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render: Make gtk_render_icon() use the snapshot API

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This removes a lot of duplicated code.
This commit is contained in:
Benjamin Otte 2018-07-24 20:23:20 +02:00
parent 9675c99043
commit 95a4eff6ba
3 changed files with 15 additions and 91 deletions
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26
gtk/gtkrender.c
View File

@ -629,17 +629,21 @@ gtk_render_icon (GtkStyleContext *context,
gdouble x,
gdouble y)
{
cairo_surface_t *surface;
GtkSnapshot *snapshot;
GskRenderNode *node;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
g_return_if_fail (cr != NULL);
snapshot = gtk_snapshot_new ();
gtk_css_style_snapshot_icon_paintable (gtk_style_context_lookup_style (context),
snapshot,
GDK_PAINTABLE (texture),
x, y,
FALSE);
node = gtk_snapshot_free_to_node (snapshot);
if (node == NULL)
return;
surface = gdk_texture_download_surface (texture);
gtk_css_style_render_icon_surface (gtk_style_context_lookup_style (context),
cr,
surface,
x, y);
cairo_surface_destroy (surface);
cairo_save (cr);
cairo_translate (cr, x, y);
gsk_render_node_draw (node, cr);
cairo_restore (cr);
}

75
gtk/gtkrendericon.c
View File

@ -96,81 +96,6 @@ gtk_css_style_snapshot_icon (GtkCssStyle *style,
gtk_snapshot_pop (snapshot);
}
static gboolean
get_surface_extents (cairo_surface_t *surface,
GdkRectangle *out_extents)
{
cairo_t *cr;
gboolean result;
cr = cairo_create (surface);
result = gdk_cairo_get_clip_rectangle (cr, out_extents);
cairo_destroy (cr);
return result;
}
void
gtk_css_style_render_icon_surface (GtkCssStyle *style,
cairo_t *cr,
cairo_surface_t *surface,
double x,
double y)
{
const GtkCssValue *shadows;
graphene_matrix_t graphene_matrix;
cairo_matrix_t matrix, transform_matrix, saved_matrix;
GdkRectangle extents;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (cr != NULL);
g_return_if_fail (surface != NULL);
shadows = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
if (!get_surface_extents (surface, &extents))
{
/* weird infinite surface, no special magic for you */
cairo_set_source_surface (cr, surface, x, y);
_gtk_css_shadows_value_paint_icon (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW), cr);
cairo_paint (cr);
return;
}
cairo_get_matrix (cr, &saved_matrix);
cairo_translate (cr, x + extents.x, y + extents.y);
if (gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &graphene_matrix) &&
graphene_matrix_is_2d (&graphene_matrix))
{
cairo_pattern_t *pattern;
graphene_matrix_to_2d (&graphene_matrix,
&transform_matrix.xx, &transform_matrix.yx,
&transform_matrix.xy, &transform_matrix.yy,
&transform_matrix.x0, &transform_matrix.y0);
/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
cairo_matrix_init_translate (&matrix, extents.width / 2, extents.height / 2);
cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
cairo_matrix_translate (&matrix, - extents.width / 2, - extents.height / 2);
if (cairo_matrix_invert (&matrix) != CAIRO_STATUS_SUCCESS)
{
g_assert_not_reached ();
}
cairo_matrix_translate (&matrix, extents.x, extents.y);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
_gtk_css_shadows_value_paint_icon (shadows, cr);
cairo_paint (cr);
}
cairo_set_matrix (cr, &saved_matrix);
}
void
gtk_css_style_snapshot_icon_paintable (GtkCssStyle *style,
GtkSnapshot *snapshot,

5
gtk/gtkrendericonprivate.h
View File

@ -35,11 +35,6 @@ void gtk_css_style_snapshot_icon (GtkCssStyle *style,
double height,
GtkCssImageBuiltinType builtin_type);
void gtk_css_style_render_icon_surface (GtkCssStyle *style,
cairo_t *cr,
cairo_surface_t *surface,
double x,
double y);
void gtk_css_style_snapshot_icon_paintable (GtkCssStyle *style,
GtkSnapshot *snapshot,
GdkPaintable *paintable,