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_macosx.m
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#define PY_SSIZE_T_CLEAN
#include <Cocoa/Cocoa.h>
#include <ApplicationServices/ApplicationServices.h>
#include <sys/socket.h>
#include <Python.h>
#ifndef PYPY
/* Remove this once Python is fixed: https://bugs.python.org/issue23237 */
#define PYOSINPUTHOOK_REPETITIVE 1
#endif
/* Proper way to check for the OS X version we are compiling for, from
http://developer.apple.com/documentation/DeveloperTools/Conceptual/cross_development */
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
#define COMPILING_FOR_10_7
#endif
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 10100
#define COMPILING_FOR_10_10
#endif
/* CGFloat was defined in Mac OS X 10.5 */
#ifndef CGFLOAT_DEFINED
#define CGFloat float
#endif
/* Various NSApplicationDefined event subtypes */
#define STOP_EVENT_LOOP 2
#define WINDOW_CLOSING 3
/* Keep track of number of windows present
Needed to know when to stop the NSApp */
static long FigureWindowCount = 0;
/* -------------------------- Helper function ---------------------------- */
static void
_stdin_callback(CFReadStreamRef stream, CFStreamEventType eventType, void* info)
{
CFRunLoopRef runloop = info;
CFRunLoopStop(runloop);
}
static int sigint_fd = -1;
static void _sigint_handler(int sig)
{
const char c = 'i';
write(sigint_fd, &c, 1);
}
static void _sigint_callback(CFSocketRef s,
CFSocketCallBackType type,
CFDataRef address,
const void * data,
void *info)
{
char c;
int* interrupted = info;
CFSocketNativeHandle handle = CFSocketGetNative(s);
CFRunLoopRef runloop = CFRunLoopGetCurrent();
read(handle, &c, 1);
*interrupted = 1;
CFRunLoopStop(runloop);
}
static CGEventRef _eventtap_callback(CGEventTapProxy proxy, CGEventType type, CGEventRef event, void *refcon)
{
CFRunLoopRef runloop = refcon;
CFRunLoopStop(runloop);
return event;
}
static int wait_for_stdin(void)
{
int interrupted = 0;
const UInt8 buffer[] = "/dev/fd/0";
const CFIndex n = (CFIndex)strlen((char*)buffer);
CFRunLoopRef runloop = CFRunLoopGetCurrent();
CFURLRef url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
buffer,
n,
false);
CFReadStreamRef stream = CFReadStreamCreateWithFile(kCFAllocatorDefault,
url);
CFRelease(url);
CFReadStreamOpen(stream);
#ifdef PYOSINPUTHOOK_REPETITIVE
if (!CFReadStreamHasBytesAvailable(stream))
/* This is possible because of how PyOS_InputHook is called from Python */
{
#endif
int error;
int channel[2];
CFSocketRef sigint_socket = NULL;
PyOS_sighandler_t py_sigint_handler = NULL;
CFStreamClientContext clientContext = {0, NULL, NULL, NULL, NULL};
clientContext.info = runloop;
CFReadStreamSetClient(stream,
kCFStreamEventHasBytesAvailable,
_stdin_callback,
&clientContext);
CFReadStreamScheduleWithRunLoop(stream, runloop, kCFRunLoopDefaultMode);
error = socketpair(AF_UNIX, SOCK_STREAM, 0, channel);
if (error==0)
{
CFSocketContext context;
context.version = 0;
context.info = &interrupted;
context.retain = NULL;
context.release = NULL;
context.copyDescription = NULL;
fcntl(channel[0], F_SETFL, O_WRONLY | O_NONBLOCK);
sigint_socket = CFSocketCreateWithNative(
kCFAllocatorDefault,
channel[1],
kCFSocketReadCallBack,
_sigint_callback,
&context);
if (sigint_socket)
{
CFRunLoopSourceRef source;
source = CFSocketCreateRunLoopSource(kCFAllocatorDefault,
sigint_socket,
0);
CFRelease(sigint_socket);
if (source)
{
CFRunLoopAddSource(runloop, source, kCFRunLoopDefaultMode);
CFRelease(source);
sigint_fd = channel[0];
py_sigint_handler = PyOS_setsig(SIGINT, _sigint_handler);
}
}
}
NSEvent* event;
while (true) {
