// as a basic visual element of HTML page
// Author: Vaclav Slavik
// RCS-ID: $Id$
-// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Copyright: (c) 1999-2003 Vaclav Slavik
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
#ifndef _WX_HTMLCELL_H_
#define _WX_HTMLCELL_H_
-#ifdef __GNUG__
-#pragma interface
-#endif
-
#include "wx/defs.h"
#if wxUSE_HTML
#include "wx/html/htmldefs.h"
#include "wx/window.h"
-class wxHtmlCell;
-class wxHtmlContainerCell;
-//--------------------------------------------------------------------------------
-// wxHtmlCell
-// Internal data structure. It represents fragments of parsed HTML
-// page - a word, picture, table, horizontal line and so on.
-// It is used by wxHtmlWindow to represent HTML page in memory.
-//--------------------------------------------------------------------------------
+class WXDLLIMPEXP_FWD_HTML wxHtmlWindowInterface;
+class WXDLLIMPEXP_FWD_HTML wxHtmlLinkInfo;
+class WXDLLIMPEXP_FWD_HTML wxHtmlCell;
+class WXDLLIMPEXP_FWD_HTML wxHtmlContainerCell;
-class WXDLLEXPORT wxHtmlCell : public wxObject
+// wxHtmlSelection is data holder with information about text selection.
+// Selection is defined by two positions (beginning and end of the selection)
+// and two leaf(!) cells at these positions.
+class WXDLLIMPEXP_HTML wxHtmlSelection
{
- public:
- wxHtmlCell() : wxObject() {m_Next = NULL; m_Parent = NULL; m_Width = m_Height = m_Descent = 0; m_CanLiveOnPagebreak = TRUE;}
- virtual ~wxHtmlCell() {if (m_Next) delete m_Next;};
-
- void SetParent(wxHtmlContainerCell *p) {m_Parent = p;}
- wxHtmlContainerCell *GetParent() const {return m_Parent;}
-
- int GetPosX() const {return m_PosX;}
- int GetPosY() const {return m_PosY;}
- int GetWidth() const {return m_Width;}
- int GetHeight() const {return m_Height;}
- int GetDescent() const {return m_Descent;}
- virtual wxString GetLink(int WXUNUSED(x) = 0,
- int WXUNUSED(y) = 0) const
- { return m_Link; }
- // returns the link associated with this cell. The position is position within
- // the cell so it varies from 0 to m_Width, from 0 to m_Height
- wxHtmlCell *GetNext() const {return m_Next;}
- // members access methods
-
- virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;}
- void SetLink(const wxString& link) {m_Link = link;}
- void SetNext(wxHtmlCell *cell) {m_Next = cell;}
- // members writin methods
-
- virtual void Layout(int w) {SetPos(0, 0); if (m_Next) m_Next -> Layout(w);};
- // 1. adjust cell's width according to the fact that maximal possible width is w.
- // (this has sense when working with horizontal lines, tables etc.)
- // 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height) members)
- // = place items to fit window, according to the width w
-
- virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) {if (m_Next) m_Next -> Draw(dc, x, y, view_y1, view_y2);}
- // renders the cell
-
- virtual void DrawInvisible(wxDC& dc, int x, int y) {if (m_Next) m_Next -> DrawInvisible(dc, x, y);};
- // proceed drawing actions in case the cell is not visible (scrolled out of screen).
- // This is needed to change fonts, colors and so on
-
- virtual const wxHtmlCell* Find(int condition, const void* param) const {if (m_Next) return m_Next -> Find(condition, param); else return NULL;}
- // This method returns pointer to the FIRST cell for that
- // the condition
- // is true. It first checks if the condition is true for this
- // cell and then calls m_Next -> Find(). (Note: it checks
- // all subcells if the cell is container)
- // Condition is unique condition identifier (see htmldefs.h)
- // (user-defined condition IDs should start from 10000)
- // and param is optional parameter
- // Example : m_Cell -> Find(wxHTML_COND_ISANCHOR, "news");
- // returns pointer to anchor news
-
- virtual void OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right);
- // This function is called when mouse button is clicked over the cell.
- // left, middle, right are flags indicating whether the button was or wasn't
- // pressed.
- // Parent is pointer to wxHtmlWindow that generated the event
- // HINT: if this handling is not enough for you you should use
- // wxHtmlBinderCell
-
- virtual bool AdjustPagebreak(int *pagebreak);
- // This method used to adjust pagebreak position. The parameter is
- // variable that contains y-coordinate of page break (= horizontal line that
- // should not be crossed by words, images etc.). If this cell cannot be divided
- // into two pieces (each one on another page) then it moves the pagebreak
- // few pixels up.
