-/*-*- c++ -*-********************************************************
- * wxllist: wxLayoutList, a layout engine for text and graphics *
- * *
- * (C) 1998-1999 by Karsten Ballüder (Ballueder@usa.net) *
- * *
- * $Id$
- *******************************************************************/
-
-/*
-
- Some docs:
-
- Layout() recalculates the objects, sizes, etc.
- Draw() just draws them with the current settings, without
- re-layout()ing them again
-
- Each line has its own wxLayoutStyleInfo structure which gets updated
- from within Layout(). Thanks to this, we don't need to re-layout all
- lines if we want to draw one, but can just use its styleinfo to set
- the right font.
-
- */
-
-#ifdef __GNUG__
-# pragma implementation "wxllist.h"
-#endif
-
-#include <wx/wxprec.h>
-
-#ifdef __BORLANDC__
-# pragma hdrstop
-#endif
-
-#include "Mpch.h"
-
-#ifdef M_BASEDIR
-# include "gui/wxllist.h"
-# include "gui/wxlparser.h"
-# define SHOW_SELECTIONS 1
-#else
-# include "wxllist.h"
-# include "wxlparser.h"
-# define SHOW_SELECTIONS 1
-#endif
-
-#ifndef USE_PCH
-# include <iostream.h>
-
-# include <wx/dc.h>
-# include <wx/dcps.h>
-# include <wx/print.h>
-# include <wx/log.h>
-# include <wx/filefn.h>
-#endif
-
-#ifdef WXLAYOUT_USE_CARET
-# include <wx/caret.h>
-#endif // WXLAYOUT_USE_CARET
-
-#include <ctype.h>
-
-/// This should never really get created
-#define WXLLIST_TEMPFILE "__wxllist.tmp"
-
-#ifdef WXLAYOUT_DEBUG
-
-# define TypeString(t) g_aTypeStrings[t]
-# define WXLO_DEBUG(x) wxLogDebug x
-
- static const char *g_aTypeStrings[] =
- {
- "invalid", "text", "cmd", "icon"
- };
- void
- wxLayoutObject::Debug(void)
- {
- WXLO_DEBUG(("%s",g_aTypeStrings[GetType()]));
- }
-#else
-# 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
-// MSW_CORRECTION to find all the places where I did it.
-#ifdef __WXMSW__
- static const int MSW_CORRECTION = 10;
-#else
- static const int MSW_CORRECTION = 0;
-#endif
-
-/// Cursors smaller than this disappear in XOR drawing mode
-#define WXLO_MINIMUM_CURSOR_WIDTH 4
-
-/// Use this character to estimate a cursor size when none is available.
-#define WXLO_CURSORCHAR "E"
-/** @name Helper functions */
-//@{
-/// allows me to compare to wxPoints
-bool operator <=(wxPoint const &p1, wxPoint const &p2)
-{
- return p1.y < p2.y || (p1.y == p2.y && p1.x <= p2.x);
-}
-
-/*
- The following STAY HERE until we have a working wxGTK again!!!
-*/
-#ifndef wxWANTS_CHARS
-/// allows me to compare to wxPoints
-bool operator ==(wxPoint const &p1, wxPoint const &p2)
-{
- return p1.x == p2.x && p1.y == p2.y;
-}
-
-/// allows me to compare to wxPoints
-bool operator !=(wxPoint const &p1, wxPoint const &p2)
-{
- return p1.x != p2.x || p1.y != p2.y;
-}
-
-wxPoint & operator += (wxPoint &p1, wxPoint const &p2)
-{
- p1.x += p2.x;
- p1.y += p2.y;
- return p1;
-}
-#endif // old wxGTK
-
-/// allows me to compare to wxPoints
-bool operator>(wxPoint const &p1, wxPoint const &p2)
-{
- return !(p1 <= p2);
-}
-
-/// grows a wxRect so that it includes the given point
-
-static
-void GrowRect(wxRect &r, CoordType x, CoordType y)
-{
- if(r.x > x)
- r.x = x;
- else if(r.x + r.width < x)
- r.width = x - r.x;
-
- if(r.y > y)
- r.y = y;
- else if(r.y + r.height < y)
- r.height = y - r.y;
-}
-
-#if 0
-// unused
-/// returns true if the point is in the rectangle
-static
-bool Contains(const wxRect &r, const wxPoint &p)
-{
- return r.x <= p.x && r.y <= p.y && (r.x+r.width) >= p.x && (r.y + r.height) >= p.y;
-}
-#endif
-
-
-//@}
-
-
-void ReadString(wxString &to, wxString &from)
-{
- to = "";
- const char *cptr = from.c_str();
- while(*cptr && *cptr != '\n')
- to += *cptr++;
- if(*cptr) cptr++;
- from = cptr;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- wxLayoutObject
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-/* static */
-wxLayoutObject *
-wxLayoutObject::Read(wxString &istr)
-{
- wxString tmp;
- ReadString(tmp, istr);
- int type = -1;
- sscanf(tmp.c_str(),"%d", &type);
-
- switch(type)
- {
- case WXLO_TYPE_TEXT:
- return wxLayoutObjectText::Read(istr);
- case WXLO_TYPE_CMD:
- return wxLayoutObjectCmd::Read(istr);
- case WXLO_TYPE_ICON:
- return wxLayoutObjectIcon::Read(istr);
- default:
- return NULL;
- }
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- wxLayoutObjectText
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-wxLayoutObjectText::wxLayoutObjectText(const wxString &txt)
-{
- m_Text = txt;
- m_Width = 0;
- m_Height = 0;
- m_Top = 0;
- m_Bottom = 0;
-}
-
-wxLayoutObject *
-wxLayoutObjectText::Copy(void)
-{
- wxLayoutObjectText *obj = new wxLayoutObjectText(m_Text);
- obj->m_Width = m_Width;
- obj->m_Height = m_Height;
- obj->m_Top = m_Top;
- obj->m_Bottom = m_Bottom;
- obj->SetUserData(m_UserData);
- return obj;
-}
-
-
-void
-wxLayoutObjectText::Write(wxString &ostr)
-{
- ostr << (int) WXLO_TYPE_TEXT << '\n'
- << m_Text << '\n';
-}
-/* static */
-wxLayoutObjectText *
-wxLayoutObjectText::Read(wxString &istr)
-{
- wxString text;
- ReadString(text, istr);
-
- return new wxLayoutObjectText(text);
-}
-
-wxPoint
-wxLayoutObjectText::GetSize(CoordType *top, CoordType *bottom) const
-{
-
- *top = m_Top; *bottom = m_Bottom;
- return wxPoint(m_Width, m_Height);
-}
-
-void
-wxLayoutObjectText::Draw(wxDC &dc, wxPoint const &coords,
- wxLayoutList *wxllist,
- CoordType begin, CoordType end)
-{
- if( end <= 0 )
- {
- // draw the whole object normally
- dc.DrawText(m_Text, coords.x, coords.y-m_Top);
- }
- else
- {
- // highlight the bit between begin and len
- CoordType
- xpos = coords.x,
- ypos = coords.y-m_Top;
- long width, height, descent;
-
- if(begin < 0) begin = 0;
- if( end > (signed)m_Text.Length() )
- end = m_Text.Length();
-
- wxString str = m_Text.Mid(0, begin);
- dc.DrawText(str, xpos, ypos);
- dc.GetTextExtent(str, &width, &height, &descent);
- xpos += width;
- wxllist->StartHighlighting(dc);
- str = m_Text.Mid(begin, end-begin);
- dc.DrawText(str, xpos, ypos);
- dc.GetTextExtent(str, &width, &height, &descent);
- xpos += width;
- wxllist->EndHighlighting(dc);
- str = m_Text.Mid(end, m_Text.Length()-end);
- dc.DrawText(str, xpos, ypos);
- }
-}
-
-CoordType
-wxLayoutObjectText::GetOffsetScreen(wxDC &dc, CoordType xpos) const
-{
- CoordType
- offs = 1,
- maxlen = m_Text.Length();
- long
- width = 0,
- height, descent = 0l;
-
- if(xpos == 0) return 0; // easy
-
- while(width < xpos && offs < maxlen)
- {
- dc.GetTextExtent(m_Text.substr(0,offs),
- &width, &height, &descent);
- offs++;
- }
- /* We have to substract 1 to compensate for the offs++, and another
- one because we don't want to position the cursor behind the
- object what we clicked on, but before - otherwise it looks
- funny. */
- return (xpos > 2) ? offs-2 : 0;
-}
-
-void
-wxLayoutObjectText::Layout(wxDC &dc, class wxLayoutList *llist)
-{
- long descent = 0l;
-
- // now this is done in wxLayoutLine::Layout(), but this code might be
- // reenabled later - in principle, it's more efficient
-#if 0
- CoordType widthOld = m_Width,
- heightOld = m_Height;
-#endif // 0
-
- dc.GetTextExtent(m_Text, &m_Width, &m_Height, &descent);
-
-#if 0
- if ( widthOld != m_Width || heightOld != m_Height )
- {
- // as the text length changed, it must be refreshed
- wxLayoutLine *line = GetLine();
-
- wxCHECK_RET( line, "wxLayoutObjectText can't refresh itself" );
-
- // as our size changed, we need to repaint the part which was appended
- wxPoint position(line->GetPosition());
-
- // this is not the most efficient way (we repaint the whole line), but
- // it's not too slow and is *simple*
- if ( widthOld < m_Width )
- widthOld = m_Width;
- if ( heightOld < m_Height )
- heightOld = m_Height;
-
- llist->SetUpdateRect(position.x + widthOld + MSW_CORRECTION,
- position.y + heightOld + MSW_CORRECTION);
- }
-#endif // 0
-
- m_Bottom = descent;
- m_Top = m_Height - m_Bottom;
-}
-
-
-#ifdef WXLAYOUT_DEBUG
-void
-wxLayoutObjectText::Debug(void)
-{
- wxLayoutObject::Debug();
- WXLO_DEBUG((" `%s`", m_Text.c_str()));
-}
-#endif
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- wxLayoutObjectIcon
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-wxLayoutObjectIcon::wxLayoutObjectIcon(wxBitmap const &icon)
-{
- m_Icon = new wxBitmap(icon);
-}
-
-
-void
-wxLayoutObjectIcon::Write(wxString &ostr)
-{
- /* Exports icon through a temporary file. */
-
- wxString file = wxGetTempFileName("wxloexport");
-
