mirror of https://github.com/AxioDL/metaforce.git
562 lines
14 KiB
C++
562 lines
14 KiB
C++
#include "EscapeSequenceParser.hpp"
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#include <QFontDatabase>
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/* TODO: more complete Vt102 emulation */
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// based on information: http://en.m.wikipedia.org/wiki/ANSI_escape_code
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// http://misc.flogisoft.com/bash/tip_colors_and_formatting
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// http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
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void ParseEscapeSequence(int attribute, QListIterator<QString>& i, QTextCharFormat& textCharFormat,
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const QTextCharFormat& defaultTextCharFormat) {
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switch (attribute) {
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case 0: { // Normal/Default (reset all attributes)
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textCharFormat = defaultTextCharFormat;
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break;
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}
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case 1: { // Bold/Bright (bold or increased intensity)
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textCharFormat.setFontWeight(QFont::Bold);
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break;
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}
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case 2: { // Dim/Faint (decreased intensity)
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textCharFormat.setFontWeight(QFont::Light);
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break;
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}
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case 3: { // Italicized (italic on)
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textCharFormat.setFontItalic(true);
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break;
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}
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case 4: { // Underscore (single underlined)
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textCharFormat.setUnderlineStyle(QTextCharFormat::SingleUnderline);
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textCharFormat.setFontUnderline(true);
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break;
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}
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case 5: { // Blink (slow, appears as Bold)
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textCharFormat.setFontWeight(QFont::Bold);
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break;
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}
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case 6: { // Blink (rapid, appears as very Bold)
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textCharFormat.setFontWeight(QFont::Black);
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break;
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}
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case 7: { // Reverse/Inverse (swap foreground and background)
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QBrush foregroundBrush = textCharFormat.foreground();
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textCharFormat.setForeground(textCharFormat.background());
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textCharFormat.setBackground(foregroundBrush);
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break;
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}
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case 8: { // Concealed/Hidden/Invisible (usefull for passwords)
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textCharFormat.setForeground(textCharFormat.background());
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break;
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}
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case 9: { // Crossed-out characters
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textCharFormat.setFontStrikeOut(true);
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break;
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}
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case 10: { // Primary (default) font
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textCharFormat.setFont(defaultTextCharFormat.font());
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break;
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}
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case 11:
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case 12:
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case 13:
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case 14:
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case 15:
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case 16:
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case 17:
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case 18:
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case 19: {
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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QString fontFamily = textCharFormat.fontFamily();
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QStringList fontStyles = QFontDatabase::styles(fontFamily);
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int fontStyleIndex = attribute - 11;
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if (fontStyleIndex < fontStyles.length()) {
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textCharFormat.setFont(
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QFontDatabase::font(fontFamily, fontStyles.at(fontStyleIndex), textCharFormat.font().pointSize()));
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}
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#else
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QFontDatabase fontDatabase;
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QString fontFamily = textCharFormat.fontFamily();
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QStringList fontStyles = fontDatabase.styles(fontFamily);
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int fontStyleIndex = attribute - 11;
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if (fontStyleIndex < fontStyles.length()) {
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textCharFormat.setFont(
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fontDatabase.font(fontFamily, fontStyles.at(fontStyleIndex), textCharFormat.font().pointSize()));
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}
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#endif
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break;
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}
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case 20: { // Fraktur (unsupported)
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break;
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}
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case 21: { // Set Bold off
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textCharFormat.setFontWeight(QFont::Normal);
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break;
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}
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case 22: { // Set Dim off
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textCharFormat.setFontWeight(QFont::Normal);
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break;
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}
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case 23: { // Unset italic and unset fraktur
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textCharFormat.setFontItalic(false);
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break;
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}
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case 24: { // Unset underlining
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textCharFormat.setUnderlineStyle(QTextCharFormat::NoUnderline);
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textCharFormat.setFontUnderline(false);
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break;
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}
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case 25: { // Unset Blink/Bold
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textCharFormat.setFontWeight(QFont::Normal);
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break;
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}
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case 26: { // Reserved
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break;
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}
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case 27: { // Positive (non-inverted)
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QBrush backgroundBrush = textCharFormat.background();
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textCharFormat.setBackground(textCharFormat.foreground());
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textCharFormat.setForeground(backgroundBrush);
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break;
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}
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case 28: {
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textCharFormat.setForeground(defaultTextCharFormat.foreground());
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textCharFormat.setBackground(defaultTextCharFormat.background());
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break;
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}
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case 29: {
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textCharFormat.setUnderlineStyle(QTextCharFormat::NoUnderline);
