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clutter/text: Drop usage of ClutterPath

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In the unlikely case we have multiple rectangles in our selection
(selection spanning several lines, or across LTR/RTL bounds), paint each
of those instead of setting a CoglPath-based clip/fill.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1126
This commit is contained in:
Carlos Garnacho 2020-03-14 18:06:47 +01:00
parent ba3417667f
commit f672d6ee3b
1 changed files with 56 additions and 53 deletions
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109
clutter/clutter/clutter-text.c
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@ -1907,14 +1907,6 @@ clutter_text_foreach_selection_rectangle (ClutterText *self,
g_free (utf8);
}
static void
add_selection_rectangle_to_path (ClutterText *text,
const ClutterActorBox *box,
gpointer user_data)
{
cogl_path_rectangle (user_data, box->x1, box->y1, box->x2, box->y2);
}
static void
clutter_text_foreach_selection_rectangle_prescaled (ClutterText *self,
ClutterTextSelectionFunc func,
@ -1923,6 +1915,60 @@ clutter_text_foreach_selection_rectangle_prescaled (ClutterText *se
clutter_text_foreach_selection_rectangle (self, 1.0f, func, user_data);
}
static void
paint_selection_rectangle (ClutterText *self,
const ClutterActorBox *box,
gpointer user_data)
{
CoglFramebuffer *fb = user_data;
ClutterTextPrivate *priv = self->priv;
ClutterActor *actor = CLUTTER_ACTOR (self);
guint8 paint_opacity = clutter_actor_get_paint_opacity (actor);
CoglPipeline *color_pipeline = cogl_pipeline_copy (default_color_pipeline);
PangoLayout *layout = clutter_text_get_layout (self);
CoglColor cogl_color = { 0, };
const ClutterColor *color;
/* Paint selection background */
if (priv->selection_color_set)
color = &priv->selection_color;
else if (priv->cursor_color_set)
color = &priv->cursor_color;
else
color = &priv->text_color;
cogl_color_init_from_4ub (&cogl_color,
color->red,
color->green,
color->blue,
paint_opacity * color->alpha / 255);
cogl_color_premultiply (&cogl_color);
cogl_pipeline_set_color (color_pipeline, &cogl_color);
cogl_framebuffer_push_rectangle_clip (fb,
box->x1, box->y1,
box->x2, box->y2);
cogl_framebuffer_draw_rectangle (fb, color_pipeline,
box->x1, box->y1,
box->x2, box->y2);
if (priv->selected_text_color_set)
color = &priv->selected_text_color;
else
color = &priv->text_color;
cogl_color_init_from_4ub (&cogl_color,
color->red,
color->green,
color->blue,
paint_opacity * color->alpha / 255);
cogl_pango_show_layout (fb, layout, priv->text_x, 0, &cogl_color);
cogl_framebuffer_pop_clip (fb);
cogl_object_unref (color_pipeline);
}
/* Draws the selected text, its background, and the cursor */
static void
selection_paint (ClutterText *self,
@ -1965,52 +2011,9 @@ selection_paint (ClutterText *self,
}
else
{
/* Paint selection background first */
CoglPipeline *color_pipeline = cogl_pipeline_copy (default_color_pipeline);
PangoLayout *layout = clutter_text_get_layout (self);
CoglPath *selection_path = cogl_path_new ();
CoglColor cogl_color = { 0, };
/* Paint selection background */
if (priv->selection_color_set)
color = &priv->selection_color;
else if (priv->cursor_color_set)
color = &priv->cursor_color;
else
color = &priv->text_color;
cogl_color_init_from_4ub (&cogl_color,
color->red,
color->green,
color->blue,
paint_opacity * color->alpha / 255);
cogl_color_premultiply (&cogl_color);
cogl_pipeline_set_color (color_pipeline, &cogl_color);
clutter_text_foreach_selection_rectangle_prescaled (self,
add_selection_rectangle_to_path,
selection_path);
cogl_framebuffer_fill_path (fb, color_pipeline, selection_path);
/* Paint selected text */
cogl_framebuffer_push_path_clip (fb, selection_path);
cogl_object_unref (selection_path);
if (priv->selected_text_color_set)
color = &priv->selected_text_color;
else
color = &priv->text_color;
cogl_color_init_from_4ub (&cogl_color,
color->red,
color->green,
color->blue,
paint_opacity * color->alpha / 255);
cogl_pango_show_layout (fb, layout, priv->text_x, 0, &cogl_color);
cogl_framebuffer_pop_clip (fb);
paint_selection_rectangle,
fb);
}
}