]> git.sur5r.net Git - i3/i3/blobdiff - i3bar/src/xcb.c
Merge pull request #1595 from Deiz/fix-1484
[i3/i3] / i3bar / src / xcb.c
index 3360485a477368133cf16ebb3b2fb3a62d89c473..e53b92262df976bd99d3bdccdfded1e04915c98a 100644 (file)
@@ -34,7 +34,7 @@
 #include "common.h"
 #include "libi3.h"
 
-/* We save the Atoms in an easy to access array, indexed by an enum */
+/* We save the atoms in an easy to access array, indexed by an enum */
 enum {
 #define ATOM_DO(name) name,
 #include "xcb_atoms.def"
@@ -63,6 +63,9 @@ static i3Font font;
 /* Overall height of the bar (based on font size) */
 int bar_height;
 
+/* Cached width of the custom separator if one was set */
+int separator_symbol_width;
+
 /* These are only relevant for XKB, which we only need for grabbing modifiers */
 int xkb_base;
 int mod_pressed = 0;
@@ -74,7 +77,7 @@ xcb_gcontext_t statusline_clear;
 xcb_pixmap_t statusline_pm;
 uint32_t statusline_width;
 
-/* Event-Watchers, to interact with the user */
+/* Event watchers, to interact with the user */
 ev_prepare *xcb_prep;
 ev_check *xcb_chk;
 ev_io *xcb_io;
@@ -107,23 +110,23 @@ struct xcb_colors_t {
 struct xcb_colors_t colors;
 
 /* Horizontal offset between a workspace label and button borders */
-const static int ws_hoff_px = 4;
+static const int ws_hoff_px = 4;
 
 /* Vertical offset between a workspace label and button borders */
-const static int ws_voff_px = 3;
+static const int ws_voff_px = 3;
 
 /* Offset between two workspace buttons */
-const static int ws_spacing_px = 1;
+static const int ws_spacing_px = 1;
 
 /* Offset between the statusline and 1) workspace buttons on the left
  *                                   2) the tray or screen edge on the right */
-const static int sb_hoff_px = 4;
+static const int sb_hoff_px = 4;
 
 /* Additional offset between the tray and the statusline, if the tray is not empty */
-const static int tray_loff_px = 2;
+static const int tray_loff_px = 2;
 
 /* Vertical offset between the bar and a separator */
-const static int sep_voff_px = 4;
+static const int sep_voff_px = 4;
 
 /* We define xcb_request_failed as a macro to include the relevant line number */
 #define xcb_request_failed(cookie, err_msg) _xcb_request_failed(cookie, err_msg, __LINE__)
@@ -155,11 +158,38 @@ int get_tray_width(struct tc_head *trayclients) {
     return tray_width;
 }
 
+/*
+ * Draws a separator for the given block if necessary.
+ *
+ */
+static void draw_separator(uint32_t x, struct status_block *block) {
+    uint32_t sep_offset = get_sep_offset(block);
+    if (TAILQ_NEXT(block, blocks) == NULL || sep_offset == 0)
+        return;
+
+    uint32_t center_x = x - sep_offset;
+    if (config.separator_symbol == NULL) {
+        /* Draw a classic one pixel, vertical separator. */
+        uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_LINE_WIDTH;
+        uint32_t values[] = {colors.sep_fg, colors.bar_bg, logical_px(1)};
+        xcb_change_gc(xcb_connection, statusline_ctx, mask, values);
+        xcb_poly_line(xcb_connection, XCB_COORD_MODE_ORIGIN, statusline_pm, statusline_ctx, 2,
+                      (xcb_point_t[]){{center_x, logical_px(sep_voff_px)},
+                                      {center_x, bar_height - logical_px(sep_voff_px)}});
+    } else {
+        /* Draw a custom separator. */
+        uint32_t separator_x = MAX(x - block->sep_block_width, center_x - separator_symbol_width / 2);
+        set_font_colors(statusline_ctx, colors.sep_fg, colors.bar_bg);
+        draw_text(config.separator_symbol, statusline_pm, statusline_ctx,
+                  separator_x, logical_px(ws_voff_px), x - separator_x);
+    }
+}
+
 /*
  * Redraws the statusline to the buffer
  *
  */
-void refresh_statusline(void) {
+void refresh_statusline(bool use_short_text) {
     struct status_block *block;
 
     uint32_t old_statusline_width = statusline_width;
@@ -167,6 +197,12 @@ void refresh_statusline(void) {
 
