src/html/htmlcell.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        htmlcell.cpp
// Purpose:     wxHtmlCell - basic element of HTML output
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation
#endif

#include "wx/wxprec.h"

#include "wx/defs.h"

#if wxUSE_HTML && wxUSE_STREAMS

#ifdef __BORDLANDC__
#pragma hdrstop
#endif

#ifndef WXPRECOMP
    #include "wx/brush.h"
    #include "wx/colour.h"
    #include "wx/dc.h"
#endif

#include "wx/html/htmlcell.h"
#include "wx/html/htmlwin.h"
#include <stdlib.h>


//-----------------------------------------------------------------------------
// wxHtmlCell
//-----------------------------------------------------------------------------

wxHtmlCell::wxHtmlCell() : wxObject()
{
    m_Next = NULL;
    m_Parent = NULL;
    m_Width = m_Height = m_Descent = 0;
    m_CanLiveOnPagebreak = TRUE;
    m_Link = NULL;
}

wxHtmlCell::~wxHtmlCell()
{
    if (m_Link) delete m_Link;
}


void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
                              const wxMouseEvent& event)
{
    wxHtmlLinkInfo *lnk = GetLink(x, y);
    if (lnk != NULL)
    {
        wxHtmlLinkInfo lnk2(*lnk);
        lnk2.SetEvent(&event);
        lnk2.SetHtmlCell(this);
        ((wxHtmlWindow*)parent)->OnLinkClicked(lnk2);
        // note : this overcasting is legal because parent is *always* wxHtmlWindow
    }
}


bool wxHtmlCell::AdjustPagebreak(int *pagebreak) const
{
    if ((!m_CanLiveOnPagebreak) &&
                m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
	{
        *pagebreak = m_PosY;
        return TRUE;
    }
    else
        return FALSE;
}


void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
{
    if (m_Link) delete m_Link;
    m_Link = NULL;
    if (link.GetHref() != wxEmptyString)
        m_Link = new wxHtmlLinkInfo(link);
}


void wxHtmlCell::Layout(int w)
{
    SetPos(0, 0);
}


const wxHtmlCell* wxHtmlCell::Find(int condition, const void* param) const
{
    return NULL;
}


//-----------------------------------------------------------------------------
// wxHtmlWordCell
//-----------------------------------------------------------------------------

wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
{
    m_Word = word;
    dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
    SetCanLiveOnPagebreak(FALSE);
}


void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
{
    dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
}


//-----------------------------------------------------------------------------
// wxHtmlContainerCell
//-----------------------------------------------------------------------------


wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
{
    m_Cells = m_LastCell = NULL;
    m_Parent = parent;
    if (m_Parent) m_Parent->InsertCell(this);
    m_AlignHor = wxHTML_ALIGN_LEFT;
    m_AlignVer = wxHTML_ALIGN_BOTTOM;
    m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
    m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
    m_UseBkColour = FALSE;
    m_UseBorder = FALSE;
    m_MinHeight = 0;
    m_MinHeightAlign = wxHTML_ALIGN_TOP;
    m_LastLayout = -1;
}

wxHtmlContainerCell::~wxHtmlContainerCell()
{
    wxHtmlCell *cell = m_Cells;
    while ( cell )
    {
        wxHtmlCell *cellNext = cell->GetNext();
        delete cell;
        cell = cellNext;
    }
}


void wxHtmlContainerCell::SetIndent(int i, int what, int units)
{
    int val = (units == wxHTML_UNITS_PIXELS) ? i : -i;
    if (what & wxHTML_INDENT_LEFT) m_IndentLeft = val;
    if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
    if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
    if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
    m_LastLayout = -1;
}


int wxHtmlContainerCell::GetIndent(int ind) const
{
    if (ind & wxHTML_INDENT_LEFT) return m_IndentLeft;
    else if (ind & wxHTML_INDENT_RIGHT) return m_IndentRight;
    else if (ind & wxHTML_INDENT_TOP) return m_IndentTop;
    else if (ind & wxHTML_INDENT_BOTTOM) return m_IndentBottom;
    else return -1; /* BUG! Should not be called... */
}