- //
- // Returned value : true if pagebreak was modified, false otherwise
- // Usage : while (container->AdjustPagebreak(&p)) {}
-
- void SetCanLiveOnPagebreak(bool can) {m_CanLiveOnPagebreak = can;}
- // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default
- // is true - the cell can be split on two pages
-
-
- protected:
- wxHtmlCell *m_Next;
- // pointer to the next cell
- wxHtmlContainerCell *m_Parent;
- // pointer to parent cell
- long m_Width, m_Height, m_Descent;
- // dimensions of fragment
- // m_Descent is used to position text&images..
- long m_PosX, m_PosY;
- // position where the fragment is drawn
- wxString m_Link;
- // destination address if this fragment is hypertext link, "" otherwise
- bool m_CanLiveOnPagebreak;
- // true if this cell can be placed on pagebreak, false otherwise
+public:
+ wxHtmlSelection()
+ : m_fromPos(wxDefaultPosition), m_toPos(wxDefaultPosition),
+ m_fromPrivPos(wxDefaultPosition), m_toPrivPos(wxDefaultPosition),
+ m_fromCell(NULL), m_toCell(NULL) {}
+
+ void Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
+ const wxPoint& toPos, const wxHtmlCell *toCell);
+ void Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell);
+
+ const wxHtmlCell *GetFromCell() const { return m_fromCell; }
+ const wxHtmlCell *GetToCell() const { return m_toCell; }
+
+ // these values are in absolute coordinates:
+ const wxPoint& GetFromPos() const { return m_fromPos; }
+ const wxPoint& GetToPos() const { return m_toPos; }
+
+ // these are From/ToCell's private data
+ const wxPoint& GetFromPrivPos() const { return m_fromPrivPos; }
+ const wxPoint& GetToPrivPos() const { return m_toPrivPos; }
+ void SetFromPrivPos(const wxPoint& pos) { m_fromPrivPos = pos; }
+ void SetToPrivPos(const wxPoint& pos) { m_toPrivPos = pos; }
+ void ClearPrivPos() { m_toPrivPos = m_fromPrivPos = wxDefaultPosition; }
+
+ bool IsEmpty() const
+ { return m_fromPos == wxDefaultPosition &&
+ m_toPos == wxDefaultPosition; }
+
+private:
+ wxPoint m_fromPos, m_toPos;
+ wxPoint m_fromPrivPos, m_toPrivPos;
+ const wxHtmlCell *m_fromCell, *m_toCell;
+};
+
+
+enum wxHtmlSelectionState
+{
+ wxHTML_SEL_OUT, // currently rendered cell is outside the selection
+ wxHTML_SEL_IN, // ... is inside selection
+ wxHTML_SEL_CHANGING // ... is the cell on which selection state changes
};
+// Selection state is passed to wxHtmlCell::Draw so that it can render itself
+// differently e.g. when inside text selection or outside it.
+class WXDLLIMPEXP_HTML wxHtmlRenderingState
+{
+public:
+ wxHtmlRenderingState() : m_selState(wxHTML_SEL_OUT) {}
+ void SetSelectionState(wxHtmlSelectionState s) { m_selState = s; }
+ wxHtmlSelectionState GetSelectionState() const { return m_selState; }
+ void SetFgColour(const wxColour& c) { m_fgColour = c; }
+ const wxColour& GetFgColour() const { return m_fgColour; }
+ void SetBgColour(const wxColour& c) { m_bgColour = c; }
+ const wxColour& GetBgColour() const { return m_bgColour; }
-//--------------------------------------------------------------------------------
-// Inherited cells:
-//--------------------------------------------------------------------------------
+private:
+ wxHtmlSelectionState m_selState;
+ wxColour m_fgColour, m_bgColour;
+};
-//--------------------------------------------------------------------------------
-// wxHtmlWordCell
-// Single word in input stream.
-//--------------------------------------------------------------------------------
+// HTML rendering customization. This class is used when rendering wxHtmlCells
+// as a callback:
+class WXDLLIMPEXP_HTML wxHtmlRenderingStyle
+{
+public:
+ virtual ~wxHtmlRenderingStyle() {}
+ virtual wxColour GetSelectedTextColour(const wxColour& clr) = 0;
+ virtual wxColour GetSelectedTextBgColour(const wxColour& clr) = 0;
+};
+
+// Standard style:
+class WXDLLIMPEXP_HTML wxDefaultHtmlRenderingStyle : public wxHtmlRenderingStyle
+{
+public:
+ virtual wxColour GetSelectedTextColour(const wxColour& clr);
+ virtual wxColour GetSelectedTextBgColour(const wxColour& clr);
+};
+
-class WXDLLEXPORT wxHtmlWordCell : public wxHtmlCell
+// Information given to cells when drawing them. Contains rendering state,
+// selection information and rendering style object that can be used to
+// customize the output.
