fixes
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@949 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Karsten Ballüder
parent
e4d068605f
commit
9905086c2d
@ -1,5 +1,5 @@
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/*-*- c++ -*-********************************************************
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* wxFTCanvas: a canvas for editing formatted text *
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* wxllist: wxLayoutList, a layout engine for text and graphics *
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* *
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* (C) 1998 by Karsten Ballüder (Ballueder@usa.net) *
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* *
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@ -16,6 +16,10 @@
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first character. For all non-text objects, the cursor positions
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are 0==before or 1==behind. So that all non-text objects count as
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one cursor position.
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- Linebreaks are at the end of a line, that is a line like "abc\n"
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is four cursor positions long. This makes sure that cursor
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positions are "as expected", i.e. in "abc\ndef" the 'd' would be
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at positions (x=0,y=1).
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*/
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/*
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@ -24,6 +28,7 @@
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- new cursor movement calculations
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- moving lines and moving across linebreaks still broken
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- word wrap
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- blinking cursor
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- mouse click positions cursor
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- selection (SetMark(), GetSelection())
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@ -72,16 +77,18 @@ static const char *g_aTypeStrings[] =
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# define wxLayoutDebug wxLogDebug
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# define WXL_VAR(x) cerr << #x " = " << x << endl;
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# define WXL_DBG_POINT(p) wxLogDebug(#p ": (%d, %d)", p.x, p.y)
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# define WXL_TRACE(f) wxLogDebug(#f ": ")
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# define WXL_DBG_POINT(p) wxLayoutDebug(#p ": (%d, %d)", p.x, p.y)
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# define WXL_TRACE(f) wxLayoutDebug(#f ": ")
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# define TypeString(t) g_aTypeStrings[t]
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void
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wxLayoutObjectBase::Debug(void)
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{
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CoordType bl = 0;
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wxLogDebug("%s: size = %dx%d, bl = %d",
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TypeString(GetType()), GetSize(&bl).x, GetSize(&bl).y, bl);
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wxLayoutDebug("%s: size = %dx%d, pos=%d,%d, bl = %d",
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TypeString(GetType()), GetSize(&bl).x,
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GetSize(&bl).y,
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GetPosition().x, GetPosition().y, bl);
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}
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#else
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@ -140,7 +147,7 @@ void
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wxLayoutObjectText::Debug(void)
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{
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wxLayoutObjectBase::Debug();
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wxLogDebug(" `%s`", m_Text.c_str());
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wxLayoutDebug(" `%s`", m_Text.c_str());
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}
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#endif
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@ -255,7 +262,7 @@ void
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wxLayoutList::LineBreak(void)
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{
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Insert(new wxLayoutObjectLineBreak);
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m_CursorPos.x = 0; m_CursorPos.y++;
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// m_CursorPos.x = 0; m_CursorPos.y++;
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}
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void
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@ -337,8 +344,6 @@ wxLayoutList::Layout(wxDC &dc, wxLayoutMargins *margins)
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// we need to count cursor positions
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wxPoint cursorPos = wxPoint(0,0);
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wxLayoutObjectBase *cursorObject = NULL; // let's find it again
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if(margins)
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{
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position.y = margins->top;
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@ -404,6 +409,10 @@ wxLayoutList::Layout(wxDC &dc, wxLayoutMargins *margins)
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headOfLine++;
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position_HeadOfLine = position;
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}
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#if defined( USE_NEW_CURSORCODE )
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if(i == m_CursorObject)
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CalculateCursor(dc);
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#else
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if(cursorObject == NULL && cursorPos.y == m_CursorPos.y) // look for cursor
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{
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if(cursorPos.x >= m_CursorPos.x &&
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@ -413,6 +422,7 @@ wxLayoutList::Layout(wxDC &dc, wxLayoutMargins *margins)
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CalculateCursor(dc);
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}
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}
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#endif
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i++;
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}
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while(i != end());
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@ -467,7 +477,6 @@ wxLayoutList::EraseAndDraw(wxDC &dc, iterator start)
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wxPoint p = (**start).GetPosition();
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WXL_VAR(p.x);WXL_VAR(p.y);
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//FIXME: wxGTK: MaxX()/MaxY() broken
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//WXL_VAR(dc.MaxX()); WXL_VAR(dc.MaxY());
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dc.SetBrush(*wxWHITE_BRUSH);
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@ -495,25 +504,24 @@ wxLayoutList::CalculateCursor(wxDC &dc)
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}
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wxLayoutObjectBase &obj = **FindCurrentObject(&offset);
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WXL_VAR(offset);
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DrawCursor(dc,true); // erase it
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m_CursorCoords = obj.GetPosition();
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WXL_VAR(m_CursorCoords.x);
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if(obj.GetType() == WXLO_TYPE_TEXT)
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{
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wxLayoutObjectText *tobj = (wxLayoutObjectText *)&obj;
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String & str = tobj->GetText();
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String sstr = str.substr(0,offset);
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WXL_VAR(sstr);
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dc.GetTextExtent(sstr,&width,&height,&descent);
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WXL_VAR(width);
