// Author: Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
#include "wx/wxprec.h"
#include "wx/defs.h"
#if wxUSE_HTML && wxUSE_STREAMS
-#ifdef __BORDLANDC__
+#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/html/htmlcell.h"
#include "wx/html/htmlwin.h"
+#include "wx/settings.h"
+#include "wx/module.h"
+#include "wx/dynarray.h"
+
#include <stdlib.h>
+//-----------------------------------------------------------------------------
+// Global variables
+//-----------------------------------------------------------------------------
+
+static wxCursor *gs_cursorLink = NULL;
+static wxCursor *gs_cursorText = NULL;
+
+
+//-----------------------------------------------------------------------------
+// Helper classes
+//-----------------------------------------------------------------------------
+
+void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
+ const wxPoint& toPos, const wxHtmlCell *toCell)
+{
+ m_fromCell = fromCell;
+ m_toCell = toCell;
+ m_fromPos = fromPos;
+ m_toPos = toPos;
+}
+
+void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell)
+{
+ wxPoint p1 = fromCell ? fromCell->GetAbsPos() : wxDefaultPosition;
+ wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
+ if ( toCell )
+ {
+ p2.x += toCell->GetWidth();
+ p2.y += toCell->GetHeight();
+ }
+ Set(p1, fromCell, p2, toCell);
+}
+
+wxColour
+wxDefaultHtmlRenderingStyle::
+GetSelectedTextColour(const wxColour& WXUNUSED(clr))
+{
+ return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
+}
+
+wxColour
+wxDefaultHtmlRenderingStyle::
+GetSelectedTextBgColour(const wxColour& WXUNUSED(clr))
+{
+ return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
+}
+
//-----------------------------------------------------------------------------
// wxHtmlCell
//-----------------------------------------------------------------------------
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlCell, wxObject)
+
wxHtmlCell::wxHtmlCell() : wxObject()
{
m_Next = NULL;
m_Parent = NULL;
m_Width = m_Height = m_Descent = 0;
- m_CanLiveOnPagebreak = TRUE;
+ m_ScriptMode = wxHTML_SCRIPT_NORMAL; // <sub> or <sup> mode
+ m_ScriptBaseline = 0; // <sub> or <sup> baseline
+ m_CanLiveOnPagebreak = true;
m_Link = NULL;
}
wxHtmlCell::~wxHtmlCell()
{
- if (m_Link) delete m_Link;
+ delete m_Link;
}
+// Update the descent value when whe are in a <sub> or <sup>.
+// prevbase is the parent base
+void wxHtmlCell::SetScriptMode(wxHtmlScriptMode mode, long previousBase)
+{
+ m_ScriptMode = mode;
+
+ if (mode == wxHTML_SCRIPT_SUP)
+ m_ScriptBaseline = previousBase - (m_Height + 1) / 2;
+ else if (mode == wxHTML_SCRIPT_SUB)
+ m_ScriptBaseline = previousBase + (m_Height + 1) / 6;
+ else
+ m_ScriptBaseline = 0;
+
+ m_Descent += m_ScriptBaseline;
+}
void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
const wxMouseEvent& event)
wxHtmlLinkInfo lnk2(*lnk);
lnk2.SetEvent(&event);
lnk2.SetHtmlCell(this);
- ((wxHtmlWindow*)parent)->OnLinkClicked(lnk2);
- // note : this overcasting is legal because parent is *always* wxHtmlWindow
+
+ // note : this cast is legal because parent is *always* wxHtmlWindow
+ wxStaticCast(parent, wxHtmlWindow)->OnLinkClicked(lnk2);
}
}
+wxCursor wxHtmlCell::GetCursor() const
+{
+ if ( GetLink() )
+ {
+ if ( !gs_cursorLink )
+ gs_cursorLink = new wxCursor(wxCURSOR_HAND);
+ return *gs_cursorLink;
+ }
+ else
+ return *wxSTANDARD_CURSOR;
