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rootston: rotate views!

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emersion 2017-10-03 21:06:32 +02:00
parent a40d38798c
commit 9b88f25208
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GPG key ID: 0FDE7BE0E88F5E48
3 changed files with 52 additions and 14 deletions
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44
rootston/cursor.c
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@ -1,6 +1,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <math.h>
// TODO: BSD et al
#include <linux/input-event-codes.h>
#include <wayland-server.h>
@ -25,15 +26,16 @@ const struct roots_input_event *get_input_event(struct roots_input *input,
void view_begin_move(struct roots_input *input, struct wlr_cursor *cursor,
struct roots_view *view) {
input->mode = ROOTS_CURSOR_MOVE;
input->offs_x = cursor->x - view->x;
input->offs_y = cursor->y - view->y;
input->offs_x = cursor->x;
input->offs_y = cursor->y;
input->view_x = view->x;
input->view_y = view->y;
wlr_seat_pointer_clear_focus(input->wl_seat);
}
void view_begin_resize(struct roots_input *input, struct wlr_cursor *cursor,
struct roots_view *view, uint32_t edges) {
input->mode = ROOTS_CURSOR_RESIZE;
wlr_log(L_DEBUG, "begin resize");
input->offs_x = cursor->x;
input->offs_y = cursor->y;
input->view_x = view->x;
@ -46,6 +48,15 @@ void view_begin_resize(struct roots_input *input, struct wlr_cursor *cursor,
wlr_seat_pointer_clear_focus(input->wl_seat);
}
void view_begin_rotate(struct roots_input *input, struct wlr_cursor *cursor,
struct roots_view *view) {
input->mode = ROOTS_CURSOR_ROTATE;
input->offs_x = cursor->x;
input->offs_y = cursor->y;
input->view_rotation = view->rotation;
wlr_seat_pointer_clear_focus(input->wl_seat);
}
void cursor_update_position(struct roots_input *input, uint32_t time) {
struct roots_desktop *desktop = input->server->desktop;
struct roots_view *view;
@ -64,16 +75,18 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
break;
case ROOTS_CURSOR_MOVE:
if (input->active_view) {
input->active_view->x = input->cursor->x - input->offs_x;
input->active_view->y = input->cursor->y - input->offs_y;
int dx = input->cursor->x - input->offs_x,
dy = input->cursor->y - input->offs_y;
input->active_view->x = input->view_x + dx;
input->active_view->y = input->view_y + dy;
}
break;
case ROOTS_CURSOR_RESIZE:
if (input->active_view) {
int dx = input->cursor->x - input->offs_x;
int dy = input->cursor->y - input->offs_y;
int width = input->view_width;
int height = input->view_height;
int dx = input->cursor->x - input->offs_x,
dy = input->cursor->y - input->offs_y;
int width = input->view_width,
height = input->view_height;
if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_TOP) {
input->active_view->y = input->view_y + dy;
height -= dy;
@ -92,6 +105,17 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
}
break;
case ROOTS_CURSOR_ROTATE:
if (input->active_view) {
struct roots_view *view = input->active_view;
int ox = view->x + view->wlr_surface->current->width/2,
oy = view->y + view->wlr_surface->current->height/2;
int ux = input->offs_x - ox,
uy = input->offs_y - oy;
int vx = input->cursor->x - ox,
vy = input->cursor->y - oy;
float angle = atan2(vx*uy - vy*ux, vx*ux + vy*uy);
view->rotation = input->view_rotation + angle;
}
break;
}
}
@ -175,6 +199,8 @@ static void do_cursor_button_press(struct roots_input *input,
ROOTS_CURSOR_RESIZE_EDGE_RIGHT |
ROOTS_CURSOR_RESIZE_EDGE_BOTTOM);
break;
case BTN_MIDDLE:
view_begin_rotate(input, cursor, view);
}
return;
}