- ostr << WXLO_TYPE_ICON << '\n'
- << file << '\n';
- m_Icon->SaveFile(file, WXLO_BITMAP_FORMAT);
-}
-/* static */
-wxLayoutObjectIcon *
-wxLayoutObjectIcon::Read(wxString &istr)
-{
- wxString file;
- ReadString(file, istr);
-
- if(! wxFileExists(file))
- return NULL;
- wxLayoutObjectIcon *obj = new wxLayoutObjectIcon;
-
- if(!obj->m_Icon->LoadFile(file, WXLO_BITMAP_FORMAT))
- {
- delete obj;
- return NULL;
- }
- else
- return obj;
-}
-
-wxLayoutObject *
-wxLayoutObjectIcon::Copy(void)
-{
- wxLayoutObjectIcon *obj = new wxLayoutObjectIcon(new
- wxBitmap(*m_Icon));
- obj->SetUserData(m_UserData);
- return obj;
-}
-
-wxLayoutObjectIcon::wxLayoutObjectIcon(wxBitmap *icon)
-{
- m_Icon = icon;
-}
-
-void
-wxLayoutObjectIcon::Draw(wxDC &dc, wxPoint const &coords,
- wxLayoutList *wxllist,
- CoordType begin, CoordType /* len */)
-{
- dc.DrawBitmap(*m_Icon, coords.x, coords.y-m_Icon->GetHeight(),
- (m_Icon->GetMask() == NULL) ? FALSE : TRUE);
-}
-
-void
-wxLayoutObjectIcon::Layout(wxDC & /* dc */, class wxLayoutList * )
-{
-}
-
-wxPoint
-wxLayoutObjectIcon::GetSize(CoordType *top, CoordType *bottom) const
-{
- *top = m_Icon->GetHeight();
- *bottom = 0;
- return wxPoint(m_Icon->GetWidth(), m_Icon->GetHeight());
-}
-
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- wxLayoutObjectCmd
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-
-wxLayoutStyleInfo::wxLayoutStyleInfo(int ifamily,
- int isize,
- int istyle,
- int iweight,
- int iul,
- wxColour *fg,
- wxColour *bg)
-{
- family = ifamily; size = isize;
- style = istyle; weight = iweight;
- underline = iul != 0;
- if(fg)
- {
- m_fg = *fg;
- m_fg_valid = TRUE;
- }
- else
- m_fg = *wxBLACK;
- if(bg)
- {
- m_bg = *bg;
- m_bg_valid = TRUE;
- }
- else
- m_bg = *wxWHITE;
-}
-
-#define COPY_SI_(what) if(right.what != -1) what = right.what;
-
-wxLayoutStyleInfo &
-wxLayoutStyleInfo::operator=(const wxLayoutStyleInfo &right)
-{
- COPY_SI_(family);
- COPY_SI_(style);
- COPY_SI_(size);
- COPY_SI_(weight);
- COPY_SI_(underline);
- if(right.m_fg_valid) m_fg = right.m_fg;
- if(right.m_bg_valid) m_bg = right.m_bg;
- return *this;
-}
-
-wxLayoutObjectCmd::wxLayoutObjectCmd(int family, int size, int style, int
- weight, int underline,
- wxColour *fg, wxColour *bg)
-
-{
- m_StyleInfo = new wxLayoutStyleInfo(family, size,style,weight,underline,fg,bg);
-}
-
-wxLayoutObject *
-wxLayoutObjectCmd::Copy(void)
-{
- wxLayoutObjectCmd *obj = new wxLayoutObjectCmd(
- m_StyleInfo->size,
- m_StyleInfo->family,
- m_StyleInfo->style,
- m_StyleInfo->weight,
- m_StyleInfo->underline,
- m_StyleInfo->m_fg_valid ?
- &m_StyleInfo->m_fg : NULL,
- m_StyleInfo->m_bg_valid ?
- &m_StyleInfo->m_bg : NULL);
- obj->SetUserData(m_UserData);
- return obj;
-}
-
-void
-wxLayoutObjectCmd::Write(wxString &ostr)
-{
- ostr << WXLO_TYPE_CMD << '\n'
- << m_StyleInfo->size << '\n'
- << m_StyleInfo->family << '\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';
- 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';
- }
- 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';
- }
-}
-/* static */
-wxLayoutObjectCmd *
-wxLayoutObjectCmd::Read(wxString &istr)
-{
- wxLayoutObjectCmd *obj = new wxLayoutObjectCmd;
-
- wxString tmp;
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->size);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->family);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->style);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->weight);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->underline);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->m_fg_valid);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &obj->m_StyleInfo->m_bg_valid);
- if(obj->m_StyleInfo->m_fg_valid)
- {
- int red, green, blue;
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &red);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &green);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &blue);
- obj->m_StyleInfo->m_fg = wxColour(red, green, blue);
- }
- if(obj->m_StyleInfo->m_bg_valid)
- {
- int red, green, blue;
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &red);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &green);
- ReadString(tmp, istr);
- sscanf(tmp.c_str(),"%d", &blue);
- obj->m_StyleInfo->m_bg = wxColour(red, green, blue);
- }
- return obj;
-}
-
-
-wxLayoutObjectCmd::~wxLayoutObjectCmd()
-{
- delete m_StyleInfo;
-}
-
-wxLayoutStyleInfo *
-wxLayoutObjectCmd::GetStyle(void) const
-{
- return m_StyleInfo;
-}
-
-void
-wxLayoutObjectCmd::Draw(wxDC &dc, wxPoint const & /* coords */,
- wxLayoutList *wxllist,
- CoordType begin, CoordType /* len */)
-{
- wxASSERT(m_StyleInfo);
- wxllist->ApplyStyle(*m_StyleInfo, dc);
-}
-
-void
-wxLayoutObjectCmd::Layout(wxDC &dc, class wxLayoutList * llist)
-{
- // this get called, so that recalculation uses right font sizes
- Draw(dc, wxPoint(0,0), llist);
-}
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- The wxLayoutLine object
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-wxLayoutLine::wxLayoutLine(wxLayoutLine *prev, wxLayoutList *llist)
-{
- m_LineNumber = 0;
- m_Width = m_Height = 0;
- m_Length = 0;
- MarkDirty(0);
- m_Previous = prev;
- m_Next = NULL;
- RecalculatePosition(llist);
- if(m_Previous)
- {
- m_LineNumber = m_Previous->GetLineNumber()+1;
- m_Next = m_Previous->GetNextLine();
- m_Previous->m_Next = this;
- }
- if(m_Next)
- {
- m_Next->m_Previous = this;
- m_Next->MoveLines(+1);
- m_Next->RecalculatePositions(1,llist);
- }
-}
-
-wxLayoutLine::~wxLayoutLine()
-{
- // kbList cleans itself
-}
-
-wxPoint
-wxLayoutLine::RecalculatePosition(wxLayoutList *llist)
-{
- wxASSERT(m_Previous || GetLineNumber() == 0);
-
- wxPoint posOld(m_Position);
-
- if(m_Previous)
- {
- m_Position = m_Previous->GetPosition();
- m_Position.y += m_Previous->GetHeight();
- }
- else
- m_Position = wxPoint(0,0);
-
- if ( m_Position != posOld )
- {
- // the whole line moved and must be repainted
- llist->SetUpdateRect(m_Position);
- llist->SetUpdateRect(m_Position.x + GetWidth() + MSW_CORRECTION,
- m_Position.y + GetHeight() + MSW_CORRECTION);
- llist->SetUpdateRect(posOld);
- llist->SetUpdateRect(posOld.x + GetWidth() + MSW_CORRECTION,
- posOld.y + GetHeight() + MSW_CORRECTION);
- }
-
- return m_Position;
-}
-
-void
-wxLayoutLine::RecalculatePositions(int recurse, wxLayoutList *llist)
-{
- //FIXME: is this really needed? We run Layout() anyway.
- // Recursing here, drives computation time up exponentially, as
- // each line will cause all following lines to be recalculated.
- // Yes, or linenumbers go wrong.
-
- wxASSERT(recurse >= 0);
- wxPoint pos = m_Position;
- CoordType height = m_Height;
-
-// WXLO_TRACE("RecalculatePositions()");
- RecalculatePosition(llist);
- if(m_Next)
- {
- if(recurse > 0)
- m_Next->RecalculatePositions(--recurse, llist);
- else if(pos != m_Position || m_Height != height)
- m_Next->RecalculatePositions(0, llist);
- }
-}
-
-wxLayoutObjectList::iterator
-wxLayoutLine::FindObject(CoordType xpos, CoordType *offset) const
-{
- wxASSERT(xpos >= 0);
- wxASSERT(offset);
- wxLayoutObjectList::iterator
- i,
- found = NULLIT;
- CoordType x = 0, len;
-
- /* We search through the objects. As we don't like returning the
- object that the cursor is behind, we just remember such an
- object in "found" so we can return it if there is really no
- further object following it. */
- for(i = m_ObjectList.begin(); i != NULLIT; i++)
- {
- len = (**i).GetLength();
- if( x <= xpos && xpos <= x + len )
- {
- *offset = xpos-x;
- if(xpos == x + len) // is there another object behind?
- found = i;
- else // we are really inside this object
- return i;
- }
- x += (**i).GetLength();
- }
- return found; // ==NULL if really none found
-}
-
-wxLayoutObjectList::iterator
-wxLayoutLine::FindObjectScreen(wxDC &dc,
- CoordType xpos, CoordType *cxpos,
- bool *found) const
-{
- wxASSERT(cxpos);
- wxASSERT(cxpos);
- wxLayoutObjectList::iterator i;
- CoordType x = 0, cx = 0, width;
-
- for(i = m_ObjectList.begin(); i != NULLIT; i++)
- {
- width = (**i).GetWidth();
- if( x <= xpos && xpos <= x + width )
- {
- *cxpos = cx + (**i).GetOffsetScreen(dc, xpos-x);
- if(found) *found = true;
- return i;
- }
- x += (**i).GetWidth();
- cx += (**i).GetLength();
- }
- // behind last object:
- *cxpos = cx;
- if(found) *found = false;
- return m_ObjectList.tail();
-}
-
-/** Finds text in this line.