int wxHtmlContainerCell::GetIndentUnits(int ind) const
{
    bool p = FALSE;
    if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
    else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
    else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
    else if (ind & wxHTML_INDENT_BOTTOM) p = m_IndentBottom < 0;
    if (p) return wxHTML_UNITS_PERCENT;
    else return wxHTML_UNITS_PIXELS;
}


bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const
{
    if (!m_CanLiveOnPagebreak)
        return wxHtmlCell::AdjustPagebreak(pagebreak);

    else
    {
        wxHtmlCell *c = GetFirstCell();
        bool rt = FALSE;
        int pbrk = *pagebreak - m_PosY;

        while (c)
	    {
            if (c->AdjustPagebreak(&pbrk))
                rt = TRUE;
            c = c->GetNext();
        }
        if (rt)
            *pagebreak = pbrk + m_PosY;
        return rt;
    }
}


void wxHtmlContainerCell::Layout(int w)
{
    if (m_LastLayout == w)
    {
        wxHtmlCell::Layout(w);
        return;
    }

    wxHtmlCell *cell = m_Cells, *line = m_Cells;
    long xpos = 0, ypos = m_IndentTop;
    int xdelta = 0, ybasicpos = 0, ydiff;
    int s_width, s_indent;
    int ysizeup = 0, ysizedown = 0;
    int MaxLineWidth = 0;
    int xcnt = 0;


    /*

    WIDTH ADJUSTING :

    */

    if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
    {
        if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
        else m_Width = m_WidthFloat * w / 100;
    }
    else
    {
        if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
        else m_Width = m_WidthFloat;
    }

    if (m_Cells)
    {
        int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
        int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
            cell->Layout(m_Width - (l + r));
    }

    /*

    LAYOUTING :

    */

    // adjust indentation:
    s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
    s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);

    // my own layouting:
    while (cell != NULL)
    {
        switch (m_AlignVer)
	    {
            case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;
            case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell->GetHeight(); break;
            case wxHTML_ALIGN_CENTER :   ybasicpos = - cell->GetHeight() / 2; break;
        }
        ydiff = cell->GetHeight() + ybasicpos;

        if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
        if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());

        cell->SetPos(xpos, ybasicpos + cell->GetDescent());
        xpos += cell->GetWidth();
        cell = cell->GetNext();
        xcnt++;

        // force new line if occured:
        if ((cell == NULL) || (xpos + cell->GetWidth() > s_width))
	    {
            if (xpos > MaxLineWidth) MaxLineWidth = xpos;
            if (ysizeup < 0) ysizeup = 0;
            if (ysizedown < 0) ysizedown = 0;
            switch (m_AlignHor) {
                case wxHTML_ALIGN_LEFT :
                case wxHTML_ALIGN_JUSTIFY :
                         xdelta = 0;
                         break;
                case wxHTML_ALIGN_RIGHT :
                         xdelta = 0 + (s_width - xpos);
                         break;
                case wxHTML_ALIGN_CENTER :
                         xdelta = 0 + (s_width - xpos) / 2;
                         break;
            }
            if (xdelta < 0) xdelta = 0;
            xdelta += s_indent;

            ypos += ysizeup;

            if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
                while (line != cell)
		        {
                    line->SetPos(line->GetPosX() + xdelta,
                                   ypos + line->GetPosY());
                    line = line->GetNext();
                }
            else
            {
                int counter = 0;
                int step = (s_width - xpos);
                if (step < 0) step = 0;
                xcnt--;
                if (xcnt > 0) while (line != cell)
		        {
                    line->SetPos(line->GetPosX() + s_indent +
                                   (counter++ * step / xcnt),
                                   ypos + line->GetPosY());
                    line = line->GetNext();
                }
                xcnt++;
            }

            ypos += ysizedown;
            xpos = xcnt = 0;
            ysizeup = ysizedown = 0;
            line = cell;
        }
    }

    // setup height & width, depending on container layout:
    m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;

    if (m_Height < m_MinHeight)
    {
        if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
	    {
            int diff = m_MinHeight - m_Height;
            if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
            cell = m_Cells;
            while (cell)
	        {
                cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
                cell = cell->GetNext();
            }
        }
        m_Height = m_MinHeight;
    }

    MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
    if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;

    m_LastLayout = w;

    wxHtmlCell::Layout(w);
}


#define mMin(a, b) (((a) < (b)) ? (a) : (b))
#define mMax(a, b) (((a) < (b)) ? (b) : (a))

void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
{
    // container visible, draw it:
    if ((y + m_PosY < view_y2) && (y + m_PosY + m_Height > view_y1))
    {

        if (m_UseBkColour)
	    {
            wxBrush myb = wxBrush(m_BkColour, wxSOLID);

            int real_y1 = mMax(y + m_PosY, view_y1);
            int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);

            dc.SetBrush(myb);
            dc.SetPen(*wxTRANSPARENT_PEN);
            dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
        }

        if (m_UseBorder)
	    {
            wxPen mypen1(m_BorderColour1, 1, wxSOLID);
            wxPen mypen2(m_BorderColour2, 1, wxSOLID);

            dc.SetPen(mypen1);
            dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1);
            dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY);
            dc.SetPen(mypen2);
            dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX +  m_Width - 1, y + m_PosY + m_Height - 1);
            dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
        }

        if (m_Cells)
        {
            for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
                cell->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2);
        }
    }
    // container invisible, just proceed font+color changing:
    else
    {
        if (m_Cells)
        {
            for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
                cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
        }
    }
}


void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y)
{
    if (m_Cells)
    {
        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
            cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
    }
}


wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
{
    wxHtmlCell *c = m_Cells;
    int cx, cy, cw, ch;

    while (c)
    {
        cx = c->GetPosX(), cy = c->GetPosY();
        cw = c->GetWidth(), ch = c->GetHeight();
        if ((x >= cx) && (x < cx + cw) && (y >= cy) && (y < cy + ch))
            return c->GetLink(x - cx, y - cy);
        c = c->GetNext();
    }
    return NULL;
}


void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
{
    if (!m_Cells) m_Cells = m_LastCell = f;
    else
    {
        m_LastCell->SetNext(f);
        m_LastCell = f;
        if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
    }
    f->SetParent(this);
    m_LastLayout = -1;
}


void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
{
    if (tag.HasParam(wxT("ALIGN")))
    {
        wxString alg = tag.GetParam(wxT("ALIGN"));
        alg.MakeUpper();
        if (alg == wxT("CENTER"))
            SetAlignHor(wxHTML_ALIGN_CENTER);
        else if (alg == wxT("LEFT"))
            SetAlignHor(wxHTML_ALIGN_LEFT);
        else if (alg == wxT("JUSTIFY"))
            SetAlignHor(wxHTML_ALIGN_JUSTIFY);
        else if (alg == wxT("RIGHT"))
            SetAlignHor(wxHTML_ALIGN_RIGHT);
        m_LastLayout = -1;
    }
}


void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
{
    if (tag.HasParam(wxT("WIDTH")))
    {
        int wdi;
        wxString wd = tag.GetParam(wxT("WIDTH"));

        if (wd[wd.Length()-1] == wxT('%'))
	    {
            wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
            SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
        }
        else
	    {
            wxSscanf(wd.c_str(), wxT("%i"), &wdi);
            SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
        }
        m_LastLayout = -1;
    }
}


const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
{
    if (m_Cells)
    {
        const wxHtmlCell *r = NULL;

        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
        {
            r = cell->Find(condition, param);
            if (r) return r;
        }
    }
    return NULL;
}


void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
{
    if (m_Cells)
    {
        wxHtmlCell *c = m_Cells;
        while (c)
	    {
            if (    (c->GetPosX() <= x) &&
                    (c->GetPosY() <= y) &&
                    (c->GetPosX() + c->GetWidth() > x) &&
                    (c->GetPosY() + c->GetHeight() > y))
		    {
                c->OnMouseClick(parent, x - c->GetPosX(), y - c->GetPosY(), event);
                break;
            }
            c = c->GetNext();
        }
    }
}


