X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/371ee4026efaed733fb2d65cda10aa72745b4f9f..0013a77bd1e294fe6d983fc53dac909a07c52b5d:/samples/richedit/wxllist.cpp diff --git a/samples/richedit/wxllist.cpp b/samples/richedit/wxllist.cpp index 2aafe648eb..3a6cdd1b64 100644 --- a/samples/richedit/wxllist.cpp +++ b/samples/richedit/wxllist.cpp @@ -1,7 +1,7 @@ /*-*- c++ -*-******************************************************** * wxllist: wxLayoutList, a layout engine for text and graphics * * * - * (C) 1998-1999 by Karsten Ballüder (Ballueder@usa.net) * + * (C) 1998-2000 by Karsten Ballüder (Ballueder@gmx.net) * * * * $Id$ *******************************************************************/ @@ -60,6 +60,7 @@ #include + /// This should never really get created #define WXLLIST_TEMPFILE "__wxllist.tmp" @@ -72,16 +73,19 @@ { "invalid", "text", "cmd", "icon" }; - void - wxLayoutObject::Debug(void) + wxString + wxLayoutObject::DebugDump(void) const { - WXLO_DEBUG(("%s",g_aTypeStrings[GetType()])); + wxString str; + str.Printf("%s",g_aTypeStrings[GetType()]); + return str; } #else -# define TypeString(t) "" -# define WXLO_DEBUG(x) +# define TypeString(t) "" +# define WXLO_DEBUG(x) #endif + // FIXME under MSW, this constant is needed to make the thing properly redraw // itself - I don't know where the size calculation error is and I can't // waste time looking for it right now. Search for occurences of @@ -165,6 +169,7 @@ bool Contains(const wxRect &r, const wxPoint &p) //@} +static void ReadString(wxString &to, wxString &from) { to = ""; @@ -187,7 +192,7 @@ wxLayoutObject::Read(wxString &istr) { wxString tmp; ReadString(tmp, istr); - int type = -1; + int type = WXLO_TYPE_INVALID; sscanf(tmp.c_str(),"%d", &type); switch(type) @@ -370,11 +375,14 @@ wxLayoutObjectText::Layout(wxDC &dc, class wxLayoutList *llist) #ifdef WXLAYOUT_DEBUG -void -wxLayoutObjectText::Debug(void) +wxString +wxLayoutObjectText::DebugDump(void) const { - wxLayoutObject::Debug(); - WXLO_DEBUG((" `%s`", m_Text.c_str())); + wxString str; + str = wxLayoutObject::DebugDump(); + wxString str2; + str2.Printf(" `%s`", m_Text.c_str()); + return str+str2; } #endif @@ -412,7 +420,7 @@ wxLayoutObjectIcon::Write(wxString &ostr) wxString file = wxGetTempFileName("wxloexport"); - ostr << WXLO_TYPE_ICON << '\n' + ostr << (int) WXLO_TYPE_ICON << '\n' << file << '\n'; m_Icon->SaveFile(file, WXLO_BITMAP_FORMAT); } @@ -449,7 +457,7 @@ wxLayoutObjectIcon::wxLayoutObjectIcon(wxBitmap *icon) { m_Icon = icon; if(! m_Icon) - m_Icon = new wxIcon; + m_Icon = new wxBitmap; } void @@ -553,25 +561,25 @@ wxLayoutObjectCmd::Copy(void) void wxLayoutObjectCmd::Write(wxString &ostr) { - ostr << WXLO_TYPE_CMD << '\n' - << m_StyleInfo->family << '\n' - << m_StyleInfo->size << '\n' - << m_StyleInfo->style << '\n' - << m_StyleInfo->weight << '\n' - << m_StyleInfo->underline << '\n' - << m_StyleInfo->m_fg_valid << '\n' - << m_StyleInfo->m_bg_valid << '\n'; + ostr << (int) WXLO_TYPE_CMD << '\n' + << (int) m_StyleInfo->family << '\n' + << (int) m_StyleInfo->size << '\n' + << (int) m_StyleInfo->style << '\n' + << (int) m_StyleInfo->weight << '\n' + << (int) m_StyleInfo->underline << '\n' + << (int) m_StyleInfo->m_fg_valid << '\n' + << (int) m_StyleInfo->m_bg_valid << '\n'; if(m_StyleInfo->m_fg_valid) { - ostr << m_StyleInfo->m_fg.Red() << '\n' - << m_StyleInfo->m_fg.Green() << '\n' - << m_StyleInfo->m_fg.Blue() << '\n'; + ostr << (int) m_StyleInfo->m_fg.Red() << '\n' + << (int) m_StyleInfo->m_fg.Green() << '\n' + << (int) m_StyleInfo->m_fg.Blue() << '\n'; } if(m_StyleInfo->m_bg_valid) { - ostr << m_StyleInfo->m_bg.Red() << '\n' - << m_StyleInfo->m_bg.Green() << '\n' - << m_StyleInfo->m_bg.Blue() << '\n'; + ostr << (int) m_StyleInfo->m_bg.Red() << '\n' + << (int) m_StyleInfo->m_bg.Green() << '\n' + << (int) m_StyleInfo->m_bg.Blue() << '\n'; } } /* static */ @@ -661,10 +669,9 @@ wxLayoutLine::wxLayoutLine(wxLayoutLine *prev, wxLayoutList *llist) m_Length = 0; m_updateLeft = -1; - MarkDirty(0); - m_Previous = prev; m_Next = NULL; + MarkDirty(0); m_LineNumber = 0; RecalculatePosition(llist); @@ -1269,7 +1276,9 @@ wxLayoutLine::Break(CoordType xpos, wxLayoutList *llist) wxLayoutLine *newLine = new wxLayoutLine(this, llist); // split object at i: - if((**i).GetType() == WXLO_TYPE_TEXT && offset != 0) + if((**i).GetType() == WXLO_TYPE_TEXT + && offset != 0 + && offset != (**i).GetLength() ) { wxString left, right; wxLayoutObjectText *tobj = (wxLayoutObjectText *) *i; @@ -1300,6 +1309,130 @@ wxLayoutLine::Break(CoordType xpos, wxLayoutList *llist) return newLine; } +bool +wxLayoutLine::Wrap(CoordType wrapmargin, wxLayoutList *llist) +{ + if(GetLength() < wrapmargin) + return FALSE; // nothing to do + + // find the object which covers the wrapmargin: + CoordType offset; + wxLOiterator i = FindObject(wrapmargin, &offset); + wxCHECK_MSG( i != NULLIT, FALSE, "Cannot find object covering wrapmargin."); + + // from this object on, the rest of the line must be copied to the + // next one: + wxLOiterator copyObject = NULLIT; + // if we split a text-object, we must pre-pend some text to the + // next line later on, remember it here: + wxString prependText = ""; + // we might need to adjust the cursor position later, so remember it + size_t xpos = llist->GetCursorPos().x; + // by how much did we shorten the current line: + size_t shorter = 0; + // remember cursor location of object + size_t objectCursorPos = 0; + + size_t breakpos = offset; + + if( (**i).GetType() != WXLO_TYPE_TEXT ) + { + // break before a non-text object + copyObject = i; + } + else + { + bool foundSpace = FALSE; + do + { +// while(i != NULLIT && (**i).GetType() != WXLO_TYPE_TEXT) +// i--; + // try to find a suitable place to split the object: + wxLayoutObjectText *tobj = (wxLayoutObjectText *)*i; + if((**i).GetType() == WXLO_TYPE_TEXT + && tobj->GetText().Length() >= breakpos) + { + do + { + foundSpace = isspace(tobj->GetText()[breakpos]) != 0; + if ( foundSpace ) + break; + } + while ( breakpos-- > 0 ); + } + else + { + breakpos = 0; + } + + if(! foundSpace) // breakpos == 0! + { + if(i == m_ObjectList.begin()) + return FALSE; // could not break line + else + { + i--; + while(i != m_ObjectList.begin() + && (**i).GetType() != WXLO_TYPE_TEXT ) + { + i--; + } + breakpos = (**i).GetLength(); + } + } + }while(! foundSpace); + // before we actually break the object, we need to know at which + // cursorposition it starts, so we can restore the cursor if needed: + if( this == llist->GetCursorLine() && xpos >= breakpos ) + { + for(wxLOiterator j = m_ObjectList.begin(); + j != NULLIT && j != i; j++) + objectCursorPos += (**j).GetLength(); + } + // now we know where to break it: + wxLayoutObjectText *tobj = (wxLayoutObjectText *)*i; + shorter = tobj->GetLength() - breakpos; + // remember text to copy from this object + prependText = tobj->GetText().Mid(breakpos+1); + tobj->SetText(tobj->GetText().Left(breakpos)); + // copy every following object: + copyObject = i; copyObject ++; + } + + // make sure there is an empty m_Next line: + (void) new wxLayoutLine(this, llist); + wxASSERT(m_Next); + // We need to move this and all following objects to the next + // line. Starting from the end of line, to keep