mirror of
https://github.com/libretro/scummvm.git
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322 lines
9.2 KiB
C++
322 lines
9.2 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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*/
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#include "engines/metaengine.h"
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#include "base/plugins.h"
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#include "base/version.h"
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#include "common/events.h"
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#include "common/system.h"
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#include "common/translation.h"
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#include "common/util.h"
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#include "gui/about.h"
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#include "gui/gui-manager.h"
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#include "gui/ThemeEval.h"
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namespace GUI {
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enum {
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kScrollStartDelay = 1500,
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kScrollMillisPerPixel = 60
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};
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// Every Line should start with a letter followed by a digit. Currently those can be
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// (all subject to change)
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// Letter:
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// C, L, R -- set center/left/right alignment
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// A -- ASCII text to replace the next (latin1) line
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// Digit:
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// 0 - 2 -- set a custom color:
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// 0 normal text
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// 1 highlighted text
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// 2 disabled text
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// TODO: Maybe add a tab/indent feature; that is, make it possible to specify
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// an amount by which that line shall be indented (the indent of course would have
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// to be considered while performing any word wrapping, too).
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//
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// TODO: Add different font sizes (for bigger headlines)
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// TODO: Allow color change in the middle of a line...
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static const char *copyright_text[] = {
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"",
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"C0""Copyright (C) 2001-2016 The ScummVM Team",
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"C0""http://www.scummvm.org",
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"",
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"C0""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 binary.",
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"",
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};
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static const char *gpl_text[] = {
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"",
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"C0""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.",
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"C0""",
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"C0""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.",
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"",
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"C0""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.",
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"",
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};
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#include "gui/credits.h"
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AboutDialog::AboutDialog()
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: Dialog(10, 20, 300, 174),
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_scrollPos(0), _scrollTime(0), _willClose(false) {
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reflowLayout();
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int i;
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for (i = 0; i < 1; i++)
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_lines.push_back("");
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Common::String version("C0""ScummVM ");
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version += gScummVMVersion;
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_lines.push_back(version);
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Common::String date = Common::String::format(_("(built on %s)"), gScummVMBuildDate);
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_lines.push_back("C2" + date);
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for (i = 0; i < ARRAYSIZE(copyright_text); i++)
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addLine(copyright_text[i]);
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Common::String features("C1");
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features += _("Features compiled in:");
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addLine(features.c_str());
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Common::String featureList("C0");
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featureList += gScummVMFeatures;
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addLine(featureList.c_str());
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_lines.push_back("");
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Common::String engines("C1");
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engines += _("Available engines:");
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addLine(engines.c_str());
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const EnginePlugin::List &plugins = EngineMan.getPlugins();
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EnginePlugin::List::const_iterator iter = plugins.begin();
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for (; iter != plugins.end(); ++iter) {
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Common::String str;
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str = "C0";
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str += (**iter).getName();
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addLine(str.c_str());
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str = "C2";
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str += (**iter)->getOriginalCopyright();
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addLine(str.c_str());
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//addLine("");
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}
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for (i = 0; i < ARRAYSIZE(gpl_text); i++)
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addLine(gpl_text[i]);
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_lines.push_back("");
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for (i = 0; i < ARRAYSIZE(credits); i++)
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addLine(credits[i]);
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}
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void AboutDialog::addLine(const char *str) {
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if (*str == 0) {
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_lines.push_back("");
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} else {
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Common::String format(str, 2);
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str += 2;
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static Common::String asciiStr;
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if (format[0] == 'A') {
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bool useAscii = false;
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#ifdef USE_TRANSLATION
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// We could use TransMan.getCurrentCharset() but rather than compare strings
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// it is easier to use TransMan.getCharsetMapping() (non null in case of non
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// ISO-8859-1 mapping)
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useAscii = (TransMan.getCharsetMapping() != NULL);
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#endif
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if (useAscii)
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asciiStr = str;
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return;
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}
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StringArray wrappedLines;
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if (!asciiStr.empty()) {
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g_gui.getFont().wordWrapText(asciiStr, _w - 2 * _xOff, wrappedLines);
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asciiStr.clear();
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} else
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g_gui.getFont().wordWrapText(str, _w - 2 * _xOff, wrappedLines);
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for (StringArray::const_iterator i = wrappedLines.begin(); i != wrappedLines.end(); ++i) {
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_lines.push_back(format + *i);
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}
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}
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}
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void AboutDialog::open() {
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_scrollTime = g_system->getMillis() + kScrollStartDelay;
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_scrollPos = 0;
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_willClose = false;
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Dialog::open();
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}
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void AboutDialog::close() {
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Dialog::close();
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}
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void AboutDialog::drawDialog() {
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Dialog::drawDialog();
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setTextDrawableArea(Common::Rect(_x, _y, _x + _w, _y + _h));
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// Draw text
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// TODO: Add a "fade" effect for the top/bottom text lines
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// TODO: Maybe prerender all of the text into another surface,
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// and then simply compose that over the screen surface
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// in the right way. Should be even faster...
