/////////////////////////////////////////////////////////////////////////////// // Name: wx/htmllbox.h // Purpose: wxHtmlListBox is a listbox whose items are wxHtmlCells // Author: Vadim Zeitlin // Modified by: // Created: 31.05.03 // Copyright: (c) 2003 Vadim Zeitlin // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// #ifndef _WX_HTMLLBOX_H_ #define _WX_HTMLLBOX_H_ #include "wx/defs.h" #if wxUSE_HTML #include "wx/vlbox.h" // base class #include "wx/html/htmlwin.h" #include "wx/ctrlsub.h" #if wxUSE_FILESYSTEM #include "wx/filesys.h" #endif // wxUSE_FILESYSTEM class WXDLLIMPEXP_FWD_HTML wxHtmlCell; class WXDLLIMPEXP_FWD_HTML wxHtmlWinParser; class WXDLLIMPEXP_FWD_HTML wxHtmlListBoxCache; class WXDLLIMPEXP_FWD_HTML wxHtmlListBoxStyle; extern WXDLLIMPEXP_DATA_HTML(const char) wxHtmlListBoxNameStr[]; extern WXDLLIMPEXP_DATA_HTML(const char) wxSimpleHtmlListBoxNameStr[]; // ---------------------------------------------------------------------------- // wxHtmlListBox // ---------------------------------------------------------------------------- class WXDLLIMPEXP_HTML wxHtmlListBox : public wxVListBox, public wxHtmlWindowInterface, public wxHtmlWindowMouseHelper { wxDECLARE_ABSTRACT_CLASS(wxHtmlListBox); public: // constructors and such // --------------------- // default constructor, you must call Create() later wxHtmlListBox(); // normal constructor which calls Create() internally wxHtmlListBox(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0, const wxString& name = wxASCII_STR(wxHtmlListBoxNameStr)); // really creates the control and sets the initial number of items in it // (which may be changed later with SetItemCount()) // // the only special style which may be specified here is wxLB_MULTIPLE // // returns true on success or false if the control couldn't be created bool Create(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0, const wxString& name = wxASCII_STR(wxHtmlListBoxNameStr)); // destructor cleans up whatever resources we use virtual ~wxHtmlListBox(); // override some base class virtuals virtual void RefreshRow(size_t line) wxOVERRIDE; virtual void RefreshRows(size_t from, size_t to) wxOVERRIDE; virtual void RefreshAll() wxOVERRIDE; virtual void SetItemCount(size_t count) wxOVERRIDE; #if wxUSE_FILESYSTEM // retrieve the file system used by the wxHtmlWinParser: if you use // relative paths in your HTML, you should use its ChangePathTo() method wxFileSystem& GetFileSystem() { return m_filesystem; } const wxFileSystem& GetFileSystem() const { return m_filesystem; } #endif // wxUSE_FILESYSTEM virtual void OnInternalIdle() wxOVERRIDE; protected: // this method must be implemented in the derived class and should return // the body (i.e. without ) of the HTML for the given item virtual wxString OnGetItem(size_t n) const = 0; // this function may be overridden to decorate HTML returned by OnGetItem() virtual wxString OnGetItemMarkup(size_t n) const; // this method allows to customize the selection appearance: it may be used // to specify the colour of the text which normally has the given colour // colFg when it is inside the selection // // by default, the original colour is not used at all and all text has the // same (default for this system) colour inside selection virtual wxColour GetSelectedTextColour(const wxColour& colFg) const; // this is the same as GetSelectedTextColour() but allows to customize the // background colour -- this is even more rarely used as you can change it // globally using SetSelectionBackground() virtual wxColour GetSelectedTextBgColour(const wxColour& colBg) const; // we implement both of these functions in terms of OnGetItem(), they are // not supposed to be overridden by our descendants virtual void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const wxOVERRIDE; virtual wxCoord OnMeasureItem(size_t n) const wxOVERRIDE; // override this one to draw custom background for selected items correctly virtual void OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const wxOVERRIDE; // this method may be overridden to handle clicking on a link in the // listbox (by default, clicks on links are simply ignored) virtual void OnLinkClicked(size_t n, const wxHtmlLinkInfo& link); // event handlers void OnSize(wxSizeEvent& event); void OnMouseMove(wxMouseEvent& event); void OnLeftDown(wxMouseEvent& event); // common part of all ctors void Init(); // ensure that the given item is cached void CacheItem(size_t n) const; private: // wxHtmlWindowInterface methods: virtual void SetHTMLWindowTitle(const wxString& title) wxOVERRIDE; virtual void OnHTMLLinkClicked(const wxHtmlLinkInfo& link) wxOVERRIDE; virtual wxHtmlOpeningStatus OnHTMLOpeningURL(wxHtmlURLType type, const wxString& url, wxString *redirect) const wxOVERRIDE; virtual wxPoint HTMLCoordsToWindow(wxHtmlCell *cell, const wxPoint& pos) const wxOVERRIDE; virtual wxWindow* GetHTMLWindow() wxOVERRIDE; virtual wxColour GetHTMLBackgroundColour() const wxOVERRIDE; virtual void SetHTMLBackgroundColour(const wxColour& clr) wxOVERRIDE; virtual void SetHTMLBackgroundImage(const wxBitmap& bmpBg) wxOVERRIDE; virtual void SetHTMLStatusText(const wxString& text) wxOVERRIDE; virtual wxCursor GetHTMLCursor(HTMLCursor type) const wxOVERRIDE; // returns index of item that contains given HTML cell size_t GetItemForCell(const wxHtmlCell *cell) const; // Create the cell for the given