Implement options to change the default mode of containers

[i3/i3] / src / xcb.c

diff --git a/src/xcb.c b/src/xcb.c
index 4ad69db1baf1b83fce4bee64b7c1929b3aa8e909..a2f813b06898ff2932d93baf7a04c6257273988f 100644 (file)
--- a/src/xcb.c
+++ b/src/xcb.c
@@ -90,7 +90,7 @@ uint32_t get_colorpixel(xcb_connection_t *conn, char *hex) {
  *
  */
 xcb_window_t create_window(xcb_connection_t *conn, Rect dims, uint16_t window_class, int cursor,
-                           uint32_t mask, uint32_t *values) {
+                           bool map, uint32_t mask, uint32_t *values) {
         xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
         xcb_window_t result = xcb_generate_id(conn);
         xcb_cursor_t cursor_id = xcb_generate_id(conn);
@@ -121,7 +121,8 @@ xcb_window_t create_window(xcb_connection_t *conn, Rect dims, uint16_t window_cl
                 xcb_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id);
 
         /* Map the window (= make it visible) */
-        xcb_map_window(conn, result);
+        if (map)
+                xcb_map_window(conn, result);
 
         return result;
 }
@@ -180,8 +181,6 @@ void fake_configure_notify(xcb_connection_t *conn, Rect r, xcb_window_t window)
 
         xcb_send_event(conn, false, window, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char*)&generated_event);
         xcb_flush(conn);
-
-        LOG("Told the client it is at %dx%d with %dx%d\n", r.x, r.y, r.width, r.height);
 }
 
 /*
@@ -194,8 +193,8 @@ void fake_absolute_configure_notify(xcb_connection_t *conn, Client *client) {
 
         absolute.x = client->rect.x + client->child_rect.x;
         absolute.y = client->rect.y + client->child_rect.y;
-        absolute.width = client->rect.width - (2 * client->child_rect.x);
-        absolute.height = client->rect.height - client->child_rect.y - 1;
+        absolute.width = client->child_rect.width;
+        absolute.height = client->child_rect.height;
 
         fake_configure_notify(conn, absolute, client->child);
 }
@@ -238,6 +237,8 @@ void xcb_get_numlock_mask(xcb_connection_t *conn) {
 #else
         /* For now, we only use the first keysymbol. */
         xcb_keycode_t *numlock_syms = xcb_key_symbols_get_keycode(keysyms, XCB_NUM_LOCK);
+        if (numlock_syms == NULL)
+                return;
         xcb_keycode_t numlock = *numlock_syms;
         free(numlock_syms);
 #endif
@@ -292,3 +293,71 @@ void cached_pixmap_prepare(xcb_connection_t *conn, struct Cached_Pixmap *pixmap)
 
         xcb_create_gc(conn, pixmap->gc, pixmap->id, 0, 0);
 }
+
+/*
+ * Returns the xcb_charinfo_t for the given character (specified by row and
+ * column in the lookup table) if existing, otherwise the minimum bounds.
+ *
+ */
+static xcb_charinfo_t *get_charinfo(int col, int row, xcb_query_font_reply_t *font_info,
+                                    xcb_charinfo_t *table, bool dont_fallback) {
+        xcb_charinfo_t *result;
+
+        /* Bounds checking */
+        if (row < font_info->min_byte1 || row > font_info->max_byte1 ||
+            col < font_info->min_char_or_byte2 || col > font_info->max_char_or_byte2)
+                return NULL;
+
+        /* If we don’t have a table to lookup the infos per character, return the
+         * minimum bounds */
+        if (table == NULL)
+                return &font_info->min_bounds;
+
+        result = &table[((row - font_info->min_byte1) *
+                         (font_info->max_char_or_byte2 - font_info->min_char_or_byte2 + 1)) +
+                        (col - font_info->min_char_or_byte2)];
+
+        /* If the character has an entry in the table, return it */
+        if (result->character_width != 0 ||
+            (result->right_side_bearing |
+             result->left_side_bearing |
+             result->ascent |
+             result->descent) != 0)
+                return result;
+
+        /* Otherwise, get the default character and return its charinfo */
+        if (dont_fallback)
+                return NULL;
+
+        return get_charinfo((font_info->default_char >> 8),
+                            (font_info->default_char & 0xFF),
+                            font_info,
+                            table,
+                            true);
+}
+
+/*
+ * Calculate the width of the given text (16-bit characters, UCS) with given
+ * real length (amount of glyphs) using the given font.
+ *
+ */
+int predict_text_width(xcb_connection_t *conn, const char *font_pattern, char *text, int length) {
+        xcb_query_font_reply_t *font_info;
+        xcb_charinfo_t *table;
+        int i, width = 0;
+        i3Font *font = load_font(conn, font_pattern);
+
+        font_info = xcb_query_font_reply(conn, xcb_query_font_unchecked(conn, font->id), NULL);
+        table = xcb_query_font_char_infos(font_info);
+
+        for (i = 0; i < 2 * length; i += 2) {
+                xcb_charinfo_t *info = get_charinfo(text[i+1], text[i], font_info, table, false);
+                if (info == NULL)
+                        continue;
+                width += info->character_width;
+        }
+
+        free(font_info);
+
+        return width;
+}