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const int firstLine = _scrollPos / _lineHeight;
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const int lastLine = MIN((_scrollPos + _h) / _lineHeight + 1, (uint32)_lines.size());
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int y = _y + _yOff - (_scrollPos % _lineHeight);
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for (int line = firstLine; line < lastLine; line++) {
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const char *str = _lines[line].c_str();
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Graphics::TextAlign align = Graphics::kTextAlignCenter;
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ThemeEngine::WidgetStateInfo state = ThemeEngine::kStateEnabled;
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if (*str) {
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switch (str[0]) {
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case 'C':
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align = Graphics::kTextAlignCenter;
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break;
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case 'L':
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align = Graphics::kTextAlignLeft;
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break;
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case 'R':
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align = Graphics::kTextAlignRight;
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break;
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default:
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error("Unknown scroller opcode '%c'", str[0]);
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break;
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}
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switch (str[1]) {
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case '0':
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state = ThemeEngine::kStateEnabled;
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break;
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case '1':
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state = ThemeEngine::kStateHighlight;
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break;
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case '2':
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state = ThemeEngine::kStateDisabled;
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break;
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case '3':
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warning("Need state for color 3");
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// color = g_gui._shadowcolor;
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break;
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case '4':
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warning("Need state for color 4");
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// color = g_gui._bgcolor;
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break;
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default:
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error("Unknown color type '%c'", str[1]);
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}
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str += 2;
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}
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// Trim leading whitespaces if center mode is on
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if (align == Graphics::kTextAlignCenter)
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while (*str && *str == ' ')
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str++;
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if (*str)
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g_gui.theme()->drawText(Common::Rect(_x + _xOff, y, _x + _w - _xOff, y + g_gui.theme()->getFontHeight()), str, state, align, ThemeEngine::kTextInversionNone, 0, false, ThemeEngine::kFontStyleBold, ThemeEngine::kFontColorNormal, true, _textDrawableArea);
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y += _lineHeight;
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}
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}
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void AboutDialog::handleTickle() {
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const uint32 t = g_system->getMillis();
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int scrollOffset = ((int)t - (int)_scrollTime) / kScrollMillisPerPixel;
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if (scrollOffset > 0) {
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int modifiers = g_system->getEventManager()->getModifierState();
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// Scroll faster when shift is pressed
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if (modifiers & Common::KBD_SHIFT)
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scrollOffset *= 4;
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// Reverse scrolling when alt is pressed
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if (modifiers & Common::KBD_ALT)
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scrollOffset *= -1;
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_scrollPos += scrollOffset;
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_scrollTime = t;
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if (_scrollPos < 0) {
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_scrollPos = 0;
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} else if ((uint32)_scrollPos > _lines.size() * _lineHeight) {
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_scrollPos = 0;
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_scrollTime += kScrollStartDelay;
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}
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drawDialog();
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}
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}
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void AboutDialog::handleMouseUp(int x, int y, int button, int clickCount) {
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// Close upon any mouse click
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close();
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}
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void AboutDialog::handleKeyDown(Common::KeyState state) {
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if (state.ascii)
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_willClose = true;
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}
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void AboutDialog::handleKeyUp(Common::KeyState state) {
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if (state.ascii && _willClose)
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close();
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}
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void AboutDialog::reflowLayout() {
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Dialog::reflowLayout();
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int i;
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const int screenW = g_system->getOverlayWidth();
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const int screenH = g_system->getOverlayHeight();
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_xOff = g_gui.xmlEval()->getVar("Globals.About.XOffset", 5);
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_yOff = g_gui.xmlEval()->getVar("Globals.About.YOffset", 5);
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int outerBorder = g_gui.xmlEval()->getVar("Globals.About.OuterBorder");
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_w = screenW - 2 * outerBorder;
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_h = screenH - 2 * outerBorder;
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_lineHeight = g_gui.getFontHeight() + 3;
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// Heuristic to compute 'optimal' dialog width
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int maxW = _w - 2*_xOff;
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_w = 0;
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for (i = 0; i < ARRAYSIZE(credits); i++) {
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int tmp = g_gui.getStringWidth(credits[i]) + 5;
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if (_w < tmp && tmp <= maxW) {
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_w = tmp;
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}
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}
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_w += 2*_xOff;
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// Center the dialog
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_x = (screenW - _w) / 2;
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_y = (screenH - _h) / 2;
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}
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} // End of namespace GUI
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