+}
+
-bool wxHtmlCell::AdjustPagebreak(int *pagebreak) const
+bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const
{
if ((!m_CanLiveOnPagebreak) &&
m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
- {
+ {
*pagebreak = m_PosY;
- return TRUE;
+ return true;
}
- else
- return FALSE;
+
+ return false;
}
}
-
void wxHtmlCell::Layout(int WXUNUSED(w))
{
SetPos(0, 0);
-void wxHtmlCell::GetHorizontalConstraints(int *left, int *right) const
+const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
+{
+ return NULL;
+}
+
+
+wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y,
+ unsigned flags) const
{
- if (left)
- *left = m_PosX;
- if (right)
- *right = m_PosX + m_Width - 1;
+ if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height )
+ {
+ return wxConstCast(this, wxHtmlCell);
+ }
+ else
+ {
+ if ((flags & wxHTML_FIND_NEAREST_AFTER) &&
+ (y < 0 || (y < 0+m_Height && x < 0+m_Width)))
+ return wxConstCast(this, wxHtmlCell);
+ else if ((flags & wxHTML_FIND_NEAREST_BEFORE) &&
+ (y >= 0+m_Height || (y >= 0 && x >= 0)))
+ return wxConstCast(this, wxHtmlCell);
+ else
+ return NULL;
+ }
}
+wxPoint wxHtmlCell::GetAbsPos() const
+{
+ wxPoint p(m_PosX, m_PosY);
+ for (wxHtmlCell *parent = m_Parent; parent; parent = parent->m_Parent)
+ {
+ p.x += parent->m_PosX;
+ p.y += parent->m_PosY;
+ }
+ return p;
+}
-const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
+unsigned wxHtmlCell::GetDepth() const
{
- return NULL;
+ unsigned d = 0;
+ for (wxHtmlCell *p = m_Parent; p; p = p->m_Parent)
+ d++;
+ return d;
}
+bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const
+{
+ const wxHtmlCell *c1 = this;
+ const wxHtmlCell *c2 = cell;
+ unsigned d1 = GetDepth();
+ unsigned d2 = cell->GetDepth();
+
+ if ( d1 > d2 )
+ for (; d1 != d2; d1-- )
+ c1 = c1->m_Parent;
+ else if ( d1 < d2 )
+ for (; d1 != d2; d2-- )
+ c2 = c2->m_Parent;
+
+ if ( cell == this )
+ return true;
+
+ while ( c1 && c2 )
+ {
+ if ( c1->m_Parent == c2->m_Parent )
+ {
+ while ( c1 )
+ {
+ if ( c1 == c2 )
+ return true;
+ c1 = c1->GetNext();
+ }
+ return false;
+ }
+ else
+ {
+ c1 = c1->m_Parent;
+ c2 = c2->m_Parent;
+ }
+ }
+
+ wxFAIL_MSG(_T("Cells are in different trees"));
+ return false;
+}
//-----------------------------------------------------------------------------
// wxHtmlWordCell
//-----------------------------------------------------------------------------
-wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
+
+wxHtmlWordCell::wxHtmlWordCell(const wxString& word, const wxDC& dc) : wxHtmlCell()
{
m_Word = word;
dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
- SetCanLiveOnPagebreak(FALSE);
+ SetCanLiveOnPagebreak(false);
+ m_allowLinebreak = true;
+}
+
+void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell)
+{
+ if ( cell && m_Parent == cell->m_Parent &&
+ !wxIsspace(cell->m_Word.Last()) && !wxIsspace(m_Word[0u]) )
+ {
+ m_allowLinebreak = false;
+ }
+}
+
+// Splits m_Word into up to three parts according to selection, returns
+// substring before, in and after selection and the points (in relative coords)
+// where s2 and s3 start:
+void wxHtmlWordCell::Split(const wxDC& dc,
+ const wxPoint& selFrom, const wxPoint& selTo,
+ unsigned& pos1, unsigned& pos2) const
+{
+ wxPoint pt1 = (selFrom == wxDefaultPosition) ?
+ wxDefaultPosition : selFrom - GetAbsPos();
+ wxPoint pt2 = (selTo == wxDefaultPosition) ?
+ wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos();
+
+ unsigned len = m_Word.length();
+ unsigned i = 0;
+ pos1 = 0;
+
+ // adjust for cases when the start/end position is completely
+ // outside the cell:
+ if ( pt1.y < 0 )
+ pt1.x = 0;
+ if ( pt2.y >= m_Height )
+ pt2.x = m_Width;
+
+ // before selection:
+#ifdef __WXMAC__
+ // implementation using PartialExtents to support fractional widths
+ wxArrayInt widths ;
+ dc.GetPartialTextExtents(m_Word,widths) ;
+ while( i < len && pt1.x >= widths[i] )
+ i++ ;
+#else // __WXMAC__
+ wxCoord charW, charH;
+ while ( pt1.x > 0 && i < len )
+ {
+ dc.GetTextExtent(m_Word[i], &charW, &charH);
+ pt1.x -= charW;
+ if ( pt1.x >= 0 )
+ {
+ pos1 += charW;
+ i++;
+ }
+ }
+#endif // __WXMAC__/!__WXMAC__
+
+ // in selection:
+ unsigned j = i;
+#ifdef __WXMAC__
+ while( j < len && pt2.x >= widths[j] )
+ j++ ;
+#else // __WXMAC__
+ pos2 = pos1;
+ pt2.x -= pos2;
+ while ( pt2.x > 0 && j < len )
+ {
+ dc.GetTextExtent(m_Word[j], &charW, &charH);
+ pt2.x -= charW;
+ if ( pt2.x >= 0 )
+ {
+ pos2 += charW;
+ j++;
+ }
+ }
+#endif // __WXMAC__/!__WXMAC__
+
+ pos1 = i;
+ pos2 = j;
}
+void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const
+{
+ unsigned p1, p2;
+ Split(dc,
+ this == s->GetFromCell() ? s->GetFromPos() : wxDefaultPosition,
+ this == s->GetToCell() ? s->GetToPos() : wxDefaultPosition,
+ p1, p2);
-void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2))
+ wxPoint p(0, m_Word.length());
+
+ if ( this == s->GetFromCell() )
+ p.x = p1; // selection starts here
+ if ( this == s->GetToCell() )
+ p.y = p2; // selection ends here
+
+ if ( this == s->GetFromCell() )
+ s->SetFromPrivPos(p);
+ if ( this == s->GetToCell() )
+ s->SetToPrivPos(p);
+}
+
+
+static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info,
+ bool toSelection)
{
- dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
+ wxColour fg = info.GetState().GetFgColour();
+ wxColour bg = info.GetState().GetBgColour();
+
+ if ( toSelection )
+ {
+ dc.SetBackgroundMode(wxSOLID);
+ dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg));
+ dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg));
+ dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg),
+ wxSOLID));
+ }
+ else
+ {
+ dc.SetBackgroundMode(wxTRANSPARENT);
+ dc.SetTextForeground(fg);
+ dc.SetTextBackground(bg);
+ dc.SetBackground(wxBrush(bg, wxSOLID));
+ }
}
+void wxHtmlWordCell::Draw(wxDC& dc, int x, int y,
+ int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+ wxHtmlRenderingInfo& info)
+{
+#if 0 // useful for debugging
+ dc.SetPen(*wxBLACK_PEN);
+ dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width /* VZ: +1? */ ,m_Height);
+#endif
+
+ bool drawSelectionAfterCell = false;
+
+ if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING )
+ {
+ // Selection changing, we must draw the word piecewise:
+ wxHtmlSelection *s = info.GetSelection();
+ wxString txt;
+ int w, h;
+ int ofs = 0;
+
+ wxPoint priv = (this == s->GetFromCell()) ?
+ s->GetFromPrivPos() : s->GetToPrivPos();
+
+ // NB: this is quite a hack: in order to compute selection boundaries
+ // (in word's characters) we must know current font, which is only
+ // possible inside rendering code. Therefore we update the
+ // information here and store it in wxHtmlSelection so that
+ // ConvertToText can use it later:
+ if ( priv == wxDefaultPosition )
+ {
+ SetSelectionPrivPos(dc, s);
+ priv = (this == s->GetFromCell()) ?
+ s->GetFromPrivPos() : s->GetToPrivPos();
+ }
+
+ int part1 = priv.x;
+ int part2 = priv.y;
+
+ if ( part1 > 0 )
+ {
+ txt = m_Word.Mid(0, part1);
+ dc.DrawText(txt, x + m_PosX, y + m_PosY);
+ dc.GetTextExtent(txt, &w, &h);
+ ofs += w;
+ }
+
+ SwitchSelState(dc, info, true);
+
+ txt = m_Word.Mid(part1, part2-part1);
+ dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
+
+ if ( (size_t)part2 < m_Word.length() )
+ {
+ dc.GetTextExtent(txt, &w, &h);
+ ofs += w;
+ SwitchSelState(dc, info, false);
+ txt = m_Word.Mid(part2);
+ dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
+ }
+ else
+ drawSelectionAfterCell = true;
+ }
+ else
+ {
+ wxHtmlSelectionState selstate = info.GetState().GetSelectionState();
+ // Not changing selection state, draw the word in single mode:
+ if ( selstate != wxHTML_SEL_OUT &&
+ dc.GetBackgroundMode() != wxSOLID )
+ {
+ SwitchSelState(dc, info, true);
+ }
+ else if ( selstate == wxHTML_SEL_OUT &&
+ dc.GetBackgroundMode() == wxSOLID )
+ {
+ SwitchSelState(dc, info, false);
+ }
+ dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
+ drawSelectionAfterCell = (selstate != wxHTML_SEL_OUT);
+ }
+
+ // NB: If the text is justified then there is usually some free space
+ // between adjacent cells and drawing the selection only onto cells
+ // would result in ugly unselected spaces. The code below detects
+ // this special case and renders the selection *outside* the sell,
+ // too.
