Starts to implement gopher protocol and gophermap support. Heavily WIP, but you can already surf on gopherspace!

1 files changed, 8 insertions, 284 deletions

diff --git a/src/geminirenderer.cpp b/src/geminirenderer.cpp
index ad6a2fc..da2f9e5 100644
--- a/src/geminirenderer.cpp
+++ b/src/geminirenderer.cpp
@@ -1,117 +1,10 @@
 #include "geminirenderer.hpp"
 
 #include <QTextList>
-#include <QCryptographicHash>
 #include <QTextBlock>
-#include <QDebug>
-#include <cmath>
 #include <QList>
 #include <QStringList>
 
-static QString encodeCssFont (const QFont& refFont)
-{
-    //-----------------------------------------------------------------------
-    // This function assembles a CSS Font specification string from
-    // a QFont. This supports most of the QFont attributes settable in
-    // the Qt 4.8 and Qt 5.3 QFontDialog.
-    //
-    // (1) Font Family
-    // (2) Font Weight (just bold or not)
-    // (3) Font Style (possibly Italic or Oblique)
-    // (4) Font Size (in either pixels or points)
-    // (5) Decorations (possibly Underline or Strikeout)
-    //
-    // Not supported: Writing System (e.g. Latin).
-    //
-    // See the corresponding decode function, below.
-    // QFont decodeCssFontString (const QString cssFontStr)
-    //-----------------------------------------------------------------------
-
-    QStringList fields; // CSS font attribute fields
-
-    // ***************************************************
-    // *** (1) Font Family: Primary plus Substitutes ***
-    // ***************************************************
-
-    const QString family = refFont.family();
-
-    // NOTE [9-2014, Qt 4.8.6]: This isn't what I thought it was. It
-    // does not return a list of "fallback" font faces (e.g. Georgia,
-    // Serif for "Times New Roman"). In my testing, this is always
-    // returning an empty list.
-    //
-    QStringList famSubs = QFont::substitutes (family);
-
-    if (!famSubs.contains (family))
-        famSubs.prepend (family);
-
-    static const QChar DBL_QUOT ('"');
-    const int famCnt = famSubs.count();
-    QStringList famList;
-    for (int inx = 0; inx < famCnt; ++inx)
-    {
-        // Place double quotes around family names having space characters,
-        // but only if double quotes are not already there.
-        //
-        const QString fam = famSubs [inx];
-        if (fam.contains (' ') && !fam.startsWith (DBL_QUOT))
-            famList << (DBL_QUOT + fam + DBL_QUOT);
-        else
-            famList << fam;
-    }
-
-    const QString famStr = QString ("font-family: ") + famList.join (", ");
-    fields << famStr;
-
-    // **************************************
-    // *** (2) Font Weight: Bold or Not ***
-    // **************************************
-
-    const bool bold = refFont.bold();
-    if (bold)
-        fields << "font-weight: bold";
-
-    // ****************************************************
-    // *** (3) Font Style: possibly Italic or Oblique ***
-    // ****************************************************
-
-    const QFont::Style style = refFont.style();
-    switch (style)
-    {
-    case QFont::StyleNormal: break;
-    case QFont::StyleItalic: fields << "font-style: italic"; break;
-    case QFont::StyleOblique: fields << "font-style: oblique"; break;
-    }
-
-    // ************************************************
-    // *** (4) Font Size: either Pixels or Points ***
-    // ************************************************
-
-    const double sizeInPoints = refFont.pointSizeF(); // <= 0 if not defined.
-    const int sizeInPixels = refFont.pixelSize(); // <= 0 if not defined.
-    if (sizeInPoints > 0.0)
-        fields << QString ("font-size: %1pt") .arg (sizeInPoints);
-    else if (sizeInPixels > 0)
-        fields << QString ("font-size: %1px") .arg (sizeInPixels);
-
-    // ***********************************************
-    // *** (5) Decorations: Underline, Strikeout ***
-    // ***********************************************
-
-    const bool underline = refFont.underline();
-    const bool strikeOut = refFont.strikeOut();
-
-    if (underline && strikeOut)
-        fields << "text-decoration: underline line-through";
-    else if (underline)
-        fields << "text-decoration: underline";
-    else if (strikeOut)
-        fields << "text-decoration: line-through";
-
-    const QString cssFontStr = fields.join ("; ");
-    return cssFontStr;
-}
-
 static QByteArray trim_whitespace(QByteArray items)
 {
     int start = 0;
@@ -127,188 +20,15 @@ static QByteArray trim_whitespace(QByteArray items)
     return items.mid(start, end - start + 1);
 }
 