+class WXDLLIMPEXP_HTML wxHtmlRenderingInfo
{
- protected:
- wxString m_Word;
+public:
+ wxHtmlRenderingInfo() : m_selection(NULL), m_style(NULL) {}
+
+ void SetSelection(wxHtmlSelection *s) { m_selection = s; }
+ wxHtmlSelection *GetSelection() const { return m_selection; }
- public:
- wxHtmlWordCell(const wxString& word, wxDC& dc);
- void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
+ void SetStyle(wxHtmlRenderingStyle *style) { m_style = style; }
+ wxHtmlRenderingStyle& GetStyle() { return *m_style; }
+
+ wxHtmlRenderingState& GetState() { return m_state; }
+
+protected:
+ wxHtmlSelection *m_selection;
+ wxHtmlRenderingStyle *m_style;
+ wxHtmlRenderingState m_state;
};
+// Flags for wxHtmlCell::FindCellByPos
+enum
+{
+ wxHTML_FIND_EXACT = 1,
+ wxHTML_FIND_NEAREST_BEFORE = 2,
+ wxHTML_FIND_NEAREST_AFTER = 4
+};
+// Superscript/subscript/normal script mode of a cell
+enum wxHtmlScriptMode
+{
+ wxHTML_SCRIPT_NORMAL,
+ wxHTML_SCRIPT_SUB,
+ wxHTML_SCRIPT_SUP
+};
-//--------------------------------------------------------------------------------
-// wxHtmlContainerCell
-// Container - it contains other cells. Basic of layout algorithm.
-//--------------------------------------------------------------------------------
-class WXDLLEXPORT wxHtmlContainerCell : public wxHtmlCell
+// ---------------------------------------------------------------------------
+// wxHtmlCell
+// Internal data structure. It represents fragments of parsed
+// HTML page - a word, picture, table, horizontal line and so
+// on. It is used by wxHtmlWindow to represent HTML page in
+// memory.
+// ---------------------------------------------------------------------------
+
+
+class WXDLLIMPEXP_HTML wxHtmlCell : public wxObject
{
- protected:
- int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom;
- // indentation of subcells. There is always m_Indent pixels
- // big space between given border of the container and the subcells
- // it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels
- int m_MinHeight, m_MinHeightAlign;
- // minimal height.
- int m_MaxLineWidth;
- // maximal widht of line. Filled during Layout()
- wxHtmlCell *m_Cells, *m_LastCell;
- // internal cells, m_Cells points to the first of them, m_LastCell to the last one.
- // (LastCell is needed only to speed-up InsertCell)
- int m_AlignHor, m_AlignVer;
- // alignment horizontal and vertical (left, center, right)
- int m_WidthFloat, m_WidthFloatUnits;
- // width float is used in adjustWidth
- bool m_UseBkColour;
- wxColour m_BkColour;
- // background color of this container
- bool m_UseBorder;
- wxColour m_BorderColour1, m_BorderColour2;
- // borders color of this container
-
- public:
- wxHtmlContainerCell(wxHtmlContainerCell *parent);
- ~wxHtmlContainerCell() {if (m_Cells) delete m_Cells;}
-
- virtual void Layout(int w);
- virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
- virtual void DrawInvisible(wxDC& dc, int x, int y);
- virtual bool AdjustPagebreak(int *pagebreak);
-
- void InsertCell(wxHtmlCell *cell);
- // insert cell at the end of m_Cells list
- void SetAlignHor(int al) {m_AlignHor = al;}
- int GetAlignHor() const {return m_AlignHor;}
- void SetAlignVer(int al) {m_AlignVer = al;}
- // sets horizontal/vertical alignment
- int GetAlignVer() const {return m_AlignVer;}
- void SetIndent(int i, int what, int units = wxHTML_UNITS_PIXELS);
- // sets left-border indentation. units is one of wxHTML_UNITS_* constants
- // what is combination of wxHTML_INDENT_*
- int GetIndent(int ind) const;
- // returns the indentation. ind is one of wxHTML_INDENT_* constants
- int GetIndentUnits(int ind) const;
- // returns type of value returned by GetIndent(ind)
- void SetAlign(const wxHtmlTag& tag);
- // sets alignment info based on given tag's params
- void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units;}
- void SetWidthFloat(const wxHtmlTag& tag, double pixel_scale = 1.0);
- // sets floating width adjustment
- // (examples : 32 percent of parent container,
- // -15 pixels percent (this means 100 % - 15 pixels)
- void SetMinHeight(int h, int align = wxHTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align;}
- // sets minimal height of this container.
