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107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef TINSEL_SCROLL_H // prevent multiple includes
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#define TINSEL_SCROLL_H
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namespace Tinsel {
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#define MAX_HNOSCROLL 10
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#define MAX_VNOSCROLL 10
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// These structures defined here so boundaries can be saved
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struct NOSCROLLB {
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int ln;
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int c1;
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int c2;
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};
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struct SCROLLDATA {
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NOSCROLLB NoVScroll[MAX_VNOSCROLL]; // Vertical no-scroll boundaries
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NOSCROLLB NoHScroll[MAX_HNOSCROLL]; // Horizontal no-scroll boundaries
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unsigned NumNoV, NumNoH; // Counts of no-scroll boundaries
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// DW2 fields
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int xTrigger;
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int xDistance;
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int xSpeed;
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int yTriggerTop;
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int yTriggerBottom;
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int yDistance;
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int ySpeed;
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};
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class Scroll {
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public:
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Scroll();
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void DontScrollCursor();
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void DoScrollCursor();
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void SetNoScroll(int x1, int y1, int x2, int y2);
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void DropScroll();
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void ScrollFocus(int actor);
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int GetScrollFocus();
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void ScrollTo(int x, int y, int xIter, int yIter);
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void KillScroll();
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void GetNoScrollData(SCROLLDATA *ssd);
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void RestoreNoScrollData(SCROLLDATA *ssd);
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void SetScrollParameters(int xTrigger, int xDistance, int xSpeed, int yTriggerTop,
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int yTriggerBottom, int yDistance, int ySpeed);
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bool IsScrolling();
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void ScrollImage();
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void MonitorScroll();
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void InitScroll(int width, int height);
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private:
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void NeedScroll(int direction);
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void RestoreScrollDefaults();
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int _leftScroll, _downScroll; // Number of iterations outstanding
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int _scrollActor;
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MOVER *_pScrollMover;
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int _oldx, _oldy;
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/** Boundaries and numbers of boundaries */
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SCROLLDATA _scrollData;
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int _imageW, _imageH;
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bool _scrollCursor; // If a TAG or EXIT polygon is clicked on,
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// the cursor is kept over that polygon
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// whilst scrolling
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int _scrollPixelsX, _scrollPixelsY;
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};
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void ScrollProcess(CORO_PARAM, const void *);
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} // End of namespace Tinsel
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#endif /* TINSEL_SCROLL_H */
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