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Implemented SDL_SetWindowMouseRect() on macOS

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Sam Lantinga 2021-11-08 20:35:12 -08:00
parent 037030a7a2
commit 4db546b092
5 changed files with 104 additions and 34 deletions
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1
src/video/cocoa/SDL_cocoavideo.m
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@ -103,6 +103,7 @@ Cocoa_CreateDevice(int devindex)
device->SetWindowGammaRamp = Cocoa_SetWindowGammaRamp;
device->GetWindowGammaRamp = Cocoa_GetWindowGammaRamp;
device->GetWindowICCProfile = Cocoa_GetWindowICCProfile;
device->SetWindowMouseRect = Cocoa_SetWindowMouseRect;
device->SetWindowMouseGrab = Cocoa_SetWindowMouseGrab;
device->SetWindowKeyboardGrab = Cocoa_SetWindowKeyboardGrab;
device->DestroyWindow = Cocoa_DestroyWindow;

2
src/video/cocoa/SDL_cocoawindow.h
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@ -124,6 +124,7 @@ struct SDL_WindowData
SDL_bool created;
SDL_bool inWindowFullscreenTransition;
NSInteger flash_request;
SDL_Rect mouse_rect;
Cocoa_WindowListener *listener;
struct SDL_VideoData *videodata;
#if SDL_VIDEO_OPENGL_EGL
@ -154,6 +155,7 @@ extern void Cocoa_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDispl
extern int Cocoa_SetWindowGammaRamp(_THIS, SDL_Window * window, const Uint16 * ramp);
extern void* Cocoa_GetWindowICCProfile(_THIS, SDL_Window * window, size_t * size);
extern int Cocoa_GetWindowGammaRamp(_THIS, SDL_Window * window, Uint16 * ramp);
extern int Cocoa_SetWindowMouseRect(_THIS, SDL_Window * window, const SDL_Rect * rect);
extern void Cocoa_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
extern void Cocoa_DestroyWindow(_THIS, SDL_Window * window);
extern SDL_bool Cocoa_GetWindowWMInfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info);