- int GetMaxLineWidth() const {return m_MaxLineWidth;}
- // returns maximal line width in this container.
- // Call to this method is valid only after calling
- // Layout()
- void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = TRUE; m_BkColour = clr;}
- void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = TRUE; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
- virtual wxString GetLink(int x = 0, int y = 0) const;
- virtual const wxHtmlCell* Find(int condition, const void* param) const;
- virtual void OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right);
-
- wxHtmlCell* GetFirstCell() {return m_Cells;}
- // returns pointer to the first cell in container or NULL
+public:
+ wxHtmlCell();
+ virtual ~wxHtmlCell();
+
+ void SetParent(wxHtmlContainerCell *p) {m_Parent = p;}
+ wxHtmlContainerCell *GetParent() const {return m_Parent;}
+
+ int GetPosX() const {return m_PosX;}
+ int GetPosY() const {return m_PosY;}
+ int GetWidth() const {return m_Width;}
+
+ // Returns the maximum possible length of the cell.
+ // Call Layout at least once before using GetMaxTotalWidth()
+ virtual int GetMaxTotalWidth() const { return m_Width; }
+
+ int GetHeight() const {return m_Height;}
+ int GetDescent() const {return m_Descent;}
+
+ void SetScriptMode(wxHtmlScriptMode mode, long previousBase);
+ wxHtmlScriptMode GetScriptMode() const { return m_ScriptMode; }
+ long GetScriptBaseline() { return m_ScriptBaseline; }
+
+ // Formatting cells are not visible on the screen, they only alter
+ // renderer's state.
+ bool IsFormattingCell() const { return m_Width == 0 && m_Height == 0; }
+
+ const wxString& GetId() const { return m_id; }
+ void SetId(const wxString& id) { m_id = id; }
+
+ // returns the link associated with this cell. The position is position
+ // within the cell so it varies from 0 to m_Width, from 0 to m_Height
+ virtual wxHtmlLinkInfo* GetLink(int WXUNUSED(x) = 0,
+ int WXUNUSED(y) = 0) const
+ { return m_Link; }
+
+ // Returns cursor to be used when mouse is over the cell:
+ virtual wxCursor GetMouseCursor(wxHtmlWindowInterface *window) const;
+
+#if WXWIN_COMPATIBILITY_2_6
+ // this was replaced by GetMouseCursor, don't use in new code!
+ virtual wxCursor GetCursor() const;
+#endif
+
+ // return next cell among parent's cells
+ wxHtmlCell *GetNext() const {return m_Next;}
+ // returns first child cell (if there are any, i.e. if this is container):
+ virtual wxHtmlCell* GetFirstChild() const { return NULL; }
+
+ // members writing methods
+ virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;}
+ void SetLink(const wxHtmlLinkInfo& link);
+ void SetNext(wxHtmlCell *cell) {m_Next = cell;}
+
+ // 1. adjust cell's width according to the fact that maximal possible width
+ // is w. (this has sense when working with horizontal lines, tables
+ // etc.)
+ // 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height)
+ // members) = place items to fit window, according to the width w
+ virtual void Layout(int w);
+
+ // renders the cell
+ virtual void Draw(wxDC& WXUNUSED(dc),
+ int WXUNUSED(x), int WXUNUSED(y),
+ int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+ wxHtmlRenderingInfo& WXUNUSED(info)) {}
+
+ // proceed drawing actions in case the cell is not visible (scrolled out of
+ // screen). This is needed to change fonts, colors and so on.
+ virtual void DrawInvisible(wxDC& WXUNUSED(dc),
+ int WXUNUSED(x), int WXUNUSED(y),
+ wxHtmlRenderingInfo& WXUNUSED(info)) {}
+
+ // This method returns pointer to the FIRST cell for that
+ // the condition
+ // is true. It first checks if the condition is true for this
+ // cell and then calls m_Next->Find(). (Note: it checks
+ // all subcells if the cell is container)
+ // Condition is unique condition identifier (see htmldefs.h)
+ // (user-defined condition IDs should start from 10000)
+ // and param is optional parameter
+ // Example : m_Cell->Find(wxHTML_COND_ISANCHOR, "news");
+ // returns pointer to anchor news
+ virtual const wxHtmlCell* Find(int condition, const void* param) const;
+
+
+ // This function is called when mouse button is clicked over the cell.
