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/*
Copyright (c) 2003,2004,2005 Clarence Dang <[email protected]>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define DEBUG_KP_CURSOR_LIGHT_CROSS 0
#include <kpcursorlightcross.h>
#include <qbitmap.h>
#include <qcursor.h>
#include <kdebug.h>
enum PixelValue
{
White, Black, Transparent
};
static void setPixel (unsigned char *colorBitmap,
unsigned char *maskBitmap,
int width,
int y, int x, enum PixelValue pv)
{
const int ColorBlack = 1;
const int ColorWhite = 0;
const int MaskOpaque = 1;
const int MaskTransparent = 0;
int colorValue, maskValue;
switch (pv)
{
case White:
colorValue = ColorWhite;
maskValue = MaskOpaque;
break;
case Black:
colorValue = ColorBlack;
maskValue = MaskOpaque;
break;
case Transparent:
default:
colorValue = ColorWhite;
maskValue = MaskTransparent;
break;
}
if (colorValue)
colorBitmap [y * (width / 8) + (x / 8)] |= (1 << (x % 8));
if (maskValue)
maskBitmap [y * (width / 8) + (x / 8)] |= (1 << (x % 8));
}
const QCursor *kpMakeCursorLightCross ()
{
#if DEBUG_KP_CURSOR_LIGHT_CROSS
kdDebug () << "kpMakeCursorLightCross() " << endl;
#endif
const int side = 24;
const int byteSize = (side * side) / 8;
unsigned char *colorBitmap = new unsigned char [byteSize];
unsigned char *maskBitmap = new unsigned char [byteSize];
memset (colorBitmap, 0, byteSize);
memset (maskBitmap, 0, byteSize);
const int oddSide = side - 1;
const int strokeLen = oddSide * 3 / 8;
for (int i = 0; i < strokeLen; i++)
{
const enum PixelValue pv = (i % 2) ? Black : White;
#define X_(val) (val)
#define Y_(val) (val)
#define DRAW(y,x) setPixel (colorBitmap, maskBitmap, side, (y), (x), pv)
// horizontal
DRAW (Y_(side / 2), X_(1 + i));
DRAW (Y_(side / 2), X_(side - 1 - i));
// vertical
DRAW (Y_(1 + i), X_(side / 2));
DRAW (Y_(side - 1 - i), X_(side / 2));
#undef DRAW
#undef Y_
#undef X_
}
QCursor *cursor = new QCursor (QBitmap (side, side, colorBitmap, true/*little endian bit order*/),
QBitmap (side, side, maskBitmap, true/*little endian bit order*/));
delete [] maskBitmap;
delete [] colorBitmap;
return cursor;
}
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