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Amiga Plus 1997 #1
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Amiga Plus CD - 1997 - No. 01.iso
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pd
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programmierung
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mesa-1.2.8
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src-tk
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cursor.c
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C/C++ Source or Header
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1996-05-27
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74 lines
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gltk.h"
#include "private.h"
/******************************************************************************/
#define MAX_CURSOR 32
typedef struct _cursorRec {
GLint id;
Cursor cursor;
} cursorRec;
int cursorNum = 0;
cursorRec cursors[MAX_CURSOR];
/******************************************************************************/
void tkNewCursor(GLint id, GLubyte *shapeBuf, GLubyte *maskBuf, GLenum fgColor,
GLenum bgColor, GLint hotX, GLint hotY)
{
GLubyte buf[32];
Pixmap shapeMap, maskMap;
XColor c1, c2;
int i;
if (cursorNum == MAX_CURSOR-1) {
return;
}
for (i = 0; i < 32; i += 2) {
buf[i] = shapeBuf[i+1];
buf[i+1] = shapeBuf[i];
}
shapeMap = XCreatePixmapFromBitmapData(xDisplay, wRoot, (char*) buf,
16, 16, 1, 0, 1);
for (i = 0; i < 32; i += 2) {
buf[i] = maskBuf[i+1];
buf[i+1] = maskBuf[i];
}
maskMap = XCreatePixmapFromBitmapData(xDisplay, wRoot, (char*) buf,
16, 16, 1, 0, 1);
c1.red = (unsigned short)(tkRGBMap[fgColor][0] * 65535.0 + 0.5);
c1.green = (unsigned short)(tkRGBMap[fgColor][1] * 65535.0 + 0.5);
c1.blue = (unsigned short)(tkRGBMap[fgColor][2] * 65535.0 + 0.5);
c1.flags = DoRed | DoGreen | DoBlue;
c2.red = (unsigned short)(tkRGBMap[bgColor][0] * 65535.0 + 0.5);
c2.green = (unsigned short)(tkRGBMap[bgColor][1] * 65535.0 + 0.5);
c2.blue = (unsigned short)(tkRGBMap[bgColor][2] * 65535.0 + 0.5);
c2.flags = DoRed | DoGreen | DoBlue;
cursors[cursorNum].id = id;
cursors[cursorNum].cursor = XCreatePixmapCursor(xDisplay, shapeMap, maskMap,
&c1, &c2, hotX, hotY);
cursorNum++;
}
/******************************************************************************/
void tkSetCursor(GLint id)
{
int i;
for (i = 0; i < cursorNum; i++) {
if (cursors[i].id == id) {
XDefineCursor(xDisplay, w.wMain, cursors[i].cursor);
}
}
}
/******************************************************************************/