libjava/gnu/gcj/xlib/natDrawable.cc

   1 /* Copyright (C) 2000  Free Software Foundation
   2
   3    This file is part of libgcj.
   4
   5 This software is copyrighted work licensed under the terms of the
   6 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   7 details.  */
   8
   9 #include <X11/Xlib.h>
  10
  11 #include <gcj/cni.h>
  12 #include <gnu/gcj/RawData.h>
  13
  14 #include <gnu/gcj/xlib/XException.h>
  15 #include <gnu/gcj/xlib/Display.h>
  16 #include <gnu/gcj/xlib/Drawable.h>
  17 #include <gnu/gcj/xlib/XImage.h>
  18
  19 #include <java/awt/Rectangle.h>
  20
  21 jboolean gnu::gcj::xlib::Drawable::copyIntoXImageImpl(XImage* image,
  22                                                       jint x, jint y,
  23                                                       jint width, jint height,
  24                                                       jint destX, jint destY)
  25 {
  26   ::Display* dpy = (::Display*) (getDisplay()->display);
  27   ::XImage* ximage = (::XImage*) image->structure;
  28   int format = image->getFormat();
  29   int xid = getXID();
  30
  31   ::XImage* result = XGetSubImage(dpy, xid,
  32                                   x, y, width, height,
  33                                   ~0, // plane mask
  34                                   format,
  35                                   ximage,
  36                                   destX, destY);
  37   if (result == 0)
  38     return false;
  39
  40   if (result != ximage)
  41     throw new XException(MSG_XGETSUBIMAGE_FAILED);
  42
  43   return true;
  44 }
  45
  46 jint gnu::gcj::xlib::Drawable::getDepth ()
  47 {
  48   ::Display* dpy = (::Display*) (getDisplay ()->display);
  49   ::Window root;
  50   int x, y;
  51   unsigned int w, h, bw, depth;
  52
  53   Status status = XGetGeometry (dpy, getXID(), &root,
  54                                 &x, &y, &w, &h,
  55                                 &bw, &depth);
  56   switch (status)
  57   {
  58     case BadDrawable:
  59       throw new XException (display, status);
  60     default:
  61       ; // All OK, NOP.
  62   }
  63   return (jint)depth;
  64 }
  65
  66 java::awt::Rectangle*
  67 gnu::gcj::xlib::Drawable::getBounds(::java::awt::Rectangle* rv)
  68 {
  69   ::Display* dpy = (::Display*) (getDisplay()->display);
  70
  71   ::Window root;
  72   int x, y;
  73   unsigned int w, h, bw, depth;
  74
  75   Status status = XGetGeometry(dpy, getXID(), &root,
  76                                &x, &y, &w, &h,
  77                                &bw, &depth);
  78
  79   switch (status)
  80     {
  81     case BadDrawable:
  82       throw new XException(display, status);
  83     default:
  84       ; // All OK, NOP.
  85     }
  86
  87   if (rv == 0)
  88     {
  89       rv = new ::java::awt::Rectangle(x, y, w, h);
  90     }
  91   else
  92     {
  93       rv->x = x;
  94       rv->y = y;
  95       rv->width = w;
  96       rv->height = h;
  97     }
  98   return rv;
  99 }