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;
    if (m_Next) delete m_Next;
}


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;
        if (m_Next != NULL) m_Next->AdjustPagebreak(pagebreak);
        return TRUE;
    }

    else
    {
        if (m_Next != NULL) return m_Next->AdjustPagebreak(pagebreak);
        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);
    if (m_Next) m_Next->Layout(w);
}


void wxHtmlCell::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);
}


void wxHtmlCell::DrawInvisible(wxDC& dc, int x, int y)
{
    if (m_Next) m_Next->DrawInvisible(dc, x, y);
}


const wxHtmlCell* wxHtmlCell::Find(int condition, const void* param) const
{
    if (m_Next) return m_Next->Find(condition, param);
    else 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);
    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
}


//-----------------------------------------------------------------------------
// 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()
{
    if (m_Cells) delete m_Cells;
}


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

    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
}


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


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
{
    const wxHtmlCell *r = NULL;

    if (m_Cells)
    {
        r = m_Cells->Find(condition, param);
        if (r) return r;
    }

    return wxHtmlCell::Find(condition, param);
}


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);
    }
    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
}

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);
    }
    wxHtmlCell::DrawInvisible(dc, x, y);
}


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

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

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


//--------------------------------------------------------------------------------
// 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);

    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
}


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);

    wxHtmlCell::DrawInvisible(dc, x, y);
}


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	if (m_Next) delete m_Next;
	52	}
	53
	54
	55	void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
	56	const wxMouseEvent& event)
	57	{
	58	wxHtmlLinkInfo *lnk = GetLink(x, y);
	59	if (lnk != NULL)
	60	{
	61	wxHtmlLinkInfo lnk2(*lnk);
	62	lnk2.SetEvent(&event);
	63	lnk2.SetHtmlCell(this);
	64	((wxHtmlWindow*)parent)->OnLinkClicked(lnk2);
	65	// note : this overcasting is legal because parent is always wxHtmlWindow
	66	}
	67	}
	68
	69
	70
	71	bool wxHtmlCell::AdjustPagebreak(int *pagebreak) const
	72	{
	73	if ((!m_CanLiveOnPagebreak) &&
	74	m_PosY < pagebreak && m_PosY + m_Height > pagebreak)
	75	{
	76	*pagebreak = m_PosY;
	77	if (m_Next != NULL) m_Next->AdjustPagebreak(pagebreak);
	78	return TRUE;
	79	}
	80
	81	else
	82	{
	83	if (m_Next != NULL) return m_Next->AdjustPagebreak(pagebreak);
	84	else return FALSE;
	85	}
	86	}
	87
	88
	89
	90	void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
	91	{
	92	if (m_Link) delete m_Link;
	93	m_Link = NULL;
	94	if (link.GetHref() != wxEmptyString)
	95	m_Link = new wxHtmlLinkInfo(link);
	96	}
	97
	98
	99
	100	void wxHtmlCell::Layout(int w)
	101	{
	102	SetPos(0, 0);
	103	if (m_Next) m_Next->Layout(w);
	104	}
	105
	106
	107	void wxHtmlCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	108	{
	109	if (m_Next) m_Next->Draw(dc, x, y, view_y1, view_y2);
	110	}
	111
	112
	113
	114	void wxHtmlCell::DrawInvisible(wxDC& dc, int x, int y)
