1 | /* |
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2 | * Copyright (C) 2010 Ixonos Plc. |
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3 | * Copyright (C) 2011-2015 Philipp Spitzer, gregor herrmann, Stefan Stahl |
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4 | * |
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5 | * This file is part of ConfClerk. |
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6 | * |
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7 | * ConfClerk is free software: you can redistribute it and/or modify it |
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8 | * under the terms of the GNU General Public License as published by the Free |
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9 | * Software Foundation, either version 2 of the License, or (at your option) |
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10 | * any later version. |
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11 | * |
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12 | * ConfClerk is distributed in the hope that it will be useful, but |
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13 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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14 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 | * more details. |
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16 | * |
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17 | * You should have received a copy of the GNU General Public License along with |
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18 | * ConfClerk. If not, see <http://www.gnu.org/licenses/>. |
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19 | */ |
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20 | #include "delegate.h" |
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21 | #include "eventmodel.h" |
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22 | #include "track.h" |
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23 | |
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24 | #include <QDebug> |
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25 | #include <QPainter> |
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26 | |
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27 | #include "room.h" |
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28 | |
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29 | const int RADIUS = 10; |
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30 | const int SPACER = 10; |
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31 | |
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32 | const double scaleFactor1 = 0.4; |
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33 | const double scaleFactor2 = 0.8; |
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34 | |
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35 | Delegate::Delegate(QTreeView *aParent) |
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36 | : QItemDelegate(aParent) |
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37 | , mViewPtr(aParent) |
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38 | { |
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39 | mControls.clear(); |
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40 | defineControls(); |
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41 | } |
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42 | |
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43 | Delegate::~Delegate() |
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44 | { |
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45 | QListIterator<ControlId> i(mControls.keys()); |
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46 | while (i.hasNext()) |
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47 | { |
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48 | delete mControls[i.next()]->image(); |
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49 | } |
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50 | } |
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51 | |
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52 | void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const |
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53 | { |
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54 | if (!mViewPtr) |
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55 | return; |
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56 | |
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57 | painter->save(); |
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58 | |
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59 | QColor textColor = option.palette.color(QPalette::Text); |
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60 | |
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61 | if(hasParent(index)) |
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62 | { |
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63 | Event *event = static_cast<Event*>(index.internalPointer()); |
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64 | |
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65 | // determine severity of conflict |
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66 | Favourite eventTimeConflict = event->timeConflict(); // cache value as event->timeConflict is expensive |
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67 | enum ConflictSeverity {csNone, csWeak, csStrong} conflictSeverity; |
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68 | switch (event->favourite()) { |
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69 | case Favourite_strong: |
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70 | conflictSeverity = (eventTimeConflict == Favourite_strong) ? csStrong : csNone; |
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71 | break; |
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72 | case Favourite_weak: |
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73 | conflictSeverity = (eventTimeConflict == Favourite_no) ? csNone : csWeak; |
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74 | break; |
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75 | case Favourite_no: |
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76 | conflictSeverity = csNone; |
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77 | break; |
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78 | } |
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79 | |
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80 | // entry horizontal layout: |
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81 | // * spacer (aka y position of image) |
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82 | // * image |
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83 | // * rest is text, which is 1 line of title with big letters and 2 lines of Presenter and Track |
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84 | int aux = option.rect.height() - SPACER - mControls[FavouriteControlStrong]->image()->height(); |
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85 | |
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86 | // font SMALL |
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87 | QFont fontSmall = option.font; |
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88 | fontSmall.setBold(false); |
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89 | fontSmall.setPixelSize(aux*0.2); |
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90 | QFontMetrics fmSmall(fontSmall); |
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91 | // font SMALL bold |
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92 | QFont fontSmallB = fontSmall; |
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93 | fontSmallB.setBold(true); |
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94 | |
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95 | // font BIG |
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96 | QFont fontBig = option.font; |
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97 | fontBig.setBold(false); |
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98 | fontBig.setPixelSize(aux*0.33); |
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99 | QFontMetrics fmBig(fontBig); |
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100 | |
