mirrors/SFML
1
0
Fork 0
mirror of https://github.com/SFML/SFML.git synced 2024-12-01 15:51:04 +08:00
Code Issues Packages Projects Releases Wiki Activity

RenderTarget::convertCoords now takes a Vector2i argument

Browse Source
This commit is contained in:
Laurent Gomila 2012-03-27 17:17:59 +02:00
parent 74f9388f31
commit 859074b3cc
2 changed files with 10 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
include/SFML/Graphics/RenderTarget.hpp
View File

@ -144,13 +144,12 @@ public :
/// This version uses the current view of the render target.
/// See the other overload to specify a custom view.
///
/// \param x X coordinate of the point to convert, relative to the render target
/// \param y Y coordinate of the point to convert, relative to the render target
/// \param point Point to convert, relative to the render target
///
/// \return The converted point, in "world" units
///
////////////////////////////////////////////////////////////
Vector2f convertCoords(unsigned int x, unsigned int y) const;
Vector2f convertCoords(const Vector2i& point) const;
////////////////////////////////////////////////////////////
/// \brief Convert a point from target coordinates to view coordinates
@ -169,14 +168,13 @@ public :
/// overload of the function to use the current view of the render
/// target.
///
/// \param x X coordinate of the point to convert, relative to the render target
/// \param y Y coordinate of the point to convert, relative to the render target
/// \param point Point to convert, relative to the render target
/// \param view The view to use for converting the point
///
/// \return The converted point, in "world" units
///
////////////////////////////////////////////////////////////
Vector2f convertCoords(unsigned int x, unsigned int y, const View& view) const;
Vector2f convertCoords(const Vector2i& point, const View& view) const;
////////////////////////////////////////////////////////////
/// \brief Draw a drawable object to the render-target

10
src/SFML/Graphics/RenderTarget.cpp
View File

@ -100,20 +100,20 @@ IntRect RenderTarget::getViewport(const View& view) const
////////////////////////////////////////////////////////////
Vector2f RenderTarget::convertCoords(unsigned int x, unsigned int y) const
Vector2f RenderTarget::convertCoords(const Vector2i& point) const
{
return convertCoords(x, y, getView());
return convertCoords(point, getView());
}
////////////////////////////////////////////////////////////
Vector2f RenderTarget::convertCoords(unsigned int x, unsigned int y, const View& view) const
Vector2f RenderTarget::convertCoords(const Vector2i& point, const View& view) const
{
// First, convert from viewport coordinates to homogeneous coordinates
Vector2f coords;
IntRect viewport = getViewport(view);
coords.x = -1.f + 2.f * (static_cast<int>(x) - viewport.left) / viewport.width;
coords.y = 1.f - 2.f * (static_cast<int>(y) - viewport.top) / viewport.height;
coords.x = -1.f + 2.f * (point.x - viewport.left) / viewport.width;
coords.y = 1.f - 2.f * (point.y - viewport.top) / viewport.height;
// Then transform by the inverse of the view matrix
return view.getInverseTransform().transformPoint(coords);