+ if ( m_Parent->GetAlignHor() == wxHTML_ALIGN_JUSTIFY &&
+ drawSelectionAfterCell )
+ {
+ wxHtmlCell *nextCell = m_Next;
+ while ( nextCell && nextCell->IsFormattingCell() )
+ nextCell = nextCell->GetNext();
+ if ( nextCell )
+ {
+ int nextX = nextCell->GetPosX();
+ if ( m_PosX + m_Width < nextX )
+ {
+ dc.SetBrush(dc.GetBackground());
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.DrawRectangle(x + m_PosX + m_Width, y + m_PosY,
+ nextX - m_PosX - m_Width, m_Height);
+ }
+ }
+ }
+}
+
+
+wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const
+{
+ if ( s && (this == s->GetFromCell() || this == s->GetToCell()) )
+ {
+ wxPoint priv = this == s->GetFromCell() ? s->GetFromPrivPos()
+ : s->GetToPrivPos();
+
+ // VZ: we may be called before we had a chance to re-render ourselves
+ // and in this case GetFrom/ToPrivPos() is not set yet -- assume
+ // that this only happens in case of a double/triple click (which
+ // seems to be the case now) and so it makes sense to select the
+ // entire contents of the cell in this case
+ //
+ // TODO: but this really needs to be fixed in some better way later...
+ if ( priv != wxDefaultPosition )
+ {
+ int part1 = priv.x;
+ int part2 = priv.y;
+ return m_Word.Mid(part1, part2-part1);
+ }
+ //else: return the whole word below
+ }
+
+ return m_Word;
+}
+
+wxCursor wxHtmlWordCell::GetCursor() const
+{
+ if ( !GetLink() )
+ {
+ if ( !gs_cursorText )
+ gs_cursorText = new wxCursor(wxCURSOR_IBEAM);
+ return *gs_cursorText;
+ }
+ else
+ return wxHtmlCell::GetCursor();
+}
+
//-----------------------------------------------------------------------------
// wxHtmlContainerCell
//-----------------------------------------------------------------------------
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlContainerCell, wxHtmlCell)
wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
{
m_Cells = m_LastCell = NULL;
m_Parent = parent;
+ m_MaxTotalWidth = 0;
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_UseBkColour = false;
+ m_UseBorder = false;
m_MinHeight = 0;
m_MinHeightAlign = wxHTML_ALIGN_TOP;
m_LastLayout = -1;
int wxHtmlContainerCell::GetIndentUnits(int ind) const
{
- bool p = FALSE;
+ 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;
-bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const
+bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, int number_of_pages) const
{
if (!m_CanLiveOnPagebreak)
- return wxHtmlCell::AdjustPagebreak(pagebreak);
+ return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages);
else
{
- wxHtmlCell *c = GetFirstCell();
- bool rt = FALSE;
+ wxHtmlCell *c = GetFirstChild();
+ bool rt = false;
int pbrk = *pagebreak - m_PosY;
while (c)
- {
- if (c->AdjustPagebreak(&pbrk))
- rt = TRUE;
+ {
+ if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
+ rt = true;
c = c->GetNext();
}
if (rt)
void wxHtmlContainerCell::Layout(int w)
{
- if (m_LastLayout == w)
+ wxHtmlCell::Layout(w);
+
+ if (m_LastLayout == w) return;
+
+ // VS: Any attempt to layout with negative or zero width leads to hell,
+ // but we can't ignore such attempts completely, since it sometimes
+ // happen (e.g. when trying how small a table can be). The best thing we
+ // can do is to set the width of child cells to zero
+ if (w < 1)
{
- wxHtmlCell::Layout(w);
- return;
+ m_Width = 0;
+ for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+ cell->Layout(0);
+ // this does two things: it recursively calls this code on all
+ // child contrainers and resets children's position to (0,0)
+ return;
}
- wxHtmlCell *cell = m_Cells, *line = m_Cells;
+ wxHtmlCell *nextCell;
long xpos = 0, ypos = m_IndentTop;
int xdelta = 0, ybasicpos = 0, ydiff;
- int s_width, s_indent;
+ int s_width, nextWordWidth, s_indent;
int ysizeup = 0, ysizedown = 0;
int MaxLineWidth = 0;
- int xcnt = 0;
+ int curLineWidth = 0;
+ m_MaxTotalWidth = 0;
/*
s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
// my own layouting:
+ wxHtmlCell *cell = m_Cells,