	115	{
	116	if (m_Next) m_Next->DrawInvisible(dc, x, y);
	117	}
	118
	119
	120
	121	const wxHtmlCell* wxHtmlCell::Find(int condition, const void* param) const
	122	{
	123	if (m_Next) return m_Next->Find(condition, param);
	124	else return NULL;
	125	}
	126
	127
	128
	129	//-----------------------------------------------------------------------------
	130	// wxHtmlWordCell
	131	//-----------------------------------------------------------------------------
	132
	133	wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
	134	{
	135	m_Word = word;
	136	dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
	137	SetCanLiveOnPagebreak(FALSE);
	138	}
	139
	140
	141
	142	void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	143	{
	144	dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
	145	wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
	146	}
	147
	148
	149
	150	//-----------------------------------------------------------------------------
	151	// wxHtmlContainerCell
	152	//-----------------------------------------------------------------------------
	153
	154
	155	wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
	156	{
	157	m_Cells = m_LastCell = NULL;
	158	m_Parent = parent;
	159	if (m_Parent) m_Parent->InsertCell(this);
	160	m_AlignHor = wxHTML_ALIGN_LEFT;
	161	m_AlignVer = wxHTML_ALIGN_BOTTOM;
	162	m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
	163	m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
	164	m_UseBkColour = FALSE;
	165	m_UseBorder = FALSE;
	166	m_MinHeight = 0;
	167	m_MinHeightAlign = wxHTML_ALIGN_TOP;
	168	m_LastLayout = -1;
	169	}
	170
	171	wxHtmlContainerCell::~wxHtmlContainerCell()
	172	{
	173	if (m_Cells) delete m_Cells;
	174	}
	175
	176
	177
	178	void wxHtmlContainerCell::SetIndent(int i, int what, int units)
	179	{
	180	int val = (units == wxHTML_UNITS_PIXELS) ? i : -i;
	181	if (what & wxHTML_INDENT_LEFT) m_IndentLeft = val;
	182	if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
	183	if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
	184	if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
	185	m_LastLayout = -1;
	186	}
	187
	188
	189
	190	int wxHtmlContainerCell::GetIndent(int ind) const
	191	{
	192	if (ind & wxHTML_INDENT_LEFT) return m_IndentLeft;
	193	else if (ind & wxHTML_INDENT_RIGHT) return m_IndentRight;
	194	else if (ind & wxHTML_INDENT_TOP) return m_IndentTop;
	195	else if (ind & wxHTML_INDENT_BOTTOM) return m_IndentBottom;
	196	else return -1; /* BUG! Should not be called... */
	197	}
	198
	199
	200
	201
	202	int wxHtmlContainerCell::GetIndentUnits(int ind) const
	203	{
	204	bool p = FALSE;
	205	if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
	206	else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
	207	else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
	208	else if (ind & wxHTML_INDENT_BOTTOM) p = m_IndentBottom < 0;
	209	if (p) return wxHTML_UNITS_PERCENT;
	210	else return wxHTML_UNITS_PIXELS;
	211	}
	212
	213
	214
	215	bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const
	216	{
	217	if (!m_CanLiveOnPagebreak)
	218	return wxHtmlCell::AdjustPagebreak(pagebreak);
	219
	220	else
	221	{
	222	wxHtmlCell *c = GetFirstCell();
	223	bool rt = FALSE;
	224	int pbrk = *pagebreak - m_PosY;
	225
	226	while (c)
	227	{
	228	if (c->AdjustPagebreak(&pbrk)) rt = TRUE;
	229	c = c->GetNext();
	230	}
	231	if (rt) *pagebreak = pbrk + m_PosY;
	232	return rt;
	233	}
	234	}
	235
	236
	237
	238	void wxHtmlContainerCell::Layout(int w)
	239	{
	240	if (m_LastLayout == w)
	241	{
	242	wxHtmlCell::Layout(w);
	243	return;
	244	}
	245
