smooth resize

include/absinthe-toplevel.h

@@ -2,7 +2,7 @@
 
 struct absinthe_toplevel *absinthe_toplevel_at(struct absinthe_server *server, double lx, double ly, struct wlr_surface **surface, double *sx, double *sy);
 
+void absinthe_toplevel_update_borders_geometry(struct absinthe_toplevel *toplevel);
 void absinthe_toplevel_set_position(struct absinthe_toplevel *toplevel, int32_t x, int32_t y);
 void absinthe_toplevel_set_size(struct absinthe_toplevel *toplevel, int32_t width, int32_t height);
-void absinthe_toplevel_update_border_geometry(struct absinthe_toplevel *toplevel);
 void absinthe_toplevel_set_border_color(struct absinthe_toplevel *toplevel, const float color[4]);

include/types.h

@@ -99,6 +99,7 @@ struct absinthe_toplevel {
     struct wlr_scene_tree *scene_tree;
     struct wlr_scene_tree *scene_surface;
     struct wlr_scene_rect *border[4];
+    bool performing_resize;
     struct wlr_box geometry;
     struct wlr_xdg_toplevel *xdg_toplevel;
     struct wl_listener map;

src/absinthe-toplevel.c

@@ -24,31 +24,7 @@ struct absinthe_toplevel *absinthe_toplevel_at(struct absinthe_server *server, d
     return tree->node.data;
 }
 
-void absinthe_toplevel_set_position(struct absinthe_toplevel *toplevel, int32_t x, int32_t y)
+void absinthe_toplevel_update_borders_geometry(struct absinthe_toplevel *toplevel)
-{
-    wlr_scene_node_set_position(&toplevel->scene_tree->node, x, y);
-}
-
-void absinthe_toplevel_set_size(struct absinthe_toplevel *toplevel, int32_t width, int32_t height)
-{
-    if (width < 0 || height < 0) {
-        return;
-    }
-
-    if (width == toplevel->xdg_toplevel->current.width && height == toplevel->xdg_toplevel->current.height) {
-        return;
-    }
-
-    toplevel->geometry.width = width;
-    toplevel->geometry.height = height;
-
-    int bw = ABSINTHE_BORDER_WIDTH;
-
-    wlr_xdg_toplevel_set_size(toplevel->xdg_toplevel, width, height);
-    wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
-}
-
-void absinthe_toplevel_update_border_geometry(struct absinthe_toplevel *toplevel)
 {
     int bw = ABSINTHE_BORDER_WIDTH;
 
@@ -56,6 +32,7 @@ void absinthe_toplevel_update_border_geometry(struct absinthe_toplevel *toplevel
         return;
     }
 
+	wlr_scene_node_set_position(&toplevel->scene_tree->node, toplevel->geometry.x, toplevel->geometry.y);
 	wlr_scene_node_set_position(&toplevel->scene_surface->node, bw, bw);
 
     wlr_scene_rect_set_size(toplevel->border[0], toplevel->geometry.width - 2 * bw, bw);
@@ -69,6 +46,26 @@ void absinthe_toplevel_update_border_geometry(struct absinthe_toplevel *toplevel
 	wlr_scene_node_set_position(&toplevel->border[3]->node, toplevel->geometry.width - bw, 0);
 }
 
+void absinthe_toplevel_set_position(struct absinthe_toplevel *toplevel, int32_t x, int32_t y)
+{
+    wlr_scene_node_set_position(&toplevel->scene_tree->node, x, y);
+}
+
+void absinthe_toplevel_set_size(struct absinthe_toplevel *toplevel, int32_t width, int32_t height)
+{
+    int bw = ABSINTHE_BORDER_WIDTH;
+
+    if (width - 2 * bw < 0 || height - 2 * bw < 0) {
+        return;
+    }
+
+    toplevel->geometry.width = width;
+    toplevel->geometry.height = height;
+
+    wlr_xdg_toplevel_set_size(toplevel->xdg_toplevel, width, height);
+    wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
+}
+
 void absinthe_toplevel_set_border_color(struct absinthe_toplevel *toplevel, const float color[4])
 {
     for (int i = 0; i < 4; ++i) {

src/cursor.c

@@ -18,40 +18,53 @@ static void process_cursor_move(struct absinthe_server *server) {
     uint32_t new_x, new_y;
     new_x = server->cursor->x - server->grab_x + server->grabbed_geometry.x;
     new_y = server->cursor->y - server->grab_y + server->grabbed_geometry.y;
-    wlr_scene_node_set_position(&toplevel->scene_tree->node, new_x, new_y);
+    toplevel->geometry.x = new_x;
+    toplevel->geometry.y = new_y;
+    absinthe_toplevel_set_position(toplevel, new_x, new_y);
 }
 
 static void process_cursor_resize(struct absinthe_server *server) {
     struct absinthe_toplevel *toplevel = server->grabbed_toplevel;
 
