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/*-----------------------------------------------------------------------------
Copyright 2007 Milan Babuskov
This file is part of Vodovod
Vodovod 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
(at your option) any later version.
Vodovod 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 Vodovod in file COPYING; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------*/
#include <string>
#include <vector>
#include "config.h"
#include "SDL.h"
#include "SDL_mixer.h"
#include "njamfont.h"
#include "sutils.h"
#include "menu.h"
extern SDL_Surface *Screen;
//-----------------------------------------------------------------------------
Menu::Menu(NjamFont *font_ptr, int x, int y)
{
x_pos = x;
y_pos = y;
font = font_ptr;
indicator = 0;
firstIsTitleM = false;
}
//-----------------------------------------------------------------------------
Menu::~Menu()
{
if (background)
SDL_FreeSurface(background); // release background surface
}
//-----------------------------------------------------------------------------
bool Menu::process_keys() // up/down/enter/esc: return false on menu exit
{
SDLKey key = NjamGetch(false);
if (key == SDLK_UP || key > 499 && key == getKey(taUp))
indicator--;
if (key == SDLK_DOWN || key > 499 && key == getKey(taDown))
indicator++;
if (firstIsTitleM && indicator < 1 || !firstIsTitleM && indicator < 0)
indicator = options.size()-1;
if ((unsigned)indicator >= options.size())
indicator = (firstIsTitleM ? 1 : 0);
if (key == SDLK_ESCAPE)
return false;
if ((key == SDLK_RETURN || key == SDLK_KP_ENTER || key > 499 && key == getKey(taDrop)))
{
if (!onEnter())
return false;
}
return true;
}
//-----------------------------------------------------------------------------
void Menu::draw(bool flipit)
{
if (background)
SDL_BlitSurface(background, NULL, Screen, NULL);
render(); // draw some animations if needed, scroll, etc.
int i=0; // blit menu items
for (std::vector<std::string>::iterator it = options.begin(); it != options.end(); ++it)
{
font->WriteTextXY(Screen, x_pos, y_pos + i*font->GetCharHeight(), (*it).c_str());
i++;
}
SDL_Rect r; // blit rectangle around selected item
int border = 2;
int length = 0;
if (options.size() > (unsigned)indicator)
length = options[indicator].length();
r.x = x_pos-border;
r.y = y_pos+indicator*font->GetCharHeight()-2;
r.w = font->GetCharWidth() * length + 2*border;
r.h = font->GetCharHeight() + 2*border;
Box(Screen, r, 1, 255, 190, 50);
if (firstIsTitleM) // blit line below title (=first option)
{
border = 2;
length = options[0].length();
r.x = x_pos;
r.y = font->GetCharHeight() + y_pos - 1;
r.w = font->GetCharWidth() * length + 2*border;
r.h = 1;
Box(Screen, r, 1, 255, 190, 50);
}
if (flipit)
SDL_Flip(Screen);
}
//-----------------------------------------------------------------------------
void Menu::getDimensions(SDL_Rect& rect, int border, int minWidth)
{
unsigned int char_width = minWidth;
for (std::vector<std::string>::iterator it = options.begin(); it != options.end(); ++it)
if ((*it).length() > char_width)
char_width = (*it).length();
unsigned int char_height = options.size();
rect.w = (char_width+1) * font->GetCharWidth() + 2*border;
rect.h = char_height * font->GetCharHeight() + 2*border;
rect.x = x_pos-border;
rect.y = y_pos-border;
}
//-----------------------------------------------------------------------------
void Menu::start(int minWidth)
{
background = SDL_DisplayFormat(Screen); // save screen to buffer, so we can redraw
if (!background)
throw Exiter("Cannot make a copy of background");
SDL_Rect r;
getDimensions(r, 6, minWidth);
SurfaceEffect(background, r, fxDarkenAlot);
Box(background, r, 1, 255, 255, 0);
while (true)
{
Uint32 startTime = SDL_GetTicks();
draw(); // also waits for vsync
if (!process_keys())
return;
CheckMusic(0);
while (startTime + 34 > SDL_GetTicks())
SDL_Delay(1); // target about 30 fps
}
};
//-----------------------------------------------------------------------------
SDLKey Menu::Message(std::string text)
{
const int screenw = 800;
while (NjamGetch(false) != SDLK_LAST); // clear the buffer
int l = text.length();
int w = font->GetCharWidth();
draw(false); // render background
SDL_Rect dest;
NjamSetRect(dest, (screenw-l*w-50)/2, 195, l*w+50, 55);
SDL_FillRect(Screen, &dest, 0);
Uint32 FillColor = SDL_MapRGB(Screen->format, 220, 50, 0);
NjamSetRect(dest, (screenw-l*w-50)/2 + 1, 196, l*w+48, 53);
SDL_FillRect(Screen, &dest, FillColor);
NjamSetRect(dest, (screenw-l*w-30)/2, 205, l*w+30, 35);
SDL_FillRect(Screen, &dest, 0);
font->WriteTextXY(Screen, (screenw-l*w)/2, 215, text.c_str());
SDL_Flip(Screen);
return NjamGetch(true);
}
//-----------------------------------------------------------------------------
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