268 lines
6.9 KiB
C++
268 lines
6.9 KiB
C++
#include "precompiled.h"
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/*
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* wxJavaScript - ostream.cpp
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*
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* Copyright (c) 2002-2007 Franky Braem and the wxJavaScript project
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*
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* Project Info: http://www.wxjavascript.net or http://wxjs.sourceforge.net
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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* $Id: ostream.cpp 759 2007-06-12 21:13:52Z fbraem $
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*/
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#include <wx/wxprec.h>
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#ifndef WX_PRECOMP
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#include <wx/wx.h>
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#endif
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#include "../common/main.h"
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#include "../ext/wxjs_ext.h"
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#include "../ext/jsmembuf.h"
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#include "stream.h"
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#include "istream.h"
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#include "ostream.h"
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using namespace wxjs;
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using namespace wxjs::io;
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/***
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* <file>ostream</file>
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* <module>io</module>
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* <class name="wxOutputStream" prototpye="@wxStreamBase" version="0.8.2">
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* wxOutputStream is a prototype for output streams. You can't construct it directly.
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* See @wxMemoryOutputStream, @wxFileOutputStream, @wxFFileOutputStream.
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* </class>
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*/
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WXJS_INIT_CLASS(OutputStream, "wxOutputStream", 0)
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/***
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* <properties>
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* <property name="lastWrite" type="Integer" readonly="Y">
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* Gets the last number of bytes written.
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* </property>
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* <property name="tellO" type="Integer" readonly="Y">
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* Returns the current position.
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* </property>
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* </properties>
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*/
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WXJS_BEGIN_PROPERTY_MAP(OutputStream)
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WXJS_READONLY_PROPERTY(P_LAST_WRITE, "lastWrite")
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WXJS_READONLY_PROPERTY(P_TELL_O, "tellO")
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WXJS_END_PROPERTY_MAP()
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bool OutputStream::GetProperty(Stream *p, JSContext *cx, JSObject *obj, int id, jsval *vp)
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{
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wxOutputStream *stream = (wxOutputStream *) p->GetStream();
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switch (id)
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{
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case P_LAST_WRITE:
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*vp = ToJS(cx, (long) stream->LastWrite());
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break;
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case P_TELL_O:
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*vp = ToJS(cx, (long) stream->TellO());
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break;
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}
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return true;
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}
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WXJS_BEGIN_METHOD_MAP(OutputStream)
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WXJS_METHOD("close", close, 0)
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WXJS_METHOD("putC", putC, 1)
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WXJS_METHOD("write", write, 1)
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WXJS_METHOD("seekO", seekO, 1)
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WXJS_METHOD("sync", sync, 0)
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WXJS_END_METHOD_MAP()
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/***
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* <method name="close">
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* <function returns="Boolean" />
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* <desc>
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* Closes the stream
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* </desc>
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* </method>
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*/
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JSBool OutputStream::close(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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Stream *p = GetPrivate(cx, obj);
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if ( p != NULL )
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{
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wxOutputStream *out = (wxOutputStream *) p->GetStream();
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*rval = ToJS(cx, out->Close());
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}
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return JS_TRUE;
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}
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/***
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* <method name="putC">
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* <function>
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* <arg name="Char" type="String" />
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* </function>
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* <desc>
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* The first character of the String is written to the output stream.
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* </desc>
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* </method>
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*/
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JSBool OutputStream::putC(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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Stream *p = GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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wxOutputStream *out = (wxOutputStream *) p->GetStream();
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wxString Buffer;
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FromJS(cx, argv[0], Buffer);
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if ( Buffer.length() > 0 )
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{
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out->PutC(Buffer.at(0));
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}
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return JS_TRUE;
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}
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/***
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* <method name="write">
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* <function returns="Integer">
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* <arg name="Buffer" type="@wxMemoryBuffer" />
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* <arg name="Count" type="Integer">The number of characters to write. Default is the length of buffer.</arg>
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* </function>
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* <function returns="Integer">
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* <arg name="Str" type="String" />
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* </function>
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* <function returns="Integer">
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* <arg name="Input" type="@wxInputStream" />
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* </function>
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* <desc>
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* 1. Writes the buffer to the outputstream. Unlike wxWindows, the size of the buffer must not
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* be specified. If ommitted then the full buffer is written.
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* <br /><br />
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* 2. Reads data from the specified input stream and stores them in the current stream.
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* The data is read until an error is raised by one of the two streams.
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* <br /><br />
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* Unlike wxWidgets, this method returns the number of bytes written.
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* </desc>
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* </method>
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*/
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JSBool OutputStream::write(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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Stream *p = GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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wxOutputStream *out = (wxOutputStream *) p->GetStream();
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if ( InputStream::HasPrototype(cx, argv[0]) )
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{
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Stream *p_in = InputStream::GetPrivate(cx, argv[0], false);
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wxInputStream *in = (wxInputStream *) p_in->GetStream();
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out->Write(*in);
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}
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else
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{
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if ( JSVAL_IS_OBJECT(argv[0]) )
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{
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wxMemoryBuffer* buffer = wxjs::ext::GetMemoryBuffer(cx, JSVAL_TO_OBJECT(argv[0]));
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if ( buffer != NULL )
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{
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*rval = ToJS(cx, out->Write(buffer->GetData(), buffer->GetDataLen()).LastWrite());
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return JS_TRUE;
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}
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}
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wxString buffer;
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FromJS(cx, argv[0], buffer);
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int count = buffer.length();
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if ( argc > 1 )
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{
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if ( FromJS(cx, argv[1], count) )
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{
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if ( count > (int) buffer.length() )
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count = buffer.length();
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}
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else
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return JS_FALSE;
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}
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*rval = ToJS(cx, out->Write(buffer, count).LastWrite());
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}
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return JS_TRUE;
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}
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/***
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* <method name="seekO">
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* <function returns="Integer">
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* <arg name="Offset" type="Integer">Offset to seek to</arg>
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* <arg name="Mode" type="@wxFile#wxSeekMode" default="wxSeekMode.FromStart" />
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* </function>
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* <desc>
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* Seeks the offset. Returns the actual position or -1 on error.
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* </desc>
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* </method>
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*/
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JSBool OutputStream::seekO(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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Stream *p = GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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wxOutputStream *out = (wxOutputStream *) p->GetStream();
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int offset;
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if ( ! FromJS(cx, argv[0], offset) )
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return JS_FALSE;
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int pos;
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if ( argc > 1 )
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{
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int mode;
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if ( FromJS(cx, argv[1], mode) )
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{
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pos = out->SeekO(offset, (wxSeekMode) mode);
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}
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else
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return JS_FALSE;
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}
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else
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pos = out->SeekO(offset);
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*rval = ToJS(cx, pos);
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return JS_TRUE;
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}
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/***
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* <method name="sync">
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* <function />
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* <desc>
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* Flushes the buffer.
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* </desc>
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* </method>
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*/
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JSBool OutputStream::sync(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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Stream *p = GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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wxOutputStream *out = (wxOutputStream *) p->GetStream();
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out->Sync();
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return JS_TRUE;
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}
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