+ *line = m_Cells;
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;
if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
+ // layout nonbreakable run of cells:
cell->SetPos(xpos, ybasicpos + cell->GetDescent());
xpos += cell->GetWidth();
+ if (!cell->IsTerminalCell())
+ {
+ // Container cell indicates new line
+ if (curLineWidth > m_MaxTotalWidth)
+ m_MaxTotalWidth = curLineWidth;
+
+ if (wxMax(cell->GetWidth(), cell->GetMaxTotalWidth()) > m_MaxTotalWidth)
+ m_MaxTotalWidth = cell->GetMaxTotalWidth();
+ curLineWidth = 0;
+ }
+ else
+ // Normal cell, add maximum cell width to line width
+ curLineWidth += cell->GetMaxTotalWidth();
+
cell = cell->GetNext();
- xcnt++;
- // force new line if occured:
- if ((cell == NULL) || (xpos + cell->GetWidth() > s_width))
- {
+ // compute length of the next word that would be added:
+ nextWordWidth = 0;
+ if (cell)
+ {
+ nextCell = cell;
+ do
+ {
+ nextWordWidth += nextCell->GetWidth();
+ nextCell = nextCell->GetNext();
+ } while (nextCell && !nextCell->IsLinebreakAllowed());
+ }
+
+ // force new line if occurred:
+ if ((cell == NULL) ||
+ (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
+ {
if (xpos > MaxLineWidth) MaxLineWidth = xpos;
if (ysizeup < 0) ysizeup = 0;
if (ysizedown < 0) ysizedown = 0;
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
+ }
+ else // align == justify
{
- 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();
+ // we have to distribute the extra horz space between the cells
+ // on this line
+
+ // an added complication is that some cells have fixed size and
+ // shouldn't get any increment (it so happens that these cells
+ // also don't allow line break on them which provides with an
+ // easy way to test for this) -- and neither should the cells
+ // adjacent to them as this could result in a visible space
+ // between two cells separated by, e.g. font change, cell which
+ // is wrong
+
+ int step = s_width - xpos;
+ if ( step > 0 )
+ {
+ // first count the cells which will get extra space
+ int total = 0;
+
+ const wxHtmlCell *c;
+ if ( line != cell )
+ {
+ for ( c = line->GetNext(); c != cell; c = c->GetNext() )
+ {
+ if ( c->IsLinebreakAllowed() )
+ {
+ total++;
+ }
+ }
+ }
+
+ // and now extra space to those cells which merit it
+ if ( total )
+ {
+ // first cell on line is not moved:
+ line->SetPos(line->GetPosX() + s_indent,
+ line->GetPosY() + ypos);
+
+ line = line->GetNext();
+ for ( int n = 0; line != cell; line = line->GetNext() )
+ {
+ if ( line->IsLinebreakAllowed() )
+ {
+ // offset the next cell relative to this one
+ // thus increasing our size
+ n++;
+ }
+
+ line->SetPos(line->GetPosX() + s_indent +
+ ((n * step) / total),
+ line->GetPosY() + ypos);
+ }
+ }
+ else
+ {
+ // this will cause the code to enter "else branch" below:
+ step = 0;
+ }
+ }
+ // else branch:
+ if ( step <= 0 ) // no extra space to distribute
+ {
+ // just set the indent properly
+ while (line != cell)
+ {
+ line->SetPos(line->GetPosX() + s_indent,
+ line->GetPosY() + ypos);
+ line = line->GetNext();
+ }
}
- xcnt++;
}
ypos += ysizedown;
- xpos = xcnt = 0;
+ xpos = 0;
ysizeup = ysizedown = 0;
line = cell;
}
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;
}
+ if (curLineWidth > m_MaxTotalWidth)
+ m_MaxTotalWidth = curLineWidth;
+
+ m_MaxTotalWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
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);
+void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
+ wxHtmlCell *cell) const
+{
+ wxHtmlSelection *s = info.GetSelection();
+ if (!s) return;
+ if (s->GetFromCell() == cell || s->GetToCell() == cell)
+ {
+ info.GetState().SetSelectionState(wxHTML_SEL_CHANGING);
+ }
}
+void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
+ wxHtmlCell *cell) const
+{
+ wxHtmlSelection *s = info.GetSelection();
+ if (!s) return;
+ if (s->GetToCell() == cell)
+ info.GetState().SetSelectionState(wxHTML_SEL_OUT);
+ else if (s->GetFromCell() == cell)
