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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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; either version 2 of the License, or
* any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "progressbar.h"
#include "gui.h"
// To draw primitives without dependencies
void DrawPixel(SDL_Surface * screen, int x, int y, Uint8 R, Uint8 G, Uint8 B);
void DrawLine(SDL_Surface * screen, int x1, int y1, int x2, int y2, unsigned char Red, unsigned char Green, unsigned char Blue);
ProgressBar::ProgressBar(float progress, int x, int y, int width, unsigned char red, unsigned green, unsigned char blue)
{
setProgress(progress);
Red = red;
Green = green;
Blue = blue;
X = x;
Y = y;
Width = width;
}
void ProgressBar::draw(gcn::Graphics *graphics)
{
#ifndef USE_OPENGL
int absx, absy;
getAbsolutePosition(absx, absy);
// We're modifying pixels so we have to lock the screen.
SDL_LockSurface(screen);
// outer bar
DrawLine(screen, absx+X+PROGRESSBAR_HEIGHT, absy+Y, absx+X+Width, absy+Y, abs(Red-70), abs(Green-70), abs(Blue-70));
DrawLine(screen, absx+X, absy+Y+PROGRESSBAR_HEIGHT, absx+X+Width-PROGRESSBAR_HEIGHT, absy+Y+PROGRESSBAR_HEIGHT, abs(Red-70), abs(Green-70), abs(Blue-70));
DrawLine(screen, absx+X+PROGRESSBAR_HEIGHT, absy+Y, absx+X, absy+Y+PROGRESSBAR_HEIGHT, abs(Red-70), abs(Green-70), abs(Blue-70));
DrawLine(screen, absx+X+Width, absy+Y, absx+X+Width-PROGRESSBAR_HEIGHT, absy+Y+PROGRESSBAR_HEIGHT, abs(Red-70), abs(Green-70), abs(Blue-70));
// Shadow of outer bar
DrawLine(screen, absx+X+1, absy+Y+PROGRESSBAR_HEIGHT+1, absx+X+Width-PROGRESSBAR_HEIGHT, absy+Y+PROGRESSBAR_HEIGHT+1, 20, 20, 20);
DrawLine(screen, absx+X+Width+1, absy+Y, absx+X+Width-PROGRESSBAR_HEIGHT+1, absy+Y+PROGRESSBAR_HEIGHT, 20, 20, 20);
// Inner bar
int Temp = 0;
for(int i = 1; i < PROGRESSBAR_HEIGHT; i++)
{
Temp = absx+X+int(float(Width)*progress)-i-1;
if (Temp < (absx + X + PROGRESSBAR_HEIGHT + 1 - i)) Temp = (absx + X + PROGRESSBAR_HEIGHT + 1 - i);
DrawLine(screen, absx + X + PROGRESSBAR_HEIGHT + 1 - i, absy+Y+i, Temp, absy+Y+i, Red, Green, Blue);
}
// Shadow of inner bar
Temp = absx+X+int(float(Width)*progress)-2;
if ( Temp < (absx+X+PROGRESSBAR_HEIGHT+1) ) Temp = absx+X+PROGRESSBAR_HEIGHT;
DrawLine(screen, absx+X+PROGRESSBAR_HEIGHT+1, absy+Y+1, Temp, absy+Y+1, abs(Red-40), abs(Green-40), abs(Blue-40));
DrawLine(screen, absx+X+PROGRESSBAR_HEIGHT, absy+Y+1, absx+X+2, absy+Y+PROGRESSBAR_HEIGHT-1, abs(Red-40), abs(Green-40), abs(Blue-40));
SDL_UnlockSurface(screen);
#endif
}
void ProgressBar::setProgress(float progress)
{
this->progress = progress;
}
float ProgressBar::getProgress()
{
return progress;
}
// This function draws a pixel on the screen depending on the resolution etc...
void DrawPixel(SDL_Surface * screen, int x, int y, Uint8 R, Uint8 G, Uint8 B)
{
Uint32 color = SDL_MapRGB(screen->format, R, G, B);
if ( (x >= screen->w) || (x < 0) )
return;
if ( (y >= screen->h) || (y < 0) )
return;
switch (screen->format->BytesPerPixel)
{
case 1: // Pour 8 BPP
{
Uint8 *bufp;
bufp = (Uint8 *) screen->pixels + y * screen ->pitch + x;
*bufp = color;
}
break;
case 2: // 15 ou 16 BPP
{
Uint16 * bufp;
bufp = (Uint16 *)screen->pixels + y * screen->pitch/2 + x;
*bufp = color;
}
break;
case 3: // 24 BPP
{
Uint8 *bufp;
bufp = (Uint8 *)screen->pixels + y * screen->pitch + x * 3;
if (SDL_BYTEORDER == SDL_LIL_ENDIAN)
{
bufp[0] = color;
bufp[1] = color >> 8;
bufp[2] = color >> 16;
} else {
bufp[2] = color;
bufp[1] = color >> 8;
bufp[0] = color >> 16;
}
}
break;
case 4: // 32 BPP, the most useful !
{
Uint32 *bufp;
bufp = (Uint32 *)screen->pixels + y * screen->pitch/4 + x;
*bufp = color;
}
break;
}
} // End of DrawPixel
// Draw A line.
void DrawLine(SDL_Surface * screen, int x1, int y1, int x2, int y2, unsigned char Red, unsigned char Green, unsigned char Blue)
{
float a, b, Temp_x1, Temp_x2, Temp_y1, Temp_y2;
Temp_x1 = x1;
Temp_x2 = x2;
Temp_y1 = y1;
Temp_y2 = y2;
if ( (x1-x2) != 0)
{
a=(Temp_y1-Temp_y2)/(Temp_x1-Temp_x2); // the a in y=ax+b
}
else // The line is vertical
{
if ( y1 < y2)
{
for (int Y=y1; Y<=y2; Y++)
{
DrawPixel(screen, x1, Y, Red, Green, Blue);
}
}
else
{
for (int Y=y2; Y<=y1; Y++)
{
DrawPixel(screen, x1, Y, Red, Green, Blue);
}
}
return;
}
b=y1-a*x1;
if ( x1 < x2)
{
for (int X = x1; X <= x2; X++)
{
DrawPixel(screen, X, int(a*X+b), Red, Green, Blue);
}
}
else
{
for (int X = x2; X <= x1; X++)
{
DrawPixel(screen, X, int(a*X+b), Red, Green, Blue);
}
}
if ( y1 < y2)
{
for (int Y = y1; Y <= y2; Y++)
{
if (a != 0) DrawPixel(screen, int((Y-b)/a), Y, Red, Green, Blue);
}
}
else
{
for (int Y = y2; Y <= y1; Y++)
{
if (a != 0) DrawPixel(screen, int((Y-b)/a), Y, Red, Green, Blue);
}
}
} // End of DrawLine
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