X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9749497156909657d17ef972857caaca4bd09da2..05c3f0fc73d9124061c08e3d707b4e3d6bab4ff4:/include/wx/html/htmlwin.h diff --git a/include/wx/html/htmlwin.h b/include/wx/html/htmlwin.h index 75585561b6..388cc12010 100644 --- a/include/wx/html/htmlwin.h +++ b/include/wx/html/htmlwin.h @@ -4,14 +4,14 @@ // Author: Vaclav Slavik // RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik -// Licence: wxWindows Licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_HTMLWIN_H_ #define _WX_HTMLWIN_H_ -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma interface "htmlwin.h" #endif @@ -21,66 +21,80 @@ #include "wx/window.h" #include "wx/scrolwin.h" #include "wx/config.h" -#include "wx/treectrl.h" #include "wx/html/winpars.h" #include "wx/html/htmlcell.h" #include "wx/filesys.h" #include "wx/html/htmlfilt.h" +#include "wx/filename.h" +#include "wx/bitmap.h" +class wxHtmlProcessor; +class wxHtmlWinModule; +class wxHtmlHistoryArray; +class wxHtmlProcessorList; +class WXDLLIMPEXP_HTML wxHtmlWinAutoScrollTimer; -//-------------------------------------------------------------------------------- -// wxHtmlWindow -// (This is probably the only class you will directly use.) -// Purpose of this class is to display HTML page (either local -// file or downloaded via HTTP protocol) in a window. Width -// of window is constant - given in constructor - virtual height -// is changed dynamicly depending on page size. -// Once the window is created you can set it's content by calling -// SetPage(text) or LoadPage(filename). -//-------------------------------------------------------------------------------- +// wxHtmlWindow flags: +#define wxHW_SCROLLBAR_NEVER 0x0002 +#define wxHW_SCROLLBAR_AUTO 0x0004 +#define wxHW_NO_SELECTION 0x0008 -// item of history list -class WXDLLEXPORT HtmlHistoryItem : public wxObject -{ -public: - HtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;} - int GetPos() const {return m_Pos;} - void SetPos(int p) {m_Pos = p;} - const wxString& GetPage() const {return m_Page;} - const wxString& GetAnchor() const {return m_Anchor;} - -private: - wxString m_Page; - wxString m_Anchor; - int m_Pos; -}; +#define wxHW_DEFAULT_STYLE wxHW_SCROLLBAR_AUTO -WX_DECLARE_EXPORTED_OBJARRAY(HtmlHistoryItem, HtmlHistoryArray); +// enums for wxHtmlWindow::OnOpeningURL +enum wxHtmlOpeningStatus +{ + wxHTML_OPEN, + wxHTML_BLOCK, + wxHTML_REDIRECT +}; -class wxHtmlWinModule; +// ---------------------------------------------------------------------------- +// wxHtmlWindow +// (This is probably the only class you will directly use.) +// Purpose of this class is to display HTML page (either local +// file or downloaded via HTTP protocol) in a window. Width of +// window is constant - given in constructor - virtual height +// is changed dynamicly depending on page size. Once the +// window is created you can set it's content by calling +// SetPage(text) or LoadPage(filename). +// ---------------------------------------------------------------------------- -class WXDLLEXPORT wxHtmlWindow : public wxScrolledWindow +class WXDLLIMPEXP_HTML wxHtmlWindow : public wxScrolledWindow { DECLARE_DYNAMIC_CLASS(wxHtmlWindow) friend class wxHtmlWinModule; public: - wxHtmlWindow() : wxScrolledWindow() {}; - wxHtmlWindow(wxWindow *parent, wxWindowID id = -1, - const wxPoint& pos = wxDefaultPosition, + wxHtmlWindow() { Init(); } + wxHtmlWindow(wxWindow *parent, wxWindowID id = wxID_ANY, + const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, - long style = wxHW_SCROLLBAR_AUTO, - const wxString& name = "htmlWindow"); + long style = wxHW_DEFAULT_STYLE, + const wxString& name = wxT("htmlWindow")) + { + Init(); + Create(parent, id, pos, size, style, name); + } ~wxHtmlWindow(); + bool Create(wxWindow *parent, wxWindowID id = wxID_ANY, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = wxHW_SCROLLBAR_AUTO, + const wxString& name = wxT("htmlWindow")); + // Set HTML page and display it. !! source is HTML document itself, // it is NOT address/filename of HTML document. If you want to // specify document location, use LoadPage() istead - // Return value : FALSE if an error occured, TRUE otherwise + // Return value : false if an error occured, true otherwise bool SetPage(const wxString& source); + // Append to current page + bool AppendToPage(const wxString& source); + // Load HTML page from given location. Location can be either // a) /usr/wxGTK2/docs/html/wx.htm // b) http://www.somewhere.uk/document.htm @@ -90,7 +104,10 @@ public: // After the page is loaded, the method calls SetPage() to display it. // Note : you can also use path relative to previously loaded page // Return value : same as SetPage - bool LoadPage(const wxString& location); + virtual bool LoadPage(const wxString& location); + + // Loads HTML page from file + bool LoadFile(const wxFileName& filename); // Returns full location of opened page wxString GetOpenedPage() const {return m_OpenedPage;} @@ -104,20 +121,29 @@ public: void SetRelatedFrame(wxFrame* frame, const wxString& format); wxFrame* GetRelatedFrame() const {return m_RelatedFrame;} +#if wxUSE_STATUSBAR // After(!) calling SetRelatedFrame, this sets statusbar slot where messages // will be displayed. Default is -1 = no messages. void SetRelatedStatusBar(int bar); +#endif // wxUSE_STATUSBAR // Sets fonts to be used when displaying HTML page. - void SetFonts(wxString normal_face, wxString fixed_face, const int *sizes); + void SetFonts(wxString normal_face, wxString fixed_face, + const int *sizes = NULL); - // Sets the title of the window - // (depending on the information passed to SetRelatedFrame() method) - virtual void OnSetTitle(const wxString& title); + // Sets font sizes to be relative to the given size or the system + // default size; use either specified or default font + void SetStandardFonts(int size = -1, + const wxString& normal_face = wxEmptyString, + const wxString& fixed_face = wxEmptyString); // Sets space between text and window borders. void SetBorders(int b) {m_Borders = b;} + // Sets the bitmap to use for background (currnetly it will be tiled, + // when/if we have CSS support we could add other possibilities...) + void SetBackgroundImage(const wxBitmap& bmpBg) { m_bmpBg = bmpBg; } + // Saves custom settings into cfg config. it will use the path 'path' // if given, otherwise it will save info into currently selected path. // saved values : things set by SetFonts, SetBorders. @@ -126,7 +152,7 @@ public: virtual void WriteCustomization(wxConfigBase *cfg, wxString path = wxEmptyString); // Goes to previous/next page (in browsing history) - // Returns TRUE if successful, FALSE otherwise + // Returns true if successful, false otherwise bool HistoryBack(); bool HistoryForward(); bool HistoryCanBack(); @@ -141,94 +167,209 @@ public: // Adds input filter static void AddFilter(wxHtmlFilter *filter); - // Called when users clicked on hypertext link. Default behavior is to + // Returns a pointer to the parser. + wxHtmlWinParser *GetParser() const { return m_Parser; } + + // Adds HTML processor to this instance of wxHtmlWindow: + void AddProcessor(wxHtmlProcessor *processor); + // Adds HTML processor to wxHtmlWindow class as whole: + static void AddGlobalProcessor(wxHtmlProcessor *processor); + + + // -- Callbacks -- + + // Sets the title of the window + // (depending on the information passed to SetRelatedFrame() method) + virtual void OnSetTitle(const wxString& title); + + // Called when the mouse hovers over a cell: (x, y) are logical coords + // Default behaviour is to do nothing at all + virtual void