aboutsummaryrefslogtreecommitdiff
path: root/engines/sword25/gfx/fontresource.cpp
blob: 78276338da47ab15ec1b7e83bdbbc33b806bb5f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/* 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.
 *
 */

/*
 * 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