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https://gitlab.freedesktop.org/wayland/weston
synced 2024-07-22 03:04:13 +00:00
Implement animated transitions for zoom in/out.
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befa65318a
commit
e6603981da
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@ -1640,7 +1640,7 @@ notify_motion(struct wl_seat *seat, uint32_t time, wl_fixed_t x, wl_fixed_t y)
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if (output->zoom.active &&
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pixman_region32_contains_point(&output->region,
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ix, iy, NULL))
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weston_output_update_zoom(output, x, y, ZOOM_POINTER);
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weston_output_update_zoom(output, x, y, ZOOM_FOCUS_POINTER);
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weston_device_repick(seat);
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interface = seat->pointer->grab->interface;
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@ -2734,7 +2734,49 @@ weston_text_cursor_position_notify(struct weston_surface *surface,
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wl_fixed_to_int(global_y),
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NULL))
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weston_output_update_zoom(output, global_x, global_y,
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ZOOM_TEXT_CURSOR);
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ZOOM_FOCUS_TEXT);
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}
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static void
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weston_zoom_frame_z(struct weston_animation *animation,
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struct weston_output *output, uint32_t msecs)
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{
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if (animation->frame_counter == 0)
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output->zoom.spring_z.timestamp = msecs;
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weston_spring_update(&output->zoom.spring_z, msecs);
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if (output->zoom.spring_z.current > output->zoom.max_level)
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output->zoom.spring_z.current = output->zoom.max_level;
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else if (output->zoom.spring_z.current < 0.0)
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output->zoom.spring_z.current = 0.0;
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if (weston_spring_done(&output->zoom.spring_z)) {
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if (output->zoom.level <= 0.0)
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output->zoom.active = 0;
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output->zoom.spring_z.current = output->zoom.level;
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wl_list_remove(&animation->link);
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wl_list_init(&animation->link);
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}
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output->dirty = 1;
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weston_output_damage(output);
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}
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static void
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weston_zoom_transition(struct weston_output *output)
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{
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if (output->zoom.level != output->zoom.spring_z.current) {
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output->zoom.spring_z.target = output->zoom.level;
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if (wl_list_empty(&output->zoom.animation_z.link)) {
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output->zoom.animation_z.frame_counter = 0;
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wl_list_insert(output->animation_list.prev,
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&output->zoom.animation_z.link);
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}
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}
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output->dirty = 1;
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weston_output_damage(output);
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}
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WL_EXPORT void
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@ -2745,25 +2787,35 @@ weston_output_update_zoom(struct weston_output *output,
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{
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float global_x, global_y;
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float trans_min, trans_max;
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float ratio, level;
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if (output->zoom.level >= 1.0)
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level = output->zoom.spring_z.current;
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if (!output->zoom.active || level > output->zoom.max_level)
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return;
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output->zoom.type = type;
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output->zoom.fx = x;
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output->zoom.fy = y;
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global_x = wl_fixed_to_double(x);
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global_y = wl_fixed_to_double(y);
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output->zoom.trans_x =
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(((global_x - output->x) / output->current->width) *
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(output->zoom.level * 2)) - output->zoom.level;
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(level * 2)) - level;
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output->zoom.trans_y =
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(((global_y - output->y) / output->current->height) *
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(output->zoom.level * 2)) - output->zoom.level;
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(level * 2)) - level;
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if (type == ZOOM_TEXT_CURSOR) {
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output->zoom.trans_x *= 1 / output->zoom.level;
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output->zoom.trans_y *= 1 / output->zoom.level;
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if (type == ZOOM_FOCUS_TEXT) {
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ratio = 1 / level;
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trans_max = output->zoom.level * 2 - output->zoom.level;
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output->zoom.trans_x *= ratio;
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output->zoom.trans_y *= ratio;
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trans_max = level * 2 - level;
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trans_min = -trans_max;
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if (output->zoom.trans_x > trans_max)
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@ -2776,8 +2828,7 @@ weston_output_update_zoom(struct weston_output *output,
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output->zoom.trans_y = trans_min;
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}
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output->dirty = 1;
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weston_output_damage(output);
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weston_zoom_transition(output);
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}
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WL_EXPORT void
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@ -2799,10 +2850,14 @@ weston_output_update_matrix(struct weston_output *output)
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flip * 2.0 / (output->current->height + output->border.top + output->border.bottom), 1);
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if (output->zoom.active) {
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magnification = 1 / (1 - output->zoom.level);
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magnification = 1 / (1 - output->zoom.spring_z.current);
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weston_matrix_init(&camera);
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weston_matrix_init(&modelview);
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weston_matrix_translate(&camera, output->zoom.trans_x, flip * output->zoom.trans_y, 0);
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weston_output_update_zoom(output, output->zoom.fx,