+ // Returns true if a link is clicked, false otherwise.
+ //
+ // 'window' is pointer to wxHtmlWindowInterface of the window which
+ // generated the event.
+ // HINT: if this handling is not enough for you you should use
+ // wxHtmlWidgetCell
+ virtual bool ProcessMouseClick(wxHtmlWindowInterface *window,
+ const wxPoint& pos,
+ const wxMouseEvent& event);
+
+#if WXWIN_COMPATIBILITY_2_6
+ // this was replaced by ProcessMouseClick, don't use in new code!
+ virtual void OnMouseClick(wxWindow *window,
+ int x, int y, const wxMouseEvent& event);
+#endif
+
+ // This method used to adjust pagebreak position. The parameter is variable
+ // that contains y-coordinate of page break (= horizontal line that should
+ // not be crossed by words, images etc.). If this cell cannot be divided
+ // into two pieces (each one on another page) then it moves the pagebreak
+ // few pixels up.
+ //
+ // Returned value : true if pagebreak was modified, false otherwise
+ // Usage : while (container->AdjustPagebreak(&p)) {}
+ virtual bool AdjustPagebreak(int *pagebreak,
+ wxArrayInt& known_pagebreaks) const;
+
+ // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default
+ // is true - the cell can be split on two pages
+ void SetCanLiveOnPagebreak(bool can) { m_CanLiveOnPagebreak = can; }
+
+ // Can the line be broken before this cell?
+ virtual bool IsLinebreakAllowed() const
+ { return !IsFormattingCell(); }
+
+ // Returns true for simple == terminal cells, i.e. not composite ones.
+ // This if for internal usage only and may disappear in future versions!
+ virtual bool IsTerminalCell() const { return true; }
+
+ // Find a cell inside this cell positioned at the given coordinates
+ // (relative to this's positions). Returns NULL if no such cell exists.
+ // The flag can be used to specify whether to look for terminal or
+ // nonterminal cells or both. In either case, returned cell is deepest
+ // cell in cells tree that contains [x,y].
+ virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
+ unsigned flags = wxHTML_FIND_EXACT) const;
+
+ // Returns absolute position of the cell on HTML canvas.
+ // If rootCell is provided, then it's considered to be the root of the
+ // hierarchy and the returned value is relative to it.
+ wxPoint GetAbsPos(wxHtmlCell *rootCell = NULL) const;
+
+ // Returns root cell of the hierarchy (i.e. grand-grand-...-parent that
+ // doesn't have a parent itself)
+ wxHtmlCell *GetRootCell() const;
+
+ // Returns first (last) terminal cell inside this cell. It may return NULL,
+ // but it is rare -- only if there are no terminals in the tree.
+ virtual wxHtmlCell *GetFirstTerminal() const
+ { return wxConstCast(this, wxHtmlCell); }
+ virtual wxHtmlCell *GetLastTerminal() const
+ { return wxConstCast(this, wxHtmlCell); }
+
+ // Returns cell's depth, i.e. how far under the root cell it is
+ // (if it is the root, depth is 0)
+ unsigned GetDepth() const;
+
+ // Returns true if the cell appears before 'cell' in natural order of
+ // cells (= as they are read). If cell A is (grand)parent of cell B,
+ // then both A.IsBefore(B) and B.IsBefore(A) always return true.
+ bool IsBefore(wxHtmlCell *cell) const;
+
+ // Converts the cell into text representation. If sel != NULL then
+ // only part of the cell inside the selection is converted.
+ virtual wxString ConvertToText(wxHtmlSelection *WXUNUSED(sel)) const
+ { return wxEmptyString; }
+
+protected:
+ // pointer to the next cell
+ wxHtmlCell *m_Next;
+ // pointer to parent cell
+ wxHtmlContainerCell *m_Parent;
+
+ // dimensions of fragment (m_Descent is used to position text & images)
+ long m_Width, m_Height, m_Descent;
+ // position where the fragment is drawn:
+ long m_PosX, m_PosY;
+
+ // superscript/subscript/normal:
+ wxHtmlScriptMode m_ScriptMode;
+ long m_ScriptBaseline;
+
+ // destination address if this fragment is hypertext link, NULL otherwise
+ wxHtmlLinkInfo *m_Link;
+ // true if this cell can be placed on pagebreak, false otherwise
+ bool m_CanLiveOnPagebreak;
+ // unique identifier of the cell, generated from "id" property of tags
+ wxString m_id;
+
+ DECLARE_ABSTRACT_CLASS(wxHtmlCell)
+ DECLARE_NO_COPY_CLASS(wxHtmlCell)
};
+// ----------------------------------------------------------------------------
+// Inherited cells:
+// ----------------------------------------------------------------------------
+
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxHtmlWordCell
+// Single word in input stream.