OnCellMouseHover(wxHtmlCell *cell, wxCoord x, wxCoord y); + + // Called when user clicks on a cell. Default behavior is to call + // OnLinkClicked() if this cell corresponds to a hypertext link + virtual void OnCellClicked(wxHtmlCell *cell, + wxCoord x, wxCoord y, + const wxMouseEvent& event); + + // Called when user clicked on hypertext link. Default behavior is to // call LoadPage(loc) virtual void OnLinkClicked(const wxHtmlLinkInfo& link); - // Returns a pointer to the parser. - wxHtmlWinParser *GetParser() const { return m_Parser; } + // Called when wxHtmlWindow wants to fetch data from an URL (e.g. when + // loading a page or loading an image). The data are downloaded if and only if + // OnOpeningURL returns true. If OnOpeningURL returns wxHTML_REDIRECT, + // it must set *redirect to the new URL + virtual wxHtmlOpeningStatus OnOpeningURL(wxHtmlURLType WXUNUSED(type), + const wxString& WXUNUSED(url), + wxString *WXUNUSED(redirect)) const + { return wxHTML_OPEN; } + +#if wxUSE_CLIPBOARD + // Helper functions to select parts of page: + void SelectWord(const wxPoint& pos); + void SelectLine(const wxPoint& pos); + void SelectAll(); + + // Convert selection to text: + wxString SelectionToText() { return DoSelectionToText(m_selection); } + + // Converts current page to text: + wxString ToText(); +#endif // wxUSE_CLIPBOARD protected: + void Init(); + // Scrolls to anchor of this name. (Anchor is #news // or #features etc. it is part of address sometimes: // http://www.ms.mff.cuni.cz/~vsla8348/wxhtml/index.html#news) - // Return value : TRUE if anchor exists, FALSE otherwise + // Return value : true if anchor exists, false otherwise bool ScrollToAnchor(const wxString& anchor); - // Prepares layout (= fill m_PosX, m_PosY for fragments) based on + // Prepares layout (= fill m_PosX, m_PosY for fragments) based on // actual size of window. This method also setup scrollbars void CreateLayout(); - void OnDraw(wxDC& dc); + void OnEraseBackground(wxEraseEvent& event); + void OnPaint(wxPaintEvent& event); void OnSize(wxSizeEvent& event); - void OnMouseEvent(wxMouseEvent& event); - void OnIdle(wxIdleEvent& event); + void OnMouseMove(wxMouseEvent& event); + void OnMouseDown(wxMouseEvent& event); + void OnMouseUp(wxMouseEvent& event); +#if wxUSE_CLIPBOARD + void OnKeyUp(wxKeyEvent& event); + void OnDoubleClick(wxMouseEvent& event); + void OnCopy(wxCommandEvent& event); + void OnMouseEnter(wxMouseEvent& event); + void OnMouseLeave(wxMouseEvent& event); +#endif // wxUSE_CLIPBOARD + + virtual void OnInternalIdle(); // Returns new filter (will be stored into m_DefaultFilter variable) virtual wxHtmlFilter *GetDefaultFilter() {return new wxHtmlFilterPlainText;} + // cleans static variables static void CleanUpStatics(); - // cleans static variables + // Returns true if text selection is enabled (wxClipboard must be available + // and wxHW_NO_SELECTION not used) + bool IsSelectionEnabled() const; + + enum ClipboardType + { + Primary, + Secondary + }; + + // Copies selection to clipboard if the clipboard support is available + // + // returns true if anything was copied to clipboard, false otherwise + bool CopySelection(ClipboardType t = Secondary); + +#if wxUSE_CLIPBOARD + // Automatic scrolling during selection: + void StopAutoScrolling(); +#endif // wxUSE_CLIPBOARD protected: + wxString DoSelectionToText(wxHtmlSelection *sel); + + // This is pointer to the first cell in parsed data. (Note: the first cell + // is usually top one = all other cells are sub-cells of this one) wxHtmlContainerCell *m_Cell; - // This is pointer to the first cell in parsed data. - // (Note: the first cell is usually top one = all other cells are sub-cells of this one) + // parser which is used to parse HTML input. + // Each wxHtmlWindow has it's own parser because sharing one global + // parser