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engines/pegasus/graphics.h

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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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1995-1997 Presto Studios, Inc.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef PEGASUS_GRAPHICS_H
+#define PEGASUS_GRAPHICS_H
+
+#include "common/rect.h"
+#include "common/str.h"
+#include "common/system.h"
+#include "graphics/surface.h"
+
+#include "pegasus/constants.h"
+#include "pegasus/pegasus.h"
+#include "pegasus/util.h"
+
+namespace Pegasus {
+
+class Cursor;
+class DisplayElement;
+class PegasusEngine;
+class ScreenFader;
+
+class GraphicsManager {
+friend class Cursor;
+public:
+	GraphicsManager(PegasusEngine *vm);
+	~GraphicsManager();
+
+	void addDisplayElement(DisplayElement *element);
+	void removeDisplayElement(DisplayElement *element);
+	void invalRect(const Common::Rect &rect);
+	DisplayOrder getBackOfActiveLayer() const { return _backLayer; }
+	DisplayOrder getFrontOfActiveLayer() const { return _frontLayer; }
+	void updateDisplay();
+	Graphics::Surface *getCurSurface() { return _curSurface; }
+	void setCurSurface(Graphics::Surface *surface) { _curSurface = surface; }
+	Graphics::Surface *getWorkArea() { return &_workArea; }
+	DisplayElement *findDisplayElement(const DisplayElementID id);
+	void shakeTheWorld(TimeValue time, TimeScale scale);
+	void enableErase();
+	void disableErase();
+	void enableUpdates();
+	void disableUpdates();
+
+	// These default to black
+	void doFadeOutSync(const TimeValue = kOneSecondPerThirtyTicks, const TimeScale = kThirtyTicksPerSecond, bool isBlack = true);
+	void doFadeInSync(const TimeValue = kOneSecondPerThirtyTicks, const TimeScale = kThirtyTicksPerSecond, bool isBlack = true);
+
+private:
+	PegasusEngine *_vm;
+
+	bool _erase;
+	Common::Rect _dirtyRect;
+	DisplayOrder _backLayer, _frontLayer;
+	DisplayElement *_firstDisplayElement, *_lastDisplayElement;
+	Graphics::Surface _workArea, *_curSurface;
+
+	// Shake Shake Shake!
+	static const int kMaxShakeOffsets = 17;
+	Common::Point _shakeOffsets[kMaxShakeOffsets];
+	void newShakePoint(int32 index1, int32 index2, int32 maxRadius);
+
+	bool _updatesEnabled;
+	ScreenFader *_screenFader;
+};
+
+} // End of namespace Pegasus
+
+#endif