     /* Predict the text width of all blocks (in pixels). */
     TAILQ_FOREACH(block, &statusline_head, blocks) {
+        /* Try to use the shorter text if necessary and possible. */
+        if (use_short_text && block->short_text != NULL) {
+            I3STRING_FREE(block->full_text);
+            block->full_text = i3string_copy(block->short_text);
+        }
+
         if (i3string_get_num_bytes(block->full_text) == 0)
             continue;
 
@@ -239,17 +275,8 @@ void refresh_statusline(void) {
         draw_text(block->full_text, statusline_pm, statusline_ctx, x + block->x_offset, logical_px(ws_voff_px), block->width);
         x += block->width + block->sep_block_width + block->x_offset + block->x_append;
 
-        uint32_t sep_offset = get_sep_offset(block);
-        if (TAILQ_NEXT(block, blocks) != NULL && sep_offset > 0) {
-            /* This is not the last block, draw a separator. */
-            uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_LINE_WIDTH;
-            uint32_t values[] = {colors.sep_fg, colors.bar_bg, logical_px(1)};
-            xcb_change_gc(xcb_connection, statusline_ctx, mask, values);
-            xcb_poly_line(xcb_connection, XCB_COORD_MODE_ORIGIN, statusline_pm,
-                          statusline_ctx, 2,
-                          (xcb_point_t[]){{x - sep_offset, logical_px(sep_voff_px)},
-                                          {x - sep_offset, bar_height - logical_px(sep_voff_px)}});
-        }
+        /* If this is not the last block, draw a separator. */
+        draw_separator(x, block);
     }
 }
 
@@ -489,7 +516,7 @@ void handle_button(xcb_button_press_event_t *event) {
     size_t namelen = 0;
     const char *utf8_name = cur_ws->canonical_name;
     for (const char *walk = utf8_name; *walk != '\0'; walk++) {
-        if (*walk == '"')
+        if (*walk == '"' || *walk == '\\')
             num_quotes++;
         /* While we’re looping through the name anyway, we can save one
          * strlen(). */
@@ -503,7 +530,7 @@ void handle_button(xcb_button_press_event_t *event) {
     for (inpos = 0, outpos = strlen("workspace \"");
          inpos < namelen;
          inpos++, outpos++) {
-        if (utf8_name[inpos] == '"') {
+        if (utf8_name[inpos] == '"' || utf8_name[inpos] == '\\') {
             buffer[outpos] = '\\';
             outpos++;
         }
@@ -1020,7 +1047,7 @@ void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
                 redraw_bars();
                 break;
             case XCB_BUTTON_PRESS:
-                /* Button press events are mouse-buttons clicked on one of our bars */
+                /* Button press events are mouse buttons clicked on one of our bars */
                 handle_button((xcb_button_press_event_t *)event);
                 break;
             case XCB_CLIENT_MESSAGE:
@@ -1053,7 +1080,7 @@ void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
 }
 
 /*
- * Dummy Callback. We only need this, so that the Prepare- and Check-Watchers
+ * Dummy callback. We only need this, so that the prepare and check watchers
  * are triggered
  *
  */
@@ -1066,7 +1093,7 @@ void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
  *
  */
 char *init_xcb_early() {
-    /* FIXME: xcb_connect leaks Memory */
+    /* FIXME: xcb_connect leaks memory */
     xcb_connection = xcb_connect(NULL, &screen);
     if (xcb_connection_has_error(xcb_connection)) {
         ELOG("Cannot open display\n");
@@ -1109,7 +1136,7 @@ char *init_xcb_early() {
                                                                root_screen->width_in_pixels,
                                                                root_screen->height_in_pixels);
 
