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#pragma once
#include <optional>
namespace cru
{
namespace ui
{
enum class MeasureMode
{
Exactly,
Content,
Stretch
};
struct MeasureLength final
{
explicit MeasureLength(const float length = 0.0, const MeasureMode mode = MeasureMode::Exactly)
: length(length), mode(mode)
{
}
bool Validate() const
{
return !(mode == MeasureMode::Exactly && length < 0.0);
}
float length;
MeasureMode mode;
};
struct MeasureSize final
{
MeasureLength width;
MeasureLength height;
bool Validate() const
{
return width.Validate() && height.Validate();
}
};
struct OptionalSize final
{
OptionalSize()
: width(std::nullopt), height(std::nullopt)
{
}
OptionalSize(const std::optional<float> width, const std::optional<float> height)
: width(width), height(height)
{
}
OptionalSize(const OptionalSize& other) = default;
OptionalSize(OptionalSize&& other) = default;
OptionalSize& operator = (const OptionalSize& other) = default;
OptionalSize& operator = (OptionalSize&& other) = default;
~OptionalSize() = default;
bool Validate() const
{
if (width.has_value() && width.value() < 0.0)
return false;
if (height.has_value() && height.value() < 0.0)
return false;
return true;
}
std::optional<float> width;
std::optional<float> height;
};
struct BasicLayoutParams
{
BasicLayoutParams() = default;
BasicLayoutParams(const BasicLayoutParams&) = default;
BasicLayoutParams(BasicLayoutParams&&) = default;
BasicLayoutParams& operator = (const BasicLayoutParams&) = default;
BasicLayoutParams& operator = (BasicLayoutParams&&) = default;
virtual ~BasicLayoutParams() = default;
bool Validate() const
{
return size.Validate() && max_size.Validate() && min_size.Validate();
}
MeasureSize size;
OptionalSize min_size;
OptionalSize max_size;
};
}
}
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