- @param needle the text to find
- @param xpos the position where to start the search
- @return the cursoor coord where it was found or -1
-*/
-CoordType
-wxLayoutLine::FindText(const wxString &needle, CoordType xpos) const
-{
- int
- cpos = 0,
- relpos = -1;
- wxString const *text;
-
- for(wxLOiterator i = m_ObjectList.begin(); i != m_ObjectList.end(); i++)
- {
- if(cpos >= xpos) // search from here!
- {
- if((**i).GetType() == WXLO_TYPE_TEXT)
- {
- text = & ((wxLayoutObjectText*)(*i))->GetText();
- relpos = text->Find(needle);
- if(relpos >= cpos-xpos) // -1 if not found
- {
- return cpos+relpos;
- }
- }
- cpos += (**i).GetLength();
- }
- }
- return -1; // not found
-}
-
-bool
-wxLayoutLine::Insert(CoordType xpos, wxLayoutObject *obj)
-{
- wxASSERT(xpos >= 0);
- wxASSERT(obj != NULL);
-
- MarkDirty(xpos);
-
- // If we insert a command object, we need to recalculate all lines
- // to update their styleinfo structure.
- if(obj->GetType() == WXLO_TYPE_CMD)
- MarkNextDirty(-1);
-
- CoordType offset;
- wxLOiterator i = FindObject(xpos, &offset);
- if(i == NULLIT)
- {
- if(xpos == 0 ) // aha, empty line!
- {
- m_ObjectList.push_back(obj);
- m_Length += obj->GetLength();
- return true;
- }
- else
- return false;
- }
-
- CoordType len = (**i).GetLength();
- if(offset == 0 /*&& i != m_ObjectList.begin()*/) // why?
- { // insert before this object
- m_ObjectList.insert(i,obj);
- m_Length += obj->GetLength();
- return true;
- }
- if(offset == len )
- {
- if( i == m_ObjectList.tail()) // last object?
- m_ObjectList.push_back(obj);
- else
- { // insert after current object
- i++;
- m_ObjectList.insert(i,obj);
- }
- m_Length += obj->GetLength();
- return true;
- }
- /* Otherwise we need to split the current object.
- Fortunately this can only be a text object. */
- wxASSERT((**i).GetType() == WXLO_TYPE_TEXT);
- wxString left, right;
- wxLayoutObjectText *tobj = (wxLayoutObjectText *) *i;
- left = tobj->GetText().substr(0,offset);
- right = tobj->GetText().substr(offset,len-offset);
- // current text object gets set to right half
- tobj->GetText() = right; // set new text
- // before it we insert the new object
- m_ObjectList.insert(i,obj);
- m_Length += obj->GetLength();
- // and before that we insert the left half
- m_ObjectList.insert(i,new wxLayoutObjectText(left));
- return true;
-}
-
-bool
-wxLayoutLine::Insert(CoordType xpos, const wxString& text)
-{
- wxASSERT(xpos >= 0);
-
- MarkDirty(xpos);
-
- CoordType offset;
- wxLOiterator i = FindObject(xpos, &offset);
- if(i != NULLIT && (**i).GetType() == WXLO_TYPE_TEXT)
- {
- wxLayoutObjectText *tobj = (wxLayoutObjectText *) *i;
- tobj->GetText().insert(offset, text);
- m_Length += text.Length();
- }
- else
- {
- if ( !Insert(xpos, new wxLayoutObjectText(text)) )
- return false;
- }
-
- return true;
-}
-
-CoordType
-wxLayoutLine::Delete(CoordType xpos, CoordType npos)
-{
- CoordType offset, len;
-
- wxASSERT(xpos >= 0);
- wxASSERT(npos >= 0);
- MarkDirty(xpos);
- wxLOiterator i = FindObject(xpos, &offset);
- while(npos > 0)
- {
- if(i == NULLIT) return npos;
- // now delete from that object:
- if((**i).GetType() != WXLO_TYPE_TEXT)
- {
- if(offset != 0) // at end of line after a non-text object
- return npos;
- // always len == 1:
- len = (**i).GetLength();
- m_Length -= len;
- npos -= len;
- // If we delete a command object, we need to recalculate all lines
- // to update their styleinfo structure.
- if((**i).GetType() == WXLO_TYPE_CMD)
- MarkNextDirty(-1);
- m_ObjectList.erase(i);
- }
- else
- {
- // tidy up: remove empty text objects
- if((**i).GetLength() == 0)
- {
- m_ObjectList.erase(i);
- continue;
- }
- // Text object:
- CoordType max = (**i).GetLength() - offset;
- if(npos < max) max = npos;
- if(max == 0)
- {
- if(xpos == GetLength())
- return npos;
- else
- { // at the end of an object
- // move to begin of next object:
- i++; offset = 0;
- continue; // start over
- }
- }
- npos -= max;
- m_Length -= max;
- if(offset == 0 && max == (**i).GetLength())
- m_ObjectList.erase(i); // remove the whole object
- else
- ((wxLayoutObjectText *)(*i))->GetText().Remove(offset,max);
- }
- }
-
- return npos;
-}
-
-void
-wxLayoutLine::MarkNextDirty(int recurse)
-{
- wxLayoutLine *line = GetNextLine();
- while(line && (recurse == -1 || recurse >= 0))
- {
- line->MarkDirty();
- line = line->GetNextLine();
- if(recurse > 0) recurse --;
- }
-}
-
-bool
-wxLayoutLine::DeleteWord(CoordType xpos)
-{
- wxASSERT(xpos >= 0);
- CoordType offset;
- MarkDirty(xpos);
-
- wxLOiterator i = FindObject(xpos, &offset);
-
- for(;;)
- {
- if(i == NULLIT) return false;
- if((**i).GetType() != WXLO_TYPE_TEXT)
- {
- // This should only happen when at end of line, behind a non-text
- // object:
- if(offset == (**i).GetLength()) return false;
- m_Length -= (**i).GetLength(); // -1
- m_ObjectList.erase(i);
- return true; // we are done
- }
- else
- { // text object:
- if(offset == (**i).GetLength()) // at end of object
- {
- i++; offset = 0;
- continue;
- }
- wxLayoutObjectText *tobj = (wxLayoutObjectText *)*i;
- size_t count = 0;
- wxString str = tobj->GetText();
- str = str.substr(offset,str.Length()-offset);
- // Find out how many positions we need to delete:
- // 1. eat leading space
- while(isspace(str.c_str()[count])) count++;
- // 2. eat the word itself:
- while(isalnum(str.c_str()[count])) count++;
- // now delete it:
- wxASSERT(count+offset <= (size_t) (**i).GetLength());
- ((wxLayoutObjectText *)*i)->GetText().erase(offset,count);
- m_Length -= count;
- return true;
- }
- }
-
- wxFAIL_MSG("unreachable");
-}
-
-wxLayoutLine *
-wxLayoutLine::DeleteLine(bool update, wxLayoutList *llist)
-{
- if(m_Next) m_Next->m_Previous = m_Previous;
- if(m_Previous) m_Previous->m_Next = m_Next;
- if(update)
- {
- m_Next->MoveLines(-1);
- m_Next->RecalculatePositions(1, llist);
- /* We assume that if we have more than one object in the list,
- this means that we have a command object, so we need to
- update the following lines. */
- if(m_ObjectList.size() > 1 ||
- ( m_ObjectList.begin() != NULLIT &&
- (**m_ObjectList.begin()).GetType() == WXLO_TYPE_CMD)
- )
- MarkNextDirty(-1);
- }
- wxLayoutLine *next = m_Next;
- delete this;
- return next;
-}
-
-void
-wxLayoutLine::Draw(wxDC &dc,
- wxLayoutList *llist,
- const wxPoint & offset) const
-{
- wxLayoutObjectList::iterator i;
- wxPoint pos = offset;
- pos = pos + GetPosition();
-
- pos.y += m_BaseLine;
-
- CoordType xpos = 0; // cursorpos, lenght of line
-
- CoordType from, to, tempto;
-
- int highlight = llist->IsSelected(this, &from, &to);
-// WXLO_DEBUG(("highlight=%d", highlight ));
- if(highlight == 1) // we need to draw the whole line inverted!
- llist->StartHighlighting(dc);
- else
- llist->EndHighlighting(dc);
-
- for(i = m_ObjectList.begin(); i != NULLIT; i++)
- {
- if(highlight == -1) // partially highlight line
- {
- // parts of the line need highlighting
- tempto = xpos+(**i).GetLength();
- (**i).Draw(dc, pos, llist, from-xpos, to-xpos);
- }
- else
- (**i).Draw(dc, pos, llist);
- pos.x += (**i).GetWidth();
- xpos += (**i).GetLength();
- }
-}
-
-/*
- This function does all the recalculation, that is, it should only be
- called from within wxLayoutList::Layout(), as it uses the current
- list's styleinfo and updates it.
-*/
-void
-wxLayoutLine::Layout(wxDC &dc,
- wxLayoutList *llist,
- wxPoint *cursorPos,
- wxPoint *cursorSize,
- int cx,
- bool suppressSIupdate)
-{
- wxLayoutObjectList::iterator i;
-
- // when a line becomes dirty, we redraw it from the place where it was
- // changed till the end of line (because the following wxLayoutObjects are
- // moved when the preceding one changes) - calculate the update rectangle.
