comparison: src/ui/canvas.cpp
src/ui/canvas.cpp
- changeset 170
- 9b655f6fe5a1
- parent 169
- 6da096930534
- child 172
- 50f055543ff6
equal
deleted
inserted
replaced
| 169:6da096930534 | 170:9b655f6fe5a1 |
|---|---|
| 118 { | 118 { |
| 119 PartRenderer::paintGL(); | 119 PartRenderer::paintGL(); |
| 120 if (this->renderPreferences.style != gl::RenderStyle::PickScene) | 120 if (this->renderPreferences.style != gl::RenderStyle::PickScene) |
| 121 { | 121 { |
| 122 // Render axes | 122 // Render axes |
| 123 if (this->renderPreferences.drawAxes) | |
| 123 { | 124 { |
| 124 glLineWidth(5); | 125 glLineWidth(5); |
| 125 glEnable(GL_LINE_SMOOTH); | 126 glEnable(GL_LINE_SMOOTH); |
| 126 glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); | 127 glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); |
| 127 this->axesProgram->draw(); | 128 this->axesProgram->draw(); |
| 159 painter.drawText(pos + QPointF{5, 5}, vectorToString(*this->worldPosition)); | 160 painter.drawText(pos + QPointF{5, 5}, vectorToString(*this->worldPosition)); |
| 160 } | 161 } |
| 161 { | 162 { |
| 162 QPainter painter{this}; | 163 QPainter painter{this}; |
| 163 painter.setRenderHint(QPainter::Antialiasing); | 164 painter.setRenderHint(QPainter::Antialiasing); |
| 164 QFont font; | 165 if (this->renderPreferences.drawAxes) |
| 165 //font.setStyle(QFont::StyleItalic); | |
| 166 painter.setFont(font); | |
| 167 QFontMetrics fontMetrics{font}; | |
| 168 const auto renderText = [&](const QString& text, const geom::PointOnRectagle& intersection) | |
| 169 { | 166 { |
| 170 QPointF position = toQPointF(intersection.position); | 167 this->renderAxesLabels(painter); |
| 171 const geom::RectangleSide side = intersection.side; | |
| 172 switch (side) | |
| 173 { | |
| 174 case geom::RectangleSide::Top: | |
| 175 position += QPointF{0, static_cast<qreal>(fontMetrics.ascent())}; | |
| 176 break; | |
| 177 case geom::RectangleSide::Left: | |
| 178 break; | |
| 179 case geom::RectangleSide::Bottom: | |
| 180 position += QPointF{0, static_cast<qreal>(-fontMetrics.descent())}; | |
| 181 break; | |
| 182 case geom::RectangleSide::Right: | |
| 183 position += QPointF{static_cast<qreal>(-fontMetrics.horizontalAdvance(text)), 0}; | |
| 184 break; | |
| 185 } | |
| 186 painter.drawText(position, text); | |
| 187 }; | |
| 188 const QRectF box {QPointF{0, 0}, sizeToSizeF(this->size())}; | |
| 189 const QPointF p1 = this->modelToScreenCoordinates(glm::vec3{0, 0, 0}); | |
| 190 | |
| 191 static const struct | |
| 192 { | |
| 193 QString text; | |
| 194 glm::vec3 direction; | |
| 195 } directions[] = | |
| 196 { | |
| 197 {"+𝑥", {1, 0, 0}}, | |
| 198 {"-𝑥", {-1, 0, 0}}, | |
| 199 {"+𝑦", {0, 1, 0}}, | |
| 200 {"-𝑦", {0, -1, 0}}, | |
| 201 {"+𝑧", {0, 0, 1}}, | |
| 202 {"-𝑧", {0, 0, -1}}, | |
| 203 }; | |
| 204 for (const auto& axis : directions) | |
| 205 { | |
| 206 const QPointF x_p = this->modelToScreenCoordinates(axis.direction); | |
| 207 const auto intersection = geom::rayRectangleIntersection( | |
| 208 geom::rayFromPoints(toVec2(p1), toVec2(x_p)), | |
| 209 box); | |
| 210 if (intersection.has_value()) | |
| 211 { | |
| 212 renderText(axis.text, *intersection); | |
| 213 } | |
| 214 } | 168 } |
| 215 if (this->overpaintCallback != nullptr) | 169 if (this->overpaintCallback != nullptr) |
| 216 { | 170 { |
| 217 this->overpaintCallback(this, &painter); | 171 this->overpaintCallback(this, &painter); |
| 218 } | 172 } |
| 173 } | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 /** | |
| 178 * @brief Renders labels such as +x at the ends of axes at the screen | |
| 179 * @param painter | |
| 180 */ | |
| 181 void Canvas::renderAxesLabels(QPainter& painter) | |
| 182 { | |
| 183 QFont font; | |
| 184 //font.setStyle(QFont::StyleItalic); | |
| 185 painter.setFont(font); | |
| 186 QFontMetrics fontMetrics{font}; | |
| 187 const auto renderText = [&](const QString& text, const geom::PointOnRectagle& intersection) | |
| 188 { | |
| 189 QPointF position = toQPointF(intersection.position); | |
| 190 const geom::RectangleSide side = intersection.side; | |
| 191 switch (side) | |
| 192 { | |
| 193 case geom::RectangleSide::Top: | |
| 194 position += QPointF{0, static_cast<qreal>(fontMetrics.ascent())}; | |
| 195 break; | |
| 196 case geom::RectangleSide::Left: | |
| 197 break; | |
| 198 case geom::RectangleSide::Bottom: | |
| 199 position += QPointF{0, static_cast<qreal>(-fontMetrics.descent())}; | |
| 200 break; | |
| 201 case geom::RectangleSide::Right: | |
| 202 position += QPointF{static_cast<qreal>(-fontMetrics.horizontalAdvance(text)), 0}; | |
| 203 break; | |
| 204 } | |
| 205 painter.drawText(position, text); | |
| 206 }; | |
| 207 const QRectF box {QPointF{0, 0}, sizeToSizeF(this->size())}; | |
| 208 const QPointF p1 = this->modelToScreenCoordinates(glm::vec3{0, 0, 0}); | |
| 209 static const struct | |
| 210 { | |
| 211 QString text; | |
| 212 glm::vec3 direction; | |
| 213 } directions[] = | |
| 214 { | |
| 215 {"+𝑥", {1, 0, 0}}, | |
| 216 {"-𝑥", {-1, 0, 0}}, | |
| 217 {"+𝑦", {0, 1, 0}}, | |
| 218 {"-𝑦", {0, -1, 0}}, | |
| 219 {"+𝑧", {0, 0, 1}}, | |
| 220 {"-𝑧", {0, 0, -1}}, | |
| 221 }; | |
| 222 for (const auto& axis : directions) | |
| 223 { | |
| 224 const QPointF x_p = this->modelToScreenCoordinates(axis.direction); | |
| 225 const auto intersection = geom::rayRectangleIntersection( | |
| 226 geom::rayFromPoints(toVec2(p1), toVec2(x_p)), | |
| 227 box); | |
| 228 if (intersection.has_value()) | |
| 229 { | |
| 230 renderText(axis.text, *intersection); | |
| 219 } | 231 } |
| 220 } | 232 } |
| 221 } | 233 } |
| 222 | 234 |
| 223 /** | 235 /** |