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_HTML wxHtmlWordCell : public wxHtmlCell
+{
+public:
+ wxHtmlWordCell(const wxString& word, const wxDC& dc);
+ void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+ wxHtmlRenderingInfo& info);
+ virtual wxCursor GetMouseCursor(wxHtmlWindowInterface *window) const;
+ virtual wxString ConvertToText(wxHtmlSelection *sel) const;
+ bool IsLinebreakAllowed() const { return m_allowLinebreak; }
+
+ void SetPreviousWord(wxHtmlWordCell *cell);
+
+protected:
+ virtual wxString GetAllAsText() const
+ { return m_Word; }
+ virtual wxString GetPartAsText(int begin, int end) const
+ { return m_Word.Mid(begin, end - begin); }
+
+ void SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const;
+ void Split(const wxDC& dc,
+ const wxPoint& selFrom, const wxPoint& selTo,
+ unsigned& pos1, unsigned& pos2) const;
+
+ wxString m_Word;
+ bool m_allowLinebreak;
+
+ DECLARE_ABSTRACT_CLASS(wxHtmlWordCell)
+ DECLARE_NO_COPY_CLASS(wxHtmlWordCell)
+};
+
+
+// wxHtmlWordCell specialization for storing text fragments with embedded
+// '\t's; these differ from normal words in that the displayed text is
+// different from the text copied to clipboard
+class WXDLLIMPEXP_HTML wxHtmlWordWithTabsCell : public wxHtmlWordCell
+{
+public:
+ wxHtmlWordWithTabsCell(const wxString& word,
+ const wxString& wordOrig,
+ size_t linepos,
+ const wxDC& dc)
+ : wxHtmlWordCell(word, dc),
+ m_wordOrig(wordOrig),
+ m_linepos(linepos)
+ {}
+
+protected:
+ virtual wxString GetAllAsText() const;
+ virtual wxString GetPartAsText(int begin, int end) const;
+
+ wxString m_wordOrig;
+ size_t m_linepos;
+};
+
+
+// Container contains other cells, thus forming tree structure of rendering
+// elements. Basic code of layout algorithm is contained in this class.
+class WXDLLIMPEXP_HTML wxHtmlContainerCell : public wxHtmlCell
+{
+public:
+ wxHtmlContainerCell(wxHtmlContainerCell *parent);
+ virtual ~wxHtmlContainerCell();
+
+ virtual void Layout(int w);
+ virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+ wxHtmlRenderingInfo& info);
+ virtual void DrawInvisible(wxDC& dc, int x, int y,
+ wxHtmlRenderingInfo& info);
+/* virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const;*/
+ virtual bool AdjustPagebreak(int *pagebreak, wxArrayInt& known_pagebreaks) const;
+
+ // insert cell at the end of m_Cells list
+ void InsertCell(wxHtmlCell *cell);
+
+ // sets horizontal/vertical alignment
+ void SetAlignHor(int al) {m_AlignHor = al; m_LastLayout = -1;}
+ int GetAlignHor() const {return m_AlignHor;}
+ void SetAlignVer(int al) {m_AlignVer = al; m_LastLayout = -1;}
+ int GetAlignVer() const {return m_AlignVer;}
+
+ // sets left-border indentation. units is one of wxHTML_UNITS_* constants
+ // what is combination of wxHTML_INDENT_*
+ void SetIndent(int i, int what, int units = wxHTML_UNITS_PIXELS);
+ // returns the indentation. ind is one of wxHTML_INDENT_* constants
+ int GetIndent(int ind) const;
+ // returns type of value returned by GetIndent(ind)
+ int GetIndentUnits(int ind) const;
+
+ // sets alignment info based on given tag's params
+ void SetAlign(const wxHtmlTag& tag);
+ // sets floating width adjustment
+ // (examples : 32 percent of parent container,
+ // -15 pixels percent (this means 100 % - 15 pixels)
+ void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units; m_LastLayout = -1;}
+ void SetWidthFloat(const wxHtmlTag& tag, double pixel_scale = 1.0);
+ // sets minimal height of this container.