- CoordType updateTop = m_Position.y,
- updateLeft = -1,
- updateWidth = m_Width,
- updateHeight = m_Height;
-
- CoordType
- topHeight = 0,
- bottomHeight = 0; // above and below baseline
- CoordType
- objTopHeight, objBottomHeight; // above and below baseline
- CoordType
- len, count = 0;
-
- CoordType heightOld = m_Height;
-
- m_Height = 0;
- m_Width = 0;
- m_BaseLine = 0;
-
- bool cursorFound = false;
-
- if(cursorPos)
- {
- *cursorPos = m_Position;
- if(cursorSize) *cursorSize = wxPoint(0,0);
- }
-
- m_StyleInfo = llist->GetStyleInfo(); // save current style
- for(i = m_ObjectList.begin(); i != NULLIT; i++)
- {
- wxLayoutObject *obj = *i;
- obj->Layout(dc, llist);
- wxPoint sizeObj = obj->GetSize(&objTopHeight, &objBottomHeight);
-
- if(cursorPos && ! cursorFound)
- {
- // we need to check whether the text cursor is here
- len = obj->GetLength();
- if(count <= cx && count+len > cx)
- {
- if(obj->GetType() == WXLO_TYPE_TEXT)
- {
- len = cx - count; // pos in object
- CoordType width, height, descent;
- dc.GetTextExtent((*(wxLayoutObjectText*)*i).GetText().substr(0,len),
- &width, &height, &descent);
- cursorPos->x += width;
- cursorPos->y = m_Position.y;
- wxString str;
- if(len < obj->GetLength())
- str = (*(wxLayoutObjectText*)*i).GetText().substr(len,1);
- else
- str = WXLO_CURSORCHAR;
- dc.GetTextExtent(str, &width, &height, &descent);
- wxASSERT(cursorSize);
- // Just in case some joker inserted an empty string object:
- if(width == 0) width = WXLO_MINIMUM_CURSOR_WIDTH;
- if(height == 0) height = sizeObj.y;
- cursorSize->x = width;
- cursorSize->y = height;
- cursorFound = true; // no more checks
- }
- else
- {
- // on some other object
- CoordType top, bottom; // unused
- *cursorSize = obj->GetSize(&top,&bottom);
- cursorPos->y = m_Position.y;
- cursorFound = true; // no more checks
- }
- }
- else
- {
- count += len;
- cursorPos->x += obj->GetWidth();
- }
- } // cursor finding
-
- m_Width += sizeObj.x;
- if(sizeObj.y > m_Height)
- {
- m_Height = sizeObj.y;
- }
-
- if(objTopHeight > topHeight)
- topHeight = objTopHeight;
- if(objBottomHeight > bottomHeight)
- bottomHeight = objBottomHeight;
- }
-
- if ( IsDirty() )
- {
- if ( updateHeight < m_Height )
- updateHeight = m_Height;
- if ( updateWidth < m_Width )
- updateWidth = m_Width;
-
- // update all line if we don't know where to start from
- if ( updateLeft == -1 )
- updateLeft = 0;
-
- llist->SetUpdateRect(updateLeft, updateTop);
- llist->SetUpdateRect(updateLeft + updateWidth + MSW_CORRECTION,
- updateTop + updateHeight + MSW_CORRECTION);
- }
-
- if(topHeight + bottomHeight > m_Height)
- {
- m_Height = topHeight+bottomHeight;
- }
-
- m_BaseLine = topHeight;
-
- if(m_Height == 0)
- {
- CoordType width, height, descent;
- dc.GetTextExtent(WXLO_CURSORCHAR, &width, &height, &descent);
- m_Height = height;
- m_BaseLine = m_Height - descent;
- }
-
- // tell next line about coordinate change
- if(m_Next && m_Height != heightOld)
- {
- // FIXME isn't this done in RecalculatePositions() below anyhow?
- m_Next->RecalculatePositions(0, llist);
- }
-
- // We need to check whether we found a valid cursor size:
- if(cursorPos)
- {
- // this might be the case if the cursor is at the end of the
- // line or on a command object:
- if(cursorSize->y < WXLO_MINIMUM_CURSOR_WIDTH)
- {
- CoordType width, height, descent;
- dc.GetTextExtent(WXLO_CURSORCHAR, &width, &height, &descent);
- cursorSize->x = width;
- cursorSize->y = height;
- }
- if(m_BaseLine >= cursorSize->y) // the normal case anyway
- cursorPos->y += m_BaseLine-cursorSize->y;
- }
- RecalculatePositions(1, llist);
- MarkClean();
-}
-
-
-wxLayoutLine *
-wxLayoutLine::Break(CoordType xpos, wxLayoutList *llist)
-{
- wxASSERT(xpos >= 0);
-
- MarkDirty(xpos);
-
- /* If we are at the begin of a line, we want to move all other
- lines down and stay with the cursor where we are. However, if we
- are in an empty line, we want to move down with it. */
- if(xpos == 0 && GetLength() > 0)
- { // insert an empty line before this one
- wxLayoutLine *prev = new wxLayoutLine(m_Previous, llist);
- if(m_Previous == NULL)
- { // We were in first line, need to link in new empty line
- // before this.
- prev->m_Next = this;
- m_Previous = prev;
- m_Previous->m_Height = 0; // this is a wild guess
- }
- if(m_Next)
- m_Next->RecalculatePositions(1, llist);
- return m_Previous;
- }
-
- CoordType offset;
- wxLOiterator i = FindObject(xpos, &offset);
- if(i == NULLIT)
- // must be at the end of the line then
- return new wxLayoutLine(this, llist);
- // split this line:
-
- wxLayoutLine *newLine = new wxLayoutLine(this, llist);
- // split object at i:
- if((**i).GetType() == WXLO_TYPE_TEXT && offset != 0)
- {
- wxString left, right;
- wxLayoutObjectText *tobj = (wxLayoutObjectText *) *i;
- left = tobj->GetText().substr(0,offset);
- right = tobj->GetText().substr(offset,tobj->GetLength()-offset);
- // current text object gets set to left half
- tobj->GetText() = left; // set new text
- newLine->Append(new wxLayoutObjectText(right));
- m_Length -= right.Length();
- i++; // don't move this object to the new list
- }
- else
- {
- if(offset > 0)
- i++; // move objects from here to new list
- }
-
- while(i != m_ObjectList.end())
- {
- wxLayoutObject *obj = *i;
- newLine->Append(obj);
- m_Length -= obj->GetLength();
-
- m_ObjectList.remove(i); // remove without deleting it
- }
- if(m_Next)
- m_Next->RecalculatePositions(2, llist);
- return newLine;
-}
-
-
-void
-wxLayoutLine::MergeNextLine(wxLayoutList *llist)
-{
- wxCHECK_RET(GetNextLine(),"wxLayout internal error: no next line to merge");
- wxLayoutObjectList &list = GetNextLine()->m_ObjectList;
- wxLOiterator i;
-
- MarkDirty(GetWidth());
-
- wxLayoutObject *last = NULL;
- for(i = list.begin(); i != list.end();)
- {
- wxLayoutObject *current = *i;
-
- // merge text objects together for efficiency
- if ( last && last->GetType() == WXLO_TYPE_TEXT &&
- current->GetType() == WXLO_TYPE_TEXT )
- {
- wxLayoutObjectText *textObj = (wxLayoutObjectText *)last;
- wxString text(textObj->GetText());
- text += ((wxLayoutObjectText *)current)->GetText();
- textObj->SetText(text);
-
- list.erase(i); // remove and delete it
- }
- else
- {
- // just append the object "as was"
- Append(current);
-
- list.remove(i); // remove without deleting it
- }
- }
- wxASSERT(list.empty());
-
- wxLayoutLine *oldnext = GetNextLine();
- wxLayoutLine *nextLine = oldnext->GetNextLine();
- SetNext(nextLine);
- if ( nextLine )
- {
- nextLine->MoveLines(-1);
- }
- else
- {
- // this is now done in Delete(), but if this function is ever called
- // from elsewhere, we might have to move refresh code back here (in
- // order not to duplicate it)
-#if 0
- wxPoint pos(oldnext->GetPosition());
- llist->SetUpdateRect(pos);
- llist->SetUpdateRect(pos.x + oldnext->GetWidth() + MSW_CORRECTION,
- pos.y + oldnext->GetHeight() + MSW_CORRECTION);
-#endif // 0
- }
-
- delete oldnext;
-}
-
-CoordType
-wxLayoutLine::GetWrapPosition(CoordType column)
-{
- CoordType offset;
- wxLOiterator i = FindObject(column, &offset);
- if(i == NULLIT) return -1; // cannot wrap
-
- // go backwards through the list and look for space in text objects
- do
- {
- if((**i).GetType() == WXLO_TYPE_TEXT)
- {
- do
- {
- if( isspace(((wxLayoutObjectText*)*i)->GetText().c_str()[(size_t)offset]))
- return column;
- else
- {
- offset--;
- column--;
- }
- }while(offset != -1);
- i--; // move on to previous object
- }
- else
- {
- column -= (**i).GetLength();
- i--;
- }
- if( i != NULLIT)
- offset = (**i).GetLength();
- }while(i != NULLIT);
- /* If we reached the begin of the list and have more than one
- object, that one is longer than the margin, so break behind
- it. */
- CoordType pos = 0;
- i = m_ObjectList.begin();
- while(i != NULLIT && (**i).GetType() != WXLO_TYPE_TEXT)
- {
- pos += (**i).GetLength();
- i++;
- }
- if(i == NULLIT) return -1; //why should this happen?
- 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
-}
-
-
-#ifdef WXLAYOUT_DEBUG
-void
-wxLayoutLine::Debug(void)
-{
- wxString tmp;
- wxPoint pos = GetPosition();
- WXLO_DEBUG(("Line %ld, Pos (%ld,%ld), Height %ld, BL %ld, Font: %d",
- (long int) GetLineNumber(),
- (long int) pos.x, (long int) pos.y,
- (long int) GetHeight(),
- (long int) m_BaseLine,
- (int) m_StyleInfo.family));
- if(m_ObjectList.begin() != NULLIT)
- (**m_ObjectList.begin()).Debug();
-
-}
-#endif
-
-void
-wxLayoutLine::Copy(wxLayoutList *llist,
- CoordType from,
- CoordType to)
-{
- CoordType firstOffset, lastOffset;
-
- if(to == -1) to = GetLength();
- if(from == to) return;
-
- wxLOiterator first = FindObject(from, &firstOffset);
- wxLOiterator last = FindObject(to, &lastOffset);
-
- // Common special case: only one object
- if( first != NULLIT && last != NULLIT && *first == *last )
- {
- if( (**first).GetType() == WXLO_TYPE_TEXT )
- {
- llist->Insert(new wxLayoutObjectText(
- ((wxLayoutObjectText
- *)*first)->GetText().substr(firstOffset,
- lastOffset-firstOffset))
- );
- return;
- }
- else // what can we do?
