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83624f79609f0d5e240c1f7d77d044bfff9702fc
wxWidgets/src/gtk1/dcps.cpp
Robert Roebling 83624f7960 Header changes (gtk.h etc no longer included in defs.h 
but in *.cpp to speed up compilation (?) )


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1307 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-01-02 19:13:25 +00:00

1668 lines
51 KiB
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/////////////////////////////////////////////////////////////////////////////
// Name: dcps.cpp
// Purpose: wxPostScriptDC implementation
// Author: Julian Smart, Robert Roebling, Markus Holzhem
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation
#pragma interface
#endif
#include "wx/postscrp.h"
#include "wx/dcmemory.h"
#include "wx/utils.h"
#include "wx/intl.h"
#include "wx/filedlg.h"
#include "wx/app.h"
#include "wx/msgdlg.h"
#include "wx/image.h"
#include "wx/log.h"
#include "gdk/gdk.h"
#include "gtk/gtk.h"
//-----------------------------------------------------------------------------
// start and end of document/page
//-----------------------------------------------------------------------------
static const char *wxPostScriptHeaderEllipse = "\
/ellipsedict 8 dict def\n\
ellipsedict /mtrx matrix put\n\
/ellipse {\n\
ellipsedict begin\n\
/endangle exch def\n\
/startangle exch def\n\
/yrad exch def\n\
/xrad exch def\n\
/y exch def\n\
/x exch def\n\
/savematrix mtrx currentmatrix def\n\
x y translate\n\
xrad yrad scale\n\
0 0 1 startangle endangle arc\n\
savematrix setmatrix\n\
end\n\
} def\n\
";
static const char *wxPostScriptHeaderEllipticArc= "\
/ellipticarcdict 8 dict def\n\
ellipticarcdict /mtrx matrix put\n\
/ellipticarc\n\
{ ellipticarcdict begin\n\
/do_fill exch def\n\
/endangle exch def\n\
/startangle exch def\n\
/yrad exch def\n\
/xrad exch def \n\
/y exch def\n\
/x exch def\n\
/savematrix mtrx currentmatrix def\n\
x y translate\n\
xrad yrad scale\n\
do_fill { 0 0 moveto } if\n\
0 0 1 startangle endangle arc\n\
savematrix setmatrix\n\
do_fill { fill }{ stroke } ifelse\n\
end\n\
} def\n";
static const char *wxPostScriptHeaderSpline = "\
/DrawSplineSection {\n\
/y3 exch def\n\
/x3 exch def\n\
/y2 exch def\n\
/x2 exch def\n\
/y1 exch def\n\
/x1 exch def\n\
/xa x1 x2 x1 sub 0.666667 mul add def\n\
/ya y1 y2 y1 sub 0.666667 mul add def\n\
/xb x3 x2 x3 sub 0.666667 mul add def\n\
/yb y3 y2 y3 sub 0.666667 mul add def\n\
x1 y1 lineto\n\
xa ya xb yb x3 y3 curveto\n\
} def\n\
";
static const char *wxPostScriptHeaderColourImage = "\
% define 'colorimage' if it isn't defined\n\
% ('colortogray' and 'mergeprocs' come from xwd2ps\n\
% via xgrab)\n\
/colorimage where % do we know about 'colorimage'?\n\
{ pop } % yes: pop off the 'dict' returned\n\
{ % no: define one\n\
/colortogray { % define an RGB->I function\n\
/rgbdata exch store % call input 'rgbdata'\n\
rgbdata length 3 idiv\n\
/npixls exch store\n\
/rgbindx 0 store\n\
0 1 npixls 1 sub {\n\
grays exch\n\
rgbdata rgbindx get 20 mul % Red\n\
rgbdata rgbindx 1 add get 32 mul % Green\n\
rgbdata rgbindx 2 add get 12 mul % Blue\n\
add add 64 idiv % I = .5G + .31R + .18B\n\
put\n\
/rgbindx rgbindx 3 add store\n\
} for\n\
grays 0 npixls getinterval\n\
} bind def\n\
\n\
% Utility procedure for colorimage operator.\n\
% This procedure takes two procedures off the\n\
% stack and merges them into a single procedure.\n\
\n\
/mergeprocs { % def\n\
dup length\n\
3 -1 roll\n\
dup\n\
length\n\
dup\n\
5 1 roll\n\
3 -1 roll\n\
add\n\
array cvx\n\
dup\n\
3 -1 roll\n\
0 exch\n\
putinterval\n\
dup\n\
4 2 roll\n\
putinterval\n\
} bind def\n\
\n\
/colorimage { % def\n\
pop pop % remove 'false 3' operands\n\
{colortogray} mergeprocs\n\
image\n\
} bind def\n\
} ifelse % end of 'false' case\n\
";
static char wxPostScriptHeaderReencodeISO1[] =
"\n/reencodeISO {\n"
"dup dup findfont dup length dict begin\n"
"{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n"
"/Encoding ISOLatin1Encoding def\n"
"currentdict end definefont\n"
"} def\n"
"/ISOLatin1Encoding [\n"
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
"/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n"
"/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n"
"/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n"
"/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n"
"/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n"
"/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n"
"/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n"
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
"/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n"
"/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n";
static char wxPostScriptHeaderReencodeISO2[] =
"/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n"
"/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n"
"/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n"
"/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n"
"/guillemotright/onequarter/onehalf/threequarters/questiondown\n"
"/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n"
"/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n"
"/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n"
"/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n"
