Make resize set px work with tiling containers

docs/userguide

@@ -2337,9 +2337,8 @@ optional ppt argument means "percentage points", and if specified it indicates
 that a *tiling container* should be grown or shrunk by that many points, instead
 of by the +px+ value.
 
-Notes about +resize set+: a value of 0 for <width> or <height> means "do
+Note about +resize set+: a value of 0 for <width> or <height> means "do not
-not resize in this direction", and resizing a tiling container by +px+ is not
+resize in this direction".
-implemented.
 
 It is recommended to define bindings for resizing in a dedicated binding mode.
 See <<binding_modes>> and the example in the i3

src/commands.c

@@ -629,6 +629,35 @@ void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px,
     ysuccess(true);
 }
 
+static bool resize_set_tiling(I3_CMD, Con *target, orientation_t resize_orientation, bool is_ppt, long target_size) {
+    direction_t search_direction;
+    char *mode;
+    if (resize_orientation == HORIZ) {
+        search_direction = D_LEFT;
+        mode = "width";
+    } else {
+        search_direction = D_DOWN;
+        mode = "height";
+    }
+
+    /* Get the appropriate current container (skip stacked/tabbed cons) */
+    Con *dummy;
+    resize_find_tiling_participants(&target, &dummy, search_direction, true);
+
+    /* Calculate new size for the target container */
+    int ppt = 0;
+    int px = 0;
+    if (is_ppt) {
+        ppt = target_size - target->percent * 100;
+    } else {
+        px = target_size - (resize_orientation == HORIZ ? target->rect.width : target->rect.height);
+    }
+
+    /* Perform resizing and report failure if not possible */
+    return cmd_resize_tiling_width_height(current_match, cmd_output,
+                                          target, mode, px, ppt);
+}
+
 /*
  * Implementation of 'resize set <width> [px | ppt] <height> [px | ppt]'.
  *
@@ -665,50 +694,13 @@ void cmd_resize_set(I3_CMD, long cwidth, const char *mode_width, long cheight, c
                 continue;
             }
 
-            if (cwidth > 0 && mode_width && strcmp(mode_width, "ppt") == 0) {
+            if (cwidth > 0 && mode_width) {
-                /* get the appropriate current container (skip stacked/tabbed cons) */
+                success &= resize_set_tiling(current_match, cmd_output, current->con,
-                Con *target = current->con;
+                                             HORIZ, strcmp(mode_width, "ppt") == 0, cwidth);
-                Con *dummy;
-                resize_find_tiling_participants(&target, &dummy, D_LEFT, true);
-
-                /* Calculate new size for the target container */
-                double current_percent = target->percent;
-                long adjustment;
-
-                if (current_percent > cwidth) {
-                    adjustment = (int)(current_percent * 100) - cwidth;
-                } else {
-                    adjustment = cwidth - (int)(current_percent * 100);
-                }
-
-                /* perform resizing and report failure if not possible */
-                if (!cmd_resize_tiling_width_height(current_match, cmd_output,
-                                                    target, "width", 0, adjustment)) {
-                    success = false;
-                }
             }
-
+            if (cheight > 0 && mode_height) {
-            if (cheight > 0 && mode_height && strcmp(mode_height, "ppt") == 0) {
+                success &= resize_set_tiling(current_match, cmd_output, current->con,
-                /* get the appropriate current container (skip stacked/tabbed cons) */
+                                             VERT, strcmp(mode_height, "ppt") == 0, cheight);
-                Con *target = current->con;
-                Con *dummy;
-                resize_find_tiling_participants(&target, &dummy, D_DOWN, true);
-
-                /* Calculate new size for the target container */
-                double current_percent = target->percent;
-                long adjustment;
-
-                if (current_percent > cheight) {
-                    adjustment = (int)(current_percent * 100) - cheight;
-                } else {
-                    adjustment = cheight - (int)(current_percent * 100);
-                }
-
-                /* perform resizing and report failure if not possible */
-                if (!cmd_resize_tiling_width_height(current_match, cmd_output,
-                                                    target, "height", 0, adjustment)) {
-                    success = false;
-                }
             }
         }
     }

testcases/t/541-resize-set-tiling.t

@@ -47,6 +47,13 @@ cmd 'resize set width 80 ppt';
 cmp_float($nodes->[0]->{percent}, 0.20, 'left window got 20%');
 cmp_float($nodes->[1]->{percent}, 0.80, 'right window got 80%');
 
+# Same but with px.
+cmd 'resize set width 200 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+
+cmp_float($nodes->[1]->{rect}->{width}, 200, 'right window got 200 px');
+
 ############################################################
 # resize vertically
 ############################################################
@@ -77,6 +84,13 @@ cmd 'resize set height 80 ppt';
 cmp_float($nodes->[0]->{percent}, 0.20, 'top window got 20%');
 cmp_float($nodes->[1]->{percent}, 0.80, 'bottom window got 80%');
 
+# Same but with px.
+cmd 'resize set height 200 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+
+cmp_float($nodes->[1]->{rect}->{height}, 200, 'bottom window got 200 px');
+
 ############################################################
 # resize horizontally and vertically
 ############################################################
@@ -102,6 +116,13 @@ cmp_float($nodes->[1]->{percent}, 0.75, 'right container got 75%');
 cmp_float($nodes->[1]->{nodes}->[0]->{percent}, 0.25, 'top-right window got 25%');
 cmp_float($nodes->[1]->{nodes}->[1]->{percent}, 0.75, 'bottom-right window got 75%');
 
+# Same but with px.
+cmd 'resize set 155 px 135 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+
+cmp_float($nodes->[1]->{nodes}->[1]->{rect}->{width}, 155, 'bottom-right window got 155 px width');
+cmp_float($nodes->[1]->{nodes}->[1]->{rect}->{height}, 135, 'bottom-right window got 135 px height');
 
 ############################################################
 # resize from inside a tabbed container
@@ -130,6 +151,12 @@ cmd 'resize set 75 ppt 0 ppt';
 cmp_float($nodes->[0]->{percent}, 0.25, 'left container got 25%');
 cmp_float($nodes->[1]->{percent}, 0.75, 'right container got 75%');
 
+# Same but with px.
+cmd 'resize set 155 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+
+cmp_float($nodes->[1]->{rect}->{width}, 155, 'right container got 155 px');
 
 ############################################################
 # resize from inside a stacked container
@@ -158,5 +185,11 @@ cmd 'resize set 75 ppt 0 ppt';
 cmp_float($nodes->[0]->{percent}, 0.25, 'left container got 25%');
 cmp_float($nodes->[1]->{percent}, 0.75, 'right container got 75%');
 
+# Same but with px.
+cmd 'resize set 130 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+
+cmp_float($nodes->[1]->{rect}->{width}, 130, 'right container got 130 px');
 
 done_testing;