item, caller is responsible for freeing it. wxHtmlCell* CreateCellForItem(size_t n) const; // return physical coordinates of root wxHtmlCell of n-th item wxPoint GetRootCellCoords(size_t n) const; // Converts physical coordinates stored in @a pos into coordinates // relative to the root cell of the item under mouse cursor, if any. If no // cell is found under the cursor, returns false. Otherwise stores the new // coordinates back into @a pos and pointer to the cell under cursor into // @a cell and returns true. bool PhysicalCoordsToCell(wxPoint& pos, wxHtmlCell*& cell) const; // The opposite of PhysicalCoordsToCell: converts coordinates relative to // given cell to physical coordinates in the window wxPoint CellCoordsToPhysical(const wxPoint& pos, wxHtmlCell *cell) const; private: // this class caches the pre-parsed HTML to speed up display wxHtmlListBoxCache *m_cache; // HTML parser we use wxHtmlWinParser *m_htmlParser; #if wxUSE_FILESYSTEM // file system used by m_htmlParser wxFileSystem m_filesystem; #endif // wxUSE_FILESYSTEM // rendering style for the parser which allows us to customize our colours wxHtmlListBoxStyle *m_htmlRendStyle; // it calls our GetSelectedTextColour() and GetSelectedTextBgColour() friend class wxHtmlListBoxStyle; friend class wxHtmlListBoxWinInterface; wxDECLARE_EVENT_TABLE(); wxDECLARE_NO_COPY_CLASS(wxHtmlListBox); }; // ---------------------------------------------------------------------------- // wxSimpleHtmlListBox // ---------------------------------------------------------------------------- #define wxHLB_DEFAULT_STYLE wxBORDER_SUNKEN #define wxHLB_MULTIPLE wxLB_MULTIPLE class WXDLLIMPEXP_HTML wxSimpleHtmlListBox : public wxWindowWithItems { wxDECLARE_ABSTRACT_CLASS(wxSimpleHtmlListBox); public: // wxListbox-compatible constructors // --------------------------------- wxSimpleHtmlListBox() { } wxSimpleHtmlListBox(wxWindow *parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, int n = 0, const wxString choices[] = NULL, long style = wxHLB_DEFAULT_STYLE, const wxValidator& validator = wxDefaultValidator, const wxString& name = wxASCII_STR(wxSimpleHtmlListBoxNameStr)) { Create(parent, id, pos, size, n, choices, style, validator, name); } wxSimpleHtmlListBox(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size, const wxArrayString& choices, long style = wxHLB_DEFAULT_STYLE, const wxValidator& validator = wxDefaultValidator, const wxString& name = wxASCII_STR(wxSimpleHtmlListBoxNameStr)) { Create(parent, id, pos, size, choices, style, validator, name); } bool Create(wxWindow *parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, int n = 0, const wxString choices[] = NULL, long style = wxHLB_DEFAULT_STYLE, const wxValidator& validator = wxDefaultValidator, const wxString& name = wxASCII_STR(wxSimpleHtmlListBoxNameStr)); bool Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size, const wxArrayString& choices, long style = wxHLB_DEFAULT_STYLE, const wxValidator& validator = wxDefaultValidator, const wxString& name = wxASCII_STR(wxSimpleHtmlListBoxNameStr)); virtual ~wxSimpleHtmlListBox(); // these must be overloaded otherwise the compiler will complain // about wxItemContainerImmutable::[G|S]etSelection being pure virtuals... void SetSelection(int n) wxOVERRIDE { wxVListBox::SetSelection(n); } int GetSelection() const wxOVERRIDE { return wxVListBox::GetSelection(); } // accessing strings // ----------------- virtual unsigned int GetCount() const wxOVERRIDE { return m_items.GetCount(); } virtual wxString GetString(unsigned int n) const wxOVERRIDE; // override default unoptimized wxItemContainer::GetStrings() function wxArrayString GetStrings() const { return m_items; } virtual void SetString(unsigned int n, const wxString& s) wxOVERRIDE; // resolve ambiguity between wxItemContainer and wxVListBox versions void Clear() wxOVERRIDE; protected: virtual int DoInsertItems(const wxArrayStringsAdapter & items, unsigned int pos, void **clientData, wxClientDataType type) wxOVERRIDE; virtual void DoSetItemClientData(unsigned int n, void *clientData) wxOVERRIDE { m_HTMLclientData[n] = clientData; } virtual void *DoGetItemClientData(unsigned int n) const wxOVERRIDE { return m_HTMLclientData[n]; } // wxItemContainer methods virtual void DoClear() wxOVERRIDE; virtual void DoDeleteOneItem(unsigned int n) wxOVERRIDE; // calls wxHtmlListBox::SetItemCount() and RefreshAll() void UpdateCount(); // override these functions just to change their visibility: users of // wxSimpleHtmlListBox shouldn't be allowed to call them directly! virtual void SetItemCount(size_t count) wxOVERRIDE { wxHtmlListBox::SetItemCount(count); } virtual void SetRowCount(size_t count) { wxHtmlListBox::SetRowCount(count); } virtual wxString OnGetItem(size_t n) const wxOVERRIDE { return m_items[n]; } virtual void InitEvent(wxCommandEvent& event, int n) wxOVERRIDE { // we're not a virtual control and we can include the string // of the item which was clicked: event.SetString(m_items[n]); wxVListBox::InitEvent(event, n); } wxArrayString m_items; wxArrayPtrVoid m_HTMLclientData; // Note: For the benefit of old compilers (like gcc-2.8) this should // not be named m_clientdata as that clashes with the name of an // anonymous struct member in wxEvtHandler, which we derive from. wxDECLARE_NO_COPY_CLASS(wxSimpleHtmlListBox); }; #endif // wxUSE_HTML #endif // _WX_HTMLLBOX_H_