while (true) {
event = [NSApp nextEventMatchingMask: NSAnyEventMask
untilDate: [NSDate distantPast]
inMode: NSDefaultRunLoopMode
dequeue: YES];
if (!event) break;
[NSApp sendEvent: event];
}
CFRunLoopRun();
if (interrupted || CFReadStreamHasBytesAvailable(stream)) break;
}
if (py_sigint_handler) PyOS_setsig(SIGINT, py_sigint_handler);
CFReadStreamUnscheduleFromRunLoop(stream,
runloop,
kCFRunLoopCommonModes);
if (sigint_socket) CFSocketInvalidate(sigint_socket);
if (error==0) {
close(channel[0]);
close(channel[1]);
}
#ifdef PYOSINPUTHOOK_REPETITIVE
}
#endif
CFReadStreamClose(stream);
CFRelease(stream);
if (interrupted) {
errno = EINTR;
raise(SIGINT);
return -1;
}
return 1;
}
/* ---------------------------- Cocoa classes ---------------------------- */
@interface WindowServerConnectionManager : NSObject
{
}
+ (WindowServerConnectionManager*)sharedManager;
- (void)launch:(NSNotification*)notification;
@end
@interface Window : NSWindow
{ PyObject* manager;
}
- (Window*)initWithContentRect:(NSRect)rect styleMask:(unsigned int)mask backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation withManager: (PyObject*)theManager;
- (NSRect)constrainFrameRect:(NSRect)rect toScreen:(NSScreen*)screen;
- (BOOL)closeButtonPressed;
- (void)dealloc;
@end
@interface ToolWindow : NSWindow
{
}
- (ToolWindow*)initWithContentRect:(NSRect)rect master:(NSWindow*)window;
- (void)masterCloses:(NSNotification*)notification;
- (void)close;
@end
@interface View : NSView <NSWindowDelegate>
{ PyObject* canvas;
NSRect rubberband;
NSTrackingRectTag tracking;
@public double device_scale;
}
- (void)dealloc;
- (void)drawRect:(NSRect)rect;
- (void)windowDidResize:(NSNotification*)notification;
- (View*)initWithFrame:(NSRect)rect;
- (void)setCanvas: (PyObject*)newCanvas;
- (void)windowWillClose:(NSNotification*)notification;
- (BOOL)windowShouldClose:(NSNotification*)notification;
- (BOOL)isFlipped;
- (void)mouseEntered:(NSEvent*)event;
- (void)mouseExited:(NSEvent*)event;
- (void)mouseDown:(NSEvent*)event;
- (void)mouseUp:(NSEvent*)event;
- (void)mouseDragged:(NSEvent*)event;
- (void)mouseMoved:(NSEvent*)event;
- (void)rightMouseDown:(NSEvent*)event;
- (void)rightMouseUp:(NSEvent*)event;
- (void)rightMouseDragged:(NSEvent*)event;
- (void)otherMouseDown:(NSEvent*)event;
- (void)otherMouseUp:(NSEvent*)event;
- (void)otherMouseDragged:(NSEvent*)event;
- (void)setRubberband:(NSRect)rect;
- (void)removeRubberband;
- (const char*)convertKeyEvent:(NSEvent*)event;
- (void)keyDown:(NSEvent*)event;
- (void)keyUp:(NSEvent*)event;
- (void)scrollWheel:(NSEvent *)event;
- (BOOL)acceptsFirstResponder;
//- (void)flagsChanged:(NSEvent*)event;
@end
/* ---------------------------- Python classes ---------------------------- */
static bool backend_inited = false;
static void lazy_init(void) {
if (backend_inited) {
return;
}
backend_inited = true;
NSApp = [NSApplication sharedApplication];
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
#ifndef PYPY
/* TODO: remove ifndef after the new PyPy with the PyOS_InputHook implementation
get released: https://bitbucket.org/pypy/pypy/commits/caaf91a */
PyOS_InputHook = wait_for_stdin;
#endif
WindowServerConnectionManager* connectionManager = [WindowServerConnectionManager sharedManager];
NSWorkspace* workspace = [NSWorkspace sharedWorkspace];
NSNotificationCenter* notificationCenter = [workspace notificationCenter];
[notificationCenter addObserver: connectionManager
selector: @selector(launch:)
name: NSWorkspaceDidLaunchApplicationNotification
object: nil];
}
static PyObject*
event_loop_is_running(PyObject* self)
{
