From: Robert Roebling Date: Wed, 7 Aug 2002 17:35:26 +0000 (+0000) Subject: Added support for outlines printing under wxGTK. I still X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/c31c771b2d9fff41ff774bbc4515c36f3692dbe0 Added support for outlines printing under wxGTK. I still have to figure out how to do scaling right, the current values are guesswork. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16393 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- diff --git a/src/generic/dcpsg.cpp b/src/generic/dcpsg.cpp index 1a2a9c2696..14d7dfaf85 100644 --- a/src/generic/dcpsg.cpp +++ b/src/generic/dcpsg.cpp @@ -73,6 +73,25 @@ // start and end of document/page //----------------------------------------------------------------------------- +static const char *wxPostScriptHeaderConicTo = "\ +/conicto {\n\ + /to_y exch def\n\ + /to_x exch def\n\ + /conic_cntrl_y exch def\n\ + /conic_cntrl_x exch def\n\ + currentpoint\n\ + /p0_y exch def\n\ + /p0_x exch def\n\ + /p1_x p0_x conic_cntrl_x p0_x sub 2 3 div mul add def\n\ + /p1_y p0_y conic_cntrl_y p0_y sub 2 3 div mul add def\n\ + /p2_x p1_x to_x p0_x sub 1 3 div mul add def\n\ + /p2_y p1_y to_y p0_y sub 1 3 div mul add def\n\ + p1_x p1_y p2_x p2_y to_x to_y curveto\n\ +} bind def\n\ +/start_ol { gsave 1.0 72 div dup scale } bind def\n\ +/end_ol { closepath fill grestore } bind def\n\ +"; + static const char *wxPostScriptHeaderEllipse = "\ /ellipsedict 8 dict def\n\ ellipsedict /mtrx matrix put\n\ @@ -187,6 +206,7 @@ static const char *wxPostScriptHeaderColourImage = "\ } ifelse %% end of 'false' case\n\ "; +#ifndef __WXGTK20__ static char wxPostScriptHeaderReencodeISO1[] = "\n/reencodeISO {\n" "dup dup findfont dup length dict begin\n" @@ -227,6 +247,7 @@ static char wxPostScriptHeaderReencodeISO2[] = "/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n" "/yacute/thorn/ydieresis\n" "] def\n\n"; +#endif //------------------------------------------------------------------------------- // wxPostScriptDC @@ -939,6 +960,7 @@ void wxPostScriptDC::SetFont( const wxFont& font ) m_font = font; +#ifndef __WXGTK20__ int Style = m_font.GetStyle(); int Weight = m_font.GetWeight(); @@ -1023,6 +1045,7 @@ void wxPostScriptDC::SetFont( const wxFont& font ) for (int i = 0; i < 100; i++) if (buffer[i] == ',') buffer[i] = '.'; fprintf( m_pstream, buffer ); +#endif } void wxPostScriptDC::SetPen( const wxPen& pen ) @@ -1174,6 +1197,110 @@ void wxPostScriptDC::SetBrush( const wxBrush& brush ) #include "wx/fontutil.h" #include "gtk/gtk.h" #include +#include + +#ifndef FT_Outline_Decompose + FT_EXPORT( FT_Error ) FT_Outline_Decompose( + FT_Outline* outline, + const FT_Outline_Funcs* interface, + void* user ); +#endif + +typedef struct _OutlineInfo OutlineInfo; +struct _OutlineInfo { + FILE *OUT; + FT_Vector glyph_origin; + int dpi; +}; + +static int paps_move_to( FT_Vector* to, + void *user_data) +{ + OutlineInfo *outline_info = (OutlineInfo*)user_data; + fprintf(outline_info->OUT, "%d %d moveto\n", + (int)to->x , + (int)to->y ); + return 0; +} + +static int paps_line_to( FT_Vector* to, + void *user_data) +{ + OutlineInfo *outline_info = (OutlineInfo*)user_data; + fprintf(outline_info->OUT, "%d %d lineto\n", + (int)to->x , + (int)to->y ); + return 0; +} + +static int paps_conic_to( FT_Vector* control, + FT_Vector* to, + void *user_data) +{ + OutlineInfo *outline_info = (OutlineInfo*)user_data; + fprintf(outline_info->OUT, "%d %d %d %d conicto\n", + (int)control->x , + (int)control->y , + (int)to->x , + (int)to->y ); + return 0; +} + +static int paps_cubic_to( FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to, + void *user_data) +{ + OutlineInfo *outline_info = (OutlineInfo*)user_data; + fprintf(outline_info->OUT, + "%d %d %d %d %d %d curveto\n", + (int)control1->x , + (int)control1->y , + (int)control2->x , + (int)control2->y , + (int)to->x , + (int)to->y ); + return 0; +} + +static void draw_bezier_outline(FILE *OUT, + int dpi, + FT_Face face, + FT_UInt glyph_index, + wxCoord pos_x, + wxCoord pos_y + ) +{ + FT_Int load_flags = FT_LOAD_DEFAULT; + FT_Glyph glyph; + + /* Output outline */ + FT_Outline_Funcs outlinefunc = + { + paps_move_to, + paps_line_to, + paps_conic_to, + paps_cubic_to + }; + OutlineInfo outline_info; + + outline_info.glyph_origin.x = (FT_Pos) pos_x; + outline_info.glyph_origin.y = (FT_Pos) pos_y; + outline_info.dpi = dpi; + outline_info.OUT = OUT; + + fprintf(OUT, "gsave %d %d translate 0 0 0 setrgbcolor\n", pos_x, pos_y); + fprintf(OUT, "start_ol\n"); + + FT_Load_Glyph(face, glyph_index, load_flags); + FT_Get_Glyph (face->glyph, &glyph); + FT_Outline_Decompose (&(((FT_OutlineGlyph)glyph)->outline), + &outlinefunc, &outline_info); + fprintf(OUT, "end_ol grestore \n"); + + FT_Done_Glyph (glyph); +} + #endif @@ -1182,8 +1309,9 @@ void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y ) wxCHECK_RET( m_ok && m_pstream, wxT("invalid postscript dc") ); #ifdef __WXGTK20__ + int dpi = GetResolution() * 2; - PangoContext *context = pango_ft2_get_context (300, 300); + PangoContext *context = pango_ft2_get_context ( dpi, dpi ); // What are these for? pango_context_set_language (context, pango_language_from_string ("en_US")); @@ -1200,7 +1328,44 @@ void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y ) wxCharBuffer buffer = wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ); #endif pango_layout_set_text( layout, (const char*) buffer, strlen(buffer) ); - + +#if 1 + double xx = LogicalToDeviceX(x); + double yy = LogicalToDeviceY(y /*+ bitmap.GetHeight()*/ ); + + // Loop over lines in layout + int num_lines = pango_layout_get_line_count( layout ); + for (int i = 0; i < num_lines; i++) + { + PangoLayoutLine *line = pango_layout_get_line( layout, i ); + + // Loop over runs in line + GSList *runs_list = line->runs; + while (runs_list) + { + PangoLayoutRun *run = (PangoLayoutRun*) runs_list->data; + PangoItem *item = run->item; + PangoGlyphString *glyphs = run->glyphs; + PangoAnalysis *analysis = &item->analysis; + PangoFont *font = analysis->font; + FT_Face ft_face = pango_ft2_font_get_face(font); + + int num_glyphs = glyphs->num_glyphs; + for (int glyph_idx = 0; glyph_idx < num_glyphs; glyph_idx++) + { + PangoGlyphGeometry geometry = glyphs->glyphs[glyph_idx].geometry; + double pos_x = xx + 1.0 * geometry.x_offset / PANGO_SCALE; + double pos_y = yy - 1.0 * geometry.y_offset / PANGO_SCALE; + xx += 1.0 * geometry.width / PANGO_SCALE; + + draw_bezier_outline( m_pstream, dpi, ft_face, + (FT_UInt)(glyphs->glyphs[glyph_idx].glyph), + (wxCoord)pos_x, (wxCoord)pos_y ); + } + runs_list = runs_list->next; + } + } +#else // Find out extent for the bitmap int height = 0; int width = 0; @@ -1266,16 +1431,14 @@ void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y ) guchar this_bit = bitmap.buffer[b_idx * 8+bit_idx]<128; packed_b = (packed_b << 1) + this_bit; } - - fprintf(m_pstream, "%02x", packed_b); } fprintf(m_pstream, "\ngrestore\n" ); - // Free memory g_free( buf ); +#endif #else wxCoord text_w, text_h, text_descent; @@ -1698,11 +1861,14 @@ bool wxPostScriptDC::StartDoc( const wxString& message ) m_ok = TRUE; fprintf( m_pstream, "%%%%BeginProlog\n" ); + fprintf( m_pstream, wxPostScriptHeaderConicTo ); fprintf( m_pstream, wxPostScriptHeaderEllipse ); fprintf( m_pstream, wxPostScriptHeaderEllipticArc ); fprintf( m_pstream, wxPostScriptHeaderColourImage ); +#ifndef __WXGTK20__ fprintf( m_pstream, wxPostScriptHeaderReencodeISO1 ); fprintf( m_pstream, wxPostScriptHeaderReencodeISO2 ); +#endif if (wxPostScriptHeaderSpline) fprintf( m_pstream, wxPostScriptHeaderSpline ); fprintf( m_pstream, "%%%%EndProlog\n" );