comparison: src/canvas.cpp
src/canvas.cpp
- changeset 1178
- 3a88e7a60b63
- parent 1177
- 8661b9237ed5
- child 1181
- ca6d0ef9aadb
equal
deleted
inserted
replaced
| 1177:8661b9237ed5 | 1178:3a88e7a60b63 |
|---|---|
| 88 y += metrics.height(); | 88 y += metrics.height(); |
| 89 } | 89 } |
| 90 } | 90 } |
| 91 } | 91 } |
| 92 | 92 |
| 93 /* | |
| 94 * Assuming we're currently viewing from a fixed camera, draw a backdrop into it. Currently this means drawing the grid. | |
| 95 */ | |
| 96 void Canvas::drawFixedCameraBackdrop() | |
| 97 { | |
| 98 // Find the top left corner of the grid | |
| 99 Vertex topLeft = currentCamera().idealize(currentCamera().convert2dTo3d({0, 0})); | |
| 100 Vertex bottomRight = currentCamera().idealize(currentCamera().convert2dTo3d({width(), height()})); | |
| 101 qreal gridSize = grid()->coordinateSnap(); | |
| 102 qreal x0 = sign(topLeft.x()) * (fabs(topLeft.x()) - fmod(fabs(topLeft.x()), gridSize)); | |
| 103 qreal y0 = sign(topLeft.y()) * (fabs(topLeft.y()) - fmod(fabs(topLeft.y()), gridSize)); | |
| 104 glEnable(GL_LINE_STIPPLE); | |
| 105 glBegin(GL_LINES); | |
| 106 | |
| 107 static const auto prepareGridLine = [](qreal value) -> bool | |
| 108 { | |
| 109 if (not isZero(value)) | |
| 110 { | |
| 111 if (isZero(fmod(value, 10.0))) | |
| 112 glColor4f(0, 0, 0, 0.6); | |
| 113 else | |
| 114 glColor4f(0, 0, 0, 0.25); | |
| 115 | |
| 116 return true; | |
| 117 } | |
| 118 else | |
| 119 { | |
| 120 return false; | |
| 121 } | |
| 122 }; | |
| 123 | |
| 124 for (qreal x = x0; x < bottomRight.x(); x += gridSize) | |
| 125 { | |
| 126 if (prepareGridLine(x)) | |
| 127 { | |
| 128 glVertex(currentCamera().realize({x, -10000, 999})); | |
| 129 glVertex(currentCamera().realize({x, 10000, 999})); | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 for (qreal y = y0; y < bottomRight.y(); y += gridSize) | |
| 134 { | |
| 135 if (prepareGridLine(y)) | |
| 136 { | |
| 137 glVertex(currentCamera().realize({-10000, y, 999})); | |
| 138 glVertex(currentCamera().realize({10000, y, 999})); | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 glEnd(); | |
| 143 glDisable(GL_LINE_STIPPLE); | |
| 144 } | |
| 145 | |
| 93 bool Canvas::freeCameraAllowed() const | 146 bool Canvas::freeCameraAllowed() const |
| 94 { | 147 { |
| 95 return m_currentEditMode->allowFreeCamera(); | 148 return m_currentEditMode->allowFreeCamera(); |
| 96 } | 149 } |
| 97 | 150 |
