psutil.h

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/*
 * Author: Andrew Robberts
 *
 * Copyright (C) 2004 Atomic Blue ([email protected], http://www.atomicblue.org) 
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation (version 2 of the License)
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

#ifndef PSUTIL_H
#define PSUTIL_H

#include <cstypes.h>
#include <csutil/csstring.h>

// Colour support. Only supported by pawsMessageTextBox for now.
// 1 is a control character which should be filtered out of user text input.
// The code is a fixed-size of 8 bytes.
// byte 1 is 033 which is the control character
// 2-3 are the R value in hex
// 4-5 are the G value in hex
// 6-7 are the B value in hex
// 8 is the text size in decimal

// Shortcut color/size codes
// Safe for use with tolower, toupper, UTF-8
#define REDCODE "\033ff00000" 
#define GREENCODE "\03300ff000"
#define BLUECODE "\0330000ff0" 
#define WHITECODE "\033ffffff0"
#define DEFAULTCODE "\0330000000" 
#define ESCAPECODE '\033'
#define LENGTHCODE 8

class psColours
{
public:
        static bool ParseColour(const char* str, int& r, int& g, int& b, int& size)
        {
                if(strlen(str) < LENGTHCODE || str[0] != '\033')
                        return false;
                str++;
                r = DecodeHex(str, 2);
                if(r == -1)
                        return false;
                str += 2;
                g = DecodeHex(str, 2);
                if(g == -1)
                        return false;
                str += 2;
                b = DecodeHex(str, 2);
                if(b == -1)
                        return false;
                str += 2;
                size = DecodeHex(str, 1);
                if(size == -1)
                        return false;
                str++;
                return true;
        }
        
        // Decode a hex string, can accept both uppercase and lowercase.
        // -1 indicates an error occurred.
        static int DecodeHex(const char* str, int len)
        {
                int count = 0;
                for(int i = 0; i < len; i++)
                {
                        if(str[i] >= 'a' && str[i] <= 'f')
                                count += (str[i] - 'a') + 10;
                        else if(str[i] >= '0' && str[i] <= '9')
                                count += (str[i] - '0');
                        else if(str[i] >= 'A' && str[i] <= 'F')
                                count += (str[i] - 'A') + 10;
                        else return -1;
                        count *= 16;
                }
                return count;
        }
};

void GetTimeOfDay(csString& string);

struct psPoint
{
    int x;
    int y;

    psPoint ():x(0), y(0) { }

    psPoint (int iX, int iY):x(iX), y(iY) { }
};

class ScopedTimer; // Forward declaration

class ScopedTimerCB
{
public:
    virtual void ScopedTimerCallback(const ScopedTimer* timer) = 0;
    virtual ~ScopedTimerCB() {}
};


class ScopedTimer
{
    csTicks         start;    
    csTicks         timeUsed; 
    csTicks         limit;    
    ScopedTimerCB*  callback; 
    csString        comment;  
         
public:

    ScopedTimer(csTicks limit, const char * format, ... );

    ScopedTimer(csTicks limit, ScopedTimerCB* callback );
    
    ~ScopedTimer();

    csTicks TimeUsed() const;
};

float psGetRandom();

uint32 psGetRandom(uint32 limit);



#endif