src/model.cpp

Tue, 27 Jul 2021 16:29:00 +0300

author
Teemu Piippo <teemu@hecknology.net>
date
Tue, 27 Jul 2021 16:29:00 +0300
changeset 118
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parent 112
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child 133
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permissions
-rw-r--r--

Add vertex rendering

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1 /*
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2 * LDForge: LDraw parts authoring CAD
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3 * Copyright (C) 2013 - 2020 Teemu Piippo
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4 *
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5 * This program is free software: you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation, either version 3 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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19 #include <QBrush>
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20 #include <QFont>
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21 #include "model.h"
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22 #include "modeleditcontext.h"
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23
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24 Model::Model(QObject* parent) :
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25 QAbstractListModel{parent}
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26 {
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27 connect(this, &Model::dataChanged, [&](){ this->needRecache = true; });
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28 }
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29
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30 int Model::size() const
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31 {
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32 return static_cast<int>(this->body.size());
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33 }
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34
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35 Model::EditContext Model::edit()
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36 {
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37 return {*this};
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38 }
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39
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40 int Model::rowCount(const QModelIndex&) const
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41 {
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42 return size();
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43 }
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44
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45 QVariant Model::data(const QModelIndex& index, int role) const
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46 {
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47 const ldraw::Object* object = this->objectAt(index);
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48 switch(role)
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49 {
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50 case Qt::DisplayRole:
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51 return object->textRepresentation();
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52 case Qt::ForegroundRole:
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53 return object->textRepresentationForeground();
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54 case Qt::BackgroundRole:
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55 return object->textRepresentationBackground();
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56 case Qt::FontRole:
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57 return object->textRepresentationFont();
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58 default:
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59 return {};
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60 }
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61 }
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62
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63 QVariant Model::getHeaderProperty(const HeaderProperty property)
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64 {
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65 switch (property)
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66 {
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67 case HeaderProperty::Name:
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68 return header.name;
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69 }
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70 return {};
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71 }
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72
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73 QVariant Model::getObjectProperty(const int index, const ldraw::Property property) const
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74 {
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75 const ldraw::Object* object = this->body[unsigned_cast(index)].get();
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76 return object->getProperty(property);
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77 }
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78
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79 std::vector<gl::Polygon> Model::getPolygons(DocumentManager* documents) const
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80 {
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81 if (this->needRecache)
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82 {
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83 this->cachedPolygons.clear();
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84 ldraw::GetPolygonsContext context{documents};
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85 for (int i = 0; i < this->size(); i += 1)
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86 {
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87 this->getObjectPolygons(i, this->cachedPolygons, &context);
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88 }
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89 this->needRecache = false;
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90 }
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91 return this->cachedPolygons;
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92 }
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93
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94 QModelIndex Model::lookup(ldraw::id_t id) const
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95 {
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96 // FIXME: This linear search will probably cause performance issues
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97 for (std::size_t i = 0; i < this->body.size(); i += 1)
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98 {
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99 if (this->body[i]->id == id)
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100 {
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101 return this->index(static_cast<int>(i));
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102 }
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103 }
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104 return {};
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105 }
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106
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107 ldraw::id_t Model::resolve(const QModelIndex& index) const
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108 {
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109 return this->objectAt(index)->id;
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110 }
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111
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112 void Model::getObjectPolygons(
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113 const int index,
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114 std::vector<gl::Polygon>& polygons_out,
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115 ldraw::GetPolygonsContext* context) const
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116 {
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117 const ldraw::Object* object = this->body[unsigned_cast(index)].get();
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118 object->getPolygons(polygons_out, context);
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119 }
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120
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121 void Model::append(ModelObjectPointer&& object)
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122 {
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123 const int position = static_cast<int>(this->body.size());
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124 Q_EMIT beginInsertRows({}, position, position);
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125 this->body.push_back(std::move(object));
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126 Q_EMIT endInsertRows();
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127 this->needRecache = true;
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128 }
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129
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130 void Model::remove(int position)
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131 {
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132 if (position >= 0 and position < signed_cast(this->body.size()))
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133 {
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134 Q_EMIT beginRemoveRows({}, position, position);
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135 this->body.erase(std::begin(this->body) + position);
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136 Q_EMIT endRemoveRows();
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137 this->needRecache = true;
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138 }
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139 }
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140
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141 ldraw::Object* Model::objectAt(const QModelIndex& index)
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142 {
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143 return this->body[unsigned_cast(index.row())].get();
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144 }
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145
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146 const ldraw::Object* Model::objectAt(const QModelIndex& index) const
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147 {
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148 return this->body[unsigned_cast(index.row())].get();
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149 }

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