Merge branch 'next' of zekjur:/git/i3 into next
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commit
1e095ece84
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@ -152,4 +152,12 @@ void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window);
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*/
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void cached_pixmap_prepare(xcb_connection_t *conn, struct Cached_Pixmap *pixmap);
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/**
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* Calculate the width of the given text (16-bit characters, UCS) with given
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* real length (amount of glyphs) using the given font.
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*
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*/
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int predict_text_width(xcb_connection_t *conn, char *font_pattern, char *text,
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int length);
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#endif
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66
src/xcb.c
66
src/xcb.c
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@ -293,3 +293,69 @@ void cached_pixmap_prepare(xcb_connection_t *conn, struct Cached_Pixmap *pixmap)
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xcb_create_gc(conn, pixmap->gc, pixmap->id, 0, 0);
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}
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/*
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* Returns the xcb_charinfo_t for the given character (specified by row and
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* column in the lookup table) if existing, otherwise the minimum bounds.
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*
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*/
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static xcb_charinfo_t *get_charinfo(int col, int row, xcb_query_font_reply_t *font_info,
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xcb_charinfo_t *table, bool dont_fallback) {
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xcb_charinfo_t *result;
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/* Bounds checking */
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if (row < font_info->min_byte1 || row > font_info->max_byte1 ||
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col < font_info->min_char_or_byte2 || col > font_info->max_char_or_byte2)
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return NULL;
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/* If we don’t have a table to lookup the infos per character, return the
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* minimum bounds */
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if (table == NULL)
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return &font_info->min_bounds;
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result = &table[((row - font_info->min_byte1) *
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(font_info->max_char_or_byte2 - font_info->min_char_or_byte2 + 1)) +
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(col - font_info->min_char_or_byte2)];
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/* If the character has an entry in the table, return it */
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if (result->character_width != 0 ||
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(result->right_side_bearing |
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result->left_side_bearing |
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result->ascent |
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result->descent) != 0)
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return result;
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/* Otherwise, get the default character and return its charinfo */
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if (dont_fallback)
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return NULL;
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return get_charinfo((font_info->default_char >> 8),
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(font_info->default_char & 0xFF),
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font_info,
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table,
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true);
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}
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/*
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* Calculate the width of the given text (16-bit characters, UCS) with given
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* real length (amount of glyphs) using the given font.
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*
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*/
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int predict_text_width(xcb_connection_t *conn, char *font_pattern, char *text, int length) {
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xcb_query_font_reply_t *font_info;
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xcb_charinfo_t *table;
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int i, width;
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i3Font *font = load_font(conn, font_pattern);
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font_info = xcb_query_font_reply(conn, xcb_query_font_unchecked(conn, font->id), NULL);
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table = xcb_query_font_char_infos(font_info);
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for (i = 0; i < 2 * length; i += 2) {
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xcb_charinfo_t *info = get_charinfo(text[i+1], text[i], font_info, table, false);
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if (info == NULL)
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continue;
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width += info->character_width;
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}
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return width;
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}
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