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m_CursorCoords = wxPoint(m_CursorCoords.x+width,
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m_CursorCoords.y);
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m_CursorSize = wxPoint(2,height);
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}
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else if(obj.GetType() == WXLO_TYPE_LINEBREAK)
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{
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m_CursorCoords = wxPoint(0, m_CursorCoords.y);
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if(m_CursorOffset == 1) // behind linebreak
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m_CursorCoords = wxPoint(0, m_CursorCoords.y + baseLineSkip);
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//m_CursorCoords = wxPoint(0, m_CursorCoords.y);
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m_CursorSize = wxPoint(2,baseLineSkip);
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}
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else
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@ -525,7 +533,6 @@ wxLayoutList::CalculateCursor(wxDC &dc)
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m_CursorSize = wxPoint(2, obj.GetSize().y);
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if(m_CursorSize.y < 1) m_CursorSize.y = baseLineSkip;
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}
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WXL_VAR(m_CursorCoords.x);
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m_CursorMoved = false; // coords are valid
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}
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@ -574,29 +581,16 @@ wxLayoutList::DrawCursor(wxDC &dc, bool erase)
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void
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wxLayoutList::Debug(void)
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{
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CoordType offs;
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wxLayoutObjectList::iterator i;
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wxLogDebug("------------------------debug start-------------------------");
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wxLayoutDebug("------------------------ debug start ------------------------");
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for(i = begin(); i != end(); i++)
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(*i)->Debug();
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wxLogDebug("-----------------------debug end----------------------------");
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wxLayoutDebug("-------------------------- list end -------------------------");
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// show current object:
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ShowCurrentObject();
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i = FindCurrentObject(&offs);
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wxLogDebug(" line length: %l", (long int) GetLineLength(i,offs));
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if(i == end())
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{
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wxLogDebug("<<no object found>>");
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return; // FIXME we should set cursor position to maximum allowed
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// value then
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}
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if((*i)->GetType() == WXLO_TYPE_TEXT)
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wxLogDebug(" \"%s\", offs=%d",((wxLayoutObjectText *)(*i))->GetText().c_str(), (int) offs);
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else
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wxLogDebug(g_aTypeStrings[(*i)->GetType()]);
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wxLayoutDebug("------------------------- debug end -------------------------");
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}
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void
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@ -605,24 +599,20 @@ wxLayoutList::ShowCurrentObject()
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CoordType offs;
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wxLayoutObjectList::iterator i = FindCurrentObject(&offs);
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i = FindCurrentObject(&offs);
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wxLogDebug(" Line length: %d", GetLineLength(i));
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if(i == end())
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{
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wxLogDebug("<<no object found>>");
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return; // FIXME we should set cursor position to maximum allowed
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// value then
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}
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if((*i)->GetType() == WXLO_TYPE_TEXT)
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wxLogDebug(" \"%s\", offs: %d",
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((wxLayoutObjectText *)(*i))->GetText().c_str(), offs);
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else
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wxLogDebug(" %s", TypeString((*i)->GetType()));
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wxLayoutDebug("CursorPos (%d, %d)", (int) m_CursorPos.x, (int) m_CursorPos.y);
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wxLayoutDebug("CursorOffset = %d", (int) m_CursorOffset);
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wxLayoutDebug("CursorObject = %p", m_CursorObject);
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wxLayoutDebug("Line length: %d", GetLineLength(i));
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if(i == iterator(NULL))
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wxLayoutDebug("<<no object found>>");
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else
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{
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if((*i)->GetType() == WXLO_TYPE_TEXT)
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wxLayoutDebug(" \"%s\", offs: %d", ((wxLayoutObjectText *)(*i))->GetText().c_str(), offs);
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else
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wxLayoutDebug(" %s", TypeString((*i)->GetType()));
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}
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}
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#endif
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@ -728,119 +718,11 @@ wxLayoutList::FindObjectCursor(wxPoint *cpos, CoordType *offset)
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wxLayoutObjectList::iterator
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wxLayoutList::FindCurrentObject(CoordType *offset)
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{
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#if ! defined( USE_NEW_CURSORCODE )
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wxLayoutObjectList::iterator obj = end();
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obj = FindObjectCursor(&m_CursorPos, offset);
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if(obj == end()) // not ideal yet
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{
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obj = tail();
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if(obj != end()) // tail really exists
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*offset = (*obj)->CountPositions(); // at the end of it
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}
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return obj;
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#else
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if(offset)
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*offset = m_CursorOffset;
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return m_CursorObject;
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#endif
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}
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#if ! defined( USE_NEW_CURSORCODE )
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bool
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wxLayoutList::MoveCursor(int dx, int dy)
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{
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CoordType offs, lineLength;
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wxLayoutObjectList::iterator i;
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m_CursorMoved = true;
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bool rc = true; // have we moved?
