smoke: Use normal window resize mechanism

diff --git a/clients/smoke.c b/clients/smoke.c
index 69a1ac7..6f80054 100644 (file)
--- a/clients/smoke.c
+++ b/clients/smoke.c
@@ -39,9 +39,9 @@ struct smoke {
        struct display *display;
        struct window *window;
        struct widget *widget;
-       cairo_surface_t *surface;
-       int x, y, width, height;
+       int width, height;
        int offset, current;
+       uint32_t time;
        struct { float *d, *u, *v; } b[2];
 };
 
@@ -145,17 +145,17 @@ static void project(struct smoke *smoke, uint32_t time,
        }
 }
 
-static void render(struct smoke *smoke)
+static void render(struct smoke *smoke, cairo_surface_t *surface)
 {
        unsigned char *dest;
        int x, y, width, height, stride;
        float *s;
        uint32_t *d, c, a;
 
-       dest = cairo_image_surface_get_data (smoke->surface);
-       width = cairo_image_surface_get_width (smoke->surface);
-       height = cairo_image_surface_get_height (smoke->surface);
-       stride = cairo_image_surface_get_stride (smoke->surface);
+       dest = cairo_image_surface_get_data(surface);
+       width = cairo_image_surface_get_width(surface);
+       height = cairo_image_surface_get_height(surface);
+       stride = cairo_image_surface_get_stride(surface);
 
        for (y = 1; y < height - 1; y++) {
                s = smoke->b[smoke->current].d + y * smoke->height;
@@ -175,11 +175,27 @@ static void render(struct smoke *smoke)
 static void
 frame_callback(void *data, struct wl_callback *callback, uint32_t time)
 {
-       static const struct wl_callback_listener listener = {
-               frame_callback,
-       };
        struct smoke *smoke = data;
 
+       window_schedule_redraw(smoke->window);
+       smoke->time = time;
+
+       if (callback)
+               wl_callback_destroy(callback);
+}
+
+static const struct wl_callback_listener listener = {
+       frame_callback,
+};
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+       struct smoke *smoke = data;
+       uint32_t time = smoke->time;
+       struct wl_callback *callback;
+       cairo_surface_t *surface;
+
        diffuse(smoke, time / 30, smoke->b[0].u, smoke->b[1].u);
        diffuse(smoke, time / 30, smoke->b[0].v, smoke->b[1].v);
        project(smoke, time / 30,
@@ -200,15 +216,16 @@ frame_callback(void *data, struct wl_callback *callback, uint32_t time)
               smoke->b[0].u, smoke->b[0].v,
               smoke->b[1].d, smoke->b[0].d);
 
-       render(smoke);
+       surface = window_get_surface(smoke->window);
 
-       if (callback)
-               wl_callback_destroy(callback);
+       render(smoke, surface);
 
-       display_surface_damage(smoke->display, smoke->surface,
+       display_surface_damage(smoke->display, surface,
                               0, 0, smoke->width, smoke->height);
        window_damage(smoke->window, 0, 0, smoke->width, smoke->height);
 
+       cairo_surface_destroy(surface);
+
        callback = wl_surface_frame(window_get_wl_surface(smoke->window));
        wl_callback_add_listener(callback, &listener, smoke);
 }
@@ -272,15 +289,12 @@ int main(int argc, char *argv[])
                return -1;
        }
 
-       smoke.x = 200;
-       smoke.y = 200;
        smoke.width = 200;
        smoke.height = 200;
        smoke.display = d;
        smoke.window = window_create(d);
        smoke.widget = window_add_widget(smoke.window, &smoke);
        window_set_title(smoke.window, "smoke");
-       widget_set_size(smoke.widget, smoke.width, smoke.height);
 
        window_set_buffer_type(smoke.window, WINDOW_BUFFER_TYPE_SHM);
        clock_gettime(CLOCK_MONOTONIC, &ts);
@@ -296,16 +310,14 @@ int main(int argc, char *argv[])
        smoke.b[1].u = calloc(size, sizeof(float));
        smoke.b[1].v = calloc(size, sizeof(float));
 
-       window_create_surface(smoke.window);
-       smoke.surface = window_get_surface(smoke.window);
-
-       window_flush(smoke.window);
-
        widget_set_motion_handler(smoke.widget, smoke_motion_handler);
        widget_set_resize_handler(smoke.widget, resize_handler);
+       widget_set_redraw_handler(smoke.widget, redraw_handler);
 
        window_set_user_data(smoke.window, &smoke);
-       frame_callback(&smoke, NULL, 0);
+
+       widget_schedule_resize(smoke.widget, smoke.width, smoke.height);
+
        display_run(d);
 
        return 0;