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libcamera: geometry: Add isNull() function to Rectangle class

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It's common for code to check if a rectangle is null. Add a helper function
to do so and test the function in test/geometry.cpp

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Jacopo Mondi 2020-07-01 10:21:17 +02:00
parent d405d1fd5e
commit dd0793ed1b
3 changed files with 21 additions and 0 deletions
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6
src/libcamera/geometry.cpp
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@ -385,6 +385,12 @@ bool operator==(const SizeRange &lhs, const SizeRange &rhs)
* \brief The distance between the top and bottom sides
*/
/**
* \fn bool Rectangle::isNull() const
* \brief Check if the rectangle is null
* \return True if both the width and height are 0, or false otherwise
*/
/**
* \brief Assemble and return a string describing the rectangle
* \return A string describing the Rectangle