- {
- if(lastOffset > firstOffset) // i.e. +1 :-)
- llist->Insert( (**first).Copy() );
- return;
- }
- }
-
- // If we reach here, we can safely copy the whole first object from
- // the firstOffset position on:
- if((**first).GetType() == WXLO_TYPE_TEXT && firstOffset != 0)
- {
- llist->Insert(new wxLayoutObjectText(
- ((wxLayoutObjectText *)*first)->GetText().substr(firstOffset))
- );
- }
- else if(firstOffset == 0)
- llist->Insert( (**first).Copy() );
- // else nothing to copy :-(
-
- // Now we copy all objects before the last one:
- wxLOiterator i = first; i++;
- for( ; i != last; i++)
- llist->Insert( (**i).Copy() );
-
- // And now the last object:
- if(lastOffset != 0)
- {
- if( (**last).GetType() == WXLO_TYPE_TEXT )
- {
- llist->Insert(new wxLayoutObjectText(
- ((wxLayoutObjectText *)*last)->GetText().substr(0,lastOffset))
- );
- }
- else
- llist->Insert( (**last).Copy() );
- }
-}
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- The wxLayoutList object
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-wxLayoutList::wxLayoutList()
-{
-#ifdef WXLAYOUT_USE_CARET
- m_caret = NULL;
-#endif // WXLAYOUT_USE_CARET
-
- m_FirstLine = NULL;
- InvalidateUpdateRect();
- Clear();
-}
-
-wxLayoutList::~wxLayoutList()
-{
- InternalClear();
- m_FirstLine->DeleteLine(false, this);
-}
-
-void
-wxLayoutList::Empty(void)
-{
- while(m_FirstLine)
- m_FirstLine = m_FirstLine->DeleteLine(false, this);
-
- m_CursorPos = wxPoint(0,0);
- m_CursorScreenPos = wxPoint(0,0);
- m_CursorSize = wxPoint(0,0);
- m_movedCursor = true;
- m_FirstLine = new wxLayoutLine(NULL, this); // empty first line
- m_CursorLine = m_FirstLine;
- InvalidateUpdateRect();
-}
-
-
-void
-wxLayoutList::InternalClear(void)
-{
- Empty();
- m_Selection.m_selecting = false;
- m_Selection.m_valid = false;
-
- m_DefaultStyleInfo.family = wxSWISS;
- m_DefaultStyleInfo.size = WXLO_DEFAULTFONTSIZE;
- m_DefaultStyleInfo.style = wxNORMAL;
- m_DefaultStyleInfo.weight = wxNORMAL;
- m_DefaultStyleInfo.underline = 0;
- m_DefaultStyleInfo.m_fg_valid = TRUE;
- m_DefaultStyleInfo.m_fg = *wxBLACK;
- m_DefaultStyleInfo.m_bg_valid = TRUE;
- m_DefaultStyleInfo.m_bg = *wxWHITE;
-
- m_CurrentStyleInfo = m_DefaultStyleInfo;
-}
-
-void
-wxLayoutList::SetFont(int family, int size, int style, int weight,
- int underline, wxColour *fg,
- wxColour *bg)
-{
- if(family != -1) m_CurrentStyleInfo.family = family;
- if(size != -1) m_CurrentStyleInfo.size = size;
- if(style != -1) m_CurrentStyleInfo.style = style;
- if(weight != -1) m_CurrentStyleInfo.weight = weight;
- if(underline != -1) m_CurrentStyleInfo.underline = underline != 0;
- if(fg) m_CurrentStyleInfo.m_fg = *fg;
- if(bg) m_CurrentStyleInfo.m_bg = *bg;
- Insert(
- new wxLayoutObjectCmd(
- m_CurrentStyleInfo.family,
- m_CurrentStyleInfo.size,
- m_CurrentStyleInfo.style,
- m_CurrentStyleInfo.weight,
- m_CurrentStyleInfo.underline,
- fg, bg));
-}
-
-void
-wxLayoutList::SetFont(int family, int size, int style, int weight,
- int underline, char const *fg, char const *bg)
-
-{
- wxColour
- *cfg = NULL,
- *cbg = NULL;
-
- if( fg )
- cfg = wxTheColourDatabase->FindColour(fg);
- if( bg )
- cbg = wxTheColourDatabase->FindColour(bg);
-
- SetFont(family,size,style,weight,underline,cfg,cbg);
-}
-
-void
-wxLayoutList::Clear(int family, int size, int style, int weight,
- int underline, wxColour *fg, wxColour *bg)
-{
- InternalClear();
- m_DefaultStyleInfo = wxLayoutStyleInfo(family, size, style, weight,
- underline, fg, bg);
- m_CurrentStyleInfo = m_DefaultStyleInfo;
-}
-
-wxPoint
-wxLayoutList::FindText(const wxString &needle, const wxPoint &cpos) const
-{
- int xpos;
-
- wxLayoutLine *line;
- for(line = m_FirstLine;
- line;
- line = line->GetNextLine())
- {
- if(line->GetLineNumber() >= cpos.y)
- {
- xpos = line->FindText(needle,
- (line->GetLineNumber() == cpos.y) ?
- cpos.x : 0);
- if(xpos != -1)
- return wxPoint(xpos, line->GetLineNumber());
- }
- }
- return wxPoint(-1,-1);
-}
-
-
-bool
-wxLayoutList::MoveCursorTo(wxPoint const &p)
-{
- AddCursorPosToUpdateRect();
-
- wxPoint cursorPosOld = m_CursorPos;
-
- wxLayoutLine *line = m_FirstLine;
- while(line && line->GetLineNumber() != p.y)
- line = line->GetNextLine();
- if(line && line->GetLineNumber() == p.y) // found it
- {
- m_CursorPos.y = p.y;
- m_CursorLine = line;
- CoordType len = line->GetLength();
- if(len >= p.x)
- {
- m_CursorPos.x = p.x;
- }
- else
- {
- m_CursorPos.x = len;
- }
- }
-
- m_movedCursor = m_CursorPos != cursorPosOld;
-
- return m_CursorPos == p;
-}
-
-bool
-wxLayoutList::MoveCursorVertically(int n)
-{
- AddCursorPosToUpdateRect();
-
- wxPoint cursorPosOld = m_CursorPos;
-
- bool rc;
- if(n < 0) // move up
- {
- if(m_CursorLine == m_FirstLine) return false;
- while(n < 0 && m_CursorLine)
- {
- m_CursorLine = m_CursorLine->GetPreviousLine();
- m_CursorPos.y--;
- n++;
- }
- if(! m_CursorLine)
- {
- m_CursorLine = m_FirstLine;
- m_CursorPos.y = 0;
- rc = false;
- }
- else
- {
- if(m_CursorPos.x > m_CursorLine->GetLength())
- m_CursorPos.x = m_CursorLine->GetLength();
- rc = true;
- }
- }
- else // move down
- {
- wxLayoutLine *last = m_CursorLine;
- if(! m_CursorLine->GetNextLine()) return false;
- while(n > 0 && m_CursorLine)
- {
- n--;
- m_CursorPos.y ++;
- m_CursorLine = m_CursorLine->GetNextLine();
- }
- if(! m_CursorLine)
- {
- m_CursorLine = last;
- m_CursorPos.y ++;
- rc = false;
- }
- else
- {
- if(m_CursorPos.x > m_CursorLine->GetLength())
- m_CursorPos.x = m_CursorLine->GetLength();
- rc = true;
- }
- }
-
- m_movedCursor = m_CursorPos != cursorPosOld;
-
- return rc;
-}
-
-bool
-wxLayoutList::MoveCursorHorizontally(int n)
-{
- AddCursorPosToUpdateRect();
-
- wxPoint cursorPosOld = m_CursorPos;
-
- int move;
- while(n < 0)
- {
- if(m_CursorPos.x == 0) // at begin of line
- {
- if(! MoveCursorVertically(-1))
- break;
- MoveCursorToEndOfLine();
- n++;
- continue;
- }
- move = -n;
- if(move > m_CursorPos.x) move = m_CursorPos.x;
- m_CursorPos.x -= move; n += move;
- }
-
- while(n > 0)
- {
- int len = m_CursorLine->GetLength();
- if(m_CursorPos.x == len) // at end of line
- {
- if(! MoveCursorVertically(1))
- break;
- MoveCursorToBeginOfLine();
- n--;
- continue;
- }
- move = n;
- if( move >= len-m_CursorPos.x) move = len-m_CursorPos.x;
- m_CursorPos.x += move;
- n -= move;
- }
-
- m_movedCursor = m_CursorPos != cursorPosOld;
-
- return n == 0;
-}
-
-bool
-wxLayoutList::MoveCursorWord(int n)
-{
- wxCHECK_MSG( m_CursorLine, false, "no current line" );
- wxCHECK_MSG( n == -1 || n == +1, false, "not implemented yet" );
-
- CoordType moveDistance = 0;
- CoordType offset;
- for ( wxLOiterator i = m_CursorLine->FindObject(m_CursorPos.x, &offset);
- n != 0;
- n > 0 ? i++ : i-- )
- {
- if ( i == NULLIT )
- return false;
-
- wxLayoutObject *obj = *i;
- if( obj->GetType() != WXLO_TYPE_TEXT )
- {
- // any non text objects count as one word
- n > 0 ? n-- : n++;
-
- moveDistance += obj->GetLength();
- }
- else
- {
- // text object
- wxLayoutObjectText *tobj = (wxLayoutObjectText *)obj;
-
- if ( offset == tobj->GetLength() )
- {
- // at end of object
- n > 0 ? n-- : n++;
- }
- else
- {
- const char *start = tobj->GetText().c_str();
- const char *p = start + offset;
-
- // to the beginning/end of the next/prev word
- while ( isspace(*p) )
- {
- n > 0 ? p++ : p--;
- }
-
- // go to the end/beginning of the word (in a broad sense...)