+ info.GetState().SetSelectionState(wxHTML_SEL_IN);
+}
#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)
+void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+ wxHtmlRenderingInfo& info)
{
- // 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);
+#if 0 // useful for debugging
+ dc.SetPen(*wxRED_PEN);
+ dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
+#endif
- int real_y1 = mMax(y + m_PosY, view_y1);
- int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
+ int xlocal = x + m_PosX;
+ int ylocal = y + m_PosY;
- dc.SetBrush(myb);
- dc.SetPen(*wxTRANSPARENT_PEN);
- dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
- }
+ if (m_UseBkColour)
+ {
+ wxBrush myb = wxBrush(m_BkColour, wxSOLID);
- if (m_UseBorder)
- {
- wxPen mypen1(m_BorderColour1, 1, wxSOLID);
- wxPen mypen2(m_BorderColour2, 1, wxSOLID);
+ int real_y1 = mMax(ylocal, view_y1);
+ int real_y2 = mMin(ylocal + m_Height - 1, view_y2);
- 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);
- }
+ dc.SetBrush(myb);
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 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);
- }
+ if (m_UseBorder)
+ {
+ wxPen mypen1(m_BorderColour1, 1, wxSOLID);
+ wxPen mypen2(m_BorderColour2, 1, wxSOLID);
+
+ dc.SetPen(mypen1);
+ dc.DrawLine(xlocal, ylocal, xlocal, ylocal + m_Height - 1);
+ dc.DrawLine(xlocal, ylocal, xlocal + m_Width, ylocal);
+ dc.SetPen(mypen2);
+ dc.DrawLine(xlocal + m_Width - 1, ylocal, xlocal + m_Width - 1, ylocal + m_Height - 1);
+ dc.DrawLine(xlocal, ylocal + m_Height - 1, xlocal + m_Width, ylocal + m_Height - 1);
}
- // container invisible, just proceed font+color changing:
- else
+
+ if (m_Cells)
{
- if (m_Cells)
+ // draw container's contents:
+ for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
{
- for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
- cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
+
+ // optimize drawing: don't render off-screen content:
+ if ((ylocal + cell->GetPosY() <= view_y2) &&
+ (ylocal + cell->GetPosY() + cell->GetHeight() > view_y1))
+ {
+ // the cell is visible, draw it:
+ UpdateRenderingStatePre(info, cell);
+ cell->Draw(dc,
+ xlocal, ylocal, view_y1, view_y2,
+ info);
+ UpdateRenderingStatePost(info, cell);
+ }
+ else
+ {
+ // the cell is off-screen, proceed with font+color+etc.
+ // changes only:
+ cell->DrawInvisible(dc, xlocal, ylocal, info);
+ }
}
}
}
-void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y,
+ wxHtmlRenderingInfo& info)
{
if (m_Cells)
{
for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
- cell->DrawInvisible(dc, x + m_PosX, y + m_PosY);
+ {
+ UpdateRenderingStatePre(info, cell);
+ cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info);
+ UpdateRenderingStatePost(info, cell);
+ }
}
}
+wxColour wxHtmlContainerCell::GetBackgroundColour()
+{
+ if (m_UseBkColour)
+ return m_BkColour;
+ else
+ return wxNullColour;
+}
+
+
wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
{
- wxHtmlCell *c = m_Cells;
- int cx, cy, cw, ch;
+ wxHtmlCell *cell = FindCellByPos(x, y);
- 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;
+ // VZ: I don't know if we should pass absolute or relative coords to
+ // wxHtmlCell::GetLink()? As the base class version just ignores them
+ // anyhow, it hardly matters right now but should still be clarified
+ return cell ? cell->GetLink(x, y) : NULL;
}
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);
}
{
if (m_Cells)
{
- const wxHtmlCell *r = NULL;
-
for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
{
- r = cell->Find(condition, param);
+ const wxHtmlCell *r = cell->Find(condition, param);
if (r) return r;
}
}
}
-
-void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
+wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
+ unsigned flags) const
{
- if (m_Cells)
+ if ( flags & wxHTML_FIND_EXACT )
{
- 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;
+ for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+ {
