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     };
  43
  44     const QString FIELDS[TextElement::FIELD_COUNT] =  {"TRIP", "TOTAL", "SPEED",
  45                                                        "MAXSPEED", "AVGSPEED",
  46                                                        "UNIT", "SPEEDUNIT", "TIME"};
  47 }
  48
  49 TextElement::TextElement(Reader* reader): GraphicsElement(reader),
  50 data_(""), format_(""), align_("left"), fontSize_(16)
  51 {
  52     element_ = new QGraphicsTextItem();
  53 }
  54
  55 bool TextElement::setAttribute(QString const& name, QString const& value)
  56 {
  57     int intVal = 0;
  58     int attrId = -1;
  59
  60     if((attrId = getAttribute(name, value, ATTRIBUTES, ATTRIBUTE_COUNT, intVal)) != -1)
  61     {
  62         Attribute attr = static_cast<Attribute>(attrId);
  63
  64         bool fontChanged = false;
  65
  66         switch(attr)
  67         {
  68         case XPOS:
  69             element_->setX(intVal);
  70             break;
  71         case YPOS:
  72             element_->setY(intVal);
  73             break;
  74         case DATA:
  75             data_ = value;
  76             break;
  77         case FORMAT:
  78             format_ = value;
  79             break;
  80         case WIDTH:
  81             element_->setTextWidth(intVal);
  82             break;
  83         case ALIGN:
  84             align_ = value;
  85             break;
  86         case COLOR:
  87             element_->setDefaultTextColor(QColor(value));
  88             break;
  89         case SIZE:
  90             fontSize_ = intVal;
  91             fontChanged = true;
  92             break;
  93         case FONT:
  94             fontFile_ = value;
  95             fontChanged = true;
  96             break;
  97         default:
  98             qDebug() << "Unknown attribute: " << attr;
  99             return false;
 100         }
 101
 102         if(fontChanged)
 103         {
 104             if(!fontFile_.isEmpty())
 105             {
 106                 QFont font;
 107
 108                 if(getFont(fontFile_, font))
 109                 {
 110                     font.setPointSize(fontSize_);
 111                     element_->setFont(font);
 112                 }
 113                 else
 114                 {
 115                     return false;
 116                 }
 117             }
 118             else
 119             {
 120                 element_->setFont(QFont("Default", fontSize_));
 121             }
 122         }
 123
 124         return true;
 125
 126     }
 127     else
 128     {
 129         return false;
 130     }
 131 }
 132
 133 void TextElement::addToScene(GraphicsScene* scene)
 134 {
 135     specialFields_.clear();
 136
 137     for(int i = 0; i < FIELD_COUNT; i++)
 138     {
 139         if(data_.indexOf("{" + FIELDS[i] + "}") != -1)
 140         {
 141             specialFields_.push_back(static_cast<Field>(i));
 142         }
 143
 144     }
 145
 146     QString replaced = data_;
 147     replaceSpecialFields(replaced);
 148     updateHtml(replaced);
 149
 150     scene->addItem(element_);
 151 }
 152
 153 void TextElement::update()
 154 {
 155     if(specialFields_.isEmpty())
 156     {
 157         return;
 158     }
 159
 160     QString replaced = data_;
 161     replaceSpecialFields(replaced);
 162
 163     updateHtml(replaced);
 164 }
 165
 166 void TextElement::updateHtml(QString const& data)
 167 {
 168     element_->setHtml("<div align='"+align_+"'>"+data+"</div>");
 169 }
 170
 171 void TextElement::replaceSpecialFields(QString& value)
 172 {
 173     for(int i = 0; i < specialFields_.size(); i++)
 174     {
 175         Field f = specialFields_.at(i);
 176         Odometer* o = &(Odometer::instance());
 177
 178         switch(f)
 179         {
 180         case TRIP:
 181             replaceValue(value, f, formatString(o->getTrip()));
 182             break;
 183         case TOTAL:
 184             replaceValue(value, f, formatString(o->getTotal()));
 185             break;
 186         case SPEED:
 187             replaceValue(value, f, formatString(o->getLatestFix().speed));
 188             break;
 189         case MAXSPEED:
 190             replaceValue(value, f, formatString(o->getMaxSpeed()));
 191             break;
 192         case AVGSPEED:
 193             replaceValue(value, f, formatString(o->getAverageSpeed()));
 194             break;
 195         case UNIT:
 196             replaceValue(value, f, o->getUnit());
 197             break;
 198         case SPEEDUNIT:
 199             replaceValue(value, f, o->getSpeedUnit());
 200             break;
 201         case TIME:
 202             replaceValue(value, f, QTime::currentTime().toString("hh:mm"));
 203             break;
 204         default:
 205             qDebug() << "Unknown field: " << f;
 206         }
 207     }
 208 }
 209
 210 void TextElement::replaceValue(QString& value,
 211                                TextElement::Field field,
 212                                QString const& replace)
 213 {
 214     value = value.replace("{" + FIELDS[field] + "}", replace);
 215 }
 216
 217 QString TextElement::formatString(double val)
 218 {
 219     QString format = format_;
 220
 221     if(format.isEmpty())
 222     {
 223         format = "%.1lf";
 224     }
 225
 226     QString result;
 227     result.sprintf(format.toLatin1().data(), val);
 228
 229     return result;
 230 }
 231
 232
 233 QGraphicsItem* TextElement::getElement() const
 234 {
 235     return element_;
 236 }