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node-editor: Don't reparse node when scaling

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Makes scaling complex nodes bearable.
This commit is contained in:
Benjamin Otte
2023-07-17 22:55:59 +02:00
parent ff9903d47f
commit 6fb33c775e
1 changed files with 30 additions and 19 deletions
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49
demos/node-editor/node-editor-window.c
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@@ -170,31 +170,19 @@ text_iter_skip_whitespace_backward (GtkTextIter *iter)
}
static void
text_changed (GtkTextBuffer *buffer,
NodeEditorWindow *self)
node_changed (NodeEditorWindow *self)
{
char *text;
GBytes *bytes;
GtkTextIter iter;
GtkTextIter start, end;
float scale;
GskRenderNode *big_node;
g_array_remove_range (self->errors, 0, self->errors->len);
text = get_current_text (self->text_buffer);
text_buffer_remove_all_tags (self->text_buffer);
bytes = g_bytes_new_take (text, strlen (text));
g_clear_pointer (&self->node, gsk_render_node_unref);
/* If this is too slow, go fix the parser performance */
self->node = gsk_render_node_deserialize (bytes, deserialize_error_func, self);
scale = gtk_scale_button_get_value (GTK_SCALE_BUTTON (self->scale_scale));
if (self->node && scale != 0.)
{
GskTransform *transform;
scale = pow (2., scale);
big_node = gsk_transform_node_new (self->node, gsk_transform_scale (NULL, scale, scale));
transform = gsk_transform_scale (NULL, scale, scale);
big_node = gsk_transform_node_new (self->node, transform);
gsk_transform_unref (transform);
}
else if (self->node)
{
@@ -205,7 +193,6 @@ text_changed (GtkTextBuffer *buffer,
big_node = NULL;
}
g_bytes_unref (bytes);
if (self->node)
{
/* XXX: Is this code necessary or can we have API to turn nodes into paintables? */
@@ -245,6 +232,30 @@ text_changed (GtkTextBuffer *buffer,
}
g_clear_pointer (&big_node, gsk_render_node_unref);
}
static void
text_changed (GtkTextBuffer *buffer,
NodeEditorWindow *self)
{
char *text;
GBytes *bytes;
GtkTextIter iter;
GtkTextIter start, end;
g_array_remove_range (self->errors, 0, self->errors->len);
text = get_current_text (self->text_buffer);
text_buffer_remove_all_tags (self->text_buffer);
bytes = g_bytes_new_take (text, strlen (text));
g_clear_pointer (&self->node, gsk_render_node_unref);
/* If this is too slow, go fix the parser performance */
self->node = gsk_render_node_deserialize (bytes, deserialize_error_func, self);
node_changed (self);
g_bytes_unref (bytes);
gtk_text_buffer_get_start_iter (self->text_buffer, &iter);
@@ -330,7 +341,7 @@ scale_changed (GObject *object,
GParamSpec *pspec,
NodeEditorWindow *self)
{
text_changed (self->text_buffer, self);
node_changed (self);
}
static gboolean