"/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n"
"/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n"
"/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n"
"/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n"
"/yacute/thorn/ydieresis\n"
"] def\n\n";
//-------------------------------------------------------------------------------
// wxPostScriptDC
//-------------------------------------------------------------------------------
wxPostScriptDC::wxPostScriptDC ()
{
m_pstream = (ofstream*) NULL;
m_currentRed = 0;
m_currentGreen = 0;
m_currentBlue = 0;
m_pageNumber = 0;
m_clipping = FALSE;
m_underlinePosition = 0.0;
m_underlineThickness = 0.0;
m_signX = 1; // default x-axis left to right
m_signY = -1; // default y-axis bottom up -> top down
}
wxPostScriptDC::wxPostScriptDC (const wxString& file, bool interactive, wxWindow *parent)
{
m_pstream = (ofstream*) NULL;
m_currentRed = 0;
m_currentGreen = 0;
m_currentBlue = 0;
m_pageNumber = 0;
m_clipping = FALSE;
m_underlinePosition = 0.0;
m_underlineThickness = 0.0;
m_signX = 1; // default x-axis left to right
m_signY = -1; // default y-axis bottom up -> top down
Create(file, interactive, parent);
}
bool wxPostScriptDC::Create(const wxString& file, bool interactive, wxWindow *parent)
{
m_isInteractive = interactive;
m_title = "";
m_filename = file;
#ifdef __WXMSW__
// Can only send to file in Windows
wxThePrintSetupData->SetPrinterMode(PS_FILE);
#endif
if (m_isInteractive)
{
if ((m_ok = PrinterDialog (parent) ) == FALSE) return FALSE;
}
else
{
m_ok = TRUE;
}
return m_ok;
}
wxPostScriptDC::~wxPostScriptDC ()
{
if (m_pstream) delete m_pstream;
}
bool wxPostScriptDC::Ok() const
{
return m_ok;
}
bool wxPostScriptDC::PrinterDialog(wxWindow *parent)
{
wxPostScriptPrintDialog dialog( parent, _("Printer Settings"), wxPoint(150, 150), wxSize(400, 400),
wxDEFAULT_DIALOG_STYLE | wxDIALOG_MODAL );
m_ok = (dialog.ShowModal () == wxID_OK);
if (!m_ok) return FALSE;
if ((m_filename == "") &&
(wxThePrintSetupData->GetPrinterMode() == PS_PREVIEW ||
wxThePrintSetupData->GetPrinterMode() == PS_PRINTER))
{
// steve, 05.09.94
#ifdef __VMS__
wxThePrintSetupData->SetPrinterFile("preview");
#else
// For PS_PRINTER action this depends on a Unix-style print spooler
// since the wx_printer_file can be destroyed during a session
// @@@ TODO: a Windows-style answer for non-Unix
char userId[256];
wxGetUserId (userId, sizeof (userId) / sizeof (char));
char tmp[256];
strcpy (tmp, "/tmp/preview_");
strcat (tmp, userId);
wxThePrintSetupData->SetPrinterFile(tmp);
#endif
char tmp2[256];
strcpy(tmp2, wxThePrintSetupData->GetPrinterFile());
strcat (tmp2, ".ps");
wxThePrintSetupData->SetPrinterFile(tmp2);
m_filename = tmp2;
}
else if ((m_filename == "") && (wxThePrintSetupData->GetPrinterMode() == PS_FILE))
{
char *file = wxSaveFileSelector (_("PostScript"), "ps");
if (!file)
{
m_ok = FALSE;
return FALSE;
}
wxThePrintSetupData->SetPrinterFile(file);
m_filename = file;
m_ok = TRUE;
}
return m_ok;
}
void wxPostScriptDC::SetClippingRegion (long x, long y, long w, long h)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_clipping) return;
wxDC::SetClippingRegion( x, y, w, h );
m_clipping = TRUE;
*m_pstream << "gsave\n"
<< "newpath\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y) << " moveto\n"
<< XLOG2DEV(x+w) << " " << YLOG2DEV(y) << " lineto\n"
<< XLOG2DEV(x+w) << " " << YLOG2DEV(y+h) << " lineto\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y+h) << " lineto\n"
<< "closepath clip newpath\n";
}
void wxPostScriptDC::SetClippingRegion( const wxRegion &WXUNUSED(region) )
{
}
void wxPostScriptDC::DestroyClippingRegion()
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
wxDC::DestroyClippingRegion();
if (m_clipping)
{
m_clipping = FALSE;
*m_pstream << "grestore\n";
}
}
void wxPostScriptDC::Clear()
{
wxFAIL_MSG( "wxPostScriptDC::Clear not implemented." );
}
void wxPostScriptDC::FloodFill (long WXUNUSED(x), long WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
{
wxFAIL_MSG( "wxPostScriptDC::FloodFill not implemented." );
}
bool wxPostScriptDC::GetPixel (long WXUNUSED(x), long WXUNUSED(y), wxColour * WXUNUSED(col)) const
{
wxFAIL_MSG( "wxPostScriptDC::GetPixel not implemented." );
return FALSE;
}
void wxPostScriptDC::CrossHair (long WXUNUSED(x), long WXUNUSED(y))
{
wxFAIL_MSG( "wxPostScriptDC::CrossHair not implemented." );
}
void wxPostScriptDC::DrawLine (long x1, long y1, long x2, long y2)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_pen.GetStyle() == wxTRANSPARENT) return;
SetPen( m_pen );
*m_pstream << "newpath\n"
<< XLOG2DEV(x1) << " " << YLOG2DEV (y1) << " moveto\n"
<< XLOG2DEV(x2) << " " << YLOG2DEV (y2) << " lineto\n"
<< "stroke\n";
CalcBoundingBox( x1, y1 );
CalcBoundingBox( x2, y2 );
}
#define RAD2DEG 57.29577951308
void wxPostScriptDC::DrawArc (long x1, long y1, long x2, long y2, long xc, long yc)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
long dx = x1 - xc;
long dy = y1 - yc;
long radius = (long) sqrt(dx*dx+dy*dy);
double alpha1, alpha2;
if (x1 == x2 && y1 == y2)
{
alpha1 = 0.0;
alpha2 = 360.0;
} else if (radius == 0.0)
{
alpha1 = alpha2 = 0.0;
} else
{
alpha1 = (x1 - xc == 0) ?
(y1 - yc < 0) ? 90.0 : -90.0 :
-atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
alpha2 = (x2 - xc == 0) ?
