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53bcba3368
IGUIObject: Cache the JSObject*, to prevent some frequent allocation while running GUI scripts. JSInterface_IGUIObject: Fixed garbage collection issues. JSInterface_IGUIObject, ScriptGlue: Changed to the JS_THREADSAFE form of JS_GetClass. Util: Avoid startup warnings on Linux caused by using unimplemented cpu_* functions that aren't needed for anything important yet. sysdep/unix: Changed to native line endings. This was SVN commit r5154.
304 lines
8.4 KiB
C++
304 lines
8.4 KiB
C++
#include "precompiled.h"
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/*
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* wxJavaScript - imghand.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: imghand.cpp 598 2007-03-07 20:13:28Z fbraem $
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*/
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// imghand.cpp
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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 "../../common/type.h"
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#include "../../common/jsutil.h"
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#include "../../io/jsstream.h"
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#include "image.h"
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#include "imghand.h"
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using namespace wxjs;
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using namespace wxjs::gui;
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/***
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* <file>misc/imghand</file>
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* <module>gui</module>
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* <class name="wxImageHandler">
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* wxImageHandler is the prototype for several image handlers.
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* See @wxImage, @wxBMPHandler, @wxGIFHandler, @wxICOHandler,
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* @wxJPEGHandler, @wxPCXHandler, @wxPNGHandler, @wxPNMHandler,
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* @wxTIFFHandler, @wxXPMHandler
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* </class>
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*/
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WXJS_INIT_CLASS(ImageHandler, "wxImageHandler", 0)
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/***
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* <properties>
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* <property name="extension" type="String">
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* Get/Set the handler extension.
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* </property>
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* <property name="mimeType" type="String">
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* Get/Set the handler MIME type.
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* </property>
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* <property name="name" type="String">
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* Get/Set the handler name.
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* </property>
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* <property name="type" type="Integer">
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* Get/Set the handler type.
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* </property>
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* </properties>
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*/
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WXJS_BEGIN_PROPERTY_MAP(ImageHandler)
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WXJS_PROPERTY(P_NAME, "name")
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WXJS_PROPERTY(P_EXTENSION, "extension")
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WXJS_PROPERTY(P_TYPE, "type")
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WXJS_PROPERTY(P_MIME_TYPE, "mimeType")
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WXJS_END_PROPERTY_MAP()
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bool ImageHandler::GetProperty(ImageHandlerPrivate *p, JSContext *cx, JSObject *obj, int id, jsval *vp)
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{
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wxImageHandler *handler = p->GetHandler();
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switch (id)
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{
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case P_NAME:
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*vp = ToJS(cx, handler->GetName());
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break;
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case P_EXTENSION:
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*vp = ToJS(cx, handler->GetExtension());
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break;
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case P_TYPE:
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*vp = ToJS(cx, handler->GetType());
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break;
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case P_MIME_TYPE:
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*vp = ToJS(cx, handler->GetMimeType());
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break;
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}
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return true;
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}
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bool ImageHandler::SetProperty(ImageHandlerPrivate *p, JSContext *cx, JSObject *obj, int id, jsval *vp)
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{
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wxImageHandler *handler = p->GetHandler();
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switch (id)
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{
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case P_NAME:
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{
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wxString name;
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FromJS(cx, *vp, name);
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handler->SetName(name);
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break;
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}
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case P_EXTENSION:
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{
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wxString ext;
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FromJS(cx, *vp, ext);
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handler->SetName(ext);
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break;
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}
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case P_TYPE:
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{
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long type;
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if ( FromJS(cx, *vp, type) )
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handler->SetType(type);
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break;
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}
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case P_MIME_TYPE:
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{
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wxString mime;
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FromJS(cx, *vp, mime);
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handler->SetName(mime);
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break;
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}
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}
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return true;
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}
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WXJS_BEGIN_METHOD_MAP(ImageHandler)
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WXJS_METHOD("getImageCount", getImageCount, 1)
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WXJS_METHOD("loadFile", loadFile, 2)
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WXJS_METHOD("saveFile", saveFile, 2)
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WXJS_END_METHOD_MAP()
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/***
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* <method name="getImageCount">
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* <function returns="Integer">
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* <arg name="Stream" type="@wxInputStream">
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* Opened input stream for reading image data. Currently, the stream must support seeking.
