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/*
* Motif
*
* Copyright (c) 1987-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
#include <X11/Intrinsic.h>
#include <Xm/DrawUtils.h>
#define STATIC_RECTS 20
/*
* Function:
* XmDrawBevel(dpy, d, top_GC, bottom_GC, x, y, size, option)
* Description:
* Draws a shadow corner (beveled) at the given location and size.
* Input:
* dpy : Display* - the display to draw to
* d : Drawable - the drawable to use
* top_GC : GC - the GC to use to draw the top half of
* the bevel
* bottom_GC : GC - the GC to use to draw the bottom half
* of the bevel
* x : int - the x location of the corner
* y : int - the y location of the corner
* size : unsigned int - the size of the corner
* (width = height = size)
* option : XmBevelOption- what part of the bevel should we draw.
* Output:
* None.
*/
void
#ifndef _NO_PROTO
XmDrawBevel(Display *dpy, Drawable d, GC top_gc, GC bottom_gc,
int x, int y, unsigned int size, XmBevelOption option)
#else
XmDrawBevel(dpy, d, top_gc, bottom_gc, x, y, size, option)
Display *dpy;
Drawable d;
GC top_gc, bottom_gc;
int x, y;
unsigned int size;
XmBevelOption option;
#endif
{
static XRectangle saved[STATIC_RECTS], *alloced = NULL;
static int numAlloced = 0;
XRectangle *rt;
int i;
/*
* First lets see if we can get away with using our list rectangles
* without allocating any.
*/
if( size < STATIC_RECTS )
{
/*
* OK we don't need to allocate any so lets use the static
* array.
*/
rt = saved;
}
else
{
/*
* Well we need more than our static array holds so lets see
* if we have enough in our alloced array and if no lets
* allocate what we need.
*/
if( size > numAlloced )
{
numAlloced = size;
alloced = (XRectangle*) XtRealloc((XtPointer) alloced,
sizeof(XRectangle) * numAlloced);
}
rt = alloced;
}
/*
* Now that we have enough rectangles to fill in an area lets
* set up the rectangles and pass them off to be drawn. First the
* top half of the beveled corner ...
*/
if( option == XmBEVEL_TOP )
{
for( i = 0; i < size; ++i )
{
rt[i].x = x;
rt[i].y = y + i;
rt[i].width = size - i;
rt[i].height = 1;
}
XFillRectangles(dpy, d, top_gc, rt, size);
}
else if( option == XmBEVEL_BOTH )
{
XFillRectangle(dpy, d, top_gc, x, y, size, size);
}
/*
* ... And the the bottom half of the beveled corner.
*/
if( option == XmBEVEL_BOTH || option == XmBEVEL_BOTTOM )
{
for( i = 0; i < size; ++i )
{
rt[i].x = x + size - i;
rt[i].y = y + i;
rt[i].width = i;
rt[i].height = 1;
}
XFillRectangles(dpy, d, bottom_gc, rt, size);
}
}
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