Files
fn_registry/cpp/apps/chart_demo/main.cpp
T
egutierrez 73a4c3a148 feat: add C++ support with ImGui/ImPlot framework and vendor submodules
Añade soporte C++ al registry: vendor submodules (glfw, imgui, implot, tracy),
sistema de build con CMake y toolchains cross-platform, runner C++ en fn CLI,
parser de tests Google Test, y funciones bash para build Linux/Windows.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-06 23:46:36 +02:00

80 lines
2.5 KiB
C++

#include "app_base.h"
#include "imgui.h"
#include "implot.h"
#include "viz/line_plot.h"
#include "viz/scatter_plot.h"
#include "viz/bar_chart.h"
#include "viz/heatmap.h"
#include "core/fps_overlay.h"
#include <cmath>
#include <vector>
// Generate sample data
static constexpr int N = 500;
static float xs[N], ys_sin[N], ys_cos[N];
static float scatter_x[200], scatter_y[200];
static const char* bar_labels[] = {"Go", "Python", "Bash", "TypeScript", "C++"};
static float bar_values[] = {201.0f, 202.0f, 38.0f, 80.0f, 5.0f};
static float heat_data[10 * 10];
static bool data_initialized = false;
static void init_data() {
if (data_initialized) return;
for (int i = 0; i < N; i++) {
xs[i] = static_cast<float>(i) * 0.02f;
ys_sin[i] = sinf(xs[i]);
ys_cos[i] = cosf(xs[i]);
}
for (int i = 0; i < 200; i++) {
scatter_x[i] = static_cast<float>(rand()) / RAND_MAX * 10.0f;
scatter_y[i] = scatter_x[i] * 0.5f + (static_cast<float>(rand()) / RAND_MAX - 0.5f) * 3.0f;
}
for (int i = 0; i < 100; i++) {
int r = i / 10, c = i % 10;
heat_data[i] = sinf(r * 0.5f) * cosf(c * 0.5f);
}
data_initialized = true;
}
static void render() {
init_data();
fps_overlay();
// Full-window dockspace
ImGui::DockSpaceOverViewport(0, ImGui::GetMainViewport());
if (ImGui::Begin("fn_registry — Chart Demo")) {
if (ImGui::BeginTabBar("##charts")) {
if (ImGui::BeginTabItem("Line Plot")) {
ImGui::Text("sin(x) — %d points", N);
line_plot("Sine Wave", xs, ys_sin, N);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Scatter Plot")) {
ImGui::Text("y = 0.5x + noise — 200 points");
scatter_plot("Scatter Data", scatter_x, scatter_y, 200);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Bar Chart")) {
ImGui::Text("Functions per language in fn_registry");
bar_chart("Registry Languages", bar_labels, bar_values, 5);
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Heatmap")) {
ImGui::Text("sin(r) * cos(c) — 10x10 matrix");
heatmap("Correlation Matrix", heat_data, 10, 10, -1.0f, 1.0f);
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
}
ImGui::End();
}
int main() {
return fn::run_app({.title = "fn_registry — Chart Demo", .width = 1400, .height = 900}, render);
}