(y2 - yc < 0) ? 90.0 : -90.0 :
-atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
}
while (alpha1 <= 0) alpha1 += 360;
while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
while (alpha2 > 360) alpha2 -= 360;
if (m_brush.GetStyle() != wxTRANSPARENT)
{
SetBrush( m_brush );
*m_pstream << "newpath\n"
<< XLOG2DEV(xc) << " "
<< YLOG2DEV(yc) << " "
<< XLOG2DEVREL(radius) << " "
<< YLOG2DEVREL(radius) << " "
<< alpha1 << " "
<< alpha2 << " ellipse\n"
<< XLOG2DEV(xc) << " "
<< YLOG2DEV(yc) << " lineto\n"
<< "closepath\n"
<< "fill\n";
}
if (m_pen.GetStyle() != wxTRANSPARENT)
{
SetPen( m_pen );
*m_pstream << "newpath\n"
<< XLOG2DEV(xc) << " "
<< YLOG2DEV(yc) << " "
<< XLOG2DEVREL(radius) << " "
<< YLOG2DEVREL(radius) << " "
<< alpha1 << " "
<< alpha2 << " ellipse\n"
<< "stroke\n";
}
CalcBoundingBox( xc-radius, yc-radius );
CalcBoundingBox( xc+radius, yc+radius );
}
void wxPostScriptDC::DrawEllipticArc(long x,long y,long w,long h,double sa,double ea)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
if (sa<0) sa+=360;
if (ea<0) ea+=360;
if (sa==ea)
{
DrawEllipse(x,y,w,h);
return;
}
if (m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush( m_brush );
*m_pstream << "newpath\n"
<< XLOG2DEV(x+w/2) << " " << YLOG2DEV(y+h/2) << " "
<< XLOG2DEVREL(w/2) << " " << YLOG2DEVREL(h/2) << " "
<< int(sa) <<" "<< int(ea) << " true ellipticarc\n";
CalcBoundingBox( x ,y );
CalcBoundingBox( x+w, y+h );
}
if (m_pen.GetStyle () != wxTRANSPARENT)
{
SetPen( m_pen );
*m_pstream << "newpath\n"
<< XLOG2DEV(x+w/2) << " " << YLOG2DEV(y+h/2) << " "
<< XLOG2DEVREL(w/2) << " " << XLOG2DEVREL(h/2) << " "
<< int(sa) <<" "<< int(ea) << " false ellipticarc\n";
CalcBoundingBox( x, y );
CalcBoundingBox( x+w, y+h );
}
}
void wxPostScriptDC::DrawPoint (long x, long y)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_pen.GetStyle() == wxTRANSPARENT) return;
SetPen (m_pen);
*m_pstream << "newpath\n"
<< XLOG2DEV(x) << " " << YLOG2DEV (y) << " moveto\n"
<< XLOG2DEV(x+1) << " " << YLOG2DEV (y) << " lineto\n"
<< "stroke\n";
CalcBoundingBox( x, y );
}
void wxPostScriptDC::DrawPolygon (int n, wxPoint points[], long xoffset, long yoffset, int WXUNUSED(fillStyle))
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (n <= 0) return;
if (m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush( m_brush );
*m_pstream << "newpath\n";
long xx = XLOG2DEV(points[0].x + xoffset);
long yy = YLOG2DEV(points[0].y + yoffset);
*m_pstream << xx << " " << yy << " moveto\n";
CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
for (int i = 1; i < n; i++)
{
xx = XLOG2DEV(points[i].x + xoffset);
yy = YLOG2DEV(points[i].y + yoffset);
*m_pstream << xx << " " << yy << " lineto\n";
CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
}
*m_pstream << "fill\n";
}
if (m_pen.GetStyle () != wxTRANSPARENT)
{
SetPen( m_pen );
*m_pstream << "newpath\n";
long xx = XLOG2DEV(points[0].x + xoffset);
long yy = YLOG2DEV(points[0].y + yoffset);
*m_pstream << xx << " " << yy << " moveto\n";
CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
for (int i = 1; i < n; i++)
{
xx = XLOG2DEV(points[i].x + xoffset);
yy = YLOG2DEV(points[i].y + yoffset);
*m_pstream << xx << " " << yy << " lineto\n";
CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
}
*m_pstream << "stroke\n";
}
}
void wxPostScriptDC::DrawLines (int n, wxPoint points[], long xoffset, long yoffset)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_pen.GetStyle() == wxTRANSPARENT) return;
if (n <= 0) return;
SetPen (m_pen);
for (int i=0; i<n ; ++i)
{
CalcBoundingBox( XLOG2DEV(points[i].x+xoffset), YLOG2DEV(points[i].y+yoffset));
}
*m_pstream << "newpath\n"
<< XLOG2DEV(points[0].x+xoffset) << " "
<< YLOG2DEV(points[0].y+yoffset) << " moveto\n";
for (int i = 1; i < n; i++)
{
*m_pstream << XLOG2DEV(points[i].x+xoffset) << " "
<< YLOG2DEV(points[i].y+yoffset) << " lineto\n";
}
*m_pstream << "stroke\n";
}
void wxPostScriptDC::DrawRectangle (long x, long y, long width, long height)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush( m_brush );
*m_pstream << "newpath\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y) << " moveto\n"
<< XLOG2DEV(x + width) << " " << YLOG2DEV(y) << " lineto\n"
<< XLOG2DEV(x + width) << " " << YLOG2DEV(y + height) << " lineto\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y + height) << " lineto\n"
<< "closepath\n"
<< "fill\n";
CalcBoundingBox( x, y );
CalcBoundingBox( x + width, y + height );
}
if (m_pen.GetStyle () != wxTRANSPARENT)
{
SetPen (m_pen);
*m_pstream << "newpath\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y) << " moveto\n"
<< XLOG2DEV(x + width) << " " << YLOG2DEV(y) << " lineto\n"
<< XLOG2DEV(x + width) << " " << YLOG2DEV(y + height) << " lineto\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y + height) << " lineto\n"
<< "closepath\n"
<< "stroke\n";
CalcBoundingBox( x, y );
CalcBoundingBox( x + width, y + height );
}
}
void wxPostScriptDC::DrawRoundedRectangle (long x, long y, long width, long height, double radius)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (radius < 0.0)
{
// Now, a negative radius is interpreted to mean
// 'the proportion of the smallest X or Y dimension'
double smallest = 0.0;
if (width < height)
smallest = width;
else
smallest = height;
radius = (-radius * smallest);
}
long rad = (long) radius;
if (m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush( m_brush );
// Draw rectangle anticlockwise
*m_pstream << "newpath\n"
<< XLOG2DEV(x + rad) << " " << YLOG2DEV(y + rad) << " " << XLOG2DEVREL(rad) << " 90 180 arc\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y + rad) << " moveto\n"
<< XLOG2DEV(x + rad) << " " << YLOG2DEV(y + height - rad) << " " << XLOG2DEVREL(rad) << " 180 270 arc\n"