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101 | // font BIG bold |
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102 | QFont fontBigB = fontBig; |
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103 | fontBigB.setBold(true); |
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104 | QFontMetrics fmBigB(fontBigB); |
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105 | |
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106 | // background (in case of time conflicts) |
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107 | if (conflictSeverity != csNone) { |
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108 | painter->setBrush(conflictSeverity == csStrong ? Qt::yellow : QColor("lightyellow")); |
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109 | painter->setPen(Qt::NoPen); |
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110 | painter->drawRect(option.rect); |
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111 | } |
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112 | |
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113 | // background (without time conflicts) |
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114 | else { |
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115 | QStyleOption styleOption; |
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116 | styleOption.rect = option.rect; |
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117 | qApp->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &styleOption, painter, mViewPtr); |
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118 | } |
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119 | |
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120 | // draw Controls |
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121 | foreach(Control* c, mControls.values()) { |
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122 | c->setEnabled(false); |
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123 | } |
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124 | switch (event->favourite()) { |
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125 | case Favourite_strong: |
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126 | mControls[FavouriteControlStrong]->paint(painter, option.rect); |
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127 | break; |
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128 | case Favourite_weak: |
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129 | mControls[FavouriteControlWeak]->paint(painter, option.rect); |
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130 | break; |
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131 | case Favourite_no: |
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132 | mControls[FavouriteControlNo]->paint(painter, option.rect); |
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133 | break; |
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134 | } |
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135 | |
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136 | if(event->hasAlarm()) |
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137 | mControls[AlarmControlOn]->paint(painter, option.rect); |
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138 | else |
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139 | mControls[AlarmControlOff]->paint(painter, option.rect); |
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140 | |
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141 | if(eventTimeConflict != Favourite_no) |
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142 | mControls[WarningControl]->paint(painter, option.rect); |
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143 | |
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144 | // draw texts |
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145 | // it starts just below the image |
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146 | // ("position of text" is lower-left angle of the first letter, |
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147 | // so the first line is actually at the same height as the image) |
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148 | painter->setPen(QPen(conflictSeverity != csNone ? Qt::black : textColor)); |
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149 | QPointF titlePointF(option.rect.x() + SPACER, |
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150 | option.rect.y() + SPACER + mControls[FavouriteControlStrong]->image()->height()); |
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151 | QTime start = event->start().time(); |
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152 | painter->setFont(fontBig); |
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153 | painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->roomName()); |
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154 | |
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155 | // title |
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156 | titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent()); |
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157 | painter->setFont(fontBigB); |
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158 | QString title = event->title(); |
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159 | if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen |
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160 | { |
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161 | // chop words from the end |
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162 | while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty()) |
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163 | { |
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164 | title.chop(1); |
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165 | // chop characters one-by-one from the end |
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166 | while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty()) |
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167 | { |
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168 | title.chop(1); |
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169 | } |
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170 | } |
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171 | title += "..."; |
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172 | } |
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173 | painter->drawText(titlePointF,title); |
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174 | |
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175 | // persons |
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176 | titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent()); |
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177 | painter->setFont(fontSmall); |
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178 | QString presenterPrefix = event->persons().count() < 2 ? "Presenter" : "Presenters"; |
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179 | painter->drawText(titlePointF,presenterPrefix + ": " + event->persons().join(" and ")); |
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180 | |
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181 | // track |
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182 | titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent()); |
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183 | painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId())); |
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184 | } |
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185 | |
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186 | else // doesn't have parent - time-groups' elements (top items) |
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187 | { |
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188 | int numFav = numberOfFavourities(index); |
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189 | int numAlarm = numberOfAlarms(index); |
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190 | |
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191 | QStyleOptionButton styleOptionButton; |
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192 | styleOptionButton.rect = option.rect; |