+ int cx = cell->GetPosX(),
+ cy = cell->GetPosY();
+
+ if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
+ (cy <= y) && (cy + cell->GetHeight() > y) )
+ {
+ return cell->FindCellByPos(x - cx, y - cy, flags);
}
- c = c->GetNext();
}
}
+ else if ( flags & wxHTML_FIND_NEAREST_AFTER )
+ {
+ wxHtmlCell *c;
+ for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+ {
+ if ( cell->IsFormattingCell() )
+ continue;
+ int cellY = cell->GetPosY();
+ if (!( y < cellY || (y < cellY + cell->GetHeight() &&
+ x < cell->GetPosX() + cell->GetWidth()) ))
+ continue;
+
+ c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
+ if (c) return c;
+ }
+ }
+ else if ( flags & wxHTML_FIND_NEAREST_BEFORE )
+ {
+ wxHtmlCell *c2, *c = NULL;
+ for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+ {
+ if ( cell->IsFormattingCell() )
+ continue;
+ int cellY = cell->GetPosY();
+ if (!( cellY + cell->GetHeight() <= y ||
+ (y >= cellY && x >= cell->GetPosX()) ))
+ break;
+ c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
+ if (c2)
+ c = c2;
+ }
+ if (c) return c;
+ }
+
+ return NULL;
+}
+
+
+void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
+{
+ wxHtmlCell *cell = FindCellByPos(x, y);
+ if ( cell )
+ cell->OnMouseClick(parent, x, y, event);
}
-void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const
+wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
+{
+ if ( m_Cells )
+ {
+ wxHtmlCell *c2;
+ for (wxHtmlCell *c = m_Cells; c; c = c->GetNext())
+ {
+ c2 = c->GetFirstTerminal();
+ if ( c2 )
+ return c2;
+ }
+ }
+ return NULL;
+}
+
+wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const
{
- int cleft = m_PosX + m_Width, cright = m_PosX; // worst case
- int l, r;
-
- for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+ if ( m_Cells )
{
- cell->GetHorizontalConstraints(&l, &r);
- if (l < cleft)
- cleft = l;
- if (r > cright)
- cright = r;
- }
+ // most common case first:
+ wxHtmlCell *c = m_LastCell->GetLastTerminal();
+ if ( c )
+ return c;
+
+ wxHtmlCell *ctmp;
+ wxHtmlCell *c2 = NULL;
+ for (c = m_Cells; c; c = c->GetNext())
+ {
+ ctmp = c->GetLastTerminal();
+ if ( ctmp )
+ c2 = ctmp;
+ }
+ return c2;
+ }
+ else
+ return NULL;
+}
+
- if (left)
- *left = cleft;
- if (right)
- *right = cright;
+static bool IsEmptyContainer(wxHtmlContainerCell *cell)
+{
+ for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() )
+ {
+ if ( !c->IsTerminalCell() || !c->IsFormattingCell() )
+ return false;
+ }
+ return true;
}
+void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
+{
+ if ( top )
+ SetIndent(0, wxHTML_INDENT_TOP);
+ if ( bottom )
+ SetIndent(0, wxHTML_INDENT_BOTTOM);
+ if ( m_Cells )
+ {
+ wxHtmlCell *c;
+ wxHtmlContainerCell *cont;
+ if ( top )
+ {
+ for ( c = m_Cells; c; c = c->GetNext() )
+ {
+ if ( c->IsTerminalCell() )
+ {
+ if ( !c->IsFormattingCell() )
+ break;
+ }
+ else
+ {
+ cont = (wxHtmlContainerCell*)c;
+ if ( IsEmptyContainer(cont) )
+ {
+ cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
+ }
+ else
+ {
+ cont->RemoveExtraSpacing(true, false);
+ break;
+ }
+ }
+ }
+ }
+
+ if ( bottom )
+ {
+ wxArrayPtrVoid arr;
+ for ( c = m_Cells; c; c = c->GetNext() )
+ arr.Add((void*)c);
+
+ for ( int i = arr.GetCount() - 1; i >= 0; i--)
+ {
+ c = (wxHtmlCell*)arr[i];
+ if ( c->IsTerminalCell() )
+ {
+ if ( !c->IsFormattingCell() )
+ break;
+ }
+ else
+ {
+ cont = (wxHtmlContainerCell*)c;
+ if ( IsEmptyContainer(cont) )
+ {
+ cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
+ }
+ else
+ {
+ cont->RemoveExtraSpacing(false, true);
+ break;
+ }
+ }
+ }
+ }
+ }
+}
-//--------------------------------------------------------------------------------
+
+// --------------------------------------------------------------------------
// wxHtmlColourCell
-//--------------------------------------------------------------------------------
+// --------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
