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