/////////////////////////////////////////////////////////////////////////////
-// Name: htmlcell.cpp
+// Name: src/html/htmlcell.cpp
// Purpose: wxHtmlCell - basic element of HTML output
// Author: Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "htmlcell.h"
-#endif
-
#include "wx/wxprec.h"
-#include "wx/defs.h"
-
-#if wxUSE_HTML && wxUSE_STREAMS
-
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WXPRECOMP
+#if wxUSE_HTML && wxUSE_STREAMS
+
+#ifndef WX_PRECOMP
+ #include "wx/dynarray.h"
#include "wx/brush.h"
#include "wx/colour.h"
#include "wx/dc.h"
+ #include "wx/settings.h"
+ #include "wx/module.h"
+ #include "wx/wxcrtvararg.h"
#endif
#include "wx/html/htmlcell.h"
#include "wx/html/htmlwin.h"
-#include "wx/settings.h"
-#include "wx/module.h"
#include <stdlib.h>
-//-----------------------------------------------------------------------------
-// Global variables
-//-----------------------------------------------------------------------------
-
-static wxCursor *gs_cursorLink = NULL;
-static wxCursor *gs_cursorText = NULL;
-
-
//-----------------------------------------------------------------------------
// Helper classes
//-----------------------------------------------------------------------------
wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
if ( toCell )
{
- p2.x += toCell->GetWidth()-1;
- p2.y += toCell->GetHeight()-1;
+ p2.x += toCell->GetWidth();
+ p2.y += toCell->GetHeight();
}
Set(p1, fromCell, p2, toCell);
}
-wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextColour(
- const wxColour& clr)
+wxColour
+wxDefaultHtmlRenderingStyle::
+GetSelectedTextColour(const wxColour& WXUNUSED(clr))
{
return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
}
-wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextBgColour(
- const wxColour& WXUNUSED(clr))
+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;
}
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;
+}
+
+#if WXWIN_COMPATIBILITY_2_6
+
+struct wxHtmlCellOnMouseClickCompatHelper;
+
+static wxHtmlCellOnMouseClickCompatHelper *gs_helperOnMouseClick = NULL;
+
+// helper for routing calls to new ProcessMouseClick() method to deprecated
+// OnMouseClick() method
+struct wxHtmlCellOnMouseClickCompatHelper
+{
+ wxHtmlCellOnMouseClickCompatHelper(wxHtmlWindowInterface *window_,
+ const wxPoint& pos_,
+ const wxMouseEvent& event_)
+ : window(window_), pos(pos_), event(event_), retval(false)
+ {
+ }
+
+ bool CallOnMouseClick(wxHtmlCell *cell)
+ {
+ wxHtmlCellOnMouseClickCompatHelper *oldHelper = gs_helperOnMouseClick;
+ gs_helperOnMouseClick = this;
+ cell->OnMouseClick
+ (
+ window ? window->GetHTMLWindow() : NULL,
+ pos.x, pos.y,
+ event
+ );
+ gs_helperOnMouseClick = oldHelper;
+ return retval;
+ }
+
+ wxHtmlWindowInterface *window;
+ const wxPoint& pos;
+ const wxMouseEvent& event;
+ bool retval;
+};
+#endif // WXWIN_COMPATIBILITY_2_6
+
+bool wxHtmlCell::ProcessMouseClick(wxHtmlWindowInterface *window,
+ const wxPoint& pos,
+ const wxMouseEvent& event)
+{
+ wxCHECK_MSG( window, false, _T("window interface must be provided") );
+
+#if WXWIN_COMPATIBILITY_2_6
+ // NB: this hack puts the body of ProcessMouseClick() into OnMouseClick()
+ // (for which it has to pass the arguments and return value via a
+ // helper variable because these two methods have different
+ // signatures), so that old code overriding OnMouseClick will continue
+ // to work
+ wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
+ return compat.CallOnMouseClick(this);
+}
-void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
- const wxMouseEvent& event)
+void wxHtmlCell::OnMouseClick(wxWindow *, int, int, const wxMouseEvent& event)
{
- wxHtmlLinkInfo *lnk = GetLink(x, y);
- if (lnk != NULL)
+ wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") );
