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engines/buried/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 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 BURIED_GRAPHICS_H
+#define BURIED_GRAPHICS_H
+
+#include "common/rect.h"
+#include "common/scummsys.h"
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace Graphics {
+class Font;
+struct Surface;
+}
+
+namespace Buried {
+
+class BuriedEngine;
+
+enum Cursor {
+	kCursorNone            =     0,
+
+	// Windows cursors
+	kCursorArrow           = 32512,
+	kCursorWait            = 32514,
+
+	// Buried in Time Cursors
+	kCursorEmptyArrow      =   100,
+	kCursorFinger          =   101,
+	kCursorMagnifyingGlass =   102,
+	kCursorOpenHand        =   103,
+	kCursorClosedHand      =   104,
+	kCursorPutDown         =   105,
+	kCursorNextPage        =   106,
+	kCursorPrevPage        =   107,
+	kCursorMoveUp          =   108,
+	kCursorMoveDown        =   109,
+	kCursorLocateA         =   110,
+	kCursorLocateB         =   111,
+	kCursorArrowUp         =   112,
+	kCursorArrowLeft       =   113,
+	kCursorArrowDown       =   114,
+	kCursorArrowRight      =   115
+};
+
+enum TextAlign {
+	kTextAlignLeft,
+	kTextAlignCenter,
+	kTextAlignRight
+};
+
+class GraphicsManager {
+public:
+	GraphicsManager(BuriedEngine *vm);
+	~GraphicsManager();
+
+	byte *getDefaultPalette() const { return _palette; }
+	Graphics::Font *createFont(int size, bool bold = false) const;
+	Cursor setCursor(Cursor newCursor);
+	void toggleCursor(bool show);
+	Graphics::Surface *getBitmap(uint32 bitmapID);
+	Graphics::Surface *getBitmap(const Common::Path &fileName, bool required = true);
+	uint32 getColor(byte r, byte g, byte b);
+
+	void invalidateRect(const Common::Rect &rect, bool erase = true);
+	const Common::Rect &getDirtyRect() const { return _dirtyRect; }
+
+	void markMouseMoved() { _mouseMoved = true; }
+	void updateScreen(bool drawWindows = true);
+	Graphics::Surface *getScreen() const { return _screen; }
+	bool needsErase() const { return _needsErase; }
+
+	void blit(const Graphics::Surface *surface, int x, int y);
+	void blit(const Graphics::Surface *surface, int x, int y, uint width, uint height);
+	void blit(const Graphics::Surface *surface, const Common::Rect &srcRect, const Common::Rect &dstRect);
+	void fillRect(const Common::Rect &rect, uint32 color);
+	void keyBlit(Graphics::Surface *dst, int xDst, int yDst, int w, int h, const Graphics::Surface *src, uint xSrc, uint ySrc, uint32 transColor);
+	void keyBlit(Graphics::Surface *dst, int xDst, int yDst, int w, int h, const Graphics::Surface *src, uint xSrc, uint ySrc, byte rTrans, byte gTrans, byte bTrans);
+	void opaqueTransparentBlit(Graphics::Surface *dst, int xDst, int yDst, int w, int h, const Graphics::Surface *src, uint xSrc, uint ySrc, int opacityValue, byte r, byte g, byte b);
+	bool checkPointAgainstMaskedBitmap(const Graphics::Surface *bitmap, int x, int y, const Common::Point &point, byte rTrans, byte gTrans, byte bTrans);
+	void crossBlit(Graphics::Surface *dst, int xDst, int yDst, uint w, uint h, const Graphics::Surface *src, uint xSrc, uint ySrc);
+	void renderText(Graphics::Surface *dst, Graphics::Font *font, const Common::String &text, int x, int y, int w, int h, uint32 color, int lineHeight, TextAlign textAlign = kTextAlignLeft, bool centerVertically = false);
+	void renderText(Graphics::Surface *dst, Graphics::Font *font, const Common::U32String &text, int x, int y, int w, int h, uint32 color, int lineHeight, TextAlign textAlign = kTextAlignLeft, bool centerVertically = false);
+	void drawEllipse(const Common::Rect &rect, uint32 color);
+
+	Graphics::Surface *remapPalettedFrame(const Graphics::Surface *frame, const byte *palette);
+
+	int computeHPushOffset(int speed);
+	int computeVPushOffset(int speed);
+
+private:
+	BuriedEngine *_vm;
+	Cursor _curCursor;
+
+	Common::Rect _dirtyRect;
+	bool _mouseMoved;
+	Graphics::Surface *_screen;
+	byte *_palette;
+	bool _needsErase;
+
+	byte *createDefaultPalette() const;
+	Graphics::Surface *getBitmap(Common::SeekableReadStream *stream);
+
+	Graphics::Font *createArialFont(int size, bool bold) const;
+
+	Graphics::Font *createMSGothicFont(int size, bool bold) const;
+};
+
+/**
+ * RAII method of changing a cursor temporarily and reset
+ * to the previous one on destruction.
+ */
+class TempCursorChange {
+public:
+	TempCursorChange(Cursor cursor);
+	~TempCursorChange();
+
+private:
+	Cursor _prevCursor;
+};
+
+} // End of namespace Buried
+
+#endif