<< XLOG2DEV(x + width - rad) << " " << YLOG2DEV(y + height) << " lineto\n"
<< XLOG2DEV(x + width - rad) << " " << YLOG2DEV(y + height - rad) << " " << XLOG2DEVREL(rad) << " 270 0 arc\n"
<< XLOG2DEV(x + width) << " " << YLOG2DEV(y + rad) << " lineto\n"
<< XLOG2DEV(x + width - rad) << " " << YLOG2DEV(y + rad) << " " << XLOG2DEVREL(rad) << " 0 90 arc\n"
<< XLOG2DEV(x + rad) << " " << YLOG2DEV(y) << " lineto\n"
<< "closepath\n"
<< "fill\n";
CalcBoundingBox( x, y );
CalcBoundingBox( x + width, y + height );
}
if (m_pen.GetStyle () != wxTRANSPARENT)
{
SetPen (m_pen);
// Draw rectangle anticlockwise
*m_pstream << "newpath\n"
<< XLOG2DEV(x + rad) << " " << YLOG2DEV(y + rad) << " " << XLOG2DEVREL(rad) << " 90 180 arc\n"
<< XLOG2DEV(x) << " " << YLOG2DEV(y + rad) << " moveto\n"
<< XLOG2DEV(x + rad) << " " << YLOG2DEV(y + height - rad) << " " << XLOG2DEVREL(rad) << " 180 270 arc\n"
<< XLOG2DEV(x + width - rad) << " " << YLOG2DEV(y + height) << " lineto\n"
<< XLOG2DEV(x + width - rad) << " " << YLOG2DEV(y + height - rad) << " " << XLOG2DEVREL(rad) << " 270 0 arc\n"
<< XLOG2DEV(x + width) << " " << YLOG2DEV(y + rad) << " lineto\n"
<< XLOG2DEV(x + width - rad) << " " << YLOG2DEV(y + rad) << " " << XLOG2DEVREL(rad) << " 0 90 arc\n"
<< XLOG2DEV(x + rad) << " " << YLOG2DEV(y) << " lineto\n"
<< "closepath\n"
<< "stroke\n";
CalcBoundingBox( x, y );
CalcBoundingBox( x + width, y + height );
}
}
void wxPostScriptDC::DrawEllipse (long x, long y, long width, long height)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush (m_brush);
*m_pstream << "newpath\n"
<< XLOG2DEV(x + width / 2) << " " << YLOG2DEV(y + height / 2) << " "
<< XLOG2DEV(width / 2) << " " << YLOG2DEVREL(height / 2) << " 0 360 ellipse\n"
<< "fill\n";
CalcBoundingBox( x - width, y - height );
CalcBoundingBox( x + width, y + height );
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
SetPen (m_pen);
*m_pstream << "newpath\n"
<< XLOG2DEV(x + width / 2) << " " << YLOG2DEV(y + height / 2) << " "
<< XLOG2DEV(width / 2) << " " << YLOG2DEVREL(height / 2) << " 0 360 ellipse\n"
<< "stroke\n";
CalcBoundingBox( x - width, y - height );
CalcBoundingBox( x + width, y + height );
}
}
void wxPostScriptDC::DrawIcon (const wxIcon& icon, long x, long y)
{
DrawBitmap( icon, x, y, TRUE );
}
void wxPostScriptDC::DrawBitmap( const wxBitmap& bitmap, long x, long y, bool WXUNUSED(useMask) )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (!bitmap.Ok()) return;
wxImage image( bitmap );
if (!image.Ok()) return;
int ww = XLOG2DEVREL(image.GetWidth());
int hh = YLOG2DEVREL(image.GetHeight());
image = image.Scale( ww, hh );
if (!image.Ok()) return;
int xx = XLOG2DEV(x);
int yy = YLOG2DEV(y + bitmap.GetHeight());
*m_pstream << "/origstate save def\n"
<< "20 dict begin\n"
<< "/pix " << ww << " string def\n"
<< "/grays " << ww << " string def\n"
<< "/npixels 0 def\n"
<< "/rgbindx 0 def\n"
<< xx << " " << yy << " translate\n"
<< ww << " " << hh << " scale\n"
<< ww << " " << hh << " 8\n"
<< "[" << ww << " 0 0 " << (-hh) << " 0 " << hh << "]\n"
<< "{currentfile pix readhexstring pop}\n"
<< "false 3 colorimage\n";
for (int j = 0; j < hh; j++)
{
for (int i = 0; i < ww; i++)
{
char buffer[5];
buffer[2] = 0;
wxDecToHex( image.GetRed(i,j), buffer );
*m_pstream << buffer;
wxDecToHex( image.GetGreen(i,j), buffer );
*m_pstream << buffer;
wxDecToHex( image.GetBlue(i,j), buffer );
*m_pstream << buffer;
}
*m_pstream << "\n";
}
*m_pstream << "end\n";
*m_pstream << "origstate restore\n";
}
void wxPostScriptDC::SetFont (const wxFont& font)
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (!font.Ok()) return;
m_font = font;
char *name = wxTheFontNameDirectory->GetPostScriptName( m_font.GetFamily(),
m_font.GetWeight(),
m_font.GetStyle() );
if (!name) name = "Times-Roman";
*m_pstream << "/" << name << " reencodeISO def\n"
<< "/" << name << " findfont\n"
<< YLOG2DEVREL(font.GetPointSize())
<< " scalefont setfont\n";
}
void wxPostScriptDC::SetPen( const wxPen& pen )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (!pen.Ok()) return;
int oldStyle = m_pen.GetStyle();
m_pen = pen;
*m_pstream << XLOG2DEVREL(m_pen.GetWidth()) << " setlinewidth\n";
/*
Line style - WRONG: 2nd arg is OFFSET
Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
operator correctly. You should look-up this in the Red Book: the 2nd parame-
ter is not number of values in the array of the first one, but an offset
into this description of the pattern. I mean a real *offset* not index
into array. I.e. If the command is [3 4] 1 setdash is used, then there
will be first black line *2* units long, then space 4 units, then the
pattern of *3* units black, 4 units space will be repeated.
*/
static const char *dotted = "[2 5] 2";
static const char *short_dashed = "[4 4] 2";
static const char *long_dashed = "[4 8] 2";
static const char *dotted_dashed = "[6 6 2 6] 4";
const char *psdash = (char *) NULL;
switch (m_pen.GetStyle ())
{
case wxDOT: psdash = dotted; break;
case wxSHORT_DASH: psdash = short_dashed; break;
case wxLONG_DASH: psdash = long_dashed; break;
case wxDOT_DASH: psdash = dotted_dashed; break;
case wxSOLID:
case wxTRANSPARENT:
default: psdash = "[] 0"; break;
}
if (oldStyle != m_pen.GetStyle())
{
*m_pstream << psdash << " setdash\n";
}
// Line colour
unsigned char red = m_pen.GetColour().Red();
unsigned char blue = m_pen.GetColour().Blue();
unsigned char green = m_pen.GetColour().Green();
if (!m_colour)
{
// Anything not white is black
if (!(red == (unsigned char) 255 && blue == (unsigned char) 255
&& green == (unsigned char) 255))
{
red = (unsigned char) 0;
green = (unsigned char) 0;
blue = (unsigned char) 0;
}
// setgray here ?