	246	wxHtmlCell cell = m_Cells, line = m_Cells;
	247	long xpos = 0, ypos = m_IndentTop;
	248	int xdelta = 0, ybasicpos = 0, ydiff;
	249	int s_width, s_indent;
	250	int ysizeup = 0, ysizedown = 0;
	251	int MaxLineWidth = 0;
	252	int xcnt = 0;
	253
	254
	255	/*
	256
	257	WIDTH ADJUSTING :
	258
	259	*/
	260
	261	if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
	262	{
	263	if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
	264	else m_Width = m_WidthFloat * w / 100;
	265	}
	266	else
	267	{
	268	if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
	269	else m_Width = m_WidthFloat;
	270	}
	271
	272	if (m_Cells)
	273	{
	274	int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
	275	int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
	276	m_Cells->Layout(m_Width - (l + r));
	277	}
	278
	279	/*
	280
	281	LAYOUTING :
	282
	283	*/
	284
	285	// adjust indentation:
	286	s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
	287	s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
	288
	289	// my own layouting:
	290	while (cell != NULL)
	291	{
	292	switch (m_AlignVer)
	293	{
	294	case wxHTML_ALIGN_TOP : ybasicpos = 0; break;
	295	case wxHTML_ALIGN_BOTTOM : ybasicpos = - cell->GetHeight(); break;
	296	case wxHTML_ALIGN_CENTER : ybasicpos = - cell->GetHeight() / 2; break;
	297	}
	298	ydiff = cell->GetHeight() + ybasicpos;
	299
	300	if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
	301	if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
	302
	303	cell->SetPos(xpos, ybasicpos + cell->GetDescent());
	304	xpos += cell->GetWidth();
	305	cell = cell->GetNext();
	306	xcnt++;
	307
	308	// force new line if occured:
	309	if ((cell == NULL) \|\| (xpos + cell->GetWidth() > s_width))
	310	{
	311	if (xpos > MaxLineWidth) MaxLineWidth = xpos;
	312	if (ysizeup < 0) ysizeup = 0;
	313	if (ysizedown < 0) ysizedown = 0;
	314	switch (m_AlignHor) {
	315	case wxHTML_ALIGN_LEFT :
	316	case wxHTML_ALIGN_JUSTIFY :
	317	xdelta = 0;
	318	break;
	319	case wxHTML_ALIGN_RIGHT :
	320	xdelta = 0 + (s_width - xpos);
	321	break;
	322	case wxHTML_ALIGN_CENTER :
	323	xdelta = 0 + (s_width - xpos) / 2;
	324	break;
	325	}
	326	if (xdelta < 0) xdelta = 0;
	327	xdelta += s_indent;
	328
	329	ypos += ysizeup;
	330
	331	if (m_AlignHor != wxHTML_ALIGN_JUSTIFY \|\| cell == NULL)
	332	while (line != cell)
	333	{
	334	line->SetPos(line->GetPosX() + xdelta,
	335	ypos + line->GetPosY());
	336	line = line->GetNext();
	337	}
	338	else
	339	{
	340	int counter = 0;
	341	int step = (s_width - xpos);
	342	if (step < 0) step = 0;
	343	xcnt--;
	344	if (xcnt > 0) while (line != cell)
	345	{
	346	line->SetPos(line->GetPosX() + s_indent +
	347	(counter++ * step / xcnt),
	348	ypos + line->GetPosY());
	349	line = line->GetNext();
	350	}
	351	xcnt++;
	352	}
	353
	354	ypos += ysizedown;
	355	xpos = xcnt = 0;
	356	ysizeup = ysizedown = 0;
	357	line = cell;
	358	}
	359	}
	360
	361	// setup height & width, depending on container layout:
	362	m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
	363
	364	if (m_Height < m_MinHeight)
	365	{
	366	if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
	367	{
	368	int diff = m_MinHeight - m_Height;
	369	if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
	370	cell = m_Cells;
	371	while (cell)
	372	{
	373	cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
	374	cell = cell->GetNext();
	375	}
	376	}
	377	m_Height = m_MinHeight;
	378	}
	379
	380	MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
	381	if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
	382
	383	m_LastLayout = w;
	384
	385	wxHtmlCell::Layout(w);
	386	}