//--------------------------------------------------------------------------------
// wxHtmlColourCell
//--------------------------------------------------------------------------------

void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
{
    if (m_Flags & wxHTML_CLR_FOREGROUND)
        dc.SetTextForeground(m_Colour);
    if (m_Flags & wxHTML_CLR_BACKGROUND)
    {
        dc.SetBackground(wxBrush(m_Colour, wxSOLID));
        dc.SetTextBackground(m_Colour);
    }
}

void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
{
    if (m_Flags & wxHTML_CLR_FOREGROUND)
        dc.SetTextForeground(m_Colour);
    if (m_Flags & wxHTML_CLR_BACKGROUND)
    {
        dc.SetBackground(wxBrush(m_Colour, wxSOLID));
        dc.SetTextBackground(m_Colour);
    }
}


//--------------------------------------------------------------------------------
// wxHtmlFontCell
//--------------------------------------------------------------------------------

void wxHtmlFontCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
{
    dc.SetFont(m_Font);
}

void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y)
{
    dc.SetFont(m_Font);
}


//--------------------------------------------------------------------------------
// wxHtmlWidgetCell
//--------------------------------------------------------------------------------

wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
{
    int sx, sy;
    m_Wnd = wnd;
    m_Wnd->GetSize(&sx, &sy);
    m_Width = sx, m_Height = sy;
    m_WidthFloat = w;
}


void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
{
    int absx = 0, absy = 0, stx, sty;
    wxHtmlCell *c = this;

    while (c)
    {
        absx += c->GetPosX();
        absy += c->GetPosY();
        c = c->GetParent();
    }

    ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
    m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
}


void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y)
{
    int absx = 0, absy = 0, stx, sty;
    wxHtmlCell *c = this;

    while (c)
    {
        absx += c->GetPosX();
        absy += c->GetPosY();
        c = c->GetParent();
    }

    ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
    m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
}


void wxHtmlWidgetCell::Layout(int w)
{
    if (m_WidthFloat != 0)
    {
        m_Width = (w * m_WidthFloat) / 100;
        m_Wnd->SetSize(m_Width, m_Height);
    }

