Initial commit

engines/ultima/nuvie/fonts/bmp_font.cpp

@@ -0,0 +1,133 @@
+/* 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/>.
+ *
+ */
+
+#include "ultima/shared/std/string.h"
+#include "ultima/nuvie/core/nuvie_defs.h"
+#include "ultima/nuvie/files/nuvie_io_file.h"
+#include "ultima/nuvie/conf/configuration.h"
+#include "ultima/nuvie/screen/screen.h"
+#include "ultima/nuvie/fonts/bmp_font.h"
+
+namespace Ultima {
+namespace Nuvie {
+
+BMPFont::BMPFont() : char_w(0), char_h(0), font_width_data(nullptr),
+		font_surface(nullptr), rune_mode(false), dual_font_mode(false) {
+}
+
+BMPFont::~BMPFont() {
+	if (font_surface)
+		delete font_surface;
+
+	if (font_width_data)
+		free(font_width_data);
+}
+
+bool BMPFont::init(const Common::Path &bmp_filename, bool dual_fontmap) {
+	dual_font_mode = dual_fontmap;
+	num_chars = 256;
+
+	Common::Path full_filename = bmp_filename;
+
+	full_filename.appendInPlace(".bmp");
+
+	font_surface = SDL_LoadBMP(full_filename);
+
+	font_surface->setTransparentColor(font_surface->format.RGBToColor(0, 0x70, 0xfc));
+
+	char_w = font_surface->w / 16;
+	char_h = font_surface->h / 16;
+
+	//read font width data. For variable width fonts.
+	full_filename = bmp_filename;
+	full_filename.appendInPlace(".dat");
+
+	NuvieIOFileRead font_width_data_file;
+	if (font_width_data_file.open(full_filename)) {
+		font_width_data = font_width_data_file.readAll();
+		font_width_data_file.close();
+	}
+
+	return true;
+}
+
+uint16 BMPFont::getStringWidth(const char *str, uint16 string_len) {
+	uint16 i;
+	uint16 w = 0;
+
+	for (i = 0; i < string_len; i++) {
+		if (dual_font_mode && str[i] == '<') {
+			offset = 128;
+		} else if (dual_font_mode && str[i] == '>') {
+			offset = 0;
+		} else {
+			w += getCharWidth(str[i] + offset);
+		}
+	}
+
+	return w;
+
+
+}
+uint16 BMPFont::getCharWidth(uint8 c) {
+	if (font_width_data) {
+		return font_width_data[c];
+	}
+
+	return char_w;
+}
+
+uint16 BMPFont::drawChar(Screen *screen, uint8 char_num, uint16 x, uint16 y,
+						 uint8 color) {
+	Common::Rect src;
+	Common::Rect dst;
+
+	if (dual_font_mode) {
+		if (char_num == '<') {
+			rune_mode = true;
+			return 0;
+		} else if (char_num == '>') {
+			rune_mode = false;
+			return 0;
+		}
+	}
+
+	if (rune_mode) {
+		char_num += 128;
+	}
+
+	src.left = (char_num % 16) * char_w;
+	src.top = (char_num / 16) * char_h;
+	src.setWidth(char_w);
+	src.setHeight(char_h);
+
+	dst.left = x;
+	dst.top = y;
+	dst.setWidth(char_w);
+	dst.setHeight(char_h);
+
+	SDL_BlitSurface(font_surface, &src, screen->get_sdl_surface(), &dst);
+
+	return getCharWidth(char_num);
+}
+
+} // End of namespace Nuvie
+} // End of namespace Ultima