*initHEADmaster

1 files changed, 477 insertions, 0 deletions

diff --git a/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoamouse.m b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoamouse.m
new file mode 100644
index 0000000..c9db253
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+++ b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoamouse.m
@@ -0,0 +1,477 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#if SDL_VIDEO_DRIVER_COCOA
+
+#include "SDL_assert.h"
+#include "SDL_events.h"
+#include "SDL_cocoamouse.h"
+#include "SDL_cocoamousetap.h"
+#include "SDL_cocoavideo.h"
+
+#include "../../events/SDL_mouse_c.h"
+
+/* #define DEBUG_COCOAMOUSE */
+
+#ifdef DEBUG_COCOAMOUSE
+#define DLog(fmt, ...) printf("%s: " fmt "\n", __func__, ##__VA_ARGS__)
+#else
+#define DLog(...) do { } while (0)
+#endif
+
+@implementation NSCursor (InvisibleCursor)
++ (NSCursor *)invisibleCursor
+{
+    static NSCursor *invisibleCursor = NULL;
+    if (!invisibleCursor) {
+        /* RAW 16x16 transparent GIF */
+        static unsigned char cursorBytes[] = {
+            0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x10, 0x00, 0x10, 0x00, 0x80,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0xF9, 0x04,
+            0x01, 0x00, 0x00, 0x01, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x10,
+            0x00, 0x10, 0x00, 0x00, 0x02, 0x0E, 0x8C, 0x8F, 0xA9, 0xCB, 0xED,
+            0x0F, 0xA3, 0x9C, 0xB4, 0xDA, 0x8B, 0xB3, 0x3E, 0x05, 0x00, 0x3B
+        };
+
+        NSData *cursorData = [NSData dataWithBytesNoCopy:&cursorBytes[0]
+                                                  length:sizeof(cursorBytes)
+                                            freeWhenDone:NO];
+        NSImage *cursorImage = [[[NSImage alloc] initWithData:cursorData] autorelease];
+        invisibleCursor = [[NSCursor alloc] initWithImage:cursorImage
+                                                  hotSpot:NSZeroPoint];
+    }
+
+    return invisibleCursor;
+}
+@end
+
+
+static SDL_Cursor *
+Cocoa_CreateDefaultCursor()
+{ @autoreleasepool
+{
+    NSCursor *nscursor;
+    SDL_Cursor *cursor = NULL;
+
+    nscursor = [NSCursor arrowCursor];
+
+    if (nscursor) {
+        cursor = SDL_calloc(1, sizeof(*cursor));
+        if (cursor) {
+            cursor->driverdata = nscursor;
+            [nscursor retain];
+        }
+    }
+
+    return cursor;
+}}
+
+static SDL_Cursor *
+Cocoa_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
+{ @autoreleasepool
+{
+    NSImage *nsimage;
+    NSCursor *nscursor = NULL;
+    SDL_Cursor *cursor = NULL;
+
+    nsimage = Cocoa_CreateImage(surface);
+    if (nsimage) {
+        nscursor = [[NSCursor alloc] initWithImage: nsimage hotSpot: NSMakePoint(hot_x, hot_y)];
+    }
+
+    if (nscursor) {
+        cursor = SDL_calloc(1, sizeof(*cursor));
+        if (cursor) {
+            cursor->driverdata = nscursor;
+        } else {
+            [nscursor release];
+        }
+    }
+
+    return cursor;
+}}
+
+static SDL_Cursor *
+Cocoa_CreateSystemCursor(SDL_SystemCursor id)
+{ @autoreleasepool
+{
+    NSCursor *nscursor = NULL;
+    SDL_Cursor *cursor = NULL;
+
+    switch(id) {
+    case SDL_SYSTEM_CURSOR_ARROW:
+        nscursor = [NSCursor arrowCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_IBEAM:
+        nscursor = [NSCursor IBeamCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_WAIT:
+        nscursor = [NSCursor arrowCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_CROSSHAIR:
+        nscursor = [NSCursor crosshairCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_WAITARROW:
+        nscursor = [NSCursor arrowCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_SIZENWSE:
+    case SDL_SYSTEM_CURSOR_SIZENESW:
