diff options
Diffstat (limited to 'src/entry_backend/pango.c')
| -rw-r--r-- | src/entry_backend/pango.c | 231 |
1 files changed, 149 insertions, 82 deletions
diff --git a/src/entry_backend/pango.c b/src/entry_backend/pango.c index 7a63d1a..82c93ee 100644 --- a/src/entry_backend/pango.c +++ b/src/entry_backend/pango.c @@ -13,6 +13,70 @@ #undef MIN #define MIN(a, b) ((a) < (b) ? (a) : (b)) +static void rounded_rectangle(cairo_t *cr, uint32_t width, uint32_t height, uint32_t r) +{ + cairo_new_path(cr); + + /* Top-left */ + cairo_arc(cr, r, r, r, -M_PI, -M_PI_2); + + /* Top-right */ + cairo_arc(cr, width - r, r, r, -M_PI_2, 0); + + /* Bottom-right */ + cairo_arc(cr, width - r, height - r, r, 0, M_PI_2); + + /* Bottom-left */ + cairo_arc(cr, r, height - r, r, M_PI_2, M_PI); + + cairo_close_path(cr); +} + +static void render_text_themed( + cairo_t *cr, + PangoLayout *layout, + const char *text, + const struct text_theme *theme, + PangoRectangle *ink_rect, + PangoRectangle *logical_rect) +{ + struct color color = theme->foreground_color; + cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); + + pango_layout_set_text(layout, text, -1); + pango_cairo_update_layout(cr, layout); + pango_cairo_show_layout(cr, layout); + + pango_layout_get_pixel_extents(layout, ink_rect, logical_rect); + + if (theme->background_color.a == 0) { + /* No background to draw, we're done. */ + return; + } + + struct directional padding = theme->padding; + + cairo_save(cr); + color = theme->background_color; + cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); + cairo_translate( + cr, + floor(-padding.left + ink_rect->x), + -padding.top); + rounded_rectangle( + cr, + ceil(ink_rect->width + padding.left + padding.right), + ceil(logical_rect->height + padding.top + padding.bottom), + theme->background_corner_radius + ); + cairo_fill(cr); + cairo_restore(cr); + + color = theme->foreground_color; + cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); + pango_cairo_show_layout(cr, layout); +} + void entry_backend_pango_init(struct entry *entry, uint32_t *width, uint32_t *height) { cairo_t *cr = entry->cairo[0].cr; @@ -85,44 +149,34 @@ void entry_backend_pango_update(struct entry *entry) cairo_save(cr); struct color color = entry->foreground_color; - cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); /* Render the prompt */ - pango_layout_set_text(layout, entry->prompt_text, -1); - pango_cairo_update_layout(cr, layout); - pango_cairo_show_layout(cr, layout); - PangoRectangle ink_rect; PangoRectangle logical_rect; - pango_layout_get_pixel_extents(entry->pango.layout, &ink_rect, &logical_rect); - cairo_translate(cr, logical_rect.width + logical_rect.x, 0); + render_text_themed(cr, layout, entry->prompt_text, &entry->prompt_theme, &ink_rect, &logical_rect); + cairo_translate(cr, logical_rect.width + logical_rect.x, 0); cairo_translate(cr, entry->prompt_padding, 0); /* Render the entry text */ if (entry->input_utf8_length == 0) { - color = entry->placeholder_color; - cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); - pango_layout_set_text(layout, entry->placeholder_text, -1); + render_text_themed(cr, layout, entry->placeholder_text, &entry->placeholder_theme, &ink_rect, &logical_rect); } else if (entry->hide_input) { - /* - * Pango needs to be passed the whole text at once, so we need - * to manually replicate the replacement character in a buffer. - */ - static char buf[sizeof(entry->input_utf8)]; - uint32_t char_len = entry->hidden_character_utf8_length; - for (size_t i = 0; i < entry->input_utf32_length; i++) { - for (size_t j = 0; j < char_len; j++) { - buf[i * char_len + j] = entry->hidden_character_utf8[j]; + size_t nchars = entry->input_utf32_length; + size_t char_size = entry->hidden_character_utf8_length; + char *buf = xmalloc(1 + nchars * char_size); + for (size_t i = 0; i < nchars; i++) { + for (size_t j = 0; j < char_size; j++) { + buf[i * char_size + j] = entry->hidden_character_utf8[j]; } } - pango_layout_set_text(layout, buf, char_len * entry->input_utf32_length); + buf[char_size * nchars] = '\0'; + + render_text_themed(cr, layout, buf, &entry->placeholder_theme, &ink_rect, &logical_rect); + free(buf); } else { - pango_layout_set_text(layout, entry->input_utf8, -1); + render_text_themed(cr, layout, entry->input_utf8, &entry->input_theme, &ink_rect, &logical_rect); } - pango_cairo_update_layout(cr, layout); - pango_cairo_show_layout(cr, layout); - pango_layout_get_pixel_extents(entry->pango.layout, &ink_rect, &logical_rect); logical_rect.width = MAX(logical_rect.width, (int)entry->input_width); color = entry->foreground_color; @@ -164,25 +218,29 @@ void entry_backend_pango_update(struct entry *entry) } else { str = ""; } - if (i != entry->selection) { - pango_layout_set_text(layout, str, -1); - pango_cairo_update_layout(cr, layout); + if (i != entry->selection || (entry->selection_highlight_color.a == 0)) { + const struct text_theme *theme; + if (i == entry->selection) { + theme = &entry->selection_theme; + } else if (index % 2) { + theme = &entry->alternate_result_theme;; + } else { + theme = &entry->default_result_theme;; + } if (entry->num_results > 