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output->zoom.fy,
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output->zoom.type);
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weston_matrix_translate(&camera, output->zoom.trans_x,
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flip * output->zoom.trans_y, 0);
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weston_matrix_invert(&modelview, &camera);
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weston_matrix_scale(&modelview, magnification, magnification, 1.0);
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weston_matrix_multiply(&output->matrix, &modelview);
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@ -2840,10 +2895,15 @@ weston_output_init(struct weston_output *output, struct weston_compositor *c,
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wl_list_init(&output->read_pixels_list);
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output->zoom.active = 0;
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output->zoom.increment = 0.05;
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output->zoom.increment = 0.07;
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output->zoom.max_level = 0.95;
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output->zoom.level = 0.0;
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output->zoom.trans_x = 0.0;
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output->zoom.trans_y = 0.0;
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weston_spring_init(&output->zoom.spring_z, 250.0, 0.0, 0.0);
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output->zoom.spring_z.friction = 1000;
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output->zoom.animation_z.frame = weston_zoom_frame_z;
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wl_list_init(&output->zoom.animation_z.link);
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output->flags = flags;
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weston_output_move(output, x, y);
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@ -94,16 +94,37 @@ struct weston_border {
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int32_t left, right, top, bottom;
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};
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struct weston_animation {
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void (*frame)(struct weston_animation *animation,
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struct weston_output *output, uint32_t msecs);
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int frame_counter;
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struct wl_list link;
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};
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struct weston_spring {
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double k;
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double friction;
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double current;
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double target;
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double previous;
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uint32_t timestamp;
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};
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enum {
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ZOOM_POINTER,
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ZOOM_TEXT_CURSOR
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ZOOM_FOCUS_POINTER,
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ZOOM_FOCUS_TEXT
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};
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struct weston_output_zoom {
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int active;
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uint32_t type;
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float increment;
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float level;
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float max_level;
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wl_fixed_t fx, fy;
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float trans_x, trans_y;
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struct weston_animation animation_z;
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struct weston_spring spring_z;
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};
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/* bit compatible with drm definitions. */
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@ -228,22 +249,6 @@ struct weston_shader {
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GLint opaque_uniform;
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};
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struct weston_animation {
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void (*frame)(struct weston_animation *animation,
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struct weston_output *output, uint32_t msecs);
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int frame_counter;
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struct wl_list link;
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};
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struct weston_spring {
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double k;
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double friction;
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double current;
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double target;
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double previous;
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uint32_t timestamp;
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};
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enum {
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WESTON_COMPOSITOR_ACTIVE,
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WESTON_COMPOSITOR_IDLE, /* shell->unlock called on activity */
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18
src/shell.c
18
src/shell.c
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@ -1706,7 +1706,7 @@ do_zoom(struct wl_seat *seat, uint32_t time, uint32_t key, uint32_t axis,
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struct weston_seat *ws = (struct weston_seat *) seat;
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struct weston_compositor *compositor = ws->compositor;
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struct weston_output *output;
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float maximum_level, increment;
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float increment;
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wl_list_for_each(output, &compositor->output_list, link) {
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if (pixman_region32_contains_point(&output->region,
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@ -1723,23 +1723,21 @@ do_zoom(struct wl_seat *seat, uint32_t time, uint32_t key, uint32_t axis,
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else
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increment = 0;
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output->zoom.active = 1;
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output->zoom.level += increment;
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if (output->zoom.level <= 0.0) {
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output->zoom.active = 0;
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if (output->zoom.level < 0.0)
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output->zoom.level = 0.0;
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}
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else if (output->zoom.level > output->zoom.max_level)
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output->zoom.level = output->zoom.max_level;
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else
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output->zoom.active = 1;
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maximum_level = 1 - output->zoom.increment;
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if (output->zoom.level > maximum_level)
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output->zoom.level = maximum_level;
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output->zoom.spring_z.target = output->zoom.level;
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weston_output_update_zoom(output,
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seat->pointer->x,
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seat->pointer->y,
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ZOOM_POINTER);
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ZOOM_FOCUS_POINTER);
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}
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}
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}
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