+ void SetMinHeight(int h, int align = wxHTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align; m_LastLayout = -1;}
+
+ void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = true; m_BkColour = clr;}
+ // returns background colour (of wxNullColour if none set), so that widgets can
+ // adapt to it:
+ wxColour GetBackgroundColour();
+ void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = true; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
+ virtual wxHtmlLinkInfo* GetLink(int x = 0, int y = 0) const;
+ virtual const wxHtmlCell* Find(int condition, const void* param) const;
+
+#if WXWIN_COMPATIBILITY_2_6
+ // this was replaced by ProcessMouseClick, don't use in new code!
+ virtual void OnMouseClick(wxWindow *window,
+ int x, int y, const wxMouseEvent& event);
+#endif
+ virtual bool ProcessMouseClick(wxHtmlWindowInterface *window,
+ const wxPoint& pos,
+ const wxMouseEvent& event);
+
+ virtual wxHtmlCell* GetFirstChild() const { return m_Cells; }
+
+ // returns last child cell:
+ wxHtmlCell* GetLastChild() const { return m_LastCell; }
+
+ // see comment in wxHtmlCell about this method
+ virtual bool IsTerminalCell() const { return false; }
+
+ virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
+ unsigned flags = wxHTML_FIND_EXACT) const;
+
+ virtual wxHtmlCell *GetFirstTerminal() const;
+ virtual wxHtmlCell *GetLastTerminal() const;
+
+
+ // Removes indentation on top or bottom of the container (i.e. above or
+ // below first/last terminal cell). For internal use only.
+ virtual void RemoveExtraSpacing(bool top, bool bottom);
+
+ // Returns the maximum possible length of the container.
+ // Call Layout at least once before using GetMaxTotalWidth()
+ virtual int GetMaxTotalWidth() const { return m_MaxTotalWidth; }
+
+protected:
+ void UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
+ wxHtmlCell *cell) const;
+ void UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
+ wxHtmlCell *cell) const;
+
+protected:
+ int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom;
+ // indentation of subcells. There is always m_Indent pixels
+ // big space between given border of the container and the subcells
+ // it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels
+ int m_MinHeight, m_MinHeightAlign;
+ // minimal height.
+ wxHtmlCell *m_Cells, *m_LastCell;
+ // internal cells, m_Cells points to the first of them, m_LastCell to the last one.
+ // (LastCell is needed only to speed-up InsertCell)
+ int m_AlignHor, m_AlignVer;
+ // alignment horizontal and vertical (left, center, right)
+ int m_WidthFloat, m_WidthFloatUnits;
+ // width float is used in adjustWidth
+ bool m_UseBkColour;
+ wxColour m_BkColour;
+ // background color of this container
+ bool m_UseBorder;
+ wxColour m_BorderColour1, m_BorderColour2;
+ // borders color of this container
+ int m_LastLayout;
+ // if != -1 then call to Layout may be no-op
+ // if previous call to Layout has same argument
+ int m_MaxTotalWidth;
+ // Maximum possible length if ignoring line wrap
+
+
+ DECLARE_ABSTRACT_CLASS(wxHtmlContainerCell)
+ DECLARE_NO_COPY_CLASS(wxHtmlContainerCell)
+};
+
+
+
+// ---------------------------------------------------------------------------
// wxHtmlColourCell
// Color changer.
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
-class WXDLLEXPORT wxHtmlColourCell : public wxHtmlCell
+class WXDLLIMPEXP_HTML wxHtmlColourCell : public wxHtmlCell
{
- public:
- wxColour m_Colour;
- unsigned m_Flags;
-
- wxHtmlColourCell(wxColour clr, int flags = wxHTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;}
- virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
- virtual void DrawInvisible(wxDC& dc, int x, int y);
+public:
+ wxHtmlColourCell(const wxColour& clr, int flags = wxHTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;}
+ virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+ wxHtmlRenderingInfo& info);
+ virtual void DrawInvisible(wxDC& dc, int x, int y,
+ wxHtmlRenderingInfo& info);
+
+protected:
+ wxColour m_Colour;
+ unsigned m_Flags;
+
+ DECLARE_ABSTRACT_CLASS(wxHtmlColourCell)
+ DECLARE_NO_COPY_CLASS(wxHtmlColourCell)
};
// Sets actual font used for text rendering
//--------------------------------------------------------------------------------
-class WXDLLEXPORT wxHtmlFontCell : public wxHtmlCell
+class WXDLLIMPEXP_HTML wxHtmlFontCell : public wxHtmlCell
{
- public:
- wxFont m_Font;
-
- wxHtmlFontCell(wxFont *font) : wxHtmlCell() { m_Font = (*font); }
- virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
- virtual void DrawInvisible(wxDC& dc, int x, int y);
+public:
+ wxHtmlFontCell(wxFont *font) : wxHtmlCell() { m_Font = (*font); }
+ virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+ wxHtmlRenderingInfo& info);
+ virtual void DrawInvisible(wxDC& dc, int x, int y,
+ wxHtmlRenderingInfo& info);
+
+protected:
+ wxFont m_Font;
+
+ DECLARE_ABSTRACT_CLASS(wxHtmlFontCell)
+ DECLARE_NO_COPY_CLASS(wxHtmlFontCell)
};
// (buttons, input boxes etc.)
