Make cmd_resize_tiling_width_height work with pixels

src/commands.c

@@ -516,7 +516,7 @@ static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *way, c
     return resize_neighboring_cons(first, second, px, ppt);
 }
 
-static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
+static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int px, int _ppt) {
     LOG("width/height resize\n");
 
     /* get the appropriate current container (skip stacked/tabbed cons) */
@@ -542,8 +542,17 @@ static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way
             child->percent = percentage;
     }
 
-    double new_current_percent = current->percent + ((double)ppt / 100.0);
+    double ppt = (double)_ppt / 100.0;
-    double subtract_percent = ((double)ppt / 100.0) / (children - 1);
+    double new_current_percent;
+    double subtract_percent;
+    if (_ppt) {
+        new_current_percent = current->percent + ppt;
+    } else {
+        new_current_percent = px_resize_to_percent(current, px);
+        ppt = new_current_percent - current->percent;
+    }
+    subtract_percent = ppt / (children - 1);
+
     LOG("new_current_percent = %f\n", new_current_percent);
     LOG("subtract_percent = %f\n", subtract_percent);
     /* Ensure that the new percentages are positive. */
@@ -603,7 +612,8 @@ void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px,
             if (strcmp(direction, "width") == 0 ||
                 strcmp(direction, "height") == 0) {
                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
-                                                    current->con, way, direction, resize_ppt))
+                                                    current->con, way, direction,
+                                                    resize_px, resize_ppt))
                     return;
             } else {
                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
@@ -676,7 +686,7 @@ void cmd_resize_set(I3_CMD, long cwidth, const char *mode_width, long cheight, c
 
                 /* perform resizing and report failure if not possible */
                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
-                                                    target, action_string, "width", adjustment)) {
+                                                    target, action_string, "width", 0, adjustment)) {
                     success = false;
                 }
             }
@@ -702,7 +712,7 @@ void cmd_resize_set(I3_CMD, long cwidth, const char *mode_width, long cheight, c
 
                 /* perform resizing and report failure if not possible */
                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
-                                                    target, action_string, "height", adjustment)) {
+                                                    target, action_string, "height", 0, adjustment)) {
                     success = false;
                 }
             }

testcases/t/141-resize.t

@@ -141,6 +141,72 @@ cmp_float($nodes->[1]->{percent}, 0.166666666666667, 'second window got 16%');
 cmp_float($nodes->[2]->{percent}, 0.166666666666667, 'third window got 16%');
 cmp_float($nodes->[3]->{percent}, 0.50, 'fourth window got 50%');
 
+################################################################################
+# Same but using pixels instead of ppt.
+################################################################################
+
+# Use two windows
+$tmp = fresh_workspace;
+
+$left = open_window;
+$right = open_window;
+
+($nodes, $focus) = get_ws_content($tmp);
+my @widths = ($nodes->[0]->{rect}->{width}, $nodes->[1]->{rect}->{width});
+
+cmd 'resize grow width 10 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+cmp_float($nodes->[0]->{rect}->{width}, $widths[0] - 10, 'left window is 10px smaller');
+cmp_float($nodes->[1]->{rect}->{width}, $widths[1] + 10, 'right window is 10px larger');
+
+# Now test it with four windows
+$tmp = fresh_workspace;
+
+open_window for (1..4);
+
+($nodes, $focus) = get_ws_content($tmp);
+my $width = $nodes->[0]->{rect}->{width};
+
+cmd 'resize grow width 10 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+cmp_float($nodes->[3]->{rect}->{width}, $width + 10, 'last window is 10px larger');
+
+################################################################################
+# Same but for height
+################################################################################
+
+# Use two windows
+$tmp = fresh_workspace;
+cmd 'split v';
+
+$left = open_window;
+$right = open_window;
+
+($nodes, $focus) = get_ws_content($tmp);
+my @heights = ($nodes->[0]->{rect}->{height}, $nodes->[1]->{rect}->{height});
+
+cmd 'resize grow height 10 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+cmp_float($nodes->[0]->{rect}->{height}, $heights[0] - 10, 'left window is 10px smaller');
+cmp_float($nodes->[1]->{rect}->{height}, $heights[1] + 10, 'right window is 10px larger');
+
+# Now test it with four windows
+$tmp = fresh_workspace;
+cmd 'split v';
+
+open_window for (1..4);
+
+($nodes, $focus) = get_ws_content($tmp);
+my $height = $nodes->[0]->{rect}->{height};
+
+cmd 'resize grow height 10 px';
+
+($nodes, $focus) = get_ws_content($tmp);
+cmp_float($nodes->[3]->{rect}->{height}, $height + 10, 'last window is 10px larger');
+
 ################################################################################
 # Check that we can grow tiled windows by pixels
 ################################################################################