// 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
#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 flags:
+#define wxHW_SCROLLBAR_NEVER 0x0002
+#define wxHW_SCROLLBAR_AUTO 0x0004
+#define wxHW_NO_SELECTION 0x0008
+
+#define wxHW_DEFAULT_STYLE wxHW_SCROLLBAR_AUTO
+
+
+// enums for wxHtmlWindow::OnOpeningURL
+enum wxHtmlOpeningStatus
+{
+ wxHTML_OPEN,
+ wxHTML_BLOCK,
+ wxHTML_REDIRECT
+};
+
+// ----------------------------------------------------------------------------
// 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
+// 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,
+ 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
// 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;}
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.
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();
// Adds input filter
static void AddFilter(wxHtmlFilter *filter);
- // Called when users 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; }
// 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);
+
+ // 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
// 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();
+ // 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:
- // 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)
+ 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;
// parser which is used to parse HTML input.
// Each wxHtmlWindow has it's own parser because sharing one global
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;
+#endif // wxUSE_STATUSBAR
// 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:
- // a flag indicated if mouse moved
- // (if TRUE we will try to change cursor in last call to OnIdle)
- bool m_tmpMouseMoved;
+ // 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 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;
// this filter is used when no filter is able to read some file
static wxHtmlFilter *m_DefaultFilter;
- static wxCursor *s_cur_hand;
- static wxCursor *s_cur_arrow;
+ // html processors array:
+ wxHtmlProcessorList *m_Processors;
+ static wxHtmlProcessorList *m_GlobalProcessors;
- wxHtmlHistoryArray *m_History;
// browser history
+ wxHtmlHistoryArray *m_History;
int m_HistoryPos;
// if this FLAG is false, items are not added to history
bool m_HistoryOn;
- // html processors array:
- wxHtmlProcessorList *m_Processors;
- static wxHtmlProcessorList *m_GlobalProcessors;
+ // 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_
+
projects / wxWidgets.git / blobdiff