comparison: src/ui/canvas.cpp
src/ui/canvas.cpp
- changeset 71
- 198d25fe4e21
- parent 70
- f21b800b02a4
- child 73
- 97df974b5ed5
equal
deleted
inserted
replaced
| 70:f21b800b02a4 | 71:198d25fe4e21 |
|---|---|
| 178 const QPointF pos = this->modelToScreenCoordinates(*this->worldPosition); | 178 const QPointF pos = this->modelToScreenCoordinates(*this->worldPosition); |
| 179 painter.drawEllipse(pos, 5, 5); | 179 painter.drawEllipse(pos, 5, 5); |
| 180 painter.setPen(Qt::white); | 180 painter.setPen(Qt::white); |
| 181 painter.drawText(pos + QPointF{5, 5}, vectorToString(*this->worldPosition)); | 181 painter.drawText(pos + QPointF{5, 5}, vectorToString(*this->worldPosition)); |
| 182 } | 182 } |
| 183 { | |
| 184 QPainter painter{this}; | |
| 185 QFont font; | |
| 186 //font.setStyle(QFont::StyleItalic); | |
| 187 painter.setFont(font); | |
| 188 QFontMetrics fontMetrics{font}; | |
| 189 const auto renderText = [&](const QString& text, const geom::PointOnRectagle& intersection) | |
| 190 { | |
| 191 QPointF position = toQPointF(intersection.position); | |
| 192 const geom::RectangleSide side = intersection.side; | |
| 193 switch (side) | |
| 194 { | |
| 195 case geom::RectangleSide::Top: | |
| 196 position += QPointF{0, static_cast<qreal>(fontMetrics.ascent())}; | |
| 197 break; | |
| 198 case geom::RectangleSide::Left: | |
| 199 break; | |
| 200 case geom::RectangleSide::Bottom: | |
| 201 position += QPointF{0, static_cast<qreal>(-fontMetrics.descent())}; | |
| 202 break; | |
| 203 case geom::RectangleSide::Right: | |
| 204 position += QPointF{static_cast<qreal>(-fontMetrics.width(text)), 0}; | |
| 205 break; | |
| 206 } | |
| 207 painter.drawText(position, text); | |
| 208 }; | |
| 209 const QRectF box { | |
| 210 QPointF{0, 0}, | |
| 211 QPointF{static_cast<qreal>(this->width()), static_cast<qreal>(this->height())} | |
| 212 }; | |
| 213 const QPointF p1 = this->modelToScreenCoordinates(glm::vec3{0, 0, 0}); | |
| 214 | |
| 215 static const struct | |
| 216 { | |
| 217 QString text; | |
| 218 glm::vec3 direction; | |
| 219 } directions[] = | |
| 220 { | |
| 221 {"+𝑥", {1, 0, 0}}, | |
| 222 {"-𝑥", {-1, 0, 0}}, | |
| 223 {"+𝑦", {0, 1, 0}}, | |
| 224 {"-𝑦", {0, -1, 0}}, | |
| 225 {"+𝑧", {0, 0, 1}}, | |
| 226 {"-𝑧", {0, 0, -1}}, | |
| 227 }; | |
| 228 for (const auto& axis : directions) | |
| 229 { | |
| 230 const QPointF x_p = this->modelToScreenCoordinates(axis.direction); | |
| 231 const auto intersection = geom::rayRectangleIntersection(geom::rayFromPoints(toVec2(p1), toVec2(x_p)), box); | |
| 232 if (intersection.has_value()) | |
| 233 { | |
| 234 renderText(axis.text, *intersection); | |
| 235 } | |
| 236 } | |
| 237 } | |
| 183 } | 238 } |
| 184 | 239 |
| 185 void Canvas::updateGridMatrix() | 240 void Canvas::updateGridMatrix() |
| 186 { | 241 { |
| 187 const geom::Triangle triangle { | 242 const geom::Triangle triangle { |