}
if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
{
long redPS = (long) (((int) red) / 255.0);
long bluePS = (long) (((int) blue) / 255.0);
long greenPS = (long) (((int) green) / 255.0);
*m_pstream << redPS << " " << greenPS << " " << bluePS << " setrgbcolor\n";
m_currentRed = red;
m_currentBlue = blue;
m_currentGreen = green;
}
}
void wxPostScriptDC::SetBrush( const wxBrush& brush )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (!brush.Ok()) return;
m_brush = brush;
// Brush colour
unsigned char red = m_brush.GetColour ().Red ();
unsigned char blue = m_brush.GetColour ().Blue ();
unsigned char green = m_brush.GetColour ().Green ();
if (!m_colour)
{
// Anything not black is white
if (!(red == (unsigned char) 0 && blue == (unsigned char) 0
&& green == (unsigned char) 0))
{
red = (unsigned char) 255;
green = (unsigned char) 255;
blue = (unsigned char) 255;
}
// setgray here ?
}
if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
{
long redPS = (long) (((int) red) / 255.0);
long bluePS = (long) (((int) blue) / 255.0);
long greenPS = (long) (((int) green) / 255.0);
*m_pstream << redPS << " " << greenPS << " " << bluePS << " setrgbcolor\n";
m_currentRed = red;
m_currentBlue = blue;
m_currentGreen = green;
}
}
void wxPostScriptDC::DrawText( const wxString& text, long x, long y, bool WXUNUSED(use16bit) )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
SetFont( m_font );
if (m_textForegroundColour.Ok ())
{
unsigned char red = m_textForegroundColour.Red ();
unsigned char blue = m_textForegroundColour.Blue ();
unsigned char green = m_textForegroundColour.Green ();
if (!m_colour)
{
// Anything not white is black
if (!(red == (unsigned char) 255 && blue == (unsigned char) 255
&& green == (unsigned char) 255))
{
red = (unsigned char) 0;
green = (unsigned char) 0;
blue = (unsigned char) 0;
}
}
// maybe setgray here ?
if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
{
long redPS = (long) (((int) red) / 255.0);
long bluePS = (long) (((int) blue) / 255.0);
long greenPS = (long) (((int) green) / 255.0);
*m_pstream << redPS << " " << greenPS << " " << bluePS << " setrgbcolor\n";
m_currentRed = red;
m_currentBlue = blue;
m_currentGreen = green;
}
}
int size = m_font.GetPointSize();
long by = y + (long)floor( float(size) * 2.0 / 3.0 ); // approximate baseline
*m_pstream << XLOG2DEV(x) << " " << YLOG2DEV(by) << " moveto\n";
*m_pstream << "(";
int len = strlen ((char *)(const char *)text);
int i;
for (i = 0; i < len; i++)
{
int c = (unsigned char) text[i];
if ( c == ')' || c == '(' || c == '\\')
{
*m_pstream << "\\" << (char) c;
}
else if ( c >= 128 )
{
// Cope with character codes > 127
char tmp[5];
sprintf(tmp, "\\%o", c);
*m_pstream << tmp;
}
else
*m_pstream << (char) c;
}
*m_pstream << ")" << " show\n";
if (m_font.GetUnderlined())
{
long uy = (long)(y + size - m_underlinePosition);
long w, h;
GetTextExtent(text, &w, &h);
*m_pstream << "gsave " << XLOG2DEV(x) << " " << YLOG2DEV(uy)
<< " moveto\n"
<< (long)m_underlineThickness << " setlinewidth "
<< XLOG2DEV(x + w) << " " << YLOG2DEV(uy)
<< " lineto stroke grestore\n";
}
CalcBoundingBox( x, y );
CalcBoundingBox( x + size * text.Length() * 2/3 , y );
}
void wxPostScriptDC::SetBackground (const wxBrush& brush)
{
m_backgroundBrush = brush;
}
void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
{
wxFAIL_MSG( "wxPostScriptDC::SetLogicalFunction not implemented." );
}
void wxPostScriptDC::DrawSpline( wxList *points )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
SetPen( m_pen );
double a, b, c, d, x1, y1, x2, y2, x3, y3;
wxPoint *p, *q;
wxNode *node = points->First();
p = (wxPoint *)node->Data();
x1 = p->x;
y1 = p->y;
node = node->Next();
p = (wxPoint *)node->Data();
c = p->x;
d = p->y;
x3 = a = (double)(x1 + c) / 2;
y3 = b = (double)(y1 + d) / 2;
*m_pstream << "newpath "
<< XLOG2DEV((long)x1) << " " << YLOG2DEV((long)y1) << " moveto "
<< XLOG2DEV((long)x3) << " " << YLOG2DEV((long)y3) << " lineto\n";
CalcBoundingBox( (long)x1, (long)y1 );
CalcBoundingBox( (long)x3, (long)y3 );
while ((node = node->Next()) != NULL)
{
q = (wxPoint *)node->Data();
x1 = x3;
y1 = y3;
x2 = c;
y2 = d;
c = q->x;
d = q->y;
x3 = (double)(x2 + c) / 2;
y3 = (double)(y2 + d) / 2;
*m_pstream << XLOG2DEV((long)x1) << " " << YLOG2DEV((long)y1) << " "
<< XLOG2DEV((long)x2) << " " << YLOG2DEV((long)y2) << " "
<< XLOG2DEV((long)x3) << " " << YLOG2DEV((long)y3) << " DrawSplineSection\n";
CalcBoundingBox( (long)x1, (long)y1 );
CalcBoundingBox( (long)x3, (long)y3 );
}
/*
At this point, (x2,y2) and (c,d) are the position of the
next-to-last and last point respectively, in the point list
*/
*m_pstream << XLOG2DEV((long)c) << " " << YLOG2DEV((long)d) << " lineto stroke\n";
}
long wxPostScriptDC::GetCharWidth ()
{
// Chris Breeze: reasonable approximation using wxMODERN/Courier
return (long) (GetCharHeight() * 72.0 / 120.0);
}
void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
m_signX = (xLeftRight ? 1 : -1);
m_signY = (yBottomUp ? 1 : -1);
ComputeScaleAndOrigin();
}
void wxPostScriptDC::SetDeviceOrigin( long x, long y )
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
int h = 0;
int w = 0;
GetSize( &w, &h );
wxDC::SetDeviceOrigin( x, h-y );
}
void wxPostScriptDC::GetSize(int* width, int* height) const
{
const char *paperType = wxThePrintSetupData->GetPaperName();
if (!paperType) paperType = _("A4 210 x 297 mm");
wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(_("A4 210 x 297 mm"));
if (paper)
{
if (width) *width = paper->widthPixels;
