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63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
#include "doctest.h"
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#include <lvgl/insets_math.h>
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static constexpr DisplayShape RECTANGLE = { .shape = DISPLAY_SHAPE_RECTANGLE, .corner_radius = 0 };
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static constexpr DisplayShape CIRCLE = { .shape = DISPLAY_SHAPE_CIRCLE, .corner_radius = 0 };
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static constexpr DisplayShape ROUNDED_40 = { .shape = DISPLAY_SHAPE_ROUNDED, .corner_radius = 40 };
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TEST_CASE("a rectangle has no insets") {
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const auto insets = lvgl_insets_calculate(RECTANGLE, 320, 240);
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CHECK_EQ(insets.top, 0);
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CHECK_EQ(insets.bottom, 0);
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CHECK_EQ(insets.left, 0);
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CHECK_EQ(insets.right, 0);
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CHECK_EQ(lvgl_insets_calculate_row(RECTANGLE, 320, 240, 0), 0);
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}
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TEST_CASE("a circle's insets fit the inscribed square") {
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const auto insets = lvgl_insets_calculate(CIRCLE, 240, 240);
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// 120 * (1 - 1/sqrt(2)) = 35.1
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CHECK_EQ(insets.top, 36);
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CHECK_EQ(insets.bottom, 36);
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CHECK_EQ(insets.left, 36);
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CHECK_EQ(insets.right, 36);
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}
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TEST_CASE("a circle on a wider panel is centered horizontally") {
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const auto insets = lvgl_insets_calculate(CIRCLE, 280, 240);
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CHECK_EQ(insets.top, 36);
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CHECK_EQ(insets.left, 56);
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CHECK_EQ(insets.right, 56);
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}
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TEST_CASE("a circle's row inset follows its edge") {
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CHECK_EQ(lvgl_insets_calculate_row(CIRCLE, 240, 240, 120), 0);
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CHECK_EQ(lvgl_insets_calculate_row(CIRCLE, 240, 240, 0), 120);
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// Halfway between the center and the top: 120 - sqrt(120^2 - 60^2) = 16.1
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CHECK_EQ(lvgl_insets_calculate_row(CIRCLE, 240, 240, 60), 17);
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}
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TEST_CASE("a rounded rectangle has insets at the top and bottom only") {
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const auto insets = lvgl_insets_calculate(ROUNDED_40, 172, 320);
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// 40 * (1 - 1/sqrt(2)) = 11.7
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CHECK_EQ(insets.top, 12);
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CHECK_EQ(insets.bottom, 12);
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CHECK_EQ(insets.left, 0);
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CHECK_EQ(insets.right, 0);
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}
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TEST_CASE("a rounded rectangle's row inset is only in the corners") {
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CHECK_EQ(lvgl_insets_calculate_row(ROUNDED_40, 172, 320, 0), 40);
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CHECK_EQ(lvgl_insets_calculate_row(ROUNDED_40, 172, 320, 319), 40);
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CHECK_EQ(lvgl_insets_calculate_row(ROUNDED_40, 172, 320, 40), 0);
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CHECK_EQ(lvgl_insets_calculate_row(ROUNDED_40, 172, 320, 160), 0);
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}
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TEST_CASE("a corner radius larger than half the panel is limited") {
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const DisplayShape huge = { .shape = DISPLAY_SHAPE_ROUNDED, .corner_radius = 500 };
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const auto insets = lvgl_insets_calculate(huge, 172, 320);
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// Limited to 86: 86 * (1 - 1/sqrt(2)) = 25.2
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CHECK_EQ(insets.top, 26);
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}
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