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textCharFormat.setFontUnderline(false);
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break;
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}
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case 30:
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case 31:
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case 32:
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case 33:
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case 34:
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case 35:
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case 36:
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case 37: {
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int colorIndex = attribute - 30;
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QColor color;
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if (QFont::Normal < textCharFormat.fontWeight()) {
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switch (colorIndex) {
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case 0: {
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color = Qt::darkGray;
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break;
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}
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case 1: {
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color = Qt::red;
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break;
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}
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case 2: {
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color = Qt::green;
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break;
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}
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case 3: {
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color = Qt::yellow;
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break;
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}
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case 4: {
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color = Qt::blue;
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break;
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}
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case 5: {
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color = Qt::magenta;
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break;
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}
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case 6: {
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color = Qt::cyan;
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break;
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}
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case 7: {
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color = Qt::white;
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break;
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}
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default: { Q_ASSERT(false); }
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}
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} else {
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/* Normally dark colors, but forced to light colors for visibility */
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switch (colorIndex) {
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case 0: {
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color = Qt::darkGray;
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break;
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}
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case 1: {
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color = Qt::red;
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break;
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}
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case 2: {
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color = Qt::green;
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break;
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}
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case 3: {
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color = Qt::yellow;
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break;
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}
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case 4: {
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color = Qt::blue;
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break;
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}
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case 5: {
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color = Qt::magenta;
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break;
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}
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case 6: {
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color = Qt::cyan;
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break;
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}
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case 7: {
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color = Qt::white;
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break;
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}
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default: { Q_ASSERT(false); }
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}
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}
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textCharFormat.setForeground(color);
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break;
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}
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case 38: {
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if (i.hasNext()) {
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bool ok = false;
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int selector = i.next().toInt(&ok);
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Q_ASSERT(ok);
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QColor color;
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switch (selector) {
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case 2: {
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if (!i.hasNext()) {
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break;
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}
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int red = i.next().toInt(&ok);
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Q_ASSERT(ok);
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if (!i.hasNext()) {
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break;
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}
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int green = i.next().toInt(&ok);
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Q_ASSERT(ok);
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if (!i.hasNext()) {
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break;
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}
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int blue = i.next().toInt(&ok);
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Q_ASSERT(ok);
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color.setRgb(red, green, blue);
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break;
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}
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case 5: {
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if (!i.hasNext()) {
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break;
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}
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int index = i.next().toInt(&ok);
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Q_ASSERT(ok);
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if (index >= 0 && index <= 0x07) { // 0x00-0x07: standard colors (as in ESC [ 30..37 m)
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return ParseEscapeSequence(index - 0x00 + 30, i, textCharFormat, defaultTextCharFormat);
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} else if (index >= 0x08 && index <= 0x0F) { // 0x08-0x0F: high intensity colors (as in ESC [ 90..97 m)
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return ParseEscapeSequence(index - 0x08 + 90, i, textCharFormat, defaultTextCharFormat);
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} else if (index >= 0x10 && index <= 0xE7) { // 0x10-0xE7: 6*6*6=216 colors: 16 + 36*r + 6*g + b (0≤r,g,b≤5)
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index -= 0x10;
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int red = index % 6;
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index /= 6;
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int green = index % 6;
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index /= 6;
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int blue = index % 6;
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index /= 6;
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Q_ASSERT(index == 0);
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color.setRgb(red, green, blue);
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break;
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} else if (index >= 0xE8 && index <= 0xFF) { // 0xE8-0xFF: grayscale from black to white in 24 steps
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qreal intensity = qreal(index - 0xE8) / (0xFF - 0xE8);
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color.setRgbF(intensity, intensity, intensity);
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break;
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}
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textCharFormat.setForeground(color);
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break;
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}
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default: { break; }
