/
ManipulateMouseTool.cpp
250 lines (192 loc) · 6.94 KB
/
ManipulateMouseTool.cpp
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#include "ManipulateMouseTool.h"
#include <wx/utils.h>
#include "i18n.h"
#include "iundo.h"
#include "iscenegraph.h"
#include "registry/registry.h"
#include "selection/Device.h"
#include "Rectangle.h"
#include "selection/Pivot2World.h"
#include "selection/SelectionVolume.h"
#include <fmt/format.h>
#include "string/split.h"
namespace ui
{
namespace
{
const char* const RKEY_SELECT_EPSILON = "user/ui/selectionEpsilon";
}
ManipulateMouseTool::ManipulateMouseTool() :
_selectEpsilon(registry::getValue<float>(RKEY_SELECT_EPSILON)),
_undoBegun(false)
{}
ManipulateMouseTool::Result ManipulateMouseTool::onMouseDown(Event& ev)
{
auto view = render::View(ev.getInteractiveView().getVolumeTest());
Vector2 epsilon(_selectEpsilon / ev.getInteractiveView().getDeviceWidth(),
_selectEpsilon / ev.getInteractiveView().getDeviceHeight());
if (selectManipulator(view, ev.getDevicePosition(), epsilon))
{
return Result::Activated;
}
return Result::Ignored; // not handled
}
ManipulateMouseTool::Result ManipulateMouseTool::onMouseMove(Event& ev)
{
// Get the view afresh each time, chasemouse might have changed the view since onMouseDown
auto view = render::View(ev.getInteractiveView().getVolumeTest());
handleMouseMove(view, ev.getDevicePosition());
return Result::Continued;
}
ManipulateMouseTool::Result ManipulateMouseTool::onMouseUp(Event& ev)
{
// Notify the selectionsystem about the finished operation
endMove();
return Result::Finished;
}
void ManipulateMouseTool::onMouseCaptureLost(IInteractiveView& view)
{
cancelMove();
}
ManipulateMouseTool::Result ManipulateMouseTool::onCancel(IInteractiveView&)
{
cancelMove();
return Result::Finished;
}
unsigned int ManipulateMouseTool::getPointerMode()
{
return PointerMode::Capture;
}
unsigned int ManipulateMouseTool::getRefreshMode()
{
return RefreshMode::Force | RefreshMode::AllViews; // update cam view too
}
bool ManipulateMouseTool::selectManipulator(const render::View& view, const Vector2& devicePoint, const Vector2& deviceEpsilon)
{
auto activeManipulator = getActiveManipulator();
assert(activeManipulator);
// Check if the scene selection is ready for manipulation
if (!manipulationIsPossible())
{
return false;
}
// Unselect all components to be sure
activeManipulator->setSelected(false);
// Perform a selection test on this manipulator's components
render::View scissored(view);
ConstructSelectionTest(scissored, selection::Rectangle::ConstructFromPoint(devicePoint, deviceEpsilon));
auto pivot2World = getPivot2World();
SelectionVolume test(scissored);
activeManipulator->testSelect(test, pivot2World);
// Save the pivot2world matrix
_pivot2worldStart = pivot2World;
// We can start the manipulation if we successfully selected a component
if (!activeManipulator->isSelected())
{
return false;
}
onManipulationStart();
activeManipulator->getActiveComponent()->beginTransformation(_pivot2worldStart, view, devicePoint);
_deviceStart = devicePoint;
_undoBegun = false;
return true;
}
void ManipulateMouseTool::handleMouseMove(const render::View& view, const Vector2& devicePoint)
{
auto activeManipulator = getActiveManipulator();
assert(activeManipulator);
// Check if the active manipulator is selected in the first place
if (!activeManipulator->isSelected()) return;
// Initalise the undo system, if not yet done