131
src/video/cocoa/SDL_cocoawindow.m
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@ -322,6 +322,67 @@ SetWindowStyle(SDL_Window * window, NSUInteger style)
return SDL_TRUE;
}
static SDL_bool
ShouldAdjustCoordinatesForGrab(SDL_Window * window)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
if (!data || [data->listener isMovingOrFocusClickPending]) {
return SDL_FALSE;
}
if (!(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
return SDL_FALSE;
}
if ((window->flags & SDL_WINDOW_MOUSE_GRABBED) || (data->mouse_rect.w > 0 && data->mouse_rect.h > 0)) {
return SDL_TRUE;
}
return SDL_FALSE;
}
static SDL_bool
AdjustCoordinatesForGrab(SDL_Window * window, int x, int y, CGPoint *adjusted)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
if (data->mouse_rect.w > 0 && data->mouse_rect.h > 0) {
SDL_Rect window_rect;
SDL_Rect mouse_rect;
window_rect.x = 0;
window_rect.y = 0;
window_rect.w = window->w;
window_rect.h = window->h;
if (SDL_IntersectRect(&data->mouse_rect, &window_rect, &mouse_rect)) {
int left = window->x + mouse_rect.x;
int right = left + mouse_rect.w - 1;
int top = window->y + mouse_rect.y;
int bottom = top + mouse_rect.h - 1;
if (x < left || x > right || y < top || y > bottom) {
adjusted->x = SDL_clamp(x, left, right);
adjusted->y = SDL_clamp(y, top, bottom);
return SDL_TRUE;
}
return SDL_FALSE;
}
}
if ((window->flags & SDL_WINDOW_MOUSE_GRABBED) != 0) {
int left = window->x;
int right = left + window->w - 1;
int top = window->y;
int bottom = top + window->h - 1;
if (x < left || x > right || y < top || y > bottom) {
adjusted->x = SDL_clamp(x, left, right);
adjusted->y = SDL_clamp(y, top, bottom);
return SDL_TRUE;
}
}
return SDL_FALSE;
}
@implementation Cocoa_WindowListener
@ -1156,28 +1217,12 @@ SetWindowStyle(SDL_Window * window, NSUInteger style)
x = (int)point.x;
y = (int)(window->h - point.y);
if (window->flags & SDL_WINDOW_MOUSE_GRABBED) {
if (x < 0 || x >= window->w || y < 0 || y >= window->h) {
if (x < 0) {
x = 0;
} else if (x >= window->w) {
x = window->w - 1;
}
if (y < 0) {
y = 0;
} else if (y >= window->h) {
y = window->h - 1;
}
CGPoint cgpoint;
cgpoint.x = window->x + x;
cgpoint.y = window->y + y;
CGDisplayMoveCursorToPoint(kCGDirectMainDisplay, cgpoint);
CGAssociateMouseAndMouseCursorPosition(YES);
Cocoa_HandleMouseWarp(cgpoint.x, cgpoint.y);
}
CGPoint cgpoint;
if (ShouldAdjustCoordinatesForGrab(window) &&
AdjustCoordinatesForGrab(window, window->x + x, window->y + y, &cgpoint)) {
Cocoa_HandleMouseWarp(cgpoint.x, cgpoint.y);
CGDisplayMoveCursorToPoint(kCGDirectMainDisplay, cgpoint);
CGAssociateMouseAndMouseCursorPosition(YES);
}
SDL_SendMouseMotion(window, mouseID, 0, x, y);
@ -2048,27 +2093,49 @@ Cocoa_GetWindowGammaRamp(_THIS, SDL_Window * window, Uint16 * ramp)
return 0;
}
int
Cocoa_SetWindowMouseRect(_THIS, SDL_Window * window, const SDL_Rect * rect)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
if (rect) {
SDL_memcpy(&data->mouse_rect, rect, sizeof(*rect));
} else {
SDL_zero(data->mouse_rect);
}
/* Move the cursor to the nearest point in the mouse rect */
if (ShouldAdjustCoordinatesForGrab(window)) {
int x, y;
CGPoint cgpoint;
SDL_GetGlobalMouseState(&x, &y);
if (AdjustCoordinatesForGrab(window, x, y, &cgpoint)) {
Cocoa_HandleMouseWarp(cgpoint.x, cgpoint.y);
CGDisplayMoveCursorToPoint(kCGDirectMainDisplay, cgpoint);
}
}
return 0;
}
void
Cocoa_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
/* Move the cursor to the nearest point in the window */
if (grabbed && data && ![data->listener isMovingOrFocusClickPending]) {
if (ShouldAdjustCoordinatesForGrab(window)) {
int x, y;
CGPoint cgpoint;
SDL_GetMouseState(&x, &y);
cgpoint.x = window->x + x;
cgpoint.y = window->y + y;
Cocoa_HandleMouseWarp(cgpoint.x, cgpoint.y);
DLog("Returning cursor to (%g, %g)", cgpoint.x, cgpoint.y);
CGDisplayMoveCursorToPoint(kCGDirectMainDisplay, cgpoint);
SDL_GetGlobalMouseState(&x, &y);
if (AdjustCoordinatesForGrab(window, x, y, &cgpoint)) {
Cocoa_HandleMouseWarp(cgpoint.x, cgpoint.y);
CGDisplayMoveCursorToPoint(kCGDirectMainDisplay, cgpoint);
}
}
if ( data && (window->flags & SDL_WINDOW_FULLSCREEN) ) {
if (data && (window->flags & SDL_WINDOW_FULLSCREEN)) {
if (SDL_ShouldAllowTopmost() && (window->flags & SDL_WINDOW_INPUT_FOCUS)
&& ![data->listener isInFullscreenSpace]) {
/* OpenGL is rendering to the window, so make it visible! */

2
src/video/windows/SDL_windowswindow.c
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@ -815,7 +815,7 @@ void WIN_UngrabKeyboard(SDL_Window *window)
}
int
WIN_SetWindowMouseRect(_THIS, SDL_Window * window, SDL_Rect * rect)
WIN_SetWindowMouseRect(_THIS, SDL_Window * window, const SDL_Rect * rect)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

2
src/video/windows/SDL_windowswindow.h
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@ -82,7 +82,7 @@ extern void WIN_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay
extern int WIN_SetWindowGammaRamp(_THIS, SDL_Window * window, const Uint16 * ramp);
extern void* WIN_GetWindowICCProfile(_THIS, SDL_Window * window, size_t * size);
extern int WIN_GetWindowGammaRamp(_THIS, SDL_Window * window, Uint16 * ramp);
extern int WIN_SetWindowMouseRect(_THIS, SDL_Window * window, SDL_Rect * rect);
extern int WIN_SetWindowMouseRect(_THIS, SDL_Window * window, const SDL_Rect * rect);
extern void WIN_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
extern void WIN_SetWindowKeyboardGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
extern void WIN_DestroyWindow(_THIS, SDL_Window * window);