static void
handle_line_state_change (PangoRenderer *renderer,
PangoRenderPart part)
{
LineState *state = renderer->priv->line_state;
if (!state)
return;
if (part == PANGO_RENDER_PART_UNDERLINE &&
state->underline != PANGO_UNDERLINE_NONE)
{
PangoRectangle *rect = &state->underline_rect;
rect->width = state->logical_rect_end - rect->x;
draw_underline (renderer, state);
state->underline = renderer->underline;
rect->x = state->logical_rect_end;
rect->width = 0;
}
if (part == PANGO_RENDER_PART_STRIKETHROUGH &&
state->strikethrough)
{
PangoRectangle *rect = &state->strikethrough_rect;
rect->width = state->logical_rect_end - rect->x;
draw_strikethrough (renderer, state);
state->strikethrough = renderer->strikethrough;
rect->x = state->logical_rect_end;
rect->width = 0;
}
}
static void
add_underline (PangoRenderer *renderer,
LineState *state,
PangoFontMetrics *metrics,
int base_x,
int base_y,
PangoRectangle *ink_rect,
PangoRectangle *logical_rect)
{
PangoRectangle *current_rect = &state->underline_rect;
PangoRectangle new_rect;
int underline_thickness = pango_font_metrics_get_underline_thickness (metrics);
int underline_position = pango_font_metrics_get_underline_position (metrics);
new_rect.x = base_x + logical_rect->x;
new_rect.width = logical_rect->width;
new_rect.height = underline_thickness;
new_rect.y = base_y;
switch (renderer->underline)
{
case PANGO_UNDERLINE_NONE:
g_assert_not_reached ();
break;
case PANGO_UNDERLINE_SINGLE:
case PANGO_UNDERLINE_DOUBLE:
case PANGO_UNDERLINE_ERROR:
new_rect.y -= underline_position;
break;
case PANGO_UNDERLINE_LOW:
new_rect.y += ink_rect->y + ink_rect->height + underline_thickness;
break;
}
if (renderer->underline == state->underline &&
new_rect.y == current_rect->y &&
new_rect.height == current_rect->height)
{
current_rect->width = new_rect.x + new_rect.width - current_rect->x;
}
else
{
draw_underline (renderer, state);
*current_rect = new_rect;
state->underline = renderer->underline;
}
}
static void
print_pango_layout_line (GnomePrintContext *gpc, PangoLayoutLine *line)
{
GSList *tmp_list = line->runs;
PangoRectangle overall_rect;
PangoRectangle logical_rect;
PangoRectangle ink_rect;
gint x_off = 0;
gnome_print_gsave (gpc);
current_point_to_origin (gpc);
pango_layout_line_get_extents (line, NULL, &overall_rect);
while (tmp_list) {
ItemProperties properties;
PangoLayoutRun *run = tmp_list->data;
tmp_list = tmp_list->next;
get_item_properties (run->item, &properties);
if (properties.shape_logical_rect) {
x_off += properties.shape_logical_rect->width;
continue;
}
gnome_print_gsave (gpc);
translate (gpc, x_off, properties.rise);
gnome_print_moveto (gpc, 0, 0);
if (properties.uline == PANGO_UNDERLINE_NONE && !properties.strikethrough)
pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
NULL, &logical_rect);
else
pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
&ink_rect, &logical_rect);
if (properties.bg_color) {
gnome_print_gsave (gpc);
gnome_print_setrgbcolor (gpc,
(gdouble) properties.bg_color->red / 0xFFFF,
(gdouble) properties.bg_color->green / 0xFFFF,
(gdouble) properties.bg_color->blue / 0xFFFF);
rect_filled (gpc,
logical_rect.x, - overall_rect.y - overall_rect.height,
logical_rect.width, overall_rect.height);
gnome_print_grestore (gpc);
}
if (properties.fg_color) {
gnome_print_setrgbcolor (gpc,
(gdouble) properties.fg_color->red / 0xFFFF,
(gdouble) properties.fg_color->green / 0xFFFF,
(gdouble) properties.fg_color->blue / 0xFFFF);
}
gnome_print_pango_glyph_string (gpc, run->item->analysis.font, run->glyphs);
if (properties.uline != PANGO_UNDERLINE_NONE || properties.strikethrough) {
PangoFontMetrics *metrics = pango_font_get_metrics (run->item->analysis.font,
run->item->analysis.language);
if (properties.uline != PANGO_UNDERLINE_NONE)
draw_underline (gpc, metrics,
properties.uline,
ink_rect.x,
ink_rect.width,
ink_rect.y + ink_rect.height);
if (properties.strikethrough)
draw_strikethrough (gpc, metrics,
ink_rect.x,
ink_rect.width);
pango_font_metrics_unref (metrics);
}
gnome_print_grestore (gpc);
x_off += logical_rect.width;
}
gnome_print_grestore (gpc);
}