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Multiply x and y mouse event coords by device pixel ratio

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This fixes issues with retina displays, where there are more opengl pixels than logical device pixels
This commit is contained in:
Simon Detheridge
2015-02-28 22:18:07 +00:00
parent c01f444d52
commit 1762d8251f
1 changed files with 6 additions and 6 deletions
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12
Source/Fractorium/GLWidget.cpp
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@ -452,7 +452,7 @@ void GLWidget::keyReleaseEvent(QKeyEvent* e)
template <typename T>
void GLEmberController<T>::MousePress(QMouseEvent* e)
{
v3T mouseFlipped(e->x(), m_Viewport[3] - e->y(), 0);//Must flip y because in OpenGL, 0,0 is bottom left, but in windows, it's top left.
v3T mouseFlipped(e->x() * m_GL->devicePixelRatio(), m_Viewport[3] - e->y() * m_GL->devicePixelRatio(), 0);//Must flip y because in OpenGL, 0,0 is bottom left, but in windows, it's top left.
Ember<T>* ember = m_FractoriumEmberController->CurrentEmber();
RendererBase* renderer = m_FractoriumEmberController->Renderer();
@ -460,7 +460,7 @@ void GLEmberController<T>::MousePress(QMouseEvent* e)
if (!renderer)
return;
m_MouseDownPos = glm::ivec2(e->x(), e->y());//Capture the raster coordinates of where the mouse was clicked.
m_MouseDownPos = glm::ivec2(e->x() * m_GL->devicePixelRatio(), e->y() * m_GL->devicePixelRatio());//Capture the raster coordinates of where the mouse was clicked.
m_MouseWorldPos = WindowToWorld(mouseFlipped, false);//Capture the world cartesian coordinates of where the mouse is.
m_BoundsDown.w = renderer->LowerLeftX(false);//Need to capture these because they'll be changing if scaling.
m_BoundsDown.x = renderer->LowerLeftY(false);
@ -552,7 +552,7 @@ void GLWidget::mousePressEvent(QMouseEvent* e)
template <typename T>
void GLEmberController<T>::MouseRelease(QMouseEvent* e)
{
v3T mouseFlipped(e->x(), m_Viewport[3] - e->y(), 0);//Must flip y because in OpenGL, 0,0 is bottom left, but in windows, it's top left.
v3T mouseFlipped(e->x() * m_GL->devicePixelRatio(), m_Viewport[3] - e->y() * m_GL->devicePixelRatio(), 0);//Must flip y because in OpenGL, 0,0 is bottom left, but in windows, it's top left.
m_MouseWorldPos = WindowToWorld(mouseFlipped, false);
@ -591,8 +591,8 @@ template <typename T>
void GLEmberController<T>::MouseMove(QMouseEvent* e)
{
bool draw = true;
glm::ivec2 mouse(e->x(), e->y());
v3T mouseFlipped(e->x(), m_Viewport[3] - e->y(), 0);//Must flip y because in OpenGL, 0,0 is bottom left, but in windows, it's top left.
glm::ivec2 mouse(e->x() * m_GL->devicePixelRatio(), e->y() * m_GL->devicePixelRatio());
v3T mouseFlipped(e->x() * m_GL->devicePixelRatio(), m_Viewport[3] - e->y() * m_GL->devicePixelRatio(), 0);//Must flip y because in OpenGL, 0,0 is bottom left, but in windows, it's top left.
Ember<T>* ember = m_FractoriumEmberController->CurrentEmber();
//First check to see if the mouse actually moved.
@ -605,7 +605,7 @@ void GLEmberController<T>::MouseMove(QMouseEvent* e)
//Update status bar on main window, regardless of whether anything is being dragged.
if (m_Fractorium->m_Controller->RenderTimerRunning())
m_Fractorium->SetCoordinateStatus(e->x(), e->y(), m_MouseWorldPos.x, m_MouseWorldPos.y);
m_Fractorium->SetCoordinateStatus(e->x() * m_GL->devicePixelRatio(), e->y() * m_GL->devicePixelRatio(), m_MouseWorldPos.x, m_MouseWorldPos.y);
if (m_SelectedXform && m_DragState == DragDragging)//Dragging and affine.
{