wxString& param)
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{
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return GetImpl()->GetParamNode(param);
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}
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wxString GetParamValue(const wxString& param)
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{
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return GetImpl()->GetParamValue(param);
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}
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wxString GetParamValue(const wxXmlNode* node)
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{
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return GetImpl()->GetParamValue(node);
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}
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int GetStyle(const wxString& param = wxT("style"), int defaults = 0)
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{
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return GetImpl()->GetStyle(param, defaults);
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}
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wxString GetText(const wxString& param, bool translate = true)
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{
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return GetImpl()->GetText(param, translate);
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}
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int GetID() const
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{
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return GetImpl()->GetID();
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}
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wxString GetName()
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{
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return GetImpl()->GetName();
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}
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bool GetBool(const wxString& param, bool defaultv = false)
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{
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return GetImpl()->GetBool(param, defaultv);
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}
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long GetLong(const wxString& param, long defaultv = 0)
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{
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return GetImpl()->GetLong(param, defaultv);
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}
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float GetFloat(const wxString& param, float defaultv = 0)
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{
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return GetImpl()->GetFloat(param, defaultv);
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}
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wxColour GetColour(const wxString& param,
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const wxColour& defaultv = wxNullColour)
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{
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return GetImpl()->GetColour(param, defaultv);
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}
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wxSize GetSize(const wxString& param = wxT("size"),
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wxWindow *windowToUse = NULL)
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{
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return GetImpl()->GetSize(param, windowToUse);
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}
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wxPoint GetPosition(const wxString& param = wxT("pos"))
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{
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return GetImpl()->GetPosition(param);
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}
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wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0,
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wxWindow *windowToUse = NULL)
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{
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return GetImpl()->GetDimension(param, defaultv, windowToUse);
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}
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wxDirection GetDirection(const wxString& param, wxDirection dir = wxLEFT)
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{
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return GetImpl()->GetDirection(param, dir);
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}
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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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{
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return GetImpl()->GetBitmap(param, defaultArtClient, size);
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}
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wxBitmap GetBitmap(const wxXmlNode* node,
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize)
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{
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return GetImpl()->GetBitmap(node, defaultArtClient, size);
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}
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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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{
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return GetImpl()->GetIcon(param, defaultArtClient, size);
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}
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wxIcon GetIcon(const wxXmlNode* node,
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const wxArtClient& defaultArtClient = wxART_OTHER,
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wxSize size = wxDefaultSize)
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{
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return GetImpl()->GetIcon(node, defaultArtClient, size);
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}
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wxIconBundle GetIconBundle(const wxString& param,
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const wxArtClient& defaultArtClient = wxART_OTHER)
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{
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return GetImpl()->GetIconBundle(param, defaultArtClient);
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}
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wxImageList *GetImageList(const wxString& param = wxT("imagelist"))
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{
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return GetImpl()->GetImageList(param);
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}
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#if wxUSE_ANIMATIONCTRL
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wxAnimation* GetAnimation(const wxString& param = wxT("animation"))
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{
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return GetImpl()->GetAnimation(param);
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}
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#endif
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wxFont GetFont(const wxString& param = wxT("font"),
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wxWindow* parent = NULL)
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{
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return GetImpl()->GetFont(param, parent);
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}
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bool GetBoolAttr(const wxString& attr, bool defaultv)
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{
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return GetImpl()->GetBoolAttr(attr, defaultv);
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}
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void SetupWindow(wxWindow *wnd)
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{
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GetImpl()->SetupWindow(wnd);
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}
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void CreateChildren(wxObject *parent, bool this_hnd_only = false)
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{
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GetImpl()->CreateChildren(parent, this_hnd_only);
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}
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void CreateChildrenPrivately(wxObject *parent, wxXmlNode *rootnode = NULL)
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{
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GetImpl()->CreateChildrenPrivately(parent, rootnode);
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}
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wxObject *CreateResFromNode(wxXmlNode *node,
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wxObject *parent, wxObject *instance = NULL)
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{
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return GetImpl()->CreateResFromNode(node, parent, instance);
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}
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#if wxUSE_FILESYSTEM
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wxFileSystem& GetCurFileSystem()
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{
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return GetImpl()->GetCurFileSystem();
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}
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#endif
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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;
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wxXmlResource *m_resource;
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// provide method access to those member variables
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wxXmlResource* GetResource() const { return m_resource; }
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wxXmlNode* GetNode() const { return m_node; }
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wxString GetClass() const { return m_class; }
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wxObject* GetParent() const { return m_parent; }
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wxObject* GetInstance() const { return m_instance; }
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wxWindow* GetParentAsWindow() const { return m_parentAsWindow; }
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wxArrayString m_styleNames;
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wxArrayInt m_styleValues;
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friend class wxXmlResourceHandlerImpl;
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private:
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// This is supposed to never return NULL because SetImpl() should have been
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// called.
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wxXmlResourceHandlerImplBase* GetImpl() const;
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wxXmlResourceHandlerImplBase *m_impl;
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wxDECLARE_ABSTRACT_CLASS(wxXmlResourceHandler);
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};
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#endif // wxUSE_XRC
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#endif // _WX_XRC_XMLRESHANDLER_H_
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