0) { - pango_cairo_show_layout(cr, layout); - pango_layout_get_pixel_extents(entry->pango.layout, &ink_rect, &logical_rect); + render_text_themed(cr, layout, str, theme, &ink_rect, &logical_rect); } else if (!entry->horizontal) { if (size_overflows(entry, 0, logical_rect.height)) { entry->num_results_drawn = i; break; } else { - pango_cairo_show_layout(cr, layout); - pango_layout_get_pixel_extents(entry->pango.layout, &ink_rect, &logical_rect); + render_text_themed(cr, layout, str, theme, &ink_rect, &logical_rect); } } else { cairo_push_group(cr); - pango_cairo_show_layout(cr, layout); - pango_layout_get_pixel_extents(entry->pango.layout, &ink_rect, &logical_rect); + render_text_themed(cr, layout, str, theme, &ink_rect, &logical_rect); + cairo_pattern_t *group = cairo_pop_group(cr); if (size_overflows(entry, logical_rect.width, 0)) { entry->num_results_drawn = i; @@ -213,68 +271,77 @@ void entry_backend_pango_update(struct entry *entry) } } - cairo_push_group(cr); - color = entry->selection_foreground_color; - cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); - - pango_layout_set_text(layout, str, prematch_len); - pango_cairo_update_layout(cr, layout); - pango_cairo_show_layout(cr, layout); - pango_layout_get_pixel_extents(entry->pango.layout, &ink_subrect, &logical_subrect); - ink_rect = ink_subrect; - logical_rect = logical_subrect; - - if (prematch_len != -1) { - cairo_translate(cr, logical_subrect.x + logical_subrect.width, 0); - color = entry->selection_highlight_color; + for (int pass = 0; pass < 2; pass++) { + cairo_save(cr); + color = entry->selection_theme.foreground_color; cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); - pango_layout_set_text(layout, &str[prematch_len], match_len); + + pango_layout_set_text(layout, str, prematch_len); pango_cairo_update_layout(cr, layout); pango_cairo_show_layout(cr, layout); pango_layout_get_pixel_extents(entry->pango.layout, &ink_subrect, &logical_subrect); - if (prematch_len == 0) { - ink_rect = ink_subrect; - logical_rect = logical_subrect; - } else { + ink_rect = ink_subrect; + logical_rect = logical_subrect; + + if (prematch_len != -1) { + cairo_translate(cr, logical_subrect.x + logical_subrect.width, 0); + color = entry->selection_highlight_color; + cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); + pango_layout_set_text(layout, &str[prematch_len], match_len); + pango_cairo_update_layout(cr, layout); + pango_cairo_show_layout(cr, layout); + pango_layout_get_pixel_extents(entry->pango.layout, &ink_subrect, &logical_subrect); + if (prematch_len == 0) { + ink_rect = ink_subrect; + logical_rect = logical_subrect; + } else { + ink_rect.width = logical_rect.width + - ink_rect.x + + ink_subrect.x + + ink_subrect.width; + logical_rect.width += logical_subrect.x + logical_subrect.width; + } + } + + if (postmatch_len != -1) { + cairo_translate(cr, logical_subrect.x + logical_subrect.width, 0); + color = entry->selection_theme.foreground_color; + cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); + pango_layout_set_text(layout, &str[prematch_len + match_len], -1); + pango_cairo_update_layout(cr, layout); + pango_cairo_show_layout(cr, layout); + pango_layout_get_pixel_extents(entry->pango.layout, &ink_subrect, &logical_subrect); ink_rect.width = logical_rect.width - ink_rect.x + ink_subrect.x + ink_subrect.width; logical_rect.width += logical_subrect.x + logical_subrect.width; - } - } - if (postmatch_len != -1) { - cairo_translate(cr, logical_subrect.x + logical_subrect.width, 0); - color = entry->selection_foreground_color; - cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); - pango_layout_set_text(layout, &str[prematch_len + match_len], -1); - pango_cairo_update_layout(cr, layout); - pango_cairo_show_layout(cr, layout); - pango_layout_get_pixel_extents(entry->pango.layout, &ink_subrect, &logical_subrect); - ink_rect.width = logical_rect.width - - ink_rect.x - + ink_subrect.x - + ink_subrect.width; - logical_rect.width += logical_subrect.x + logical_subrect.width; + } - } + cairo_restore(cr); - cairo_pop_group_to_source(cr); - cairo_save(cr); - color = entry->selection_background_color; - cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); - int32_t pad = entry->selection_background_padding; - if (pad < 0) { - pad = entry->clip_width; + if (entry->selection_theme.background_color.a == 0) { + break; + } else if (pass == 0) { + struct directional padding = entry->selection_theme.padding; + cairo_save(cr); + color = entry->selection_theme.background_color; + cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); + cairo_translate( + cr, + floor(-padding.left + ink_rect.x), + -padding.top); + rounded_rectangle( + cr, + ceil(ink_rect.width + padding.left + padding.right), + ceil(logical_rect.height + padding.top + padding.bottom), + entry->selection_theme.background_corner_radius + ); + cairo_fill(cr); + cairo_restore(cr); + } } - cairo_translate(cr, floor(-pad + ink_rect.x), 0); - cairo_rectangle(cr, 0, 0, ceil(ink_rect.width + pad * 2), ceil(logical_rect.height)); - cairo_fill(cr); - cairo_restore(cr); - cairo_paint(cr); - color = entry->foreground_color; - cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a); } } entry->num_results_drawn = i; |