    wxHtmlCell::Layout(w);
}

#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: htmlcell.cpp
	3	// Purpose: wxHtmlCell - basic element of HTML output
	4	// Author: Vaclav Slavik
	5	// RCS-ID: $Id$
	6	// Copyright: (c) 1999 Vaclav Slavik
	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation
	12	#endif
	13
	14	#include "wx/wxprec.h"
	15
	16	#include "wx/defs.h"
	17
	18	#if wxUSE_HTML && wxUSE_STREAMS
	19
	20	#ifdef __BORDLANDC__
	21	#pragma hdrstop
	22	#endif
	23
	24	#ifndef WXPRECOMP
	25	#include "wx/brush.h"
	26	#include "wx/colour.h"
	27	#include "wx/dc.h"
	28	#endif
	29
	30	#include "wx/html/htmlcell.h"
	31	#include "wx/html/htmlwin.h"
	32	#include <stdlib.h>
	33
	34
	35	//-----------------------------------------------------------------------------
	36	// wxHtmlCell
	37	//-----------------------------------------------------------------------------
	38
	39	wxHtmlCell::wxHtmlCell() : wxObject()
	40	{
	41	m_Next = NULL;
	42	m_Parent = NULL;
	43	m_Width = m_Height = m_Descent = 0;
	44	m_CanLiveOnPagebreak = TRUE;
	45	m_Link = NULL;
	46	}
	47
	48	wxHtmlCell::~wxHtmlCell()
	49	{
	50	if (m_Link) delete m_Link;
	51	}
	52
	53
	54	void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
	55	const wxMouseEvent& event)
	56	{
	57	wxHtmlLinkInfo *lnk = GetLink(x, y);
	58	if (lnk != NULL)
	59	{
	60	wxHtmlLinkInfo lnk2(*lnk);
	61	lnk2.SetEvent(&event);
	62	lnk2.SetHtmlCell(this);
	63	((wxHtmlWindow*)parent)->OnLinkClicked(lnk2);
	64	// note : this overcasting is legal because parent is always wxHtmlWindow
	65	}
	66	}
	67
	68
	69
	70	bool wxHtmlCell::AdjustPagebreak(int *pagebreak) const
	71	{
	72	if ((!m_CanLiveOnPagebreak) &&
	73	m_PosY < pagebreak && m_PosY + m_Height > pagebreak)
	74	{
	75	*pagebreak = m_PosY;
	76	return TRUE;
	77	}
	78	else
	79	return FALSE;
	80	}
	81
	82
	83
	84	void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
	85	{
	86	if (m_Link) delete m_Link;
	87	m_Link = NULL;
	88	if (link.GetHref() != wxEmptyString)
	89	m_Link = new wxHtmlLinkInfo(link);
	90	}
	91
	92
	93
	94	void wxHtmlCell::Layout(int w)
	95	{
	96	SetPos(0, 0);
	97	}
	98
	99
	100	const wxHtmlCell* wxHtmlCell::Find(int condition, const void* param) const
	101	{
	102	return NULL;
	103	}
	104
	105
	106
	107	//-----------------------------------------------------------------------------
	108	// wxHtmlWordCell
	109	//-----------------------------------------------------------------------------
	110
	111	wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
	112	{
	113	m_Word = word;
	114	dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
	115	SetCanLiveOnPagebreak(FALSE);
	116	}
	117
	118
	119
	120	void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	121	{
	122	dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
	123	}
	124
	125
	126
	127	//-----------------------------------------------------------------------------
	128	// wxHtmlContainerCell
	129	//-----------------------------------------------------------------------------
	130
	131
	132	wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
	133	{
	134	m_Cells = m_LastCell = NULL;
	135	m_Parent = parent;
	136	if (m_Parent) m_Parent->InsertCell(this);
	137	m_AlignHor = wxHTML_ALIGN_LEFT;
	138	m_AlignVer = wxHTML_ALIGN_BOTTOM;
	139	m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
	140	m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
	141	m_UseBkColour = FALSE;
	142	m_UseBorder = FALSE;
	143	m_MinHeight = 0;
	144	m_MinHeightAlign = wxHTML_ALIGN_TOP;
	145	m_LastLayout = -1;
	146	}
	147
	148	wxHtmlContainerCell::~wxHtmlContainerCell()
	149	{
	150	wxHtmlCell *cell = m_Cells;
	151	while ( cell )
	152	{
	153	wxHtmlCell *cellNext = cell->GetNext();
	154	delete cell;
	155	cell = cellNext;
	156	}
	157	}
	158
	159
	160
	161	void wxHtmlContainerCell::SetIndent(int i, int what, int units)
	162	{
	163	int val = (units == wxHTML_UNITS_PIXELS) ? i : -i;
	164	if (what & wxHTML_INDENT_LEFT) m_IndentLeft = val;
	165	if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
	166	if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