if (height) *height = paper->heightPixels;
}
else
{
if (width) *width = 595;
if (height) *height = 842;
}
}
bool wxPostScriptDC::StartDoc (const wxString& message)
{
wxCHECK_MSG( m_ok, FALSE, "invalid postscript dc" );
if (m_filename == "")
{
m_filename = wxGetTempFileName("ps");
wxThePrintSetupData->SetPrinterFile((char *)(const char *)m_filename);
m_ok = TRUE;
}
else
{
wxThePrintSetupData->SetPrinterFile((char *)(const char *)m_filename);
}
m_pstream = new ofstream (wxThePrintSetupData->GetPrinterFile());
if (!m_pstream || !m_pstream->good())
{
wxMessageBox (_("Cannot open file!"), _("Error"), wxOK);
m_ok = FALSE;
return FALSE;
}
m_ok = TRUE;
SetBrush( *wxBLACK_BRUSH );
SetPen( *wxBLACK_PEN );
SetBackground( *wxWHITE_BRUSH );
SetTextForeground( *wxBLACK );
// set origin according to paper size
SetDeviceOrigin( 0,0 );
wxPageNumber = 1;
m_pageNumber = 1;
m_title = message;
return TRUE;
}
void wxPostScriptDC::EndDoc ()
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
if (m_clipping)
{
m_clipping = FALSE;
*m_pstream << "grestore\n";
}
if (m_pstream)
{
delete m_pstream;
m_pstream = (ofstream *) NULL;
}
char *header_file = wxGetTempFileName("ps");
m_pstream = new ofstream( header_file );
*m_pstream << "%!PS-Adobe-2.0\n"; /* PostScript magic strings */
*m_pstream << "%%Title: " << (const char *) m_title << "\n";
*m_pstream << "%%Creator: " << wxTheApp->argv[0] << "\n";
*m_pstream << "%%CreationDate: " << wxNow() << "\n";
char userID[256];
if ( wxGetEmailAddress(userID, sizeof(userID)) )
{
*m_pstream << "%%For: " << (char *)userID;
char userName[245];
if (wxGetUserName(userName, sizeof(userName)))
*m_pstream << " (" << (char *)userName << ")";
*m_pstream << "\n";
}
else if ( wxGetUserName(userID, sizeof(userID)) )
{
*m_pstream << "%%For: " << (char *)userID << "\n";
}
// THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
long wx_printer_translate_x, wx_printer_translate_y;
double wx_printer_scale_x, wx_printer_scale_y;
wxThePrintSetupData->GetPrinterTranslation(&wx_printer_translate_x, &wx_printer_translate_y);
wxThePrintSetupData->GetPrinterScaling(&wx_printer_scale_x, &wx_printer_scale_y);
if (wxThePrintSetupData->GetPrinterOrientation() == PS_LANDSCAPE)
{
*m_pstream << "%%Orientation: Landscape\n";
}
else
{
*m_pstream << "%%Orientation: Portrait\n";
}
// Compute the bounding box. Note that it is in the default user
// coordinate system, thus we have to convert the values.
long llx = (long) ((XLOG2DEV(m_minX)+wx_printer_translate_x)*wx_printer_scale_x);
long lly = (long) ((YLOG2DEV(m_minY)+wx_printer_translate_y)*wx_printer_scale_y);
long urx = (long) ((XLOG2DEV(m_maxX)+wx_printer_translate_x)*wx_printer_scale_x);
long ury = (long) ((YLOG2DEV(m_maxY)+wx_printer_translate_y)*wx_printer_scale_y);
// If we're landscape, our sense of "x" and "y" is reversed.
if (wxThePrintSetupData->GetPrinterOrientation() == PS_LANDSCAPE)
{
long tmp;
tmp = llx; llx = lly; lly = tmp;
tmp = urx; urx = ury; ury = tmp;
// We need either the two lines that follow, or we need to subtract
// min_x from real_translate_y, which is commented out below.
llx = llx - (long)(m_minX*wx_printer_scale_y);
urx = urx - (long)(m_minX*wx_printer_scale_y);
}
// The Adobe specifications call for integers; we round as to make
// the bounding larger.
*m_pstream << "%%BoundingBox: "
<< floor((double)llx) << " " << floor((double)lly) << " "
<< ceil((double)urx) << " " << ceil((double)ury) << "\n";
*m_pstream << "%%Pages: " << (wxPageNumber - 1) << "\n";
*m_pstream << "%%EndComments\n\n";
// To check the correctness of the bounding box, postscript commands
// to draw a box corresponding to the bounding box are generated below.
// But since we typically don't want to print such a box, the postscript
// commands are generated within comments. These lines appear before any
// adjustment of scale, rotation, or translation, and hence are in the
// default user coordinates.
*m_pstream << "% newpath\n";
*m_pstream << "% " << llx << " " << lly << " moveto\n";
*m_pstream << "% " << urx << " " << lly << " lineto\n";
*m_pstream << "% " << urx << " " << ury << " lineto\n";
*m_pstream << "% " << llx << " " << ury << " lineto closepath stroke\n";
*m_pstream << "%%BeginProlog\n";
*m_pstream << wxPostScriptHeaderEllipse;
*m_pstream << wxPostScriptHeaderEllipticArc;
*m_pstream << wxPostScriptHeaderColourImage;
*m_pstream << wxPostScriptHeaderReencodeISO1;
*m_pstream << wxPostScriptHeaderReencodeISO2;
if (wxPostScriptHeaderSpline)
*m_pstream << wxPostScriptHeaderSpline;
*m_pstream << "%%EndProlog\n";
delete m_pstream;
m_pstream = (ofstream *) NULL;
char *tmp_file = wxGetTempFileName("ps");
// Paste header Before wx_printer_file
wxConcatFiles (header_file, wxThePrintSetupData->GetPrinterFile(), tmp_file);
wxRemoveFile (header_file);
wxRemoveFile (wxThePrintSetupData->GetPrinterFile());
wxRenameFile(tmp_file, wxThePrintSetupData->GetPrinterFile());
#if defined(__X__) || defined(__WXGTK__)
if (m_ok)
{
switch (wxThePrintSetupData->GetPrinterMode()) {
case PS_PREVIEW:
{
char *argv[3];
argv[0] = wxThePrintSetupData->GetPrintPreviewCommand();
argv[1] = wxThePrintSetupData->GetPrinterFile();
argv[2] = (char *) NULL;
wxExecute (argv, TRUE);
wxRemoveFile(wxThePrintSetupData->GetPrinterFile());
}
break;
case PS_PRINTER:
{
char *argv[4];
int argc = 0;
argv[argc++] = wxThePrintSetupData->GetPrinterCommand();
// !SM! If we simply assign to argv[1] here, if printer options
// are blank, we get an annoying and confusing message from lpr.