- while ( p >= start && !isspace(*p) )
- {
- n > 0 ? p++ : p--;
- }
-
- if ( n > 0 )
- {
- // now advance to the beginning of the next word
- while ( isspace(*p) )
- p++;
- }
-
- n > 0 ? n-- : n++;
-
- moveDistance = p - start - offset;
- }
- }
-
- // except for the first iteration, offset is 0
- offset = 0;
- }
-
- MoveCursorHorizontally(moveDistance);
-
- return true;
-}
-
-bool
-wxLayoutList::Insert(wxString const &text)
-{
- wxASSERT(m_CursorLine);
- wxASSERT_MSG( text.Find('\n') == wxNOT_FOUND, "use wxLayoutImportText!" );
-
- if ( !text )
- return true;
-
- AddCursorPosToUpdateRect();
-
- if ( !m_CursorLine->Insert(m_CursorPos.x, text) )
- return false;
-
- m_CursorPos.x += text.Length();
-
- m_movedCursor = true;
-
- m_CursorLine->RecalculatePositions(0, this);
-
- return true;
-}
-
-bool
-wxLayoutList::Insert(wxLayoutObject *obj)
-{
- wxASSERT(m_CursorLine);
-
- if(! m_CursorLine)
- m_CursorLine = GetFirstLine();
-
- AddCursorPosToUpdateRect();
-
- m_CursorLine->Insert(m_CursorPos.x, obj);
- m_CursorPos.x += obj->GetLength();
- m_movedCursor = true;
-
- m_CursorLine->RecalculatePositions(0, this);
-
- return true;
-}
-
-bool
-wxLayoutList::Insert(wxLayoutList *llist)
-{
- wxASSERT(llist);
- bool rc = TRUE;
-
- for(wxLayoutLine *line = llist->GetFirstLine();
- line;
- line = line->GetNextLine()
- )
- {
- for(wxLOiterator i = line->GetFirstObject();
- i != NULLIT;
- i++)
- rc |= Insert(*i);
- LineBreak();
- }
- return rc;
-}
-
-bool
-wxLayoutList::LineBreak(void)
-{
- wxASSERT(m_CursorLine);
- bool setFirst = (m_CursorLine == m_FirstLine && m_CursorPos.x == 0);
-
- AddCursorPosToUpdateRect();
-
- wxPoint position(m_CursorLine->GetPosition());
-
- CoordType
- width = m_CursorLine->GetWidth(),
- height = m_CursorLine->GetHeight();
-
- m_CursorLine = m_CursorLine->Break(m_CursorPos.x, this);
- if(setFirst) // we were at beginning of first line
- m_FirstLine = m_CursorLine->GetPreviousLine();
- if(m_CursorPos.x != 0)
- m_CursorPos.y++;
- m_CursorPos.x = 0;
-
- wxLayoutLine *prev = m_CursorLine->GetPreviousLine();
- wxCHECK_MSG(prev, false, "just broke the line, where is the previous one?");
-
- height += prev->GetHeight();
-
- m_movedCursor = true;
-
- SetUpdateRect(position);
- SetUpdateRect(position.x + width + MSW_CORRECTION,
- position.y + height + MSW_CORRECTION);
-
- return true;
-}
-
-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->RecalculatePositions(1, this);
-
- m_movedCursor = true;
-
- return true;
- }
-}
-
-bool
-wxLayoutList::Delete(CoordType npos)
-{
- wxCHECK_MSG(m_CursorLine, false, "can't delete in non existing line");
-
- if ( npos == 0 )
- return true;
-
- AddCursorPosToUpdateRect();
-
- // were other lines appended to this one (this is important to know because
- // this means that our width _increased_ as the result of deletion)
- bool wasMerged = false;
-
- // the size of the region to update
- CoordType totalHeight = m_CursorLine->GetHeight(),
- totalWidth = m_CursorLine->GetWidth();
-
- CoordType left;
- do
- {
- left = m_CursorLine->Delete(m_CursorPos.x, npos);
-
- if( left > 0 )
- {
- // More to delete, continue on next line.
-
- // First, check if line is empty:
- if(m_CursorLine->GetLength() == 0)
- {
- // in this case, updating could probably be optimised
-#ifdef WXLO_DEBUG
- wxASSERT(DeleteLines(1) == 0);
-#else
- DeleteLines(1);
-#endif
-
- left--;
- }
- else
- {
- // Need to join next line
- if(! m_CursorLine->GetNextLine())
- break; // cannot
- else
- {
- wasMerged = true;
- wxLayoutLine *next = m_CursorLine->GetNextLine();
- if ( next )
- {
- totalHeight += next->GetHeight();
- totalWidth += next->GetWidth();
-
- m_CursorLine->MergeNextLine(this);
- left--;
- }
- else
- {
- wxFAIL_MSG("can't delete all this");
-
- return false;
- }
- }
- }
- }
- }
- while ( left> 0 );
-
- // we need to update the whole tail of the line and the lines which
- // disappeared
- if ( wasMerged )
- {
- wxPoint position(m_CursorLine->GetPosition());
- SetUpdateRect(position);
- SetUpdateRect(position.x + totalWidth + MSW_CORRECTION,
- position.y + totalHeight + MSW_CORRECTION);
- }
-
- return left == 0;
-}
-
-int
-wxLayoutList::DeleteLines(int n)
-{
- wxASSERT(m_CursorLine);
- wxLayoutLine *line;
-
- AddCursorPosToUpdateRect();
-
- while(n > 0)
- {
- if(!m_CursorLine->GetNextLine())
- { // we cannot delete this line, but we can clear it
- MoveCursorToBeginOfLine();
- DeleteToEndOfLine();
- m_CursorLine->RecalculatePositions(2, this);
- return n-1;
- }
- //else:
- line = m_CursorLine;
- m_CursorLine = m_CursorLine->DeleteLine(true, this);
- n--;
- if(line == m_FirstLine) m_FirstLine = m_CursorLine;
- wxASSERT(m_FirstLine);
- wxASSERT(m_CursorLine);
- }
- m_CursorLine->RecalculatePositions(2, this);
- return n;
-}
-
-void
-wxLayoutList::Recalculate(wxDC &dc, CoordType bottom)
-{
- wxLayoutLine *line = m_FirstLine;
-
- // first, make sure everything is calculated - this might not be
- // needed, optimise it later
- ApplyStyle(m_DefaultStyleInfo, dc);
- while(line)
- {
- line->RecalculatePosition(this); // so we don't need to do it all the time
- // little condition to speed up redrawing:
- if(bottom != -1 && line->GetPosition().y > bottom) break;
- line = line->GetNextLine();
- }
-}
-
-void
-wxLayoutList::UpdateCursorScreenPos(wxDC &dc,
- bool resetCursorMovedFlag,
- const wxPoint& translate)
-{
- wxCHECK_RET( m_CursorLine, "no cursor line" );
-
- if ( m_movedCursor )
- {
- // we need to save the current style, in case the layout() of
- // the line changes it
- wxLayoutStyleInfo SiBackup = m_CurrentStyleInfo;
- m_CursorLine->Layout(dc, this,
- &m_CursorScreenPos, &m_CursorSize,
- m_CursorPos.x,
- /* suppress update */ true);
- ApplyStyle(SiBackup, dc); // restore it
-
- if ( resetCursorMovedFlag )
- {
-#ifdef WXLAYOUT_USE_CARET
- // adjust the caret position
- wxPoint coords(m_CursorScreenPos);
- coords += translate;
-
- // and set it
- m_caret->Move(coords);
-#endif // WXLAYOUT_USE_CARET
-
- m_movedCursor = false;
- }
- }
-}
-
-wxPoint
-wxLayoutList::GetCursorScreenPos(wxDC &dc)
-{
- // this function is called with wxMemoryDC argument from ScrollToCursor(),
- // for example, so it shouldn't clear "cursor moved" flag - or else the
- // cursor won't be moved when UpdateCursorScreenPos() is called with the
- // "real" (i.e. the one used for drawing) wxDC.
- UpdateCursorScreenPos(dc, false /* don't reset the flag */);
-
- return m_CursorScreenPos;
-}
-
-/*
- Is called before each Draw(). Now, it will re-layout all lines which
- have changed.
-*/
-void
-wxLayoutList::Layout(wxDC &dc, CoordType bottom, bool forceAll)
-{
- // first, make sure everything is calculated - this might not be
- // needed, optimise it later
- ApplyStyle(m_DefaultStyleInfo, dc);
-
- // This one we always Layout() to get the current cursor
- // coordinates on the screen:
- m_CursorLine->MarkDirty();
- bool wasDirty = false;
- wxLayoutLine *line = m_FirstLine;
- while(line)
- {
- if(! wasDirty)
- ApplyStyle(line->GetStyleInfo(), dc);
- if(forceAll || line->IsDirty())
- {
- // The following Layout() calls will update our
- // m_CurrentStyleInfo if needed.
