Andrea Blankenstijn
a19d2ea6bd
- mark as const every pointer that can be const.
- in implementation mark const args passed by value that are meant to be read-only.
- wrap in a lambda complex initializations of (const) values.
- argument passing:
- pass by value arguments of cheap-to-copy types or meant to be copied
anyway.
- pass by (const) reference args not meant to outlive called
function scope and not cheap-to-copy.
- pass (const) pointers to (const) args when null is a valid option
and pointed data aren't expected to outlive function scope.
- use string_view for non-owned strings (not meant to outlive function
scope).
- use span for collection types like vector and arrays.
- fancy pointers passing:
- pass by value if a reference will be held:
- pass by const reference if a reference _may_ be hell.
- when no references are meant to be held:
- dereference the pointer to pass the pointed data by reference
if null is not an option.
- pass the underlying raw pointer if null is an option.
… and random subtle changes and fixes here and there that I forgot to mention.
52 lines
2 KiB
C++
52 lines
2 KiB
C++
#ifndef BWIDGETS_INPUT_HPP
|
|
#define BWIDGETS_INPUT_HPP
|
|
|
|
#include <basic_widgets/core/type/concepts.hpp>
|
|
#include <basic_widgets/w/base/widget.hpp>
|
|
#include <basic_widgets/w/feat/font_handler.hpp>
|
|
#include <basic_widgets/w/feat/keyboard_handler.hpp>
|
|
#include <basic_widgets/w/feat/mouse_handler.hpp>
|
|
|
|
namespace bwidgets
|
|
{
|
|
|
|
template<typename T>
|
|
class Input : public virtual Widget,
|
|
public virtual FontHandler,
|
|
public virtual KeyboardHandler,
|
|
public virtual MouseHandler
|
|
{
|
|
protected:
|
|
using Widget::Widget;
|
|
|
|
public:
|
|
static const int default_border_width = 3;
|
|
inline static const Color default_color_bg = {200, 200, 200, SDL_ALPHA_OPAQUE};
|
|
inline static const Color default_color_bg_focused = {255, 255, 255,
|
|
SDL_ALPHA_OPAQUE};
|
|
static const int default_float_precision = 2;
|
|
static const int default_min_width = 1;
|
|
|
|
int border_width = default_border_width;
|
|
Color color_bg_default = default_color_bg;
|
|
Color color_bg_focused = default_color_bg_focused;
|
|
int float_precision = default_float_precision;
|
|
int input_min_width = default_min_width;
|
|
char input_width_unit = 'W';
|
|
T value {};
|
|
|
|
virtual void color_fg(Color c) = 0;
|
|
[[nodiscard]] virtual auto input_text() const -> std::string_view = 0;
|
|
virtual void input_text(std::string txt) = 0;
|
|
[[nodiscard]] virtual auto is_valid_input(std::string_view) const noexcept
|
|
-> bool = 0;
|
|
[[nodiscard]] virtual auto process_value(T x) const noexcept -> T = 0;
|
|
[[nodiscard]] virtual auto value_from_string(std::string_view s) const noexcept
|
|
-> T = 0;
|
|
[[nodiscard]] virtual auto value_to_string(T value) const noexcept
|
|
-> std::string = 0;
|
|
};
|
|
}
|
|
|
|
#endif
|