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Associated image rectangle now in ref-wrapper
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@ckormanyos
ckormanyos committed Aug 31, 2024
1 parent f42c79f commit e4a2c88
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Showing 2 changed files with 26 additions and 20 deletions.
4 changes: 2 additions & 2 deletions MandelbrotDiscovery/mandelbrot_discovery.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ using local_window_type = mandelbrot_discovery<static_cast<int>(INT16_C(800)),
using point_type = typename local_window_type::point_type;
using rectangle_type = typename local_window_type::rectangle_type;

auto rectangle() -> rectangle_type*
auto rectangle() -> rectangle_type&
{
static rectangle_type my_rect
{
Expand All @@ -63,7 +63,7 @@ auto rectangle() -> rectangle_type*

static_cast<void>(result_pixel_assoc_is_ok);

return &my_rect;
return my_rect;
}

auto WINAPI WinMain(_In_ ::HINSTANCE h_wnd, _In_opt_ ::HINSTANCE, _In_ LPSTR, _In_ int) -> int
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42 changes: 24 additions & 18 deletions MandelbrotDiscovery/mandelbrot_discovery.h
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
#include <chrono>
#include <cstdint>
#include <cstring>
#include <functional>
#include <iomanip>
#include <limits>
#include <mutex>
Expand Down Expand Up @@ -62,8 +63,9 @@
static constexpr int window_height = static_cast<int>(client_height + 42); // Total window height

public:
using point_type = typename geometry::point_type<my_coord_pnt_numeric_type>;
using rectangle_type = geometry::rectangle_type<point_type>;
using rectangle_type = geometry::rectangle_type<typename geometry::point_type<my_coord_pnt_numeric_type>>;
using point_type = typename rectangle_type::point_type;
using rectangle_ref_type = std::reference_wrapper<rectangle_type>;

mandelbrot_discovery() = default;

Expand Down Expand Up @@ -251,17 +253,17 @@
return static_cast<int>(INT8_C(0));
}

static auto set_rectangle(rectangle_type* p_rectangle) noexcept -> void
static auto set_rectangle(rectangle_type& ref_to_rectangle) noexcept -> void
{
my_ptr_to_rectangle = p_rectangle;
my_ref_to_rectangle = ref_to_rectangle;
}

private:
::HWND my_handle_to_window { nullptr };
::HINSTANCE my_handle_to_instance { nullptr };

static point_type my_rectangle_center;
static rectangle_type* my_ptr_to_rectangle;
static rectangle_ref_type my_ref_to_rectangle;

static std::thread my_thread;
static std::atomic<bool> my_thread_wants_exit;
Expand Down Expand Up @@ -314,10 +316,10 @@
const local_mandelbrot_config_type
mandelbrot_config_object
(
my_ptr_to_rectangle->my_center.my_x - my_ptr_to_rectangle->my_dx_half,
my_ptr_to_rectangle->my_center.my_x + my_ptr_to_rectangle->my_dx_half,
my_ptr_to_rectangle->my_center.my_y - my_ptr_to_rectangle->my_dy_half,
my_ptr_to_rectangle->my_center.my_y + my_ptr_to_rectangle->my_dy_half,
my_ref_to_rectangle.get().my_center.my_x - my_ref_to_rectangle.get().my_dx_half,
my_ref_to_rectangle.get().my_center.my_x + my_ref_to_rectangle.get().my_dx_half,
my_ref_to_rectangle.get().my_center.my_y - my_ref_to_rectangle.get().my_dy_half,
my_ref_to_rectangle.get().my_center.my_y + my_ref_to_rectangle.get().my_dy_half,
my_mandelbrot_iterations
);

Expand Down Expand Up @@ -448,13 +450,13 @@
static_cast<int>(static_cast<::WORD>(static_cast<::DWORD>(l_param) >> static_cast<unsigned>(UINT8_C(16))))
};

auto result_is_ok = my_ptr_to_rectangle->pixel_to_point(pixel_x, pixel_y, my_rectangle_center);
auto result_is_ok = my_ref_to_rectangle.get().pixel_to_point(pixel_x, pixel_y, my_rectangle_center);

if(result_is_ok)
{
result_is_ok = (write_number("x_val : ", my_rectangle_center.my_x) && result_is_ok);
result_is_ok = (write_number("y_val : ", my_rectangle_center.my_y) && result_is_ok);
result_is_ok = (write_number("dx_half: ", my_ptr_to_rectangle->dx_half(), 3) && result_is_ok);
result_is_ok = (write_number("dx_half: ", my_ref_to_rectangle.get().dx_half(), 3) && result_is_ok);
result_is_ok = (write_string("\n") && result_is_ok);
}

Expand Down Expand Up @@ -556,11 +558,11 @@
else if(str_cmd == "calc")
{
// Rescale and re-center the rectangle.
my_ptr_to_rectangle->operator/=(10);
my_ref_to_rectangle.get() /= 10;

my_mandelbrot_zoom_factor *= 10;

my_ptr_to_rectangle->recenter(my_rectangle_center);
my_ref_to_rectangle.get().recenter(my_rectangle_center);

// Set the flag to redraw the client window with the new JPEG.
// The redrawing will occur below.
Expand All @@ -569,7 +571,7 @@
else if(str_cmd == "out")
{
// Rescale and re-center the rectangle.
my_ptr_to_rectangle->operator*=(10);
my_ref_to_rectangle.get() *= 10;

my_mandelbrot_zoom_factor /= 10;

Expand Down Expand Up @@ -804,9 +806,13 @@
static rectangle_type
my_default_rect
{
point_type("-0.75", "0.00"),
local_value_type("1.35"),
local_value_type("1.35")
point_type
{
local_value_type { "-0.75" },
local_value_type { "+0.00" }
},
local_value_type { "+1.35" },
local_value_type { "+1.35" }
};

return my_default_rect;
Expand Down Expand Up @@ -915,7 +921,7 @@
const int IconId,
const int ScreenCoordinateX,
const int ScreenCoordinateY>
typename mandelbrot_discovery<WindowWidth, WindowHeight, MandelbrotCoordPntType, MandelbrotIterationType, WindowTitle, IconId, ScreenCoordinateX, ScreenCoordinateY>::rectangle_type* mandelbrot_discovery<WindowWidth, WindowHeight, MandelbrotCoordPntType, MandelbrotIterationType, WindowTitle, IconId, ScreenCoordinateX, ScreenCoordinateY>::my_ptr_to_rectangle { nullptr };
typename mandelbrot_discovery<WindowWidth, WindowHeight, MandelbrotCoordPntType, MandelbrotIterationType, WindowTitle, IconId, ScreenCoordinateX, ScreenCoordinateY>::rectangle_ref_type mandelbrot_discovery<WindowWidth, WindowHeight, MandelbrotCoordPntType, MandelbrotIterationType, WindowTitle, IconId, ScreenCoordinateX, ScreenCoordinateY>::my_ref_to_rectangle { default_rectangle() };

template<const int WindowWidth,
const int WindowHeight,
Expand Down

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