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snapshot: Add api for radial gradients

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These are the equivalents of the linear gradient apis.
This commit is contained in:
Matthias Clasen
2020-09-11 23:50:25 -04:00
committed by Timm Bäder
parent 0c6226c20b
commit 66d16049c3
2 changed files with 96 additions and 0 deletions
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76
gtk/gtksnapshot.c
View File

@@ -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

20
gtk/gtksnapshot.h
View File

@@ -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],