- if(line == m_CursorLine)
- line->Layout(dc, this,
- (wxPoint *)&m_CursorScreenPos,
- (wxPoint *)&m_CursorSize, m_CursorPos.x);
- else
- line->Layout(dc, this);
-
- // little condition to speed up redrawing:
- if(bottom != -1 && line->GetPosition().y > bottom)
- break;
- wasDirty = true;
- }
- line->RecalculatePositions(1, this);
- line = line->GetNextLine();
- }
-
- // can only be 0 if we are on the first line and have no next line
- wxASSERT(m_CursorSize.x != 0 || (m_CursorLine &&
- m_CursorLine->GetNextLine() == NULL &&
- m_CursorLine == m_FirstLine));
- AddCursorPosToUpdateRect();
-}
-
-void
-wxLayoutList::Draw(wxDC &dc,
- wxPoint const &offset,
- CoordType top,
- CoordType bottom)
-{
- wxLayoutLine *line = m_FirstLine;
-
- /* We need to re-layout all dirty lines to update styleinfos
- etc. However, somehow we don't find all dirty lines... */
- Layout(dc); //,-1,true); //FIXME
- ApplyStyle(m_DefaultStyleInfo, dc);
- wxBrush brush(m_CurrentStyleInfo.m_bg, wxSOLID);
- dc.SetBrush(brush);
- dc.SetBackgroundMode(wxTRANSPARENT);
-
- bool style_set = false;
- while(line)
- {
- // only draw if between top and bottom:
- if((top == -1 ||
- line->GetPosition().y + line->GetHeight() >= top))
- {
-// if(! style_set)
- {
- ApplyStyle(line->GetStyleInfo(), dc);
- style_set = true;
- }
- line->Draw(dc, this, offset);
- }
-#if 0
- else
- line->Layout(dc, this);
-#endif
- // little condition to speed up redrawing:
- if(bottom != -1 && line->GetPosition().y > bottom) break;
- line = line->GetNextLine();
- }
- InvalidateUpdateRect();
-
- WXLO_DEBUG(("Selection is %s : l%d,%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));
-}
-
-wxLayoutObject *
-wxLayoutList::FindObjectScreen(wxDC &dc, wxPoint const pos,
- wxPoint *cursorPos,
- bool *found)
-{
- // First, find the right line:
- wxLayoutLine *line = m_FirstLine;
- wxPoint p;
-
- ApplyStyle(m_DefaultStyleInfo, dc);
- while(line)
- {
- p = line->GetPosition();
- if(p.y <= pos.y && p.y+line->GetHeight() >= pos.y)
- break;
-#if 0
- // we need to run a layout here to get font sizes right :-(
-
- // VZ: we can't call Layout() from here because it marks the line as
- // clean and it is not refreshed when it's called from wxLayoutList::
- // Layout() - if we really need to do this, we should introduce an
- // extra argument to Layout() to prevent the line from MarkClean()ing
- // itself here
- line->Layout(dc, this);
-#endif
- line = line->GetNextLine();
- }
- if(line == NULL)
- {
- if(found) *found = false;
- return NULL; // not found
- }
- if(cursorPos) cursorPos->y = line->GetLineNumber();
- // Now, find the object in the line:
- wxLOiterator i = line->FindObjectScreen(dc, pos.x,
- cursorPos ? & cursorPos->x : NULL ,
- found);
- return (i == NULLIT) ? NULL : *i;
-
-}
-
-wxPoint
-wxLayoutList::GetSize(void) const
-{
- wxLayoutLine
- *line = m_FirstLine,
- *last = line;
- if(! line)
- return wxPoint(0,0);
-
- wxPoint maxPoint(0,0);
-
- // find last line:
- while(line)
- {
- if(line->GetWidth() > maxPoint.x)
- maxPoint.x = line->GetWidth();
- last = line;
- line = line->GetNextLine();
- }
-
- maxPoint.y = last->GetPosition().y + last->GetHeight();
-
- // if the line was just added, its height would be 0 and we can't call
- // Layout() from here because we don't have a dc and we might be not drawing
- // at all, besides... So take the cursor height by default (taking 0 is bad
- // because then the scrollbars won't be resized and the new line won't be
- // shown at all)
- if ( last->IsDirty() )
- {
- if ( last->GetHeight() == 0 )
- maxPoint.y += m_CursorSize.y;
- if ( last->GetWidth() == 0 && maxPoint.x < m_CursorSize.x )
- maxPoint.x = m_CursorSize.x;
- }
-
- return maxPoint;
-}
-
-
-void
-wxLayoutList::DrawCursor(wxDC &dc, bool active, wxPoint const &translate)
-{
- wxPoint coords(m_CursorScreenPos);
- coords += 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)m_CursorSize.x, (long)m_CursorSize.y,
- (long)m_CursorLine->GetLineNumber(),
- (long)m_CursorLine->GetLength()));
-
- wxLogStatus("Cursor is at (%d, %d)", m_CursorPos.x, m_CursorPos.y);
-#endif
-
-#ifndef WXLAYOUT_USE_CARET
- dc.SetBrush(*wxBLACK_BRUSH);
- dc.SetLogicalFunction(wxXOR);
- dc.SetPen(wxPen(*wxBLACK,1,wxSOLID));
- if(active)
- {
- 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);
- }
- else
- {
- dc.DrawLine(coords.x, coords.y+m_CursorSize.y-1,
- coords.x, coords.y);
- SetUpdateRect(coords.x, coords.y+m_CursorSize.y-1);
- SetUpdateRect(coords.x, coords.y);
- }
- dc.SetLogicalFunction(wxCOPY);
- //dc.SetBrush(wxNullBrush);
-#endif // WXLAYOUT_USE_CARET/!WXLAYOUT_USE_CARET
-}
-
-void
-wxLayoutList::SetUpdateRect(CoordType x, CoordType y)
-{
- if(m_UpdateRectValid)
- GrowRect(m_UpdateRect, x, y);
- else
- {
- m_UpdateRect.x = x;
- m_UpdateRect.y = y;
- m_UpdateRect.width = 4; // large enough to avoid surprises from
- m_UpdateRect.height = 4;// wxGTK :-)
- m_UpdateRectValid = true;
- }
-}
-
-void
-wxLayoutList::StartSelection(const wxPoint& cposOrig, const wxPoint& spos)
-{
- wxPoint cpos(cposOrig);
- if ( cpos.x == -1 )
- cpos = m_CursorPos;
- WXLO_DEBUG(("Starting selection at %ld/%ld", cpos.x, cpos.y));
- m_Selection.m_CursorA = cpos;
- m_Selection.m_CursorB = cpos;
- m_Selection.m_ScreenA = spos;
- m_Selection.m_ScreenB = spos;
- m_Selection.m_selecting = true;
- m_Selection.m_valid = false;
-}
-
-void
-wxLayoutList::ContinueSelection(const wxPoint& cposOrig, const wxPoint& spos)
-{
- wxPoint cpos(cposOrig);
- if(cpos.x == -1)
- cpos = m_CursorPos;
-
- wxASSERT(m_Selection.m_selecting == true);
- wxASSERT(m_Selection.m_valid == false);
- WXLO_DEBUG(("Continuing selection at %ld/%ld", cpos.x, cpos.y));
-
- if ( m_Selection.m_CursorB <= cpos )
- {
- m_Selection.m_ScreenB = spos;
- m_Selection.m_CursorB = cpos;
- }
- else
- {
- m_Selection.m_ScreenA = spos;
- m_Selection.m_CursorA = cpos;
- }
-
- // we always want m_CursorA <= m_CursorB!
- if( m_Selection.m_CursorA > m_Selection.m_CursorB )
- {
- // exchange the start/end points
- wxPoint help = m_Selection.m_CursorB;
- m_Selection.m_CursorB = m_Selection.m_CursorA;
- m_Selection.m_CursorA = help;
-
- help = m_Selection.m_ScreenB;
- m_Selection.m_ScreenB = m_Selection.m_ScreenA;
- m_Selection.m_ScreenA = help;
- }
-}
-
-void
-wxLayoutList::EndSelection(const wxPoint& cposOrig, const wxPoint& spos)
-{
- wxPoint cpos(cposOrig);
- if(cpos.x == -1)
- cpos = m_CursorPos;
- ContinueSelection(cpos);
- WXLO_DEBUG(("Ending selection at %ld/%ld", cpos.x, cpos.y));
- m_Selection.m_selecting = false;
- m_Selection.m_valid = true;
-}
-
-void
-wxLayoutList::DiscardSelection()
-{
- if ( !HasSelection() )
- return;
-
- m_Selection.m_valid =
- m_Selection.m_selecting = false;
-
- // invalidate the area which was previousle selected - and which is not
- // selected any more
- if ( m_Selection.HasValidScreenCoords() )
- {
- SetUpdateRect(m_Selection.m_ScreenA);
- SetUpdateRect(m_Selection.m_ScreenB);
- }
- else
- {
- // TODO
- }
-}
-
-bool
-wxLayoutList::IsSelecting(void)
-{
- return m_Selection.m_selecting;
-}
-
-bool
-wxLayoutList::IsSelected(const wxPoint &cursor)
-{
- if ( !HasSelection() )
- return false;
-
- return m_Selection.m_CursorA <= cursor && cursor <= m_Selection.m_CursorB;
-}
-
-
-/** Tests whether this layout line is selected and needs
- highlighting.
- @param line to test for
- @return 0 = not selected, 1 = fully selected, -1 = partially
- selected
- */
-int
-wxLayoutList::IsSelected(const wxLayoutLine *line, CoordType *from,
- CoordType *to)
-{
- wxASSERT(line); wxASSERT(to); wxASSERT(from);
-
- if(! m_Selection.m_valid && ! m_Selection.m_selecting)
- return 0;
-
- CoordType y = line->GetLineNumber();
- if(m_Selection.m_CursorA.y < y && m_Selection.m_CursorB.y > y)
- return 1;
- else if(m_Selection.m_CursorA.y == y)
- {
- *from = m_Selection.m_CursorA.x;
- if(m_Selection.m_CursorB.y == y)
- *to = m_Selection.m_CursorB.x;
- else
- *to = line->GetLength();
- return -1;
- }
- else if(m_Selection.m_CursorB.y == y)
- {
- *to = m_Selection.m_CursorB.x;
- if(m_Selection.m_CursorA.y == y)
- *from = m_Selection.m_CursorA.x;
- else
- *from = 0;
- return -1;
- }
- else
- return 0;
-}
-
-void
-wxLayoutList::DeleteSelection(void)
-{
- if(! m_Selection.m_valid)
- return;
-
- m_Selection.m_valid = false;
-
- // Only delete part of the current line?