would be problematic (because of reentrancy) wxHtmlWinParser *m_Parser; - // parser which is used to parse HTML input. - // Each wxHtmlWindow has it's own parser because sharing one global - // parser would be problematic (because of reentrancy) + // contains name of actualy opened page or empty string if no page opened wxString m_OpenedPage; - // contains name of actualy opened page or empty string if no page opened + // contains name of current anchor within m_OpenedPage wxString m_OpenedAnchor; - // contains name of current anchor within m_OpenedPage + // contains title of actualy opened page or empty string if no tag wxString m_OpenedPageTitle; - // contains title of actualy opened page or empty string if no <TITLE> tag + // class for opening files (file system) wxFileSystem* m_FS; - // class for opening files (file system) wxFrame *m_RelatedFrame; wxString m_TitleFormat; +#if wxUSE_STATUSBAR + // frame in which page title should be displayed & number of it's statusbar + // reserved for usage with this html window int m_RelatedStatusBar; - // frame in which page title should be displayed & number of it's statusbar - // reserved for usage with this html window +#endif // wxUSE_STATUSBAR + // borders (free space between text and window borders) + // defaults to 10 pixels. int m_Borders; - // borders (free space between text and window borders) - // defaults to 10 pixels. int m_Style; + // current text selection or NULL + wxHtmlSelection *m_selection; + + // true if the user is dragging mouse to select text + bool m_makingSelection; + +#if wxUSE_CLIPBOARD + // time of the last doubleclick event, used to detect tripleclicks + // (tripleclicks are used to select whole line): + wxLongLong m_lastDoubleClick; + + // helper class to automatically scroll the window if the user is selecting + // text and the mouse leaves wxHtmlWindow: + wxHtmlWinAutoScrollTimer *m_timerAutoScroll; +#endif // wxUSE_CLIPBOARD + private: - bool m_tmpMouseMoved; - // a flag indicated if mouse moved - // (if TRUE we will try to change cursor in last call to OnIdle) + // window content for double buffered rendering: + wxBitmap *m_backBuffer; + + // background image, may be invalid + wxBitmap m_bmpBg; + + // variables used when user is selecting text + wxPoint m_tmpSelFromPos; + wxHtmlCell *m_tmpSelFromCell; + + // contains last link name wxHtmlLinkInfo *m_tmpLastLink; - // contains last link name + // contains the last (terminal) cell which contained the mouse + wxHtmlCell *m_tmpLastCell; + // if >0 contents of the window is not redrawn + // (in order to avoid ugly blinking) int m_tmpCanDrawLocks; - // if >0 contents of the window is not redrawn - // (in order to avoid ugly blinking) + // list of HTML filters static wxList m_Filters; - // list of HTML filters + // this filter is used when no filter is able to read some file static wxHtmlFilter *m_DefaultFilter; - // this filter is used when no filter is able to read some file - static wxCursor *s_cur_hand; - static wxCursor *s_cur_arrow; + // html processors array: + wxHtmlProcessorList *m_Processors; + static wxHtmlProcessorList *m_GlobalProcessors; - HtmlHistoryArray m_History; + // browser history + wxHtmlHistoryArray *m_History; int m_HistoryPos; - // browser history + // if this FLAG is false, items are not added to history bool m_HistoryOn; - // if this FLAG is false, items are not added to history + // a flag indicated if mouse moved + // (if true we will try to change cursor in last call to OnIdle) + bool m_tmpMouseMoved; + + // a flag set if we need to erase background in OnPaint() (otherwise this + // is supposed to have been done in OnEraseBackground()) + bool m_eraseBgInOnPaint; DECLARE_EVENT_TABLE() + DECLARE_NO_COPY_CLASS(wxHtmlWindow) }; -#endif +#endif // wxUSE_HTML #endif // _WX_HTMLWIN_H_ +