+ wxHtmlWindowInterface *window = gs_helperOnMouseClick->window;
+ const wxPoint& pos = gs_helperOnMouseClick->pos;
+#endif // WXWIN_COMPATIBILITY_2_6
+
+ wxHtmlLinkInfo *lnk = GetLink(pos.x, pos.y);
+ bool retval = false;
+
+ if (lnk)
{
wxHtmlLinkInfo lnk2(*lnk);
lnk2.SetEvent(&event);
lnk2.SetHtmlCell(this);
- // note : this cast is legal because parent is *always* wxHtmlWindow
- wxStaticCast(parent, wxHtmlWindow)->OnLinkClicked(lnk2);
+ window->OnHTMLLinkClicked(lnk2);
+ retval = true;
}
-}
+#if WXWIN_COMPATIBILITY_2_6
+ gs_helperOnMouseClick->retval = retval;
+#else
+ return retval;
+#endif // WXWIN_COMPATIBILITY_2_6
+}
+#if WXWIN_COMPATIBILITY_2_6
wxCursor wxHtmlCell::GetCursor() const
{
+ return wxNullCursor;
+}
+#endif // WXWIN_COMPATIBILITY_2_6
+
+wxCursor wxHtmlCell::GetMouseCursor(wxHtmlWindowInterface *window) const
+{
+#if WXWIN_COMPATIBILITY_2_6
+ // NB: Older versions of wx used GetCursor() virtual method in place of
+ // GetMouseCursor(interface). This code ensures that user code that
+ // overriden GetCursor() continues to work. The trick is that the base
+ // wxHtmlCell::GetCursor() method simply returns wxNullCursor, so we
+ // know that GetCursor() was overriden iff it returns valid cursor.
+ wxCursor cur = GetCursor();
+ if (cur.Ok())
+ return cur;
+#endif // WXWIN_COMPATIBILITY_2_6
+
if ( GetLink() )
{
- if ( !gs_cursorLink )
- gs_cursorLink = new wxCursor(wxCURSOR_HAND);
- return *gs_cursorLink;
+ return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Link);
}
else
- return *wxSTANDARD_CURSOR;
+ {
+ return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Default);
+ }
}
-bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const
+bool wxHtmlCell::AdjustPagebreak(int *pagebreak,
+ wxArrayInt& WXUNUSED(known_pagebreaks)) const
{
if ((!m_CanLiveOnPagebreak) &&
m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
{
*pagebreak = m_PosY;
- return TRUE;
+ return true;
}
- return FALSE;
+ return false;
}
-void wxHtmlCell::GetHorizontalConstraints(int *left, int *right) const
-{
- if (left)
- *left = m_PosX;
- if (right)
- *right = m_PosX + m_Width;
-}
-
-
-
const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
{
return NULL;
else
{
if ((flags & wxHTML_FIND_NEAREST_AFTER) &&
- (y < 0 || (y == 0 && x <= 0)))
+ (y < 0 || (y < 0+m_Height && x < 0+m_Width)))
return wxConstCast(this, wxHtmlCell);
else if ((flags & wxHTML_FIND_NEAREST_BEFORE) &&
- (y > m_Height-1 || (y == m_Height-1 && x >= m_Width)))
+ (y >= 0+m_Height || (y >= 0 && x >= 0)))
return wxConstCast(this, wxHtmlCell);
else
return NULL;
}
-wxPoint wxHtmlCell::GetAbsPos() const
+wxPoint wxHtmlCell::GetAbsPos(wxHtmlCell *rootCell) const
{
wxPoint p(m_PosX, m_PosY);
- for (wxHtmlCell *parent = m_Parent; parent; parent = parent->m_Parent)
+ for (wxHtmlCell *parent = m_Parent; parent && parent != rootCell;
+ parent = parent->m_Parent)
{
p.x += parent->m_PosX;
p.y += parent->m_PosY;
return p;
}
+wxHtmlCell *wxHtmlCell::GetRootCell() const
+{
+ wxHtmlCell *c = wxConstCast(this, wxHtmlCell);
+ while ( c->m_Parent )
+ c = c->m_Parent;
+ return c;
+}
+
unsigned wxHtmlCell::GetDepth() const
{
unsigned d = 0;
// 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);
+ wxCoord w, h, d;
+ dc.GetTextExtent(m_Word, &w, &h, &d);
+ m_Width = w;
+ m_Height = h;
+ m_Descent = d;
+ 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(wxDC& dc,
+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, -1) : selTo - GetAbsPos();
+ wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos();
+
+ // if the selection is entirely within this cell, make sure pt1 < pt2 in
+ // order to make the rest of this function simpler:
+ if ( selFrom != wxDefaultPosition && selTo != wxDefaultPosition &&
+ selFrom.x > selTo.x )
+ {