	167	if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
	168	m_LastLayout = -1;
	169	}
	170
	171
	172
	173	int wxHtmlContainerCell::GetIndent(int ind) const
	174	{
	175	if (ind & wxHTML_INDENT_LEFT) return m_IndentLeft;
	176	else if (ind & wxHTML_INDENT_RIGHT) return m_IndentRight;
	177	else if (ind & wxHTML_INDENT_TOP) return m_IndentTop;
	178	else if (ind & wxHTML_INDENT_BOTTOM) return m_IndentBottom;
	179	else return -1; /* BUG! Should not be called... */
	180	}
	181
	182
	183
	184
	185	int wxHtmlContainerCell::GetIndentUnits(int ind) const
	186	{
	187	bool p = FALSE;
	188	if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
	189	else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
	190	else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
	191	else if (ind & wxHTML_INDENT_BOTTOM) p = m_IndentBottom < 0;
	192	if (p) return wxHTML_UNITS_PERCENT;
	193	else return wxHTML_UNITS_PIXELS;
	194	}
	195
	196
	197
	198	bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const
	199	{
	200	if (!m_CanLiveOnPagebreak)
	201	return wxHtmlCell::AdjustPagebreak(pagebreak);
	202
	203	else
	204	{
	205	wxHtmlCell *c = GetFirstCell();
	206	bool rt = FALSE;
	207	int pbrk = *pagebreak - m_PosY;
	208
	209	while (c)
	210	{
	211	if (c->AdjustPagebreak(&pbrk))
	212	rt = TRUE;
	213	c = c->GetNext();
	214	}
	215	if (rt)
	216	*pagebreak = pbrk + m_PosY;
	217	return rt;
	218	}
	219	}
	220
	221
	222
	223	void wxHtmlContainerCell::Layout(int w)
	224	{
	225	if (m_LastLayout == w)
	226	{
	227	wxHtmlCell::Layout(w);
	228	return;
	229	}
	230
	231	wxHtmlCell cell = m_Cells, line = m_Cells;
	232	long xpos = 0, ypos = m_IndentTop;
	233	int xdelta = 0, ybasicpos = 0, ydiff;
	234	int s_width, s_indent;
	235	int ysizeup = 0, ysizedown = 0;
	236	int MaxLineWidth = 0;
	237	int xcnt = 0;
	238
	239
	240	/*
	241
	242	WIDTH ADJUSTING :
	243
	244	*/
	245
	246	if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
	247	{
	248	if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
	249	else m_Width = m_WidthFloat * w / 100;
	250	}
	251	else
	252	{
	253	if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
	254	else m_Width = m_WidthFloat;
	255	}
	256
	257	if (m_Cells)
	258	{
	259	int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
	260	int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
	261	for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
	262	cell->Layout(m_Width - (l + r));
	263	}
	264
	265	/*
	266
	267	LAYOUTING :
	268
	269	*/
	270
	271	// adjust indentation:
	272	s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
	273	s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
	274
	275	// my own layouting:
	276	while (cell != NULL)
	277	{
	278	switch (m_AlignVer)
	279	{
	280	case wxHTML_ALIGN_TOP : ybasicpos = 0; break;
	281	case wxHTML_ALIGN_BOTTOM : ybasicpos = - cell->GetHeight(); break;
	282	case wxHTML_ALIGN_CENTER : ybasicpos = - cell->GetHeight() / 2; break;
	283	}
	284	ydiff = cell->GetHeight() + ybasicpos;
	285
	286	if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
	287	if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
	288
	289	cell->SetPos(xpos, ybasicpos + cell->GetDescent());
	290	xpos += cell->GetWidth();
	291	cell = cell->GetNext();
	292	xcnt++;
	293
	294	// force new line if occured:
	295	if ((cell == NULL) \|\| (xpos + cell->GetWidth() > s_width))
	296	{
	297	if (xpos > MaxLineWidth) MaxLineWidth = xpos;
	298	if (ysizeup < 0) ysizeup = 0;
	299	if (ysizedown < 0) ysizedown = 0;
	300	switch (m_AlignHor) {
	301	case wxHTML_ALIGN_LEFT :
	302	case wxHTML_ALIGN_JUSTIFY :
	303	xdelta = 0;
	304	break;
	305	case wxHTML_ALIGN_RIGHT :
	306	xdelta = 0 + (s_width - xpos);
	307	break;
	308	case wxHTML_ALIGN_CENTER :
	309	xdelta = 0 + (s_width - xpos) / 2;
	310	break;
	311	}
	312	if (xdelta < 0) xdelta = 0;
	313	xdelta += s_indent;
	314
	315	ypos += ysizeup;
	316
	317	if (m_AlignHor != wxHTML_ALIGN_JUSTIFY \|\| cell == NULL)
	318	while (line != cell)
	319	{
	320	line->SetPos(line->GetPosX() + xdelta,
	321	ypos + line->GetPosY());
	322	line = line->GetNext();
	323	}
	324	else
	325	{
	326	int counter = 0;
	327	int step = (s_width - xpos);