char * opts = wxThePrintSetupData->GetPrinterOptions();
if (opts && *opts)
argv[argc++] = opts;
argv[argc++] = wxThePrintSetupData->GetPrinterFile();
argv[argc++] = (char *) NULL;
wxExecute (argv, TRUE);
wxRemoveFile(wxThePrintSetupData->GetPrinterFile());
}
break;
case PS_FILE:
break;
}
}
#endif
}
void wxPostScriptDC::StartPage ()
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
*m_pstream << "%%Page: " << (wxPageNumber++) << "\n";
// *m_pstream << "matrix currentmatrix\n";
// Added by Chris Breeze
// Each page starts with an "initgraphics" which resets the
// transformation and so we need to reset the origin
// (and rotate the page for landscape printing)
/*
m_scaleFactor = 1.0;
m_logicalOriginX = 0;
m_logicalOriginY = 0;
*/
// Output scaling
long translate_x, translate_y;
double scale_x, scale_y;
wxThePrintSetupData->GetPrinterTranslation(&translate_x, &translate_y);
wxThePrintSetupData->GetPrinterScaling(&scale_x, &scale_y);
if (wxThePrintSetupData->GetPrinterOrientation() == PS_LANDSCAPE)
{
translate_y -= m_maxY;
*m_pstream << "90 rotate\n";
}
*m_pstream << scale_x << " " << scale_y << " scale\n";
*m_pstream << translate_x << " " << translate_y << " translate\n";
}
void wxPostScriptDC::EndPage ()
{
wxCHECK_RET( m_ok && m_pstream, "invalid postscript dc" );
*m_pstream << "showpage\n";
}
bool wxPostScriptDC::Blit( long WXUNUSED(xdest), long WXUNUSED(ydest),
long WXUNUSED(fwidth), long WXUNUSED(fheight),
wxDC *WXUNUSED(source),
long WXUNUSED(xsrc), long WXUNUSED(ysrc),
int WXUNUSED(rop), bool WXUNUSED(useMask) )
{
wxCHECK_MSG( m_ok && m_pstream, FALSE, "invalid postscript dc" );
wxFAIL_MSG( "wxPostScriptDC::Blit no yet implemented." );
return TRUE;
}
long wxPostScriptDC::GetCharHeight ()
{
if (m_font.Ok())
return m_font.GetPointSize();
else
return 12;
}
void wxPostScriptDC::GetTextExtent (const wxString& string, long *x, long *y,
long *descent, long *externalLeading, wxFont *theFont,
bool WXUNUSED(use16))
{
// if (!m_pstream) return;
wxFont *fontToUse = theFont;
if (!fontToUse) fontToUse = (wxFont*) &m_font;
#if !USE_AFM_FOR_POSTSCRIPT
// Provide a VERY rough estimate (avoid using it)
// Chris Breeze 5/11/97: produces accurate results for mono-spaced
// font such as Courier (aka wxMODERN)
int height = 12;
if (fontToUse)
{
height = fontToUse->GetPointSize();
}
*x = strlen (string) * height * 72 / 120;
*y = (long) (height * 1.32); // allow for descender
if (descent)
*descent = 0;
if (externalLeading)
*externalLeading = 0;
#else
// +++++ start of contributed code +++++
// ************************************************************
// method for calculating string widths in postscript:
// read in the AFM (adobe font metrics) file for the
// actual font, parse it and extract the character widths
// and also the descender. this may be improved, but for now
// it works well. the AFM file is only read in if the
// font is changed. this may be chached in the future.
// calls to GetTextExtent with the font unchanged are rather
// efficient!!!
//
// for each font and style used there is an AFM file necessary.
// currently i have only files for the roman font family.
// i try to get files for the other ones!
//
// CAVE: the size of the string is currently always calculated
// in 'points' (1/72 of an inch). this should later on be
// changed to depend on the mapping mode.
// CAVE: the path to the AFM files must be set before calling this
// function. this is usually done by a call like the following:
// wxSetAFMPath("d:\\wxw161\\afm\\");
//
// example:
//
// wxPostScriptDC dc(NULL, TRUE);
// if (dc.Ok()){
// wxSetAFMPath("d:\\wxw161\\afm\\");
// dc.StartDoc("Test");
// dc.StartPage();
// long w,h;
// dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
// dc.GetTextExtent("Hallo",&w,&h);
// dc.EndPage();
// dc.EndDoc();
// }
//
// by steve (stefan.hammes@urz.uni-heidelberg.de)
// created: 10.09.94
// updated: 14.05.95
assert(fontToUse && "void wxPostScriptDC::GetTextExtent: no font defined");
assert(x && "void wxPostScriptDC::GetTextExtent: x == NULL");
assert(y && "void wxPostScriptDC::GetTextExtent: y == NULL");
// these static vars are for storing the state between calls
static int lastFamily= INT_MIN;
static int lastSize= INT_MIN;
static int lastStyle= INT_MIN;
static int lastWeight= INT_MIN;
static int lastDescender = INT_MIN;
static int lastWidths[256]; // widths of the characters
// get actual parameters
const int Family = fontToUse->GetFamily();
const int Size = fontToUse->GetPointSize();
const int Style = fontToUse->GetStyle();
const int Weight = fontToUse->GetWeight();
// if we have another font, read the font-metrics
if(Family!=lastFamily||Size!=lastSize||Style!=lastStyle||Weight!=lastWeight){
// store actual values
lastFamily = Family;
lastSize = Size;
lastStyle = Style;
lastWeight = Weight;
// read in new font metrics **************************************
// 1. construct filename ******************************************
/* MATTHEW: [2] Use wxTheFontNameDirectory */
const char *name;
// Julian - we'll need to do this a different way now we've removed the
// font directory system. Must find Stefan's original code.
name = wxTheFontNameDirectory->GetAFMName(Family, Weight, Style);
if (!name)
name = "unknown";
// get the directory of the AFM files
char afmName[256];
afmName[0] = 0;
if (wxGetAFMPath())
strcpy(afmName,wxGetAFMPath());
// 2. open and process the file **********************************
// a short explanation of the AFM format:
// we have for each character a line, which gives its size
// e.g.:
//
// C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
//
// that means, we have a character with ascii code 63, and width
// (444/1000 * fontSize) points.
