Initial commit

engines/sword25/gfx/fontresource.cpp

@@ -0,0 +1,138 @@
+/* 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 Broken Sword 2.5 engine
+ *
+ * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
+ *
+ * Licensed under GNU GPL v2
+ *
+ */
+
+#include "sword25/kernel/kernel.h"
+#include "sword25/kernel/resmanager.h" // for PRECACHE_RESOURCES
+#include "sword25/package/packagemanager.h"
+
+#include "sword25/gfx/fontresource.h"
+
+namespace Sword25 {
+
+enum {
+	DEFAULT_LINEHEIGHT = 20,
+	DEFAULT_GAPWIDTH = 1
+};
+
+FontResource::FontResource(Kernel *pKernel, const Common::String &fileName) :
+	_pKernel(pKernel),
+	_valid(false),
+	Resource(fileName, Resource::TYPE_FONT),
+	Common::XMLParser() {
+
+	// Get a pointer to the package manager
+	assert(_pKernel);
+	PackageManager *pPackage = _pKernel->getPackage();
+	assert(pPackage);
+
+	// Load the contents of the file
+	uint fileSize;
+	char *xmlData = pPackage->getXmlFile(getFileName(), &fileSize);
+	if (!xmlData) {
+		error("Could not read \"%s\".", getFileName().c_str());
+		return;
+	}
+
+	// Parse the contents
+	if (!loadBuffer((const byte *)xmlData, fileSize))
+		return;
+
+	_valid = parse();
+	close();
+	free(xmlData);
+}
+
+bool FontResource::parserCallback_font(ParserNode *node) {
+	// Get the attributes of the font
+	Common::String bitmapFilename = node->values["bitmap"];
+
+	if (!parseIntegerKey(node->values["lineheight"], 1, &_lineHeight)) {
+		warning("Illegal or missing lineheight attribute in <font> tag in \"%s\". Assuming default (\"%d\").",
+		                 getFileName().c_str(), DEFAULT_LINEHEIGHT);
+		_lineHeight = DEFAULT_LINEHEIGHT;
+	}
+
+	if (!parseIntegerKey(node->values["gap"], 1, &_gapWidth)) {
+		warning("Illegal or missing gap attribute in <font> tag in \"%s\". Assuming default (\"%d\").",
+		                 getFileName().c_str(), DEFAULT_GAPWIDTH);
+		_gapWidth = DEFAULT_GAPWIDTH;
+	}
+
+	// Get a reference to the package manager
+	assert(_pKernel);
+	PackageManager *pPackage = _pKernel->getPackage();
+	assert(pPackage);
+
+	// Get the full path and filename for the bitmap resource
+	_bitmapFileName = pPackage->getAbsolutePath(bitmapFilename);
+	if (_bitmapFileName == "") {
+		error("Image file \"%s\" was specified in <font> tag of \"%s\" but could not be found.",
+		               _bitmapFileName.c_str(), getFileName().c_str());
+	}
+
+#ifdef PRECACHE_RESOURCES
+	// Pre-cache the resource
+	if (!_pKernel->getResourceManager()->precacheResource(_bitmapFileName)) {
+		error("Could not precache \"%s\".", _bitmapFileName.c_str());
+	}
+#else
+	Resource *pResource = _pKernel->getResourceManager()->requestResource(_bitmapFileName);
+	pResource->release(); //unlock precached resource
+#endif
+
+	return true;
+}
+
+bool FontResource::parserCallback_character(ParserNode *node) {
+	// Get the attributes of the character
+	int charCode, top, left, right, bottom;
+
+	if (!parseIntegerKey(node->values["code"], 1, &charCode) || (charCode < 0) || (charCode >= 256)) {
+		return parserError("Illegal or missing code attribute in <character> tag in '" + getFileName() + "'.");
+	}
+
+	if (!parseIntegerKey(node->values["top"], 1, &top) || (top < 0)) {
+		return parserError("Illegal or missing top attribute in <character> tag in '" + getFileName() + "'.");
+	}
+	if (!parseIntegerKey(node->values["left"], 1, &left) || (left < 0)) {
+		return parserError("Illegal or missing left attribute in <character> tag in '" + getFileName() + "'.");
+	}
+	if (!parseIntegerKey(node->values["right"], 1, &right) || (right < 0)) {
+		return parserError("Illegal or missing right attribute in <character> tag in '" + getFileName() + "'.");
+	}
+	if (!parseIntegerKey(node->values["bottom"], 1, &bottom) || (bottom < 0)) {
+		return parserError("Illegal or missing bottom attribute in <character> tag in '" + getFileName() + "'.");
+	}
+
+	_characterRects[charCode] = Common::Rect(left, top, right, bottom);
+	return true;
+}
+
+} // End of namespace Sword25