+    if (toplevel->performing_resize == true) return;
+
     if (!toplevel) return;
 
+    int bw = ABSINTHE_BORDER_WIDTH;
+
     int32_t new_x, new_y, new_width, new_height;
     new_x = server->grabbed_geometry.x;
     new_y = server->grabbed_geometry.y;
     new_width = server->grabbed_geometry.width;
     new_height = server->grabbed_geometry.height;
 
+    int32_t dx = server->cursor->x - server->grab_x;
+    int32_t dy = server->cursor->y - server->grab_y;
+
+    if (dx == 0 && dy == 0) {
+        return;
+    }
+
     switch (server->cursor_resize_corner) {
     case ABSINTHE_CURSOR_RESIZE_CORNER_TOP_LEFT:
-        new_x += server->cursor->x - server->grab_x;
+        new_x += dx;
-        new_y += server->cursor->y - server->grab_y;
+        new_y += dy;
-        new_width -= server->cursor->x - server->grab_x;
+        new_width -= dx;
-        new_height -= server->cursor->y - server->grab_y;
+        new_height -= dy;
         break;
     case ABSINTHE_CURSOR_RESIZE_CORNER_TOP_RIGHT:
-        new_y += server->cursor->y - server->grab_y;
+        new_y += dy;
-        new_width += server->cursor->x - server->grab_x;
+        new_width += dx;
-        new_height -= server->cursor->y - server->grab_y;
+        new_height -= dy;
         break;
     case ABSINTHE_CURSOR_RESIZE_CORNER_BOTTOM_LEFT:
-        new_x += server->cursor->x - server->grab_x;
+        new_x += dx;
-        new_width -= server->cursor->x - server->grab_x;
+        new_width -= dx;
-        new_height += server->cursor->y - server->grab_y;
+        new_height += dy;
         break;
     case ABSINTHE_CURSOR_RESIZE_CORNER_BOTTOM_RIGHT:
-        new_width += server->cursor->x - server->grab_x;
+        new_width += dx;
-        new_height += server->cursor->y - server->grab_y;
+        new_height += dy;
         break;
     default: // unreachable
         break;
@@ -62,6 +75,8 @@ static void process_cursor_resize(struct absinthe_server *server) {
         toplevel->geometry.y = new_y;
 
         absinthe_toplevel_set_size(toplevel, new_width, new_height);
+
+        toplevel->performing_resize = true;
     }
 }
 

src/xdg-toplevel.c

@@ -13,14 +13,15 @@ void xdg_toplevel_commit(struct wl_listener *listener, void *data)
     if (toplevel->xdg_toplevel->base->initial_commit) {
         int bw = ABSINTHE_BORDER_WIDTH;
 
-        wlr_xdg_toplevel_set_size(toplevel->xdg_toplevel, toplevel->geometry.width - 2 * bw, toplevel->geometry.height - 2 * bw);
+        absinthe_toplevel_set_size(toplevel, toplevel->geometry.width - 2 * bw, toplevel->geometry.height - 2 * bw);
 
         if (toplevel->decoration) {
             xdg_decoration_request_mode(&toplevel->decoration_request_mode, toplevel->decoration);
         }
     } else {
-        absinthe_toplevel_update_border_geometry(toplevel);
         absinthe_toplevel_set_position(toplevel, toplevel->geometry.x, toplevel->geometry.y);
+        absinthe_toplevel_update_borders_geometry(toplevel);
+        toplevel->performing_resize = false;
     }
 }
 
@@ -33,7 +34,9 @@ void xdg_toplevel_map(struct wl_listener *listener, void *data)
         toplevel->border[i]->node.data = toplevel;
     }
 
-    absinthe_toplevel_update_border_geometry(toplevel);
+    int bw = ABSINTHE_BORDER_WIDTH;
+
+    absinthe_toplevel_set_size(toplevel, toplevel->geometry.width - 2 * bw, toplevel->geometry.height - 2 * bw);
 
     absinthe_toplevel_set_border_color(toplevel, bordercolor);