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Add Measurement Mouse Tool to orthoviews (#2303)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| #include "MeasurementTool.h" | ||
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| #include "iclipper.h" | ||
| #include "iuimanager.h" | ||
| #include "XYMouseToolEvent.h" | ||
| #include "selectionlib.h" | ||
| #include "string/convert.h" | ||
| #include <boost/format.hpp> | ||
|
|
||
| namespace ui | ||
| { | ||
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| MeasurementTool::MeasurementTool() : | ||
| _points(GL_POINTS), | ||
| _lines(GL_LINE_STRIP) | ||
| {} | ||
|
|
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| const std::string& MeasurementTool::getName() | ||
| { | ||
| static std::string name("MeasurementTool"); | ||
| return name; | ||
| } | ||
|
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| const std::string& MeasurementTool::getDisplayName() | ||
| { | ||
| static std::string displayName(_("Measure")); | ||
| return displayName; | ||
| } | ||
|
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| MouseTool::Result MeasurementTool::onMouseDown(Event& ev) | ||
| { | ||
| try | ||
| { | ||
| if (GlobalClipper().clipMode()) | ||
| { | ||
| return Result::Ignored; // no measurement in clip mode | ||
| } | ||
|
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| // We only operate on XY view events, so attempt to cast | ||
| XYMouseToolEvent& xyEvent = dynamic_cast<XYMouseToolEvent&>(ev); | ||
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| Vector3 clickPos = xyEvent.getWorldPos(); | ||
| xyEvent.getView().snapToGrid(clickPos); | ||
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| assert(_lines.size() == _points.size()); | ||
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| VertexCb clickVertex(clickPos, Colour4b()); | ||
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| if (_points.empty()) | ||
| { | ||
| // If we just started, allocate two points | ||
| _points.push_back(clickVertex); | ||
| _points.push_back(clickVertex); | ||
|
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| // Copy the vertices to the lines vector | ||
| _lines.push_back(clickVertex); | ||
| _lines.push_back(clickVertex); | ||
| } | ||
| else | ||
| { | ||
| // Store the click position and add a new vertex | ||
| _points[_points.size() - 1].vertex = clickVertex.vertex; | ||
| _lines[_lines.size() - 1].vertex = clickVertex.vertex; | ||
|
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| // Add one additional point to the chain | ||
| _points.push_back(clickVertex); | ||
| _lines.push_back(clickVertex); | ||
| } | ||
|
|
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| return Result::Activated; | ||
| } | ||
| catch (std::bad_cast&) | ||
| { | ||
| } | ||
|
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| return Result::Ignored; // not handled | ||
| } | ||
|
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| MouseTool::Result MeasurementTool::onMouseMove(Event& ev) | ||
| { | ||
| try | ||
| { | ||
| // We only operate on XY view events, so attempt to cast | ||
| XYMouseToolEvent& xyEvent = dynamic_cast<XYMouseToolEvent&>(ev); | ||
|
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| Vector3 endPos = xyEvent.getWorldPos(); | ||
| xyEvent.getView().snapToGrid(endPos); | ||
|
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| assert(!_points.empty()); | ||
|
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| _points[_points.size() - 1].vertex = endPos; | ||
| _points.setColour(Colour4b(0, 0, 0, 0)); | ||
|
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| _lines[_lines.size() -1] = _points[_points.size() - 1]; | ||
| } | ||
| catch (std::bad_cast&) | ||
| { | ||
| return Result::Ignored; | ||
| } | ||
|
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| return Result::Continued; | ||
| } | ||
|
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| MouseTool::Result MeasurementTool::onMouseUp(Event& ev) | ||
| { | ||
| try | ||
| { | ||
| // We only operate on XY view events, so attempt to cast | ||
| dynamic_cast<XYMouseToolEvent&>(ev); | ||
|
|
||
| // We continue until the user hits ESC | ||
| return Result::Continued; | ||
| } | ||
| catch (std::bad_cast&) | ||
| { | ||
| return Result::Ignored; | ||
| } | ||
| } | ||
|
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| MeasurementTool::Result MeasurementTool::onCancel(IInteractiveView& view) | ||
| { | ||
| _points.clear(); | ||
| _lines.clear(); | ||
|