if (backend_inited) {
Py_RETURN_TRUE;
} else {
Py_RETURN_FALSE;
}
}
static CGFloat _get_device_scale(CGContextRef cr)
{
CGSize pixelSize = CGContextConvertSizeToDeviceSpace(cr, CGSizeMake(1, 1));
return pixelSize.width;
}
typedef struct {
PyObject_HEAD
View* view;
} FigureCanvas;
static PyObject*
FigureCanvas_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
lazy_init();
FigureCanvas *self = (FigureCanvas*)type->tp_alloc(type, 0);
if (!self) return NULL;
self->view = [View alloc];
return (PyObject*)self;
}
static int
FigureCanvas_init(FigureCanvas *self, PyObject *args, PyObject *kwds)
{
int width;
int height;
if(!self->view)
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
return -1;
}
if(!PyArg_ParseTuple(args, "ii", &width, &height)) return -1;
NSRect rect = NSMakeRect(0.0, 0.0, width, height);
self->view = [self->view initWithFrame: rect];
self->view.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
int opts = (NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved |
NSTrackingActiveInKeyWindow | NSTrackingInVisibleRect);
[self->view addTrackingArea: [
[NSTrackingArea alloc] initWithRect: rect
options: opts
owner: self->view
userInfo: nil]];
[self->view setCanvas: (PyObject*)self];
return 0;
}
static void
FigureCanvas_dealloc(FigureCanvas* self)
{
if (self->view)
{
[self->view setCanvas: NULL];
[self->view release];
}
Py_TYPE(self)->tp_free((PyObject*)self);
}
static PyObject*
FigureCanvas_repr(FigureCanvas* self)
{
return PyUnicode_FromFormat("FigureCanvas object %p wrapping NSView %p",
(void*)self, (void*)(self->view));
}
static PyObject*
FigureCanvas_draw(FigureCanvas* self)
{
View* view = self->view;
if(view) /* The figure may have been closed already */
{
[view display];
}
Py_RETURN_NONE;
}
static PyObject*
FigureCanvas_draw_idle(FigureCanvas* self)
{
View* view = self->view;
if(!view)
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
return NULL;
}
[view setNeedsDisplay: YES];
Py_RETURN_NONE;
}
static PyObject*
FigureCanvas_flush_events(FigureCanvas* self)
{
View* view = self->view;
if(!view)
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
return NULL;
}
[view displayIfNeeded];
Py_RETURN_NONE;
}
static PyObject*
FigureCanvas_set_rubberband(FigureCanvas* self, PyObject *args)
{
View* view = self->view;
int x0, y0, x1, y1;
NSRect rubberband;
if(!view)
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
return NULL;
}
if(!PyArg_ParseTuple(args, "iiii", &x0, &y0, &x1, &y1)) return NULL;
x0 /= view->device_scale;
x1 /= view->device_scale;
y0 /= view->device_scale;
y1 /= view->device_scale;
if (x1 > x0)
{
rubberband.origin.x = x0;
rubberband.size.width = x1 - x0;
}
else
{
rubberband.origin.x = x1;
rubberband.size.width = x0 - x1;
}
if (y1 > y0)
{
rubberband.origin.y = y0;
rubberband.size.height = y1 - y0;
}
else
{
rubberband.origin.y = y1;
rubberband.size.height = y0 - y1;
}
[view setRubberband: rubberband];
Py_RETURN_NONE;
}
static PyObject*
FigureCanvas_remove_rubberband(FigureCanvas* self)
{
View* view = self->view;
if(!view)
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
return NULL;
}
[view removeRubberband];
Py_RETURN_NONE;
}
static PyObject*
FigureCanvas_start_event_loop(FigureCanvas* self, PyObject* args, PyObject* keywords)
{
float timeout = 0.0;
static char* kwlist[] = {"timeout", NULL};
if(!PyArg_ParseTupleAndKeywords(args, keywords, "f", kwlist, &timeout))
return NULL;
int error;
int interrupted = 0;
int channel[2];
CFSocketRef sigint_socket = NULL;
PyOS_sighandler_t py_sigint_handler = NULL;
CFRunLoopRef runloop = CFRunLoopGetCurrent();
error = pipe(channel);
if (error==0)