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//FIXME calculate cursor object & offset for y movements
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if(dy > 0 && m_CursorPos.y < m_MaxLine)
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m_CursorPos.y += dy;
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else if(dy < 0 && m_CursorPos.y > 0)
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m_CursorPos.y += dy; // dy is negative
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if(m_CursorPos.y < 0)
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{
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m_CursorPos.y = 0;
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rc = false;
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}
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else if (m_CursorPos.y > m_MaxLine)
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{
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m_CursorPos.y = m_MaxLine;
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rc = false;
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}
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while(dx > 0)
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{
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i = FindCurrentObject(&offs);
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lineLength = GetLineLength(i,offs);
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if(m_CursorPos.x < lineLength)
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{
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m_CursorPos.x ++;
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dx--;
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continue;
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}
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else
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{
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if(m_CursorPos.y < m_MaxLine)
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{
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m_CursorPos.y++;
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m_CursorPos.x = 0;
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dx--;
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}
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else
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{
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rc = false;
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break; // cannot move there
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}
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}
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}
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while(dx < 0)
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{
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if(m_CursorPos.x > 0)
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{
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m_CursorPos.x --;
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dx++;
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}
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else
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{
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if(m_CursorPos.y > 0)
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{
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m_CursorPos.y --;
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m_CursorPos.x = 0;
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i = FindCurrentObject(&offs);
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lineLength = GetLineLength(i,offs);
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m_CursorPos.x = lineLength;
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dx++;
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continue;
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}
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else
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{
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rc = false;
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break; // cannot move left any more
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}
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}
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}
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// final adjustment:
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i = FindCurrentObject(&offs);
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lineLength = GetLineLength(i,offs);
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if(m_CursorPos.x > lineLength)
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{
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m_CursorPos.x = lineLength;
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rc = false;
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}
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#ifdef WXLAYOUT_DEBUG
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ShowCurrentObject();
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#endif
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return rc;
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}
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#else
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bool
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wxLayoutList::MoveCursor(int dx, int dy)
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{
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@ -854,46 +736,47 @@ wxLayoutList::MoveCursor(int dx, int dy)
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m_CursorPos.y + dy);
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// check for bounds
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if(newPos.x < 0) newPos.x = 0;
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//if(newPos.x < 0) newPos.x = 0;
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if(newPos.y < 0) newPos.y = 0;
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else if(newPos.y > m_MaxLine) newPos.y = m_MaxLine;
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if(newPos.y > m_CursorPos.y ||
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newPos.y == m_CursorPos.y &&
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newPos.x >= m_CursorPos.x)
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direction = up;
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else
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direction = down;
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else
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direction = up;
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// now move cursor forwards until at the new position:
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// first, go to the right line:
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while(newPos.y != m_CursorPos.y)
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{
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if(direction == up)
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if(direction == down)
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{
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m_CursorPos.x +=
