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engines/crab/text/TextManager.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.
+ *
+ * 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/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#ifndef CRAB_TEXTMANAGER_H
+#define CRAB_TEXTMANAGER_H
+
+#include "crab/vectors.h"
+#include "crab/image/Image.h"
+#include "crab/text/color.h"
+
+namespace Graphics {
+class Font;
+} // End of namespace Graphics
+
+namespace Crab {
+
+// We use this object as the key for all fonts
+typedef uint FontKey;
+
+// Since we use uint as a key for images, our loadImgKey function is loadNum
+#define LoadFontKey loadNum
+
+namespace pyrodactyl {
+namespace text {
+class TextManager {
+	// The collection of stored fonts
+	Common::Array<Graphics::Font *> _font;
+
+	// The size of the cache
+	int _cacheSize;
+
+	// The padding at the end of the background - this needs to be loaded from file later
+	Vector2i _padBg;
+
+	// The data stored in our cache - text and texture
+	struct TextCacheUnit {
+		Common::String _text;
+		int _col;
+		FontKey _font;
+
+		pyrodactyl::image::Image _img;
+		bool _empty;
+
+		TextCacheUnit() {
+			_empty = true;
+			_col = 0;
+			_font = 0;
+		}
+		~TextCacheUnit() {
+			_img.deleteImage();
+		}
+
+		bool EqualCol(int color) {
+			return _col == color;
+		}
+	};
+
+	// Text Cache - done to avoid having to render a texture every time text is drawn
+	Common::Array<TextCacheUnit> _cache;
+
+	// The oldest element in the text cache
+	int _oldest;
+
+	// The place to store all colors
+	ColorPool _colpool;
+
+	// The rectangle used to store the darkened rectangle coordinates
+	Rect _rect;
+
+	int search(const Common::String &text, int col, FontKey fontid);
+	int findFreeSlot();
+
+public:
+	TextManager() {
+		_oldest = 0;
+		_cacheSize = 30;
+	}
+
+	~TextManager() {}
+
+	void init();
+	void quit();
+	void reset();
+
+	Graphics::Font *getFont(const FontKey &fontid) {
+		return _font[fontid];
+	}
+
+	Graphics::ManagedSurface *renderTextBlended(const FontKey &font, const Common::String &text, const int &color);
+
+	void draw(const int &x, const int &y, const Common::String &text, const int &color,
+			  const FontKey &font = 0, const Align &align = ALIGN_LEFT, const bool &background = false);
+
+	void draw(const int &x, int y, const Common::String &text, const int &color, const FontKey &font, const Align &align,
+			  const uint &lineWidth, const uint &lineHeight, const bool &background = false);
+};
+
+} // End of namespace text
+} // End of namespace pyrodactyl
+
+} // End of namespace Crab
+
+#endif // CRAB_TEXTMANAGER_H