+ wxPoint tmp = pt1;
+ pt1 = pt2;
+ pt2 = tmp;
+ }
- wxCoord charW, charH;
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:
+ // (include character under caret only if in first half of width)
+#ifdef __WXMAC__
+ // implementation using PartialExtents to support fractional widths
+ wxArrayInt widths ;
+ dc.GetPartialTextExtents(m_Word,widths) ;
+ while( i < len && pt1.x >= widths[i] )
+ i++ ;
+ if ( i < len )
+ {
+ int charW = (i > 0) ? widths[i] - widths[i-1] : widths[i];
+ if ( widths[i] - pt1.x < charW/2 )
+ 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 )
+ if ( pt1.x >= -charW/2 )
{
pos1 += charW;
i++;
}
}
+#endif // __WXMAC__/!__WXMAC__
// in selection:
+ // (include character under caret only if in first half of width)
unsigned j = i;
+#ifdef __WXMAC__
+ while( j < len && pt2.x >= widths[j] )
+ j++ ;
+ if ( j < len )
+ {
+ int charW = (j > 0) ? widths[j] - widths[j-1] : widths[j];
+ if ( widths[j] - pt2.x < charW/2 )
+ 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 )
+ if ( pt2.x >= -charW/2 )
{
pos2 += charW;
j++;
}
}
+#endif // __WXMAC__/!__WXMAC__
pos1 = i;
pos2 = j;
+
+ wxASSERT( pos2 >= pos1 );
}
-void wxHtmlWordCell::SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const
+void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const
{
unsigned p1, p2;
if ( toSelection )
{
- dc.SetBackgroundMode(wxSOLID);
+ dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg));
dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg));
+ dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg),
+ wxBRUSHSTYLE_SOLID));
}
else
{
- dc.SetBackgroundMode(wxTRANSPARENT);
+ dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
dc.SetTextForeground(fg);
dc.SetTextBackground(bg);
+ dc.SetBackground(wxBrush(bg, wxBRUSHSTYLE_SOLID));
}
}
wxHtmlRenderingInfo& info)
{
#if 0 // useful for debugging
- dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
+ 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:
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 ( info.GetState().GetSelectionState() != wxHTML_SEL_OUT &&
- dc.GetBackgroundMode() != wxSOLID )
+ if ( selstate != wxHTML_SEL_OUT &&
+ dc.GetBackgroundMode() != wxBRUSHSTYLE_SOLID )
{
SwitchSelState(dc, info, true);
}
- else if ( info.GetState().GetSelectionState() == wxHTML_SEL_OUT &&
- dc.GetBackgroundMode() == wxSOLID )
+ else if ( selstate == wxHTML_SEL_OUT &&
+ dc.GetBackgroundMode() == wxBRUSHSTYLE_SOLID )
{
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);
+ }
+ }
}
}
+wxCursor wxHtmlWordCell::GetMouseCursor(wxHtmlWindowInterface *window) const
+{
+ if ( !GetLink() )
+ {
+ return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Text);
+ }
+ else
+ {
+ return wxHtmlCell::GetMouseCursor(window);
+ }
+}
wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const
{
// 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);
+ const int part1 = priv.x;
+ const int part2 = priv.y;
+ if ( part1 == part2 )
+ return wxEmptyString;
+ return GetPartAsText(part1, part2);
}
//else: return the whole word below
}
- return m_Word;
+ return GetAllAsText();
}
-wxCursor wxHtmlWordCell::GetCursor() const
+wxString wxHtmlWordWithTabsCell::GetAllAsText() const
{
- if ( !GetLink() )
+ return m_wordOrig;
+}
+
+wxString wxHtmlWordWithTabsCell::GetPartAsText(int begin, int end) const
+{
+ // NB: The 'begin' and 'end' positions are in the _displayed_ text
+ // (stored in m_Word) and not in the text with tabs that should
+ // be copied to clipboard (m_wordOrig).
+ //
+ // NB: Because selection is performed on displayed text, it's possible
+ // to select e.g. "half of TAB character" -- IOW, 'begin' and 'end'
+ // may be in the middle of TAB character expansion into ' 's. In this
+ // case, we copy the TAB character to clipboard once.