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(**m_CursorObject).CountPositions() - m_CursorOffset;
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if(m_CursorObject == tail())
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break; // can't go any further
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if((**m_CursorObject).GetType() == WXLO_TYPE_LINEBREAK
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&& m_CursorOffset == 1)
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&& m_CursorOffset == 0)
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{
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m_CursorPos.y++; m_CursorPos.x = 0;
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}
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m_CursorObject ++; m_CursorOffset = 0;
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}
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else // down
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else // up
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{
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m_CursorPos.x -= m_CursorOffset;
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if(m_CursorObject == begin())
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break; // can't go any further
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if((**m_CursorObject).GetType() == WXLO_TYPE_LINEBREAK &&
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m_CursorOffset == 0)
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m_CursorOffset == 1)
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{
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m_CursorPos.y--;
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m_CursorPos.x = GetLineLength(m_CursorObject);
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}
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m_CursorPos.x -= m_CursorOffset;
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m_CursorObject --; m_CursorOffset = (**m_CursorObject).CountPositions();
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}
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}
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@ -901,30 +784,47 @@ wxLayoutList::MoveCursor(int dx, int dy)
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newPos.y = m_CursorPos.y; // exited by break
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// now line is right, go to right column:
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direction = newPos.x >= m_CursorPos.x ? up : down;
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direction = newPos.x >= m_CursorPos.x ? down : up;
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while(newPos.x != m_CursorPos.x)
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{
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if(direction == up)
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if(direction == down)
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{
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diff = newPos.x - m_CursorPos.x;
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if(diff >= (**m_CursorObject).CountPositions())
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if(diff > (**m_CursorObject).CountPositions()-m_CursorOffset)
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{
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m_CursorPos.x += (**m_CursorObject).CountPositions();
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m_CursorPos.x +=
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(**m_CursorObject).CountPositions()-m_CursorOffset;
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if((**m_CursorObject).GetType() == WXLO_TYPE_LINEBREAK &&
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m_CursorOffset == 0)
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m_CursorPos = wxPoint(0, m_CursorPos.y+1);
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if(m_CursorObject == tail())
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{
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m_CursorOffset = (**m_CursorObject).CountPositions();
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break; // cannot go further
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}
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m_CursorObject++; m_CursorOffset = 0;
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}
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else
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{
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if((**m_CursorObject).GetType() == WXLO_TYPE_LINEBREAK)
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{
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newPos.y++; newPos.x -= m_CursorPos.x+1;
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m_CursorPos = wxPoint(0,m_CursorPos.y+1);
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}
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else
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m_CursorPos.x += diff;
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m_CursorOffset += diff;
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}
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}
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else // down
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else // up
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{
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if(m_CursorPos.x == 0 && m_CursorOffset == 1 &&
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(**m_CursorObject).GetType() == WXLO_TYPE_LINEBREAK) // can we go further up?
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{
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m_CursorPos.y--;
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newPos.y--;
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m_CursorOffset = 0;
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m_CursorPos.x = GetLineLength(m_CursorObject)-1;
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newPos.x += m_CursorPos.x+1;
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continue;
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}
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diff = m_CursorPos.x - newPos.x;
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if(diff >= m_CursorOffset)
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{
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@ -935,6 +835,7 @@ wxLayoutList::MoveCursor(int dx, int dy)
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break; // cannot go further
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}
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m_CursorObject--;
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m_CursorPos.x -= m_CursorOffset;
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m_CursorOffset = (**m_CursorObject).CountPositions();
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}
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else
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@ -946,7 +847,6 @@ wxLayoutList::MoveCursor(int dx, int dy)
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}
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return true; // FIXME: when return what?
