eden-emu/SDL
20
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fixed mouse click count for relative mode and multiple mice

Browse source 
We'll track the click count separately for each input source, and the click distance is calculated using a point on an infinite plane that is pushed around by mouse motion deltas, unclamped by the window edge.
This commit is contained in:
Sam Lantinga 2024-12-23 18:12:50 -08:00
parent ed75d9d22a
commit 483e79bf82
2 changed files with 36 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

42
src/events/SDL_mouse.c
View file

@ -337,6 +337,7 @@ void SDL_RemoveMouse(SDL_MouseID mouseID, bool send_event)
for (int i = 0; i < mouse->num_sources; ++i) {
SDL_MouseInputSource *source = &mouse->sources[i];
if (source->mouseID == mouseID) {
SDL_free(source->clickstate);
if (i != mouse->num_sources - 1) {
SDL_memcpy(&mouse->sources[i], &mouse->sources[i + 1], (mouse->num_sources - i - 1) * sizeof(mouse->sources[i]));
}
@ -728,6 +729,9 @@ static void SDL_PrivateSendMouseMotion(Uint64 timestamp, SDL_Window *window, SDL
// Use unclamped values if we're getting events outside the window
mouse->last_x = relative ? mouse->x : x;
mouse->last_y = relative ? mouse->y : y;
mouse->click_motion_x += xrel;
mouse->click_motion_y += yrel;
}
// Move the mouse cursor, if needed
@ -795,29 +799,29 @@ static SDL_MouseInputSource *GetMouseInputSource(SDL_Mouse *mouse, SDL_MouseID m
mouse->sources = sources;
++mouse->num_sources;
source = &sources[mouse->num_sources - 1];
SDL_zerop(source);
source->mouseID = mouseID;
source->buttonstate = 0;
return source;
}
return NULL;
}
static SDL_MouseClickState *GetMouseClickState(SDL_Mouse *mouse, Uint8 button)
static SDL_MouseClickState *GetMouseClickState(SDL_MouseInputSource *source, Uint8 button)
{
if (button >= mouse->num_clickstates) {
if (button >= source->num_clickstates) {
int i, count = button + 1;
SDL_MouseClickState *clickstate = (SDL_MouseClickState *)SDL_realloc(mouse->clickstate, count * sizeof(*mouse->clickstate));
SDL_MouseClickState *clickstate = (SDL_MouseClickState *)SDL_realloc(source->clickstate, count * sizeof(*source->clickstate));
if (!clickstate) {
return NULL;
}
mouse->clickstate = clickstate;
source->clickstate = clickstate;
for (i = mouse->num_clickstates; i < count; ++i) {
SDL_zero(mouse->clickstate[i]);
for (i = source->num_clickstates; i < count; ++i) {
SDL_zero(source->clickstate[i]);
}
mouse->num_clickstates = count;
source->num_clickstates = count;
}
return &mouse->clickstate[button];
return &source->clickstate[button];
}
static void SDL_PrivateSendMouseButton(Uint64 timestamp, SDL_Window *window, SDL_MouseID mouseID, Uint8 button, bool down, int clicks)
@ -882,19 +886,19 @@ static void SDL_PrivateSendMouseButton(Uint64 timestamp, SDL_Window *window, SDL
source->buttonstate = buttonstate;
if (clicks < 0) {
SDL_MouseClickState *clickstate = GetMouseClickState(mouse, button);
SDL_MouseClickState *clickstate = GetMouseClickState(source, button);
if (clickstate) {
if (down) {
Uint64 now = SDL_GetTicks();
if (now >= (clickstate->last_timestamp + mouse->double_click_time) ||
SDL_fabs((double)mouse->x - clickstate->last_x) > mouse->double_click_radius ||
SDL_fabs((double)mouse->y - clickstate->last_y) > mouse->double_click_radius) {
SDL_fabs(mouse->click_motion_x - clickstate->click_motion_x) > mouse->double_click_radius ||
SDL_fabs(mouse->click_motion_y - clickstate->click_motion_y) > mouse->double_click_radius) {
clickstate->click_count = 0;
}
clickstate->last_timestamp = now;
clickstate->last_x = mouse->x;
clickstate->last_y = mouse->y;
clickstate->click_motion_x = mouse->click_motion_x;
clickstate->click_motion_y = mouse->click_motion_y;
if (clickstate->click_count < 255) {
++clickstate->click_count;
}
@ -1001,17 +1005,15 @@ void SDL_QuitMouse(void)
mouse->cur_cursor = NULL;
if (mouse->sources) {
for (int i = 0; i < mouse->num_sources; ++i) {
SDL_MouseInputSource *source = &mouse->sources[i];
SDL_free(source->clickstate);
}
SDL_free(mouse->sources);
mouse->sources = NULL;
}
mouse->num_sources = 0;
if (mouse->clickstate) {
SDL_free(mouse->clickstate);
mouse->clickstate = NULL;
}
mouse->num_clickstates = 0;
SDL_RemoveHintCallback(SDL_HINT_MOUSE_DOUBLE_CLICK_TIME,
SDL_MouseDoubleClickTimeChanged, mouse);

25
src/events/SDL_mouse_c.h
View file

@ -39,16 +39,21 @@ struct SDL_Cursor
typedef struct
{
SDL_MouseID mouseID;
Uint32 buttonstate;
} SDL_MouseInputSource;
Uint64 last_timestamp;
double click_motion_x;
double click_motion_y;
Uint8 click_count;
} SDL_MouseClickState;
typedef struct
{
float last_x, last_y;
Uint64 last_timestamp;
Uint8 click_count;
} SDL_MouseClickState;
SDL_MouseID mouseID;
Uint32 buttonstate;
// Data for double-click tracking
int num_clickstates;
SDL_MouseClickState *clickstate;
} SDL_MouseInputSource;
typedef struct
{
@ -93,6 +98,8 @@ typedef struct
float x_accu;
float y_accu;
float last_x, last_y; // the last reported x and y coordinates
double click_motion_x;
double click_motion_y;
bool has_position;
bool relative_mode;
bool relative_mode_warp_motion;
@ -123,10 +130,6 @@ typedef struct
int num_sources;
SDL_MouseInputSource *sources;
// Data for double-click tracking
int num_clickstates;
SDL_MouseClickState *clickstate;
SDL_Cursor *cursors;
SDL_Cursor *def_cursor;
SDL_Cursor *cur_cursor;