	328	if (step < 0) step = 0;
	329	xcnt--;
	330	if (xcnt > 0) while (line != cell)
	331	{
	332	line->SetPos(line->GetPosX() + s_indent +
	333	(counter++ * step / xcnt),
	334	ypos + line->GetPosY());
	335	line = line->GetNext();
	336	}
	337	xcnt++;
	338	}
	339
	340	ypos += ysizedown;
	341	xpos = xcnt = 0;
	342	ysizeup = ysizedown = 0;
	343	line = cell;
	344	}
	345	}
	346
	347	// setup height & width, depending on container layout:
	348	m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
	349
	350	if (m_Height < m_MinHeight)
	351	{
	352	if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
	353	{
	354	int diff = m_MinHeight - m_Height;
	355	if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
	356	cell = m_Cells;
	357	while (cell)
	358	{
	359	cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
	360	cell = cell->GetNext();
	361	}
	362	}
	363	m_Height = m_MinHeight;
	364	}
	365
	366	MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
	367	if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
	368
	369	m_LastLayout = w;
	370
	371	wxHtmlCell::Layout(w);
	372	}
	373
	374
	375	#define mMin(a, b) (((a) < (b)) ? (a) : (b))
	376	#define mMax(a, b) (((a) < (b)) ? (b) : (a))
	377
	378	void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	379	{
	380	// container visible, draw it:
	381	if ((y + m_PosY < view_y2) && (y + m_PosY + m_Height > view_y1))
	382	{
	383
	384	if (m_UseBkColour)
	385	{
	386	wxBrush myb = wxBrush(m_BkColour, wxSOLID);
	387
	388	int real_y1 = mMax(y + m_PosY, view_y1);
	389	int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
	390
	391	dc.SetBrush(myb);
	392	dc.SetPen(*wxTRANSPARENT_PEN);
	393	dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
	394	}
	395
	396	if (m_UseBorder)
	397	{
	398	wxPen mypen1(m_BorderColour1, 1, wxSOLID);
	399	wxPen mypen2(m_BorderColour2, 1, wxSOLID);
	400
	401	dc.SetPen(mypen1);
	402	dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1);
	403	dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY);
	404	dc.SetPen(mypen2);
	405	dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
	406	dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
	407	}
	408
	409	if (m_Cells)
	410	{
	411	for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
	412	cell->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2);
	413	}
	414	}
	415	// container invisible, just proceed font+color changing:
	416	else
	417	{
	418	if (m_Cells)
	419	{
	420	for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
	421	cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
	422	}
	423	}
	424	}
	425
	426
	427
	428	void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y)
	429	{
	430	if (m_Cells)
	431	{
	432	for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
	433	cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
	434	}
	435	}
	436
	437
	438
	439	wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
	440	{
	441	wxHtmlCell *c = m_Cells;
	442	int cx, cy, cw, ch;
	443
	444	while (c)
	445	{
	446	cx = c->GetPosX(), cy = c->GetPosY();
	447	cw = c->GetWidth(), ch = c->GetHeight();
	448	if ((x >= cx) && (x < cx + cw) && (y >= cy) && (y < cy + ch))
	449	return c->GetLink(x - cx, y - cy);
	450	c = c->GetNext();
	451	}
	452	return NULL;
	453	}
	454
	455
	456
	457	void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
	458	{
	459	if (!m_Cells) m_Cells = m_LastCell = f;
	460	else
	461	{
	462	m_LastCell->SetNext(f);
	463	m_LastCell = f;
	464	if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
	465	}
	466	f->SetParent(this);
	467	m_LastLayout = -1;
	468	}
	469
	470
	471
	472	void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
	473	{
	474	if (tag.HasParam(wxT("ALIGN")))
	475	{
	476	wxString alg = tag.GetParam(wxT("ALIGN"));
	477	alg.MakeUpper();
	478	if (alg == wxT("CENTER"))
	479	SetAlignHor(wxHTML_ALIGN_CENTER);
	480	else if (alg == wxT("LEFT"))
	481	SetAlignHor(wxHTML_ALIGN_LEFT);
	482	else if (alg == wxT("JUSTIFY"))
	483	SetAlignHor(wxHTML_ALIGN_JUSTIFY);
	484	else if (alg == wxT("RIGHT"))
	485	SetAlignHor(wxHTML_ALIGN_RIGHT);
	486	m_LastLayout = -1;
