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xtext: Get proper text width with attributes

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This commit is contained in:
TingPing 2013-10-26 08:51:50 -04:00
parent d1de138cb1
commit 7cf9ea83cb
1 changed files with 34 additions and 29 deletions
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63
src/fe-gtk/xtext.c
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@ -162,6 +162,37 @@ gtk_xtext_text_width_8bit (GtkXText *xtext, unsigned char *str, int len)
/* ============ PANGO BACKEND ============ */
/* ======================================= */
static void
xtext_layout_set_text (GtkXText *xtext, char *str, int len)
{
PangoAttrList *attr_list;
PangoAttribute *attr;
attr_list = pango_attr_list_new ();
if (xtext->italics)
{
attr = pango_attr_style_new (PANGO_STYLE_ITALIC);
attr->start_index = PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING;
attr->end_index = PANGO_ATTR_INDEX_TO_TEXT_END;
pango_attr_list_insert (attr_list, attr);
}
if (xtext->bold)
{
attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
attr->start_index = PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING;
attr->end_index = PANGO_ATTR_INDEX_TO_TEXT_END;
pango_attr_list_insert (attr_list, attr);
}
pango_layout_set_attributes (xtext->layout, attr_list);
pango_layout_set_text (xtext->layout, str, len);
pango_attr_list_unref (attr_list);
}
static void
backend_font_close (GtkXText *xtext)
{
@ -238,13 +269,11 @@ backend_get_text_width (GtkXText *xtext, guchar *str, int len, int is_mb)
{
int width;
if (!is_mb)
return gtk_xtext_text_width_8bit (xtext, str, len);
if (*str == 0)
return 0;
pango_layout_set_text (xtext->layout, str, len);
/* set text w/ attributes for proper width */
xtext_layout_set_text (xtext, str, len);
pango_layout_get_pixel_size (xtext->layout, &width, NULL);
return width;
@ -303,30 +332,8 @@ backend_draw_text (GtkXText *xtext, int dofill, GdkGC *gc, int x, int y,
GdkGCValues val;
GdkColor col;
PangoLayoutLine *line;
PangoAttrList *attr_list;
PangoAttribute *attr;
attr_list = pango_attr_list_new ();
if (xtext->italics)
{
attr = pango_attr_style_new (PANGO_STYLE_ITALIC);
attr->start_index = PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING;
attr->end_index = PANGO_ATTR_INDEX_TO_TEXT_END;
pango_attr_list_insert (attr_list, attr);
}
if (xtext->bold)
{
attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
attr->start_index = PANGO_ATTR_INDEX_FROM_TEXT_BEGINNING;
attr->end_index = PANGO_ATTR_INDEX_TO_TEXT_END;
pango_attr_list_insert (attr_list, attr);
}
pango_layout_set_attributes (xtext->layout, attr_list);
pango_layout_set_text (xtext->layout, str, len);
xtext_layout_set_text (xtext, str, len);
if (dofill)
{
@ -342,8 +349,6 @@ backend_draw_text (GtkXText *xtext, int dofill, GdkGC *gc, int x, int y,
line = pango_layout_get_lines (xtext->layout)->data;
xtext_draw_layout_line (xtext->draw_buf, gc, x, y, line);
pango_attr_list_unref (attr_list);
}
static void