	387
	388
	389	#define mMin(a, b) (((a) < (b)) ? (a) : (b))
	390	#define mMax(a, b) (((a) < (b)) ? (b) : (a))
	391
	392	void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	393	{
	394	// container visible, draw it:
	395	if ((y + m_PosY < view_y2) && (y + m_PosY + m_Height > view_y1))
	396	{
	397
	398	if (m_UseBkColour)
	399	{
	400	wxBrush myb = wxBrush(m_BkColour, wxSOLID);
	401
	402	int real_y1 = mMax(y + m_PosY, view_y1);
	403	int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
	404
	405	dc.SetBrush(myb);
	406	dc.SetPen(*wxTRANSPARENT_PEN);
	407	dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
	408	}
	409
	410	if (m_UseBorder)
	411	{
	412	wxPen mypen1(m_BorderColour1, 1, wxSOLID);
	413	wxPen mypen2(m_BorderColour2, 1, wxSOLID);
	414
	415	dc.SetPen(mypen1);
	416	dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1);
	417	dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY);
	418	dc.SetPen(mypen2);
	419	dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
	420	dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
	421	}
	422
	423	if (m_Cells) m_Cells->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2);
	424	}
	425	// container invisible, just proceed font+color changing:
	426	else
	427	{
	428	if (m_Cells) m_Cells->DrawInvisible(dc, x + m_PosX, y + m_PosY);
	429	}
	430
	431	wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
	432	}
	433
	434
	435
	436	void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y)
	437	{
	438	if (m_Cells) m_Cells->DrawInvisible(dc, x + m_PosX, y + m_PosY);
	439	wxHtmlCell::DrawInvisible(dc, x, y);
	440	}
	441
	442
	443
	444	wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
	445	{
	446	wxHtmlCell *c = m_Cells;
	447	int cx, cy, cw, ch;
	448
	449	while (c)
	450	{
	451	cx = c->GetPosX(), cy = c->GetPosY();
	452	cw = c->GetWidth(), ch = c->GetHeight();
	453	if ((x >= cx) && (x < cx + cw) && (y >= cy) && (y < cy + ch))
	454	return c->GetLink(x - cx, y - cy);
	455	c = c->GetNext();
	456	}
	457	return NULL;
	458	}
	459
	460
	461
	462	void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
	463	{
	464	if (!m_Cells) m_Cells = m_LastCell = f;
	465	else
	466	{
	467	m_LastCell->SetNext(f);
	468	m_LastCell = f;
	469	if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
	470	}
	471	f->SetParent(this);
	472	m_LastLayout = -1;
	473	}
	474
	475
	476
	477	void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
	478	{
	479	if (tag.HasParam(wxT("ALIGN")))
	480	{
	481	wxString alg = tag.GetParam(wxT("ALIGN"));
	482	alg.MakeUpper();
	483	if (alg == wxT("CENTER"))
	484	SetAlignHor(wxHTML_ALIGN_CENTER);
	485	else if (alg == wxT("LEFT"))
	486	SetAlignHor(wxHTML_ALIGN_LEFT);
	487	else if (alg == wxT("JUSTIFY"))
	488	SetAlignHor(wxHTML_ALIGN_JUSTIFY);
	489	else if (alg == wxT("RIGHT"))
	490	SetAlignHor(wxHTML_ALIGN_RIGHT);
	491	m_LastLayout = -1;
	492	}
	493	}
	494
	495
	496
	497	void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
	498	{
	499	if (tag.HasParam(wxT("WIDTH")))
	500	{
	501	int wdi;
	502	wxString wd = tag.GetParam(wxT("WIDTH"));
	503
	504	if (wd[wd.Length()-1] == wxT('%'))
	505	{
	506	wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
	507	SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
	508	}
	509	else
	510	{
	511	wxSscanf(wd.c_str(), wxT("%i"), &wdi);
	512	SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
	513	}
	514	m_LastLayout = -1;
	515	}
	516	}
	517
	518
	519
	520	const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
	521	{
	522	const wxHtmlCell *r = NULL;
	523
	524	if (m_Cells)
	525	{
	526	r = m_Cells->Find(condition, param);
	527	if (r) return r;