- if(m_Selection.m_CursorA.y == m_Selection.m_CursorB.y)
- {
- MoveCursorTo(m_Selection.m_CursorA);
- Delete(m_Selection.m_CursorB.x - m_Selection.m_CursorA.x);
- return;
- }
-
-
- wxLayoutLine
- * firstLine = NULL,
- * lastLine = NULL;
-
- for(firstLine = m_FirstLine;
- firstLine && firstLine->GetLineNumber() < m_Selection.m_CursorA.y;
- firstLine=firstLine->GetNextLine())
- ;
- if(!firstLine || firstLine->GetLineNumber() != m_Selection.m_CursorA.y)
- return;
-
-
- for(lastLine = m_FirstLine;
- lastLine && lastLine->GetLineNumber() < m_Selection.m_CursorB.y;
- lastLine=lastLine->GetNextLine())
- ;
- if(!lastLine || lastLine->GetLineNumber() != m_Selection.m_CursorB.y)
- return;
-
-
- // We now know that the two lines are different:
-
- // First, delete what's left of this line:
- MoveCursorTo(m_Selection.m_CursorA);
- DeleteToEndOfLine();
-
- wxLayoutLine *nextLine = firstLine->GetNextLine();
- while(nextLine && nextLine != lastLine)
- nextLine = nextLine->DeleteLine(false, this);
-
- // Now nextLine = lastLine;
- Delete(1); // This joins firstLine and nextLine
- Delete(m_Selection.m_CursorB.x); // This deletes the first x
- // positions
-
- /// Recalculate:
- firstLine->RecalculatePositions(1, this);
-}
-
-/// Starts highlighting the selection
-void
-wxLayoutList::StartHighlighting(wxDC &dc)
-{
-#if SHOW_SELECTIONS
- dc.SetTextForeground(m_CurrentStyleInfo.m_bg);
- dc.SetTextBackground(m_CurrentStyleInfo.m_fg);
- dc.SetBackgroundMode(wxSOLID);
-#endif
-}
-
-/// Ends highlighting the selection
-void
-wxLayoutList::EndHighlighting(wxDC &dc)
-{
-#if SHOW_SELECTIONS
- dc.SetTextForeground(m_CurrentStyleInfo.m_fg);
- dc.SetTextBackground(m_CurrentStyleInfo.m_bg);
- dc.SetBackgroundMode(wxTRANSPARENT);
-#endif
-}
-
-
-wxLayoutList *
-wxLayoutList::Copy(const wxPoint &from,
- const wxPoint &to)
-{
- wxLayoutLine
- * firstLine = NULL,
- * lastLine = NULL;
-
- for(firstLine = m_FirstLine;
- firstLine && firstLine->GetLineNumber() < from.y;
- firstLine=firstLine->GetNextLine())
- ;
- if(!firstLine || firstLine->GetLineNumber() != from.y)
- return NULL;
-
- for(lastLine = m_FirstLine;
- lastLine && lastLine->GetLineNumber() < to.y;
- lastLine=lastLine->GetNextLine())
- ;
- if(!lastLine || lastLine->GetLineNumber() != to.y)
- return NULL;
-
- if(to <= from)
- {
- wxLayoutLine *tmp = firstLine;
- firstLine = lastLine;
- lastLine = tmp;
- }
-
- wxLayoutList *llist = new wxLayoutList();
-
- if(firstLine == lastLine)
- {
- firstLine->Copy(llist, from.x, to.x);
- }
- else
- {
- // Extract objects from first line
- firstLine->Copy(llist, from.x);
- llist->LineBreak();
- // Extract all lines between
- for(wxLayoutLine *line = firstLine->GetNextLine();
- line != lastLine;
- line = line->GetNextLine())
- {
- line->Copy(llist);
- llist->LineBreak();
- }
- // Extract objects from last line
- lastLine->Copy(llist, 0, to.x);
- }
- return llist;
-}
-
-wxLayoutList *
-wxLayoutList::GetSelection(wxLayoutDataObject *wxlo, bool invalidate)
-{
- if(! m_Selection.m_valid)
- {
- if(m_Selection.m_selecting)
- EndSelection();
- else
- return NULL;
- }
-
- if(invalidate) m_Selection.m_valid = false;
-
- wxLayoutList *llist = Copy( m_Selection.m_CursorA,
- m_Selection.m_CursorB );
-
- if(llist && wxlo) // export as data object, too
- {
- wxString string;
-
- wxLayoutExportObject *export;
- wxLayoutExportStatus status(llist);
- while((export = wxLayoutExport( &status, WXLO_EXPORT_AS_OBJECTS)) != NULL)
- {
- if(export->type == WXLO_EXPORT_EMPTYLINE)
- ; //FIXME missing support for linebreaks in string format
- else
- export->content.object->Write(string);
- delete export;
- }
-
- wxlo->SetData(string.c_str(), string.Length()+1);
- }
- return llist;
-}
-
-
-
-#define COPY_SI(what) if(si.what != -1) { m_CurrentStyleInfo.what = si.what; fontChanged = TRUE; }
-
-void
-wxLayoutList::ApplyStyle(wxLayoutStyleInfo const &si, wxDC &dc)
-{
- bool fontChanged = FALSE;
- COPY_SI(family);
- COPY_SI(size);
- COPY_SI(style);
- COPY_SI(weight);
- COPY_SI(underline);
- if(fontChanged)
- dc.SetFont( m_FontCache.GetFont(m_CurrentStyleInfo) );
-
- if(si.m_fg_valid)
- {
- m_CurrentStyleInfo.m_fg = si.m_fg;
- dc.SetTextForeground(m_CurrentStyleInfo.m_fg);
- }
- if(si.m_bg_valid)
- {
- m_CurrentStyleInfo.m_bg = si.m_bg;
- dc.SetTextBackground(m_CurrentStyleInfo.m_bg);
- }
-}
-
-
-#ifdef WXLAYOUT_DEBUG
-
-void
-wxLayoutList::Debug(void)
-{
- WXLO_DEBUG(("Cursor is in line %d, screen pos = (%d, %d)",
- m_CursorLine->GetLineNumber(),
- m_CursorScreenPos.x, m_CursorScreenPos.y));
-
- wxLayoutLine *line;
- for(line = m_FirstLine; line; line = line->GetNextLine())
- {
- line->Debug();
- }
-}
-
-#endif
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- wxLayoutPrintout
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-wxLayoutPrintout::wxLayoutPrintout(wxLayoutList *llist,
- wxString const & title)
-:wxPrintout(title)
-{
- m_llist = llist;
- m_title = title;
- // remove any highlighting which could interfere with printing:
- m_llist->StartSelection();
- m_llist->EndSelection();
-}
-
-wxLayoutPrintout::~wxLayoutPrintout()
-{
-}
-
-float
-wxLayoutPrintout::ScaleDC(wxDC *dc)
-{
- // The following bit is taken from the printing sample, let's see
- // whether it works for us.
-
- /* You might use THIS code to set the printer DC to ROUGHLY reflect
- * the screen text size. This page also draws lines of actual length 5cm
- * on the page.
- */
- // Get the logical pixels per inch of screen and printer
- int ppiScreenX, ppiScreenY;
- GetPPIScreen(&ppiScreenX, &ppiScreenY);
- int ppiPrinterX, ppiPrinterY;
- GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
-
- if(ppiScreenX == 0) // not yet set, need to guess
- {
- ppiScreenX = 100;
- ppiScreenY = 100;
- }
- if(ppiPrinterX == 0) // not yet set, need to guess
- {
- ppiPrinterX = 72;
- ppiPrinterY = 72;
- }
-
- // This scales the DC so that the printout roughly represents the
- // the screen scaling. The text point size _should_ be the right size
- // but in fact is too small for some reason. This is a detail that will
- // need to be addressed at some point but can be fudged for the
- // moment.
- float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
-
- // Now we have to check in case our real page size is reduced
- // (e.g. because we're drawing to a print preview memory DC)
- int pageWidth, pageHeight;
- int w, h;
- dc->GetSize(&w, &h);
- GetPageSizePixels(&pageWidth, &pageHeight);
- if(pageWidth != 0) // doesn't work always
- {
- // If printer pageWidth == current DC width, then this doesn't
- // change. But w might be the preview bitmap width, so scale down.
- scale = scale * (float)(w/(float)pageWidth);
- }
- dc->SetUserScale(scale, scale);
- return scale;
-}
-
-bool wxLayoutPrintout::OnPrintPage(int page)
-{
- wxDC *dc = GetDC();
-
- ScaleDC(dc);
-
- if (dc)
- {
- int top, bottom;
- top = (page - 1)*m_PrintoutHeight;
- bottom = top + m_PrintoutHeight;
- // SetDeviceOrigin() doesn't work here, so we need to manually
- // translate all coordinates.
- wxPoint translate(m_Offset.x,m_Offset.y-top);
- m_llist->Draw(*dc, translate, top, bottom);
- return true;
- }
- else
- return false;
-}
-
-void wxLayoutPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
-{
- /* We allocate a temporary wxDC for printing, so that we can
- determine the correct paper size and scaling. We don't actually
- print anything on it. */
-#ifdef __WXMSW__
- wxPrinterDC psdc("","",WXLLIST_TEMPFILE,false);
-#else
- wxPostScriptDC psdc(WXLLIST_TEMPFILE,false);
-#endif
-
- float scale = ScaleDC(&psdc);
-
- psdc.GetSize(&m_PageWidth, &m_PageHeight);
- // This sets a left/top origin of 15% and 20%:
- m_Offset = wxPoint((15*m_PageWidth)/100, m_PageHeight/20);
-
- // This is the length of the printable area.
- m_PrintoutHeight = m_PageHeight - (int) (m_PageHeight * 0.15);
- m_PrintoutHeight = (int)( m_PrintoutHeight / scale); // we want to use the real paper height
-
-
- m_NumOfPages = 1 +
- (int)( m_llist->GetSize().y / (float)(m_PrintoutHeight));
-
- *minPage = 1;
- *maxPage = m_NumOfPages;
-
- *selPageFrom = 1;
- *selPageTo = m_NumOfPages;
- wxRemoveFile(WXLLIST_TEMPFILE);
-}
-
-bool wxLayoutPrintout::HasPage(int pageNum)
-{
- return pageNum <= m_NumOfPages;
-}
-
-/*
- Stupid wxWindows doesn't draw proper ellipses, so we comment this
- out. It's a waste of paper anyway.
-*/
-#if 0
-void
-wxLayoutPrintout::DrawHeader(wxDC &dc,
- wxPoint topleft, wxPoint bottomright,
- int pageno)
-{
- // make backups of all essential parameters
- const wxBrush& brush = dc.GetBrush();
- const wxPen& pen = dc.GetPen();
- const wxFont& font = dc.GetFont();
-
- dc.SetBrush(*wxWHITE_BRUSH);
- dc.SetPen(wxPen(*wxBLACK,0,wxSOLID));
- dc.DrawRoundedRectangle(topleft.x,
- topleft.y,bottomright.x-topleft.x,
- bottomright.y-topleft.y);
- dc.SetBrush(*wxBLACK_BRUSH);
- wxFont myfont = wxFont((WXLO_DEFAULTFONTSIZE*12)/10,
- wxSWISS,wxNORMAL,wxBOLD,false,"Helvetica");
- dc.SetFont(myfont);
-
- wxString page;
- page = "9999/9999 "; // many pages...
- long w,h;
- dc.GetTextExtent(page,&w,&h);
- page.Printf("%d/%d", pageno, (int) m_NumOfPages);
- dc.DrawText(page,bottomright.x-w,topleft.y+h/2);
- dc.GetTextExtent("XXXX", &w,&h);
- dc.DrawText(m_title, topleft.x+w,topleft.y+h/2);
-
- // restore settings
- dc.SetPen(pen);
- dc.SetBrush(brush);
- dc.SetFont(font);
-}
-#endif
-
-
-wxFont &
-wxFontCache::GetFont(int family, int size, int style, int weight,
- bool underline)
-{
- for(wxFCEList::iterator i = m_FontList.begin();
- i != m_FontList.end(); i++)
- if( (**i).Matches(family, size, style, weight, underline) )
- return (**i).GetFont();
- // not found:
- wxFontCacheEntry *fce = new wxFontCacheEntry(family, size, style,
- weight, underline);
- m_FontList.push_back(fce);
- return fce->GetFont();
-}
-
projects / wxWidgets.git / commitdiff
