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Add margin animation to the example demo

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This commit is contained in:
Drew DeVault 2018-03-26 18:44:36 -04:00
parent 86ca4bea6d
commit 0e318df13d
2 changed files with 43 additions and 12 deletions
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27
examples/layer-shell.c
View file

@ -14,6 +14,7 @@
static struct wl_compositor *compositor = NULL;
static struct zwlr_layer_shell_v1 *layer_shell = NULL;
struct zwlr_layer_surface_v1 *layer_surface;
static struct wl_output *wl_output = NULL;
struct wl_surface *wl_surface;
@ -26,8 +27,11 @@ static uint32_t output = 0;
static uint32_t layer = ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND;
static uint32_t anchor = 0;
static uint32_t width = 256, height = 256;
static int32_t margin_top = 0;
static double alpha = 1.0;
static bool run_display = true;
static bool animate = false;
static double frame = 0;
static struct {
struct timespec last_frame;
@ -67,6 +71,18 @@ static void draw(void) {
demo.dec = inc;
}
if (animate) {
frame += ms / 50.0;
int32_t old_top = margin_top;
margin_top = -(20 - ((int)frame % 20));
if (old_top != margin_top) {
wlr_log(L_DEBUG, "setting margin to %d", margin_top);
zwlr_layer_surface_v1_set_margin(layer_surface,
margin_top, 0, 0, 0);
wl_surface_commit(wl_surface);
}
}
glViewport(0, 0, width, height);
glClearColor(demo.color[0], demo.color[1], demo.color[2], alpha);
glClear(GL_COLOR_BUFFER_BIT);
@ -136,11 +152,10 @@ int main(int argc, char **argv) {
wlr_log_init(L_DEBUG, NULL);
char *namespace = "wlroots";
int exclusive_zone = 0;
int32_t margin_top = 0, margin_right = 0,
margin_bottom = 0, margin_left = 0;
int32_t margin_right = 0, margin_bottom = 0, margin_left = 0;
bool found;
int c;
while ((c = getopt(argc, argv, "w:h:o:l:a:x:m:t:")) != -1) {
while ((c = getopt(argc, argv, "nw:h:o:l:a:x:m:t:")) != -1) {
switch (c) {
case 'o':
output = atoi(optarg);
@ -217,6 +232,9 @@ int main(int argc, char **argv) {
assert(!*endptr);
break;
}
case 'n':
animate = true;
break;
default:
break;
}
@ -253,8 +271,7 @@ int main(int argc, char **argv) {
wl_surface = wl_compositor_create_surface(compositor);
assert(wl_surface);
struct zwlr_layer_surface_v1 *layer_surface =
zwlr_layer_shell_v1_get_layer_surface(layer_shell,
layer_surface = zwlr_layer_shell_v1_get_layer_surface(layer_shell,
wl_surface, wl_output, layer, namespace);
assert(layer_surface);
zwlr_layer_surface_v1_set_size(layer_surface, width, height);

28
rootston/layer_shell.c
View file

@ -12,7 +12,9 @@
#include "rootston/server.h"
static void apply_exclusive(struct wlr_box *usable_area,
uint32_t anchor, int32_t exclusive) {
uint32_t anchor, int32_t exclusive,
int32_t margin_top, int32_t margin_right,
int32_t margin_bottom, int32_t margin_left) {
if (exclusive <= 0) {
return;
}
@ -20,6 +22,7 @@ static void apply_exclusive(struct wlr_box *usable_area,
uint32_t anchors;
int *positive_axis;
int *negative_axis;
int margin;
} edges[] = {
{
.anchors =
@ -28,6 +31,7 @@ static void apply_exclusive(struct wlr_box *usable_area,
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
.positive_axis = &usable_area->y,
.negative_axis = &usable_area->height,
.margin = margin_top,
},
{
.anchors =
@ -36,6 +40,7 @@ static void apply_exclusive(struct wlr_box *usable_area,
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = NULL,
.negative_axis = &usable_area->height,
.margin = margin_bottom,
},
{
.anchors =
@ -44,6 +49,7 @@ static void apply_exclusive(struct wlr_box *usable_area,
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = &usable_area->x,
.negative_axis = &usable_area->width,
.margin = margin_left,
},
{
.anchors =
@ -52,15 +58,16 @@ static void apply_exclusive(struct wlr_box *usable_area,
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = NULL,
.negative_axis = &usable_area->width,
.margin = margin_right,
},
};
for (size_t i = 0; i < sizeof(edges) / sizeof(edges[0]); ++i) {
if ((anchor & edges[i].anchors) == edges[i].anchors) {
if (edges[i].positive_axis) {
*edges[i].positive_axis += exclusive;
*edges[i].positive_axis += exclusive + edges[i].margin;
}
if (edges[i].negative_axis) {
*edges[i].negative_axis -= exclusive;
*edges[i].negative_axis -= exclusive + edges[i].margin;
}
}
}
@ -121,15 +128,15 @@ static void arrange_layer(struct wlr_output *output, struct wl_list *list,
box.y = bounds.y + ((bounds.height / 2) - (box.height / 2));
}
// Margin
if ((state->anchor & both_horiz)) {
if ((state->anchor & both_horiz) == both_horiz) {
box.x += state->margin.left;
box.width -= state->margin.left + state->margin.right;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
box.x += state->margin.bottom;
box.x += state->margin.left;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
box.x -= state->margin.right;
}
if ((state->anchor & both_vert)) {
if ((state->anchor & both_vert) == both_vert) {
box.y += state->margin.top;
box.height -= state->margin.top + state->margin.bottom;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
@ -139,7 +146,11 @@ static void arrange_layer(struct wlr_output *output, struct wl_list *list,
}
// Apply
roots_surface->geo = box;
apply_exclusive(usable_area, state->anchor, state->exclusive_zone);
apply_exclusive(usable_area, state->anchor, state->exclusive_zone,
state->margin.top, state->margin.right,
state->margin.bottom, state->margin.left);
wlr_log(L_DEBUG, "arranged layer at %dx%d@%d,%d",
box.width, box.height, box.x, box.y);
wlr_layer_surface_configure(layer, box.width, box.height);
}
}
@ -212,6 +223,9 @@ static void handle_surface_commit(struct wl_listener *listener, void *data) {
struct roots_output *output = wlr_output->data;
output_damage_from_local_surface(output, layer_surface->surface,
layer->geo.x, layer->geo.y, 0);
arrange_layers(wlr_output);
output_damage_from_local_surface(output, layer_surface->surface,
layer->geo.x, layer->geo.y, 0);
}
}