84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "ultima/shared/gfx/font.h"
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#include "graphics/managed_surface.h"
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namespace Ultima {
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namespace Shared {
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namespace Gfx {
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Font::Font(const byte *data, size_t startingChar, size_t charCount) :
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_data(data), _startingChar(startingChar), _endingChar(startingChar + charCount - 1) {}
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int Font::writeString(Graphics::ManagedSurface &surface, const Common::String &msg, Point &pt,
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byte color, byte bgColor) {
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int total = 0;
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int xs = pt.x;
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for (const char *msgP = msg.c_str(); *msgP; ++msgP, total += 8) {
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if (*msgP == '\n') {
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// Move to next line
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pt.x = xs;
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pt.y += lineHeight();
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} else {
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// Write out character
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writeChar(surface, (unsigned char)*msgP, pt, color, bgColor);
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}
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}
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return total;
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}
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void Font::writeChar(Graphics::ManagedSurface &surface, unsigned char c, Point &pt,
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byte color, byte bgColor) {
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assert(c >= _startingChar && c <= _endingChar);
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const byte *charP = _data + (c - _startingChar) * 8;
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Graphics::Surface s = surface.getSubArea(Common::Rect(pt.x, pt.y, pt.x + 8, pt.y + 8));
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for (int y = 0; y < 8; ++y) {
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byte *lineP = (byte *)s.getBasePtr(0, y);
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byte lineData = charP[y];
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for (int x = 0; x < 8; ++x, lineData <<= 1, ++lineP) {
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*lineP = (lineData & 0x80) ? color : bgColor;
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}
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}
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pt.x += charWidth(c);
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}
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uint Font::charWidth(char c) const {
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return 8;
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}
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uint Font::lineHeight() const {
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return 8;
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}
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uint Font::stringWidth(const Common::String &msg) const {
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return msg.size() * 8;
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}
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} // End of namespace Gfx
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} // End of namespace Shared
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} // End of namespace Ultima
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