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/* gdkcursor-macos.c
*
* Copyright (C) 2005-2007 Imendio AB
* Copyright (C) 2020 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include "gdkmacoscursor-private.h"
/* OS X only exports a number of cursor types in its public NSCursor interface.
* By overriding the private _coreCursorType method, we can tell OS X to load
* one of its internal cursors instead (since cursor images are loaded on demand
* instead of in advance). WebKit does this too.
*/
@interface gdkCoreCursor : NSCursor {
@private
int type;
BOOL override;
}
@end
@implementation gdkCoreCursor
- (long long)_coreCursorType
{
if (self->override)
return self->type;
return [super _coreCursorType];
}
#define CUSTOM_CURSOR_CTOR(name, id) \
+ (gdkCoreCursor *)name \
{ \
gdkCoreCursor *obj; \
obj = [self new]; \
if (obj) { \
obj->override = YES; \
obj->type = id; \
} \
return obj; \
}
CUSTOM_CURSOR_CTOR(gdkHelpCursor, 40)
CUSTOM_CURSOR_CTOR(gdkProgressCursor, 4)
/* TODO OS X doesn't seem to have a way to get this. There is an undocumented
* method +[NSCursor _waitCursor], but it doesn't actually return this cursor,
* but rather some odd low-quality non-animating version of this cursor. Use
* the progress cursor instead for now.
*/
CUSTOM_CURSOR_CTOR(gdkWaitCursor, 4)
CUSTOM_CURSOR_CTOR(gdkAliasCursor, 2)
CUSTOM_CURSOR_CTOR(gdkMoveCursor, 39)
/* TODO OS X doesn't seem to provide one; copy the move cursor for now
* since it looks similar to what we want. */
CUSTOM_CURSOR_CTOR(gdkAllScrollCursor, 39)
CUSTOM_CURSOR_CTOR(gdkNEResizeCursor, 29)
CUSTOM_CURSOR_CTOR(gdkNWResizeCursor, 33)
CUSTOM_CURSOR_CTOR(gdkSEResizeCursor, 35)
CUSTOM_CURSOR_CTOR(gdkSWResizeCursor, 37)
CUSTOM_CURSOR_CTOR(gdkEWResizeCursor, 28)
CUSTOM_CURSOR_CTOR(gdkNSResizeCursor, 32)
CUSTOM_CURSOR_CTOR(gdkNESWResizeCursor, 30)
CUSTOM_CURSOR_CTOR(gdkNWSEResizeCursor, 34)
CUSTOM_CURSOR_CTOR(gdkZoomInCursor, 42)
CUSTOM_CURSOR_CTOR(gdkZoomOutCursor, 43)
#undef CUSTOM_CURSOR_CTOR
@end
struct CursorsByName {
const char *name;
NSString *selector;
};
static const struct CursorsByName cursors_by_name[] = {
/* Link & Status */
{ "context-menu", @"contextualMenuCursor" },
{ "help", @"gdkHelpCursor" },
{ "pointer", @"pointingHandCursor" },
{ "progress", @"gdkProgressCursor" },
{ "wait", @"gdkWaitCursor" },
/* Selection */
{ "cell", @"crosshairCursor" },
{ "crosshair", @"crosshairCursor" },
{ "text", @"IBeamCursor" },
{ "vertical-text", @"IBeamCursorForVerticalLayout" },
/* Drag & Drop */
{ "alias", @"gdkAliasCursor" },
{ "copy", @"dragCopyCursor" },
{ "move", @"gdkMoveCursor" },
{ "no-drop", @"operationNotAllowedCursor" },
{ "not-allowed", @"operationNotAllowedCursor" },
{ "grab", @"openHandCursor" },
{ "grabbing", @"closedHandCursor" },
/* Resize & Scrolling */
{ "all-scroll", @"gdkAllScrollCursor" },
{ "col-resize", @"resizeLeftRightCursor" },
{ "row-resize", @"resizeUpDownCursor" },
/* Undocumented cursors to match native resizing */
{ "e-resize", @"_windowResizeEastWestCursor" },
{ "w-resize", @"_windowResizeEastWestCursor" },
{ "n-resize", @"_windowResizeNorthSouthCursor" },
{ "s-resize", @"_windowResizeNorthSouthCursor" },
{ "ne-resize", @"gdkNEResizeCursor" },
{ "nw-resize", @"gdkNWResizeCursor" },
{ "se-resize", @"gdkSEResizeCursor" },
{ "sw-resize", @"gdkSWResizeCursor" },
{ "ew-resize", @"gdkEWResizeCursor" },
{ "ns-resize", @"gdkNSResizeCursor" },
{ "nesw-resize", @"gdkNESWResizeCursor" },
{ "nwse-resize", @"gdkNWSEResizeCursor" },
/* Zoom */
{ "zoom-in", @"gdkZoomInCursor" },
{ "zoom-out", @"gdkZoomOutCursor" },
};
static NSCursor *
create_blank_cursor (void)
{
NSCursor *nscursor;
NSImage *nsimage;
NSSize size = { 1.0, 1.0 };
nsimage = [[NSImage alloc] initWithSize:size];
nscursor = [[NSCursor alloc] initWithImage:nsimage
hotSpot:NSMakePoint(0.0, 0.0)];
[nsimage release];
return nscursor;
}
NSCursor *
_gdk_macos_cursor_get_ns_cursor (GdkCursor *cursor)
{
const char *name = NULL;
NSCursor *nscursor;
SEL selector = @selector(arrowCursor);
g_return_val_if_fail (!cursor || GDK_IS_CURSOR (cursor), NULL);
if (cursor != NULL)
name = gdk_cursor_get_name (cursor);
if (name == NULL)
goto load_cursor;
if (strcmp (name, "none") == 0)
return create_blank_cursor ();
for (guint i = 0; i < G_N_ELEMENTS (cursors_by_name); i++)
{
if (strcmp (cursors_by_name[i].name, name) == 0)
{
selector = NSSelectorFromString (cursors_by_name[i].selector);
break;
}
}
load_cursor:
nscursor = [[gdkCoreCursor class] performSelector:selector];
[nscursor retain];
return nscursor;
}
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