/////////////////////////////////////////////////////////////////////////////
-// Name: htmlcell.cpp
+// Name: src/html/htmlcell.cpp
// Purpose: wxHtmlCell - basic element of HTML output
// Author: Vaclav Slavik
// RCS-ID: $Id$
#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 "wx/dynarray.h"
#include <stdlib.h>
-//-----------------------------------------------------------------------------
-// Global variables
-//-----------------------------------------------------------------------------
-
-static wxCursor *gs_cursorLink = NULL;
-static wxCursor *gs_cursorText = NULL;
-
-
//-----------------------------------------------------------------------------
// Helper classes
//-----------------------------------------------------------------------------
m_Next = NULL;
m_Parent = NULL;
m_Width = m_Height = m_Descent = 0;
+ 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
-void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
- const wxMouseEvent& event)
+bool wxHtmlCell::ProcessMouseClick(wxHtmlWindowInterface *window,
+ const wxPoint& pos,
+ const wxMouseEvent& event)
{
- wxHtmlLinkInfo *lnk = GetLink(x, y);
- if (lnk != NULL)
+ 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 *, int, int, const wxMouseEvent& event)
+{
+ 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)
}
-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(const wxString& word, const wxDC& dc) : wxHtmlCell()
{
m_Word = word;
- dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
+ 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;
}
wxPoint pt2 = (selTo == wxDefaultPosition) ?
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;
+ }
+
unsigned len = m_Word.length();
unsigned i = 0;
pos1 = 0;
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++ ;
-#else // __WXMAC__
+ 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++ ;
-#else // __WXMAC__
+ 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++;
return m_Word;
}
-wxCursor wxHtmlWordCell::GetCursor() const
+wxCursor wxHtmlWordCell::GetMouseCursor(wxHtmlWindowInterface *window) const
{
if ( !GetLink() )
{
- if ( !gs_cursorText )
- gs_cursorText = new wxCursor(wxCURSOR_IBEAM);
- return *gs_cursorText;
+ return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Text);
}
else
- return wxHtmlCell::GetCursor();
+ {
+ return wxHtmlCell::GetMouseCursor(window);
+ }
}
}
-
-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);
return;
}
- wxHtmlCell *cell = m_Cells,
- *line = m_Cells;
wxHtmlCell *nextCell;
long xpos = 0, ypos = m_IndentTop;
int xdelta = 0, ybasicpos = 0, ydiff;
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 ( step > 0 )
{
// first count the cells which will get extra space
- int total = 0;
+ int total = -1;
const wxHtmlCell *c;
if ( line != cell )
{
- for ( c = line->GetNext(); c != cell; c = c->GetNext() )
+ for ( c = line; c != cell; c = c->GetNext() )
{
if ( c->IsLinebreakAllowed() )
{
// 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);
+ // 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();
+ }
- line = line->GetNext();
for ( int n = 0; line != cell; line = line->GetNext() )
{
if ( line->IsLinebreakAllowed() )
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);
}
-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::OnMouseClick(wxWindow*,
+ int, int, const wxMouseEvent& event)
+{
+ 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
+
+ bool retval = false;
+ wxHtmlCell *cell = FindCellByPos(pos.x, pos.y);
+ if ( cell )
+ retval = cell->ProcessMouseClick(window, pos, event);
+
+#if WXWIN_COMPATIBILITY_2_6
+ gs_helperOnMouseClick->retval = retval;
+#else
+ return retval;
+#endif // WXWIN_COMPATIBILITY_2_6
+}
wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
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