	487	}
	488	}
	489
	490
	491
	492	void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
	493	{
	494	if (tag.HasParam(wxT("WIDTH")))
	495	{
	496	int wdi;
	497	wxString wd = tag.GetParam(wxT("WIDTH"));
	498
	499	if (wd[wd.Length()-1] == wxT('%'))
	500	{
	501	wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
	502	SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
	503	}
	504	else
	505	{
	506	wxSscanf(wd.c_str(), wxT("%i"), &wdi);
	507	SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
	508	}
	509	m_LastLayout = -1;
	510	}
	511	}
	512
	513
	514
	515	const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
	516	{
	517	if (m_Cells)
	518	{
	519	const wxHtmlCell *r = NULL;
	520
	521	for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
	522	{
	523	r = cell->Find(condition, param);
	524	if (r) return r;
	525	}
	526	}
	527	return NULL;
	528	}
	529
	530
	531
	532	void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
	533	{
	534	if (m_Cells)
	535	{
	536	wxHtmlCell *c = m_Cells;
	537	while (c)
	538	{
	539	if ( (c->GetPosX() <= x) &&
	540	(c->GetPosY() <= y) &&
	541	(c->GetPosX() + c->GetWidth() > x) &&
	542	(c->GetPosY() + c->GetHeight() > y))
	543	{
	544	c->OnMouseClick(parent, x - c->GetPosX(), y - c->GetPosY(), event);
	545	break;
	546	}
	547	c = c->GetNext();
	548	}
	549	}
	550	}
	551
	552
	553
	554
	555
	556	//--------------------------------------------------------------------------------
	557	// wxHtmlColourCell
	558	//--------------------------------------------------------------------------------
	559
	560	void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	561	{
	562	if (m_Flags & wxHTML_CLR_FOREGROUND)
	563	dc.SetTextForeground(m_Colour);
	564	if (m_Flags & wxHTML_CLR_BACKGROUND)
	565	{
	566	dc.SetBackground(wxBrush(m_Colour, wxSOLID));
	567	dc.SetTextBackground(m_Colour);
	568	}
	569	}
	570
	571	void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
	572	{
	573	if (m_Flags & wxHTML_CLR_FOREGROUND)
	574	dc.SetTextForeground(m_Colour);
	575	if (m_Flags & wxHTML_CLR_BACKGROUND)
	576	{
	577	dc.SetBackground(wxBrush(m_Colour, wxSOLID));
	578	dc.SetTextBackground(m_Colour);
	579	}
	580	}
	581
	582
	583
	584
	585	//--------------------------------------------------------------------------------
	586	// wxHtmlFontCell
	587	//--------------------------------------------------------------------------------
	588
	589	void wxHtmlFontCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	590	{
	591	dc.SetFont(m_Font);
	592	}
	593
	594	void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y)
	595	{
	596	dc.SetFont(m_Font);
	597	}
	598
	599
	600
	601
	602
	603
	604
	605
	606	//--------------------------------------------------------------------------------
	607	// wxHtmlWidgetCell
	608	//--------------------------------------------------------------------------------
	609
	610	wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
	611	{
	612	int sx, sy;
	613	m_Wnd = wnd;
	614	m_Wnd->GetSize(&sx, &sy);
	615	m_Width = sx, m_Height = sy;
	616	m_WidthFloat = w;
	617	}
	618
	619
	620	void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	621	{
	622	int absx = 0, absy = 0, stx, sty;
	623	wxHtmlCell *c = this;
	624
	625	while (c)
	626	{
	627	absx += c->GetPosX();
	628	absy += c->GetPosY();
	629	c = c->GetParent();
	630	}
	631
	632	((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
	633	m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
	634	}
	635
	636
	637
	638	void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y)
	639	{
	640	int absx = 0, absy = 0, stx, sty;
	641	wxHtmlCell *c = this;
	642
	643	while (c)
	644	{
	645	absx += c->GetPosX();
	646	absy += c->GetPosY();
	647	c = c->GetParent();
	648	}
	649
	650	((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
	651	m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
	652	}
	653
	654
	655
	656	void wxHtmlWidgetCell::Layout(int w)
	657	{
	658	if (m_WidthFloat != 0)
	659	{
	660	m_Width = (w * m_WidthFloat) / 100;
	661	m_Wnd->SetSize(m_Width, m_Height);
	662	}
	663
	664	wxHtmlCell::Layout(w);
	665	}
	666
	667	#endif