{
CFSocketContext context = {0, NULL, NULL, NULL, NULL};
fcntl(channel[1], F_SETFL, O_WRONLY | O_NONBLOCK);
context.info = &interrupted;
sigint_socket = CFSocketCreateWithNative(kCFAllocatorDefault,
channel[0],
kCFSocketReadCallBack,
_sigint_callback,
&context);
if (sigint_socket)
{
CFRunLoopSourceRef source;
source = CFSocketCreateRunLoopSource(kCFAllocatorDefault,
sigint_socket,
0);
CFRelease(sigint_socket);
if (source)
{
CFRunLoopAddSource(runloop, source, kCFRunLoopDefaultMode);
CFRelease(source);
sigint_fd = channel[1];
py_sigint_handler = PyOS_setsig(SIGINT, _sigint_handler);
}
}
else
close(channel[0]);
}
NSDate* date =
(timeout > 0.0) ? [NSDate dateWithTimeIntervalSinceNow: timeout]
: [NSDate distantFuture];
while (true)
{ NSEvent* event = [NSApp nextEventMatchingMask: NSAnyEventMask
untilDate: date
inMode: NSDefaultRunLoopMode
dequeue: YES];
if (!event || [event type]==NSApplicationDefined) break;
[NSApp sendEvent: event];
}
if (py_sigint_handler) PyOS_setsig(SIGINT, py_sigint_handler);
if (sigint_socket) CFSocketInvalidate(sigint_socket);
if (error==0) close(channel[1]);
if (interrupted) raise(SIGINT);
Py_RETURN_NONE;
}
static PyObject*
FigureCanvas_stop_event_loop(FigureCanvas* self)
{
NSEvent* event = [NSEvent otherEventWithType: NSApplicationDefined
location: NSZeroPoint
modifierFlags: 0
timestamp: 0.0
windowNumber: 0
context: nil
subtype: STOP_EVENT_LOOP
data1: 0
data2: 0];
[NSApp postEvent: event atStart: true];
Py_RETURN_NONE;
}
static PyMethodDef FigureCanvas_methods[] = {
{"draw",
(PyCFunction)FigureCanvas_draw,
METH_NOARGS,
NULL, // docstring inherited.
},
{"draw_idle",
(PyCFunction)FigureCanvas_draw_idle,
METH_NOARGS,
NULL, // docstring inherited.
},
{"flush_events",
(PyCFunction)FigureCanvas_flush_events,
METH_NOARGS,
"Flush the GUI events for the figure."
},
{"set_rubberband",
(PyCFunction)FigureCanvas_set_rubberband,
METH_VARARGS,
"Specifies a new rubberband rectangle and invalidates it."
},
{"remove_rubberband",
(PyCFunction)FigureCanvas_remove_rubberband,
METH_NOARGS,
"Removes the current rubberband rectangle."
},
{"start_event_loop",
(PyCFunction)FigureCanvas_start_event_loop,
METH_KEYWORDS | METH_VARARGS,
"Runs the event loop until the timeout or until stop_event_loop is called.\n",
},
{"stop_event_loop",
(PyCFunction)FigureCanvas_stop_event_loop,
METH_NOARGS,
"Stops the event loop that was started by start_event_loop.\n",
},
{NULL} /* Sentinel */
};
static char FigureCanvas_doc[] =
"A FigureCanvas object wraps a Cocoa NSView object.\n";
static PyTypeObject FigureCanvasType = {
PyVarObject_HEAD_INIT(NULL, 0)
"_macosx.FigureCanvas", /*tp_name*/
sizeof(FigureCanvas), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)FigureCanvas_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
(reprfunc)FigureCanvas_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
FigureCanvas_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
FigureCanvas_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)FigureCanvas_init, /* tp_init */
0, /* tp_alloc */
FigureCanvas_new, /* tp_new */
};
typedef struct {
PyObject_HEAD
Window* window;
} FigureManager;
static PyObject*
FigureManager_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
lazy_init();
Window* window = [Window alloc];
if (!window) return NULL;
FigureManager *self = (FigureManager*)type->tp_alloc(type, 0);
if (!self)
{
[window release];
return NULL;
}
self->window = window;
++FigureWindowCount;
return (PyObject*)self;
}
static int
FigureManager_init(FigureManager *self, PyObject *args, PyObject *kwds)
{
NSRect rect;
Window* window;
View* view;
