edbd0635f2
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4906 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
308 lines
13 KiB
C++
308 lines
13 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: htmlcell.h
|
|
// 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 _WX_HTMLCELL_H_
|
|
#define _WX_HTMLCELL_H_
|
|
|
|
#ifdef __GNUG__
|
|
#pragma interface
|
|
#endif
|
|
|
|
#include "wx/defs.h"
|
|
|
|
#if wxUSE_HTML
|
|
|
|
#include "wx/html/htmltag.h"
|
|
#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 WXDLLEXPORT wxHtmlCell : public wxObject
|
|
{
|
|
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
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// Inherited cells:
|
|
//--------------------------------------------------------------------------------
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// wxHtmlWordCell
|
|
// Single word in input stream.
|
|
//--------------------------------------------------------------------------------
|
|
|
|
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);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// wxHtmlContainerCell
|
|
// Container - it contains other cells. Basic of layout algorithm.
|
|
//--------------------------------------------------------------------------------
|
|
|
|
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);
|
|
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
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// wxHtmlColourCell
|
|
// Color changer.
|
|
//--------------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT 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);
|
|
};
|
|
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// wxHtmlFontCell
|
|
// Sets actual font used for text rendering
|
|
//--------------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT 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);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// wxHtmlwidgetCell
|
|
// This cell is connected with wxWindow object
|
|
// You can use it to insert windows into HTML page
|
|
// (buttons, input boxes etc.)
|
|
//--------------------------------------------------------------------------------
|
|
|
|
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() {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);
|
|
};
|
|
|
|
|
|
|
|
#endif
|
|
|
|
#endif // _WX_HTMLCELL_H_
|
|
|