-GeminiStyle::GeminiStyle() : theme(Fixed),
-                             standard_font(),
-                             h1_font(),
-                             h2_font(),
-                             h3_font(),
-                             preformatted_font(),
-                             background_color("#edefff"),
-                             standard_color(0x00, 0x00, 0x00),
-                             preformatted_color(0x00, 0x00, 0x00),
-                             h1_color("#022f90"),
-                             h2_color("#022f90"),
-                             h3_color("#022f90"),
-                             internal_link_color("#0e8fff"),
-                             external_link_color("#0e8fff"),
-                             cross_scheme_link_color("#0960a7"),
-                             internal_link_prefix("→ "),
-                             external_link_prefix("⇒ "),
-                             margin(55.0)
-{
-    preformatted_font.setFamily("monospace");
-    preformatted_font.setPointSizeF(10.0);
-
-    standard_font.setFamily("sans");
-    standard_font.setPointSizeF(10.0);
-
-    h1_font.setFamily("sans");
-    h1_font.setBold(true);
-    h1_font.setPointSizeF(20.0);
-
-    h2_font.setFamily("sans");
-    h2_font.setBold(true);
-    h2_font.setPointSizeF(15.0);
-
-    h3_font.setFamily("sans");
-    h3_font.setBold(true);
-    h3_font.setPointSizeF(12.0);
-}
-
-bool GeminiStyle::save(QSettings &settings) const
-{
-    settings.beginGroup("Theme");
-
-    settings.setValue("standard_font", standard_font.toString());
-    settings.setValue("h1_font", h1_font.toString());
-    settings.setValue("h2_font", h2_font.toString());
-    settings.setValue("h3_font", h3_font.toString());
-    settings.setValue("preformatted_font", preformatted_font.toString());
-
-    settings.setValue("background_color", background_color.name());
-    settings.setValue("standard_color", standard_color.name());
-    settings.setValue("preformatted_color", preformatted_color.name());
-    settings.setValue("h1_color", h1_color.name());
-    settings.setValue("h2_color", h2_color.name());
-    settings.setValue("h3_color", h3_color.name());
-    settings.setValue("internal_link_color", internal_link_color.name());
-    settings.setValue("external_link_color", external_link_color.name());
-    settings.setValue("cross_scheme_link_color", cross_scheme_link_color.name());
-
-    settings.setValue("internal_link_prefix", internal_link_prefix);
-    settings.setValue("external_link_prefix", external_link_prefix);
-
-    settings.setValue("margins", margin);
-    settings.setValue("theme", int(theme));
-
-    settings.endGroup();
-    return true;
-}
-
-bool GeminiStyle::load(QSettings &settings)
-{
-    settings.beginGroup("Theme");
-
-    if(settings.contains("standard_color"))
-    {
-        standard_font.fromString(settings.value("standard_font").toString());
-        h1_font.fromString(settings.value("h1_font").toString());
-        h2_font.fromString(settings.value("h2_font").toString());
-        h3_font.fromString(settings.value("h3_font").toString());
-        preformatted_font.fromString(settings.value("preformatted_font").toString());
-
-        background_color = QColor(settings.value("background_color").toString());
-        standard_color = QColor(settings.value("standard_color").toString());
-        preformatted_color = QColor(settings.value("preformatted_color").toString());
-        h1_color = QColor(settings.value("h1_color").toString());
-        h2_color = QColor(settings.value("h2_color").toString());
-        h3_color = QColor(settings.value("h3_color").toString());
-        internal_link_color = QColor(settings.value("internal_link_color").toString());
-        external_link_color = QColor(settings.value("external_link_color").toString());
-        cross_scheme_link_color = QColor(settings.value("cross_scheme_link_color").toString());
-
-        internal_link_prefix = settings.value("internal_link_prefix").toString();
-        external_link_prefix = settings.value("external_link_prefix").toString();
-
-        margin = settings.value("margins").toDouble();