-void wxHtmlColourCell::Draw(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2))
+void wxHtmlColourCell::Draw(wxDC& dc,
+ int x, int y,
+ int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+ wxHtmlRenderingInfo& info)
{
- 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);
- }
+ DrawInvisible(dc, x, y, info);
}
-void wxHtmlColourCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y))
+void wxHtmlColourCell::DrawInvisible(wxDC& dc,
+ int WXUNUSED(x), int WXUNUSED(y),
+ wxHtmlRenderingInfo& info)
{
+ wxHtmlRenderingState& state = info.GetState();
if (m_Flags & wxHTML_CLR_FOREGROUND)
- dc.SetTextForeground(m_Colour);
+ {
+ state.SetFgColour(m_Colour);
+ if (state.GetSelectionState() != wxHTML_SEL_IN)
+ dc.SetTextForeground(m_Colour);
+ else
+ dc.SetTextForeground(
+ info.GetStyle().GetSelectedTextColour(m_Colour));
+ }
if (m_Flags & wxHTML_CLR_BACKGROUND)
{
- dc.SetBackground(wxBrush(m_Colour, wxSOLID));
- dc.SetTextBackground(m_Colour);
+ state.SetBgColour(m_Colour);
+ if (state.GetSelectionState() != wxHTML_SEL_IN)
+ {
+ dc.SetTextBackground(m_Colour);
+ dc.SetBackground(wxBrush(m_Colour, wxSOLID));
+ }
+ else
+ {
+ wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
+ dc.SetTextBackground(c);
+ dc.SetBackground(wxBrush(c, wxSOLID));
+ }
}
}
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
// wxHtmlFontCell
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
-void wxHtmlFontCell::Draw(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2))
+void wxHtmlFontCell::Draw(wxDC& dc,
+ int WXUNUSED(x), int WXUNUSED(y),
+ int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+ wxHtmlRenderingInfo& WXUNUSED(info))
{
dc.SetFont(m_Font);
}
-void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y))
+void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
+ wxHtmlRenderingInfo& WXUNUSED(info))
{
dc.SetFont(m_Font);
}
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
// wxHtmlWidgetCell
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
{
}
-void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2))
+void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
+ int WXUNUSED(x), int WXUNUSED(y),
+ int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+ wxHtmlRenderingInfo& WXUNUSED(info))
{
int absx = 0, absy = 0, stx, sty;
wxHtmlCell *c = this;
-void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y))
+void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc),
+ int WXUNUSED(x), int WXUNUSED(y),
+ wxHtmlRenderingInfo& WXUNUSED(info))
{
int absx = 0, absy = 0, stx, sty;
wxHtmlCell *c = this;
wxHtmlCell::Layout(w);
}
+
+
+// ----------------------------------------------------------------------------
+// wxHtmlTerminalCellsInterator
+// ----------------------------------------------------------------------------
+
+const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
+{
+ if ( !m_pos )
+ return NULL;
+
+ do
+ {
+ if ( m_pos == m_to )
+ {
+ m_pos = NULL;
+ return NULL;
+ }
+
+ if ( m_pos->GetNext() )
+ m_pos = m_pos->GetNext();
+ else
+ {
+ // we must go up the hierarchy until we reach container where this
+ // is not the last child, and then go down to first terminal cell:
+ while ( m_pos->GetNext() == NULL )
+ {
+ m_pos = m_pos->GetParent();
+ if ( !m_pos )
+ return NULL;
+ }
+ m_pos = m_pos->GetNext();
+ }
+ while ( m_pos->GetFirstChild() != NULL )
+ m_pos = m_pos->GetFirstChild();
+ } while ( !m_pos->IsTerminalCell() );
+
+ return m_pos;
+}
+
+
+
+
+
+
+
+//-----------------------------------------------------------------------------
+// Cleanup
+//-----------------------------------------------------------------------------
+
+class wxHtmlCellModule: public wxModule
+{
+DECLARE_DYNAMIC_CLASS(wxHtmlCellModule)
+public:
+ wxHtmlCellModule() : wxModule() {}
+ bool OnInit() { return true; }
+ void OnExit()
+ {
+ wxDELETE(gs_cursorLink);
+ wxDELETE(gs_cursorText);
+ }
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule)
+
#endif
projects / wxWidgets.git / blobdiff