Merge pull request #818 from dreammaster/xeen

XEEN: Might & Magic engine

1 files changed, 194 insertions, 0 deletions

diff --git a/engines/xeen/screen.h b/engines/xeen/screen.h
new file mode 100644
index 0000000000..854a05a7cf
--- /dev/null
+++ b/engines/xeen/screen.h
@@ -0,0 +1,194 @@
+/* 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 XEEN_SCREEN_H
+#define XEEN_SCREEN_H
+
+#include "common/scummsys.h"
+#include "common/system.h"
+#include "common/array.h"
+#include "common/keyboard.h"
+#include "common/rect.h"
+#include "xeen/font.h"
+#include "xeen/sprites.h"
+#include "xeen/xsurface.h"
+
+namespace Xeen {
+
+#define SCREEN_WIDTH 320
+#define SCREEN_HEIGHT 200
+#define PALETTE_COUNT 256
+#define PALETTE_SIZE (256 * 3)
+#define GAME_WINDOW 28
+
+class XeenEngine;
+class Screen;
+
+struct DrawStruct {
+	SpriteResource *_sprites;
+	int _frame;
+	int _x;
+	int _y;
+	int _scale;
+	int _flags;
+
+	DrawStruct(int frame, int x, int y, int scale = 0, int flags = 0) :
+		_sprites(nullptr), _frame(frame), _x(x), _y(y), _scale(scale), _flags(flags) {}
+	DrawStruct(): _sprites(nullptr), _frame(0), _x(0), _y(0), _scale(0), _flags(0) {}
+};
+
+class Window: public XSurface {
+private:
+	XeenEngine *_vm;
+	Common::Rect _bounds;
+	Common::Rect _innerBounds;
+	XSurface _savedArea;
+	int _a;
+	int _border;
+	int _xLo, _xHi;
+	int _ycL, _ycH;
+
+	void open2();
+public:
+	bool _enabled;
+public:
+	virtual void addDirtyRect(const Common::Rect &r);
+public:
+	Window();
+	Window(const Window &src);
+	Window(XeenEngine *vm, const Common::Rect &bounds, int a, int border,
+		int xLo, int ycL, int xHi, int ycH);
+
+	void setBounds(const Common::Rect &r);
+
+	const Common::Rect &getBounds() { return _bounds; }
+
+	void open();
+
+	void close();
+
+	/**
+	 * Update the window
+	 */
+	void update();
+
+	void frame();
+
+	/**
+	 * Fill the content area of a window with the current background color 
+	 */
+	void fill();
+
+	const char *writeString(const Common::String &s);
+
+	void drawList(DrawStruct *items, int count);
+
+	int getString(Common::String &line, uint maxLen, int maxWidth);
+};
+
+class Screen: public FontSurface {
+private:
+	XeenEngine *_vm;
+	Common::List<Common::Rect> _dirtyRects;
+	byte _mainPalette[PALETTE_SIZE];
+	byte _tempPalette[PALETTE_SIZE];
+	XSurface _pages[2];
+	XSurface _savedScreens[10];
+	bool _fadeIn;
+
+	void mergeDirtyRects();
+
+	bool unionRectangle(Common::Rect &destRect, const Common::Rect &src1, const Common::Rect &src2);
+
+	/**
+	 * Mark the entire screen for drawing
+	 */
+	void drawScreen();
+
+	void fadeInner(int step);
+
+	void updatePalette();
+
+	void updatePalette(const byte *pal, int start, int count16);
+public:
+	/**
+	 * Adds an area that requires redrawing on the next frame update
+	 */
+	virtual void addDirtyRect(const Common::Rect &r);
+public:
+	Common::Array<Window> _windows;
+
+	Common::Array<Window *> _windowStack;
+public:
+	Screen(XeenEngine *vm);
+
+	virtual ~Screen();
+
+	void setupWindows();
+
+	void closeWindows();
+
+	void update();
+
+	/**
+	 * Load a palette resource into the temporary palette
+	 */
+	void loadPalette(const Common::String &name);
+
+	/**
+	 * Load a background resource into memory
+	 */
+	void loadBackground(const Common::String &name);
+
+	/**
+	 * Copy a loaded background into a display page
+	 */
+	void loadPage(int pageNum);
+
+	void freePages();
+
+	/**
+	 * Merge the two pages along a horizontal split point
+	 */
+	void horizMerge(int xp);
+
+	/**
+	 * Merge the two pages along a vertical split point
+	 */
+	void vertMerge(int yp);
+
+	void draw(void *data = nullptr);
+
+	void fadeIn(int step);
+
+	void fadeOut(int step);
+
+	void saveBackground(int slot = 1);
+
+	void restoreBackground(int slot = 1);
+
+	void frameWindow(uint bgType);
+};
+
+} // End of namespace Xeen
+
+#endif /* XEEN_SCREEN_H */