+
+ wxASSERT( begin < end );
+
+ const unsigned SPACES_PER_TAB = 8;
+
+ wxString sel;
+
+ int pos = 0;
+ wxString::const_iterator i = m_wordOrig.begin();
+
+ // find the beginning of text to copy:
+ for ( ; pos < begin; ++i )
{
- if ( !gs_cursorText )
- gs_cursorText = new wxCursor(wxCURSOR_IBEAM);
- return *gs_cursorText;
+ if ( *i == '\t' )
+ {
+ pos += 8 - (m_linepos + pos) % SPACES_PER_TAB;
+ if ( pos >= begin )
+ {
+ sel += '\t';
+ }
+ }
+ else
+ {
+ ++pos;
+ }
}
- else
- return wxHtmlCell::GetCursor();
+
+ // copy the content until we reach 'end':
+ for ( ; pos < end; ++i )
+ {
+ const wxChar c = *i;
+ sel += c;
+
+ if ( c == '\t' )
+ pos += 8 - (m_linepos + pos) % SPACES_PER_TAB;
+ else
+ ++pos;
+ }
+
+ return sel;
}
+
//-----------------------------------------------------------------------------
// 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, int* known_pagebreaks, int number_of_pages) const
+bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak,
+ wxArrayInt& known_pagebreaks) const
{
if (!m_CanLiveOnPagebreak)
- return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages);
+ return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks);
- else
- {
- wxHtmlCell *c = GetFirstChild();
- bool rt = FALSE;
- int pbrk = *pagebreak - m_PosY;
+ wxHtmlCell *c = GetFirstChild();
+ bool rt = false;
+ int pbrk = *pagebreak - m_PosY;
- while (c)
- {
- if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
- rt = TRUE;
- c = c->GetNext();
- }
- if (rt)
- *pagebreak = pbrk + m_PosY;
- return rt;
+ while (c)
+ {
+ if (c->AdjustPagebreak(&pbrk, known_pagebreaks))
+ rt = true;
+ c = c->GetNext();
}
+ if (rt)
+ *pagebreak = pbrk + m_PosY;
+ return rt;
}
-
void wxHtmlContainerCell::Layout(int w)
{
wxHtmlCell::Layout(w);
- if (m_LastLayout == w) return;
+ if (m_LastLayout == w)
+ return;
+ m_LastLayout = w;
// VS: Any attempt to layout with negative or zero width leads to hell,
// but we can't ignore such attempts completely, since it sometimes
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)
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;
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)
+ // 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 )
{
- line->SetPos(line->GetPosX() + s_indent +
- (counter++ * step / xcnt),
- ypos + line->GetPosY());
- line = line->GetNext();
+ // first count the cells which will get extra space
+ int total = -1;
+
+ const wxHtmlCell *c;
+ if ( line != cell )
+ {
+ for ( c = line; c != cell; c = c->GetNext() )
+ {
+ if ( c->IsLinebreakAllowed() )
+ {
+ total++;
+ }
+ }
+ }
+
+ // and now extra space to those cells which merit it
+ if ( total )
+ {
+ // first visible cell on line is not moved:
+ while (line !=cell && !line->IsLinebreakAllowed())
+ {
+ line->SetPos(line->GetPosX() + s_indent,
+ line->GetPosY() + ypos);
+ line = line->GetNext();
+ }
+
+ if (line != cell)
+ {
+ 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;
}
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;
}
void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
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 0 // useful for debugging
+ dc.SetPen(*wxRED_PEN);
+ dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
+#endif
+
+ int xlocal = x + m_PosX;
+ int ylocal = y + m_PosY;
+
+ if (m_UseBkColour)
{
- if (m_UseBkColour)
- {
- wxBrush myb = wxBrush(m_BkColour, wxSOLID);
+ wxBrush myb = wxBrush(m_BkColour, wxBRUSHSTYLE_SOLID);
- int real_y1 = mMax(y + m_PosY, view_y1);
- int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
+ int real_y1 = mMax(ylocal, view_y1);
+ int real_y2 = mMin(ylocal + 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);
- }
+ dc.SetBrush(myb);
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.DrawRectangle(xlocal, 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, 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, y + m_PosY + m_Height - 1);
- }
+ if (m_UseBorder)
+ {
+ wxPen mypen1(m_BorderColour1, 1, wxPENSTYLE_SOLID);
+ wxPen mypen2(m_BorderColour2, 1, wxPENSTYLE_SOLID);
+
+ 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);
+ }
- if (m_Cells)
+ if (m_Cells)
+ {
+ // draw container's contents:
+ for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
{
- // draw container's contents:
- for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+