const char* title;
PyObject* size;
int width, height;
PyObject* obj;
FigureCanvas* canvas;
if(!self->window)
{
PyErr_SetString(PyExc_RuntimeError, "NSWindow* is NULL");
return -1;
}
if(!PyArg_ParseTuple(args, "Os", &obj, &title)) return -1;
canvas = (FigureCanvas*)obj;
view = canvas->view;
if (!view) /* Something really weird going on */
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
return -1;
}
size = PyObject_CallMethod(obj, "get_width_height", "");
if(!size) return -1;
if(!PyArg_ParseTuple(size, "ii", &width, &height))
{ Py_DECREF(size);
return -1;
}
Py_DECREF(size);
rect.origin.x = 100;
rect.origin.y = 350;
rect.size.height = height;
rect.size.width = width;
self->window = [self->window initWithContentRect: rect
styleMask: NSTitledWindowMask
| NSClosableWindowMask
| NSResizableWindowMask
| NSMiniaturizableWindowMask
backing: NSBackingStoreBuffered
defer: YES
withManager: (PyObject*)self];
window = self->window;
[window setTitle: [NSString stringWithCString: title
encoding: NSASCIIStringEncoding]];
[window setDelegate: view];
[window makeFirstResponder: view];
[[window contentView] addSubview: view];
return 0;
}
static PyObject*
FigureManager_repr(FigureManager* self)
{
return PyUnicode_FromFormat("FigureManager object %p wrapping NSWindow %p",
(void*) self, (void*)(self->window));
}
static void
FigureManager_dealloc(FigureManager* self)
{
Window* window = self->window;
if(window)
{
[window close];
}
Py_TYPE(self)->tp_free((PyObject*)self);
}
static PyObject*
FigureManager_show(FigureManager* self)
{
Window* window = self->window;
if(window)
{
[window makeKeyAndOrderFront: nil];
[window orderFrontRegardless];
}
Py_RETURN_NONE;
}
static PyObject*
FigureManager_destroy(FigureManager* self)
{
Window* window = self->window;
if(window)
{
[window close];
self->window = NULL;
}
Py_RETURN_NONE;
}
static PyObject*
FigureManager_set_window_title(FigureManager* self,
PyObject *args, PyObject *kwds)
{
const char* title;
if (!PyArg_ParseTuple(args, "s", &title)) {
return NULL;
}
Window* window = self->window;
if(window)
{
NSString* ns_title = [[[NSString alloc]
initWithCString: title
encoding: NSUTF8StringEncoding] autorelease];
[window setTitle: ns_title];
}
Py_RETURN_NONE;
}
static PyObject*
FigureManager_get_window_title(FigureManager* self)
{
Window* window = self->window;
PyObject* result = NULL;
if(window)
{
NSString* title = [window title];
if (title) {
const char* cTitle = [title UTF8String];
result = PyUnicode_FromString(cTitle);
}
}
if (result) {
return result;
} else {
Py_RETURN_NONE;
}
}
static PyObject*
FigureManager_resize(FigureManager* self, PyObject *args, PyObject *kwds)
{
int width, height;
if (!PyArg_ParseTuple(args, "ii", &width, &height)) {
return NULL;
}
Window* window = self->window;
if(window)
{
// 36 comes from hard-coded size of toolbar later in code
[window setContentSize: NSMakeSize(width, height + 36.)];
}
Py_RETURN_NONE;
}
static PyMethodDef FigureManager_methods[] = {
{"show",
(PyCFunction)FigureManager_show,
METH_NOARGS,
"Shows the window associated with the figure manager."
},
{"destroy",
(PyCFunction)FigureManager_destroy,
METH_NOARGS,
"Closes the window associated with the figure manager."
},
{"set_window_title",
(PyCFunction)FigureManager_set_window_title,
METH_VARARGS,
"Sets the title of the window associated with the figure manager."
},
{"get_window_title",
(PyCFunction)FigureManager_get_window_title,
METH_NOARGS,
"Returns the title of the window associated with the figure manager."
},
{"resize",
(PyCFunction)FigureManager_resize,
METH_VARARGS,
"Resize the window (in pixels)."
