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rcore_desktop_glfw.c : platform offset and scaling in SetMousePosition()

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SuperUserNameMan 2024-07-24 12:03:57 +02:00 committed by GitHub
parent 9228338b39
commit d4ad622d3f
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1 changed files with 20 additions and 4 deletions
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src/platforms/rcore_desktop_glfw.c
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@ -1169,14 +1169,30 @@ void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor)
TRACELOG(LOG_WARNING, "GamepadSetVibration() not available on target platform");
}
// Set mouse position XY
// Set the system mouse position XY in `CORE.Window.screen` coordinates
// NOTE : user's `SetMouseOffset()` and `SetMouseScale()` are ignored.
void SetMousePosition(int x, int y)
{
CORE.Input.Mouse.currentPosition = (Vector2){ (float)x, (float)y };
// If the requested mouse coordinates are outside the screen, we clip them :
x = (x < 0) ? 0 : ((x < CORE.Window.screen.width) ? x : (CORE.Window.screen.width - 1));
y = (y < 0) ? 0 : ((y < CORE.Window.screen.height) ? y : (CORE.Window.screen.height - 1));
// We rescale and offset the requested coordinates according to the platform's setup,
// so it also works when `FLAG_WINDOW_HIGHDPI` or `FLAG_RESCALE_CONTENT` are enabled.
// User's mouse offset and rescaling must be ignored, because they could put the mouse cursor outside the window.
float mouseX = (float)x/CORE.Input.Mouse.platformScale.x - CORE.Input.Mouse.platformOffset.x;
float mouseY = (float)y/CORE.Input.Mouse.platformScale.y - CORE.Input.Mouse.platformOffset.y;
// Update the metrics :
CORE.Input.Mouse.currentPosition = (Vector2){ mouseX, mouseY };
CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
// NOTE: emscripten not implemented
glfwSetCursorPos(platform.handle, CORE.Input.Mouse.currentPosition.x, CORE.Input.Mouse.currentPosition.y);
// And we're done :
glfwSetCursorPos(platform.handle, mouseX, mouseY);
}
// Set mouse cursor