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193 | if (isExpanded(index)) styleOptionButton.state = QStyle::State_Sunken; |
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194 | // styleOptionButton.text = qVariantValue<QString>(index.data()); |
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195 | qApp->style()->drawPrimitive(QStyle::PE_PanelButtonCommand, &styleOptionButton, painter, mViewPtr); |
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196 | // qApp->style()->drawControl(QStyle::CE_PushButtonLabel, &styleOptionButton, painter, mViewPtr); |
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197 | // qApp->style()->drawPrimitive(QStyle::PE_IndicatorArrowDown, &styleOptionButton, painter, mViewPtr); |
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198 | |
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199 | QFont fontSmall = option.font; |
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200 | fontSmall.setBold(true); |
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201 | fontSmall.setPixelSize(option.rect.height()*scaleFactor1); |
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202 | QFontMetrics fmSmall(fontSmall); |
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203 | |
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204 | QFont fontBig = option.font; |
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205 | fontBig.setBold(true); |
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206 | fontBig.setPixelSize(option.rect.height()*scaleFactor2); |
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207 | QFontMetrics fmBig(fontBig); |
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208 | |
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209 | int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width(); |
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210 | |
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211 | // draw icons |
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212 | painter->setPen(QPen(textColor)); |
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213 | painter->setFont(fontSmall); |
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214 | QImage *image = mControls[numFav ? FavouriteControlStrong : FavouriteControlNo]->image(); |
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215 | QPoint drawPoint = |
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216 | option.rect.topRight() |
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217 | - QPoint( |
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218 | spacer + image->width(), |
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219 | - option.rect.height()/2 + image->height()/2); |
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220 | painter->drawImage(drawPoint,*image); |
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221 | painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2), |
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222 | QString::number(numFav)); |
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223 | |
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224 | drawPoint.setX(drawPoint.x() - spacer - image->width()); |
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225 | image = mControls[numAlarm ? AlarmControlOn : AlarmControlOff]->image(); |
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226 | painter->drawImage(drawPoint,*image); |
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227 | painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2), |
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228 | QString::number(numAlarm)); |
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229 | |
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230 | // draw texts |
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231 | QString numEvents = QString::number(index.model()->rowCount(index)).append("/"); |
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232 | drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width()); |
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233 | drawPoint.setY(drawPoint.y()+image->height() - 2); |
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234 | painter->drawText(drawPoint,numEvents); |
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235 | |
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236 | QPointF titlePointF = QPoint( |
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237 | option.rect.x()+SPACER, |
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238 | option.rect.y()+option.rect.height()-fmBig.descent()); |
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239 | painter->setFont(fontBig); |
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240 | painter->drawText(titlePointF,qVariantValue<QString>(index.data())); |
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241 | } |
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242 | |
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243 | painter->restore(); |
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244 | } |
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245 | |
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246 | QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const |
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247 | { |
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248 | Q_UNUSED(option) |
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249 | |
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250 | if (index.internalId() == 0) // time group |
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251 | { |
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252 | return QSize(40,40); |
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253 | } |
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254 | else // event |
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255 | { |
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256 | return QSize(100,100); |
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257 | } |
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258 | } |
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259 | |
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260 | bool Delegate::hasParent( const QModelIndex &index ) const |
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261 | { |
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262 | if( index.parent().isValid() ) |
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263 | return true; |
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264 | else |
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265 | return false; |
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266 | } |
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267 | |
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268 | bool Delegate::isLast( const QModelIndex &index ) const |
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269 | { |
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270 | if(!hasParent(index)) |
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271 | return false; // what should be returned here? |
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272 | |
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273 | if(index.row() >= (index.model()->rowCount(index.parent())-1)) |
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274 | return true; |
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275 | else |
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276 | return false; |
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277 | } |
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278 | |
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279 | bool Delegate::isExpanded( const QModelIndex &index ) const |
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280 | { |
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281 | if( !mViewPtr ) |
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282 | return false; |
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283 | else |
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284 | return mViewPtr->isExpanded( index ); |
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285 | } |
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286 | |
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287 | Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const |