},
{NULL} /* Sentinel */
};
static char FigureManager_doc[] =
"A FigureManager object wraps a Cocoa NSWindow object.\n";
static PyTypeObject FigureManagerType = {
PyVarObject_HEAD_INIT(NULL, 0)
"_macosx.FigureManager", /*tp_name*/
sizeof(FigureManager), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)FigureManager_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
(reprfunc)FigureManager_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
FigureManager_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
FigureManager_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)FigureManager_init, /* tp_init */
0, /* tp_alloc */
FigureManager_new, /* tp_new */
};
@interface NavigationToolbar2Handler : NSObject
{ PyObject* toolbar;
NSButton* panbutton;
NSButton* zoombutton;
}
- (NavigationToolbar2Handler*)initWithToolbar:(PyObject*)toolbar;
- (void)installCallbacks:(SEL[7])actions forButtons: (NSButton*[7])buttons;
- (void)home:(id)sender;
- (void)back:(id)sender;
- (void)forward:(id)sender;
- (void)pan:(id)sender;
- (void)zoom:(id)sender;
- (void)configure_subplots:(id)sender;
- (void)save_figure:(id)sender;
@end
typedef struct {
PyObject_HEAD
NSPopUpButton* menu;
NSTextView* messagebox;
NavigationToolbar2Handler* handler;
int height;
} NavigationToolbar2;
@implementation NavigationToolbar2Handler
- (NavigationToolbar2Handler*)initWithToolbar:(PyObject*)theToolbar
{ [self init];
toolbar = theToolbar;
return self;
}
- (void)installCallbacks:(SEL[7])actions forButtons: (NSButton*[7])buttons
{
int i;
for (i = 0; i < 7; i++)
{
SEL action = actions[i];
NSButton* button = buttons[i];
[button setTarget: self];
[button setAction: action];
if (action==@selector(pan:)) panbutton = button;
if (action==@selector(zoom:)) zoombutton = button;
}
}
-(void)home:(id)sender
{ PyObject* result;
PyGILState_STATE gstate;
gstate = PyGILState_Ensure();
result = PyObject_CallMethod(toolbar, "home", "");
if(result)
Py_DECREF(result);
else
PyErr_Print();
PyGILState_Release(gstate);
}
-(void)back:(id)sender
{ PyObject* result;
PyGILState_STATE gstate;
gstate = PyGILState_Ensure();
result = PyObject_CallMethod(toolbar, "back", "");
if(result)
Py_DECREF(result);
else
PyErr_Print();
PyGILState_Release(gstate);
}
-(void)forward:(id)sender
{ PyObject* result;
PyGILState_STATE gstate;
gstate = PyGILState_Ensure();
result = PyObject_CallMethod(toolbar, "forward", "");
if(result)
Py_DECREF(result);
else
PyErr_Print();
PyGILState_Release(gstate);
}
-(void)pan:(id)sender
{ PyObject* result;
PyGILState_STATE gstate;
if ([sender state])
{
if (zoombutton) [zoombutton setState: NO];
}
gstate = PyGILState_Ensure();
result = PyObject_CallMethod(toolbar, "pan", "");
if(result)
Py_DECREF(result);
else
PyErr_Print();
PyGILState_Release(gstate);
}
-(void)zoom:(id)sender
{ PyObject* result;
PyGILState_STATE gstate;
if ([sender state])
{
if (panbutton) [panbutton setState: NO];
}
gstate = PyGILState_Ensure();
result = PyObject_CallMethod(toolbar, "zoom", "");
if(result)
Py_DECREF(result);
else
PyErr_Print();
PyGILState_Release(gstate);
}
-(void)configure_subplots:(id)sender
{ PyObject* canvas;
View* view;
PyObject* size;
NSRect rect;
int width, height;
rect.origin.x = 100;
rect.origin.y = 350;
PyGILState_STATE gstate = PyGILState_Ensure();
PyObject* master = PyObject_GetAttrString(toolbar, "canvas");
if (master==nil)
{
PyErr_Print();
PyGILState_Release(gstate);
return;
}
canvas = PyObject_CallMethod(toolbar, "prepare_configure_subplots", "");
if(!canvas)
{
PyErr_Print();
Py_DECREF(master);
PyGILState_Release(gstate);
return;
}
view = ((FigureCanvas*)canvas)->view;
if (!view) /* Something really weird going on */
{
PyErr_SetString(PyExc_RuntimeError, "NSView* is NULL");
PyErr_Print();