+        nscursor = [NSCursor closedHandCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_SIZEWE:
+        nscursor = [NSCursor resizeLeftRightCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_SIZENS:
+        nscursor = [NSCursor resizeUpDownCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_SIZEALL:
+        nscursor = [NSCursor closedHandCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_NO:
+        nscursor = [NSCursor operationNotAllowedCursor];
+        break;
+    case SDL_SYSTEM_CURSOR_HAND:
+        nscursor = [NSCursor pointingHandCursor];
+        break;
+    default:
+        SDL_assert(!"Unknown system cursor");
+        return NULL;
+    }
+
+    if (nscursor) {
+        cursor = SDL_calloc(1, sizeof(*cursor));
+        if (cursor) {
+            /* We'll free it later, so retain it here */
+            [nscursor retain];
+            cursor->driverdata = nscursor;
+        }
+    }
+
+    return cursor;
+}}
+
+static void
+Cocoa_FreeCursor(SDL_Cursor * cursor)
+{ @autoreleasepool
+{
+    NSCursor *nscursor = (NSCursor *)cursor->driverdata;
+
+    [nscursor release];
+    SDL_free(cursor);
+}}
+
+static int
+Cocoa_ShowCursor(SDL_Cursor * cursor)
+{ @autoreleasepool
+{
+    SDL_VideoDevice *device = SDL_GetVideoDevice();
+    SDL_Window *window = (device ? device->windows : NULL);
+    for (; window != NULL; window = window->next) {
+        SDL_WindowData *driverdata = (SDL_WindowData *)window->driverdata;
+        if (driverdata) {
+            [driverdata->nswindow performSelectorOnMainThread:@selector(invalidateCursorRectsForView:)
+                                                   withObject:[driverdata->nswindow contentView]
+                                                waitUntilDone:NO];
+        }
+    }
+    return 0;
+}}
+
+static SDL_Window *
+SDL_FindWindowAtPoint(const int x, const int y)
+{
+    const SDL_Point pt = { x, y };
+    SDL_Window *i;
+    for (i = SDL_GetVideoDevice()->windows; i; i = i->next) {
+        const SDL_Rect r = { i->x, i->y, i->w, i->h };
+        if (SDL_PointInRect(&pt, &r)) {
+            return i;
+        }
+    }
+
+    return NULL;
+}
+
+static int
+Cocoa_WarpMouseGlobal(int x, int y)
+{
+    SDL_Mouse *mouse = SDL_GetMouse();
+    if (mouse->focus) {
+        SDL_WindowData *data = (SDL_WindowData *) mouse->focus->driverdata;
+        if ([data->listener isMoving]) {
+            DLog("Postponing warp, window being moved.");
+            [data->listener setPendingMoveX:x Y:y];
+            return 0;
+        }
+    }
+    const CGPoint point = CGPointMake((float)x, (float)y);
+
+    Cocoa_HandleMouseWarp(point.x, point.y);
+
+    CGWarpMouseCursorPosition(point);
+
+    /* CGWarpMouse causes a short delay by default, which is preventable by
+     * Calling this directly after. CGSetLocalEventsSuppressionInterval can also
+     * prevent it, but it's deprecated as of OS X 10.6.
+     */
+    if (!mouse->relative_mode) {
+        CGAssociateMouseAndMouseCursorPosition(YES);
+    }
+
+    /* CGWarpMouseCursorPosition doesn't generate a window event, unlike our
+     * other implementations' APIs. Send what's appropriate.
+     */
+    if (!mouse->relative_mode) {
+        SDL_Window *win = SDL_FindWindowAtPoint(x, y);
+        SDL_SetMouseFocus(win);
+        if (win) {
+            SDL_assert(win == mouse->focus);
+            SDL_SendMouseMotion(win, mouse->mouseID, 0, x - win->x, y - win->y);
+        }
+    }
+
+    return 0;
+}
+
+static void
+Cocoa_WarpMouse(SDL_Window * window, int x, int y)
+{
+    Cocoa_WarpMouseGlobal(x + window->x, y + window->y);
+}
+
+static int
+Cocoa_SetRelativeMouseMode(SDL_bool enabled)
+{
+    /* We will re-apply the relative mode when the window gets focus, if it
+     * doesn't have focus right now.