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}
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}
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break;
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}
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case 39: {
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textCharFormat.setForeground(defaultTextCharFormat.foreground());
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break;
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}
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case 40:
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case 41:
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case 42:
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case 43:
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case 44:
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case 45:
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case 46:
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case 47: {
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int colorIndex = attribute - 40;
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QColor color;
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switch (colorIndex) {
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case 0: {
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color = Qt::darkGray;
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break;
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}
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case 1: {
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color = Qt::red;
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break;
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}
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case 2: {
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color = Qt::green;
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break;
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}
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case 3: {
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color = Qt::yellow;
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break;
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}
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case 4: {
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color = Qt::blue;
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break;
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}
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case 5: {
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color = Qt::magenta;
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break;
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}
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case 6: {
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color = Qt::cyan;
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break;
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}
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case 7: {
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color = Qt::white;
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break;
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}
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default: { Q_ASSERT(false); }
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}
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textCharFormat.setBackground(color);
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break;
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}
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case 48: {
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if (i.hasNext()) {
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bool ok = false;
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int selector = i.next().toInt(&ok);
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Q_ASSERT(ok);
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QColor color;
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switch (selector) {
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case 2: {
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if (!i.hasNext()) {
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break;
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}
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int red = i.next().toInt(&ok);
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Q_ASSERT(ok);
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if (!i.hasNext()) {
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break;
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}
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int green = i.next().toInt(&ok);
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Q_ASSERT(ok);
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if (!i.hasNext()) {
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break;
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}
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int blue = i.next().toInt(&ok);
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Q_ASSERT(ok);
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color.setRgb(red, green, blue);
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break;
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}
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case 5: {
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if (!i.hasNext()) {
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break;
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}
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int index = i.next().toInt(&ok);
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Q_ASSERT(ok);
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if (index >= 0x00 && index <= 0x07) { // 0x00-0x07: standard colors (as in ESC [ 40..47 m)
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return ParseEscapeSequence(index - 0x00 + 40, i, textCharFormat, defaultTextCharFormat);
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} else if (index >= 0x08 && index <= 0x0F) { // 0x08-0x0F: high intensity colors (as in ESC [ 100..107 m)
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return ParseEscapeSequence(index - 0x08 + 100, i, textCharFormat, defaultTextCharFormat);
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} else if (index >= 0x10 && index <= 0xE7) { // 0x10-0xE7: 6*6*6=216 colors: 16 + 36*r + 6*g + b (0≤r,g,b≤5)
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index -= 0x10;
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int red = index % 6;
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index /= 6;
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int green = index % 6;
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index /= 6;
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int blue = index % 6;
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index /= 6;
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Q_ASSERT(index == 0);
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color.setRgb(red, green, blue);
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break;
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} else if (index >= 0xE8 && index <= 0xFF) { // 0xE8-0xFF: grayscale from black to white in 24 steps
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qreal intensity = qreal(index - 0xE8) / (0xFF - 0xE8);
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color.setRgbF(intensity, intensity, intensity);
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}
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}
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textCharFormat.setBackground(color);
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break;
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}
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}
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break;
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}
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case 49: {
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textCharFormat.setBackground(defaultTextCharFormat.background());
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break;
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}
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case 90:
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case 91:
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case 92:
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case 93:
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case 94:
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case 95:
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case 96:
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case 97: {
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int colorIndex = attribute - 90;
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QColor color;
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switch (colorIndex) {
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case 0: {
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color = Qt::darkGray;
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break;
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}
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case 1: {
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color = Qt::red;
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break;
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}
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case 2: {
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color = Qt::green;
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break;
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}
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case 3: {
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color = Qt::yellow;
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break;
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}
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case 4: {