//--------------------------------------------------------------------------------
-class WXDLLEXPORT wxHtmlWidgetCell : public wxHtmlCell
+class WXDLLIMPEXP_HTML wxHtmlWidgetCell : public wxHtmlCell
{
- protected:
- wxWindow* m_Wnd;
- int m_WidthFloat;
- // width float is used in adjustWidth (it is in percents)
-
- public:
- wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
- // !!! wnd must have correct parent!
- // if w != 0 then the m_Wnd has 'floating' width - it adjust
- // it's width according to parent container's width
- // (w is percent of parent's width)
- ~wxHtmlWidgetCell() {if (m_Wnd) m_Wnd -> Destroy(); }
- virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
- virtual void DrawInvisible(wxDC& dc, int x, int y);
- virtual void Layout(int w);
+public:
+ // !!! wnd must have correct parent!
+ // if w != 0 then the m_Wnd has 'floating' width - it adjust
+ // it's width according to parent container's width
+ // (w is percent of parent's width)
+ wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
+ virtual ~wxHtmlWidgetCell() { m_Wnd->Destroy(); }
+ virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+ wxHtmlRenderingInfo& info);
+ virtual void DrawInvisible(wxDC& dc, int x, int y,
+ wxHtmlRenderingInfo& info);
+ virtual void Layout(int w);
+
+protected:
+ wxWindow* m_Wnd;
+ int m_WidthFloat;
+ // width float is used in adjustWidth (it is in percents)
+
+ DECLARE_ABSTRACT_CLASS(wxHtmlWidgetCell)
+ DECLARE_NO_COPY_CLASS(wxHtmlWidgetCell)
};
-#endif
+//--------------------------------------------------------------------------------
+// wxHtmlLinkInfo
+// Internal data structure. It represents hypertext link
+//--------------------------------------------------------------------------------
+
+class WXDLLIMPEXP_HTML wxHtmlLinkInfo : public wxObject
+{
+public:
+ wxHtmlLinkInfo() : wxObject()
+ { m_Href = m_Target = wxEmptyString; m_Event = NULL, m_Cell = NULL; }
+ wxHtmlLinkInfo(const wxString& href, const wxString& target = wxEmptyString) : wxObject()
+ { m_Href = href; m_Target = target; m_Event = NULL, m_Cell = NULL; }
+ wxHtmlLinkInfo(const wxHtmlLinkInfo& l) : wxObject()
+ { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event;
+ m_Cell = l.m_Cell; }
+ wxHtmlLinkInfo& operator=(const wxHtmlLinkInfo& l)
+ { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event;
+ m_Cell = l.m_Cell; return *this; }
+
+ void SetEvent(const wxMouseEvent *e) { m_Event = e; }
+ void SetHtmlCell(const wxHtmlCell *e) { m_Cell = e; }
+
+ wxString GetHref() const { return m_Href; }
+ wxString GetTarget() const { return m_Target; }
+ const wxMouseEvent* GetEvent() const { return m_Event; }
+ const wxHtmlCell* GetHtmlCell() const { return m_Cell; }
+
+private:
+ wxString m_Href, m_Target;
+ const wxMouseEvent *m_Event;
+ const wxHtmlCell *m_Cell;
+};
+
+
+
+// ----------------------------------------------------------------------------
+// wxHtmlTerminalCellsInterator
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_HTML wxHtmlTerminalCellsInterator
+{
+public:
+ wxHtmlTerminalCellsInterator(const wxHtmlCell *from, const wxHtmlCell *to)
+ : m_to(to), m_pos(from) {}
+
+ operator bool() const { return m_pos != NULL; }
+ const wxHtmlCell* operator++();
+ const wxHtmlCell* operator->() const { return m_pos; }
+ const wxHtmlCell* operator*() const { return m_pos; }
+
+private:
+ const wxHtmlCell *m_to, *m_pos;
+};
+
+
+
+#endif // wxUSE_HTML
#endif // _WX_HTMLCELL_H_
projects / wxWidgets.git / blobdiff