+     */
+    SDL_Window *window = SDL_GetMouseFocus();
+    if (!window) {
+      return 0;
+    }
+
+    /* We will re-apply the relative mode when the window finishes being moved,
+     * if it is being moved right now.
+     */
+    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
+    if ([data->listener isMoving]) {
+        return 0;
+    }
+
+    CGError result;
+    if (enabled) {
+        DLog("Turning on.");
+        result = CGAssociateMouseAndMouseCursorPosition(NO);
+    } else {
+        DLog("Turning off.");
+        result = CGAssociateMouseAndMouseCursorPosition(YES);
+    }
+    if (result != kCGErrorSuccess) {
+        return SDL_SetError("CGAssociateMouseAndMouseCursorPosition() failed");
+    }
+
+    /* The hide/unhide calls are redundant most of the time, but they fix
+     * https://bugzilla.libsdl.org/show_bug.cgi?id=2550
+     */
+    if (enabled) {
+        [NSCursor hide];
+    } else {
+        [NSCursor unhide];
+    }
+    return 0;
+}
+
+static int
+Cocoa_CaptureMouse(SDL_Window *window)
+{
+    /* our Cocoa event code already tracks the mouse outside the window,
+        so all we have to do here is say "okay" and do what we always do. */
+    return 0;
+}
+
+static Uint32
+Cocoa_GetGlobalMouseState(int *x, int *y)
+{
+    const NSUInteger cocoaButtons = [NSEvent pressedMouseButtons];
+    const NSPoint cocoaLocation = [NSEvent mouseLocation];
+    Uint32 retval = 0;
+
+    for (NSScreen *screen in [NSScreen screens]) {
+        NSRect frame = [screen frame];
+        if (NSMouseInRect(cocoaLocation, frame, NO)) {
+            *x = (int) cocoaLocation.x;
+            *y = (int) ((frame.origin.y + frame.size.height) - cocoaLocation.y);
+            break;
+        }
+    }
+
+    retval |= (cocoaButtons & (1 << 0)) ? SDL_BUTTON_LMASK : 0;
+    retval |= (cocoaButtons & (1 << 1)) ? SDL_BUTTON_RMASK : 0;
+    retval |= (cocoaButtons & (1 << 2)) ? SDL_BUTTON_MMASK : 0;
+    retval |= (cocoaButtons & (1 << 3)) ? SDL_BUTTON_X1MASK : 0;
+    retval |= (cocoaButtons & (1 << 4)) ? SDL_BUTTON_X2MASK : 0;
+
+    return retval;
+}
+
+void
+Cocoa_InitMouse(_THIS)
+{
+    SDL_Mouse *mouse = SDL_GetMouse();
+
+    mouse->driverdata = SDL_calloc(1, sizeof(SDL_MouseData));
+
+    mouse->CreateCursor = Cocoa_CreateCursor;
+    mouse->CreateSystemCursor = Cocoa_CreateSystemCursor;
+    mouse->ShowCursor = Cocoa_ShowCursor;
+    mouse->FreeCursor = Cocoa_FreeCursor;
+    mouse->WarpMouse = Cocoa_WarpMouse;
+    mouse->WarpMouseGlobal = Cocoa_WarpMouseGlobal;
+    mouse->SetRelativeMouseMode = Cocoa_SetRelativeMouseMode;
+    mouse->CaptureMouse = Cocoa_CaptureMouse;
+    mouse->GetGlobalMouseState = Cocoa_GetGlobalMouseState;
+
+    SDL_SetDefaultCursor(Cocoa_CreateDefaultCursor());
+
+    Cocoa_InitMouseEventTap(mouse->driverdata);
+
+    SDL_MouseData *driverdata = (SDL_MouseData*)mouse->driverdata;
+    const NSPoint location =  [NSEvent mouseLocation];
+    driverdata->lastMoveX = location.x;
+    driverdata->lastMoveY = location.y;
+}
+
+void
+Cocoa_HandleMouseEvent(_THIS, NSEvent *event)
+{
+    switch ([event type]) {
+        case NSEventTypeMouseMoved:
+        case NSEventTypeLeftMouseDragged:
+        case NSEventTypeRightMouseDragged:
+        case NSEventTypeOtherMouseDragged:
+            break;
+
+        default:
+            /* Ignore any other events. */
+            return;
+    }
+
+    SDL_Mouse *mouse = SDL_GetMouse();
+    SDL_MouseData *driverdata = (SDL_MouseData*)mouse->driverdata;
+    if (!driverdata) {
+        return;  /* can happen when returning from fullscreen Space on shutdown */
+    }
+
+    const SDL_bool seenWarp = driverdata->seenWarp;
+    driverdata->seenWarp = NO;
+
+    const NSPoint location =  [NSEvent mouseLocation];
+    const CGFloat lastMoveX = driverdata->lastMoveX;
+    const CGFloat lastMoveY = driverdata->lastMoveY;
+    driverdata->lastMoveX = location.x;
+    driverdata->lastMoveY = location.y;
+    DLog("Last seen mouse: (%g, %g)", location.x, location.y);
+
+    /* Non-relative movement is handled in -[Cocoa_WindowListener mouseMoved:] */
+    if (!mouse->relative_mode) {
+        return;
+    }
+
+    /* Ignore events that aren't inside the client area (i.e. title bar.) */
+    if ([event window]) {
+        NSRect windowRect = [[[event window] contentView] frame];
+        if (!NSMouseInRect([event locationInWindow], windowRect, NO)) {
+            return;
+        }
+    }
+
+    float deltaX = [event deltaX];
+    float deltaY = [event deltaY];
+
+    if (seenWarp) {
+        deltaX += (lastMoveX - driverdata->lastWarpX);
+        deltaY += ((CGDisplayPixelsHigh(kCGDirectMainDisplay) - lastMoveY) - driverdata->lastWarpY);
+
+        DLog("Motion was (%g, %g), offset to (%g, %g)", [event deltaX], [event deltaY], deltaX, deltaY);
+    }
+
+    SDL_SendMouseMotion(mouse->focus, mouse->mouseID, 1, (int)deltaX, (int)deltaY);
+}
+
+void
+Cocoa_HandleMouseWheel(SDL_Window *window, NSEvent *event)
+{
+    SDL_Mouse *mouse = SDL_GetMouse();
+
+    CGFloat x = -[event deltaX];
+    CGFloat y = [event deltaY];
+    SDL_MouseWheelDirection direction = SDL_MOUSEWHEEL_NORMAL;
+
+    if ([event respondsToSelector:@selector(isDirectionInvertedFromDevice)]) {
+        if ([event isDirectionInvertedFromDevice] == YES) {
+            direction = SDL_MOUSEWHEEL_FLIPPED;
+        }
+    }
+
+    if (x > 0) {
+        x = SDL_ceil(x);
+    } else if (x < 0) {
+        x = SDL_floor(x);
+    }
+    if (y > 0) {
+        y = SDL_ceil(y);
+    } else if (y < 0) {
+        y = SDL_floor(y);
+    }
+    SDL_SendMouseWheel(window, mouse->mouseID, x, y, direction);
+}
+
+void
+Cocoa_HandleMouseWarp(CGFloat x, CGFloat y)
+{
+    /* This makes Cocoa_HandleMouseEvent ignore the delta caused by the warp,
+     * since it gets included in the next movement event.
+     */
+    SDL_MouseData *driverdata = (SDL_MouseData*)SDL_GetMouse()->driverdata;
+    driverdata->lastWarpX = x;
+    driverdata->lastWarpY = y;
+    driverdata->seenWarp = SDL_TRUE;
+
+    DLog("(%g, %g)", x, y);
+}
+
+void
+Cocoa_QuitMouse(_THIS)
+{
+    SDL_Mouse *mouse = SDL_GetMouse();
+    if (mouse) {
+        if (mouse->driverdata) {
+            Cocoa_QuitMouseEventTap(((SDL_MouseData*)mouse->driverdata));
+        }
+
+        SDL_free(mouse->driverdata);
+    }
+}
+
+#endif /* SDL_VIDEO_DRIVER_COCOA */
+
+/* vi: set ts=4 sw=4 expandtab: */