// the other data is ignored for now!
//
// when the font has changed, we read in the right AFM file and store the
// character widths in an array, which is processed below (see point 3.).
// new elements JC Sun Aug 25 23:21:44 MET DST 1996
strcat(afmName,name);
strcat(afmName,".afm");
FILE *afmFile = fopen(afmName,"r");
if(afmFile==NULL){
wxLogDebug("GetTextExtent: can't open AFM file '%s'\n",afmName);
wxLogDebug(" using approximate values\n");
int i;
for (i=0; i<256; i++) lastWidths[i] = 500; // an approximate value
lastDescender = -150; // dito.
}else{
int i;
// init the widths array
for(i=0; i<256; i++) lastWidths[i]= INT_MIN;
// some variables for holding parts of a line
char cString[10],semiString[10],WXString[10],descString[20];
char upString[30], utString[30], encString[50];
char line[256];
int ascii,cWidth;
// read in the file and parse it
while(fgets(line,sizeof(line),afmFile)!=NULL){
// A.) check for descender definition
if(strncmp(line,"Descender",9)==0){
if((sscanf(line,"%s%d",descString,&lastDescender)!=2)
|| (strcmp(descString,"Descender")!=0)) {
wxLogDebug("AFM-file '%s': line '%s' has error (bad descender)\n",
afmName,line);
}
}
// JC 1.) check for UnderlinePosition
else if(strncmp(line,"UnderlinePosition",17)==0){
if((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2)
|| (strcmp(upString,"UnderlinePosition")!=0)) {
wxLogDebug("AFM-file '%s': line '%s' has error (bad UnderlinePosition)\n",
afmName,line);
}
}
// JC 2.) check for UnderlineThickness
else if(strncmp(line,"UnderlineThickness",18)==0){
if((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2)
|| (strcmp(utString,"UnderlineThickness")!=0)) {
wxLogDebug("AFM-file '%s': line '%s' has error (bad UnderlineThickness)\n",
afmName,line);
}
}
// JC 3.) check for EncodingScheme
else if(strncmp(line,"EncodingScheme",14)==0){
if((sscanf(line,"%s%s",utString,encString)!=2)
|| (strcmp(utString,"EncodingScheme")!=0)) {
wxLogDebug("AFM-file '%s': line '%s' has error (bad EncodingScheme)\n",
afmName,line);
}
else if (strncmp(encString, "AdobeStandardEncoding", 21))
{
wxLogDebug("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)\n",
afmName,line, encString);
}
}
// B.) check for char-width
else if(strncmp(line,"C ",2)==0){
if(sscanf(line,"%s%d%s%s%d",
cString,&ascii,semiString,WXString,&cWidth)!=5){
wxLogDebug("AFM-file '%s': line '%s' has an error (bad character width)\n",afmName,line);
}
if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 ||
strcmp(WXString,"WX")!=0){
wxLogDebug("AFM-file '%s': line '%s' has a format error\n",afmName,line);
}
//printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth);
if(ascii>=0 && ascii<256){
lastWidths[ascii] = cWidth; // store width
}else{
/* MATTHEW: this happens a lot; don't print an error */
// wxLogDebug("AFM-file '%s': ASCII value %d out of range\n",afmName,ascii);
}
}
// C.) ignore other entries.
}
fclose(afmFile);
}
// hack to compute correct values for german 'Umlaute'
// the correct way would be to map the character names
// like 'adieresis' to corresp. positions of ISOEnc and read
// these values from AFM files, too. Maybe later ...
lastWidths[196] = lastWidths['A']; // <20>
lastWidths[228] = lastWidths['a']; // <20>
lastWidths[214] = lastWidths['O']; // <20>
lastWidths[246] = lastWidths['o']; // <20>
lastWidths[220] = lastWidths['U']; // <20>
lastWidths[252] = lastWidths['u']; // <20>
lastWidths[223] = lastWidths[251]; // <20>
}
// JC: calculate UnderlineThickness/UnderlinePosition
m_underlinePosition = m_underlinePosition * fontToUse->GetPointSize() / 1000.0f;
m_underlineThickness = m_underlineThickness * fontToUse->GetPointSize() / 1000.0f * m_scaleFactor;
// 3. now the font metrics are read in, calc size *******************
// this is done by adding the widths of the characters in the
// string. they are given in 1/1000 of the size!
long widthSum=0;
long height=Size; // by default
unsigned char *p;
for(p=(unsigned char *)(const char *)string; *p; p++){
if(lastWidths[*p]== INT_MIN){
wxLogDebug("GetTextExtent: undefined width for character '%c' (%d)\n",
*p,*p);
widthSum += (long)(lastWidths[' ']/1000.0F * Size); // assume space
}else{
widthSum += (long)((lastWidths[*p]/1000.0F)*Size);
}
}
// add descender to height (it is usually a negative value)
if(lastDescender!=INT_MIN){
height += (long)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
}
// return size values
*x = widthSum;
*y = height;
// return other parameters
if (descent){
if(lastDescender!=INT_MIN){
*descent = (long)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
}else{
*descent = 0;
}
}
// currently no idea how to calculate this!
// if (externalLeading) *externalLeading = 0;
if (externalLeading)
*externalLeading = 0;
// ----- end of contributed code -----
#endif
}
void wxPostScriptDC::GetSizeMM(long *width, long *height) const
{
const char *paperType = wxThePrintSetupData->GetPaperName();
if (!paperType) paperType = _("A4 210 x 297 mm");
wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(_("A4 210 x 297 mm"));
if (paper)
{
if (width) *width = paper->widthMM;
if (height) *height = paper->heightMM;
}
else
{
if (width) *width = 210;
if (height) *height = 297;
}
}
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