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Simulate tilt multitouch event by pressing Shift

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PR #4529 <https://github.com/Genymobile/scrcpy/pull/4529>

Signed-off-by: Romain Vimont <rom@rom1v.com>
This commit is contained in:
Till Rathmann
2023-12-13 17:04:02 +01:00
committed by Romain Vimont
parent 604dfd7c6b
commit d2ed4510a7
6 changed files with 52 additions and 13 deletions
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40
app/src/input_manager.c
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@@ -76,6 +76,8 @@ sc_input_manager_init(struct sc_input_manager *im,
im->sdl_shortcut_mods.count = shortcut_mods->count;
im->vfinger_down = false;
im->vfinger_invert_x = false;
im->vfinger_invert_y = false;
im->last_keycode = SDLK_UNKNOWN;
im->last_mod = 0;
@@ -347,9 +349,14 @@ simulate_virtual_finger(struct sc_input_manager *im,
}
static struct sc_point
inverse_point(struct sc_point point, struct sc_size size) {
point.x = size.width - point.x;
point.y = size.height - point.y;
inverse_point(struct sc_point point, struct sc_size size,
bool invert_x, bool invert_y) {
if (invert_x) {
point.x = size.width - point.x;
}
if (invert_y) {
point.y = size.height - point.y;
}
return point;
}
@@ -605,7 +612,9 @@ sc_input_manager_process_mouse_motion(struct sc_input_manager *im,
struct sc_point mouse =
sc_screen_convert_window_to_frame_coords(im->screen, event->x,
event->y);
struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size,
im->vfinger_invert_x,
im->vfinger_invert_y);
simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
}
}
@@ -726,7 +735,7 @@ sc_input_manager_process_mouse_button(struct sc_input_manager *im,
return;
}
// Pinch-to-zoom simulation.
// Pinch-to-zoom, rotate and tilt simulation.
//
// If Ctrl is hold when the left-click button is pressed, then
// pinch-to-zoom mode is enabled: on every mouse event until the left-click
@@ -735,14 +744,29 @@ sc_input_manager_process_mouse_button(struct sc_input_manager *im,
//
// In other words, the center of the rotation/scaling is the center of the
// screen.
#define CTRL_PRESSED (SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL))
//
// To simulate a tilt gesture (a vertical slide with two fingers), Shift
// can be used instead of Ctrl. The "virtual finger" has a position
// inverted with respect to the vertical axis of symmetry in the middle of
// the screen.
const SDL_Keymod keymod = SDL_GetModState();
const bool ctrl_pressed = keymod & KMOD_CTRL;
const bool shift_pressed = keymod & KMOD_SHIFT;
if (event->button == SDL_BUTTON_LEFT &&
((down && !im->vfinger_down && CTRL_PRESSED) ||
((down && !im->vfinger_down &&
((ctrl_pressed && !shift_pressed) ||
(!ctrl_pressed && shift_pressed))) ||
(!down && im->vfinger_down))) {
struct sc_point mouse =
sc_screen_convert_window_to_frame_coords(im->screen, event->x,
event->y);
struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
if (down) {
im->vfinger_invert_x = ctrl_pressed || shift_pressed;
im->vfinger_invert_y = ctrl_pressed;
}
struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size,
im->vfinger_invert_x,
im->vfinger_invert_y);
enum android_motionevent_action action = down
? AMOTION_EVENT_ACTION_DOWN
: AMOTION_EVENT_ACTION_UP;