gecko/modules/plugin/sdk/samples/unixprinting/printplugin.c

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Dantifer Dang <dantifer.dang@sun.com>.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Roland Mainz <roland.mainz@nrubsig.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* Xlib/Xt stuff */
#ifdef MOZ_X11
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include <X11/cursorfont.h>
#endif /* MOZ_X11 */
#include "npapi.h"
#include "printplugin.h"
#include "prprf.h"
#include <stdlib.h>
#include <stdio.h>
/* MIMETypeList maintenance routines */
NPMIMEType
dupMimeType(NPMIMEType type)
{
NPMIMEType mimetype = NPN_MemAlloc(strlen(type)+1);
if (mimetype)
strcpy(mimetype, type);
return mimetype;
}
static void
privatePrintScreenMessage(PluginInstance *This)
{
#ifdef MOZ_X11
GC gc;
unsigned int h,w;
int x,y,l;
const char *string;
gc = XCreateGC(This->display, This->window, 0, NULL);
/* draw a rectangle */
h = This->height/2;
w = 3 * This->width/4;
x = (This->width - w)/2; /* center */
y = h/2;
XDrawRectangle(This->display, This->window, gc, x, y, w, h);
/* draw a string */
string = This->pluginsPrintMessage;
if (string && *string)
{
l = strlen(string);
x += This->width/10;
XDrawString(This->display, This->window, gc, x, This->height/2, string, l);
}
XFreeGC(This->display, gc);
#endif /* MOZ_X11 */
}
static void
setCursor (PluginInstance *This)
{
#ifdef MOZ_X11
static Cursor nullPluginCursor = None;
if (!nullPluginCursor)
{
nullPluginCursor = XCreateFontCursor(This->display, XC_hand2);
}
if (nullPluginCursor)
{
XDefineCursor(This->display, This->window, nullPluginCursor);
}
#endif /* MOZ_X11 */
}
#ifdef MOZ_X11
static void
xt_event_handler(Widget xt_w, PluginInstance *This, XEvent *xevent, Boolean *b)
{
switch (xevent->type)
{
case Expose:
/* get rid of all other exposure events */
do {} while (XCheckTypedWindowEvent(This->display, This->window,
Expose, xevent));
privatePrintScreenMessage(This);
break;
case ButtonRelease:
break;
default:
break;
}
}
#endif /* MOZ_X11 */
static void
addXtEventHandler(PluginInstance *This)
{
#ifdef MOZ_X11
Display *dpy = (Display*) This->display;
Window xwin = (Window) This->window;
Widget xt_w = XtWindowToWidget(dpy, xwin);
if (xt_w)
{
long event_mask = ExposureMask | ButtonReleaseMask | ButtonPressMask;
XSelectInput(dpy, xwin, event_mask);
XtAddEventHandler(xt_w, event_mask, False, (XtEventHandler)xt_event_handler, This);
}
#endif /* MOZ_X11 */
}
void printScreenMessage(PluginInstance *This)
{
privatePrintScreenMessage(This);
setCursor(This);
addXtEventHandler(This);
}
void printEPSMessage(PluginInstance *This, FILE *output, NPWindow window)
{
char *string;
int x,y,h,w;
if (!output)
return;
fprintf(output, "%%!PS-Adobe-3.0 EPSF-3.0\n");
fprintf(output, "%%%%BoundingBox: 0 0 %d %d\n", window.width, window.height);
fprintf(output, "%%%%EndComments\n");
fprintf(output, "gsave\n");
w = 3 * window.width / 4;
h = window.height / 2;
x = (window.width - w)/2; /* center */
y = h/2;
/* draw a rectangle */
fprintf(output, "newpath\n");
fprintf(output, "%d %d moveto 0 %d rlineto %d 0 rlineto 0 %d rlineto\n",
x, y, h, w, -h);
fprintf(output, "closepath\n");
fprintf(output, "stroke\n");
/* draw a string */
string = This->pluginsPrintMessage;
if (string && *string)
{
fprintf(output, "/Times-Roman findfont 300 scalefont setfont\n");
fprintf(output, "%d %d moveto\n", x + window.width/10, window.height / 2);
fprintf(output, "(%s) show\n",string);
}
fprintf(output,"grestore\n");
fprintf(output,"%%%%EOF\n");
}