companion/src/helpers_html.cpp

   1 /*
   2  * Copyright (C) OpenTX
   3  *
   4  * Based on code named
   5  *   th9x - http://code.google.com/p/th9x
   6  *   er9x - http://code.google.com/p/er9x
   7  *   gruvin9x - http://code.google.com/p/gruvin9x
   8  *
   9  * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #include "helpers.h"
  22 #include "helpers_html.h"
  23 #include <QStringList>
  24 #include <QDir>
  25 #include <QFile>
  26 #include <QTextStream>
  27
  28 QString tdAlign(const QString & s, const QString & align, const QString & color, bool bold)
  29 {
  30   QString str = s;
  31   if (bold) str = "<b>" + str + "</b>";
  32   if (!color.isEmpty()) str = "<font color='" + color + "'>" + str + "</font>";
  33   return "<td align='" + align + "'>" + str + "</td>";
  34 }
  35
  36 QString doTC(const QString & s, const QString & color, bool bold)
  37 {
  38   return tdAlign(s, "center", color, bold);
  39 }
  40
  41 QString doTR(const QString & s, const QString & color, bool bold)
  42 {
  43   return tdAlign(s, "right", color, bold);
  44 }
  45
  46 QString doTL(const QString & s, const QString & color, bool bold)
  47 {
  48   return tdAlign(s, "left", color, bold);
  49 }
  50
  51 QString fv(const QString & name, const QString & value, const QString & color)
  52 {
  53   return "<b>" + name + ": </b><font color='" + color + "'>" + value + "</font><br>";
  54 }
  55
  56 QString doTableCell(const QString & s, const unsigned int width, const QString & align, const QString & color, bool bold)
  57 {
  58   QString prfx = "<td";
  59   if (width)
  60     prfx.append(QString(" width='%1%'").arg(QString::number(width)));
  61   if (!align.isEmpty())
  62     prfx.append(QString(" align='%1'").arg(align));
  63   prfx.append(">");
  64
  65   QString str = s;
  66   if (bold)
  67     str = "<b>" + str + "</b>";
  68   if (!color.isEmpty())
  69     str = QString("<font color='%1'>%2</font>").arg(color).arg(str);
  70
  71   str =  prfx + str + "</td>";
  72   return str;
  73 }
  74
  75 QString doTableRow(const QStringList & strl, const unsigned int width, const QString & align, const QString & color, bool bold)
  76 {
  77   QString str;
  78   for (int i=0; i<strl.count(); i++) {
  79     str.append(doTableCell(strl.at(i), width, align, color, bold));
  80   }
  81   return "<tr>" + str + "</tr>";
  82 }
  83
  84 QString doTableBlankRow()
  85 {
  86   return "<tr></tr>";
  87 }
  88
  89 Stylesheet::Stylesheet(const QString & name):
  90   mName(name)
  91 {
  92   init();
  93 }
  94
  95 Stylesheet::Stylesheet(const QString & name, const StyleType styleType):
  96   mName(name)
  97 {
  98   init();
  99   mResult = load(styleType);
 100 }
 101
 102 Stylesheet::~Stylesheet()
 103 {
 104 }
 105
 106 void Stylesheet::init()
 107 {
 108   mResult = false;
 109   mErrormsg = "";
 110   mText = "";
 111   QStringList p = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
 112   mCustomPath = p[0];
 113   mCustomFile = p[0] + "/" + mName;
 114   mDefaultFile = THEMES_DEFAULT_PATH + mName;
 115 }
 116
 117 bool Stylesheet::load(const StyleType styleType)
 118 {
 119   mResult = false;
 120   switch (styleType) {
 121   case STYLE_TYPE_NONE:
 122   case STYLE_TYPE_DEFAULT:
 123     mResult = read(mDefaultFile);
 124   case STYLE_TYPE_CUSTOM:
 125     mResult = read(mCustomFile);
 126   case STYLE_TYPE_EFFECTIVE:
 127     mResult = read(mCustomFile);
 128     if(!mResult)
 129       mResult = read(mDefaultFile);
 130   }
 131   return mResult;
 132 }
 133
 134 bool Stylesheet::read(const QString & path)
 135 {
 136   mResult = false;
 137   mText = "";
 138
 139   QFile file(path);
 140   if (file.exists()) {
 141     if (file.open(QFile::ReadOnly | QFile::Text)) {
 142       QTextStream in(&file);
 143       if (in.status()==QTextStream::Ok) {
 144         mText = in.readAll();
 145         if (in.status()==QTextStream::Ok)
 146           mResult = true;
 147         else
 148           mText = "";
 149       }
 150       file.close();
 151     }
 152   }
 153   if (mResult)
 154     mErrormsg = tr("Style sheet data read from '%1'").arg(QDir::toNativeSeparators(path));
 155   else
 156     mErrormsg = tr("Style sheet data unable to be read from '%1'").arg(QDir::toNativeSeparators(path));
 157   qDebug() << mErrormsg;
 158   return mResult;
 159 }
 160
 161 bool Stylesheet::update()
 162 {
 163   mResult = false;
 164   mErrormsg = "";
 165   QDir path(mCustomPath);
 166   if (!path.exists()) {
 167     QDir dir;
 168     if (!dir.mkpath(mCustomPath))
 169       mErrormsg = tr("Cannot create folder '%1'").arg(QDir::toNativeSeparators(mCustomPath));
 170   }
 171   if (path.exists()) {
 172     QFile file(mCustomFile);
 173     if (!file.open(QFile::WriteOnly | QFile::Text)) {
 174       mErrormsg = tr("Cannot open file for writing '%1': Error: %2").arg(QDir::toNativeSeparators(mCustomFile), file.errorString());
 175     }
 176     else {
 177       QTextStream out(&file);
 178       if (out.status()==QTextStream::Ok) {
 179         out << mText;
 180         if (!(out.status()==QTextStream::Ok)) {
 181           mErrormsg = tr("Cannot write to file '%1': Error: %2").arg(QDir::toNativeSeparators(mCustomFile), file.errorString());
 182           if (!file.flush()) {
 183             mErrormsg = tr("Cannot flush buffer for file '%1': Error: %2").arg(QDir::toNativeSeparators(mCustomFile), file.errorString());
 184           }
 185         }
 186         else {
 187           mResult = true;
 188           mErrormsg = tr("Style sheet written to '%1'").arg(QDir::toNativeSeparators(mCustomFile));
 189         }
 190       }
 191     }
 192     file.close();
 193   }
 194   qDebug() << mErrormsg;
 195   return mResult;
 196 }
 197
 198 bool Stylesheet::deleteCustom()
 199 {
 200   QFile file(mCustomFile);
 201   mResult = file.remove();
 202   if (mResult)
 203     mErrormsg = tr("Custom style sheet deleted: '%1'").arg(QDir::toNativeSeparators(mCustomFile));
 204   else
 205     mErrormsg = tr("Unable to delete custom style sheet: '%1'").arg(QDir::toNativeSeparators(mCustomFile));
 206   qDebug() << mErrormsg;
 207   return mResult;
 208 }
 209
 210 QString Stylesheet::name()
 211 {
 212   return mName;
 213 }
 214
 215 QString Stylesheet::text()
 216 {
 217   return mText;
 218 }
 219
 220 void Stylesheet::setText(const QString & text)
 221 {
 222   mText = text;
 223 }
 224
 225 QString Stylesheet::errormsg()
 226 {
 227   return mErrormsg;
 228 }
 229