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color = Qt::blue;
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break;
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}
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case 5: {
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color = Qt::magenta;
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break;
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}
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case 6: {
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color = Qt::cyan;
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break;
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}
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case 7: {
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color = Qt::white;
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break;
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}
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default: { Q_ASSERT(false); }
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}
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// color.setRedF(color.redF() * 0.8);
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// color.setGreenF(color.greenF() * 0.8);
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// color.setBlueF(color.blueF() * 0.8);
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textCharFormat.setForeground(color);
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break;
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}
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case 100:
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case 101:
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case 102:
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case 103:
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case 104:
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case 105:
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case 106:
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case 107: {
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int colorIndex = attribute - 100;
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QColor color;
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switch (colorIndex) {
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case 0: {
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color = Qt::darkGray;
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break;
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}
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case 1: {
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color = Qt::red;
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break;
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}
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case 2: {
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color = Qt::green;
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break;
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}
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case 3: {
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color = Qt::yellow;
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break;
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}
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case 4: {
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color = Qt::blue;
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break;
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}
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case 5: {
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color = Qt::magenta;
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break;
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}
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case 6: {
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color = Qt::cyan;
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break;
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}
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case 7: {
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color = Qt::white;
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break;
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}
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default: { Q_ASSERT(false); }
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}
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// color.setRedF(color.redF() * 0.8);
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// color.setGreenF(color.greenF() * 0.8);
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// color.setBlueF(color.blueF() * 0.8);
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textCharFormat.setBackground(color);
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break;
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}
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default: { break; }
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}
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}
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void ReturnInsert(QTextCursor& cur, const QString& text) {
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const auto DoLine = [&](const QString& line) {
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const auto DoReturn = [&](const QString& ret) {
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if (!ret.isEmpty()) {
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cur.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor, ret.size());
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cur.insertText(ret);
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}
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};
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const QStringList list = line.split(QLatin1Char{'\r'});
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DoReturn(list.front());
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if (list.size() > 1) {
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for (auto it = list.begin() + 1; it != list.end(); ++it) {
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cur.movePosition(QTextCursor::StartOfBlock);
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DoReturn(*it);
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}
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}
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};
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#if _WIN32
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const QStringList lineSplit = text.split(QStringLiteral("\r\n"));
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#else
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const QStringList lineSplit = text.split(QLatin1Char{'\n'});
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#endif
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DoLine(lineSplit.front());
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if (lineSplit.size() > 1) {
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for (auto it = lineSplit.begin() + 1; it != lineSplit.end(); ++it) {
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cur.movePosition(QTextCursor::EndOfLine);
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cur.insertBlock();
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DoLine(*it);
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}
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}
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}
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void ReturnInsert(QTextCursor& cur, const QString& text, const QTextCharFormat& format) {
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const auto DoLine = [&](const QString& line) {
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const auto DoReturn = [&](const QString& ret) {
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if (!ret.isEmpty()) {
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cur.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor, ret.size());
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cur.insertText(ret, format);
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}
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};
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const QStringList list = line.split(QLatin1Char{'\r'});
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DoReturn(list.front());
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if (list.size() > 1) {
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for (auto it = list.begin() + 1; it != list.end(); ++it) {
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cur.movePosition(QTextCursor::StartOfBlock);
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DoReturn(*it);
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}
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}
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};
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#if _WIN32
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const QStringList lineSplit = text.split(QStringLiteral("\r\n"));
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#else
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const QStringList lineSplit = text.split(QLatin1Char{'\n'});
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#endif
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DoLine(lineSplit.front());
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if (lineSplit.size() > 1) {
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for (auto it = lineSplit.begin() + 1; it != lineSplit.end(); ++it) {
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cur.movePosition(QTextCursor::EndOfLine);
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cur.insertBlock();
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DoLine(*it);
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}
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}
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}
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