From bdaac0eba9817a4f00ead8ebb3bd5b4ea58c02e2 Mon Sep 17 00:00:00 2001 From: Robert Roebling Date: Sun, 25 Aug 2002 18:41:59 +0000 Subject: [PATCH] More work on Printing. It prints Kanji now using outlines and correctly prints wxHTML, but there are still problems with GetTextExtent() etc. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16784 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- src/generic/dcpsg.cpp | 152 ++++++++++-------------------------------- 1 file changed, 35 insertions(+), 117 deletions(-) diff --git a/src/generic/dcpsg.cpp b/src/generic/dcpsg.cpp index adefb2abc0..1e6d11c619 100644 --- a/src/generic/dcpsg.cpp +++ b/src/generic/dcpsg.cpp @@ -1099,8 +1099,6 @@ void wxPostScriptDC::SetBrush( const wxBrush& brush ) #include "wx/gtk/private.h" #include "wx/fontutil.h" #include "gtk/gtk.h" -//#include "gtk/gdk/gdkx.h" -//#include #include #include @@ -1113,16 +1111,14 @@ void wxPostScriptDC::SetBrush( const wxBrush& brush ) typedef struct _OutlineInfo OutlineInfo; struct _OutlineInfo { - FILE *OUT; - FT_Vector glyph_origin; - int dpi; + FILE *file; }; 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", + fprintf(outline_info->file, "%d %d moveto\n", (int)to->x , (int)to->y ); return 0; @@ -1132,7 +1128,7 @@ 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", + fprintf(outline_info->file, "%d %d lineto\n", (int)to->x , (int)to->y ); return 0; @@ -1143,7 +1139,7 @@ static int paps_conic_to( FT_Vector* control, void *user_data) { OutlineInfo *outline_info = (OutlineInfo*)user_data; - fprintf(outline_info->OUT, "%d %d %d %d conicto\n", + fprintf(outline_info->file, "%d %d %d %d conicto\n", (int)control->x , (int)control->y , (int)to->x , @@ -1157,7 +1153,7 @@ static int paps_cubic_to( FT_Vector* control1, void *user_data) { OutlineInfo *outline_info = (OutlineInfo*)user_data; - fprintf(outline_info->OUT, + fprintf(outline_info->file, "%d %d %d %d %d %d curveto\n", (int)control1->x , (int)control1->y , @@ -1168,18 +1164,17 @@ static int paps_cubic_to( FT_Vector* control1, return 0; } -void draw_bezier_outline(FILE *OUT, - int dpi, +void draw_bezier_outline(FILE *file, FT_Face face, FT_UInt glyph_index, - wxCoord pos_x, - wxCoord pos_y - ) + int pos_x, + int pos_y, + int scale_x, + int scale_y ) { - FT_Int load_flags = FT_LOAD_DEFAULT; + FT_Int load_flags = FT_LOAD_NO_BITMAP; FT_Glyph glyph; - /* Output outline */ FT_Outline_Funcs outlinefunc = { paps_move_to, @@ -1187,20 +1182,22 @@ void draw_bezier_outline(FILE *OUT, paps_conic_to, paps_cubic_to }; + OutlineInfo outline_info; + outline_info.file = file; - 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 1.0 72.0 div dup scale 0 0 0 setrgbcolor\n", pos_x, pos_y ); + fprintf(file, "gsave\n"); + fprintf(file, "%d %d translate\n", pos_x, pos_y ); + // FT2 scales outlines to 26.6 pixels so the code below + // should read 26600 instead of the 60000. + fprintf(file, "%d 60000 div %d 60000 div scale\n", scale_x, scale_y ); + fprintf(file, "0 0 0 setrgbcolor\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, "closepath fill grestore \n"); + fprintf(file, "closepath fill grestore \n"); FT_Done_Glyph (glyph); } @@ -1212,19 +1209,15 @@ 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(); - + dpi = 300; PangoContext *context = pango_ft2_get_context ( dpi, dpi ); - // What are these for? pango_context_set_language (context, pango_language_from_string ("en_US")); pango_context_set_base_dir (context, PANGO_DIRECTION_LTR ); - // Set the font pango_context_set_font_description (context, m_font.GetNativeFontInfo()->description ); - // Create layout PangoLayout *layout = pango_layout_new (context); #if wxUSE_UNICODE wxCharBuffer buffer = wxConvUTF8.cWC2MB( text ); @@ -1233,13 +1226,15 @@ void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y ) #endif pango_layout_set_text( layout, (const char*) buffer, strlen(buffer) ); -#if 1 - int xx = LogicalToDeviceX(x); - int yy = LogicalToDeviceY(y /*+ bitmap.GetHeight()*/ ); + PangoRectangle rect; + pango_layout_get_extents(layout, NULL, &rect); + + int xx = x * PANGO_SCALE; + int yy = y * PANGO_SCALE + (rect.height*2/3); + + int scale_x = LogicalToDeviceXRel( 1000 ); + int scale_y = LogicalToDeviceYRel( 1000 ); - xx *= PANGO_SCALE; - yy *= PANGO_SCALE; - // Loop over lines in layout int num_lines = pango_layout_get_line_count( layout ); for (int i = 0; i < num_lines; i++) @@ -1265,90 +1260,17 @@ void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y ) int pos_y = yy - geometry.y_offset; xx += geometry.width; - draw_bezier_outline( m_pstream, dpi, ft_face, + draw_bezier_outline( m_pstream, ft_face, (FT_UInt)(glyphs->glyphs[glyph_idx].glyph), - (wxCoord)(pos_x / PANGO_SCALE), (wxCoord)(pos_y / PANGO_SCALE) ); + LogicalToDeviceX( pos_x / PANGO_SCALE ), + LogicalToDeviceY( pos_y / PANGO_SCALE ), + scale_x, scale_y ); } runs_list = runs_list->next; } } -#else - // Find out extent for the bitmap - int height = 0; - int width = 0; - PangoRectangle logical_rect; - pango_layout_get_extents (layout, NULL, &logical_rect); - height = PANGO_PIXELS (logical_rect.height); - width = PANGO_PIXELS (logical_rect.width); - - // printf( "h %d w %d lh %d lw %d\n", height, width, logical_rect.height, logical_rect.width ); - - // Allocate FreeType 2 bitmap - int byte_width = (width + 7)/8 * 8; - FT_Bitmap bitmap; - guchar *buf = (guchar*) g_malloc (byte_width * height); - memset (buf, 0x00, byte_width * height); - bitmap.rows = height; - bitmap.width = byte_width; - bitmap.pitch = byte_width; - bitmap.buffer = buf; - bitmap.num_grays = 256; - bitmap.pixel_mode = ft_pixel_mode_grays; - - // Render bitmap - pango_ft2_render_layout (&bitmap, layout, 0, 0); - - // Invert bitmap to get black text on white background - for (int pix_idx = 0; pix_idx < width * height; pix_idx++) - buf[pix_idx] = 255-buf[pix_idx]; - - // Write PS output - wxCoord xx = LogicalToDeviceX(x); - wxCoord yy = LogicalToDeviceY(y /*+ bitmap.GetHeight()*/ ); - - fprintf(m_pstream, "gsave\n"); - fprintf(m_pstream, "%d %d translate\n", xx, yy); - fprintf(m_pstream, "/img_width %d def\n", bitmap.width); - fprintf(m_pstream, "/img_height %d def\n", bitmap.rows); - fprintf(m_pstream, "/picstr img_width 8 idiv string def\n"); - - fprintf(m_pstream, - " img_width 72 15 div mul\n" - " img_height 72 15 div mul scale\n" - " 0 setgray\n" - " img_width img_height\n" - " true\n" - " [img_width 0 0 img_height neg 0 img_height 0.67 mul]\n" - " { currentfile\n" - " picstr readhexstring pop }\n" - " imagemask" - ); - - - for (int b_idx= 0; b_idx < bitmap.width/8 * bitmap.rows; b_idx++) - { - guchar packed_b = 0; - int bit_idx; - - if (b_idx % (bitmap.width/8) == 0) - fprintf(m_pstream, "\n"); - - for (bit_idx = 0; bit_idx < 8; bit_idx++) - { - 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 g_object_unref( G_OBJECT( layout ) ); - #else wxCoord text_w, text_h, text_descent; @@ -2027,17 +1949,13 @@ void wxPostScriptDC::DoGetTextExtent(const wxString& string, #ifdef __WXGTK20__ int dpi = GetResolution(); - PangoContext *context = pango_ft2_get_context ( dpi, dpi ); - // What are these for? pango_context_set_language (context, pango_language_from_string ("en_US")); pango_context_set_base_dir (context, PANGO_DIRECTION_LTR ); - // Create layout PangoLayout *layout = pango_layout_new (context); - // Set Font PangoFontDescription *desc = fontToUse->GetNativeFontInfo()->description; pango_layout_set_font_description(layout, desc); #if wxUSE_UNICODE @@ -2053,8 +1971,8 @@ void wxPostScriptDC::DoGetTextExtent(const wxString& string, PangoRectangle rect; pango_layout_line_get_extents(line, NULL, &rect); - if (x) (*x) = (wxCoord) (rect.width / PANGO_SCALE / ms_PSScaleFactor); - if (y) (*y) = (wxCoord) (rect.height / PANGO_SCALE / ms_PSScaleFactor); + if (x) (*x) = (wxCoord) ( m_scaleX * rect.width / PANGO_SCALE ); + if (y) (*y) = (wxCoord) ( m_scaleY * rect.height / PANGO_SCALE ); if (descent) { // Do something about metrics here