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* </arg>
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* </function>
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* <desc>
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* If the image file contains more than one image and the image handler is capable
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* of retrieving these individually, this function will return the number of available images.
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* Most imagehandlers return 1.
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* </desc>
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* </method>
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*/
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JSBool ImageHandler::getImageCount(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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ImageHandlerPrivate *p = GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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io::Stream *stream = NULL;
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if ( wxjs::HasPrototype(cx, argv[0], "wxInputStream") )
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stream = (io::Stream *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(argv[0]));
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else
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return JS_FALSE;
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wxInputStream *in = dynamic_cast<wxInputStream *>(stream->GetStream());
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if ( in == NULL )
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{
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// TODO: error reporting
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return JS_FALSE;
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}
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*rval = ToJS(cx, p->GetHandler()->GetImageCount(*in));
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return JS_FALSE;
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}
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/***
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* <method name="loadFile">
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* <function returns="Boolean">
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* <arg name="Image" type="@wxImage">
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* The object that gets the loaded image.
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* </arg>
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* <arg name="Stream" type="@wxInputStream">
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* Opened input stream for reading image data.
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* </arg>
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* <arg name="Verbose" type="Boolean" default="true">
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* When true the image handler will report errors using wxLog
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* </arg>
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* <arg name="Index" type="Integer" default="0">
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* The index of the image in the file (zero-based).
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* </arg>
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* </function>
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* <desc>
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* Loads a image from a stream, putting the resulting data into image.
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* If the image file contains more than one image and the image handler is capable
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* of retrieving these individually, index indicates which image to read from the stream.
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* Returns true when successful, false otherwise.
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* </desc>
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* </method>
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*/
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JSBool ImageHandler::loadFile(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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ImageHandlerPrivate *p = ImageHandler::GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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int idx = 0;
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bool verbose = true;
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switch(argc)
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{
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case 4:
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if ( ! FromJS(cx, argv[3], idx) )
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return JS_FALSE;
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case 3:
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if ( ! FromJS(cx, argv[2], verbose) )
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return JS_FALSE;
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default:
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wxImage *img = Image::GetPrivate(cx, argv[0]);
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if ( img == NULL )
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return JS_FALSE;
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io::Stream *stream = NULL;
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if ( wxjs::HasPrototype(cx, argv[0], "wxInputStream") )
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stream = (io::Stream *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(argv[0]));
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else
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return JS_FALSE;
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wxInputStream *in = dynamic_cast<wxInputStream *>(stream->GetStream());
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if ( in == NULL )
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{
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// TODO: error reporting
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return JS_FALSE;
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}
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*rval = ToJS(cx, p->GetHandler()->LoadFile(img, *in, verbose, idx));
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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="saveFile">
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* <function returns="Boolean">
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* <arg name="Image" type="@wxImage">
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* The object that gets the loaded image.
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* </arg>
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* <arg name="Stream" type="@wxOutputStream">
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* Opened output stream for writing the image data.
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* </arg>
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* <arg name="Verbose" type="Boolean" default="true">
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* When true the image handler will report errors using wxLog
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* </arg>
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* </function>
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* <desc>
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* Saves a image in the output stream. Returns true on success, false otherwise.
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* </desc>
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* </method>
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*/
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JSBool ImageHandler::saveFile(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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ImageHandlerPrivate *p = GetPrivate(cx, obj);
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if ( p == NULL )
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return JS_FALSE;
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if ( argc > 3 )
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argc = 3;
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bool verbose = true;
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switch(argc)
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{
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case 3:
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if ( ! FromJS(cx, argv[2], verbose) )
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return JS_FALSE;
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default:
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wxImage *img = Image::GetPrivate(cx, argv[0]);
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if ( img == NULL )
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return JS_FALSE;
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io::Stream *stream = NULL;
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if ( wxjs::HasPrototype(cx, argv[0], "wxOutputStream") )
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stream = (io::Stream *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(argv[0]));
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else
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return JS_FALSE;
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wxOutputStream *out = dynamic_cast<wxOutputStream *>(stream->GetStream());
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if ( out == NULL )
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{
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// TODO: error reporting
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return JS_FALSE;
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}
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*rval = ToJS(cx, p->GetHandler()->SaveFile(img, *out, verbose));
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}
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return JS_TRUE;
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}
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