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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef TINSEL_SCROLL_H // prevent multiple includes
#define TINSEL_SCROLL_H
namespace Tinsel {
#define SCROLLPIXELS 8 // Number of pixels to scroll per iteration
// Distance from edge that triggers a scroll
#define RLDISTANCE (TinselV2 ? g_sd.xTrigger : 50)
#define UDISTANCE (TinselV2 ? g_sd.yTriggerTop : 20)
#define DDISTANCE (TinselV2 ? g_sd.yTriggerBottom : 20)
// Number of iterations to make
#define RLSCROLL 160 // 20*8 = 160 = half a screen
#define UDSCROLL 100 // 12.5*8 = 100 = half a screen
// These structures defined here so boundaries can be saved
struct NOSCROLLB {
int ln;
int c1;
int c2;
};
#define MAX_HNOSCROLL 10
#define MAX_VNOSCROLL 10
struct SCROLLDATA{
NOSCROLLB NoVScroll[MAX_VNOSCROLL]; // Vertical no-scroll boundaries
NOSCROLLB NoHScroll[MAX_HNOSCROLL]; // Horizontal no-scroll boundaries
unsigned NumNoV, NumNoH; // Counts of no-scroll boundaries
// DW2 fields
int xTrigger;
int xDistance;
int xSpeed;
int yTriggerTop;
int yTriggerBottom;
int yDistance;
int ySpeed;
};
void DontScrollCursor();
void DoScrollCursor();
void SetNoScroll(int x1, int y1, int x2, int y2);
void DropScroll();
void ScrollProcess(CORO_PARAM, const void *);
void ScrollFocus(int actor);
int GetScrollFocus();
void ScrollTo(int x, int y, int xIter, int yIter);
void KillScroll();
void GetNoScrollData(SCROLLDATA *ssd);
void RestoreNoScrollData(SCROLLDATA *ssd);
void SetScrollParameters(int xTrigger, int xDistance, int xSpeed, int yTriggerTop,
int yTriggerBottom, int yDistance, int ySpeed);
bool IsScrolling();
} // End of namespace Tinsel
#endif /* TINSEL_SCROLL_H */
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