-        theme = Theme(settings.value("theme").toInt());
-    }
-
-    settings.endGroup();
-    return true;
-}
-
-GeminiStyle GeminiStyle::derive(const QUrl &url) const
-{
-    if (this->theme == Fixed)
-        return *this;
-
-    QByteArray hash = QCryptographicHash::hash(url.host().toUtf8(), QCryptographicHash::Md5);
-
-    std::array<uint8_t, 16> items;
-    assert(items.size() == hash.size());
-    memcpy(items.data(), hash.data(), items.size());
-
-    float hue = (items[0] + items[1]) / 510.0;
-    float saturation = items[2] / 255.0;
-
-    double tmp;
-    GeminiStyle themed = *this;
-    switch (this->theme)
-    {
-    case AutoDarkTheme:
-    {
-        themed.background_color = QColor::fromHslF(hue, saturation, 0.25f);
-        themed.standard_color = QColor{0xFF, 0xFF, 0xFF};
-
-        themed.h1_color = QColor::fromHslF(std::modf(hue + 0.5, &tmp), 1.0 - saturation, 0.75);
-        themed.h2_color = QColor::fromHslF(std::modf(hue + 0.5, &tmp), 1.0 - saturation, 0.75);
-        themed.h3_color = QColor::fromHslF(std::modf(hue + 0.5, &tmp), 1.0 - saturation, 0.75);
-
-        themed.external_link_color = QColor::fromHslF(std::modf(hue + 0.25, &tmp), 1.0, 0.75);
-        themed.internal_link_color = themed.external_link_color.lighter(110);
-        themed.cross_scheme_link_color = themed.external_link_color.darker(110);
-
-        break;
-    }
-
-    case AutoLightTheme:
-    {
-        themed.background_color = QColor::fromHslF(hue, items[2] / 255.0, 0.85);
-        themed.standard_color = QColor{0x00, 0x00, 0x00};
-
-        themed.h1_color = QColor::fromHslF(std::modf(hue + 0.5, &tmp), 1.0 - saturation, 0.25);
-        themed.h2_color = QColor::fromHslF(std::modf(hue + 0.5, &tmp), 1.0 - saturation, 0.25);
-        themed.h3_color = QColor::fromHslF(std::modf(hue + 0.5, &tmp), 1.0 - saturation, 0.25);
-
-        themed.external_link_color = QColor::fromHslF(std::modf(hue + 0.25, &tmp), 1.0, 0.25);
-        themed.internal_link_color = themed.external_link_color.darker(110);
-        themed.cross_scheme_link_color = themed.external_link_color.lighter(110);
-
-        break;
-    }
-
-    case Fixed:
-        assert(false);
-    }
-
-    // Same for all themes
-    themed.preformatted_color = themed.standard_color;
-
-    return themed;
-}
-
-QString GeminiStyle::toStyleSheet() const
-{
-    QString css;
-
-    css += QString("p   { color: %2; %1 }\n").arg(encodeCssFont (standard_font)).arg(standard_color.name());
-    css += QString("a   { color: %2; %1 }\n").arg(encodeCssFont (standard_font)).arg(external_link_color.name());
-    css += QString("pre { color: %2; %1 }\n").arg(encodeCssFont (preformatted_font)).arg(preformatted_color.name());
-    css += QString("h1  { color: %2; %1 }\n").arg(encodeCssFont (h1_font)).arg(h1_color.name());
-    css += QString("h2  { color: %2; %1 }\n").arg(encodeCssFont (h2_font)).arg(h2_color.name());
-    css += QString("h3  { color: %2; %1 }\n").arg(encodeCssFont (h3_font)).arg(h3_color.name());
-
-    qDebug() << "CSS → " << css;
-    return css;
-}
-
 std::unique_ptr<GeminiDocument> GeminiRenderer::render(
         const QByteArray &input,
         QUrl const &root_url,
-        GeminiStyle const & themed_style,
+        DocumentStyle const & themed_style,
         DocumentOutlineModel &outline)
 {
+    QTextOption no_wrap;
+    no_wrap.setWrapMode(QTextOption::NoWrap);
+
     QTextCharFormat preformatted;
     preformatted.setFont(themed_style.preformatted_font);
     preformatted.setForeground(themed_style.preformatted_color);
@@ -345,6 +65,9 @@ std::unique_ptr<GeminiDocument> GeminiRenderer::render(
     result->setDocumentMargin(themed_style.margin);
     result->background_color = themed_style.background_color;
 
+
+    result->setDefaultTextOption(no_wrap);
+
     QTextCursor cursor{result.get()};
 
     QTextBlockFormat non_list_format = cursor.blockFormat();
@@ -371,6 +94,7 @@ std::unique_ptr<GeminiDocument> GeminiRenderer::render(
             }
             else
             {
+                cursor.block().layout()->setTextOption(no_wrap);
                 cursor.setCharFormat(preformatted);
                 cursor.insertText(line + "\n");
             }