// 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__
-#pragma interface "htmlcell.h"
+#pragma interface
#endif
#include "wx/defs.h"
#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;
- // 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;};
-
+ 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;}
- virtual wxString GetLink(int x = 0, int y = 0) const {return m_Link;}
+ virtual wxHtmlLinkInfo* 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 SetLink(const wxHtmlLinkInfo& 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);};
+ virtual void Layout(int 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);}
+ virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
// renders the cell
- virtual void DrawInvisible(wxDC& dc, int x, int y) {if (m_Next) m_Next -> DrawInvisible(dc, x, y);};
+ virtual void DrawInvisible(wxDC& dc, int x, int 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;}
+
+ virtual const wxHtmlCell* Find(int condition, const void* param) const;
// This method returns pointer to the FIRST cell for that
// the condition
// is true. It first checks if the condition is true for this
// 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");
+ // 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);
+ virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
// 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) const;
+ // 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
+ wxHtmlLinkInfo *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
+
};
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);
+
+ 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;}
+ ~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;
+
void InsertCell(wxHtmlCell *cell);
// insert cell at the end of m_Cells list
- void SetAlignHor(int al) {m_AlignHor = al;}
+ void SetAlignHor(int al) {m_AlignHor = al; m_LastLayout = -1;}
int GetAlignHor() const {return m_AlignHor;}
- void SetAlignVer(int al) {m_AlignVer = al;}
+ void SetAlignVer(int al) {m_AlignVer = al; m_LastLayout = -1;}
// 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_*
+ 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 HTML_INDENT_* constants
+ // 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);
+ 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 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;}
+ void SetMinHeight(int h, int align = wxHTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align; m_LastLayout = -1;}
// 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 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, bool left, bool middle, bool right);
+ virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
- wxHtmlCell* GetFirstCell() {return m_Cells;}
+ wxHtmlCell* GetFirstCell() const {return m_Cells;}
// returns pointer to the first cell in container or NULL
+
+ 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;}
+ 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;
-
- wxHtmlFontCell(wxFont *font) : wxHtmlCell() {m_Font = 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);
+
+ 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)
+ ~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)
+};
-#endif // __HTMLCELL_H__
-#endif
+//--------------------------------------------------------------------------------
+// wxHtmlLinkInfo
+// Internal data structure. It represents hypertext link
+//--------------------------------------------------------------------------------
+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)
+ { 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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