// Purpose: wxHtmlCell class is used by wxHtmlWindow/wxHtmlWinParser
// as a basic visual element of HTML page
// Author: Vaclav Slavik
+// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __HTMLCELL_H__
-#define __HTMLCELL_H__
+#ifndef _WX_HTMLCELL_H_
+#define _WX_HTMLCELL_H_
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "htmlcell.h"
#endif
#include "wx/html/htmldefs.h"
#include "wx/window.h"
-class wxHtmlCell;
-class wxHtmlContainerCell;
+
+class WXDLLEXPORT wxHtmlLinkInfo;
+class WXDLLEXPORT wxHtmlCell;
+class WXDLLEXPORT wxHtmlContainerCell;
//--------------------------------------------------------------------------------
// wxHtmlCell
class WXDLLEXPORT wxHtmlCell : public wxObject
{
- protected:
- wxHtmlCell *m_Next;
- // pointer to the next cell
- wxHtmlContainerCell *m_Parent;
+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;}
+ int GetHeight() const {return m_Height;}
+ int GetDescent() const {return m_Descent;}
+
+ 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; }
+
+ // members access methods
+ wxHtmlCell *GetNext() const {return m_Next;}
+
+ // 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)) {}
+
+ // 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)) {}
+
+ // 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.
+ //
+ // Parent is pointer to wxHtmlWindow that generated the event
+ // HINT: if this handling is not enough for you you should use
+ // wxHtmlWidgetCell
+ virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
+
+ // 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) 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; }
+
+ // Returns y-coordinates that contraint the cell, i.e. left is highest
+ // and right lowest coordinate such that the cell lays between then.
+ // Note: this method does not return meaningful values if you haven't
+ // called Layout() before!
+ virtual void GetHorizontalConstraints(int *left, int *right) const;
+
+ // 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 the terminal cell inside this cell at the given position (relative
+ // to this cell)
+ //
+ // Returns NULL if not found
+ virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y) const;
+
+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
-
- public:
- wxHtmlCell() : wxObject() {m_Next = NULL; m_Parent = NULL; m_Width = m_Height = m_Descent = 0;};
- 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 x = 0, int 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(HTML_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
+ 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
+ wxHtmlLinkInfo *m_Link;
+ // destination address if this fragment is hypertext link, NULL otherwise
+ bool m_CanLiveOnPagebreak;
+ // true if this cell can be placed on pagebreak, false otherwise
+ wxString m_id;
+ // unique identifier of the cell, generated from "id" property of tags
};
class WXDLLEXPORT wxHtmlWordCell : public wxHtmlCell
{
- protected:
- wxString m_Word;
+public:
+ wxHtmlWordCell(const wxString& word, wxDC& dc);
+ void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
- public:
- wxHtmlWordCell(const wxString& word, wxDC& dc);
- void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
+protected:
+ wxString m_Word;
};
class WXDLLEXPORT wxHtmlContainerCell : public wxHtmlCell
{
- 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);
-
- 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 = HTML_UNITS_PIXELS);
- // sets left-border indentation. units is one of HTML_UNITS_* constants
- // what is combination of HTML_INDENT_*
- int GetIndent(int ind) const;
- // returns the indentation. ind is one of HTML_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);
- // sets floating width adjustment
- // (examples : 32 percent of parent container,
- // -15 pixels percent (this means 100 % - 15 pixels)
- void SetMinHeight(int h, int align = HTML_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:
+ wxHtmlContainerCell(wxHtmlContainerCell *parent);
+ ~wxHtmlContainerCell();
+
+ 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) 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;
+ virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
+ virtual void GetHorizontalConstraints(int *left, int *right) const;
+
+ // returns pointer to the first cell in container or NULL
+ wxHtmlCell* GetFirstCell() const {return m_Cells;}
+
+ // see comment in wxHtmlCell about this method
+ virtual bool IsTerminalCell() const { return FALSE; }
+
+ virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y) 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
};
class WXDLLEXPORT wxHtmlColourCell : public wxHtmlCell
{
- public:
- wxColour m_Colour;
- unsigned m_Flags;
-
- wxHtmlColourCell(wxColour clr, int flags = HTML_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);
+ virtual void DrawInvisible(wxDC& dc, int x, int y);
+
+protected:
+ wxColour m_Colour;
+ unsigned m_Flags;
};
class WXDLLEXPORT wxHtmlFontCell : public wxHtmlCell
{
- public:
- wxFont *m_Font;
+public:
+ 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);
- 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);
+protected:
+ wxFont m_Font;
};
class WXDLLEXPORT 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)
- 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);
+ ~wxHtmlWidgetCell() { 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);
+
+protected:
+ wxWindow* m_Wnd;
+ int m_WidthFloat;
+ // width float is used in adjustWidth (it is in percents)
};
+//--------------------------------------------------------------------------------
+// wxHtmlLinkInfo
+// Internal data structure. It represents hypertext link
+//--------------------------------------------------------------------------------
-#endif // __HTMLCELL_H__
-
-#endif
-
-
+class WXDLLEXPORT 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;
+};
+#endif // wxUSE_HTML
+#endif // _WX_HTMLCELL_H_
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