Initial commit

engines/sci/graphics/scifont.h

@@ -0,0 +1,93 @@
+/* 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/>.
+ *
+ */
+
+#ifndef SCI_GRAPHICS_SCIFONT_H
+#define SCI_GRAPHICS_SCIFONT_H
+
+#include "sci/resource/resource.h"
+#include "sci/graphics/helpers.h"
+#include "sci/util.h"
+
+namespace Sci {
+
+#ifdef ENABLE_SCI32
+enum {
+	kSci32SystemFont = -1
+};
+#endif
+
+class GfxFont {
+public:
+	GfxFont() {}
+	virtual ~GfxFont() {}
+
+	virtual GuiResourceId getResourceId() { return 0; }
+	virtual byte getHeight() { return 0; }
+	virtual bool isDoubleByte(uint16 chr) { return false; }
+	virtual byte getCharWidth(uint16 chr) { return 0; }
+	virtual byte getCharHeight(uint16 chr) { return 0; }
+	virtual void draw(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput) {}
+	virtual void drawToBuffer(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput, byte *buffer, int16 width, int16 height) {}
+};
+
+
+/**
+ * Font class, handles loading of font resources and drawing characters to screen
+ *  every font resource has its own instance of this class
+ */
+class GfxFontFromResource : public GfxFont {
+public:
+	GfxFontFromResource(ResourceManager *resMan, GfxScreen *screen, GuiResourceId resourceId);
+	~GfxFontFromResource() override;
+
+	GuiResourceId getResourceId() override;
+	uint8 getHeight() override;
+	uint8 getCharWidth(uint16 chr) override;
+	void draw(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput) override;
+#ifdef ENABLE_SCI32
+	// SCI2/2.1 equivalent
+	void drawToBuffer(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput, byte *buffer, int16 width, int16 height) override;
+#endif
+
+private:
+	uint8 getCharHeight(uint16 chr) override;
+	SciSpan<const byte> getCharData(uint16 chr);
+
+	ResourceManager *_resMan;
+	GfxScreen *_screen;
+
+	Resource *_resource;
+	SciSpan<const byte> _resourceData;
+	GuiResourceId _resourceId;
+
+	struct Charinfo {
+		uint8 width, height;
+		int16 offset;
+	};
+
+	uint8 _fontHeight;
+	uint16 _numChars;
+	Charinfo *_chars;
+};
+
+} // End of namespace Sci
+
+#endif // SCI_GRAPHICS_SCIFONT_H