if (!_undoBegun)
{
_undoBegun = true;
GlobalUndoSystem().start();
}
#ifdef _DEBUG
Matrix4 device2pivot = constructDevice2Pivot(_pivot2worldStart, view);
Matrix4 pivot2device = constructPivot2Device(_pivot2worldStart, view);
Vector4 pivotDev = pivot2device.transform(Vector4(0,0,0,1));
_debugText = fmt::format("\nPivotDevice x,y,z,w = ({0:5.3f} {1:5.3f} {2:5.3f} {3:5.3f})", pivotDev.x(), pivotDev.y(), pivotDev.z(), pivotDev.w());
_debugText += fmt::format("\nStart x,y = ({0:5.3f} {1:5.3f})", _deviceStart.x(), _deviceStart.y());
_debugText += fmt::format("\nCurrent x,y = ({0:5.3f} {1:5.3f})", devicePoint.x(), devicePoint.y());
double pivotDistanceDeviceSpace = pivot2device.tz();
Vector3 worldPosH = device2pivot.transform(Vector4(devicePoint.x(), devicePoint.y(), pivotDistanceDeviceSpace, 1)).getProjected();
_debugText += fmt::format("\nDev2Pivot x,y,z = ({0:5.3f} {1:5.3f} {2:5.3f})", worldPosH.x(), worldPosH.y(), worldPosH.z());
worldPosH = device2pivot.transform(pivotDev).getProjected();
_debugText += fmt::format("\nTest reversal x,y,z = ({0:5.3f} {1:5.3f} {2:5.3f})", worldPosH.x(), worldPosH.y(), worldPosH.z());
#endif
// Query keyboard modifier state and pass them as flags
int constraintFlag = selection::IManipulator::Component::Constraint::Unconstrained;
constraintFlag |= wxGetKeyState(WXK_SHIFT) ? selection::IManipulator::Component::Constraint::Type1 : 0;
constraintFlag |= wxGetKeyState(WXK_ALT) ? selection::IManipulator::Component::Constraint::Type3 : 0;
if (gridIsEnabled())
{
// Grid constraint is ON if available, constraing is off when CTRL is held
constraintFlag |= wxGetKeyState(WXK_CONTROL) ? 0 : selection::IManipulator::Component::Constraint::Grid;
}
// Get the component of the currently active manipulator (done by selection test)
// and call the transform method
activeManipulator->getActiveComponent()->transform(_pivot2worldStart, view, devicePoint, constraintFlag);
onManipulationChanged();
}
void ManipulateMouseTool::endMove()
{
onManipulationFinished();
auto activeManipulator = getActiveManipulator();
assert(activeManipulator);
// Update the views
SceneChangeNotify();
// If we started an undoable operation, end it now and tell the console what happened
if (_undoBegun)
{
std::ostringstream command;
if (activeManipulator->getType() == selection::IManipulator::Translate)
{
command << "translateTool";
}
else if (activeManipulator->getType() == selection::IManipulator::Rotate)
{
command << "rotateTool";
}
else if (activeManipulator->getType() == selection::IManipulator::Drag)
{
command << "dragTool";
}
else if (activeManipulator->getType() == selection::IManipulator::ModelScale)
{
command << "modelScaleTool";
}
_undoBegun = false;
// Finish the undo move
GlobalUndoSystem().finish(command.str());
activeManipulator->setSelected(false);
}
}
void ManipulateMouseTool::cancelMove()
{
auto activeManipulator = getActiveManipulator();
assert(activeManipulator);
onManipulationCancelled();
if (_undoBegun)
{
// Cancel the undo operation, if one has been begun
GlobalUndoSystem().cancel();
_undoBegun = false;
}
// Update the views
SceneChangeNotify();
}
void ManipulateMouseTool::renderOverlay()
{
#ifdef _DEBUG
std::vector<std::string> lines;
string::split(lines, _debugText, "\n");
for (std::size_t i = 0; i < lines.size(); ++i)
{
glRasterPos3f(1.0f, 15.0f + (12.0f*lines.size() - 1) - 12.0f*i, 0.0f);
GlobalOpenGL().drawString(lines[i]);
}
#endif
}
}