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#include "Cursor.h"
#include "Runtime/GfxDevice/GfxDevice.h"
#include "Runtime/Graphics/RenderTexture.h"
#include "Runtime/Graphics/RenderBufferManager.h"
#include "Runtime/Camera/ImageFilters.h"
#include "Runtime/Graphics/ScreenManager.h"
#include "Runtime/Graphics/Image.h"
#include "Runtime/Camera/RenderManager.h"
#include "Runtime/Camera/CameraUtil.h"
#include "Runtime/Camera/RenderLayers/GUITexture.h"
#include "Runtime/Input/InputManager.h"
#include "Runtime/Misc/PlayerSettings.h"
namespace Cursors
{
void RenderSoftwareCursor ()
{
Texture2D* softCursor = GetSoftwareCursor();
if (softCursor && GetScreenManager().GetShowCursor())
{
DeviceMVPMatricesState preserveMVP;
SetupPixelCorrectCoordinates();
Vector2f pos = GetInputManager().GetMousePosition();
Vector2f hotSpotOffset = GetCursorHotspot();
pos.x -= hotSpotOffset.x;
pos.y += hotSpotOffset.y;
// the color is set to 0.5f because the gui-texture shader multiplies the vertex color by 2 for some reason
// pos is floored to match the behaviour of the hardware cursors
DrawGUITexture (Rectf ((int)pos.x, (int)pos.y, softCursor->GetGLWidth(), -softCursor->GetGLHeight()), softCursor, ColorRGBAf(0.5f, 0.5f, 0.5f, 0.5f));
}
}
#if !PLATFORM_SUPPORTS_HARDWARE_CURSORS
typedef UnityCursor<int> SoftCursor;
typedef CursorManager<SoftCursor> SoftCursorManager;
template<> SoftCursorManager* SoftCursorManager::s_CursorManager = NULL;
static SoftCursor GenerateCursor (Texture2D* texture, Vector2f hotSpot)
{
// if this is null you are doing it wrong
assert(texture);
SoftCursor c;
c.sCursor = texture;
c.hotspot = hotSpot;
return c;
}
void SetCursor (Texture2D* texture, Vector2f hotSpot, CursorMode forceHardware)
{
SoftCursorManager& manager = SoftCursorManager::Instance();
if (!texture)
{
manager.m_CurrentCursor = manager.m_DefaultCursor;
return;
}
// try and find the cursor in the cache
SoftCursorManager::CursorCache::iterator found = manager.m_CursorCache.find (texture->GetTextureID());
SoftCursor cursorToSet;
bool shouldGenerateCursor = true;
if (manager.m_CursorCache.end() != found)
{
// see if old hotspot
// is the same as the one requested now...
// if it's not then delete the old cursor and recreate it!
cursorToSet = found->second;
if (!CompareApproximately (hotSpot.x, cursorToSet.hotspot.x)
|| !CompareApproximately (hotSpot.y, cursorToSet.hotspot.y))
{
manager.m_CursorCache.erase(found);
}
else
{
shouldGenerateCursor = false;
}
}
if (shouldGenerateCursor)
{
cursorToSet = GenerateCursor (texture, hotSpot);
manager.m_CursorCache[texture->GetTextureID()] = cursorToSet;
}
manager.m_CurrentCursor = cursorToSet;
}
Texture2D* GetSoftwareCursor()
{
return SoftCursorManager::Instance().m_CurrentCursor.sCursor;
}
Vector2f GetCursorHotspot()
{
return SoftCursorManager::Instance().m_CurrentCursor.hotspot;
}
void InitializeCursors(Texture2D* defaultCursorTexture, Vector2f defaultCursorHotSpot)
{
SoftCursorManager& manager = SoftCursorManager::Instance ();
if (defaultCursorTexture)
{
manager.m_DefaultCursor = GenerateCursor (defaultCursorTexture, defaultCursorHotSpot);
manager.m_CurrentCursor = manager.m_DefaultCursor;
manager.m_UsingBuiltinDefaultCursor = true;
}
}
void CleanupCursors()
{
SoftCursorManager::Instance().Cleanup ();
}
// needed for windows linkage with hardware cursors disabled
#if UNITY_WIN
void ResetCursor ()
{}
bool HandleMouseCursor (UINT message, LPARAM lParam)
{
return false;
}
HCURSOR GetHardwareCursor ()
{
return NULL;
}
#endif
// needed for osx linkage with hardware cursors disabled
#if UNITY_OSX
void ResetCursor ()
{}
NSCursor* GetCurrentCursor ()
{
return NULL;
}
#endif
#endif //!PLATFORM_SUPPORTS_HARDWARE_CURSORS
}; //namespace
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