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| author | Matthias Clasen <mclasen@redhat.com> | 2020-09-11 23:50:25 -0400 |
|---|---|---|
| committer | Timm Bäder <mail@baedert.org> | 2020-09-18 15:39:04 +0200 |
| commit | 66d16049c38be502642fe28e834a6bd528cb57b7 (patch) | |
| tree | fa43176cd462484784fd296dff57802fc2212ff6 /gtk | |
| parent | 0c6226c20b2b3dcf3bc77595edcd28b0d4626dfb (diff) | |
| download | gtk+-66d16049c38be502642fe28e834a6bd528cb57b7.tar.gz | |
snapshot: Add api for radial gradients
These are the equivalents of the linear gradient apis.
Diffstat (limited to 'gtk')
| -rw-r--r-- | gtk/gtksnapshot.c | 76 | ||||
| -rw-r--r-- | gtk/gtksnapshot.h | 20 |
2 files changed, 96 insertions, 0 deletions
diff --git a/gtk/gtksnapshot.c b/gtk/gtksnapshot.c index 7de6594167..123bfcd773 100644 --- a/gtk/gtksnapshot.c +++ b/gtk/gtksnapshot.c @@ -1967,6 +1967,82 @@ gtk_snapshot_append_repeating_linear_gradient (GtkSnapshot *snapshot, gtk_snapshot_append_node_internal (snapshot, node); } +void +gtk_snapshot_append_radial_gradient (GtkSnapshot *snapshot, + const graphene_rect_t *bounds, + const graphene_point_t *center, + float radius, + float scale, + float start, + float end, + const GskColorStop *stops, + gsize n_stops) +{ + GskRenderNode *node; + graphene_rect_t real_bounds; + graphene_point_t real_center; + float scale_x, scale_y, dx, dy; + + g_return_if_fail (snapshot != NULL); + g_return_if_fail (center != NULL); + g_return_if_fail (stops != NULL); + g_return_if_fail (n_stops > 1); + + gtk_snapshot_ensure_affine (snapshot, &scale_x, &scale_y, &dx, &dy); + gtk_graphene_rect_scale_affine (bounds, scale_x, scale_y, dx, dy, &real_bounds); + real_center.x = scale_x * center->x + dx; + real_center.y = scale_y * center->y + dy; + + node = gsk_radial_gradient_node_new (&real_bounds, + &real_center, + radius, + scale, + start, + end, + stops, + n_stops); + + gtk_snapshot_append_node_internal (snapshot, node); +} + +void +gtk_snapshot_append_repeating_radial_gradient (GtkSnapshot *snapshot, + const graphene_rect_t *bounds, + const graphene_point_t *center, + float radius, + float scale, + float start, + float end, + const GskColorStop *stops, + gsize n_stops) +{ + GskRenderNode *node; + graphene_rect_t real_bounds; + graphene_point_t real_center; + float scale_x, scale_y, dx, dy; + + g_return_if_fail (snapshot != NULL); + g_return_if_fail (center != NULL); + g_return_if_fail (stops != NULL); + g_return_if_fail (n_stops > 1); + + gtk_snapshot_ensure_affine (snapshot, &scale_x, &scale_y, &dx, &dy); + gtk_graphene_rect_scale_affine (bounds, scale_x, scale_y, dx, dy, &real_bounds); + real_center.x = scale_x * center->x + dx; + real_center.y = scale_y * center->y + dy; + + node = gsk_repeating_radial_gradient_node_new (&real_bounds, + &real_center, + radius, + scale, + start, + end, + stops, + n_stops); + + gtk_snapshot_append_node_internal (snapshot, node); +} + /** * gtk_snapshot_append_border: * @snapshot: a #GtkSnapshot diff --git a/gtk/gtksnapshot.h b/gtk/gtksnapshot.h index 406a02da58..9be3382a52 100644 --- a/gtk/gtksnapshot.h +++ b/gtk/gtksnapshot.h @@ -165,6 +165,26 @@ void gtk_snapshot_append_repeating_linear_gradient (GtkSnapshot const GskColorStop *stops, gsize n_stops); GDK_AVAILABLE_IN_ALL +void gtk_snapshot_append_radial_gradient (GtkSnapshot *snapshot, + const graphene_rect_t *bounds, + const graphene_point_t *center, + float radius, + float scale, + float start, + float end, + const GskColorStop *stops, + gsize n_stops); +GDK_AVAILABLE_IN_ALL +void gtk_snapshot_append_repeating_radial_gradient (GtkSnapshot *snapshot, + const graphene_rect_t *bounds, + const graphene_point_t *center, + float radius, + float scale, + float start, + float end, + const GskColorStop *stops, + gsize n_stops); +GDK_AVAILABLE_IN_ALL void gtk_snapshot_append_border (GtkSnapshot *snapshot, const GskRoundedRect *outline, const float border_width[4], |