comparison: src/glrenderer.cpp
src/glrenderer.cpp
- changeset 1251
- e75cc5bff076
- parent 1248
- 8059668a2cf3
- child 1278
- 6e1ea24e5a5e
equal
deleted
inserted
replaced
| 1250:e2755ccf3667 | 1251:e75cc5bff076 |
|---|---|
| 701 } | 701 } |
| 702 | 702 |
| 703 /* | 703 /* |
| 704 * Returns the set of objects found in the specified pixel area. | 704 * Returns the set of objects found in the specified pixel area. |
| 705 */ | 705 */ |
| 706 QSet<LDObject*> GLRenderer::pick(const QRect& range) | 706 QItemSelection GLRenderer::pick(const QRect& range) |
| 707 { | 707 { |
| 708 makeCurrent(); | 708 makeCurrent(); |
| 709 QSet<LDObject*> newSelection; | 709 QItemSelection result; |
| 710 | 710 |
| 711 // Paint the picking scene | 711 // Paint the picking scene |
| 712 setPicking(true); | 712 setPicking(true); |
| 713 drawGLScene(); | 713 drawGLScene(); |
| 714 | 714 |
| 731 pixelData.resize(4 * numpixels); | 731 pixelData.resize(4 * numpixels); |
| 732 | 732 |
| 733 // Read pixels from the color buffer. | 733 // Read pixels from the color buffer. |
| 734 glReadPixels(x0, height() - y1, areawidth, areaheight, GL_RGBA, GL_UNSIGNED_BYTE, pixelData.data()); | 734 glReadPixels(x0, height() - y1, areawidth, areaheight, GL_RGBA, GL_UNSIGNED_BYTE, pixelData.data()); |
| 735 | 735 |
| 736 QSet<qint32> indices; | 736 QSet<qint32> ids; |
| 737 | 737 |
| 738 // Go through each pixel read and add them to the selection. | 738 // Go through each pixel read and add them to the selection. |
| 739 // Each pixel maps to an LDObject index injectively. | 739 // Each pixel maps to an LDObject index injectively. |
| 740 // Note: black is background, those indices are skipped. | 740 // Note: black is background, those indices are skipped. |
| 741 for (unsigned char *pixelCursor = pixelData.begin(); pixelCursor < pixelData.end(); pixelCursor += 4) | 741 for (unsigned char *pixelCursor = pixelData.begin(); pixelCursor < pixelData.end(); pixelCursor += 4) |
| 742 { | 742 { |
| 743 qint32 index = pixelCursor[0] * 0x10000 + pixelCursor[1] * 0x100 + pixelCursor[2] * 0x1; | 743 qint32 id = pixelCursor[0] * 0x10000 + pixelCursor[1] * 0x100 + pixelCursor[2] * 0x1; |
| 744 if (index != 0) | 744 if (id != 0) |
| 745 indices.insert(index); | 745 ids.insert(id); |
| 746 } | 746 } |
| 747 | 747 |
| 748 // For each index read, resolve the LDObject behind it and add it to the selection. | 748 // For each index read, resolve the LDObject behind it and add it to the selection. |
| 749 for (qint32 index : indices) | 749 for (qint32 id : ids) |
| 750 { | 750 { |
| 751 LDObject* object = LDObject::fromID(index); | 751 QModelIndex index = m_model->indexFromId(id); |
| 752 | 752 |
| 753 if (object != nullptr) | 753 if (index.isValid()) |
| 754 newSelection.insert(object); | 754 result.select(index, index); |
| 755 } | 755 } |
| 756 | 756 |
| 757 setPicking(false); | 757 setPicking(false); |
| 758 repaint(); | 758 repaint(); |
| 759 return newSelection; | 759 return result; |
| 760 } | 760 } |
| 761 | 761 |
| 762 /* | 762 /* |
| 763 * Simpler version of GLRenderer::pick which simply picks whatever object on the cursor | 763 * Simpler version of GLRenderer::pick which simply picks whatever object on the cursor |
| 764 */ | 764 */ |
| 765 LDObject* GLRenderer::pick(int mouseX, int mouseY) | 765 QModelIndex GLRenderer::pick(int mouseX, int mouseY) |
| 766 { | 766 { |
| 767 unsigned char pixel[4]; | |
| 768 makeCurrent(); | 767 makeCurrent(); |
| 769 setPicking(true); | 768 setPicking(true); |
| 770 drawGLScene(); | 769 drawGLScene(); |
| 770 unsigned char pixel[4]; | |
| 771 glReadPixels(mouseX, height() - mouseY, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel); | 771 glReadPixels(mouseX, height() - mouseY, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel); |
| 772 LDObject* object = LDObject::fromID(pixel[0] * 0x10000 + pixel[1] * 0x100 + pixel[2]); | 772 QModelIndex result = m_model->indexFromId(pixel[0] * 0x10000 + pixel[1] * 0x100 + pixel[2]); |
| 773 setPicking(false); | 773 setPicking(false); |
| 774 repaint(); | 774 repaint(); |
| 775 return object; | 775 return result; |
| 776 } | 776 } |
| 777 | 777 |
| 778 // ============================================================================= | 778 // ============================================================================= |
| 779 // | 779 // |
| 780 void GLRenderer::setPicking(bool picking) | 780 void GLRenderer::setPicking(bool picking) |
| 1016 * This virtual function lets derivative classes render something to the fixed camera | 1016 * This virtual function lets derivative classes render something to the fixed camera |
| 1017 * before the main brick is rendered. | 1017 * before the main brick is rendered. |
| 1018 */ | 1018 */ |
| 1019 void GLRenderer::drawFixedCameraBackdrop() {} | 1019 void GLRenderer::drawFixedCameraBackdrop() {} |
| 1020 | 1020 |
| 1021 QItemSelectionModel* GLRenderer::selectionModel() const | |
| 1022 { | |
| 1023 return m_compiler->selectionModel(); | |
| 1024 } | |
| 1025 | |
| 1021 void GLRenderer::setSelectionModel(QItemSelectionModel* selectionModel) | 1026 void GLRenderer::setSelectionModel(QItemSelectionModel* selectionModel) |
| 1022 { | 1027 { |
| 1023 this->m_compiler->setSelectionModel(selectionModel); | 1028 this->m_compiler->setSelectionModel(selectionModel); |
| 1024 } | 1029 } |