-    /* The various Watchers to communicate with xcb */
+    /* The various watchers to communicate with xcb */
     xcb_io = smalloc(sizeof(ev_io));
     xcb_prep = smalloc(sizeof(ev_prepare));
     xcb_chk = smalloc(sizeof(ev_check));
@@ -1192,6 +1219,9 @@ void init_xcb_late(char *fontname) {
     DLOG("Calculated font height: %d\n", font.height);
     bar_height = font.height + 2 * logical_px(ws_voff_px);
 
+    if (config.separator_symbol)
+        separator_symbol_width = predict_text_width(config.separator_symbol);
+
     xcb_flush(xcb_connection);
 
     if (config.hide_on_modifier == M_HIDE)
@@ -1303,7 +1333,7 @@ void init_tray(void) {
 
 /*
  * We need to set the _NET_SYSTEM_TRAY_COLORS atom on the tray selection window
- * to make GTK+ 3 applets with Symbolic Icons visible. If the colors are unset,
+ * to make GTK+ 3 applets with symbolic icons visible. If the colors are unset,
  * they assume a light background.
  * See also https://bugzilla.gnome.org/show_bug.cgi?id=679591
  *
@@ -1495,6 +1525,50 @@ void realloc_sl_buffer(void) {
     }
 }
 
+/* Strut partial tells i3 where to reserve space for i3bar. This is determined
+ * by the `position` bar config directive. */
+xcb_void_cookie_t config_strut_partial(i3_output *output) {
+    /* A local struct to save the strut_partial property */
+    struct {
+        uint32_t left;
+        uint32_t right;
+        uint32_t top;
+        uint32_t bottom;
+        uint32_t left_start_y;
+        uint32_t left_end_y;
+        uint32_t right_start_y;
+        uint32_t right_end_y;
+        uint32_t top_start_x;
+        uint32_t top_end_x;
+        uint32_t bottom_start_x;
+        uint32_t bottom_end_x;
+    } __attribute__((__packed__)) strut_partial;
+    memset(&strut_partial, 0, sizeof(strut_partial));
+
+    switch (config.position) {
+        case POS_NONE:
+            break;
+        case POS_TOP:
+            strut_partial.top = bar_height;
+            strut_partial.top_start_x = output->rect.x;
+            strut_partial.top_end_x = output->rect.x + output->rect.w;
+            break;
+        case POS_BOT:
+            strut_partial.bottom = bar_height;
+            strut_partial.bottom_start_x = output->rect.x;
+            strut_partial.bottom_end_x = output->rect.x + output->rect.w;
+            break;
+    }
+    return xcb_change_property(xcb_connection,
+                               XCB_PROP_MODE_REPLACE,
+                               output->bar,
+                               atoms[_NET_WM_STRUT_PARTIAL],
+                               XCB_ATOM_CARDINAL,
+                               32,
+                               12,
+                               &strut_partial);
+}
+
 /*
  * Reconfigure all bars and create new bars for recently activated outputs
  *
@@ -1594,49 +1668,7 @@ void reconfig_windows(bool redraw_bars) {
                                                                 1,
                                                                 (unsigned char *)&atoms[_NET_WM_WINDOW_TYPE_DOCK]);
 