	528	}
	529
	530	return wxHtmlCell::Find(condition, param);
	531	}
	532
	533
	534
	535	void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
	536	{
	537	if (m_Cells)
	538	{
	539	wxHtmlCell *c = m_Cells;
	540	while (c)
	541	{
	542	if ( (c->GetPosX() <= x) &&
	543	(c->GetPosY() <= y) &&
	544	(c->GetPosX() + c->GetWidth() > x) &&
	545	(c->GetPosY() + c->GetHeight() > y))
	546	{
	547	c->OnMouseClick(parent, x - c->GetPosX(), y - c->GetPosY(), event);
	548	break;
	549	}
	550	c = c->GetNext();
	551	}
	552	}
	553	}
	554
	555
	556
	557
	558
	559	//--------------------------------------------------------------------------------
	560	// wxHtmlColourCell
	561	//--------------------------------------------------------------------------------
	562
	563	void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	564	{
	565	if (m_Flags & wxHTML_CLR_FOREGROUND)
	566	dc.SetTextForeground(m_Colour);
	567	if (m_Flags & wxHTML_CLR_BACKGROUND)
	568	{
	569	dc.SetBackground(wxBrush(m_Colour, wxSOLID));
	570	dc.SetTextBackground(m_Colour);
	571	}
	572	wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
	573	}
	574
	575	void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
	576	{
	577	if (m_Flags & wxHTML_CLR_FOREGROUND)
	578	dc.SetTextForeground(m_Colour);
	579	if (m_Flags & wxHTML_CLR_BACKGROUND)
	580	{
	581	dc.SetBackground(wxBrush(m_Colour, wxSOLID));
	582	dc.SetTextBackground(m_Colour);
	583	}
	584	wxHtmlCell::DrawInvisible(dc, x, y);
	585	}
	586
	587
	588
	589
	590	//--------------------------------------------------------------------------------
	591	// wxHtmlFontCell
	592	//--------------------------------------------------------------------------------
	593
	594	void wxHtmlFontCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	595	{
	596	dc.SetFont(m_Font);
	597	wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
	598	}
	599
	600	void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y)
	601	{
	602	dc.SetFont(m_Font);
	603	wxHtmlCell::DrawInvisible(dc, x, y);
	604	}
	605
	606
	607
	608
	609
	610
	611
	612
	613	//--------------------------------------------------------------------------------
	614	// wxHtmlWidgetCell
	615	//--------------------------------------------------------------------------------
	616
	617	wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
	618	{
	619	int sx, sy;
	620	m_Wnd = wnd;
	621	m_Wnd->GetSize(&sx, &sy);
	622	m_Width = sx, m_Height = sy;
	623	m_WidthFloat = w;
	624	}
	625
	626
	627	void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	628	{
	629	int absx = 0, absy = 0, stx, sty;
	630	wxHtmlCell *c = this;
	631
	632	while (c)
	633	{
	634	absx += c->GetPosX();
	635	absy += c->GetPosY();
	636	c = c->GetParent();
	637	}
	638
	639	((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
	640	m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
	641
	642	wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
	643	}
	644
	645
	646
	647	void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y)
	648	{
	649	int absx = 0, absy = 0, stx, sty;
	650	wxHtmlCell *c = this;
	651
	652	while (c)
	653	{
	654	absx += c->GetPosX();
	655	absy += c->GetPosY();
	656	c = c->GetParent();
	657	}
	658
	659	((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
	660	m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
	661
	662	wxHtmlCell::DrawInvisible(dc, x, y);
	663	}
	664
	665
	666
	667	void wxHtmlWidgetCell::Layout(int w)
	668	{
	669	if (m_WidthFloat != 0)
	670	{
	671	m_Width = (w * m_WidthFloat) / 100;
	672	m_Wnd->SetSize(m_Width, m_Height);
	673	}
	674
	675	wxHtmlCell::Layout(w);
	676	}
	677
	678	#endif