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288 | { |
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289 | if(!hasParent(aIndex)) // time-group item (root item) |
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290 | return ControlNone; |
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291 | |
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292 | QListIterator<ControlId> i(mControls.keys()); |
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293 | while (i.hasNext()) |
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294 | { |
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295 | ControlId id = i.next(); |
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296 | Control *control = mControls[id]; |
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297 | if (control->enabled() |
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298 | and control->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint)) |
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299 | { |
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300 | return id; |
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301 | } |
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302 | } |
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303 | |
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304 | return ControlNone; |
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305 | } |
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306 | |
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307 | Delegate::Control::Control(ControlId aControlId, const QString &aImageName, const Control* prev_control) |
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308 | : mId(aControlId) |
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309 | , mImage(new QImage(aImageName)) |
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310 | , mDrawPoint(QPoint(0,0)) |
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311 | , mEnabled(false) |
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312 | { |
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313 | QPoint p; |
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314 | if (prev_control == NULL) { |
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315 | p = QPoint(0, SPACER); |
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316 | } else { |
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317 | p = prev_control->drawPoint(); |
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318 | } |
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319 | p.setX(p.x()-image()->width()-SPACER); |
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320 | setDrawPoint(p); |
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321 | } |
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322 | |
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323 | void Delegate::Control::paint(QPainter* painter, const QRect rect) |
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324 | { |
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325 | painter->drawImage(drawPoint(rect),*image()); |
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326 | setEnabled(true); |
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327 | } |
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328 | |
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329 | void Delegate::defineControls() |
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330 | { |
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331 | // FAVOURITE ICONs |
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332 | // strong |
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333 | mControls.insert(FavouriteControlStrong, new Control(FavouriteControlStrong, QString(":icons/favourite-on.png"), NULL)); |
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334 | // weak |
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335 | mControls.insert(FavouriteControlWeak, new Control(FavouriteControlWeak, QString(":icons/favourite-weak.png"), NULL)); |
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336 | // no |
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337 | mControls.insert(FavouriteControlNo, new Control(FavouriteControlNo, QString(":icons/favourite-off.png"), NULL)); |
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338 | |
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339 | // ALARM ICONs |
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340 | // on |
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341 | mControls.insert(AlarmControlOn, |
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342 | new Control(AlarmControlOn, QString(":icons/alarm-on.png"), mControls[FavouriteControlStrong])); |
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343 | // off |
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344 | mControls.insert(AlarmControlOff, |
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345 | new Control(AlarmControlOff, QString(":icons/alarm-off.png"), mControls[FavouriteControlNo])); |
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346 | // WARNING ICON |
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347 | mControls.insert(WarningControl, |
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348 | new Control(WarningControl, QString(":icons/dialog-warning.png"), mControls[AlarmControlOff])); |
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349 | } |
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350 | |
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351 | bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const |
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352 | { |
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353 | if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) ) |
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354 | return true; |
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355 | |
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356 | return false; |
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357 | } |
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358 | |
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359 | int Delegate::numberOfFavourities(const QModelIndex &index) const |
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360 | { |
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361 | if(index.parent().isValid()) // it's event, not time-group |
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362 | return 0; |
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363 | |
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364 | int nrofFavs = 0; |
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365 | for(int i=0; i<index.model()->rowCount(index); i++) |
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366 | if(static_cast<Event*>(index.child(i,0).internalPointer())->favourite() != Favourite_no) |
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367 | nrofFavs++; |
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368 | |
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369 | return nrofFavs; |
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370 | } |
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371 | |
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372 | int Delegate::numberOfAlarms(const QModelIndex &index) const |
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373 | { |
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374 | if(index.parent().isValid()) // it's event, not time-group |
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375 | return 0; |
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376 | |
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377 | int nrofAlarms = 0; |
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378 | for(int i=0; i<index.model()->rowCount(index); i++) |
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379 | if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm()) |
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380 | nrofAlarms++; |
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381 | |
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382 | return nrofAlarms; |
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383 | } |
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384 | |
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