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}
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#endif
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void
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wxLayoutList::Delete(CoordType count)
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@ -956,8 +856,6 @@ wxLayoutList::Delete(CoordType count)
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if(!m_Editable)
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return;
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WXL_VAR(count);
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m_bModified = true;
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CoordType offs;
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@ -1053,7 +951,10 @@ wxLayoutList::Insert(wxLayoutObjectBase *obj)
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CoordType offs;
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wxLayoutObjectList::iterator i = FindCurrentObject(&offs);
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// WXL_TRACE(Insert(obj));
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// if(i != iterator(NULL) && (*obj).GetType() == WXLO_TYPE_LINEBREAK)
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// {
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// m_CursorPos.x = 0; m_CursorPos.y ++;
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// }
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if(i == end())
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{
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@ -1069,14 +970,8 @@ wxLayoutList::Insert(wxLayoutObjectBase *obj)
|
||||
else if((*i)->GetType() == WXLO_TYPE_TEXT && offs != (*i)->CountPositions())
|
||||
{
|
||||
wxLayoutObjectText *tobj = (wxLayoutObjectText *) *i;
|
||||
#ifdef WXLAYOUT_DEBUG
|
||||
wxLayoutDebug("text: %s", tobj->GetText().c_str());
|
||||
WXL_VAR(offs);
|
||||
#endif
|
||||
String left = tobj->GetText().substr(0,offs); // get part before cursor
|
||||
WXL_VAR(left.c_str());
|
||||
tobj->GetText() = tobj->GetText().substr(offs,(*i)->CountPositions()-offs); // keeps the right half
|
||||
WXL_VAR(tobj->GetText().c_str());
|
||||
insert(i,obj);
|
||||
insert(i,new wxLayoutObjectText(left)); // inserts before
|
||||
}
|
||||
@ -1096,7 +991,10 @@ wxLayoutList::Insert(wxLayoutObjectBase *obj)
|
||||
m_CursorObject = tail();
|
||||
}
|
||||
}
|
||||
|
||||
if(obj->GetType() != WXLO_TYPE_LINEBREAK) // handled separately above
|
||||
m_CursorPos.x += obj->CountPositions();
|
||||
// applies also for linebreak:
|
||||
m_CursorOffset = obj->CountPositions();
|
||||
|
||||
if(obj->GetType() == WXLO_TYPE_LINEBREAK)
|
||||
@ -1126,11 +1024,15 @@ wxLayoutList::Insert(String const &text)
|
||||
return;
|
||||
}
|
||||
|
||||
if(i != iterator(NULL) && (**i).GetType() == WXLO_TYPE_LINEBREAK)
|
||||
{
|
||||
m_CursorPos.x = 0; m_CursorPos.y ++;
|
||||
}
|
||||
|
||||
switch((**i).GetType())
|
||||
{
|
||||
case WXLO_TYPE_TEXT:
|
||||
// insert into an existing text object:
|
||||
WXL_TRACE(inserting into existing object);
|
||||
tobj = (wxLayoutObjectText *)*i ;
|
||||
wxASSERT(tobj);
|
||||
tobj->GetText().insert(offs,text);
|
||||
@ -1163,7 +1065,6 @@ wxLayoutList::Insert(String const &text)
|
||||
else // offset == 1 : cursor after linebreak
|
||||
{
|
||||
j++;
|
||||
m_CursorPos.x ++;
|
||||
m_CursorObject = j;
|
||||
m_CursorOffset = 0;
|
||||
if(j != end() && (**j).GetType() == WXLO_TYPE_TEXT)
|
||||
@ -1205,8 +1106,8 @@ wxLayoutList::GetLineLength(wxLayoutObjectList::iterator i, CoordType offs)
|
||||
CoordType len = 0;
|
||||
|
||||
if(offs == 0 && (**i).GetType() == WXLO_TYPE_LINEBREAK)
|
||||
// we are before a linebrak
|
||||
return 0;
|
||||
i--;
|
||||
|
||||
// search backwards for beginning of line:
|
||||
while(i != begin() && (*i)->GetType() != WXLO_TYPE_LINEBREAK)
|
||||
i--;
|
||||
@ -1218,6 +1119,7 @@ wxLayoutList::GetLineLength(wxLayoutObjectList::iterator i, CoordType offs)
|
||||
len += (*i)->CountPositions();
|
||||
i++;
|
||||
}
|
||||
len++; // one extra for the linebreak
|
||||
return len;
|
||||
}
|
||||
|
||||
@ -1252,6 +1154,7 @@ wxLayoutList::Clear(int family, int size, int style, int weight,
|
||||
m_CursorPos = wxPoint(0,0);
|
||||
m_CursorObject = iterator(NULL);
|
||||
m_CursorOffset = 0;
|
||||
m_CursorSize = wxPoint(2,(BASELINESTRETCH*m_FontPtSize)/10);
|
||||
|
||||
m_MaxLine = 0;
|
||||
m_LineHeight = (BASELINESTRETCH*m_FontPtSize)/10;
|
||||
|
||||
@ -81,7 +81,8 @@ public:
|
||||
*/
|
||||
virtual void Layout(wxDC & dc,
|
||||
wxPoint position,
|
||||
CoordType baseLine) {}
|
||||
CoordType baseLine)
|
||||
{ m_Position = position; }
|
||||
|
||||
/** Draws an object.
|
||||
@param dc the wxDC to draw on
|
||||
|
||||
Loading…
Reference in New Issue
Block a user