+ // 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,
- x + m_PosX, y + m_PosY, view_y1, view_y2,
+ 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);
+ }
}
}
- // container invisible, just proceed font+color changing:
- else
- {
- DrawInvisible(dc, x, y, info);
- }
}
int wdi;
wxString wd = tag.GetParam(wxT("WIDTH"));
- if (wd[wd.Length()-1] == wxT('%'))
+ if (wd[wd.length()-1] == wxT('%'))
{
wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
{
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;
}
}
else if ( flags & wxHTML_FIND_NEAREST_AFTER )
{
wxHtmlCell *c;
- int y2;
for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
{
- y2 = cell->GetPosY() + cell->GetHeight() - 1;
- if (y2 < y || (y2 == y && cell->GetPosX()+cell->GetWidth()-1 < x))
+ if ( cell->IsFormattingCell() )
continue;
- c = cell->FindCellByPos(x - cell->GetPosX(), y - cell->GetPosY(),
- flags);
+ 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;
}
}
wxHtmlCell *c2, *c = NULL;
for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
{
- if (cell->GetPosY() > y ||
- (cell->GetPosY() == y && cell->GetPosX() > x))
+ 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 - cell->GetPosY(),
- flags);
+ c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
if (c2)
c = c2;
}
}
-void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
+bool wxHtmlContainerCell::ProcessMouseClick(wxHtmlWindowInterface *window,
+ const wxPoint& pos,
+ const wxMouseEvent& event)
{
- wxHtmlCell *cell = FindCellByPos(x, y);
- if ( cell )
- cell->OnMouseClick(parent, x, y, event);
+#if WXWIN_COMPATIBILITY_2_6
+ wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
+ return compat.CallOnMouseClick(this);
}
-
-
-void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const
+void wxHtmlContainerCell::OnMouseClick(wxWindow*,
+ int, int, const wxMouseEvent& event)
{
- int cleft = m_PosX + m_Width, cright = m_PosX; // worst case
- int l, r;
+ wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") );
+ wxHtmlWindowInterface *window = gs_helperOnMouseClick->window;
+ const wxPoint& pos = gs_helperOnMouseClick->pos;
+#endif // WXWIN_COMPATIBILITY_2_6
- for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
- {
- cell->GetHorizontalConstraints(&l, &r);
- if (l < cleft)
- cleft = l;
- if (r > cright)
- cright = r;
- }
-
- cleft -= (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
- cright += (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
+ bool retval = false;
+ wxHtmlCell *cell = FindCellByPos(pos.x, pos.y);
+ if ( cell )
+ retval = cell->ProcessMouseClick(window, pos, event);
- if (left)
- *left = cleft;
- if (right)
- *right = cright;
+#if WXWIN_COMPATIBILITY_2_6
+ gs_helperOnMouseClick->retval = retval;
+#else
+ return retval;
+#endif // WXWIN_COMPATIBILITY_2_6
}
if ( c )
return c;
+ wxHtmlCell *ctmp;
wxHtmlCell *c2 = NULL;
for (c = m_Cells; c; c = c->GetNext())
- c2 = c->GetLastTerminal();
+ {
+ ctmp = c->GetLastTerminal();
+ if ( ctmp )
+ c2 = ctmp;
+ }
return c2;
}
else
}
+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 x, int y,
int WXUNUSED(view_y1), int WXUNUSED(view_y2),
{
state.SetBgColour(m_Colour);
if (state.GetSelectionState() != wxHTML_SEL_IN)
+ {
dc.SetTextBackground(m_Colour);
+ dc.SetBackground(wxBrush(m_Colour, wxBRUSHSTYLE_SOLID));
+ }
else
- dc.SetTextBackground(
- info.GetStyle().GetSelectedTextBgColour(m_Colour));
- dc.SetBackground(wxBrush(m_Colour, wxSOLID));
+ {
+ wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
+ dc.SetTextBackground(c);
+ dc.SetBackground(wxBrush(c, wxBRUSHSTYLE_SOLID));
+ }
}
}
// 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),
// wxHtmlWidgetCell
// ---------------------------------------------------------------------------
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
+
wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
{
int sx, sy;
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);
+ wxScrolledWindow *scrolwin =
+ wxDynamicCast(m_Wnd->GetParent(), wxScrolledWindow);
+ wxCHECK_RET( scrolwin,
+ _T("widget cells can only be placed in wxHtmlWindow") );
+
+ scrolwin->GetViewStart(&stx, &sty);
+ m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx,
+ absy - wxHTML_SCROLL_STEP * sty,
+ m_Width, m_Height);
}
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