git.maemo.org Git - jspeed/blob - src/textelement.cpp

   1 /*
   2  * This file is part of jSpeed.
   3  *
   4  * jSpeed is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * jSpeed is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with jSpeed.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 #include <QtCore/QString>
  20 #include <QtCore/QDebug>
  21 #include <QtCore/QTime>
  22 #include <QtGui/QGraphicsScene>
  23 #include <QtGui/QGraphicsTextItem>
  24 #include "textelement.h"
  25 #include "reader.h"
  26 #include "odometer.h"
  27 #include "graphicsscene.h"
  28
  29 namespace
  30 {
  31     const GraphicsElement::AttributeDetails ATTRIBUTES[TextElement::ATTRIBUTE_COUNT] =
  32     {
  33      {"xpos", true},
  34      {"ypos", true},
  35      {"data", false},
  36      {"format", false},
  37      {"width", true},
  38      {"align", false},
  39      {"color", false},
  40      {"size", true},
  41      {"font", false},
  42      {"bold", false},
  43      {"italic", false}
  44     };
  45
  46     const QString FIELDS[TextElement::FIELD_COUNT] =  {"TRIP", "TOTAL", "SPEED",
  47                                                        "MAXSPEED", "AVGSPEED",
  48                                                        "UNIT", "SPEEDUNIT", "TIME"};
  49 }
  50
  51 TextElement::TextElement(Reader* reader): GraphicsElement(reader),
  52 data_(""), format_(""), align_("left"), fontSize_(16), bold_(false), italic_(false)
  53 {
  54     element_ = new QGraphicsTextItem();
  55 }
  56
  57 bool TextElement::setAttribute(QString const& name, QString const& value)
  58 {
  59     int intVal = 0;
  60     int attrId = -1;
  61
  62     if((attrId = getAttribute(name, value, ATTRIBUTES, ATTRIBUTE_COUNT, intVal)) != -1)
  63     {
  64         Attribute attr = static_cast<Attribute>(attrId);
  65
  66         bool fontChanged = false;
  67
  68         switch(attr)
  69         {
  70         case XPOS:
  71             element_->setX(intVal);
  72             break;
  73         case YPOS:
  74             element_->setY(intVal);
  75             break;
  76         case DATA:
  77             data_ = value;
  78             break;
  79         case FORMAT:
  80             format_ = value;
  81             break;
  82         case WIDTH:
  83             element_->setTextWidth(intVal);
  84             break;
  85         case ALIGN:
  86             align_ = value;
  87             break;
  88         case COLOR:
  89             element_->setDefaultTextColor(QColor(value));
  90             break;
  91         case SIZE:
  92             fontSize_ = intVal;
  93             fontChanged = true;
  94             break;
  95         case FONT:
  96             fontFile_ = value;
  97             fontChanged = true;
  98             break;
  99         case BOLD:
 100             if(value != "false" && value != "0")
 101             {
 102                 bold_ = true;
 103                 fontChanged = true;
 104             }
 105             break;
 106         case ITALIC:
 107             if(value != "false" && value != "0")
 108             {
 109                 italic_ = true;
 110                 fontChanged = true;
 111             }
 112             break;
 113         default:
 114             qDebug() << "Unknown attribute: " << attr;
 115             return false;
 116         }
 117
 118         if(fontChanged)
 119         {
 120             if(!fontFile_.isEmpty())
 121             {
 122                 QFont font;
 123
 124                 if(getFont(fontFile_, font))
 125                 {
 126                     font.setPointSize(fontSize_);
 127
 128                     if(bold_)
 129                     {
 130                         font.setBold(true);
 131                     }
 132                     if(italic_)
 133                     {
 134                         font.setItalic(true);
 135                     }
 136                     element_->setFont(font);
 137                 }
 138                 else
 139                 {
 140                     return false;
 141                 }
 142             }
 143             else
 144             {
 145                 QFont font("Default");
 146
 147                 if(bold_)
 148                 {
 149                     font.setBold(true);
 150                 }
 151                 if(italic_)
 152                 {
 153                     font.setItalic(true);
 154                 }
 155
 156                 font.setPointSize(fontSize_);
 157                 element_->setFont(font);
 158             }
 159         }
 160
 161         return true;
 162
 163     }
 164     else
 165     {
 166         return false;
 167     }
 168 }
 169
 170 void TextElement::addToScene(GraphicsScene* scene)
 171 {
 172     specialFields_.clear();
 173
 174     for(int i = 0; i < FIELD_COUNT; i++)
 175     {
 176         if(data_.indexOf("{" + FIELDS[i] + "}") != -1)
 177         {
 178             specialFields_.push_back(static_cast<Field>(i));
 179         }
 180
 181     }
 182
 183     QString replaced = data_;
 184     replaceSpecialFields(replaced);
 185     updateHtml(replaced);
 186
 187     scene->addItem(element_);
 188 }
 189
 190 void TextElement::update()
 191 {
 192     if(specialFields_.isEmpty())
 193     {
 194         return;
 195     }
 196
 197     QString replaced = data_;
 198     replaceSpecialFields(replaced);
 199
 200     updateHtml(replaced);
 201 }
 202
 203 void TextElement::updateHtml(QString const& data)
 204 {
 205     element_->setHtml("<div align='"+align_+"'>"+data+"</div>");
 206 }
 207
 208 void TextElement::replaceSpecialFields(QString& value)
 209 {
 210     for(int i = 0; i < specialFields_.size(); i++)
 211     {
 212         Field f = specialFields_.at(i);
 213         Odometer* o = &(Odometer::instance());
 214
 215         switch(f)
 216         {
 217         case TRIP:
 218             replaceValue(value, f, formatString(o->getTrip()));
 219             break;
 220         case TOTAL:
 221             replaceValue(value, f, formatString(o->getTotal()));
 222             break;
 223         case SPEED:
 224             replaceValue(value, f, formatString(o->getLatestFix().speed));
 225             break;
 226         case MAXSPEED:
 227             replaceValue(value, f, formatString(o->getMaxSpeed()));
 228             break;
 229         case AVGSPEED:
 230             replaceValue(value, f, formatString(o->getAverageSpeed()));
 231             break;
 232         case UNIT:
 233             replaceValue(value, f, o->getUnit());
 234             break;
 235         case SPEEDUNIT:
 236             replaceValue(value, f, o->getSpeedUnit());
 237             break;
 238         case TIME:
 239             replaceValue(value, f, QTime::currentTime().toString("hh:mm"));
 240             break;
 241         default:
 242             qDebug() << "Unknown field: " << f;
 243         }
 244     }
 245 }
 246
 247 void TextElement::replaceValue(QString& value,
 248                                TextElement::Field field,
 249                                QString const& replace)
 250 {
 251     value = value.replace("{" + FIELDS[field] + "}", replace);
 252 }
 253
 254 QString TextElement::formatString(double val)
 255 {
 256     QString format = format_;
 257
 258     if(format.isEmpty())
 259     {
 260         format = "%.1lf";
 261     }
 262
 263     QString result;
 264     result.sprintf(format.toLatin1().data(), val);
 265
 266     return result;
 267 }
 268
 269
 270 QGraphicsItem* TextElement::getElement() const
 271 {
 272     return element_;
 273 }