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flightgear/src/GUI/CocoaMouseCursor.mm
James Turner 6d0c2070fd Use future-proof SGPath APIs.
Remove uses of .str(), .c_str() and some other methods of SGPath.
Pass SGPath directly where possible, or explicitly convert to the
appropriate 8-bit encoding.
2016-06-28 10:08:38 +01:00

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// CocoaMouseCursor.cxx - mouse cursor using Cocoa APIs
// Copyright (C) 2013 James Turner <zakalawe@mac.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#include "CocoaMouseCursor.hxx"
#include <Foundation/NSPathUtilities.h>
#include <AppKit/NSImage.h>
#include <AppKit/NSCursor.h>
#include <map>
#include <Main/globals.hxx>
#include <GUI/CocoaHelpers_private.h>
class CocoaMouseCursor::CocoaMouseCursorPrivate
{
public:
Cursor activeCursorKey;
typedef std::map<Cursor, NSCursor*> CursorMap;
CursorMap cursors;
};
NSCursor* cocoaCursorForKey(FGMouseCursor::Cursor aKey)
{
NSImage* img = nil;
std::string p = globals->get_fg_root().utf8Str();
NSString* path = [NSString stringWithCString:p.c_str() encoding:NSUTF8StringEncoding];
path = [path stringByAppendingPathComponent:@"gui"];
switch (aKey) {
case FGMouseCursor::CURSOR_HAND: return [NSCursor pointingHandCursor];
case FGMouseCursor::CURSOR_CROSSHAIR: return [NSCursor crosshairCursor];
case FGMouseCursor::CURSOR_IBEAM: return [NSCursor IBeamCursor];
case FGMouseCursor::CURSOR_CLOSED_HAND: return [NSCursor closedHandCursor];
// FIXME - use a proper left-right cursor here.
case FGMouseCursor::CURSOR_LEFT_RIGHT: return [NSCursor resizeLeftRightCursor];
case FGMouseCursor::CURSOR_UP_DOWN: return [NSCursor resizeUpDownCursor];
case FGMouseCursor::CURSOR_SPIN_CW:
path = [path stringByAppendingPathComponent:@"cursor-spin-cw.png"];
img = [[NSImage alloc] initWithContentsOfFile:path];
return [[NSCursor alloc] initWithImage:img hotSpot:NSMakePoint(16,16)];
case FGMouseCursor::CURSOR_SPIN_CCW:
path = [path stringByAppendingPathComponent:@"cursor-spin-cw.png"];
img = [[NSImage alloc] initWithContentsOfFile:path];
return [[NSCursor alloc] initWithImage:img hotSpot:NSMakePoint(16,16)];
default: return [NSCursor arrowCursor];
}
}
CocoaMouseCursor::CocoaMouseCursor() :
d(new CocoaMouseCursorPrivate)
{
}
CocoaMouseCursor::~CocoaMouseCursor()
{
}
void CocoaMouseCursor::setCursor(Cursor aCursor)
{
if (aCursor == d->activeCursorKey) {
return;
}
CocoaAutoreleasePool pool;
d->activeCursorKey = aCursor;
if (d->cursors.find(aCursor) == d->cursors.end()) {
d->cursors[aCursor] = cocoaCursorForKey(aCursor);
[d->cursors[aCursor] retain];
}
[d->cursors[aCursor] set];
}
void CocoaMouseCursor::setCursorVisible(bool aVis)
{
CocoaAutoreleasePool pool;
if (aVis) {
[NSCursor unhide];
} else {
[NSCursor hide];
}
}
void CocoaMouseCursor::hideCursorUntilMouseMove()
{
[NSCursor setHiddenUntilMouseMoves:YES];
}
void CocoaMouseCursor::mouseMoved()
{
// no-op
}