-            /* We need to tell i3, where to reserve space for i3bar */
-            /* left, right, top, bottom, left_start_y, left_end_y,
-             * right_start_y, right_end_y, top_start_x, top_end_x, bottom_start_x,
-             * bottom_end_x */
-            /* A local struct to save the strut_partial property */
-            struct {
-                uint32_t left;
-                uint32_t right;
-                uint32_t top;
-                uint32_t bottom;
-                uint32_t left_start_y;
-                uint32_t left_end_y;
-                uint32_t right_start_y;
-                uint32_t right_end_y;
-                uint32_t top_start_x;
-                uint32_t top_end_x;
-                uint32_t bottom_start_x;
-                uint32_t bottom_end_x;
-            } __attribute__((__packed__)) strut_partial;
-            memset(&strut_partial, 0, sizeof(strut_partial));
-
-            switch (config.position) {
-                case POS_NONE:
-                    break;
-                case POS_TOP:
-                    strut_partial.top = bar_height;
-                    strut_partial.top_start_x = walk->rect.x;
-                    strut_partial.top_end_x = walk->rect.x + walk->rect.w;
-                    break;
-                case POS_BOT:
-                    strut_partial.bottom = bar_height;
-                    strut_partial.bottom_start_x = walk->rect.x;
-                    strut_partial.bottom_end_x = walk->rect.x + walk->rect.w;
-                    break;
-            }
-            xcb_void_cookie_t strut_cookie = xcb_change_property(xcb_connection,
-                                                                 XCB_PROP_MODE_REPLACE,
-                                                                 walk->bar,
-                                                                 atoms[_NET_WM_STRUT_PARTIAL],
-                                                                 XCB_ATOM_CARDINAL,
-                                                                 32,
-                                                                 12,
-                                                                 &strut_partial);
+            xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
 
             /* We also want a graphics context for the bars (it defines the properties
              * with which we draw to them) */
@@ -1696,6 +1728,9 @@ void reconfig_windows(bool redraw_bars) {
             values[3] = bar_height;
             values[4] = XCB_STACK_MODE_ABOVE;
 
+            DLOG("Reconfiguring strut partial property for output %s\n", walk->name);
+            xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
+
             DLOG("Destroying buffer for output %s\n", walk->name);
             xcb_free_pixmap(xcb_connection, walk->buffer);
 
@@ -1744,6 +1779,7 @@ void reconfig_windows(bool redraw_bars) {
             if (xcb_request_failed(cfg_cookie, "Could not reconfigure window") ||
                 xcb_request_failed(chg_cookie, "Could not change window") ||
                 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
+                xcb_request_failed(strut_cookie, "Could not set strut") ||
                 (redraw_bars && (xcb_request_failed(umap_cookie, "Could not unmap window") ||
                                  (config.hide_on_modifier == M_DOCK && xcb_request_failed(map_cookie, "Could not map window"))))) {
                 exit(EXIT_FAILURE);
@@ -1760,7 +1796,7 @@ void draw_bars(bool unhide) {
     DLOG("Drawing bars...\n");
     int workspace_width = 0;
 
-    refresh_statusline();
+    refresh_statusline(false);
 
     i3_output *outputs_walk;
     SLIST_FOREACH(outputs_walk, outputs, slist) {
@@ -1904,14 +1940,17 @@ void draw_bars(bool unhide) {
         if (!TAILQ_EMPTY(&statusline_head)) {
             DLOG("Printing statusline!\n");
 
-            /* Luckily we already prepared a seperate pixmap containing the rendered
-             * statusline, we just have to copy the relevant parts to the relevant
-             * position */
             int tray_width = get_tray_width(outputs_walk->trayclients);
+            uint32_t max_statusline_width = outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px);
 
-            int visible_statusline_width = MIN(statusline_width,
-                                               outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px));
+            /* If the statusline is too long, try to use short texts. */
+            if (statusline_width > max_statusline_width)
+                refresh_statusline(true);
 
+            /* Luckily we already prepared a seperate pixmap containing the rendered
+             * statusline, we just have to copy the relevant parts to the relevant
+             * position */
+            int visible_statusline_width = MIN(statusline_width, max_statusline_width);
             xcb_copy_area(xcb_connection,
                           statusline_pm,
                           outputs_walk->buffer,