/* draw_contour() draws all of the contours that make up a line.
to access the ft font information out of the pango font info.
*/
static void draw_contour(paps_private_t *paps,
GString *layout_str,
PangoLayoutLine *pango_line,
double line_start_pos_x,
double line_start_pos_y
)
{
GSList *runs_list;
double scale = 72.0 / PANGO_SCALE / PAPS_DPI;
g_string_append(layout_str, "(");
/* Loop over the runs and output font info */
runs_list = pango_line->runs;
double x_pos = line_start_pos_x;
while(runs_list)
{
PangoLayoutRun *run = 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;
int glyph_idx;
for (glyph_idx=0; glyph_idx<num_glyphs; glyph_idx++)
{
PangoGlyphGeometry geometry = glyphs->glyphs[glyph_idx].geometry;
double glyph_pos_x, glyph_pos_y;
glyph_pos_x = x_pos + 1.0*geometry.x_offset * scale;
glyph_pos_y = line_start_pos_y - 1.0*geometry.y_offset * scale;
x_pos += geometry.width * scale * paps->scale_x;
if (glyphs->glyphs[glyph_idx].glyph == PANGO_GLYPH_EMPTY)
continue;
draw_bezier_outline(paps,
layout_str,
ft_face,
&glyphs->glyphs[glyph_idx],
glyph_pos_x,
glyph_pos_y);
}
runs_list = runs_list->next;
}
g_string_append(layout_str, ")paps_exec\n");
}
/* postscript_draw_contour() dumps out the information of a line. It shows how
to access the ft font information out of the pango font info.
*/
void postscript_draw_contour(DiaPsRenderer *renderer,
int dpi_x,
PangoLayoutLine *pango_line,
double line_start_pos_x,
double line_start_pos_y)
{
GSList *runs_list;
int num_runs = 0;
/* First calculate number of runs in text */
runs_list = pango_line->runs;
while(runs_list)
{
num_runs++;
runs_list = runs_list->next;
}
/* Loop over the runs and output font info */
runs_list = pango_line->runs;
while(runs_list)
{
PangoLayoutRun *run = runs_list->data;
PangoItem *item = run->item;
PangoGlyphString *glyphs = run->glyphs;
PangoAnalysis *analysis = &item->analysis;
PangoFont *font = analysis->font;
FT_Face ft_face;
int bidi_level;
int num_glyphs;
int glyph_idx;
if (font == NULL) {
fprintf(stderr, "No font found\n");
continue;
}
ft_face = pango_ft2_font_get_face(font);
if (ft_face == NULL) {
fprintf(stderr, "Failed to get face for font %s\n",
pango_font_description_to_string(pango_font_describe(font)));
continue;
}
/*
printf("Got face %s (PS %s) for font %s (diafont %s)\n",
ft_face->family_name,
FT_Get_Postscript_Name(ft_face),
pango_font_description_to_string(pango_font_describe(font)),
dia_font_get_family(renderer->current_font));
*/
bidi_level = item->analysis.level;
num_glyphs = glyphs->num_glyphs;
for (glyph_idx=0; glyph_idx<num_glyphs; glyph_idx++)
{
PangoGlyphGeometry geometry = glyphs->glyphs[glyph_idx].geometry;
double pos_x;
double pos_y;
double scale = 2.54/PANGO_SCALE/dpi_x;/*72.0 / PANGO_SCALE / dpi_x;*/
pos_x = line_start_pos_x + 1.0* geometry.x_offset * scale;
pos_y = line_start_pos_y - 1.0*geometry.y_offset * scale;
line_start_pos_x += 1.0 * geometry.width * scale;
/*
printf("Drawing glyph %d: index %d at %f, %f (w %d)\n", glyph_idx,
glyphs->glyphs[glyph_idx].glyph, pos_x, pos_y,
geometry.width);
*/
draw_bezier_outline(renderer,
dpi_x,
ft_face,
(FT_UInt)(glyphs->glyphs[glyph_idx].glyph),
pos_x, pos_y
);
}
runs_list = runs_list->next;
}
}