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| return Result::Finished; | ||
| } | ||
|
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| void MeasurementTool::onMouseCaptureLost(IInteractiveView& view) | ||
| { | ||
| onCancel(view); | ||
| } | ||
|
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| unsigned int MeasurementTool::getPointerMode() | ||
| { | ||
| return PointerMode::Normal; | ||
| } | ||
|
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| unsigned int MeasurementTool::getRefreshMode() | ||
| { | ||
| return RefreshMode::Force | RefreshMode::ActiveView; | ||
| } | ||
|
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| void MeasurementTool::ensureShaders(RenderSystem& renderSystem) | ||
| { | ||
| if (!_wireShader) | ||
| { | ||
| Vector3 colour = ColourSchemes().getColour("drag_selection"); | ||
|
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| _colour.x() = colour.x(); | ||
| _colour.y() = colour.y(); | ||
| _colour.z() = colour.z(); | ||
| _colour.w() = 1; | ||
|
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| _wireShader = renderSystem.capture((boost::format("<%f %f %f>") % _colour[0] % _colour[1] % _colour[2]).str()); | ||
| } | ||
|
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| if (!_pointShader) | ||
| { | ||
| _pointShader = renderSystem.capture("$POINT"); | ||
| } | ||
| } | ||
|
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| void MeasurementTool::render(RenderSystem& renderSystem, RenderableCollector& collector, const VolumeTest& volume) | ||
| { | ||
| ensureShaders(renderSystem); | ||
|
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| // Render lines | ||
| collector.SetState(_wireShader, RenderableCollector::eWireframeOnly); | ||
| collector.addRenderable(_lines, Matrix4::getIdentity()); | ||
|
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| // Render points | ||
| collector.SetState(_pointShader, RenderableCollector::eWireframeOnly); | ||
| collector.addRenderable(_points, Matrix4::getIdentity()); | ||
|
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| // Render distance string | ||
| for (std::size_t i = 1; i < _points.size(); ++i) | ||
| { | ||
| const Vector3& a = _points[i-1].vertex; | ||
| const Vector3& b = _points[i].vertex; | ||
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| glColor4dv(_colour); | ||
| glRasterPos3dv((a+b)*0.5); | ||
| GlobalOpenGL().drawString(string::to_string((a-b).getLength())); | ||
| } | ||
| } | ||
|
|
||
| } // namespace |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| #pragma once | ||
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| #include "imousetool.h" | ||
| #include "iorthoview.h" | ||
| #include "math/Vector3.h" | ||
| #include "render.h" | ||
| #include "render/Colour4.h" | ||
|
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| namespace ui | ||
| { | ||
|
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| /** | ||
| * This tool can be used to measure distances. | ||
| * It is working on the orthoviews only. | ||
| */ | ||
| class MeasurementTool : | ||
| public MouseTool | ||
| { | ||
| private: | ||
| RenderablePointVector _points; | ||
| RenderablePointVector _lines; | ||
|
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| ShaderPtr _pointShader; | ||
| ShaderPtr _wireShader; | ||
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| Colour4 _colour; | ||
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| public: | ||
| MeasurementTool(); | ||
|
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| const std::string& getName() override; | ||
| const std::string& getDisplayName() override; | ||
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| Result onMouseDown(Event& ev) override; | ||
| Result onMouseMove(Event& ev) override; | ||
| Result onMouseUp(Event& ev) override; | ||
|
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| unsigned int getPointerMode() override; | ||
| unsigned int getRefreshMode() override; | ||
| Result onCancel(IInteractiveView& view) override; | ||
| void onMouseCaptureLost(IInteractiveView& view) override; | ||
|
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| void render(RenderSystem& renderSystem, RenderableCollector& collector, const VolumeTest& volume) override; | ||
|
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| private: | ||
| void ensureShaders(RenderSystem& renderSystem); | ||
| }; | ||
|
|
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| } // namespace |
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