the order right. + if(copyObject != NULLIT) + { + wxLOiterator j; + for(j = m_ObjectList.tail(); j != copyObject; j--) + m_Next->Prepend(*j); + m_Next->Prepend(*copyObject); + // and now remove them from this list: + while( copyObject != m_ObjectList.end() ) + { + shorter += (**copyObject).GetLength(); + m_ObjectList.remove(copyObject); // remove without deleting it + } + } + m_Length -= shorter; + + if(prependText.Length() > 0) + m_Next->Insert(0, prependText); + + // do we need to adjust the cursor position? + if( this == llist->GetCursorLine() && xpos >= breakpos) + { + xpos = objectCursorPos + (xpos - objectCursorPos - breakpos - + ((xpos > breakpos) ? 1 : 0 )); + wxASSERT(xpos >= 0); + llist->MoveCursorTo( wxPoint( xpos, m_Next->GetLineNumber()) ); + } + return TRUE; // we wrapped the line +} + void wxLayoutLine::ReNumber(void) { @@ -1385,7 +1518,7 @@ wxLayoutLine::GetWrapPosition(CoordType column) { do { - if( isspace(((wxLayoutObjectText*)*i)->GetText().c_str()[(size_t)offset])) + if(isspace(((wxLayoutObjectText*)*i)->GetText().c_str()[(size_t)offset])) return column; else { @@ -1414,25 +1547,23 @@ wxLayoutLine::GetWrapPosition(CoordType column) i++; } if(i == NULLIT) return -1; //why should this happen? + + // now we are behind the one long text object and need to find the + // first space in it + for(offset = 0; offset < (**i).GetLength(); offset++) + if( isspace(((wxLayoutObjectText*)*i)->GetText().c_str()[(size_t)offset])) + { + return pos+offset; + } pos += (**i).GetLength(); - i++; - while(i != NULLIT && (**i).GetType() != WXLO_TYPE_TEXT) - { - pos += (**i).GetLength(); - i++; - } - if(i == NULLIT) return -1; //this is possible, if there is only one text object - // now we are at the second text object: - pos -= (**i).GetLength(); - return pos; // in front of it + return pos; } #ifdef WXLAYOUT_DEBUG void -wxLayoutLine::Debug(void) +wxLayoutLine::Debug(void) const { - wxString tmp; wxPoint pos = GetPosition(); WXLO_DEBUG(("Line %ld, Pos (%ld,%ld), Height %ld, BL %ld, Font: %d", (long int) GetLineNumber(), @@ -1441,7 +1572,9 @@ wxLayoutLine::Debug(void) (long int) m_BaseLine, (int) m_StyleInfo.family)); if(m_ObjectList.begin() != NULLIT) - (**m_ObjectList.begin()).Debug(); + { + WXLO_DEBUG(((**m_ObjectList.begin()).DebugDump().c_str())); + } } #endif @@ -1588,9 +1721,22 @@ wxLayoutList::Read(wxString &istr) while(istr.Length()) { - wxLayoutObject *obj = wxLayoutObject::Read(istr); - if(obj) - Insert(obj); + // check for a linebreak: + wxString tmp; + tmp = istr.BeforeFirst('\n'); + int type = WXLO_TYPE_INVALID; + sscanf(tmp.c_str(),"%d", &type); + if(type == WXLO_TYPE_LINEBREAK) + { + LineBreak(); + istr = istr.AfterFirst('\n'); + } + else + { + wxLayoutObject *obj = wxLayoutObject::Read(istr); + if(obj) + Insert(obj); + } } /* Now we use the current_si to restore our last font settings: */ Insert(new wxLayoutObjectCmd(current_si)); @@ -1742,6 +1888,7 @@ wxLayoutList::MoveCursorVertically(int n) { n--; m_CursorPos.y ++; + last = m_CursorLine; m_CursorLine = m_CursorLine->GetNextLine(); } if(! m_CursorLine) @@ -1979,9 +2126,10 @@ wxLayoutList::Insert(wxString const &text) AddCursorPosToUpdateRect(); + wxASSERT(m_CursorLine->GetLength() >= m_CursorPos.x); + if ( !m_CursorLine->Insert(m_CursorPos.x, text) ) return false; - m_CursorPos.x += text.Length(); m_movedCursor = true; @@ -2072,29 +2220,22 @@ wxLayoutList::LineBreak(void) bool wxLayoutList::WrapLine(CoordType column) { - if(m_CursorPos.x <= column || column < 1) - return false; // do nothing yet - else - { - CoordType xpos = m_CursorLine->GetWrapPosition(column); - if(xpos == -1) - return false; // cannot break line - //else: - CoordType newpos = m_CursorPos.x - xpos - 1; - m_CursorPos.x = xpos; - - AddCursorPosToUpdateRect(); - - LineBreak(); - Delete(1); // delete the space - m_CursorPos.x = newpos; - - m_CursorLine->MarkDirty(); - - m_movedCursor = true; + return m_CursorLine->Wrap(column, this); +} - return true; +bool +wxLayoutList::WrapAll(CoordType column) +{ + wxLayoutLine *line = m_FirstLine; + if(! line) + return FALSE; + bool rc = TRUE; + while(line && rc) + { + rc &= line->Wrap(column, this); + line = line->GetNextLine(); } + return rc; } bool @@ -2258,6 +2399,9 @@ wxLayoutList::Layout(wxDC &dc, CoordType bottom, bool forceAll, // If one line was dirty, we need to re-calculate all // following lines, too. bool wasDirty = forceAll; + // we need to layout until we reach at least the cursor line, + // otherwise we won't be able to scroll to it + bool cursorReached = false; wxLayoutLine *line = m_FirstLine; while(line) { @@ -2267,6 +2411,8 @@ wxLayoutList::Layout(wxDC &dc, CoordType bottom, bool forceAll, // if any previous line was dirty, we need to layout all // following lines: wasDirty + // go on until we find the cursorline + || ! cursorReached // layout dirty lines: || line->IsDirty() // always layout the cursor line toupdate the cursor @@ -2274,6 +2420,9 @@ wxLayoutList::Layout(wxDC &dc, CoordType bottom, bool forceAll, || line == m_CursorLine // or if it's the line we are asked to look for: || (cpos && line->GetLineNumber() == cpos->y) + // layout at least the desired region: + || (bottom == -1 ) + || (line->GetPosition().y <= bottom) ) { if(line->IsDirty()) @@ -2295,17 +2444,20 @@ wxLayoutList::Layout(wxDC &dc, CoordType bottom, bool forceAll, if ( csize ) *csize = m_CursorSize; } + cursorReached = TRUE; } else + { if(cpos && line->GetLineNumber() == cpos->y) + { line->Layout(dc, this, cpos, csize, NULL, cpos->x); - else - line->Layout(dc, this); - // little condition to speed up redrawing: - if(bottom != -1 && line->GetPosition().y > bottom) - break; + cursorReached = TRUE; + } + else + line->Layout(dc, this); + } } line = line->GetNextLine(); } @@ -2381,7 +2533,7 @@ wxLayoutList::Draw(wxDC &dc, } InvalidateUpdateRect(); - WXLO_DEBUG(("Selection is %s : l%d,%ld/%ld,%ld", + WXLO_DEBUG(("Selection is %s : %ld,%ld/%ld,%ld", m_Selection.m_valid ? "valid" : "invalid", m_Selection.m_CursorA.x, m_Selection.m_CursorA.y, m_Selection.m_CursorB.x, m_Selection.m_CursorB.y)); @@ -2496,7 +2648,7 @@ wxLayoutList::DrawCursor(wxDC &dc, bool active, wxPoint const &translate) #ifdef WXLAYOUT_DEBUG WXLO_DEBUG(("Drawing cursor (%ld,%ld) at %ld,%ld, size %ld,%ld, line: %ld, len %ld", (long)m_CursorPos.x, (long)m_CursorPos.y, - (long)coords.x, (long)coords.y, + (long)coords.x, (long)coords.y, (long)m_CursorSize.x, (long)m_CursorSize.y, (long)m_CursorLine->GetLineNumber(), (long)m_CursorLine->GetLength())); @@ -2518,7 +2670,8 @@ wxLayoutList::DrawCursor(wxDC &dc, bool active, wxPoint const &translate) dc.DrawRectangle(coords.x, coords.y, m_CursorSize.x, m_CursorSize.y); SetUpdateRect(coords.x, coords.y); - SetUpdateRect(coords.x+m_CursorSize.x, coords.y+m_CursorSize.y); + SetUpdateRect(coords.x+m_CursorSize.x, + coords.y+m_CursorSize.y); } else { @@ -2879,7 +3032,7 @@ wxLayoutList::GetSelection(wxLayoutDataObject *wxlo, bool invalidate) while((exp = wxLayoutExport( &status, WXLO_EXPORT_AS_OBJECTS)) != NULL) { if(exp->type == WXLO_EXPORT_EMPTYLINE) - ; //FIXME missing support for linebreaks in string format + string << (int) WXLO_TYPE_LINEBREAK << '\n'; else exp->content.object->Write(string); delete exp;