oreodave/cw_tree
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Left and right fractions are now drawn at the top with counter

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This commit is contained in:
Aryadev Chavali
2024-07-27 01:35:43 +01:00
parent feabcf24a0
commit f1b878c991
1 changed files with 18 additions and 8 deletions
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26
src/main.cpp
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@@ -32,11 +32,19 @@
#define LINE_TOP (7 * HEIGHT / 16)
#define LINE_BOTTOM (9 * HEIGHT / 16)
void draw_fraction(Fraction f, word_t x, word_t y)
std::pair<std::string, int> get_fraction_drawable(Fraction f)
{
std::string s{to_string(f)};
// Centered at (x, y)
int width = MeasureText(s.c_str(), FONT_SIZE);
return std::make_pair(s, width);
}
void draw_fraction(Fraction f, word_t x, word_t y)
{
std::string s;
int width;
std::tie(s, width) = get_fraction_drawable(f);
// Centered at (x, y)
DrawText(s.c_str(), x - width / 2, y - FONT_SIZE, FONT_SIZE, WHITE);
}
@@ -100,8 +108,6 @@ struct State
{
word_t lower_x = clamp_to_width(bounds.leftmost.value.norm);
word_t upper_x = clamp_to_width(bounds.rightmost.value.norm);
draw_fraction(bounds.leftmost.value, lower_x, 3 * HEIGHT / 8);
draw_fraction(bounds.rightmost.value, upper_x, 3 * HEIGHT / 8);
DrawLine(lower_x, LINE_TOP, lower_x, LINE_BOTTOM, WHITE);
DrawLine(upper_x, LINE_TOP, upper_x, LINE_BOTTOM, WHITE);
}
@@ -144,6 +150,7 @@ int main(void)
std::stringstream format_stream;
std::string format_str;
word_t format_str_width = 0;
Fraction previous_leftmost, previous_rightmost;
InitWindow(WIDTH, HEIGHT, "Calkin-Wilf Tree");
while (!WindowShouldClose())
@@ -156,8 +163,11 @@ int main(void)
if (prev_count != count)
{
prev_count = count;
format_stream << "Count=" << count << "\n\n";
format_stream << "Iterations=" << (count - 1) / 2;
format_stream << "Count=" << count << "\n\n"
<< "Iterations=" << (count - 1) / 2 << "\n\n"
<< "Lower=" << to_string(state.bounds.leftmost.value)
<< "\n\n"
<< "Upper=" << to_string(state.bounds.rightmost.value);
format_str = format_stream.str();
format_stream.str("");
format_str_width = MeasureText(format_str.c_str(), FONT_SIZE * 2);
@@ -169,8 +179,8 @@ int main(void)
state.draw_nodes();
state.draw_bounds();
state.draw_iteration_nodes();
DrawText(format_str.c_str(), WIDTH / 2 - format_str_width / 2,
LINE_TOP - HEIGHT / 4, FONT_SIZE * 2, WHITE);
DrawText(format_str.c_str(), WIDTH / 2 - format_str_width / 2, HEIGHT / 8,
FONT_SIZE, WHITE);
EndDrawing();
}
CloseWindow();