diff options
Diffstat (limited to 'pango/pango-layout.c')
| -rw-r--r-- | pango/pango-layout.c | 51 |
1 files changed, 43 insertions, 8 deletions
diff --git a/pango/pango-layout.c b/pango/pango-layout.c index 50143387..5dc3a0ce 100644 --- a/pango/pango-layout.c +++ b/pango/pango-layout.c @@ -109,6 +109,8 @@ struct _PangoLayoutLinePrivate { PangoLayoutLine line; guint ref_count; + PangoGlyphString *last_tab_glyph; + PangoTabAlign last_tab_alignment; }; struct _PangoLayoutClass @@ -2495,11 +2497,8 @@ ensure_tab_width (PangoLayout *layout) } } -/* For now we only need the tab position, we assume - * all tabs are left-aligned. - */ static int -get_tab_pos (PangoLayout *layout, int index) +get_tab_pos (PangoLayout *layout, int index, PangoTabAlign *alignment) { gint n_tabs; gboolean in_pixels; @@ -2519,7 +2518,7 @@ get_tab_pos (PangoLayout *layout, int index) { gint pos = 0; - pango_tab_array_get_tab (layout->tabs, index, NULL, &pos); + pango_tab_array_get_tab (layout->tabs, index, alignment, &pos); if (in_pixels) return pos * PANGO_SCALE; @@ -2536,10 +2535,10 @@ get_tab_pos (PangoLayout *layout, int index) int next_to_last_pos = 0; int tab_width; - pango_tab_array_get_tab (layout->tabs, n_tabs - 1, NULL, &last_pos); + pango_tab_array_get_tab (layout->tabs, n_tabs - 1, alignment, &last_pos); if (n_tabs > 1) - pango_tab_array_get_tab (layout->tabs, n_tabs - 2, NULL, &next_to_last_pos); + pango_tab_array_get_tab (layout->tabs, n_tabs - 2, alignment, &next_to_last_pos); else next_to_last_pos = 0; @@ -2597,6 +2596,8 @@ shape_tab (PangoLayoutLine *line, { int i; + PangoTabAlign tab_alignment; + int current_width = line_width (line); pango_glyph_string_set_size (glyphs, 1); @@ -2610,13 +2611,16 @@ shape_tab (PangoLayoutLine *line, for (i=0;;i++) { - int tab_pos = get_tab_pos (line->layout, i); + int tab_pos = get_tab_pos (line->layout, i, &tab_alignment); if (tab_pos > current_width) { glyphs->glyphs[0].geometry.width = tab_pos - current_width; break; } } + PangoLayoutLinePrivate *private = (PangoLayoutLinePrivate *)line; + private->last_tab_glyph = glyphs; + private->last_tab_alignment = tab_alignment; } static inline gboolean @@ -2689,6 +2693,16 @@ struct _ParaBreakState * to the remaining portion of the first item */ }; +static int +glyphstring_width (PangoGlyphString* glyphs) +{ + int i; + int width = 0; + for (i=0; i < glyphs->num_glyphs; i++) + width += glyphs->glyphs[i].geometry.width; + return width; +} + static PangoGlyphString * shape_run (PangoLayoutLine *line, ParaBreakState *state, @@ -2701,6 +2715,10 @@ shape_run (PangoLayoutLine *line, shape_tab (line, glyphs); else { + PangoLayoutLinePrivate *private = (PangoLayoutLinePrivate *)line; + + g_return_val_if_fail (line != NULL, glyphs); + if (state->properties.shape_set) imposed_shape (layout->text + item->offset, item->num_chars, state->properties.shape_ink_rect, state->properties.shape_logical_rect, @@ -2708,6 +2726,21 @@ shape_run (PangoLayoutLine *line, else pango_shape (layout->text + item->offset, item->length, &item->analysis, glyphs); + if (private->last_tab_glyph != NULL) + { + if (private->last_tab_glyph->num_glyphs > 0) + { + int w = private->last_tab_glyph->glyphs[0].geometry.width; + if (private->last_tab_alignment == PANGO_TAB_RIGHT) + w -= glyphstring_width (glyphs); + else if (private->last_tab_alignment == PANGO_TAB_CENTER) + w -= glyphstring_width (glyphs) / 2; + + if (w < 0) w = 0; + private->last_tab_glyph->glyphs[0].geometry.width = w; + } + } + if (state->properties.letter_spacing) { PangoGlyphItem glyph_item; @@ -4034,6 +4067,8 @@ pango_layout_line_new (PangoLayout *layout) private->line.layout = layout; private->line.runs = 0; private->line.length = 0; + private->last_tab_glyph = NULL; + private->last_tab_alignment = PANGO_TAB_LEFT; /* Note that we leave start_index, resolved_dir, and is_paragraph_start * uninitialized */ |