objcmd.cpp

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#include <../../nrnconf.h>
 
#if HAVE_IV
#include <InterViews/window.h>
#include "ivoc.h"
#include "scenevie.h"
#include "utility.h"
#endif
 
#include <ocnotify.h>
#include <stdio.h>
#include <stdlib.h>
#include "objcmd.h"
#include "oc2iv.h"
 
extern Object* hoc_thisobject;
int (*nrnpy_hoccommand_exec)(Object*);
int (*nrnpy_hoccommand_exec_strret)(Object*, char*, int);
void (*nrnpy_cmdtool)(Object*, int type, double x, double y, int kd);
double (*nrnpy_func_call)(Object*, int, int*);
 
HocCommand::HocCommand(const char* cmd) {
    init(cmd, hoc_thisobject);
}
HocCommand::HocCommand(const char* cmd, Object* obj) {
    init(cmd, obj);
}
 
HocCommand::HocCommand(Object* pobj) {
    // must wrap a PyObject method or tuple of (method, arg1, ...)
    // hold a reference to the wrapped PyObject
    if (strcmp(pobj->ctemplate->sym->name, "PythonObject") != 0) {
        hoc_execerror(hoc_object_name(pobj), "not a PythonObject");
    }
    po_ = pobj;
    hoc_obj_ref(po_);
    s_ = NULL;
    obj_ = NULL;
}
 
void HocCommand::init(const char* cmd, Object* obj) {
    s_ = new CopyString(cmd);
    obj_ = obj;
    po_ = NULL;
    if (obj_) {
        nrn_notify_when_void_freed((void*) obj_, this);
    }
}
 
void HocCommand::update(Observable*) {  // obj_ has been freed
    obj_ = NULL;
    delete s_;
    s_ = new CopyString("");
}
 
HocCommand::~HocCommand() {
    if (obj_) {
        nrn_notify_pointer_disconnect(this);
    }
    if (s_) {
        delete s_;
    }
    if (po_) {
        hoc_obj_unref(po_);
    }
}
 
void HocCommand::help() {
#if HAVE_IV
    char buf[200];
    if (obj_) {
        sprintf(buf, "%s %s", s_->string(), obj_->ctemplate->sym->name);
    } else {
        sprintf(buf, "%s", s_->string());
    }
    Oc::help(buf);
#endif
}
 
const char* ccc = "PythonObject";
const char* HocCommand::name() {
    if (po_ == NULL) {
        return s_->string();
    } else {
        return ccc;
    }
}
 
void HocCommand::audit() {
    if (!s_) {
        return;
    }
    char buf[256];
    if (obj_) {
        sprintf(buf, "// execute(\"%s\", %p)\n", name(), obj_);
    } else {
        sprintf(buf, "{%s}\n", name());
    }
    hoc_audit_command(buf);
}
 
int HocCommand::execute(bool notify) {
    int err;
    if (po_) {
        assert(nrnpy_hoccommand_exec);
        err = (*nrnpy_hoccommand_exec)(po_);
    } else {
        if (!s_) {
            return 0;
        }
        char buf[256];
        sprintf(buf, "{%s}\n", s_->string());
        err = hoc_obj_run(buf, obj_);
    }
#if HAVE_IV
    if (notify) {
        Oc oc;
        oc.notify();
    }
#endif
    return err;
}
int HocCommand::exec_strret(char* buf, int size, bool notify) {
    assert(po_) int err = (*nrnpy_hoccommand_exec_strret)(po_, buf, size);
#if HAVE_IV
    if (notify) {
        Oc oc;
        oc.notify();
    }
#endif
    return err;
}
int HocCommand::execute(const char* s, bool notify) {
    assert(po_ == NULL);
    char buf[256];
    sprintf(buf, "{%s}\n", s);
    int err = hoc_obj_run(buf, obj_);
#if HAVE_IV
    if (notify) {
        Oc oc;
        oc.notify();
    }
#endif
    return err;
}
 
double HocCommand::func_call(int narg, int* perr) {
    if (po_) {
        if (nrnpy_func_call) {
            return (*nrnpy_func_call)(po_, narg, perr);
        }
        *perr = 1;
        return 0.0;
    }
    Symbol* s = NULL;
    if (obj_ && obj_->ctemplate) {
        s = hoc_table_lookup(name(), obj_->ctemplate->symtable);
    }
    if (!s) {
        s = hoc_lookup(name());
    }
    if (!s) {
        hoc_execerror(name(), "is not a symbol in HocCommand::func_call");
    }
    return hoc_call_objfunc(s, narg, obj_);
}
 
#if HAVE_IV  // to end of file
 
HocCommandAction::HocCommandAction(HocCommand* hc) {
    hc_ = hc;
}
 
HocCommandAction::~HocCommandAction() {
    delete hc_;
}
 
void HocCommandAction::execute() {
    hc_->execute();
}
 
HocCommandTool::HocCommandTool(HocCommand* hc)
    : Rubberband() {
    hc_ = hc;
}
 
HocCommandTool::~HocCommandTool() {
    delete hc_;
}
 
bool HocCommandTool::event(Event& e) {
    char buf[256];
    Coord x, y;
    int kd;
#ifdef WIN32
    if (e.type() != Event::down && e.type() != Event::up && e.window()->canvas()->any_damage()) {
        return true;
    }
#endif
    if (e.type() == Event::down) {
        handle_old_focus();
        Resource::ref(this);
        e.grab(this);
#ifdef WIN32
        e.window()->grab_pointer();
#endif
    }
    kd = e.control_is_down() + e.shift_is_down() * 2 + e.meta_is_down() * 4;
    //  transformer().inverse_transform(e.pointer_x(), e.pointer_y(), x, y);
    //  the hoc callback may change the size of the view
    const Transformer& t = XYView::current_pick_view()->s2o();
    t.transform(e.pointer_x(), e.pointer_y(), x, y);
    // printf("%g %g %g %g\n", e.pointer_x(), e.pointer_y(), x, y);
    if (e.type() == Event::up) {
        e.ungrab(this);
#ifdef WIN32
        e.window()->ungrab_pointer();
#endif
    }
    if (hc_->pyobject()) {
        (*nrnpy_cmdtool)(hc_->pyobject(), e.type(), x, y, kd);
        Oc oc;
        oc.notify();
    } else {
        sprintf(buf, "%s(%d, %g, %g, %d)", hc_->name(), e.type(), x, y, kd);
        hc_->execute(buf, true);
    }
    if (e.type() == Event::up) {
        Resource::unref(this);
    }
    return true;
}
#endif