mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 21:59:17 +00:00
144 lines
3.5 KiB
C++
144 lines
3.5 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#include "teenagent/font.h"
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#include "teenagent/resources.h"
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namespace TeenAgent {
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Font::Font() : grid_color(0xd0), color(0xd1), data(0) {
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}
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void Font::load(int id) {
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delete[] data;
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data = NULL;
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Common::SeekableReadStream * s = Resources::instance()->varia.getStream(id);
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if (s == NULL)
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error("loading font %d failed", id);
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data = new byte[s->size()];
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s->read(data, s->size());
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debug(0, "font size: %d", s->size());
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}
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uint Font::render(Graphics::Surface *surface, int x, int y, char c) {
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unsigned idx = (unsigned char)c;
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if (idx < 0x20 || idx >= 0x81) {
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debug(0, "unhandled char 0x%02x", idx);
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return 0;
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}
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idx -= 0x20;
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byte * glyph = data + READ_LE_UINT16(data + idx * 2);
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uint h = glyph[0], w = glyph[1];
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if (surface == NULL || surface->pixels == NULL)
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return w;
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//debug(0, "char %c, width: %dx%d", c, w, h);
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glyph += 2;
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byte * dst = (byte *)surface->getBasePtr(x, y);
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for (uint i = 0; i < h; ++i) {
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for (uint j = 0; j < w; ++j) {
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byte v = *glyph++;
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switch(v) {
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case 1:
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dst[j] = 0;
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break;
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case 2:
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dst[j] = color;
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break;
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}
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}
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dst += surface->pitch;
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}
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return w - 1;
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}
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static uint find_in_str(const Common::String &str, char c, uint pos = 0) {
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while (pos < str.size() && str[pos] != c) ++pos;
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return pos;
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}
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uint Font::render(Graphics::Surface *surface, int x, int y, const Common::String &str, bool show_grid) {
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const int height = 10;
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if (surface != NULL) {
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uint max_w = render(NULL, 0, 0, str, false);
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if (show_grid)
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grid(surface, x - 4, y - 2, max_w + 8, 8 + 6, grid_color);
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uint i = 0, j;
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do {
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j = find_in_str(str, '\n', i);
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Common::String line(str.c_str() + i, j - i);
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//debug(0, "line: %s", line.c_str());
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uint w = render(NULL, 0, 0, line, false);
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int xp = x + (max_w - w) / 2;
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for (uint k = 0; k < line.size(); ++k) {
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xp += render(surface, xp, y, line[k]);
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}
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y += height;
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i = j + 1;
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} while (i < str.size());
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return max_w;
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} else {
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//surface == NULL;
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uint w = 0, max_w = 0;
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for (uint i = 0; i < str.size(); ++i) {
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char c = str[i];
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if (c == '\n') {
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y += height;
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if (w > max_w)
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max_w = w;
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w = 0;
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continue;
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}
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w += render(NULL, 0, 0, c);
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}
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if (w > max_w)
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max_w = w;
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return max_w;
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}
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}
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void Font::grid(Graphics::Surface *surface, int x, int y, int w, int h, byte color) {
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byte * dst = (byte *)surface->getBasePtr(x, y);
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for (int i = 0; i < h; ++i) {
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for (int j = 0; j < w; ++j) {
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if (((i ^ j) & 1) == 0)
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dst[j] = color;
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}
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dst += surface->pitch;
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}
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}
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Font::~Font() {
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delete[] data;
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}
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} // End of namespace TeenAgent
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