toolkit/range_buttons.c

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/************************************************************************
*            Atrinik, a Multiplayer Online Role Playing Game            *
*                                                                       *
*    Copyright (C) 2009-2011 Alex Tokar and Atrinik Development Team    *
*                                                                       *
* Fork from Daimonin (Massive Multiplayer Online Role Playing Game)     *
* and Crossfire (Multiplayer game for X-windows).                       *
*                                                                       *
* 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; either version 2 of the License, or     *
* (at your option) any later version.                                   *
*                                                                       *
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.             *
*                                                                       *
* The author can be reached at admin@atrinik.org                        *
************************************************************************/

#include <global.h>

static uint32 ticks = 0;

int range_buttons_show(int x, int y, int *val, int advance)
{
    int state, mx, my;

    /* Get state of the mouse and the x/y. */
    state = SDL_GetMouseState(&mx, &my);

    /* Show the two range buttons. */
    sprite_blt(Bitmaps[BITMAP_RANGE_BUTTONS_OFF], x, y, NULL, NULL);

    /* Check the Y position. */
    if (my > y && my < y + Bitmaps[BITMAP_RANGE_BUTTONS_OFF]->bitmap->h && state == SDL_BUTTON(SDL_BUTTON_LEFT) && (!ticks || SDL_GetTicks() - ticks > 125))
    {
        /* If the left range button was clicked, decrease the value. */
        if (mx > x && mx < x + Bitmaps[BITMAP_RANGE_BUTTONS_LEFT]->bitmap->w)
        {
            sprite_blt(Bitmaps[BITMAP_RANGE_BUTTONS_LEFT], x, y, NULL, NULL);
            *val -= advance;
            ticks = SDL_GetTicks();
            return 1;
        }
        /* Otherwise increase it. */
        else if (mx > x + Bitmaps[BITMAP_RANGE_BUTTONS_LEFT]->bitmap->w && mx < x + Bitmaps[BITMAP_RANGE_BUTTONS_LEFT]->bitmap->w + Bitmaps[BITMAP_RANGE_BUTTONS_LEFT]->bitmap->w)
        {
            sprite_blt(Bitmaps[BITMAP_RANGE_BUTTONS_RIGHT], x + Bitmaps[BITMAP_RANGE_BUTTONS_LEFT]->bitmap->w, y, NULL, NULL);
            *val += advance;
            ticks = SDL_GetTicks();
            return 1;
        }
    }

    return 0;
}